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Home My WebLink About208-201 0 • Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. c O' - cO 1 Well History File Identifier Organizing (done) Two -sided III 1 111 I II 111 ❑ Rescan Needed I 11111 1 111 RE CAN DIGITAL DATA OVERSIZED (Scannable) C for Items: Di Diskettes, No. ❑ M s: Greyscale Items: ❑ Other, No/Type: Other Items Scannable by i.00 a Large Scannerv L 06 / Tki Sv Amy ❑ Poor Quality Originals: OVERSIZED (Non - Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Date: 1 /s/ P Project "ect Proofin I 1 11111 Proofing BY: Maria Date: 1 PO 11,g— /s/ \MP Scanning Preparation U x 30 = d�`Tv + 1 3 = TOTAL PAGES 5 ,, g p (Count does not include cover sheet) n BY: Date: r' r O /s/ �' t Production Scanning 11 Stage 1 Page Count from Scanned File: a5 (Count does include cover sheet) Page Count Matches Number in Scannin Preparation: V YES NO BY: Maria Date: ` (O ( �„ /s/ � n/i Stage 1 If NO in stage 1, page(s) discrepan es were found: YES NO BY: Maria Date: /s/ IIII Scanning is complete at this point unless rescanning is required. I 111111111 ReScanned 1 111111111 11111 BY: Maria Date: /s/ Comments about this file: Quality Checked III I 12/22(2011 Well History File Cover Page.doc DATA SUBMITTAL COMPLIANCE REPORT 10/26/2011 Permit to Drill 2082010 Well Name /No. BLUEBUCK 6 -7 -9 Operator UNION OIL CO OF CALIFORNIA API No. 50- 223 - 20024 -00 -00 MD 4500 TVD 4500 Completion Date 3/18/2009 Completion Status P &A Current Status P &A UIC N REQUIRED INFORMATION Mud Log Yes Samples No Directional Surve No DATA INFORMATION Types Electric or Other Logs Run: Text to long for this data field. See 10 -407 (data taken from Logs Portion of Master Well Data Maint Well Log Information: III Log/ Electr Data Digital Dataset Log Log Run Interval OH / .Type Med /Frmt Number Name Scale Media No Start Stop CH Received Comments Rpt Report: Final Well R Open 4/6/2009 Final Well Report, Tab of Cont, Equip & Crew, Well Details, Geo Data, Drill Data, Daily Reports ED C 17768 tTeport: Final Well R Open 4/6/2009 Final Well Report, Tab of Cont, Equip & Crew, Well 1 Details, Geo Data, Drill Data, Daily Reports, Mud logs in PDF graphics C cL Mud Log 2 Col 183 4500 Open 4/6/2009 MD Formation Log jog Mud Log 2 Col 183 4500 Open 4/6/2009 MD QFT II Combo Log {,Log Mud Log 2 Col 183 4500 Open 4/6/2009 MD LWD Combo Log -/tog Mud Log 2 Col 183 4500 Open 4/6/2009 MD Gas Ratio /Log Mud Log 2 Col 183 4500 Open 4/6/2009. MD Drilling Dynamics 41) /I Sonic 5 Col 150 1910 Open 4/6/2009 Best DT Sonic Vision Run 1 Log Sonic 5 Col 1700 4400 Open 4/6/2009 Best DT Sonic Vision Run 2 og Sonic 2 Col 72 4462 Open 4/6/2009 MD Sonic Vision Log Sonic 5 Col 72 4462 Open 4/6/2009 MD Sonic Vision 'Log Induction /Resistivity 5 Col 72 4462 Open 4/6/2009 MD Vision Service Log Induction /Resistivity 2 Col 72 4462 Open 4/6/2009 MD Vision Service / Log Drill Rate OTH Col 179 1887 Open 4/6/2009 Drilling and Process Mechanics (TIME) log Real Time Field Print ,Log Drill Rate OTH Col 72 4462 Open 4/6/2009 Drilling and Process Mechanics (TIME) log Real Time Field Print DATA SUBMITTAL COMPLIANCE REPORT 10/26/2011 Permit to Drill 2082010 Well Name /No. BLUEBUCK 6 -7 -9 Operator UNION OIL CO OF CALIFORNIA API No. 50- 223 - 20024 -00 -00 MD 4500 TVD 4500 Completion Date 3/18/2009 Completion Status P &A Current Status P &A UIC N .rt Drill Rate 2 Col 72 4462 Open 4/6/2009 MD Drilling and Process Mechanics (DEPTH) log Recorded Mode -f Induction /Resistivity 2 Col 1820 4420 Open 4/6/2009 MD Eco View j— Tpt Report: Final Well R Open 4/20/2009 ***REDO*** Final Well Report, Tab of Cont, Equip & Crew, Well Details, Geo • Data, Drill Data, Daily Reports -ED C Dls 17908 Induction /Resistivity 112 4497 Open 4/23/2009 LAS, META, DLIS for multi Combo Logs in digital form. _Log Induction /Resistivity 25 Col 250 4492 Open 4/23/2009 MD High Definition Induction, Micro Laterolog, , Comp Z -Deni, Comp 1 Neutron, GR, Caliper 25- i Feb -2009 "Cog Magnetic Resonance 5 Col 1932 4470 Open 4/23/2009 MD NMR Explorer, PoroPerm + Heavy Oil 26- Feb -2009 g Sonic 5 Col 1916 4492 Open 4/23/2009 MD X -Multi Array Acoustilog 25- Feb -2009 1 g Magnetic Resonance 5 Col 1916 4485 Open 4/23/2009 MD Magnetic Resonance Explorer Log, Field 1 Presentation 25- Feb -2009 LoW Sonic 5 Col 1848 4438 Open 4/23/2009 MD Multipole Array Acoustilog 5- Mar -2009 • ,kog Magnetic Resonance 5 Col 1930 4476 Open 4/23/2009 MD Magnetic Resonance Explorer Log, 2D NMR Analysis D -T2int 26 -Feb- 2009 -L'‘g Magnetic Resonance 5 Col 1932 4350 Open 4/23/2009 MD Magnetic Resonance Explorer Log, Intergrated Petrophysical Analysis 26- v Feb -2009 Log Sonic 5 Col 1940 4430 Open 4/23/2009 MD Multipole Array Acoustilog Azimuthal Anisotropy Analysis 5 -Mar- 2009 DATA SUBMITTAL COMPLIANCE REPORT 10/26/2011 Permit to Drill 2082010 Well Name /No. BLUEBUCK 6 -7 -9 Operator UNION OIL CO OF CALIFORNIA API No. 50- 223 - 20024 -00 -00 MD 4500 TVD 4500 Completion Date 3/18/2009 Completion Status P &A Current Status P &A UIC N Pressure OTH Col 1960 4110 Open 4/23/2009 Reservoir Characterization Instrument Sample View Log, Fast Response Quartz Guage, GR 7-Mar- 2009 ____Log Sample 5 Col 1964 4112 Open 4/23/2009 MD Rotary Sidewall Coring Tool 26- Feb -2009 L SeismicNelocity 5 Col 200 4112 Open 4/23/2009 MD Seismic Correlation, • GR 26- Feb -2009 g Induction /Resistivity 5 Col 72 4462 Open 5/1/2009 MD Vision Service 24 -Feb- 2009 * *CORRECTED** Induction /Resistivity 2 Col 72 4462 Open 5/1/2009 MD Vision Service 24 -Feb- 2009 * *CORRECTED ** 4eg See Notes OTH Col 179 1887 Open 5/1/2009 Drilling and Process Mechanics (TIME) log Field Print 20- Feb -2009 * *CORRECTED ** See Notes Col 72 4462 Open 5/1/2009 Drilling and Process Mechanics (TIME) log Field Print 20- Feb -2009 * *CORRECTED ** Log Sonic 2 Col 72 4462 Open 5/1/2009 MD Sonic Vision 24 -Feb- 2009 * *CORRECTED ** Sonic 5 Col 1 150 1900 Open 5/1/2009 MD Best DT Sonic Vision Run 1 **CORRECTED** III * *CORRECTED ** /g Sonic 5 Col 2 1700 4400 Open 5/1/2009 MD Best DT Sonic Vision Run 2 24- Feb -2009 * *CORRECTED ** vdg Sonic 5 Col 72 4462 Open 5/1/2009 MD Sonic Service 24-Feb- 2009 * *CORRECTED ** i C Las 17935 'Induction /Resistivity 72 4500 Open 5/1/2009 CORRECTED MWD -LWD Field Data pt Miscellaneous 0 0 Open 5/28/2009 Rotary Sidewall Core Photography by Weatherford Labs Rpt Analysis - Misc 0 0 Open 6/18/2009 Core Analysis Report by Weatherford Labs ED C Pdf 18190 ` Analysis - Misc 1962 4112 Open 6/18/2009 Core Analysis Report by / Weatherford Labs ..-R SeismicNelocity 0 0 Open 7/27/2009 Velocity Survey Report DATA SUBMITTAL COMPLIANCE REPORT 10/26/2011 Permit to Drill 2082010 Well Name /No. BLUEBUCK 6 -7 -9 Operator UNION OIL CO OF CALIFORNIA API No. 50- 223 - 20024 -00 -00 MD 4500 TVD 45 0 Completion Date 3/18/2009 Completion Status P &A Current Status P &A UIC N ' C Wrd 18374 SeismicNelocity 0 0 Open 7/27/2009 VSP data format SEGY pt Analysis - Misc 0 0 Open 8/19/2009 Multiple analyis, Fluid Sample RCI data sheets. pt Sample 0 0 Open 9/3/2009 Scanning Electron Microphotographcs Report I •56 Las 17769 wee Notes 0 4500 Open Drilling Mechanics Logs, LWD Fm Evaluation Logs, • and Dir Survey Well Cores /Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments Cores and /or Samples are required to be submitted. This record automatically created from Permit to Drill Module on: 12/24/2008. ADDITIONAL INFORMATION Well Cored? P N 1, Daily History Received? -6 N Chips Received? s ,� C - ' �� "" \ Formation Tops V N 6Y Analysis / N 1 Received? Comments: • Compliance Reviewed By: _ — — Date: �D (1� )■:1 �� I a MEMORANDUM State o fr Alaska Alaska Oil and Gas Conse rvation Co mmission TO: Jim Regg, DATE: September 21, 2009 P.I. Supervisor 1 e 1C- FROM: Chuck Scheve, SUBJECT: Location Clearance Petroleum Inspector Union Oil Co of California Bluebuck 6 -7 -9 PTD 2082010 - Monday, September 21, 2009; I performed a Location Clearance Inspection of Union Oil Company of California (Union)'s exploratory well Bluebuck 6 -7 -9. This exploratory location was clean with no evidence of past drilling activity other - than the cellar area, which was mounded nicely to prevent ponding. SUMMARY: I made a Location Inspection of the Union abandoned exploratory well Bluebuck 6 -7 -9 and recommend this final location clearance be approved. �. mss' a . . - s • }''^ * .� °. y °' „ rte. , l -,fir. - fix . +- m, - , .... t3 ,mow.' . " a." f - s _ ..- , 7 .w r -. 7 - yy "' +.d' r' �. S '►ti 'fi'''x' s i7Y. Jh . 44 i > f s I may .,w yip.:. ^x -, . ' v .r a 'w . "- a^' I > a^ ; .. ter ' t,:,,—,::„:44,*--,...„—. ^ ,- +�, " � .= r � � 'fit gy p., 4 y. r ep a _.,..„, CHEVRON Chevron U.S.A. tr`! . • No. 2009.08125 Box 36366 25 REQUEST DATE Houston, TX 77236 11111 S. Wilcrest ORIGINAL Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA s H AOGCC Christina Mahnken From: David Buthman 333 West 7 Ave, Suite 100 T Anchorage, Alaska 99501 Sent by: Norma Blake 0 Shipped Via: FedEx Tracking Number: 885629510010977 Bluebuck 6-7-9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 Lab Bluebuck 6 -7 -9 Alaska, White Hills 1 Report Microphotographs Chevron's Lab - Scanning Electron Microphotographs - Aug. 25, 2009 PLEASE ACKNOWLED E'RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY OR`FA UNG TO (281)551-3592 • \:i / I 1, Date j? . R /15/)11119 1 _ CHEVRON Chevron U.S.A. 11 S No. 2009.08107 REQUEST DATE P.O. Box 36366 Houston, TX 77236 11111 S. Wilcrest ORIGINAL Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA s AOGCC H Christina Mahnken 333 W 7 Ave Ste 100 From: David Buthman Anchorage, Alaska 99501 T United State America Sent by: Norma Blake 0 Shipped Via: FedEx Tracking No.: 885629510010557 Bluebuck 6-7-9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 Paper Print Bluebuck 6-7-9 Alaska, White Hills Paper copy API Estimate memo (email /memo) from Chevron Geochemist dated 6/20/2009 1 Paper Print Bluebuck 6 -7 -9 Alaska, White Hills Paper copy Schlumberger: Oilphase -DBR Sampling and Analysis Services Fluid Sampling Report, RCI Analyses 1 Paper Print Bluebuck 6-7-9 Alaska, White Hills Paper copy RCI: Datasheets PLEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY nt114 - 92 Date AUG 1 9 2009 Alaska 011 & Gas Cons. tCom issinr Anchorage cd off-a d 52r7 /')nn4 1 _ • Kline, Lynda From: Buthman, David B Sent: Thursday, August 06, 2009 1:29 PM To: Kline, Lynda Subject: FW: API estimate in Bluebuck From: Curiale, Joe Sent: Wednesday, June 10, 2009 8:20 AM To: LeMieux, Vince J.; Buthman, David B Subject: API estimate in Bluebuck 10 June 2009 Vince & Dave This note follows after, and is patterned from, the note I sent you on 20 May concerning an API estimate for oil extracted from the 3960ft RSWC in Muskoxen 36 -7 -8. A few days ago I received the final dataset for oil extracted from the 4014ft RSWC in Bluebuck 6 -7 -9, and this e-mail applies to this Bluebuck extract the API - estimation method that I developed in 2006 for oils in this part of Alaska. [As a reminder, the method is spelled out in another e-mail, sent to you that year, which I have attached here. The details of the technique, including the many caveats of the method, are noted in the *.xls spreadsheet embedded in that e- mail.] [As with the estimate for the Muskoxen sidewall extract, it is noted that the 2006 API estimation work was never followed up with analyses of more oils. That work was based largely on reservoir rock extracts, and was supposed to be followed up by analyses of local (Kuparuk) oils that we were going to get, from Conoco - Phillips, I think. That never happened, so the confidence level in this API - estimation method is not high. Nevertheless, as you'll see below, it came up with a reasonable number, which is similar to that of the Muskoxen estimate (e -mail to you 20 May 2009).] With reference to the formula in the spreadsheet embedded in the attached e-mail, the values used in the calculation are (as derived from isotopic and GC -MSD analyses): • d13C(aliph) = -29.0 • Ts /Ts +Tm = 0.58 • C24tetra /C26tri = 0.38 • C23 /C24- tricyclics = 1.22 • C26 /C25- tricyclics = 0.87 The B (coefficient) factor and the resultant value for these parameters are, in the order given above: • - 0.7489, 21.72 • - 33.610, -19.49 • - 2.1745, -0.83 • - 39.5948, -48.31 • 15.2448, 13.11 The resultant value, using an intercept of 64.64 (i.e., the sum of 64.64 and the 5 numbers in the second column above), gives an API estimate of 30.8. As with the Muskoxen estimate provided previously, there is a slop of at least 3 degrees 1 • • and possibly 5 degrees or more — I can't put an exact number on it, because the learning set to do the original regression was not large enough to be statistically valid (that's why we wanted to do the followup oil analyses, to obtain statistical validity). Anyway, bottom line is that the existing API estimation method for the White Hills project provides an API gravity estimate of 30.8 for the oil extracted from the RSWC at 4014ft in Bluebuck 6 -7 -9. Note that this is a few degrees higher than the 27.8 gravity estimate for the Muskoxen RSWC, which is consistent with the observation that the extract from the Bluebuck core has a more robust "light end" and a much more "oil -like" appearance. This would suggest that the Bluebuck core extract contains less syndepositional organic matter and Tess contaminant organic matter from the drilling mud — in short, that the Bluebuck core extract is more characteristic of what the oil would like on test, relative to the Muskoxen core extract. [I should also note that the source -based properties of both extracts indicate that they are commonly sourced, once allowances are made for syndepositional and mud - derived organic matter mixing in with the autochthonous (migrated) oil in the core.] Regards Joe P.S. I'm at 281 750 6349 today if you want to discuss this further. Joseph A Curiale Chevron Energy Technology Company 1500 Louisiana Street Houston, Texas 77002 832 -854 -6770 (office) 832 - 854 -7018 (fax) jcuriale(E'chevron. com 2 N. Client: Chevron Well: Bluebuck Schlumberger Job No: AK 094 Field: Exploratory Date: 26 /Feb /09 Rig: N/A Analysis Summary Sample . Sample SamOe Sample Chamber Density (sg) Total Dissolved Solids Salinity Condsclivity Resistivity * p11 Chlorides Potassium No Date Time Nature $/N g / an @ 60 °F" mg / L @ °F ppm 0 °F mS 1 cm @ °F Om G °F pH - °F mgIL MA- RC! RCI Run 1 Shrader Bluff C; 4,110' MD, 1,723 psi, 88 °F 1.05 1 /Mar /09 0:23 Water 10177207 1.012 20,500 @ 64.4 21,400 @ 64.4 31.5 @ 70.3 0.317 @ 70.3 8.0 @ 64.2 11,650 5,600 1.06 1/Mar /09 3:45 Water 10157600 1.014 20,300 @ 79.8 21,100 @ 79.8 35.7 © 81.1 0.280 @ 81.1 8.0 @ 72.1 12,300 5,800 1.07 1 /Mar /09 11:12 Water 10056342 1.016 22,000 @ 75.0 22,900 @ 75.0 35.6 @ 75.2 0.281 @ 75.2 8.0 @ 69.4 13,000 6,500 Lower Shrader Bluff ; 3,769 ' MD, 1,533 psi, 72 °F 1.08 2/Mar /09 15:13 Water 10056413 1.010 8,910 @ 71.2 9,200 @ 71.1 14.84 @ 71.4 0.674 @ 71.4 8.3 @ 67.4 4,800 1.09 2/Mar /09 17:41 Water 10157597 1.009 6,950 @ 71.9 7,200 @ 71.9 11.93 @ 72.5 0.838 @ 72.5 8.4 @ 65.6 3,500 Shrader Bluff Al; 3,143 ' MD, 1,218 psi, 62 °F 1.10 2/Mar /09 23:21 Water 10157592 1.005 2,010 @ 74.3 2,000 @ 74.3 3.78 @ 74.4 2.646 @ 74.4 8.4 © 70.1 465 1.11 2/Mar /09 23:27 Water 10056360 1.006 1,985 @ 71.6 2,000 @ 71.9 3.61 @ 71.6 2.770 @ 71.6 8.4 @ 67.8 470 100 Shrader Bluff A; 2,624' MD, 861 psi, 58 °F 1.12 3/Mar /09 6:31 Water 10056412 1.009 3,880 @ 73.4 4,000 @ 73.2 7.01 @ 73.5 1.427 @ 73.5 8.4 @ 70.1 2,100 1.13 3 /Mar /09 6:37 Water 10157565 1.007 3,860 @ 77.0 4,000 @ 77.0 7.28 @ 77.1 1.374 @ 77.1 8.4 @ 71.9 1,855 Lower Ugnu B; 2,173' MD, 730 psi, 53 °F • 1.14 3/Mar /09 15:18 Water 10157566 1.005 3,250 @ 67.1 3,300 @ 67.1 5.49 @ 67.1 1.835 @ 67.1 8.6 @ 68.0 1,660 1.15 3 /Mar /09 15:32 Water 10157570 1.005 3,100 @ 67.2 3,200 @ 67.2 5.25 @ 67.2 1.905 @ 67.2 8.6 @ 66.2 1,950 Lower Ugnu; 1,964' MD, 672 psi, 52 °F I 1.16 3 /Mar /09 21:25 Water 10177215 1.004 2,340 @ 68.1 2,400 @ 68.1 4.05 @ 68.1 2.469 @ 68.1 8.4 @ 67.2 1,635 1.17 3 /Mar /09 21:30 Water 10177206 1.005 2,390 © 70.1 2,400 @ 69.9 4.23 @ 70.3 2.364 @ 70.3 8.3 @ 82.0 1,700 * Resistivity was converted from Conductivity measurement The data in this report remains the property of the client and may not be disclosed or reproduced without the client's permission. © 2005 Oilphase -DBR Sampling Services - Sampling Report (Field Test - Rev -01). 1 Client: Chevron Well: Bluebuck Schlumberger Job No: AK 094 Field: Exploratory Date: 26 /Feb /09 Rig: N/A Analysis Summary Sample Salvia . S imple Sample Chamber Density (sg) Total Dissolved Solids . Saliniky Conductivity Resistivity " pH Chlorides Potassium No Date Time Nature Ski g / on @ 60 °F mg / 1. @ °F ppm @ °F mS / cm @ °F am @ °F pH @ °F mg/t.. n.. Atmospheric Samples 1.01 23 /Feb /09 6:00 Filtrate n/a 1.048 68,200 @ 69.2 n/a 92.3 @ 68.5 0.108 @ 68.5 n/a 47,500 47,500 • 1.02 23 /Feb /09 6:00 Mud n/a n/a n/a n/a n/a n/a n/a n/a n/a 1.03 24 /Feb /09 0:50 Mud n/a n/a n/a n/a n/a n/a n/a n/a n/a 1.04 24 /Feb /09 12:35 Mud n/a n/a n/a n/a n/a n/a n/a n/a n/a 1.18 3 /Mar /09 21:00 Mud n/a n/a n/a n/a n/a n/a n/a n/a n/a i The data in this report remains the property of the client and may not be disclosed or reproduced without the client's permission. © 2005 Oilphase -DBR Sampling Services - Sampling Report (Field Test - Rev -01). 2 • • Blue Buck 6 -7 -9 RCI Run RCI= Reservoir Charaterization Instrument (Baker Atlas Tool) Sample # Tank SN Depth Formation 1 10177207 4110 SBC 2 10157600 4110 SBC 3 10056342 4110 SBC 4 10056413 3769 Iwr SBB 5 10157597 3769 Iwr SBB 6 10157592 3143 SBA-1 7 10056360 3143 SBA -1 8 10056412 2624 SBA 9 10157565 2624 SBA 10 10157566 2173 Iwr ugnu B 11 10157570 2173 Iwr ugnu B 12 10177215 1964Iwrugnu 13 10177206 1964lwrugnu 14 15 16 17 18 8/7/200911:38 AMO : \NAU \MCBU\Alaska \NewVentures \North Slope \Prospects \White Hills \OPs - Well Evaluation \Wellsite Geology \Bluebuck 6 -7 -9 \Fluid Analysis\ Blue_ Buck_RCI_fluid_sample.xlsSample SN Well Name: Blue Buck 6 -7 -9 Contractor name: Baker Atlas Zone name Schradder Bluff C Example discription Example comments Tool name: 1 RCI -probe tool on drill pipe Zone depth (ft) top /btm 4108/4130 water feature increase draw down Tool setting_ depth (ft) 4110 oil feature rise shut in 5 min K/U, Reservoir Est Reservoir OPER -Reps Kirt Starkey oil feature down set obtain seal Mud Resist, and /cp Temp Pressure Rm Qiang Sun erratic 16.6 85 1723 0.128 zdl 3.8 cn Instructions: Enter header information. Enter mud resistivity prior to setting tool. Set tool and perform drawdown /PBU and enter reservoir temp, pressure,mobility k/u prior to reopen to flow. Intial time entry is the time tool is re - opened to flow after drawdown /PBU.. 1 I Time interval is up to operator, however recommand 15 min reading for first 1.5 hr and 30 min reading for the rest of survey. Enter post - sample drawdown cc's and PBU final pressure (compare to initial Pr before flowing) . After upsetting tool, enter mud resistivity (compare to Rm before flowing) & hydrostatic. Yellow highlight area means require inputs Accumulate Rt Bottom Hole Bottom Hole Pressure Draw Down Accumlate Flow Rate NIR description (Spectrum, Operator Date Time time o.m Temperature Pressure PSIG % Litter L/hr Refract Index) Comment initials 02/28/09 3:23 PM 0:00:00 0.126 85.12 1715 8 0.5% 0 Open tool to flow Randy 3:46 PM 0:23:00 0.205 85.9 1438 285 16.5% 5 13.0 water feature Randy 4:00 PM 0:37:00 0.24 86.25 1510 213 12.4% 8 12.9 water feature Randy 4:27 PM 1:04:00 0.285 86.705 1567 156 9.1% 13 11.1 water feature Randy • 5:01 PM 1:38:00 0.331 87.064 1403 320 18.6% 20.5 13.2 water feature Randy 5:51 PM 2:28:00 0.665 87.432 1299 424 24.6% 31.5 13.2 water feature Randy 6:12 PM 2:49:00 0.683 87.567 1557 166 9.6% 36.5 14.3 water feature Randy 6:46 PM 3:23:00 0.322 87.684 293 1430 83.0% 45.5 15.9 WF change to OF RT changed, Pressure drop, tool may F Randy 7:24 PM 4:01:00 0.173 87.8 1033 690 40.0% 0 -71.8 mud feature Reverse pump, free the tool. Slowly pur Randy 7:42 PM 4:19:00 0.195 87.2 1183 540 31.3% 0.5 1.7 mud feature Randy 8:02 PM 4:39:00 0.231 87.9 991 732 42.5% 1 1.5 mud feature Randy 8:25 PM 5:02:00 0.252 88 860 863 50.1 % 1.5 1.3 mud feature Randy 9:16 PM 5:53:00 0.262 66.688 798 925 53.7% 2 0.6 mud to oil feature 9:34 PM 6:11:00 90 88 833 890 51.7% 2.5 1.7 mud to oil feature Rt increase dramaticlly Randy 9:46 PM 6:23:00 9900 88 806 917 53.2% 2.5 0.0 oil feature? Rt keep build up Randy 10:20 PM 6:57:00 5400 88 828 895 51.9% 3 0.9 oil feature? Randy 11:04 PM 7:41:00 5630 88 866 857 49.7% 3.5 0.7 oil feature? Randy 11:41 PM 8:18:00 5322 88 771 952 55.3% 4 0.8 oil feature? when ever stop the pump and build up p Randy 12:00 AM 8:37:00 5372 88 676 1047 60.8% 4.5 1.6 oil feature Randy 03/01/09 12:00 AM 12:23 AM 9:00:00 5450 88 1027 696 40.4% 5 0.6 oil feature Open one chamber to clect a safty saml Randy 1:43 AM 10:20:00 5182 88 772 951 55.2% 5.5 0.4 oil feature close the chamber Randy 2:05 AM 10:42:00 1.9 88 1158 565 32.8% 6 1.4 oil feature Randy 2:38 AM 11:15:00 5527 88 710 1013 58.8% 6 0.0 oil feature Randy 3:45 AM 12:22:00 oil feature? Open second chamber Randy 5:15 AM 13:52:00 0.275 88 1714 9 0.5% 7.5 0.6 oil feature? close the chamber Randy 5:38 AM 14:15:00 0.275 88 1716 7 0.4% 8 1.3 oil feature? close the pump and let pressure to builc Randy 10:20 AM 18:57:00 0.264 88.000 1722 1 0.1% 0 -1.7 oil feature? start to re -pump Randy III 10:38 AM 19:15:00 0.861 88.700 891 832 48.3% 0 0.0 oil feature? The resistivity going down, suspect re -ir Randy /Kevin 10:44 AM 19:21:00 5348.000 88.696 644 1079 62.6% 0.5 5.0 oil feature pump 0.5 liter and Rt going up. Randy /Kevin 10:53 AM 19:30:00 5497.000 86.688 615 1108 64.3% 0.5 0.0 oil feature hard to pump Randy /Kevin 11:12 AM 19:49:00 5260.000 88.000 802 921 53.5% 1 1.6 oil feature open the chamber to collect the third sa Randy /Kevin 12:27 PM 21:04:00 0.713 88.600 1690 33 1.9% 1.5 oil feature close the chamber Randy /Kevin 12:28 PM close the tool, reverse pump, inside too Randy /Kevin Conclusions: The tool had been plugged up, indicate heavy oil. After reverse pumping, the Probe is partially free of plug, but still flow very slow, about 0.7 L/hr. The Rt is high when fluid is moving, but once shut down the pump, the Rt went below 1. It is very possible that we got some oil sample in the tank. Notes: Because it is very difficult to pump in fluid after collect second sample, we shut the pump for about 4.5 hrs to let pressure build up. Recommendations: Detail map Coville sand, correlate amplitude with porosity and permeability, us well informaiton to map isopach and evaluate the enconomy of this zone. i Well Name: Blue Buck 6 -7 -9 Contractor name: Baker Atlas Zone name Schrader Bluff B Example description Example comments Tool name: I RCI -probe tool on drill pipe Zone depth (ft, top /btm 3707/3800 MD water feature increase draw down Tool setting depth (ft) 3769 MD oil feature rise shut in 5 min K/U, Reservoir Est Reservoir Mud Resist, OPER -Reps Kirt Starkey oil feature down set obtain seal and /cp Temp Pressure Rm Qiang Sun irratic 15.5 66.35 1534 0.14 zdl 3.8 cn Instructions: Enter header information. Enter mud resistivity prior to setting tool. Set tool and perform drawdown /PBU and enter reservoir temp, pressure,mobility k/u prior to reopen to flow. Intial time entry is the time tool is re - opened to flow after drawdown /PBU.. 1 Time interval is up to operator, however recommend 15 min reading for first 1.5 hr and 30 min reading for the rest of survey. Enter post - sample drawdown cc's and PBU final pressure (compare to initial Pr before flowing) . After unsetting tool, enter mud resistivity (compare to Rm before flowing) & hydrostatic. Yellow highlight area means require inputs Accumulate Rt . Bottom Hole Bottom Hole Pressure Draw Down Accumlate Flow Rate NIR description (Spectrum, Operator Date Time time n.m Temperature Pressure PSIG % Litter Uhr Refract Index) Comment initials 03/02/09 6:42 AM 0:00:00 0.14 66.35 1533 1 0.1% 0 Open tool to flow Randy /Kev 6:54 AM 0:12:00 0.153 65.355 1111 423 27.6% 1 5.0 Mud feature flow rate is slow Randy /Ke 7:02 AM 0:20:00 0.174 65.224 1103 431 28.1% 1.5 3.8 Mud feature Randy /Kevin 7:10 AM 0:28:00 0.196 65.2 1136 398 25.9% 2 3.8 Mud feature Randy /Kevin 7:29 AM 0:47:00 0.234 65.32 1236 298 19.4% 3 3.2 water feature water replace mud Randy /Kevin 7:57 AM 1:15:00 0.273 65.675 1198 336 21.9% 5 4.3 water feature Randy /Kevin 9:03 AM 2:21:00 0.333 66.55 1242 292 19.0% 10 4.5 water feature Randy /Kevin 9:34 AM 2:52:00 0.484 66.9 1042 492 32.1% 12.5 4.8 water feature Randy /Kevin 10:00 AM 3:18:00 0.512 67.35 1088 446 29.1% 15.5 6.9 water feature Randy /Kevin 10:40 AM 3:58:00 0.546 67.99 991 543 35.4% 19.5 6.0 water feature Randy /Kevin i 11:42 AM 5:00:00 0.599 68.879 1170 364 23.7% 26.5 6.8 water feature Randy /Kevin 12:25 PM 5:43:00 0.626 69.443 1091 443 28.9% 31.5 7.0 water feature Randy /Kevin 1:08 PM 6:26:00 0.661 69.9 1174 360 23.5% 36 6.3 water feature Randy /Kevin 1:45 PM 7:03:00 0.687 70.3 1126 408 26.6% 40 6.5 water feature Randy /Kevin 2:45 PM 8:03:00 0.751 70.9 1148 386 25.2% 47.5 7.5 water feature Randy /Kevin 3:13 PM 8:31:00 0.744 71.2 1315 219 14.3% 50 5.4 water feature open chamber to collect a safety sampl Randy /Kevin 3:22 PM 8:40:00 0.752 71.200 1522 12 0.8% 50.5 3.3 water feature close the chamber Randy /Kevin 3:33 PM 8:51:00 0.757 71.200 857 677 44.1% 52 8.2 water feature increase pump rate Randy /Kevin 4:01 PM 9:19:00 0.783 71.510 1069 465 30.3% 55.5 7.5 water feature Randy /Kevin 4:32 PM 9:50:00 0.801 71.600 1063 471 30.7% 58.5 5.8 water feature Randy /Kevin 5:01 PM 10:19:00 0.837 71.900 986 548 35.7% 64.5 12.4 water feature flow rate increase a lot, think maybe bei Randy /Kevin 5:15 PM 10:33:00 0.847 72.000 1074 460 30.0% 66 6.4 water feature Randy /Ket 5:41 PM 10:59:00 0.865 72.260 1091 443 28.9% 70 9.2 water feature open the chamber to collect the second Randy /Ke 5:50 PM 11:08:00 0.870 72.300 1523 11 0.7% 70.5 3.3 water feature close the chamber Randy /Kevin 6:00 PM 11:18:00 0.856 72.400 1743 -209 -13.6% 0 -423.0 close the tool, reverse pumping, Randy /Kevin Conclusions: Lower SBB is water dominant from Rt and Refraction index. Suspect that tool is still artially plugged, because SBC have same mobility but have higher flow rate (13 vs 6 Uhr). Also, with time I observed that flow rate was increasing from 3.8 to 7 Uhr. Notes: The initail mobility is 15 md,. Compare with SBC which is 16.6 md, it is very close. However, the flow rate is about 4 liter per hour, so I suspect there is still some plug with the tool. Recommendations: 1 1 8/7/200911:38 AMO : \NAU \MCBU\Alaska \NewVentures \North Slope \Prospects \White Hills \OPs - Well Evaluation \Wellsite Geology \Bluebuck 6 -7 -9 \Fluid Analysis\ Blue _Buck_RCI_fluid_sample.xlsSBB Well Name: Blue Buck 6 -7 -9 Contractor name: Baker Atlas Zone name Schrader Bluff A Example discription Example comments Tool name: I RCI -probe tool on drill pipe Zone depth (ft) top /btm 2620/2650 MD water feature increase draw down Tool setting depth (ft) 2624 MD oil feature rise shut in 5 min K/U, Reservoir Est Reservoir Mud OPER -Reps Kirt Starkey oil feature down set obtain seal mdlcp Temp Pressure Resist, Qiang Sun irratic 288 57.4 861 0.199 Instructions: Enter header information. Enter mud resistivity prior to setting tool. Set tool and perform drawdown /PBU and enter reservoir temp, pressure,mobility k/u prior to reopen to flow. Intial time entry is the time tool is re - opened to flow after drawdown /PBU.. 1 1 Time interval is up to operator, however recommand 15 min reading for first 1.5 hr and 30 min reading for the rest of survey. Enter post - sample drawdown cc's and PBU final pressure (compare to initial Pr before flowing) . After unsetting tool, enter mud resistivity (compare to Rm before flowing) & hydrostatic. Yellow highlight area means require inputs Accumulate Rt Bottom Hole Bottom Hole Pressure Draw Down Accumlate Flow Rate NIR discription (Spectrum, Operator Date Time time 4.m Temperature Pressure PSIG % Litter L /hr Refract Index) Comment initials 03/03/09 12:58 AM 0:00:00 0.196 57.4 861 0 0.0% 0 mud feature Open tool to flow Randy el 1:14 AM 0:16:00 0.637 57.43 846 15 1.7% 3 11.3 mud feature? Randy 1:31 AM 0:33:00 0.806 57.5 848 13 1.5% 8 17.6 water feature Randy 2:11 AM 1:13:00 1.01 57.5 850 11 1.3% 20 18.0 water feature Randy 2:29 AM 1:31:00 1.055 57.6 849 12 1.4% 25.5 18.3 water feature Randy 2:42 AM 1:44:00 1.099 57.6 851 10 1.2% 29.5 18.5 water feature Randy 5:47 AM 4:49:00 1.453 57.9 851 10 1.2% 86 18.3 water feature Randy 6:07 AM 5:09:00 1.485 57.9 851 10 1.2% 92.5 19.5 water feature call Dave to confirm that after 100 literE Randy 6:23 AM 5:25:00 1.506 57.955 851 10 1.2% 97.5 18.8 water feature Randy 6:31 AM 5:33:00 1.516 57.9 861 0 0.0% 100 18.8 water feature open chamber to collect first sample Randy 6:36 AM 5:38:00 1.54 57.9 861.3 -0.3 0.0% 100.5 6.0 water feature close chamber Randy 6:37 AM 5:39:00 1.56 57.9 850 11 1.3% 101 30.0 water feature open chamber to collect second sampl Randy 6:39 AM 5:41:00 1.529 57.98 861 0.0 0.0% 101 0.0 water feature close chamber Randy 6:44 AM 5:46:00 0.01 61.3 0.0% Close the tool and move to next seriph Randy Conclusions: Rt shows that it is water. Refraction index shows that it is water. • O: \NAU \MCBU\Alaska \NewVentures \North Slope \Prospects \White Hills \OPs - Well Evaluation \Wellsite Geology \Bluebuck 6 -7 -9 \Fluid Analysis\ Blue _Buck_RCI_fluid_sample.xlsSBA Well Name: Blue Buck 6 -7 -9 Contractor name: Baker Atlas Zone name Schrader Bluff A -1 Example discription Example comments Tool name: 1 RCI -probe tool on drill pipe Zone depth (ft) top /btm 3136/3172 MD water feature increase draw down Tool setting depth (ft) 3143 MD oil feature rise shut in 5 min K/U, Reservoir Est Reservoir Mud Resist, OPER -Reps Kirt Starkey oil feature down set obtain seal and /cp Temp Pressure am Clang Sun irratic 726 60.544 1218 0.184 Instructions: Enter header information. Enter mud resistivity prior to setting tool. Set tool and perform drawdown /PBU and enter reservoir temp, pressure,mobility k/u prior to reopen to flow. Intial time entry is the time tool is re - opened to flow after drawdown /PBU.. ( ( 1 Time interval is up to operator, however recommand 15 min reading for first 1.5 hr and 30 min reading for the rest of survey. Enter post - sample drawdown cc's and PBU final pressure (compare to initial Pr before flowing) . After unsetting tool, enter mud resistivity (compare to Rm before flowing) & hydrostatic. Yellow highlight area means require inputs Accumulate Rt Bottom Hole Bottom Hole Pressure Draw Down Accumlate Flow Rate NIR discription (Spectrum, Operator • Date Time time n.m Temperature Pressure PSIG % Litter L/hr Refract Index) Comment initials 03/02/09 7:36 PM 0:00:00 0.184 60.5 1209 9 0.7% 0 Open tool to flow Randy 7:45 PM 0:09:00 0.305 60.45 1197 21 1.7% 1.5 10.0 mud feature Refraction index begin to clean Randy 8:00 PM 0:24:00 0.75 60.61 1194 24 2.0% 7 22.0 water feature flow rate is fast Randy 8:15 PM 0:39:00 1.053 60.89 1192 26 2.1% 14 28.0 water feature Rt increasing steady Randy 8:47 PM 1:11:00 1.631 61.523 1194 24 2.0% 28.5 27.2 water feature Randy 9:09 PM 1:33:00 1.906 61.7 1195 23 1.9% 39 28.6 water feature Randy 9:27 PM 1:51:00 2.042 62.2 1195 23 1.9% 47.5 28.3 water feature Randy 9:48 PM 2:12:00 2.133 62.5 1196 22 1.8% 57 27.1 water feature Randy 10:12 PM 2:36:00 2.184 62.8 1196 22 1.8% 68 27.5 water feature Randy 10:40 PM 3:04:00 2.2 63 1197 21 1.7% 80.5 26.8 water feature Randy 11:13 PM 3:37:00 2.215 63.4 1197 21 1.7% 96.5 29.1 water feature called Dave to confirm that pump to 100L Randy 11:21 PM 3:45:00 2.2 63.4 1217 1 0.1% 100 26.3 water feature open the chamber to collect first sample Randy 11:25 PM 3:49:00 2.22 63.4 1208 10 0.8% 100.5 7.5 water feature close the chamber Randy 11:27 PM 3:51:00 2.227 63.5 1198 20 1.6% 101 15.0 water feature open the chamber to collect second sam Randy 11:29 PM 3:53:00 2.215 63.5 1218 0.0% 101.5 15.0 water feature close the chamber Randy 11:33 PM close the tool and move to next location Randy Conclusions: Both rafration spectrum and resisitivity clearly indicate water fluid. This one have very low contamination, should be very close to original formation water. The resistivity measurement agree with refraction spectrum very well. We can trust Resistivity sensor this time. The flow rate is very high, the plug should be cleaned. ( 1 1 al I 8/7/200911:38 AMO : \NAU \MCBU\Alaska \NewVentures \North Slope \Prospects \White Hills \OPs - Well Evaluation \Wellsite Geology \Bluebuck 6 -7 -9 \Fluid Analysis\ Blue _Buck_RCI_fluid_sample.xlsSBA -1 i Well Name: Blue Buck 6 -7 -9 Contractor name: Baker Atlas Zone name Lower Ugnu B Example description Example comments Tool name: i RCI -probe tool on drill pipe Zone depth (ft) top /btm 2170/2220 MD water feature increase draw down Tool setting depth (ft) 2173 This zone has strange RT log cross over oil feature rise shut in 5 min K/U, Reservoir Est Reservoir Mud OPER -Reps Kirt Starkey oil feature down set obtain seal and /cp Temp Pressure Resist, Rm Qiang Sun irratic 490 53.3 730.3 0.209 Instructions: Enter header information. Enter mud resistivity prior to setting tool. Set tool and perform drawdown /PBU and enter reservoir temp, pressure,mobility k/u prior to reopen to flow. Initial time entry is the time tool is re - opened to flow after drawdown /PBU.. I I Time interval is up to operator, however recommend 15 min reading for first 1.5 hr and 30 min reading for the rest of survey. , Enter post - sample drawdown cc's and PBU final pressure (compare to initial Pr before flowing) . After unsetting tool, enter mud resistivity (compare to Rm before flowing) & hydrostatic. Yellow highlight area means require inputs Accumulate Rt Bottom Hole Bottom Hole Pressure Draw Down Accumulat Flow Rate NIR description (Spectrum, Operate Date Time time o.m _Temperature Pressure PSIG % e Litter L/hr Refract Index) Comment initials 03/03/09 11:16 AM 0:00:00 0.209 53.297 730.3 0 0.0% 0 Mud feature Open tool to flow Randy /Kevin 11:23 AM 0:07:00 0.349 53.4 709 21.3 2.9% 1 8.6 Mud feature and begin to clean Randy /Kevin 11:36 AM 0:20:00 0.75 53.55 715 15.3 2.1% 5.5 20.8 Water feature Randy /Kevin 11:50 AM 0:34:00 0.887 53.6 715 15.3 2.1% 10.5 21.4 Water feature mud has been total clean up, now is filtr Randy /Kevin 12:02 PM 0:46:00 0.983 53.684 714 16.3 2.2% 15.5 25.0 Water feature Randy /Kevin 12:20 PM 1:04:00 1.12 53.7 715 15.3 2.1% 24 28.3 Water feature Randy /Kevin 12:35 PM 1:19:00 1.19 53.7 715 _ 15.3 2.1% 28.5 18.0 Water feature Randy /Kevin 12:46 PM 1:30:00 1.273 53.693 714.8 15.5 2.1% 35 35.5 Water feature Randy /Kevin 1:21 PM 2:05:00 1.433 53.661 715.3 15 2.1% 50 25.7 Water feature Randy /Kevin 1:41 PM 2:25:00 1.499 53.6 715.5 14.8 2.0% 58.5 25.5 Water feature Randy /Kevin 2:10 PM 2:54:00 1.608 53.5 715.7 14.6 2.0% 71 25.9 Water feature Randy /Kevin 2:45 PM 3:29:00 1.726 53.468 715 15.3 2.1% 86 25.7 Water feature Randy /Kevin 3:00 PM 3:44:00 1.775 53.43 716.1 14.2 1.9% 92.5 26.0 Water feature Randy /Kevin 3:08 PM 3:52:00 1.8 53.4 716 14.3 2.0% 96 26.3 Water feature Randy /Kevin 3:18 PM 4:02:00 1.827 53.4 730 0.3 0.0% 100 24.0 Water feature open chamber to collect first sample Randy /Kevin 3:21 PM 4:05:00 1.83 53.4 715 15.3 2.1% 101 20.0 Water feature close the chamber Randy /Kevin 3:32 PM 4:16:00 1.863 53.431 715 15.3 2.1% 105 21.8 Water feature open chamber to collect second sample Randy /Kevin 3:35 PM 4:19:00 1.87 53.4 730 0.3 0.0% 105.5 10.0 Water feature close the chamber close the tool, Refraction back to mud 3:39 PM feature, and Rt back to 0.215 III Conclusions: The fluid is water, Rt is about 1.87 ohm.m. 8/7/200911:38 AMO: \NAU \MCBU\Alaska \NewVentures \North Slope \Prospects \White Hills \OPs - Well Evaluation \Wellsite Geology \Bluebuck 6 -7 -9 \Fluid Analysis\ Blue _Buck_RCI_fluid_sample.xlsLower Ugnu B Well Name: Blue Buck 6 -7 -9 Contractor name: Baker Atlas Zone name Lower Ugnu Example discription Example comments Tool name: I RCI -probe tool on drill pipe Zone depth (ft) top /btm 1950/2030 MD water feature increase draw down Tool setting depth (ft) 1964 oil feature rise shut in 5 min K/U, Reservoir Est Reservoir Mud OPER -Reps Kirt Starkey oil feature down set obtain seal and /cp Temp Pressure Resist, Qiang Sun irratic 600 53.6 672.3 0.231 672.5 Instructions: Enter header information. Enter mud resistivity prior to setting tool. Set tool and perform drawdown /PBU and enter reservoir temp, pressure,mobility k/u prior to reopen to flow. Intial time entry is the time tool is re - opened to flow after drawdown /PBU.. 1 1 Time interval is up to operator, however recommand 15 min reading for first 1.5 hr and 30 min reading for the rest of survey. Enter post - sample drawdown cc's and PBU final pressure (compare to initial Pr before flowing) . After unsetting tool, enter mud resistivity (compare to Rm before flowing) & hydrostatic. Yellow highlight area means require inputs Accumulate Rt Bottom Hole Bottom Hole Pressure Draw Down Accumlate Flow Rate NIR discription (Spectrum, Operatoo Date Time time o.m Temperature Pressure PSIG % Litter L/hr Refract Index) Comment initials 03/03/09 5:28 PM 0:00:00 0.231 53.5 672.3 0 0.0% 0 Mud feature Open tool to flow Randy /Adam 5:32 PM 0:04:00 0.5 53.5 640 32.3 4.8% 1 15.0 Mud feature, begin to clean Randy /Adam 5:35 PM 0:07:00 0.694 53.5 648 24.3 3.6% 3 40.0 water feature Randy /Adam 6:15 PM 0:47:00 1.412 52.6 658 31.5 4.7% 31.5 42.8 water feature Randy /Adam 6:27 PM 0:59:00 1.481 52.5 658 14.3 2.1% 39.5 40.0 water feature Randy /Adam 6:43 PM 1:15:00 1.567 52.5 659 13.3 2.0% 50.5 41.3 water feature Randy /Adam 6:52 PM 1:24:00 1.633 52.53 659 13.3 2.0% 57.5 46.7 water feature Randy /Adam 7:06 PM 1:38:00 1.701 52.5 660 12.3 1.8% 66.5 38.6 water feature Randy /Adam 7:20 PM 1:52:00 1.782 52.5 660 12.3 1.8% 77 45.0 water feature Randy /Adam 7:38 PM 2:10:00 1.854 52.35 660 12.3 1.8% 89 40.0 water feature Randy /Adam 7:56 PM 2:28:00 1.937 52.167 660 12.3 1.8% 102 43.3 water feature Randy /Adam 8:16 PM 2:48:00 2.014 52.04 660 12.3 1.8% 116 42.0 water feature Rt is till gradually building Randy /Adam 8:30 PM 3:02:00 2.061 51.98 660 12.3 1.8% 125 38.6 water feature Randy /Adam 8:40 PM 3:12:00 2.116 51.9 661 11.3 1.7% 132 42.0 water feature Randy /Adam 8:49 PM 3:21:00 2.152 51.89 661 11.3 1.7% 139 46.7 water feature Randy /Adam 8:55 PM 3:27:00 2.171 51.875 661 11.3 1.7% 143.5 45.0 water feature Randy /Adam 9:03 PM 3:35:00 2.208 51.8 661 11.3 1.7% 148.5 37.5 water feature Randy /Adam 9:15 PM 3:47:00 2.253 51.8 661 11.3 1.7% 157 42.5 water feature Randy /Adam 9:21 PM 3:53:00 2.28 51.78 661 11.3 1.7% 161 40.0 water feature Randy /Adam 9:25 PM 3:57:00 2.284 51.7 672 0.3 0.0% 165 60.0 water feature open the chamber to collect first sample Randy /Adam 9:29 PM 4:01:00 2.31 51.7 672 0.3 0.0% 165.5 7.5 water feature close the champber Randy /Ada , 9:30 PM 4:02:00 2.265 51.7 661 11.3 1.7% 166 30.0 water feature open the chamber to collect second san Randy /Adar 9:33 PM 4:05:00 2.3 51.7 672 0.3 0.0% 166.5 10.0 water feature close the champber Randy /Adam 9:37 PM close the tool, and rig down the tool, Rt Randy /Adam Conclusions: The fluid is water. 1 8/7/200911:38 AMO : \NAU \MCBU\Alaska \NewVentures \North Slope \Prospects \White Hills \OPs - Well Evaluation \Wellsite Geology \Bluebuck 6 -7 -9 \Fluid Analysis\ Blue _Buck_RCI_fluid_sample.xlsLower Ugnu • Page 1 of 2 Maunder, Thomas E (DOA) From: Maunder, Thomas E (DOA) Sent: Tuesday, August 04, 2009 8:47 AM To: 'Quick, Mike [ASRC]'; Hammons, Darrell Cc: Pecci, Chris L; Brandenburg, Tim C; Regg, James B (DOA); DOA AOGCC Prudhoe Bay Subject: RE: UOCC White Hills Photos Mike, Darrell, et al, Thanks for providing the photos. Jim and I have examined them. It will be necessary to fill the depressions at the Muskoxen site to promote drainage and prevent ponding. It appears that the end of well work at the Panthera and Bluebuck sites achieved those objectives. Call or message with any questions. �� `1r ` Tom Maunder, PE / \J AOGCC From: Quick, Mike [ASRC] [mailto:MQuick ©chevron.com] Sent: Tuesday, August 04, 2009 8:22 AM To: Maunder, Thomas E (DOA); Regg, James B (DOA) Cc: Hammons, Darrell; Pecci, Chris L; Brandenburg, Tim C Subject: UOCC White Hills Photos Tom /Jim — UOCC has started the summer clean -up work from the White Hills exploration project. Attached are photos of the 3 well sites from the 2009 drilling season. The two cellar areas at the Muskoxen 36 -7 -8 (PTD # 208 -188) have subsided 12 " -18" from ground level. Please see the attached photos. UOCC had your inspector scheduled Friday (8/7) for a site visit, but we would like to coordinate with your office to start remediation, if needed, prior to the planned site visit. Please let me know when it is convenient for you to discuss a plan forward, so we can bring this to a resolution that meets the AOGCC's satisfaction. Regards, Mike Mike Quick Project Manager / Drilling Engineer MidContinent /Alaska SBU Chevron North America Exploration and Production 3800 Centerpoint Drive, Suite 100 Anchorage, Alaska 99503 Direct 907 - 263 -7900 Fax 1- 866 - 480 -5398 mquick@chevron.com 8/4/2009 • • Page 2 of 2 From: Bush, Dean A [Peak] Sent: Sunday, August 02, 2009 6:59 AM To: Hammons, Darrell; Quick, Mike [ASRC] Cc: Henderson, Jennifer Subject: WH Pics Pictures of Cellar locations. As you can see we will need to fill in the cellars at Muskoxen! 8/4/2009 ,.T :. 1 f. } t om, + t .. 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Box 36366 06/09/2009 Houston, TX 77236 ORIGINAL 11111 S. Wilcrest Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA s H AOGCC From: Dave Buthman Christina Mahnken P 333 W 7 Ave Ste 100 T Anchorage, Alaska 99501 Sent by: Norma Blake o United State America Shipped Via: FedEx Bluebuck 6 -7 -9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 Report Bluebuck 6 -7 -9 North Slope -White Hills, Core Final Core Analysis Report Alaska Analysis Omni File No. HH -42839 Report DATE SHIPPED VIA CHEVRON TRANS. NO TRACKING No. 6/09/2009 FedEx CH- 200900609 885629510009032 PLEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING' +,- gii f , Date JUN 1 8 2069 Alaska Oil & GaS0011S.COM Anchorage Qotc-ao (9 CHEVRON Chevron U.S.A., No. 2009-05/18 REQUEST DATE P.O. Box 36366 05/18/2009 Houston, TX 77236 ORIGINAL 11111 S. Wilcrest Houston, TX 77099 TRANSMITTAL OF • CONFIDENTIAL DATA S H AOGCC From: Dave Buthman i Christina Mahnken P 333 W 7 Ave Ste 100 T Anchorage, Alaska 99501 Sent by: Norma Blake O United State America Shipped Via: FedEx Bluebuck 6 -7 -9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 Binder Report Bluebuck 6 -7 -9 North Slope -White Hills, Core Rotary Sidewall Core Photography Alaska Photograph Omni File No. HH -42839 y DATE SHIPPED VIA CHEVRON TRANS. NO TRACKING No. 5/18/2009 FedEx CH- 20090518 885629510008387 PLEASE ACM OW ,EDGE EDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNINR !' .I I ) 561 -3592 MAY 2 8 2009 0/_,V _ Date a Oil & Gas Cons. Commission Anchorage st 9p6r - a 0 I ■ G /1 2 /')nno 1 _ � P.O. Box 36366 REQUEST DATE Houston, TX 77236 04/22/2009 11111 S. Wilcrest ORIGINAL Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA s_. H AOGCC From: David Buthman Christina Mahnken P 333 W 7 Ave Ste 100 T Anchorage, Alaska 99501 Sent by: Norma Blake o United State America s. Shipped Via: FedEx Bluebuck 6-7.9 API: 50.223. 20024 -00 Corrected Copies from Schlumberger April, 2009 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 (CD) Bluebuck 6 -7 -9 - Well Log Data Corrected — Alaska, White Hills Well Data Schlumberger Recorded and Real -Time MWD - LWD Field CD Data 10 Log Prints — Bluebuck 6-7-9 Alaska, White Hills Well Data Schlumberger 1). BestDT Processed SonicVision — Run #1 Log Prints (2 Copies Each) 2). BestDT Processed SonicVision — Run #2 3). SonicVision — MD Recd Mode FLD Print Scale: 1:600 4). SonicVision — MD Recd Mode FLD Print Scale: 1:240 5). VISION Service — MD Recd Mode Fld Print Scale: 1:600 D071- 06 1 6). VISION Service — MD Recd Mode Fld Print Scale: 1:240 (133 7). Time Based Drig Mech — Drig and Process Mech (Time) Log RT Fld Print Surface and Downhole Data — Run #1 8). Time Based DrIg Mech — Drlg and Process Mech (Time) Log RT Fld Print Surface and Downhole Data — Run #2 1 Paper Print Drilling and Measurements Field Support Alaska, White Hills Paper Prints • 1 Paper Print Bluebuck 6-7-9 Survey Report Alaska, White Hills Paper Prints DATE SHIPPED VIA CHEVRON TRANS. NO TRACKING No 04/22/2009 FedEx CH- 20090422 885629510007915 PLEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY OR FAXING TO (281) 561-3592 Date 0- A ,nn / "1nnn 1 'i CHEVRON Chevron U.S.A. Inc. No. 2009 -04/17 REQUEST DATE P.O. Box 36366 04/17/2009 Houston, TX 77236 11111 S. Wilcrest ORIGINAL Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA S H AOGCC From: David Buthman Christina Mahnken P 333 W 7 Ave Ste 100 T Anchorage, Alaska 99501 Sent by: Norma Blake o United State America Shipped Via: FedEx Bluebuck 6-7-9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 (CD) Baker Bluebuck 6-7-9 - Well Log Data — Alaska, White Hills Well Data Hughes CD — MREX, XMAC, CD HDIUMLUZDUCN /GR/CAL, SEISMIC, RCOR, RCI, ANISO Data Format — META, LAS, DLIS 11 Log Prints — Bluebuck 6 -7 -9 Alaska, White Hills Well Data Baker Hughes 1). MREX NMR 110 - (PoroPerm + Heavy Oil) Log Prints (1 Copies Each), 2). XMAC — (X- Multipole Array Acoustilog) 3). MREX — FIELD — (Mag. Reson Expl Log) 4). HDIUMLUZDUCN / GR/CCL — (High Def Ind Log Mic Lat Comp Z -DenL) 5). SEISMIC — (Seis Corr GR Log) 6). RCOR — (Rotary Sidewall Coring Tool) 7). RCI — SHORT — (RES. Chara Inst Smpl Log Fst Resp Quartz Gauge GR Log 0/1 O( 8). ANISO — ( Multpole Array AcoustLog Azim Anisotropy Analysis) 9). MREX— (Mag Resonance Expl Log) / af 10). MREX — (Mag Resonance Expl Log 2D NMR Analysis D -T2 int) 11). ANISO — ( Multipole Array Acoustilog) DATE SHIPPED VIA CHEVRON TRANS. NO TRACKING # 04/1712009 FedEx CH- 2009418 885629510007762 PLEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY OR FAXING TO (281) 561.3592 Date - A /1-7 nnn � 1 cte STATE OF ALASKA ;: 1, ' �p p ¢ ALAS OILAND GAS CONSERVATION COMMISON \/ t� WELL COMPLETION OR RECOMPLETION REPORT AND QG 2009 1a. Well Status: Oil Gas El Plugged El Abandoned 0 Suspended ❑ lb. Well Class: 20AAC25.105 20AAC25.110 Develo M & Gas d f16Fafceytblssion GINE WINJ ❑ WDSPL ❑ WAG ❑ Other No. of Completions: Service ❑ angliogslge Test 2. Operator Name: 5. Date Comp., Susp., or 12. Permit to Drill Number: Union Oil Company of California Aband.: 3/18/2009 208 -201 3. Address: 6. Date Spudded: 13. API Number: PO Box 196247, Anchorage, AK 99519 2/18/2009 50- 223 - 20024 -00 4a. Location of Well (Governmental Section): 7. Date TD Reached: 14. Well Name and Number: Surface: 3302' FSL, 3318' FEL, Sec6, T7N, R9E, Umiat Meridian 2/24/2009 Bluebuck 6 -7 -9 Top of Productive Horizon: 8. KB (ft above MSL): 421' 15. Field /Pool(s): N/A Ground (ft MSL): 400' Exploration Total Depth: 9. Plug Back Depth(MD +TVD): 3320' FSL, 3301' FEL, Sec6, T7N, R9E, Umiat Meridian Surface 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD + ND): 16. Property Designation: Surface: x- 501142.32 y- 5846575.75 Zone- 4 4,500' MD (4,500' ND) ADL389182 [White Hills] TPI: x- N/A y- N/A Zone- 11. SSSV Depth (MD + ND): 17. Land Use Permit: Total Depth: x- 501158.69 y- 5846593.04 Zone- 4 N/A ADNR LAS26542 18. Directional Survey: Yes Q No ❑ 19. Water Depth, if Offshore: 20. Thickness of Permafrost (ND): (Submit electronic and printed information per 20 AAC 25.050) N/A (ft MSL) 1,460' 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): GR- SP- CNL -LDT -Res w /Micro Restivity,MREX, RCOR -Rotary Core,WL RCI(Press/Temp),Drill Conveyed RCI(MDT type),VSP checkshot only 22. CASING, LINER AND CEMENTING RECORD WT. PER SETTING DEPTH MD SETTING DEPTH ND AMOUNT CASING GRADE TOP BOTTOM TOP BOTTOM HOLE SIZE CEMENTING RECORD FT PULLED 16" 85# L -80 0 185' 0 185' Driven N/A 9 -5/8" 40# L -80 0 1,916' 0 1,916' 12 -1/4" 250bb1 10.Oppg Type L & 54 bbl 15.8ppg type G 208bbI 11.5ppg Econolite 4 -1/2" 12.6# L -80 1,764' 4,458' 1,746' 4,458' 8 -1/2" Cement 23. Open to production or injection? Yes ❑ No El If Yes, list each 24. TUBING RECORD interval open (MD+TVD of Top & Bottom; Perforation Size and Number): SIZE DEPTH SET (MD) PACKER SET (MD) N/A N/A N/A 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED N/A N/A 26. PRODUCTION TEST Date First Production: Method of Operation (Flowing, gas lift, etc.): Abandoned N/A Date of Test: Hours Tested: Production for Oil -Bbl: Gas -MCF: Water -Bbl: Choke Size: Gas -Oil Ratio: N/A Test Period Flow Tubing Casing Press: Calculated Oil -Bbl: Gas -MCF: Water -Bbl: Oil Gravity - API (corr): Press. 24 -Hour Rate �■ 27. CORE DATA Conventional Core(s) Acquired? Yes ❑ No o Sidewall Cores Acquired? Yes El No ❑ If Yes to either question, list formations and intervals cored (MD +TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 25.071. 1,962 -1,964 MD/TVD 2,190 -2,192 MD/TVD 2,630 -2,632 MD/ND 3,764 -3,766 MD/TVD 1,964 -1,966 MD/TVD 2,200 -2,202 MD/ND 2,636 -2,638 MD/TVD 3,768 -3,770 MD/TVD 1,992 -1,994 MD/TVD 2,207 -2,209 MD/ND 2,641 -2,643 MD/TVD 4,014 -4,016 MD/TVD 1 2,020 -2,022 MD/TVD 2,216 -2,218 MD/TVD 2,646 -2648 MD/TVD 4,110 -4,112 MD/TVD .� -�.=o9 2,173-2,175 MD/ND 2,222 -2,224 MD/TVD 2,681 -2,683 MD/TVD 4,112-4,114 MD/TVD /j " 2,176 -2,178 MD/TVD 2,617 -2,619 MD/TVD 3,724 -3,726 MD/TVD - . -. -.Mx -, 2,186 -2,188 MD/TVD 2,623 -2,625 MD/TVD 3,733 -3,735 MD/ND (A lithologic description will be included in tin, cleNtob diita packet & copies of all logs) Form 10 -407 Revised 2/2007 CONTINUED ON REVERSE S L ,;,,. 0 T 2 �� `t. i • 28. GEOLOGIC MARKERS (List all formations and markers encountered): 29. FORMATION TESTS NAME MD ND Well tested? ❑ Yes El No If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if Permafrost - Top needed, and submit detailed test information per 20 AAC 25.071. Permafrost - Base Base Permafrost 1,460 1,460 Ugnu 1,955 1,955 Base Lwr Ugnu B Sand 2,225 2,225 Schrader Bluff A 2,616 2,616 WS Al 3,136 3,136 Schrader Bluff B 3,348 3,348 Schrader Bluff C Marker 3,985 3,985 Colville Sand Equiv 4,204 4,204 30. List of Attachments: Directional Survey, Schematic, Daily operational summary, Mud Weight vs. ND 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Walter Quay 263 -7812 Printed Name: Timothy C. Brandenburg Title: Drilling Manager Signature: G Phone: (907) 276 -7600 Date: 'J ^ /fJv INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10 -404 well sundry report when the downhole well design is changed. Item la: Classification of Service wells: Gas Injection, Water Injection, Water - Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevations in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50- 029 - 20123- 00 -00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut -in, or Other (explain). Item 27: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 29: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 2/2007 Chevron • • Chevron - Alaska Daily Operations Summary Well Name Legal Well Name Lease Surface UWI ChevNo Original RKB (ft) Water Depth (ft) BLUEBUCK 6 -7 -9 BLUEBUCK 6 -7 -9 5022320024 LL6391 421.00 Primary Job Type Job Category Objective Actual Start Date Actual End Date Drill and Abandon Drill 2/9/2009 3/22/2009 Primary Wellbore Affected Wellbore UWI Well Permit Number BLUEBUCK 6 -7 -9 5022320024 -00 2082010 y . . . :c: ..�. ... .,'s.::.....f § {.V r'^, ,.... K.$c •.'*i. , x""•`33 :^;'!sT?ir,. '.'{t:. ,.K,.. 2/12/2009 00:00 - 2/13/2009 00:00 Operations Summary Rigging up. 213/2009 00:00 - 2/14/2009 00:00 Operations Summary Rigging up. 2/14/2009 00:00 - 2/15/2009 00:00 Operations Summary Continue R/U mud tanks, T/D rail and guide lines on derrick. Began setting pipe barn in place. AOGCC Notification of Diverter /BOPE function test and upcomming spud. Contacted back by Check Scheve to coordinate timing. 2/16/2009 00 :00.2/16/2009 00:00 Operations Summary Finished R/U Rig and loading D.P. in pipe barn 2/1612009 00:00 - 2/1712009 00:00 Operations Summary Continued R/U Divertor system, mixing spud mud and repairing top drive. 2/17/2009 00:00 - 2/1812009 00:00 Operations Summary Completing Rig Up. PU DP & BHA. Diverter function tested, witness waived by Lou Grimaldi of AOGCC. 2/16/2009 00:00 - 2/19/2009 00:00 Operations Summary RU Completed. Clean out conductor and drill) to 308'. POOH and MU remaining BHA. 2/19/2009 00:00 - 2/20/2009 00:00 Operations Summary Drill to 1117' short trip to 250'. Drill to 1824' 2/20/2009 00:00 - 2/2112009 00:00 Operations Summary TD surface hole at 1930'. Wiper trip to 1117'. CCM for casing. TOOH. LD BHA. Pull WB, DR hanger. RU Casing equipment. Start running 9 5/8" 40# L= $0 casing. 2/21/2009 00:00 - 2/22/2009 00:00 Operations Summary Finish running casing, wash to bottom and land at 1,916'. CCM for cement. Run inner string. CCM and rig up cementers. Cement CSG with 250 bbl 10.0 ppg Type L cement lead and 54 bbl 15.8ppg type G cement tail. Estimate 100 Bbls Good Cement Returned. Pull Landing Joint, circ drill pipe clean. TOOH w/ inner string. Run pack -off and test. Start change BOP over for main hole. Start cleaning pits. AOGCC notified of upcoming BOP test. 2/22/2009 00:00 - 2/23/2009 00:00 Operations Summary Finish changing stack over from Diverter to BOP. Test BOP 250psi low/ 2500 psi high. BOP test witnessed by Lou Grimaldi w/ AOGCC. Test casing to 2,000psi for 30 min. Install wear bushing. PU 8 1/2" hole section 131:1A. 2/2312009 00:00 - 2/24/2009 00:00 Operations Summary Finish TIH, Drill shoe track and new hole to 1950', CCM, LOT to 14.8 PPG EMW, Swap mud in hole over to 9.0ppg 6% KCI PHPA mud. Drilled from 1,950' to 3,437'. 2/24/2009 00:00 - 2/25/2009 00:00 Operations Summary Drilled from 3437' towel) TD 4500'. Short Trip to surface shoe at 1916'. TIH to TD Circulate and condition hole for logging. POOH. 2/25/2009 00:00 - 2/26/2009 00:00 Operations Summary TOOH LD BHA. RU & Run Baker Atlas Grand Slam Log. Run MREX Log 2/26/2009 00:00 - 2/27/2009 00:00 Operations Summary Complete Logging MREX. Run RCORs. Run VSP Checkshot. PU RCI Pressure sampling tools. 2/27/2009 00:00 - 2/28/2009 00:00 Operations Summary Run RCI pressure sampliing run. RU RCI on drill pipe for sampling. 2/28/2009 00:00 - 3/1/2009 00:00 Operations Summary ': K . '..3 '`a Y . • DPC RCI fluid sampling. 311/2009 00:00 - 312/2009 00:00 Operations Summary DPC RCI fluid sampling Chevron • • 1 %. Chevron - Alaska Daily Operations Summary Well Name Legal Well Name Lease Surface UWI ChevNo Original RKB (ft) Water Depth (ft) BLUEBUCK 6 -7 -9 BLUEBUCK 6 -7 -9 5022320024 LL6391 421.00 i19 3/2/2009 00:00 - 3/3/2009 00:00 Operations Summary DPC RCI fluid sampling. Contacted Jeff Jones of AOGCC for upcoming BOP test. 3/3/2009 00:00.3/4/2009 00:00 Operations Summary DPC RCI fluid sampling. Start TOOH with DPC RCI. Jeff Jones of AOGCC waived witness of upcoming BOP test 3/4/2009 00:00 - 3/5/2009 00:00 Operations Summary Complete TOOH & LD logging tools. Test BOP 250 psi low /2500 psi high. Jeff Jones of AOGCC waived witness of BOP test 3/512009 00:00.3/6/2009 00:00 Operations Summary Complete BOP Test. Slip & Cut Drilling Line. TIH with bit/BHA for wiper trip. MU and TIH with DPC straddle packers RCI. 3/6/2009 00:00 - 3/7/2009 00:00 Operations Summary TIH & Set straddle packers for sample point. RCI fluid sampling 3/7/2009 00:00 - 3/8/2009 00:00 Operations Summary Complete RCI sampling TOOH & LD logging tools. RU to run liner. 3/8/2009 00:00 - 3/9/2009 00:00 Operations Summary Run 4 -1/2" liner for P&A. Cement with 417 sx (208 bbls) of 11.5 ppg Econlite Cement. Lost —50 Bbls during cementing. Set liner hanger and packer. TOL 1764'. Shoe 4458' 3/9/2009 00:00 - 3/10/2009 00:00 Operations Summary Wait on Weather. Test liner top & casing to 2000 psi for 30 minutes. Jeff Jones of AOGCC was notified & waived witness of test. LD drill pipe. 3/10/2009 00:00 - 3/11/2009 00:00 Operations Summary Complete LD DP. Set CIBP @ 268'. Pump 16 bbls of 15.6 ppg C PF cement surface plug. Start RD. Wait on Weather 3111/2009 00:00 - 3/12/2009 00:00 Operations Summary Finished N/D BOP's and removing F /cellar. Top off cement in surface casing w/ 6 sxsx of Class C Permafrost cement. 3/1212009 00:00 - 3/13/2009 00:00 Operations Summary Continue rigging down mud pits, pickling mud pumps, RD Torque Rail and rig floor. 3/13/2009 00:00.3114/2009 00:00 Operations Summary Continue R/D rig equipment and Cut off well head at abandonment height. Witness waived by AOGCC Lou Grimaldi. 3/14/2009 00:00 - 3/16/2009 00:00 Operations Summary Continue Rigging Down for cold stack out. Remove wind walls. Scope down Derrick and lay over. 3/1512009 00:00 - 3/16/2009 00:00 Operations Summary Coninue rigging down. Start unstacking and loading out rig. 3/16/2009 00:00 - 3/17/2009 00:00 Operations Summary Continue unstacking and loading out rig to FBSA. 3/17/2009 00:00 - 3/18/2009 00:00 Operations Summary Continue loading out rig to Franklin Bluffs Staging Area. 3/18/2009 00:00 - 3/19/2009 00:00 Operations Summary Finish loading out rig components and miscellaneous materials. Load out Sleigh Camp. Pull Cellar, take pictures, fill in with soil from original excavation. 3/19/2009 00:00.3/20/2009 00:00 Operations Summary Finish loading out miscellaneous materials and equipment. 312012009 00:00 - 3/21/2009 00:00 Operations Summary Load out 15 loads from FBSA to Deadhorse. Pack up camp and prepare for shut down. 3/21/2009 00:00 - 3/2212009 00:00 Operations Summary Shut down Galena camp and prep for load out. Continue loading out rig from Franklin Bluffs staging area to Deadhorse. 0 0 Bluebuck 6 -7 -9 DIR / LWD FORM DEPTH- RKB(21') Est. EI. GL 400' HOLE CASING MUD INFO MWD MD I ND TVD - SS DEPTH -RKB 21 SIZE SPECS Cement Info INFO 0' 0' 400' 16" 85 lb/ft, L -80 16" Conductor 185 185' 215 N/A N/A a Surface Csa Surface Plug CIBP 268' 9 -5/8" 16 Bbls, 95 sx 2 � 40.0 Ibs /ft Type C @ 15.8 ppg L - 80, BTC - M 0.95 ft3 /sx ki v ID. = 8.835" Int. Yield 5750 psi Collapse 3090 psi Base PF 1,455' Top of Liner Hanger 1,764' 1,764' - 1,343' >i 4 -1 /2" Landing Collar 1 844 1844 9 -5/8 Casing 1,916' 1,916' -1,495 :::;;:;::;:;:;;:;: :::;::;;:;:;.;;;;;::;;:;;:;:;:: 12 -1/4" 1::::::::::::::::::::ii:::::::::::::::: .,;:f� } ii::.: Casing Lead Slurry 4 -1 /2" 208 Bbls, 417 sx 12.6 #/ft 11.5 ppg L -80, IBT ID. = 3.958" 2.8 ft3 /sx Int. Yield 8430psi Collapse 7500 psi 4 -1/2" Liner 4,458' 4,458' - 4,037' TD 4,500' 4,500' - 4,079' ...... ......,........ 8 -1/2" 4/13/2009 Chevron % . Schlumberger 1 %0 Bluebuck 6 -7 -9 Survey Report Report Date: February 24, 2009 Survey I DLS Computation Method: Minimum Curvature / Lubinski Client: Chevron Vertical Section Azimuth: 43.440° Field: White Hills Chevron Vertical Section Origin: N 0.000 ft, E 0.000 ft Structure 1 Slot: Bluebuck 6 -7 -9 / Blue Buck TVD Reference Datum: Rotary Table Well: Bluebuck 6 -7 -9 TVD Reference Elevation: 421.00 ft relative to MSL Borehole: Blue Buck 6 -7 -9 Sea Bed 1 Ground Level Elevation: 400.00 ft relative to MSL UWIIAPI#: 502232002400 Magnetic Declination: 22.094° Survey Name 1 Date: Bluebuck 6 -7 -9 / February 24, 2009 Total Field Strength: 57623.671 nT Tort I AHD 1 DDI I ERD ratio: 6.330° / 30.56 ft / 2.287 / 0.007 Magnetic Dip: 80.563° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: February 20, 2009 Location Let/Long: N 69.99204331, W 149.99088510 Magnetic Declination Model: BGGM 2008 North Reference: True North Location Grid NIE YIX: N 5846575.750 ftUS, E 501142.320 ftUS Grid Convergence Angle: +0.00856478° Total Corr Mag North •> True North: +22.094° Grid Scale Factor. 0.99990000 Local Coordinates Referenced To: Well Head Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure (ft ) (deg) (deg) (ft) (ft) (ft) (ft ) (ft ) (ft) (ft ) (deg /100ft ) (ftUS) (ftUS) RTE 0.00 0.00 0.00 - 421.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 MWD - Standard 357.84 0.87 35.14 -63.17 357.83 2.69 2.72 2.72 2.22 1.56 0.24 5846577.97 501143.88 N 69.99204938 W 149.99087262 480.14 0.71 31.27 59.11 480.11 4.35 4.40 4.40 3.63 2.49 0.14 5846579.38 501144.81 N 69.99205322 W 149.99086522 541.74 0.60 36.32 120.71 541.71 5.04 5.11 5.10 4.21 2.88 0.20 5846579.96 501145.20 N 69.99205483 W 149.99086211 662.94 0.49 21.22 241.91 662.91 6.15 6.25 6.24 5.21 3.44 0.15 5846580.96 501145.76 N 69.99205754 W 149.99085762 786.14 0.43 40.02 365.10 786.10 7.10 7.23 7.22 6.05 3.93 0.13 5846581.80 501146.25 N 69.99205985 W 149.99085372 915.74 0.22 33.73 494.70 915.70 7.83 7.97 7.95 6.63 4.38 0.16 5846582.38 501146.70 N 69.99206143 W 149.99085013 1043.82 0.34 324.43 622.78 1043.78 8.15 8.52 8.34 7.15 4.30 0.26 5846582.90 501146.62 N 69.99206284 W 149.99085080 1172.12 0.49 286.43 751.07 1172.07 7.97 9.42 8.40 7.61 3.55 0.24 5846583.36 501145.87 N 69.99206411 W 149.99085677 1300.77 0.14 250.58 879.72 1300.72 7.58 10.11 8.23 7.72 2.87 0.30 5846583.46 501145.19 N 69.99206439 W 149.99086216 • 1428.10 0.21 139.33 1007.05 1428.05 7.42 10.40 8.02 7.49 2.88 0.23 5846583.24 501145.20 N 69.99206376 W 149.99086212 1558.70 0.52 127.62 1137.65 1558.65 7.45 11.23 7.78 6.94 3.51 0.24 5846582.69 501145.82 N 69.99206228 W 149.99085713 1686.50 0.36 106.70 1265.45 1686.45 7.69 12.20 7.80 6.47 4.35 0.18 5846582.22 501146.67 N 69.99206100 W 149.99085039 1816.44 0.24 98.75 1395.38 1816.38 8.03 12.88 8.06 6.32 5.01 0.10 5846582.07 501147.33 N 69.99206056 W 149.99084513 1857.44 0.24 89.25 1436.38 1857.38 8.14 13.05 8.16 6.30 5.18 0.10 5846582.05 501147.50 N 69.99206053 W 149.99084377 9 -5/8" (a) 1930'md 1947.38 0.57 56.35 1526.32 1947.32 8.71 13.67 8.71 6.55 5.74 0.43 5846582.30 501148.06 N 69.99206122 W 149.99083929 2140.73 0.46 59.02 1719.66 2140.66 10.39 15.41 10.39 7.49 7.21 0.06 5846583.24 501149.53 N 69.99206376 W 149.99082759 2334.03 0.36 59.52 1912.96 2333.96 11.72 16.79 11.73 8.19 8.40 0.05 5846583.94 501150.71 N 69.99206570 W 149.99081811 2461.03 0.39 58.19 2039.96 2460.96 12.52 17.62 12.54 8.62 9.11 0.02 5846584.37 501151.42 N 69.99206687 W 149.99081244 2591.33 0.38 47.54 2170.25 2591.25 13.38 18.49 13.41 9.15 9.80 0.06 5846584.90 501152.12 N 69.99206831 W 149.99080689 2653.43 0.44 54.80 2232.35 2653.35 13.82 18.94 13.85 9.43 10.15 0.13 5846585.18 501152.47 N 69.99206906 W 149.99080412 2848.63 0.20 62.49 2427.55 2848.55 14.88 20.03 14.92 10.02 11.06 0.12 5846585.77 501153.38 N 69.99207067 W 149.99079682 3042.03 0.40 39.98 2620.95 3041.95 15.87 21.03 15.92 10.69 11.80 0.12 5846586.44 501154.11 N 69.99207251 W 149.99079097 3169.43 0.42 49.79 2748.34 3169.34 16.78 21.94 16.83 11.33 12.44 0.06 5846587.08 501154.76 N 69.99207427 W 149.99078585 SurveyEditor Ver SP 2.1 Bld( doc40x_100) Blue Buck \Bluebuck 6 -7 -9 \Blue Buck 6 -7 -9 \Bluebuck 6 -7 -9 Generated 3/19/2009 9:31 AM Page 1 of 2 Comments Measured Inclination Azimuth Sub -Sea WC TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure (ft ) (deg) (deg) (ft ) (ft ) (ft) (ft ) (ft) (ft) (ft ) (deg1100ft ) (ftUS) (ftUS) 3298.83 0.37 58.25 2877.74 3298.74 17.66 22.83 17.71 11.86 13.16 0.06 5846587.61 501155.47 N 69.99207570 W 149.99078012 3428.03 0.48 55.19 3006.94 3427.94 18.59 23.78 18.66 12.38 13.96 0.09 5846588.14 501156.27 N 69.99207715 W 149.99077375 3556.53 0.34 64.14 3135.43 3556.43 19.47 24.70 19.56 12.86 14.74 0.12 5846588.61 501157.06 N 69.99207844 W 149.99076749 3685.63 0.45 52.45 3264.53 3685.53 20.33 25.59 20.44 13.33 15.49 0.11 5846589.09 501157.80 N 69.99207974 W 149.99076153 3813.63 0.35 46.32 3392.53 3813.53 21.22 26.48 21.33 13.91 16.17 0.08 5846589.66 501158.48 N 69.99208132 W 149.99075609 3942.53 0.27 45.67 3521.42 3942.42 21.91 27.18 22.03 14.40 16.67 0.06 5846590.15 501158.99 N 69.99208264 W 149.99075209 4071.13 0.29 22.86 3650.02 4071.02 22.52 27.80 22.62 14.91 17.01 0.09 5846590.66 501159.33 N 69.99208404 W 149.99074935 4135.23 0.31 19.20 3714.12 4135.12 22.83 28.14 22.92 15.22 17.13 0.04 5846590.97 501159.45 N 69.99208489 W 149.99074839 4199.23 0.34 18.69 3778.12 4199.12 23.16 28.50 23.23 15.56 17.25 0.05 5846591.31 501159.57 N 69.99208583 W 149.99074745 4328.83 0.37 337.26 3907.72 4328.72 23.68 29.27 23.72 16.31 17.21 0.19 5846592.06 501159.53 N 69.99208788 W 149.99074776 •t Survey 4393.13 0.45 316.28 3972.02 4393.02 23.78 29.72 23.79 16.69 16.96 0.26 5846592.44 501159.27 N 69.99208890 W 149.99074979 TD 4500.00 0.45 316.28 4078.88 4499.88 23.82 30.56 23.82 17.29 16.38 0.00 5846593.04 501158.69 N 69.99209056 W 149.99075442 Survey Type: Definitive Survey NOTES: MWD - ( Standard -- Measurement While Drilling with no (or no known) special corrections. The model allows for the fact that axial interference may marginally exceed the upper limit specified when the well is near horizontal east/west. ) Legal Description: Northing (Y) rftUS] Easting (X) rftUS] Surface : 3302 FSL 3318 FEL S6 T7N R9E UM 5846575.75 501142.32 BHL : 3320 FSL 3301 FEL S6 T7N R9E UM 5846593.04 501158.69 • SurveyEditor Ver SP 2.1 Bld( doc40x_100) Blue Buck \Bluebuck 6 -7 -9 \Blue Buck 6 -7 -9 \Bluebuck 6 -7 -9 Generated 3/19/2009 9:31 AM Page 2 of 2 Bluebuck 6 -7 -9 MW vs. TVD Mud Weight (ppg) 8.5 8.6 8.7 8.8 8.9 9 9.1 9.2 9.3 9.4 9.5 0 500 • 1000 1500 • 2000 p Water Based Mud 2500 —0— KCI /Polymer Mud t CD 3000 3500 • 4000 4500 I • 5000 • 0 REV DA IL BY CK APP DESCRIPTION REV DA TI- BY CK APP DESCRIPTION 1 2/17/09 DMP KWA Add Pad buidings and Rig 1. L — r . OF q� . 6' ii i r -,,,- - - i ---- H •. * *: , 1 I BLUE BUCK 49 T „ �� 6 -7 -9 5 j fi ". 6 : Kenneth W. Aye i I I • i ii $ ' IS -8535 .'4, jf'IIA'O FESSION.� .... - I 7 I - 8 I HEREBY CERTIFY THAT I AM A PROPERLY REGISTERED AND VICINITY MAP UCENSED TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA, AND THAT THIS DRAWING REPRESENTS A SURVEY 1" = APPROX. 1/2 MILE MADE BY ME, OR UNDER MY DIRECT SUPERVISION. USGS QUAD. SAGAVANIRKTOK D -5 / L BLUE BUCK 6 -7 -9 LOCATED WITHIN PROTRACTED SEC. � --- .... UM AT R 9 E, MERIDIAN. X 38 \ 1979' F.N.L, 1586' F.W.L ASP ZONE 4 0— ' TOP E NAD 27 COORDINATES 'ICE PA LAT = N 69' 59' 31.3337" N 10 ` 1 \ LONG = W 149' 59' 27.0478" .119.9. , 0,0 i Y = 5,846,573.49' N . `a / X = 501,147.14' s 1oF,u ■ \ co"-- ass, „ NOTES: \ 1. COORDINATES SHOWN ARE NAD Nk6d BLUE BU « • 27 ALASKA STATE PLANE ZONE 4. 6 -7 -9 r , \ \ 2. GEOGRAPHIC COORDINATES ARE NAD 27. r \ � \�� 3. ALL DISTANCES ARE GROUND. d' 4. PAD CONFIGURATION PER OWNER \ '3 ) SUPPLIED DATA. STRUCTURES NOT AS BUILT. 1 54 1 f in � � s 65 • w ' o 7 LEGEND � 1 / -0-AS BUILT CONDUCTOR LOCATION LOUNSBURY BLUE BUCK 6 -7 -9 do �OCIATES, INC. SCALE: 1110111111111 PLUINE118 1 " = 200' Ii 107 -"`-s a1 CHEVRON BLUE BUCK 6 -7 -9 WELL CONDUCTOR AS BUILT UNION OIL OF CALIFORNIA CADD FILE NO. DRAWING NO: SHEET: REV: BLUE BUCK ab 10 FEBRUARY 2009 2009 WINTER FIFI_D DATA /BLUL_I3UCK ab.DWG l 1 OF 1 I 1 4 z • rt 6, r • l • , le .\ '• l _ a yy } J r Q 4,• "• I ', ' �. , w ' �, �1 y� ti � it a z s c , • . «. , Arc > 0 ,1, } a ' ''q ,. ` s.' J � r "t J,4 yam, .?� w ! r '� , M � { • ,. o-. ti } �' , " - a . • ` ,r - . ,`+�' -�. , _ I l k a ' - I . ;`f/ . • rt ' ., "t cr . S k . 5. P. W { • . if M .. ,,,,... �r r • :t„, • ■ • 4 4 • 4 • N 4 • a • o % • SI `- ) it • f 1 . t . ' 1 , ,j •• . • ,. f i * . a *' liw ►.. ,` * ti _ I nW"s 7: ti "* ' k • r I. '" 'A s ..„, , # ,,.....4. . 1 . 14 4,„t1,41.0,atie,1,tiolk . .,.. . ,_ # I , . 4 ir k . it w ;t r I r' 416 IF x' .l r � 1 -Olt , i 4r ' • ``" , w i tip , 0 j A f c ,fi f .� 1$''t Tr �y na • i 9 AF - . 1 R N ) 4 t 410 if A .► . 4Ir % c ' ' 3 t - '' # r . 004 a .. i t II It , s I _ • r . , ,,....„,, 4., . .., t n't e ri r s f 0" ; _ - IP I „,, x I , s . „. , / 4 fprit irk t y r j 4 I f SIR i+ ii u , i f . $ '" ' • ,L AIM � � . it 1. „ si b } I • ... litif isiw Of 1 i 7 , 4 . , b *it.) . 4 4 / 1 0 4. 0"allr . ..4 1 . t" ' a' .0. „ 44 i al J `.,. M . ,a3 ! y ;1 CHEVRON Chevron U.S.A. inc. No, 2009 -04/09 REQUEST DATE P.O. Box 36366 04/09/2009 Houston, TX 77236 ORIGINAL 11111 S. Wilcrest Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA s H AOGCC From: David Buthman Christina Mahnken P 333 W 7 Ave Ste 100 T Anchorage, Alaska 99501 Sent by: Norma Blake o United State America Shipped Via: FedEx Bluebuck 6 -7 -9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS (1) - EPOCH Bluebuck 6.7 -9 North Slope - White Hills EPOCH Re Re Prints Final EPOCH Re Prints Final Well Report Prints Final Well Report Mudlogging Data Well Report Mudlogging Mudlogging Data Data (1) — Vsfusion Bluebuck 6 -7.9 North Slope - White Hills VSfusion Velocity VSfusion — Borehole Seismic Report — Velocity Survey Report Velocity Survey Report Survey Report DATE SHIPPED VIA CHEVRON TRANS. NO TRACKING NO. 04-09 -09 FedEx CH- 200900409 - 04092009 885629510007373 PLEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY OR FAXING TO (284561-3592 Date • • a /Qi ')nno 1 _ rtusm Chevron U.S. • NO, 2009-03/24 P.O. Box 363 DATE Houston, TX 77236 03/24/2009 11111 S. Wilcrest ORIGINAL Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA S H AOGCC From: David Buthman Christina Mahnken P 333 W 7 Ave Ste 100 T Anchorage, Alaska 99501 Sent by: Norma Blake o United State America Shipped Via: FedEx Bluebuck 6 -7.9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 (CD) Bluebuck 6 -7.9 - Well Log Data — Alaska, White Hills Well Data Schlumberger DrIling Mech dig data & PDS Logs, LWD Form CD Eval dig data & PDS Logs, Direct Srvy Data 10 Log Prints — Bluebuck 6 -7 -9 Alaska, White Hills Well Data Schlumberger 1). BestDT Processed SonicVision — Run #1 Log Prints (2 Copies Each) 2). BestDT Processed SonicVision — Run #2 3). SonicVision — MD Recd Mode FLD Print Scale: 1:600 4). SonicVision — MD Recd Mode FLD Print Scale: 1:240 5). VISION Service — MD Recd Mode Fld Print Scale: 1:600 6). VISION Service — MD Recd Mode Ad Print Scale: 1:240 7). Time Based DrIg Mech — DrIg and Process Mech (Time) Log RT Fld Print Surface and Downhole Data — Run #1 (30`1 —a0 8). Time Based DrIg Mech — DrIg and Process �' Mech (Time) Log RT Fld Print Surface and I � Downhole Data — Run #2 9). Depth Based DrIg Mech — DrIg and Process Mech (Depth) Log Recrd Mode Print Surface and Downhole Data 10). Schlumberger EcoView Log 1 Paper Prints Drilling and Measurements Field Support Alaska, White Hills Paper Prints — DATE SHIPPED VIA CHEVRON TRANS. NO TRACKING # 0312412009 FedEx CH- 20090324 a LEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY OR FAXING TO (281) 551 -3592 Date - /1A f'lnnn 1 1 CHEVRON Chevron U.S.A. Ir REQUEST DATE P.O. Box 36366 • NO 2009 -03/23 03/23/2009 Houston, TX 77236 11111 S. Wilcrest ORIGINAL Houston, TX 77099 TRANSMITTAL OF CONFIDENTIAL DATA s H AOGCC From: David Buthman Christina Mahnken P 333 W 7 Ave Ste 100 Anchorage, Alaska 99501 Sent by: Norma Blake 0 United State America Shipped Via: FedEx Bluebuck 6 -7 -9 API: 50-223-20024-00 QUANTITY DESCRIPTION AREA Survey Product REMARKS 1 EPOCH Final Bluebuck 6-7-9 White Hills EPOCH Final Well Report EPOCH Final Well Report Mudlogging Data Well Report Mudlogging Mudlogging Data Data DATE SHIPPED VIA CHEVRON TRANS. NO TRACK # 03/23/2009 FedEx CH- 20090323 -32309 8856295100062 46 PLEASE ACKNOWLEDGE RECEIPT OF MATERIAL BY SIGNING AND RETURNING COPY pRYA - _ T.08) 561 -3592 Date • o SARAH PALIN, GOVERNOR ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 FAX (907) 276 -7542 Tim Brandenburg Drilling Manager Unocal PO Box 19647 Anchorage AK 99519 Re: Exploration, Bluebuck 6 -7 -9 Sundry Number: 309 -076 Dear Mr. Brandenburg: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for rehearing. A request for rehearing is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. A person may not appeal a Commission decision to Superior Court unless rehearing has been requested. Sincerely, Daniel T. Seamount, Jr. Chair i n DAZED this 2' day of March, 2009 Encl. 90/5--30 r RECEIVED $"LJc . ( 0 c' STATE OF ALASKA ©\ ALAS`F�A OIL AND GAS CONSERVATION COMMISSION y _ FEB 2 6 2009 s e , a 3 APPLICATION FOR SUNDRY APPROVAL - 7)'N 20 AAC 25.280 Alaska Oil & Gas Cons. Commission 1. Type of Request: Abandon 1511 Suspend ❑ Operational shutdown ❑ Perforate ❑ Waiver n horage Other ❑ Alter casing ❑ Repair well ❑ Plug Perforations ❑ Stimulate ❑ Time Extension ❑ Change approved program ❑ Pull Tubing ❑ Perforate New Pool ❑ Re -enter Suspended Well ❑ 2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number: Union Oil Company of California Development ❑ Exploratory 0 208 -201 3. Address: Stratigraphic ❑ Service ❑ 6. API Number: P.O. Box 19647, Anchorage, AK 99519 50- 223 - 20024 -00 7. If perforating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Number: property line where ownership or landownership changes: Spacing Exception Required? Yes ❑ No 151 Bluebuck 6 -7 -9 9. Property Designation: 10. KB Elevation (ft): 11. Field /Pool(s): ADL 389182 421 None 12. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth ND (ft): Effective Depth MD (ft): Effective Depth ND (ft): Plugs (measured): Junk (measured): 4500 4500 4500 4500 Casing Length Size MD ND Burst Collapse Structural Conductor 178 16 178 178 Surface 1916 9 -5/8" 1916 1916 5750 3090 Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth ND (ft): Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type: Packers and SSSV MD (ft): 13. Attachments: Description Summary of Proposal 19 14. Well Class after proposed work: Detailed Operations Program 0 BOP Sketch ❑ Exploratory 0 Development ❑ Service ❑ 15. Estimated Date for 2/26/2009 16. Well Status after proposed work: Commencing Operations: Oil ❑ Gas ❑ Plugged ❑ Abandoned 0 17. Verbal Approval: Date: WAG ❑ GINJ ❑ WINJ ❑ WDSPL ❑ Commission Representative: t) , Xc.+. � - .. � r eVA oz: 18. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Walter Quay 263 -7812 Printed Name ,Tim Brandenburg Title Drilling Manager • Signature p r Phone 263 -7657 Date February 26, 2009 COMMISSION USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number: `/)q — 071p Plug Integrity al BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance K. Other: T \ O f 4 ix S - C_1" o \C `>; i ��ZhS� o r U Y �� r �`� Subsequent Form Required: LA ','1 BFL i APPROVED BY Approved by: i� / _ ,., l C MMISSIONER THE COMMISSION Date: 5 I 2 I. IF Form 10-403 Revised 06/2006 , 014-- 2 1 21 (4 Jbmit in Duplicate 40 Bluebuck Proposed Abandonment Procedure 1. M/U and run 4 - production liner on 4" drill pipe as follows: • 4 - float shoe • +2650' of 4 -1/2" liner • 4 -1/2" IBT liner type I landing collar • 2 joints 4 -1/2" IBT liner. • 9 5/8" x 7" liner hanger Liner Hanger to set -150' above the 9 -5/8" shoe. • 9 5/8" x 7" ZXP liner top packer • 4" drill pipe to surface 2. Cement with 279 Bbls, 477 Sx of 11. ppg Econlite cement. • Basis for cement volume: • Cement from Landing Collar (80' below liner hanger) in 4 -1/2" • Cement from TD to 9 -5/8" Shoe +40% OH Excess • Cement from 9 -5/8" shoe to liner hanger ( -150') • 100' of cement above liner top. 3. Set liner hanger; 4. Set the liner top packer, Pressure Test casing to 2000 psi. (Notify AOGCC 24 hrs prior to this test) 5. POH and L/D DP & setting tool. 6. Set Bridge Plug at -250'. 7. Cement to surface with -15 Bbls, 89 sx of 15.6 ppg Type C Permafrost Cement 8. ND - Release Rig 9. Complete Surface abandonment with Surface Casing and Conductor cut and placement Well abandonment marker. 0 0 Bluebuck 6 -7 -9 DIR / LWD FORM DEPTH- RKB(21') Est. El. GL 400' HOLE CASING MUD INFO MWD MD I TVD TVD - SS DEPTH -RKB 21 SIZE SPECS Cement Info INFO 0' 0' 400' I 16" 85 lb/ft, L -80 16" Conductor 185 185 215 ::: ;:;:: :1 „ N/A N/A Surface Csq Surface Plug 9-5/8" 15 Bbls, 90 sx 40.0 Ibs /ft Type C @ 15.6 ppg L - 80, BTC - 1.1 ft3 /sx ID. = 8.835" Int. Yield 5750 psi Collapse 3090 psi Base PF 1,455' ' Top of Tail Cement 000 .% 00 .• ∎• • • 00' p :•O Top of Liner ❖ :•, ..or Hanger 1,766' 1,766' - 1,345' ::;: :+ 4-1/2" Landing Collar 1,846' 1846 ow . two I ....; ..; ....; . ... ... 9 -5/8" Casing 1,916' 1,916' - 1,495' :;::::::::::::::::V+ , ;:: 12 -1/4" $$$$$$ki;M: •••••• ....A •�••�' q Wellb oreStabilit • •��•�•�• � r •∎•�••�� Inter. Casing Lead Slurry Y :::::::::%.*: ♦ • , • • . • • � , • • • • ♦ Lost Circulation ,,.y,.,,, 4 1 /2" 238 Bbls, 477 sx �,•••• :• :•.•.;•0,00000' Hole Cleaning �;pii•� r• 12.6 #/ft 11.5 PP9 O••••O1�A0000 OOOOi •• •i •00•;00 Torque & Drag •••••• •• •� ID.= 3.958" 2.8 ft3 /sx •00000• \\\, 0 ∎•00' Int. Yield 8430psi ••••••: r•••• . ❖. ❖.00 �0. ♦ Casing Sections • 0∎∎∎∎ 0.00 Collapse g 000. \.4 % 1 1'44 \1• •• •000•0 • ∎ ' 7500 psi • .• ; •O;•;•4 ; •O∎∎0 ∎O 0•∎0∎O� 000•∎ ••0' C• ∎∎ ∎•0 • 00∎∎.04 •∎••• •0000;0 00.0.0 $$$$$$ ,•:•:•:•:•:' RCI Sampling n , : ❖ :• :00•i ,•iii :i' 4-1/2 Liner 4,490' 4,490 - 4,069 .;.;.;. %.; : ❖:❖ : ❖� '❖ :❖:•:' TD 4, 500 4, 500' -4, 079 ; :; :; :; :; 5: ; ; , :, :; : ; : ; ; 8-1/2" 85° F 2/26/2009 Page 1 of 1 Maunder, Thomas E (DOA) From: Maunder, Thomas E (DOA) Sent: Friday, February 27, 2009 4:13 PM To: 'Walter Quay (Chevron)' Cc: DOA AOGCC Prudhoe Bay Subject: Bluebuck 6 -9 -7 (208 -201) Sundry (309 -076) Walter, I have apprised Commissioner Seamount of your intent to P &A and he has given his oral approval for you to proceed as planned. Have your onsite Supervisor notify the Inspectors of the opportunity to witness the casing pressure test after cementing and the cutoff. The pressure test should be charted and photos obtained of the cutoff and plate. I have sent a copy of the program to the Inspectors. Call or message with any questions. Tom Maunder, PE AOGCC 2/27/2009 • Page 1 of 1 Maunder, Thomas E (DOA) From: Regg, James B (DOA) Sent: Tuesday, March 10, 2009 8:32 AM To: Maunder, Thomas E (DOA) Subject: FW: 9.675" X 4.5" Liner Lapp Test Blue Buck 6 -7 -9 Attachments: Liner lap test 3 -9 -09 bluebuck.doc Jim Regg AOGCC 333 W.7th Avenue, Suite 100 Anchorage, AK 99501 907 -793 -1236 From: Smith, Matthew [mailto:Matthew.Smith @nabors.com] Sent: Monday, March 09, 2009 9:33 PM To: Regg, James B (DOA); DOA AOGCC Prudhoe Bay; Fleckenstein, Robert J (DOA) Cc: frhu @chevron.com; hammodj @chevron.com; dckm @chevron.com Subject: 9.675" X 4.5" Liner Lapp Test Blue Buck 6 -7 -9 This is being sent for me by Nabors as Chevrons computer system is down. It was a successful test any questions please contact Chevron DSM at 771 -7451. THANK YOU Floyd R Hurt Matthew Smith Rig 106 Toolpusher (907)771 -7454 Rig (307)851 -9805 Cell Farming looks mighty easy when your plow is a pencil and you're a thousand miles from the corn field. NABORS EMAIL NOTICE - This transmission may be strictly confidential. If you are not the intended recipient of this message, you may not disclose, print, copy, or disseminate this information. If you have received this in error, please reply and notify the sender (only) and delete the message. Unauthorized interception of this e-mail is a violation of federal criminal law. This communication does not reflect an intention by the sender or the sender's principal to conduct a transaction or make any agreement by electronic means. 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' 2:.,.-.,,,..:::.,-.•.:„..,,,,.,7,..,7..„-;„.• ...:•..,..4.......,+„, ,, -1, - : . 0 ....„• • ,4•••. •• ...„.-..''. • ,,...- ),..,. •• „ ' s• • - :•,L.,,.,::•"•••,,,,„•,,....,,L...„• •••••. • ; . .„ - d) ' '' :, ' .. :\II :• ;•'.'•: : •••• • •";• 2 . \ ;;•''\•';..:\;•,' . :'.\ .• • •••-••••:::',\•:-,,•••:;.;.;'-•••-: ,.7>•••~/..•-••. „,.....,•,••.•,•••,. 0 00.• . ., , ,,, ., •,. ,,-,,,,, •_•••.,,,...„, „„. ....,„......„. ...„:„,.,..._..„„ \ ,... „.....,„, 5 L nit, d „' ✓ / Q SARAH PALIN, GOVERNOR 11 ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMl►IISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 Tim Brandenburg FAX (907) 276 -7542 Drilling Manager Unocal 3800 Centerpoint Dr. Ste 100 Anchorage AK 99503 Re: Exploratory, Bluebuck 6 -7 -9 Unocal Permit No: 208 -201 Surface Location: 1979' FNL, 1581' FWL, SEC. 6, T7N, R9E, UM Bottomhole Location: 1979' FNL, 1581' FWL, SEC. 6, T7N, R9E, UM Dear Mr. Brandenburg: Enclosed is the approved application for permit to drill the above referenced exploration well. All dry ditch sample sets submitted to the Commission :rust be in no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. This permit to drill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. A weekly status report is required from the time the well is spudded until it is suspended or plugged and abandoned. The report should be a generalized synopsis of the week's activities and is exclusively for the Commission's internal use. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). Sincerely, • Daniel T. Seamount, Jr. Zh 1 Chair DATED thi day of December, 2008 cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. • +a / STATE OF ALASKA I,a, ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 20 AAC 25.005 la. Type of Work: 1 b. Current Well Class: Exploratory 0 . Development Oil ❑ 1 c. Specify if well is proposed for. Drill El . Redrill ❑ Stratigraphic Test ❑ Service ❑ Development Gas ❑ Coalbed Methane ❑ Gas Hydrates ❑ Re -entry ❑ Multiple Zone ❑ Single Zone ❑ Shale Gas ❑ 2. Operator Name: 5. Bond: Blanket Ei Single Well ❑ 11. Well Name and Number: Union Oil Company of California Bond No. 086S103515406BCM Bluebuck 6 -7 -9 3. Address: 6. Proposed Depth: 12. Field /Pool(s): 3800 Centerpoint Drive, Suite 100, Anchorage, AK 99503 MD: 5000 ` TVD: 5000 Exploration 4a. Location of Well (Governmental Section): 7. PropDesignati n: . �'� Surface: 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian • ADL ' 1 3g Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian ADNR LAS 26542 2- Feb-09 Total Depth: 9. Acres in Property: 00,5D if • pp 14. Distance to Nearest 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian . Wig _BtrProperty: 13,914 4b. Location of Well (State Base Plane Coordinates): 10. KB Elevation +/Z �M 15. Distance to Nearest Well Surface: x- 501,142. y- 5,846,576 • Zone- ASP4 (Height above GL): 21 feet l f / b Whin Pool: None 16. Deviated wells: Kickoff depth: feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: degrees Downhole: 2165 , Surface: 1022 18. Casing Program: Specifications Top - Setting Depth - Bottom Cement Quantity, c.f. or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) Augered 16 85 N -80 Weld 164 0 0 185 185 As Required to Surface 12 -1/4 9 -5/8 40 L -80 BTC 1950 0 0 1950 1950 Lead: 266 bbls(361 sx) of 10.7 ppg(4.15ft/sx) PF "L" (250% excess) Tail: 48 bbls (230 sx) of G @ 15.8 ppg (1.16 fUsx) (40% Excess) 8 -1/2 4 -1/2" 12.6 L -80 IBT -M 3200 1800 1800 5000 5000 279 bbls (561 sx) of G with Econlite 11.5 ppg (2.8 ft/sx) (40% excess) 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re -Entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effect. Depth MD (ft): Effect. Depth TVD (ft): Junk (measured): Casing Length Size Cement Volume MD TVD Conductor /Structural Surface Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): 20. Attachments: Filing Fee ❑ BOP Sketch 0 Drilling Program El Time v. Depth Plot 0 Shallow Hazard Analysis❑✓ Property Plat 0 Diverter Sketch 0 Seabed Report ❑ Drilling Fluid Program 0 20 AAC 25.050 requirements❑ 21. Verbal Approval: Commission Representative: Date 22. I hereby certify that the foregoing is true and correct. Contact Walter Quay 263 -7812 Printed Name Tim Brandenburg Title Drilling Manager Signature - y ..- .- Phone 2 63 -7657 Date 12 -Dec-08 Commission Use Only Permit to Drill � //�� API Number: Permit App v See cover letter for other Number: `Div / I 56- ,Z, - 2.46Z `r' ^G ( Date: p • • Or requirements. Conditions of approval : If box is checked, well may not be used to explore for, test, or produce co ed methane, gas hydrates, or gas contained ins s: Other: 4-7-1-1 Samples req'd: Yes[ No ❑ Mud log req'd: N Soo c,••=5' fit`. /0"....,,,A0.-S\ 0 r,. � i measures: YeMNon Directional svy req'd: Ds o , � ��`" 7 rnCl /rut darve. yy kcd- rE. 47 1)'` r�kE r i0 1-' 1 .o \ 4 - csk c- 0 �j � cc ao ARc.aS.rY'sS(,1t, ... • re•a$ i APPROVED BY THE COMMISSION DAT t- , COMMISSIONER A 124 ` Form 10-401 Revised 12/2005 E t . n A Submit in Duplicate ^ • • Chevron %1010 Timothy C Brandenburg Union Oil Company of California Drilling Manager Anchor age, rage, AK 9 Dr. 9519 -6 24 100 Anhrage, AK 9-6247 Fax 907 263 7884 December 16, 2008 Commissioner Alaska Oil & Gas Conservation Commission 333 W. 7 Avenue Anchorage, Alaska 99501 Re: Application for Permit to Drill Bluebuck 6 -7 -9 Exploration Well Dear Commissioner: Enclosed for approval is a Permit to Drill (form 10 -401) for Union Oil Company Of California to drill the Alaska North Slope White Hills Exploration well, Bluebuck 6 -7 -9. • Subject to AOGCC approval, it is intended to drill Bluebuck 6 -7 -9 with an anticipated spud date of February 2, • 2009. A variance from requirements of 20 AAC 25.035, to utilize a diverter vent line diameter of 12" is requested. This is smaller than the planned surface hole of 12 -1/4 ". A similar request was approved for Smilodon 9 -3 -9, Mastodon 6- 3-9, Panthera 28 -6 -9 and Muskoxen 36 -7 -8 wells with Nabors 106E rig. The AOGCC is requested to treat as confidential all information included in the Application for Permit to Drill as information in these documents is drawn from research and data proprietary to Union Oil Of California a wholly owned subsidiary of Chevron Corporation. If additional information is required, please contact either myself or Mr. Walter Quay at 263 -7812. Pertinent information attached to this application includes the following: 1. Form 10 -401 Application for Permit to Drill — 2 Copies 2. Well Program 3. Wellbore Schematic 4. Drilling Fluids Program 5. Directional Program 6. As Staked Location Plat 7. Days Vs Depth Drilling Plot 8. MASP Calculation & Casing Design 9. Diverter, BOP and Choke Manifold Schematics 10. Shallow Hazard Analysis Sincerely, - Timothy C. Brandenburg Drilling Manager Cc: Well File Union Oil Company of California / A Chevron Company http: / /www.chevron.com • • Chevron Drilling Department 1 40 Bluebuck 6 -7 -9 Well Plan Summary Surface Location: X = 501,142' Y = 5,846,576' As- Staked 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian Target Location: X = 501,142' Y = 5,846,576' Schrader Bluff A 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian Target Location: X = 501,142' Y = 5,846,576' Schrader Bluff B . 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian Target Location: X = 501,142' Y = 5,846,576' Schrader Bluff C 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian Bottom Hole Location: X = 501,142' Y = 5,846,576' 1979' FNL, 1581' FWL, Sec 6, T7N, R9E, Umiat Meridian The well approaches within 13,914' of the nearest UOCC White Hills lease line. 1 Estimated Start Date: 1 02/02/2009 1 1 Operating days to complete: 129 MD: 5000' , 1 1 TVD: 1 5000' • I ( Elev. GL: 1 400' I ( RKB: 121' • Formation Markers: Formation Tops MD - RKB TVD - RKB TVD -GL Comments Base Permafrost 1423 1423 1402 Top Prince Creek A 1589 1589 1568 Top Schrader Bluff A 2575 2575 2554 . Top Schrader Bluff B 3261 3261 3240 Top Schrader Bluff C 4247 4247 4226 Est. TD 5000 5000 4979 Casing Program: Hole Csg/ Wt/Ft Grade Conn Length Top Btm Size Tbg O.D. MDITVD MDITVD rkb Augered 16" 85# L -80 Welded 164' GL 185' 12 -1/4" 9 -5/8" 40.0# L -80 BTC 1950 GL 1950/1950 8-1/2" 4-1/2" 12.6# L -80 I BT -M 3200' 1800'/1800' 5000'/5000' 12/15/08 2 of 47 • • Mud Program: 12 -1/4" Surface Hole (0- 1950'): Fresh Water Mud Initial Value Final Value Density (ppg) 8.5 . 9.0 - 9.4* Funnel Viscosity 100 - 200 70 - 150 (seconds) Yield Point 30 - 40 20 - 30 (cP) Plastic Viscostiy (lb/100 10 - 30 12 - 25 sf) 10 second Gel Strength 10 - 15 10 - 15 (lb/100 sf) 10 minute Gel Strength 20 - 40 20 - 40 (lb/100 sf) pH 9 - 9.5 9 - 9.5 API Filtrate(cc) Unrestricted <10 8 - 1/2" Production Hole (1950' — 5000'): Fresh Water Mud — 6% KCL/PHPA/Clayseal with Calcium Carbonate Initial Value Final Value Density (ppg) 9.1 9.5 Max Funnel Viscosity 45 - 70 45 - 70 (seconds) Yield Point (cP) 15 - 25 15 - 25 Plastic Viscostiy (lb/100 10 - 22 12 - 24 sf) 10 second gel 4 - 4 - 10 minute gel 6 - 13 6 - 14 pH 9 - 9.5 9 - 9.5 API filtrate <3.5 <3.5 Solids % 0 <6 Hydraulics: Surface Hole: 12 -1/4" Interval GPM Mfg Bit Pump PSI ECD ppg Nozzles TFA emw (in 0' -1950' >600 Hughes MX -L1X 1800 9.7 13/15/15/15 0.65 Production Hole: 8 -1/2" Interval GPM Mfg Bit Pump PSI ECD ppg Nozzles TFA (in emw 1950' — 5000' 450 Reed DS619S -A3 2400 9.6 6 x 12/32" .66 Hycalog 12/15/08 3 of 47 • • Logging Program: Logging While Drilling Hole Size Services Run 1 0 -surf csg LWD: GR/Res /Sonic /Directional • Run 2 surf csg -TD LWD: GR/Res /EcoScope /Sonic /Directional • Run 3 Mud Logging Services 0 -surf csg Mudlogger required from surface to TD ' Company Geologist required from Surface to TD 0 -TD Bagged samples of cuttings every 30 feet, with 10 ft samples caught from sandstones and other potential reservoirs from surface to TD (both legs); three washed and dried cuts, one unwashed cut. Check all sandstones with drilloffs for oil fluorescence and cut. Isotube gas sample from mudlogger over all zones of interest. Coring Hole Size Services surf csg -TD 1 Rotary sidewall cores Open Hole Logging Services Hole Size Run 1 8 -1/2" GR- SP -CNL -LDT -Res W /Micro Restivity • Run 2 8 -1/2" MREX W /Micro Restivity Run 3 8 -1/2" RCOR Run 4 8 -1/2" WL RCI (Pressures & Temperature Measurements) Run 5 8-1/2" DP Conveyed RCI(MDT Type Formation Sampler & Pressure) Run 6 8 -1/2" VSP (Minimum checkshot) If WLD data is of sufficient quality, then the GR -CNL- NOTE LDT restivity will be omitted. Integrity Testing: Test Point Depth Test Type EMW Surface Casing Shoe At least 20 feet but not more than LOT Estimated 12.5 ppg EMW. 50 feet of new formation Take the test to Leak Off Cement Calculations: Casing Size 1 9 -5/8" Surface Basis: Lead: Based on 16" conductor set at 185', 1238' of annulus in the permafrost @ 250% excess. Tail: Based on 527' open hole volume + 40% excess + 85' shoe track volume. Total Cement Volume: Lead 266 bbl / 1498 ft / 361 sks of Permafrost Type L at 10.7 ppg and 4.15 cf /sk. Tail 48 bbl / 267 ft' / 230 sks of Premium `G' at 15.8 ppg and 1.16 cf /sk. Production /Abandonment Liner: Casing Size 1 4-1/2" Liner Basis: Float Collar 60' below liner hanger, cemented inside liner from float collar to TD. 40% excess volume in OH from shoe to surface shoe, 150' of liner lap inside surface casing + 100' of excess above the liner top (DP Out) Total Cement Volume: Cement 279 bbls / 1570 ft'/ 561 sks of Premium Cement, 3% Econlite slurry at 11.5 ppg and 2.8 cf /sk 12/15/08 4 of 47 • Well Control: Surface hole will be drilled with a diverter. The MASP is 1022 psi. (See Attached) The intermediate /production hole well control equipment (of at least 3000 psi working pressure) consisti ng of will be equipped with pipe rams, blind rams, and an annular preventer will be installed and is capable of handling the MASP pressure. Based upon the planned casing test of 2000 psi for casing integrity considerations, the BOP equipment will be tested to 2500 psi. Disposal: • Cuttings Handling: Cuttings generated from drilling operations hauled to an approved . disposal facility. • Fluid Handling: All Mud and Used drilling and completion fluids and other Class II wastes hauled to an approved disposal facility. Wastes Handling See the Comprehensive Waste Management plan for all details on Waste Handling. Excess/Used Liquid Mud & Excess Cement Returns Used liquid mud will be stored in a heated tank farm on the first drill site for the 2009, then hauled overland to a disposal site in GPB. Cement returns and wash will be citrate treated, then stored in the used mud tank farm. This cement should be blended with used mud to dilute the cement concentration. Drill cuttings Drill cuttings will be processed by the rig solids control equipment to remove as much liquid from them as possible. The "dry" cuttings will be stored in an ice containment pit on the pad. NO LIQUIDS ARE ALLOWED IN THE CONTAINMENT PIT. The drill cuttings with be stored in the containment pit until: 1) they are backhauled to Deadhorse via Cat 730 ejector trucks with tundra tires to an approved disposal area. 12/15/08 5 of 47 • • Summary of Drilling Operations Pre -Rig Work: 1. Set and cement 16" conductor 2. Install cellar Rig Operations: 1. Nipple Up the 13 -5/8" BOP diverter spool and riser in diverter mode. Function test diverter system. Provide the AOGCC at least 48 hours notice of each BOPE function pressure test so that a commission representative can witness the test . 2. MU 12 -1/4" drilling assembly. Drill surface hole to approximately casing point ( -500' below the permafrost). Drift the drillpipe to 2.4" min. ID for the stab -in dart. 3. Run and cement the 9 -5/8 ", 40.0# surface casing back to surface. A Stab -in cementing system will be utilized. 4. RU the BOPE in BOP Mode and test to 250/2500 psi. Provide the AOGCC at least 48 hours notice of each BOPE function pressure test so that a commission representative can witness the test 5. MU 8 -1/2" drilling assembly and RIH to float collar. Test the 9 -5/8" casing to 2000 psi for 30 minutes. 6. Drill out shoe joints and new formation greater than 20' and less than 50'. Perform the Leak Off Test. 7. Drill ahead to planned TD 8. Circulate and condition hole and perform wiper trip to surface casing shoe. POOH and stand back BHA. 9. RU Open Hole Wireline and run Logging Suite. 10. Run and cement the 4 -1/2" Completion Liner. Test liner and packer to 2000 psi. 11. TOOH and LD drill pipe. 12. Run 4 -1/2" Completion String. Stab into the liner tie -back. 13. Rig down and move off 12/15/08 6 of 47 • 9 Bluebuck 6 -7 -9 DIR / LWD FORM DEPTH- RKB(21') Est. El. GL 400' HOLE CASING MUD INFO MWD MD ND ND DEPTH -RKB 21 SIZE SPECS Cement Info INFO 0' 0' 400' 16" 85 Ib/ft, L -80 16" Conductor 185 185 215 N/A N/A _WD /GR/RES /Sonic Surf ace Cs 9 -5/8" Lead Slurry 40.0 Ibs /ft 266 Bbls, 361 sx Welibore Stability ' L-80, BTC -M 10.7 ppg Lost Circulation ID. = 8.835" 4.15 ft3 /sx Hole Cleaning Int. Yield 5750 psi Casing Sections Collapse 3090 psi Casing Wear Et Base PF 1,423' 1,423' -1,002 i Top of Tail Cement INN tin Prince Creek A 1,589' 1,589' - 1,168' > IN Tail Slurry °'i. 48 Bbls, 230 sx ;iI # # # #. 15.8 ppg Top of Liner ;1 Hanger, d' 1.16 ft3/sx & Packer if iikl: € €i , it € €11Eit > Assbly 1,800' 1,800' - 1,379' F:;.<.k� €F '=F€F >€:. €< €n.€ ..iiR 3 iiMIZU :; ,i 9.0 -10.0 ppg hj: 9 -5/8" Casing 1,950' 1,950' - 1,529 1 " nu = a:: 12 -1 /4 60 ° F Water Based Mud kE.€i� LWD /GR/RES /EcoScope l ..€. x 4iF'e rz'iz i Inter. Casing Lead Slurry Welibore Stability • iiiiiiiiiiiiii Lost Circulation 4 - 1 /2" 279 Bbls, 561 sx 9 "a;z „ai. Hole Cleaning ittt9 "'” ' k' 12.6 #/ft 11.5 ppg i;n; era;: sa . a . ' z ' i) <f t €E €i, #1€ L -80, IBT i ii ( (((( R ID. = 3.958 2.8 ft3 /sx Torque & Drag Schrader Bluff A 2,575' 2,575' - 2,154' f iii'' iii Int Yield 8430psi i Casing Sections x ^,�rar - t. .,.,,, Collapse '.. F hl : 7500 psi Schrader Bluff B 3,261' 3,261' - 2,840' 1 , --- "C i k F x Schrader Bluff C 4,247' 4,247' - 3,826' o i v k as € #. RCI Sampling 4 -1/2" Liner 5,000' 5,000' 4,579' 3 ,; 8 -1/2" 85°F 12/15/2008 12/15/08 7 of 47 S Halliburton BAROID Chevron Mud Program Chevron I OW White Hills Bluebuck 6 -7 -9 Baroid Mud Program Halliburton Baroid Name (Printed) Signature Date Originator Dave Soquet Reviewed by Dave Higbie Customer Approval Walter Quay Version No: Date: 1.0 December 8, 2008 Bluebuck v1.0 1 12/8/08 12/15/08 8 of 47 • I Halliburton BAROID Chevron Mud Program Bluebuck 6 - - General Discussion This exploration well will be drilled from an ice pad south of Kuparuk. Due to the remote location, waste management is critical on this well. A 12 -1/4" surface hole will be drilled vertically to a depth of -1,950' where 9 -5/8" casing will be set and cemented. An 8 -1/2" production hole will then be drilled vertically to a depth of -5,000'. After logging the production interval, a 4 -1/2" liner w ill be run and cemented. Spud the well with a conventional gel -based spud mud system. Our primary focus for surface hole drilling operations will be adequate mud weight for well control and sufficient mud viscosity and flowrates for efficient hole cleaning. A mud chiller will be utilized to minimize thawing of the permafrost and hole washout. A new fresh water, 6% KCI / PHPA / Clayseal system with calcium carbonate will be used for the production interval. The calcium carbonate will provide bridging and additional filtrate control in an attem pt to reduce filtrate invasion into the wellbore. Special Considerations: i. While gas hydrates are unlikely, maintain a sufficient quantity of Driltreat (lecithin) to accomplish a 2 ppb treatment in the event gas hydrates are noted. Contact the Technical Representative prior to any additions of Driltreat. ii. Lime and zinc carbonate should be on location for H2S contingency ( @1 pallet No SuIf and 2 pallets ,/ lime). iii. Maintain an adequate barite supply (and other necessary products) to increase the mud weight of the current circulating volume by 1.5 ppg at any time ( @1500 sx barite on location at all times). iv. Due to the remote nature of this location, maintain an adequate supply of LCM and the other mud additives, which may be required to support this drilling program. v. Sticky clays have been problematic in the area. Maintain Dril -N- Slide /Condet at a total concentration of -1% to minimize screen blinding and the agglomeration of the clays. vi. Reduce the potential for hole erosion /destabilization, hold the jet velocity below 200 fps while achieving pump rates to deliver AV's around the drill pipe in the 150 -200 f pm range. vii. Some shale instability has been noted on offset wells (maintain tight filtrate control /mud weight). viii. Obtaining good logs and fluid samples are a key component of this drilling program. Maintaining low filtrate and using the inhibitive mud system will limit fluid invasion and help drill a gauge hole. ix. Maintain an adequate supply of STEELSEAL should losses be observed. String 3 -5 sx/hr immediately after noting losses. Again, this may also improve the post well fluid samples by limiting drilling fluid invasion. Well Specifics: Casing Program MD TVD Footage 12 -1/4" hole (9 -5/8" casing) 1,950' 1,950' 1,950' 8 -1/2" hole (4 -1/2" liner) 5,000' 5,000' 3,050' Bluebuck v1.0 2 12/8/08 12/15/08 9 of 47 • M Halliburton BAROID Chevron Mud Program Surface Interval: 12 -1/4" to -1,950'; Spud Mud Mud Properties Initial Value Final Value Density (ppg) 8.5 9.0 -9.4* Funnel Viscosity (seconds) 100 -200 70 -150 Yield Point 30 -40 20 -30 (cP) Plastic Viscostiy (lb /100 sf) 10 -30 12 -25 10 second Gel Strength (lb /100 sf) 10 -15 10 -15 10 minute Gel Strength (lb /100 sf) 20 -40 20 -40 pH 9 -9.5 9 -9.5 API Filtrate(cc) Unrestricted <10 *Weight increase due to natural progression of solids. A weight up is not programmed. Surface Interval The surface interval of this well will be drilled with a conventional spud mud as formulated below: Base Formulation: Fresh Water - .982 bbl /bbl Aquagel - 25 ppb X -Tend II - .1 ppb (250 viscosity) Caustic soda - .2 ppb (pH 9 -9.5) Spud the well with maximum flow rates (600 gpm minimum assuming 12 -1/4" hole w /4" drill pipe) to ensure good cuttings transport. Target an initial YP in the 30 -40 range with a 100 -200 viscosity. After penetrating the upper gravels and the permafrost, gradually reduce the funnel viscosity to ca. 70 -150 sec as the hole allows. Reduce the API FL to under 12 cc /30 min with additions of Dextrid. At interval TD, pump a high viscosity or Barolift sweep and condition the mud for running casing. Once the casing is landed, pre -treat the system for cement with a minimum of 0.5 ppb citric acid and 1.0 ppb bicarb. Add 0.25 -0.5 ppg Carbonox or Barathin to thin mud to target properties (converse with the cementers to see what properties they have based their design on). With an initial mud density of 8.5 ppg, please note the other is sues of concern as listed below: 1. Make sure all members of the drilling team are aware of the potential of encountering gas hydrates. 2. A mud weight increase is not currently programmed for drilling the gas hydrate interval of the well, if encountered. 3. If gas hydrates are noted, treat the system with 2.0 ppb of Driltreat (Lecithin) and %% by volume ,/ Dril -N- Slide. Some defoamer additions may also be necessary to help the gas break out. 4. Maintain the mud as cool as possible (40 - 60 °F if possible). Efforts to keep the fluid cool include mudding up with cold water, diluting the mud with cold water, and utilizing a mud chiller. Bluebuck v1.0 3 12/8/08 12/15/08 10 of 47 Halliburton BAROID Chevron Mud Program Mud maintenance issues for this interval of the well are as follows: 1. Use Aquagel and X -Tend II for viscosity and YP requirements. Initially target a viscosity of 100 -200 range, allowing it to gradually decrease as the permafrost is exited. 2. Use Dextrid for API filtration control. No filtrate control is planned initially, but drop the fluid loss to the 12 cc range prior to exiting the perm afrost. 3. Hold the pH in the 8.5 -9.5 range w ith caustic soda. 4. Dril -N- Slide /Condet additions will be required to minimize screen blinding. Maintain a total concentration of 1% v /v. 5. Control penetration rates based upon the abil ity of the surface system to process the drilling mud. 6. Daily additions of X -Cide 207 will be necessary to control bacterial action after adding Dextrid. 7. Minimize dilution requirements and keep the mud as clean as possible through aggressive use of solids - control equipment. 8. Once casing is on bottom, thin the mud with Carbonox or Barathin to minimize channeling and improve the cement job. A strong focus on minimizing waste needs to be in place before and while drilling all sections of this well. Do not jeopardize the integrity of the fluid system; however, all efforts need to be made to this end. Allow the pit volume to deplete prior to T D on the surface hole. This will leave more room in the pits for displaced mud when cementing. Ensure all solids control equipment is working properly prior to spudding. Utilize shakers, desanders /desilters, mud cleaners and centrif uge(s) to reduce sol ids and reduce dilution. No processes should take place that will lead to a build up of low gravity solids in the mud. Build and maintain the system with COLD water. All attempts to keep the temperature of the mud 40 - 60 °F should be made. A mud chiller will be utilized to minimize thawing of the permafrost and hole washout. Normal surface hole viscosities should be adequate for this vertical well. Maximum flow rates should be used to ensure good cuttings transport. Target an initial YP in the 30 -40 range then adjust as dictated by the actual hole cleaning requirements of the well. However, do not hesitate to quickly raise the viscosity if hole cleaning problems develop. Aquagel and X -Tend II additions should be utilized to provide rheological support as needed. Utilize high viscosity sweeps to supplement the hole cleaning capabilities of the system. On Smilodon, it was noted that adequate flowrates were not achieved due to shaker screen blinding. Maintain Dril -N- Slide /Condet at a total concentration of -1% to minimize screen blinding and the agglomeration of the clays. It is important to exercise caution to minimize the potential for creating a situation of lost circulation. Tripping speeds and casing running speeds should be slowed to reduce the effects of surge pressures on the formation especially with this elevated rheology. Do not attempt to run casing if the well is not in stable condition. Pumps should be "staged" on line slowly to avoid surging the hole and the pipe rotated to break the mud's gels before turning the pumps on. While tripping out of the Panthera surface hole, significant tight spots, packing off, and lost circulation were encountered resulting in stuck pipe and the inability to run casing. This was likely due to running gravel and the resultant increased hole diameter. Pay careful attention to detect any potentially sloughing gravel early. Bluebuck v1.0 4 12/8/08 12/15/08 11 of 47 • • Halliburton BAROID Chevron Mud Program Production Interval: 8 to 5,000'; 6% KCI /PHPA /Clayseal with Calcium Carbonate Mud Properties Initial Value Final Value Density (ppg) 9.1 • 9.5 max * • Funnel Viscosity (seconds) 45 -70 45 -70 Yield Point 15 -25 15 -25 (cP) Plastic Viscostiy (lb /100 st) 10 -22 12 -24 10 second gel 4 -8 4 -8 10 minute gel 6 -13 6 -14 pH 9 -9.5 9 -9.5 API filtrate <3.5 <3.5 Solids % <6 <6 * Unless hole conditions dictate otherwise Base Formulation: Fresh Water - 0.911 bbl KCI - 20 lbs (30 -32K ppm chlorides) EZ Mud DP - 0.75 lbs (.15 ppb in initial mix) Clayseal - 0.84 gal (none in initial mix) Dextrid - 3 lbs (API filtrate <3.5 cc) Barazan -D - 1 -2 lbs (as required for an initial 20 YP) KOH - 0.1 -.25 lbs (pH = 9 -9.5) Baracarb 5 - 9 lbs Baracarb 25 - 9 lbs Baracarb 50 - 12 lbs Dril -N -Slide - 1.0% v/v X -Cide 207 - 0.25 lbs Baracor 700 - 1 ppb Barascav D - 0.5 ppb (to be added at the rig w hen first circulating) ** Use Barite or Baracarb for any needed weight ups on this well. NOT drill solids. While drilling, gradually increase the EZ Mud DP until the full 0.75 ppb is reached. Once the full EZ Mud concentration is reached, begin to gradually add Clayseal to a final concentration of 0.84 gal /bbl. Ensure the shakers can handle a flowrate of 450 gpm at all times while increasing the EZ Mud and Clayseal concentrations. Once the full concentrations are achieved, maintain them until interval TD. Decrease the API filtrate to <3.5 cc /30 for the interval using Dextrid and /or PAC L. Keep low gravity drilled solids to a minimum ( <6% by volume if possible). Maintain the MBT at <12 ppb through dilution and solids control. Maintain the pH between 9.0 -9.5 with KOH. Daily additions of X -Cide 207 should be made to control bacterial action. The chloride level should be kept in the 28 -34K range through additions of KCI. The EZ Mud concentration should be maintained at .75 ppb. A 15 -25 Y P should be maintained using Barazan D +. Extremely sticky clays were noted on the Smilodon well. Maintain —1% Dril -N -Slide in the system to combat screen blinding from sticky clays. Condet additions can also be made to combat screen blinding and clay agglomeration. The system will be weighted to 9.1 initially. Maintain the Baracarbs in their recommended concentrations for effective bridging. Expect a natural weight progression as drill solids build up in the fluid. Maximize Bluebuck v1.0 5 12/8/08 12/15/08 12 of 47 • Halliburton BAROID Chevron Mud Program solids control usage and anticipate additional Baracarb additions when running the centrifuge to control drill solids. Do not allow the mud weight to increase over 9.5 ppg. If necessary, use whole mud dilutions to keep the mud weight in range. A 15 -25 YP should be maintained using Barazan D +. Periodic sweeps should be pumped and monitored to gauge their effectiveness. Special efforts should be made to keep ECD's and surge /swab pressures to a minimum. This will reduce the chances of lost circulation and also reduce dam age to the exposed shales. If seepage losses are noted while drilling the sands, immediately string in STEELSEAL at 3 -5 sx/hr. Obtaining good logs and fluid samples are key goals of the well. Tight hole can be anticipated for the first time tripping through new hole after it has been drilled. If backreaming becomes necessary, extreme caution must be used to avoid the potential for packing off and stuck pipe. Extended circulating times may be required to remove cuttings from the hole and minimize cuttings loading in the annulus. Mud plant support is available for this well. All efforts must be made to keep the mud system in good shape and maintain the mud weight as low as possible. Should whole mud dilution be needed, contact the mud plant well in advance to plan for any needed whole mud requirements. Bluebuck v1.0 6 12/8/08 12/15/08 13 of 47 • • Halliburton BAROID Chevron Mud Program Recommended Drilling Parameters: Penetration Rates: Please see the following optimization chart for maximum allowable penetration rates. These rates are set for rotating not sliding. Penetration rates might need to be controlled to minimize overloading the annulus with cuttings. Close monitoring of PWD data will assist in diagnosing this potential problem and allow real - time, timely remedial actions. Due to the vertical profile of this well, rpm has little effect on hole cleaning. Hydraulics Optimization Chart Actual P rates will need adjusted to how well the surface equipment can handle the flow and cuttings. 12 -1/4" Maximum Acceptable ROP in fph at Specified GPM and RPM GPM— 500 600 700 60 rpm 141 194 223 80 rpm 141 194 223 8 -1/2" Maximum Acceptable ROP in fph at Specified GPM and RPM GPM—) 300 400 500 60 rpm 159 251 333 80 rpm 159 251 333 Hole Cleaning: Maintaining the programmed flow properties is essential to the successful completion of this well. Any indication of a failure to keep the annulus clean of excess cuttings (drag, torque, partial pack offs) should be countered by increasing the circulation time on subsequent connections and prior to trips. Pipe rotation should also be used in conjunction with the pumping of high viscosity sweeps. If these sweeps seem ineffective, other type sweeps (Barolift, weighted, etc.) should be tried. The returns at surface of all sweeps should be monitored at the shakers to gauge their effectiveness. When circulating bottoms up prior to POH, it is advisable to pull one stand every half hour to reduce the hole washout effects of circulating over one short interval. Waste Minimization: 1. Solids Control Equipment — for reduced dilution volume. Monitoring shaker screen mesh size and checking for screen damage (holes) is a primary responsibility of both the fluids engineer and rig contractor. The centrifuge must be run as much as possible to reduce dilution throughout all hole sections. 2. Gauge Hole — for reduced cuttings volume. • Inhibitive Mud System — Use of 6% KCI /PHPA/Clayseal system as outlined in the mud program to reduce washout in clay /shale sections of the production interval • Hydraulics and Rheology as recommended in the mud program to reduce washouts in unconsolidated formations, especially on surface hole. • Use of near freezing water for mud make -up and dilution to reduce thaw ing of Permafrost. Note: the close proximity of heat generating equipm ent (power plants) to the mud pits on some rigs can increase the surface mud temperatures by 10 to 15 deg F while drilling surface hole. • Drilling the surface hole and running cas ing as efficiently as possible to reduce time, thus thawing and washout of the Permafrost. Tracking and Reporting of Waste Streams and Costs: Bluebuck v1.0 7 12/8/08 12/15/08 14 of 47 • S Chevron We consider this to be of vital importance. TFM reports will be completed daily. Interval and well summaries will also be done. Lubrication: Due to the vertical nature of this wellbore, lubricant support is not anticipated. If required, 1 -2% of EZ Glide or Torq Trim II can be added. Risks and Contingencies: Lost Circulation: Preventing the initiation of lost returns should be a primary goal of the drilling fluid in the production zone. To that end the rheology of the system has been reduced while still providing ample hole cleaning. Maintaining a low ECD while circulating, and eliminating high pressure spikes while tripping, will both go a long way toward reducing the risk of lost returns. Should lost returns occur check with MWD personnel prior to pumping any pills to assure that no plugging w ill occur. Wellbore Instability: Some splintered shale was noted on Smilodon. Ensure the mud has tight filtrate control and minimize mechanical disturbance of the wellbore. Should any signs of shale splintering be seen immediately raise the mud weight a minimum of 0.4 ppg. Stuck pipe: Two forms of stuck pipe are possible. One is from hole pack -off as related to poor hole cleaning. Stuck pipe can occur if the hole isn't clean or if the wellbore exhibits severe instability. The best cure is to pro - actively prevent the occurrence of either scenario, and one does occur, correct drilling practices must be employed. If pulling up into a tight spot, do not jar up further, but attempt to get below the problem. Backreaming is an invitation to packing off and resulting stuck pipe so backreaming must be done with care and only when necessary. If stuck pipe occurs across a sand zone and there are indications of differential sticking, there are drilling fluid solutions. If possible, reducing the fluid density by a minimum of 0.5 ppg may provide some relief. Bluebuck v1.0 8 12/8/08 12/15/08 15 of 47 • • Halliburton BAROID Chevron Mud Program 12 -1/4" Surface — Modeled hole cleaning OpederCheam Pie 108 SOW 1.546% %CD17gfdd :dilate Dias Wet Mud flow Rare vEDOOan ROP =100M1 1533X Cling El Cdting: iianspod Average Mee ECD kWei¢I=9.361gd CAN Dia =.25n toad,X Ell ave% V, Ian 811 COO IV rpm /H0.60 0mlC =3ml 1 613 i�ocdl dad e ,: 034 G159111111 1000 1 _ lE 12.25 4. x 2563 100001111 1300t1r25i1Ift 000 9.419/9 Legal 8.x 2813x160.0111 T �2310.0 5 10 15 20 25 0 50 100 0 85 121 30 60 90 9.33 920 10.30 4hOJfhx Good hole cleaning can be achieved with 600 gpm at 100' per hour. Baroid does not recommend drilling at rates above 150' /hr on surf ace. Elevated penetration rates may cause problems with "clay chunks " / clay rings plugging off the flowline and causing pack offs. 12/8/08 12/15/08 16 of 47 • • Halliburton BAROID Chevron Mud Program 8 -1/2" Production — Modeled hole cleaning Opeiala[tenm Rig 100 : S% KJJP1PAJClagseeDON 1.491 %G EIN :orhador.Nahas A kid : flax he :10001 POP =120h 1.418 %O17gEfl Wig iiampod Are age He ECD Mud3601 =9.3big4 CuingDia =.15n Loa( % ElavgX V,IUnn Aare IWO RI x@150 11/1(60100.00ipTe3m /Wm/ 1.49 wCul 1000- 8Dfi0 . _, 2000 1110 i 1550C1155(.310 I /5 91 5 b - -1 I.X336 4581.I0I 3000 CO- 4. x 2563 X 200.001 L II ) 6.75 x z(11309].(1111 L 615%X31081 050 5000 Ito 1 I 5011(• 11 6.15 x x 1268 11 5120.0 9.'s / ° Nq4 5 10 15 )0 25 0 23 103 0 184 361 55 23 9) 91 955 10.1 5hglitrxe Excellent hole cleaning is achieved at 150 fph at 400 gpm. Pump rates over 600 gpm cause a sharp increase in ECD and are not necessary to clean this hole section. 12/15/08 17 of 47 Chevron %. Blue Buck 6 -7 -9 (P1) Proposal %0 $cblumberger Report Date: December 4, 2008 Survey 1 DLS Computation Method: Minimum Curvature / Lubinski Client: Chevron Vertical Section Azimuth: 90.000° Field: White Hills Chevron Vertical Section Origin: N 0.000 ft, E 0.000 ft Structure /Slot: Blue Buck / Blue Buck SW O TVD Reference Datum: Rotary Table Well: Blue Buck ��'� TVD Reference Elevation: 421.00 ft relative to MSL Borehole: Blue Buck 6-7 -9 F Sea Bed I Ground Level Elevation: 400.00 ft relative to MSL UWUAPI#: 50 Magnetic Declination: 22.142° Survey Name 1 Date: Blue Buck (P1) / December 4, 2008 Total Field Strength: 57619.783 nT Tort/ AHD I DDI 1 ERD ratio: 0.000° / 0.00 ft / 0.000 / 0.000 Magnetic Dip: 80.563° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: January 15, 2009 Location LatiLong: N 69.99204331, W 149.99088510 Magnetic Declination Model: BGGM 2008 • Location Grid NIE YIX: N 5846575.750 ftUS, E 501142.320 ftUS ' North Reference: True North Grid Convergence Angle: +0.00856478 Total Corr Mag North -> True North: +22.142° Grid Scale Factor. 0.99990000 Local Coordinates Referenced To: Well Head Measured Vertical Mag 1 Gray Directional I Comments Inclination Azimuth Sub-Sea TVD TVD NS EW DLS Northing Easting Latitude Longitude Depth Section Tool Face Difficulty I (ft) _ (deg) I (deg) (ft) (ft) (ft ) (ft ) (ft) (deg) (deg1100ft ) Index (ftUS) (ftUS) RTE 0.00 0.00 0.00 - 421.00 0.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 • 501142.32 • N 69.99204331 W 149.99088510 GL 21.00 0.00 0.00 - 400.00 21.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 16" Conductor 180.00 0.00 0.00 - 241.00 180.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 200.00 0.00 0.00 - 221.00 200.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 400.00 0.00 0.00 -21.00 400.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 MSL 421.00 0.00 0.00 0.00 421.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 600.00 0.00 0.00 179.00 600.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 800.00 0.00 0.00 379.00 800.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 1000.00 0.00 0.00 579.00 1000.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 1200.00 0.00 0.00 779.00 1200.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 1400.00 0.00 0.00 979.00 1400.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 Base Perm 1423.00 0.00 0.00 1002.00 1423.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 Prince Creek A 1589.00 0.00 0.00 1168.00 1589.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 1600.00 0.00 0.00 1179.00 1600.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 1800.00 0.00 0.00 1379.00 1800.00 0.00 0.00 0.00 -- 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 9 -5/8" Csg 1950.00 0.00 0.00 1529.00 1950.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 2000.00 0.00 0.00 1579.00 2000.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 2200.00 0.00 0.00 1779.00 2200.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 2400.00 0.00 0.00 1979.00 2400.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 2600.00 0.00 0.00 2179.00 2600.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 SchraderA 2735.00 0.00 0.00 2314.00 2735.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 2800.00 0.00 0.00 2379.00 2800.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 Well Design Ver SP 2.1 Bld( doc40x 100) Blue Buck \Blue Buck \Blue Buck 6 -7 -9 \Blue Buck (P1) Generated 12/8/2008 2:03 PM Page 1 of 2 12/15/08 18 of 47 Measured Vertical Mag 1 Graf DLS Comments Inclination Azimuth Sub-Sea N eaD TVD NS EW DLS Northing Easting Latitude Longitude Depth Section Tool Face Difficulty (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (deg) (degllOOft ) Index (ftUS) (ftUS) 3000.00 0.00 0.00 2579.00 3000.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 3200.00 0.00 0.00 2779.00 3200.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 3400.00 0.00 0.00 2979.00 3400.00 0.00 0.00 0.00 -- 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 Schrader B 3547.00 0.00 0.00 3126.00 3547.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 3600.00 0.00 0.00 3179.00 3600.00 0.00 0.00 0.00 -- 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 3800.00 0.00 0.00 3379.00 3800.00 0.00 0.00 0.00 -- 0.00 0.00 - 5846575.75 501142.32 N 69.99204331 W 149.99088510 4000.00 0.00 0.00 3579.00 4000.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 4200.00 0.00 0.00 3779.00 4200.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 Schrader C 4247.00 0.00 0.00 3826.00 4247.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 4400.00 0.00 0.00 3979.00 4400.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 4600.00 0.00 0.00 4179.00 4600.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.9908851 4800.00 0.00 0.00 4379.00 4800.00 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 4999.90 0.00 0.00 4578.90 4999.90 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 TD / 4 -1/2" Lnr ' 5000.00 0.00 0.00 4579.00 5000.00 • 0.00 0.00 0.00 - 0.00 0.00 5846575.75 501142.32 N 69.99204331 W 149.99088510 Survey Error Model: SLB ISCWSA version 24*** 3 -D 95.00% Confidence 2.7955 sigma Surveying Proq: MD From (ft) MD To I ft) EOU Freq Survey Tool Type Borehole -> Survey 0.00 21.00 1/100.00 SLB_MWD- STDAA1 -Depth Only Blue Buck 6 -7 -9 -> Blue Buck (P1) 21.00 1950.00 1/100.00 SLB MWD- STDAA1 Blue Buck 6 -7 -9 -> Blue Buck (P1) 1950.00 5000.00 1/100.00 SLB MWD- STDAA2 Blue Buck 6 -7 -9 -> Blue Buck (P1) Legal Description: Northing M FftUSI Eastina (X) (ftUS1 Surface : 1979 FNL 1581 FWL S6 T7N R9E UM • 5846575.75 501142.32 BHL : 1979 FNL 1581 FWL S6 T7N R9E UM • 5846575.75 501142.32 • WellDesign Ver SP 2.1 Bld( doc40x 100) Blue Buck \Blue Buck \Blue Buck 6 -7 -9 \Blue Buck (P1) Generated 12/8/2008 2:03 PM Page 2 of 2 12/15/08 19 of 47 Chevron • • Schlumberger 1 STRUCIURE Bl ue Blue Buck (P1) I -' White Hills Chevron Blue Buck Magnetic Persuaders Surface Location NAD27 Alaska State Planes, Zone 04, US Feet Miscellaneses M+d€t BOOM 20010 OF 80.5112 Date: January 15, 2009 Let: N621 59 31358 Nedttlitg: 5846575.75 003 OM 0+0,: 40.0085847V ... 770 Rd: Rotary Tattle (421.00 ft above 5.15L) Meg Dec: 422.142 FS: 57019.5 nT Lon: W149 59 27 186 Emling: 501142321613 Scale Fad: 0.9996000015 Plan: Blue Suck (P1) Soy Date: December 04. 2008 -1200 -600 0 600 1200 0 . . . . . . 0 • . L 16" Conducbr SL 600 600 1200 1200 i . .. :ase Penn 1- - - - - -c - rime Creela - - 1800 1800 • L 9418" Cs9 '...' 0 0 (1 ::? 'E 0 2400 2400 II a) ra c) (.0 0 - rider A 3000 .:. 3000 3600 3600 4200 4200 i .. - chrader C 4800 4800 • . L m, 4-1/2" Lnr .:lue Buck (P1) ' 12/15/08 20 of 47 -1200 -600 0 600 1200 Vertical Section (ft) Azim = 90 Scale = 1(in):600(ft) Origin = 0 N/-S, 0 E/-V r • S REV DATE BY CK APP DESCRIPTION REV DATE BY CK APP DESCRIPTION BLUE BUCK DRILL PAD 1 V T �, / `-� ; 1. LOCATED WITHIN PROTRACTED . ., u ,. i-. --- SEC. 6, T 7 N, R 9 E, --- ( .� UMIAT MERIDIAN. r,� ! r 1979' F.N.L. 1581' F.W.L. ¶ h, ASP ZONE 4 �.. A � BLUE BU ' NAD 27 COORDINATES N LAT = N 69' 59' 31.3559" I , '� = . LONG = W 149' 59' 27.1863" "' Y = 5,846,575.75' x 385 ' ""` X = 501,142.32' NOTES: T 7 N '1. 1. COORDINATES SHOWN ARE NAD 27 ALASKA r ' , ,. STATE PLANE ZONE 4. VICINITY MAP 2. GEOGRAPHIC COORDINATES ARE NAD 27. • 3. ALL DISTANCES ARE GROUND. 1" = APPROX. 1/2 MILE 4. PAD IS ROTATED 20' WEST FROM NORTH. USGS QUAD. 5. VERTICAL DATUM IS ASSUMED. SAGAVANIRKTOK D -5 s \3 98— 41 0j\ - 0 398 Ni p E ✓ o+ \ 4O\ ,---- X39 $ BLUE BUCK ) I �, -. �1 I � LEGEND W 0 \ DENOTES SPILL TRAJECTORY 51� �� I STAKED CONDUCTOR LOCATION 4 4 / / j BLUE BUCK DRILL PAD LOUNSBURY SCALE: so s ASSOCIATES, IN P 1 " = 200' l b 007 -272 -6461 CHEVRON BLUE BUCK DRILL PAD AS- STAKED DRAWING UNION OIL OF CAUFORNIA WITH TOPO AND SPILL TRAJECTORY CADD 9 . i ; t DRAWING NO: SHEET: 2a o f gFiEV: BLUE : 0 8 AUGUST 2008 06- 025 / 2008 _SURVEY /DRAWINGS /BLUE_BUCK.DWG 1 OF 1 0 trill Bluebuck Chevron Depth vs. Time Mob Rig /RU —A— Bluebuck Actual �-- Bluebuck Plan 0 *I• 12 -1/4" Ho e SPUD • 1000 9 -5/8" .s ng 2000 • 8 -1/2" ole 3000 -1/2" Liner /P&A 4000 • 5000 Loggi g 6000 i i I i I I I i I i I I I i I I I I i i i i ' I I I i i i a i i i I i 1 0 5 10 15 20 25 30 35 40 45 50 Time (Days) 12/15/08 22 of 47 0 • P4, Chevron Maximum Anticipated Surface Pressure Calculation Bluebuck 6 -7 -9 White Hills Exploration Assumptions: 1. Based on offset drilling data & G &G evaluation and analysis, the pore pressure gradient is predicted to be a a normal 0.433 psi /ft gradient from surface to planned total depth at 5000' TVD BRT. 2. The M.A.S.P. during drilling operations will be governed by the 9 -5/8" shoe frac gradient, and is calculated based on a full column of gas between the 9 -5/8" shoe and the surface. With the shoe for Bluebuck at 1950' TVD, the Leak -off is anticipated to be -12 ppg EMW. 3. The M.A.S.P. during production operations will be the estimated SIBHP minus the gas hydrostatic pressure between TD & the surface. M.A.S.P. Drilling 8 -1/2" Hole at 5000' TVD Max. pore pressure at T.D. = 5,000 ft. x 0.433 psi /ft = 2165 psi M.A.S.P. = 2165 psi - ( 0.1 psi /ft x 5000 ) = 1665 psi Or Max. At Casing Shoe = 1,950 ft. x 12.0 ppg = 1217 psi M.A.S.P. = 1217 psi - ( 0.1 psi /ft x 1950 ) = 1022 psi • Calculation & Casing Design Factors 4V Chevron Bluebuck 6 -7-9 White Hills Exploration WELL: Bluebuck 6 -7-9 FIELD: White Hills DATE: 10 -Dec -08 DESIGN BY: W. Quay Sect. 1 12 1/4" hole MUD WT. 9.5 PPG MASP= 0 Diverter Sect. 2 8 1/2" hole MUD WT. 9.3 PPG MASP= 969 psi TENSION MINIMUM COLLAPSE COLLAPSE WEIGHT TOP OF STRENGTH PRESS @ RESIST. MINIMUM • DESCRIPTION W/O BF SECTION TENSION WORST CASE BOTTOM w/o TENSION WORST CASE MASP YIELD WORST CASE SECTION CASING : BOTTOM TOP LENGTH WT. GRADE THREAD LBS LBS 1000 LBS SF TENSION PSI" PSI SF COLL. PSI" PSI SF BURST 1 9-5/8" 1,950 0 1950 40 L-80 BTC 78,000 78,000 916 11.74 881 3,090 3.51 1,022 5,750 5.63 TVD 1,950 0 " Collapse pressure is calculated; Normal Pressure Fluid Gradient for external stress (.452 psi/ft) and the casing evacuated for the internal stress (0 psi/ft) " See attached sheet for calculation of MASP • • Chevron Diverter Schematic %O. Date - October 17, 2007 Location - White Hills is -Nort North Sipe iftl. Rig - Nabors 106E 4 _M1 r 1 ' Stack: Size - 13 5/8" Pressure Rating - 5000 PSI mum Im_I- 1101 I Annular: Hydril 13 -5/8" GK 0 r - 111 i i B - Ft1 1>• 111x191161 I 1 Double Gate BOP Deactivated 1 I 11t> _ 1 1 Drilling Spool 16i 1®I liti i — _________--- _________ j Single Gate BOP Deactivated 1151 5111 - 1111 - 111 1 t11L. BI E _ Knife Valve: ® o — 124 • o — 12" Diverter Line o . 1lti litl_Ifa1- 1us_I ®I ®1 tat 1111 - 1111 - 1111 111/: 12/15/08 25 of 47 ^ a N 1200 pool in !IEEE III 1.1111. I Ii ' ! �It EMS I I�1�10 1i 1 • 1 � ENNE'I l�5 fir, �' -' 1 � ■ rM■ ■I� BUILDING 1 �I■ 1r ern■ . alp _77,171--14, �!�� I1�� I; ��.�r � � III I I I l 1 : III - - ii i f �' ,_ • u i Iii� ' , / ` I � II �i - �I III I I IiINFA MEi rak i_71 1 I II •Pl I ,� t -' : � IIIIIM ■ i ii 1 BUILDING 2 Iii a, 1 - 7 l�MIN .,: ,� ..�, 1' II"_ "r11 Gh r1 ■ �` - i ��1 -v- .1=0 BUILDING 3 1 p. al. OW MINIM' 1 kSl wr®r - -'+ OCLT3 �, �� I - _ = MI - BUILDING 4 11 I BUILDING 5 ' CI I BUILDING B I I' • HELI RIG 106 - DIVERTER LINE LAYOUT N 5 Chevron BOP Schematic 11%.1 Date - October 17, 2007 Location - White Hills - Nort North Sipe 14101. Rig - Nabors 106E P Stack: Size - 13 5/8" Pressure Rating - 5000 PSI IM4161161 .ill .mono Annular: Hydril 13 -5 /8" GK r 1®1 sea sue eis sus sus ' Double Gate BOP Shaffer 13 -5/8" SL 111t it1t Eta) Drilling Spool apprp LITh if t at It Single Gate BOP Shaffer 13 -5/8" SL tali. I — tt Iltt till m ® -° Blanked Off Diverter Outlet o, 11t dth � Ohl HMI 11111Nt1[jl 191101 12/15/08 27 of 47 \ABORS 3RILLI \G a `o P, f orks elm t _, VIEW VIEW ,. C * '‘ Eh all c C : $ c *. . i ocro ___k L_t_VO C c Ill r 4‘1 . . . 1 kik,' • \\ VIEW •�� 41 ._ �� - _� AA 1 f qiP WI �� ®� 1 ;,i�� — �S 'WWI 91 9:1 rzy 71P �I " �d�h �" f 4i 1 5) �� w � � � i � 11 K` C 1- VIEW � VIEW VIEW _D '� r� C - — 10 AA CC BB Scale: Date: Description: N.T.S APR 11 2007 3 -1/8" 5,000# NACE Drawn by: DWG# TRIM CHOKE & KILL RAVI MANI NDR #106 MANIFOLD SYSTEM r 5 � Checked REV a by: 00 PACIFIC VALVE SERVICES INC. • Chevron R OO 11 110 LEAK OFF TEST PROCEDURE 1. Clean out the rathole below the shoe, and drill 20' of new hole. Circulate and condition mud. 2. Pull the drill string into the shoe. Rig up to observe annulus pressures. 3. Close the pipe rams and pump down the drillpipe at a slow rate (1/4 - 1/3 BPM) if exposed formation is permeable. A non - permeable formation should be step tested to a predetermined pressure. 4. Measure the volume pumped and plot annulus pressure -vs- cumulative volume pumped. Compare annulus pressure to drill pipe pressure and confirm both are the same. Record and plot pressure versus volume pumped. The pumps should be shut down immediately upon indication of leak -off. Record the inital, shut down pressure and the pressure after 1, 2, and 3 minutes. 5. Release pressure and record the volume of fluid recovered in the trip tank. The point "B" shown in the attached graph at which the plot of drillpipe pressure stops increasing equally as the volume is pumped is called the P.I.T. limit, Leak Off, or pressure integrity test limit. The leak -off pressure is calculated as follows: Leak -off (EMVV) = Mud weight in hole + P.I.T. (PSI) (0.052) X (shoe depth in TVD ft.) This equivalent mud weight should be made known to all drilling personnel to ensure it is not exceeded. See the drilling procedure for guidelines on expected LOT's or pressure integrity test limits for each casing shoe. C B D SURFACE PRESS. TYPICAL PIT PLOT VOLUME PUMPED SHUT -IN -TIME [BBLS] (MIN) NOTES: Point "A" will have some variance until the system begins to pressure up. Point `B" is the leak off and is abbreviated LOT. Point "C" is known as the injection pressure and is usually dependent on rate. Point "D" is known as the fracture closure pressure and may not stabilize if permeable formations are exposed. 12/15/08 29 of 47 . II Chevron 0110/1 MidContinent /Alaska BU UNOCAL* Chevron North America 4%. Alaska Resources Exploration and Production Company 11111 n, T X 770 Hun, TX 77009 North Slope Alaska White Hills Prospect SHALLOW HAZARD ANALYSIS BLUEBUCK 6 -7 -9 CHEVRON ACREAGE ;E � nruy 1n-us " 4ii I , 1 7 0I ISLsND • F E7 t (n.+r — — � BIK i - -- � �IK 2AKAI.0 ��{,. 0 � i4 �`� • • � • �: 1,„,, 1,„,, P r •�HS"AR3 � ~ y ' - ✓� $Et''k�' - Y s 1 FI�t t i 1 !0 V 1 3 @P-C .41, e o r1•+,r r BP-P1 11 �s /( o 1! �Y' =� .1 1�,' " .. 110t� 3H fi A E U6NU A? EILEEN 5 t 7 ',''?L. RA1.G8 x .� 1 • it `C ► /�`J ?AL 1 � ' +iNU at @� S z46 ,,,BRAT +7 i t i 0 ,t/t "j,// "de —.- -- ° tt, 14- 15111 -16 �N Acz -of , BP-L -101 .--4 �aa� o C B OLVILLE i @PS 1 � PI}s RIWt w f � iV AK -- .. 18 @P !`100 . i z. ` "fi II ,, /t' WE 0 1 � 8 V1 t: - ' , � 4 Yr S i ([ , r1E 5111 B P Ifd 1 Y'' k UE 1 LMta NE �r v >�` R i KOOKPUK01 1A � 0 VSPJC693PbtE1LaEE1A2 2 ,0 — ' PK ' 1' ` v , ua� a I. / // - 4V AK031P -03111}5 @P-ROC K -01 BP 6 `141 . , 75e „ � 4r 1 � l ' r, SyC c °HEMI SPRINGS S' 1 1 �; r KUB41'�U 1$� RI V I SAK 04 - S ;PARK #1 ' U — 2C-3252L-229 KRU ST * 1 1 N I C/VINTER TRAILS 1 1 BUR• PARK *IA r 2L -31.. '$21 y9 AI �. a SAK 13 WINTER TRLS #3 PROPOSED OXBOW #t ` 307 " W°' 26`HEI'iS 2 -9 -t1 " OPOSED REIIOEZVOUS #2 - 3_4.'1 = HEI.II SPRINGS �` (' #3: � '.rlFt'ER -RAILS #2 a CIRQUE 12 ° / CIRQUE�.ICIROUE 2 RAV1K 1 T0OLIKFECERAL #2 MedAltamura -t t 1 I TOOLIK FED _RAL #° V ti RA ,- 1kedARamura-1J AKEC AL RUB "S -:+ E #1 1 C , K01 2P -44$ 49,1 ..SE0001A #1 - ��4 - 447 t .1 Ni d [ n NAR�VQ #, St fj- , r r MWTR S1 WOLFBUT'ON 22 -7-6 5.., - 'WOLFBU -TON 25.6 -9 PIPE '4i5 S -A -E #1 MAK el ` - Ill HEAVENL"1 R IZZLY ti ( €_s• Maluk #1 _BUSH FECER,L •l • 1I •INECIILLD ?1 NO .ECE r N A neth St#1 A- SUSIE U NI #1 \ I White Hills ii ` I- KILUKUNIT #1 E 12/15/08 30 of 47 9 • Chevron IMO UNOCAL Alaska Resources 11 10 1 Union Oil Company of California (UOCC), a wholly owned indirect subsidiary of Chevron Corporation currently has leased approximately 20 x 40 sq miles of acreage on the Central North Slope of Alaska (Fig 1). UOCC holds 70% and TOTAL holds 30% working interest in the field which is bounded by the National Petroleum Reserve of Alaska (NPRA) to the West, the Trans - Alaska Pipeline (TAPS) to the East, Kuparuk River and Prudhoe Bay Fields to the North and the Brooks Range Foothills to the South. STRATIGRAPHY & RESERVOIR OBJECTIVES Ma SW Gubik Fm. NE Z C ENOZOIC `, is _- ,0 v rwerySel 1ry ,i= 4d .-., —J IOU - R= TAI_ECJS .. -- ''� Hue Shale et _ _ �-- , mn ra z one) 0 = J JRASSI'_ 7 Kingak Shale - ill CO Z Shublik Fm. IX TRIASSIC n -- Z Sadferrsil W 245 C rear - ^� . PERMIAN II :1[r7j 286 W PENNSYLVANIAN 320 Lisburne Group W MISSISSIPPIAN C i j F.�rFr+t`Ot 6 1 cr f r . 1 IL , I 360 � l �-I -, l - L ; 1 . -. J r - Imo — Z MISSISSIPPIAN `moment - `- -t r IX < MEGASEQUENCES * Aliochthonous rock units Fig 2: White Hills Stratigraphy The Bluebuck 6 -7 -9 well will target reservoir objectives in the shallow Tertiary through Upper Cretaceous (Mastrictian) strata referred to as the Saganivriktok, Prince Creek, Ugnu and West Sak Formations bounded at the top by the permafrost and down to a total depth of approximately 5000 ft MD. Overall, the sequence records a regressive- transgressive cycle starting with the West Sak (Schrader Bluff) shallow marine prograding shelf sands, overlain by Ugnu fluvial - deltaic and then Non - marine Prince Creek and Sagavanirktok clastic strata. (From USGS Open -File Report 2005 -1182) 2 12/15/08 31 of 47 • • Chevron IWO UNOCAL. Alaska Resources 1 %0 PRINCE CREEK FORMATION Sagavanirktok Group and Prince Creek Formation The Bluebuck 6 -7 -9 well will spud in Tertiary generally upward- coarsening Sagavanirktok siltstones, fine to very-fine grained sandstones, interbedded bentonitic mudstones with minor lignite horizons, and gravels deposited under shallow marine to non - marine conditions. Below the Sagavanirktok Group are undifferentiated Prince Creek coarse clastic strata, comprised of gravels, coarse Iithic sands, lignites, and siltstones. The Prince Creek sandstones typically exhibit 8 -30% clay content, with porosities to 38% and permeabilities to several darcies. UGNU FORMATION Ugnu Sands The Early Paleocene Ugnu Formation consists of upper -fine to medium and coarse grained Iithic sandstones, siltstones, bentonitic shales, lignites, and some gravels deposited in a non - marine delta plain environment. The sandstones are poorly indurated to unconsolidated, with porosities exceeding 35% and to several darcies permeability. Heavy oil saturation is common 30 miles to the north in Kuparuk River, Milne Point, and Prudhoe Bay fields. WEST SAK FORMATION West Sak Sands The West Sak consists of a shallowing upward shallow marine sequence com prised of very fine- grained, single and amalgamated hummocky cross - stratified sandstone beds. The formation is typically characterized by fine to medium - grained, unconsolidated but well sorted sands interbedded with siltstones, mudstones, and coals. The West Sak sands were deposited in a shoreface to proximal shelf environment. Lower West Sak members were deposited in a lower shoreface to inner shelf setting by storm - generated waves and currents, both the upper and lower members showing good continuity both in the subsurface in areas with good control and in the outcrops to the southwest and south. The Bluebuck 6 -7 -9 well will TD at the base of the West Sak Formation at - approximately 5000 ft MD. 3 12/15/08 32 of 47 • Chevron 1%0111 UNOCAL Alaska Resourc 1 %. STRUCTURE N S Ravik P ermafrost boundary Toolik Dinictis Bluebuck ry Amp 41MINWW114- a,- . i " Schrader BluffA v, •- S y t Schrader Bluff 8 s V een V r.}#" #n. — a. m w "Y y — w.yt,: a. • •,.r i. a. hw4r' a +W.na.r r' b ..�, F:.w .'au..MM R >°� �Y Mwq"'ur nt.— r�+.M.'.".4 �M1AmwuYSe4•.'yyiyy vn q Fig 3: Pre -stack time migrated White Hills 2D seismic line (WH -07 -110); strike direction, Line #1 on base map The regional structure on the top of the West Sak in the vicinity of the Bluebuck 6 -7 -9 well is a monocline that strikes north -south and dips eastward at between 1° and 4 ° . The reservoir occurs at relatively shallow depths within the West Sak core area, with the top of the "D" sand being located at between -2100 and - -2500 feet subsea. To the west of the core area the top of the West Sak shallows until it intersects the base of the permafrost at about 1,000 feet subsea to the west of Bluebuck 6 -7 -9 . The Bluebuck structural area consists of a Northwest- Southeast trending closure with stratigraphic and dip related traps. The structure is thought to have both permafrost and temperature seals.. The structure shows distinctive depositional fairways for sand accumulation based on 2D seismic, surface geology, and magnetic data. The structure sub - outcrops at certain places throughout the field allowing regional correlation between the source rock and target formations. The primary reservoir objectives include gas in the Prince Creek, Ugnu and West Sak formations. 4 12/15/08 33 of 47 • • Chevron UNOCAL , NINO Alaska Resources 1 GEOPHYSICAL DATA QUALITY J1F'4(.W -11' 'I _ - - - - -� IyW.L�+u41k.F.0LI 0 ..`.. >t LON ISLAND' F_s7 N , j -_.. KALUBIK t__ �' .a 1.,.5* • HSTAR3 -� - ', - . . W BI I{ .� ,: ' l. B- 1 P6t � At li" t 41t01,0 1 `� 1�� A.. k r , ftTA 1 I O 11_•.1 ° 9p' -CASC fie _,L a 71007"•----_, l ,BP-P11-11 �FL� � �� `�t�_w � ''Y } a , ^ E U GNU 6� t-NWE2-010 EILEEN ST ,,,, 6.07,- '- 1:* •J�1 OS )K � V 1 , r` t , ' IABP •A ' - 0NU111 l8. ,1 BRIT ,7 1 .__ o B y„ i RD k., . .. ` COLVILLE 1 v s�w�c 1H 1G1H 18 - 8 1018p S tfi ' PI ' 4. ` �r'' �h'` . v ES' SAK2 48 #11y�, " 8 1 ABP P� 100 BP {HEV11, + { �2 t 4, -G : . �� ` ' � , 1 I { i'' r -0 -J( lr - - . 1 . H1 .1 n11tltIl. - rR R E 42-14 _ ,'` :L LLE R 1 = ' , 1�[ 14 � ./D_ MD- 4 13P St E ILE E14 { f ; s-; ` M 41 �._ ,� ri . <.r -11 K 61 fi 4 e 1 f -0 14J 1CM SAX 6 0 4P ` R1-9-s l':• t 1 r j // ' ` W w1K03 J -09 ,BP- ROCK -010 BP -GET -`0 -01 4-'"'3 G I� 7 1 4 91EI,1ISPRIIIGS5 - 1 S, S*CAL i ' A1rU R IV 111'W SAK 0 �� 0 '4V SAX _ '.+ SPARK #1 r?, 41 , 2L 32sa 323 KRU ST #1W SAK 10yWINTER TRAILS 1 4 BURGLIII 12 5SPARK #14 * i : -. 21 , VJ SAK 13 WINTER TRAILS #3 WE: PROPOSED 0 ' • W # 1 SAK 20 WS AK 26 ° 11EI.IISTATE 3 -9-11 1. ,,ALE( ROPOSEO RE ND E S#2 3 . 1 _ 34s 21/$451147 HE!!! SPRINGS F *3 .'TINTER TRAILS #2 CIRQUE 2 =- 1 T00 CIRQUE RAIAKST1 J asked Altamura -2 -00 LI K FEDERAL #2 _.; TOOLIKFt- ERAL #? Ur P., r,KLltI "� I KILLIK 01 RUB ' S -ATE #1 �- / 2P- �482Ps51 SEQUOI.�. #1 2P- 441 q 2P —t7 �, $ 1 +,'a R 141 t j' II:,R* II ad Data A vv/FR S 1 . 0LFBU -T011 32 -74 WOLFBUTTOII 25-6-9 . 9 .„ 1 3 11 0 E }` E STA - E *1 +s EK'AK #1 GR22LY -1 0 HE+ E NLY 1 s''zt�ii t k 416 r BUSH FEDERAL, - *1 1' 11- 111ELHILL CT1 -NO' °•,EDE; Amethyst St#1 SUSIE UNrl11,I, 0 N z 111 r rKILLIKUMI? #1 E C UBIK t Fig 4: Approximate mapped extent of poor quality 2D seismic data Chevron has an extensive grid of 2D spec data in addition to 9 proprietary 2D lines acquired in 2007 within the White Hills area and north bound through our working interest fields of Kuparuk and Prudhoe Bay. There are no 3D seismic volumes which entirely cover the White Hills area. Currently, our key 2D lines through the White Hills prospective area have undergone several stages of reprocessing. In 2002, GeoTrace produced a pre - stack migration data set which was later reprocessed by Unocal in 2005 to attempt to apply newer noise reduction techniques. However, after the merger with Chevron, and high grading of the White Hills prospective area, it was decided to try and increase the signal to noise ratio of the data further by applying Chevron's 5 12/15/08 34 of 47 • 1 Chevron kV UNOCAL 76 Alaska Resources proprietary noise attenuation technique. This was in effort to enhance the image in a large swath of low frequency, poor quality data (Fig 4). This poor data zone is coincident with a large portion of the Chevron acreage on the Central North Slope. Consequently, Chevron decided to acquire 9 lines of (see below) of proprietary 2D seismic in 2007 to better resolve the stratigraphy, structure, identify potential shallow hazards, and aid in well placement. 2007 DATA ACQUISITION In the winter of 2007 (Jan 5 -Feb 11) nine 2D lines, approximately 170 sq miles as outlined on Fig 5, were acquired over the White Hills area by CGGVeritas. The survey was designed to tie the current proposed well locations in a North -West -- South -East strike direction with two long North — South tie lines. Every attempt was made to avoid water bodies whenever possible due to the statics issues that ice lakes induce on seismic data. The drilling program for the White Hills area was developed from both geologic and geophysical data sets. Regional, reprocessed, and the 2007 White Hills 2D were evaluated to assess the potential for any shallow hazards. However, in general, the 2D seismic data quality is not adequate in some of the proposed well locations to fully determine the potential for shallow hazards. fr s Y - f «t " _ te t , . 7 r ` �y it - `* 1 4— . . - ;,. Z if _ . s . Fig 5: Chevron 2007 2D sei smic acquisition lines; acquired by CGG Veritas 6 12/15/08 35 of 47 • • Chevron 1110 UNOCAL rr Alaska Resources M NO I POTENTIAL SHALLOW HAZARDS 7 f 1_ t 151 00' 150 0 00' i 4 149 148'00' 1 FREE GAS 0 4 lon - 0 3 rtr MI iDIN7 ■ „ --, I OIL 1 — ' ;o Tarn b - �_ 4 1 ��' Accumulation J �� _ , - L /0q} y - i 1. r �1 i I CIN. FlEL� r • • BAY j < IA* � 1 Eileen ' 1 fg 1. � 4 Accumulation in” 1r RAT ,_ _ ti 1 . r d - - - -, wa R �� t GA•a White Hills , !`' y - 1 H DATE Area - /, , - Keno'_ I , - --, - - _ I Fig 6: Alaska North Slope Gas Hydrate Energy Resources, USGS Open File Report 2004 -1454; by Timothy Collett Permafrost is expected down to 1200 ft below the surface thickening northbound. There is the possibility that gas hydrates could be present although not expected. The current known accumulations of Gas Hydrates (Fig 6) do no appear to be present in the White Hills prospective area. The 2D pre -stack time migration line, tying the Cirque wells (Fig 7a, b), shows a high amplitude reflector at the base of permafrost and bounded by faults. We suspect that this well blow out is possibly due to shallow gas. 7 12/15/08 36 of 47 TI - - ari "fr - - c i a ' .. ._ tI " cQ ; . tD 7. rt j g .• ki t \ Nil '4 -11 #1411 il * , * C7 1 ,4 ) 14 4 1 Oo 1 i CD a . j. ' tit si �«. r car • �° „ .- .. • r li mo► ;t.�. , r CC # - -, :�, •• , F t �. .�.. ...... .�. ..fir f. - ire . .'s . tt 4 4 • i l 11 ' ' tp. I ,- ifr. P ' .01 ed � a 1 r 4? II * I t 1 t il li tit ' i t ' . f - 446% ,. or. , i '.- .. , l Kt • * 0 O .', *. X ' f 4 ,411 ' f i — 0. Co . , .....„ ,,., „.. . , 4 7 3 , 4 .. .4 � I O aka . ' . ''''''''' � tr , CD ,:',.'„' ..-. � r . ,p : w ;104 4 .,,. ,„-., ,„.... 4 ' kc <fit . ( * ' , ► . 1 , - - ` o II �rws " • v WAS, ` 9 z r a . i fi • . ' i ._ ., N co / • • Chevron ft01 UNOCAL % Alaska Resources 1 %0 Bluebuck 6 -7 -9 is not on any of 2D lines. Figure 8 show the base map of 2D lines that are close to the well. The closest 2D line is line #1 which is about 1773 ft East of Bluebuck. Figure 9a shows line #1. There are some high amplitude events above permafrost at the well location. Figure 9b shows line #2, a north -south 2D line on the west side of the well location. Distance between Bluebuck and this line is 2820 ft. There is not significant high amplitude event at the well location. Figure 9c shows line #3, a west -east 2D line on the north side of Bluebuck. Projected distance is 3390 ft. On this line, there are some high amplitude events beneath permafrost depth. Figure 9d shows line #4, a west -east 2D line on the south side of Bluebuck. Projected distance is 2937 ft. On this line, there is one high amplitude event beneath permafrost. Out of 4 lines, 3 of them tell us there is some potential that this well may encounter some shallow gas when exit permafrost zone. -.4114 4111111114„ 41 Bluebuck ._, r. 1 1,4 Ipor 4,„ .,.? _____ ice@ „¢..... C , . _ _-- Figure 8 Base map of seismic 2D lines that are close to Bulebuck. 9 12/15/08 38 of 47 0 c is i ' t t � # !". `} 3; i ' ' i� ' 'l , 1161, 4, V: III : litY t 1.1 :: fi: 4 , e, , 1 a + tea � : fit `1 ' 1 T , ,- - '%,,,,',,-.) ,',-, 1 I ..--,', t-‘ ti s.) \t. III it , ' - '— 1 ' \ iiit' '''' '''''', ' "Iii. kii:- 1 ' i O'' 1: — tl k 0 c° '' ''' . i ( 11 '4 it, i ,,,„1 .. lit, • : t, ,‘ .: a,t‘ i , , „... _ .. - ..- . . . ' • 1 ( ,. ... . , , , ,,,,,. .k.,,, „ s . ! I ,., ,, 1, - , ..11.,, :, . % 17 , 1 . , 1. ,1, ,,,, 1 vli , k i i t ,Tit i! : I. '01.'1/141 il ,... ..,_, 1 l i _I '. �1 1' 1 a I. + i. ►s _ 1 1 . L ,, , k A v t a R. • th ,., .-,'- ...'t,''.• . I.: ' --` •i.$ 'i ' cp 1J e t z . 1 , 1 x,1,1 • o as 1 a S , , ,: { z , 111 i ii. i � o Q ,� tttlro ' } `kl ii c =1/ z i_ , • 0 Chevron III . UNOCALiO Alaska Resources %O N S sNIIIIMIV Toolik Miacis 13 -8- Bluebuck Narvaq 1 3 Permafros 8 t .a f • • .w • a . — �+ , . �, , . , a µ ! ' YF s Yip ` . .PI / • 4. * V «.Y , 4 Schrader Bluff A J , , • .• a ' ,. ff ! //�� gyp fl '' "Schrader Bluff B ' Figure 9b, Seismic 2D line #2. 11 12/15/08 40 of 47 . • Chevron 41110 UNOCALO Alaska Resources I N. W ____ E I Rub State Miacis ` Bluebuck Permafrost 1 1 High amplitudes .`; ' ''i S ' if+x" 4 4 a Schrader Bluff A .. .•.... : . +, t w 1 t r I Schrader Bluff B -a, Schrader Bluff C '�" — ' '"a- Figure 9c, Seismic 2D line #3. 12 12/15/08 41 of 47 • • Chevron UNOCAL i6 Alaska Resources 1 %. W E Bluebuck Edmontosaurus I High amplitudes 17-9- Prince Creek � _.__ ' _ ,. �.. 4:- , . ,.. ,,, x'9 . : h ie ; * » *} - *+,i. ..-•,„- „.� y c �� . Schrader Bluff A "-• s , �'. . ' :: . r ti d ` w�, Schrader Bluff B 1 a,. r . ' ,, sires ' a e s k a , o c . + a Figure 9d, Seismic 2D line #4. 1 13 12/15/08 42 of 47 i I Chevron 101101 UNOCAL Alaska Resources %. GEO- PRESSURE / VELOCITY ANALYSIS Checkshot and VSP data is sparse in the White Hills area. However, there is sufficient data to generate a velocity field (Fig. 10) across the region which indicates that we should not encounter any velocity anomalies. The permafrost zone has higher velocities as expected and the transition beneath the frozen, lower velocity base is quite distinctive. CHECKSHOTS olitutton=0f Time vs Depth are, .: 0 0 0 0 O 1400 V o 0 0 .'_oo —0-- 0 . y 1000 C' \ a': arq N ' QC' 800 ,0 0 Q G 0 0 0 0 O o o O o o O o O o O O 0 0 0 8 8 8 o e o 0 0 o O o o O 8 O o o O to O K O i!1 O N o VS o h O N O N O N O h O VS ••• -A.lethystS1 -] ND Depth (ft) below T -D datum Fig. 10 Checkshot and VSP Velocity Field across the White Hills and Surrounding Areas 14 12/15/08 43 of 47 i • Chevron 14V0 UNOCAL Alaska Resources I S ° The Ruby state is the most proximal checkshot to the proposed Bluebuck 6 -7 -9 well. We expect similar velocities as shown in (Fig 11) on the Interval Velocity (Vint) vs Depth plot; Interval Transit Time (ITT) vs Depth. The plots show, as expected, faster velocities through permafrost and slower velocities through the zone of interest below the base of permafrost. From the velocity analysis, we expect a normally pressured regime through the Prince Creek, Ugnu, West Sak formations, and Colville zone. Stela 1 Dow Depth 9- Qleckshots 13 Mks 1 &QNdI111015 11- (llacksll0ta I, lII +.0 f:r2:v15, 01k• Mnt. licks 0161111 Mk: lime (2 gray Travel) W) )38D) us/It Ills 45 picks met sec ime Feel 200 150 100 50 0 5000 10000 15000 2 /110/ 5 displayed .0 50 60 70 80 90 100 110 120 130 1.111 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.3 1.6 1.8 2.0 Oi CS 50;600 - - -- . • Base — Inn Permafrost 000 50; . � Top lime !k A 1./10 _ - 14 • 250 I /D0 3DO'lun/ u00U 350•2000 Casing point, 00 - 220O 5chra/er HMI A Al • nu; 5500 2800 / • Sl: header Bluff s 650•3200 - - - - -_ 0n; - 50 •36011 7 • au nn lvn: or, 1`.01.011 I•0 - . or1 Fig 11. Ruby state 1: Time vs Depth, Vint vs Depth, ITT vs Depth 15 12/15/08 44 of 47 . I Chevron IWO UNOCAL 76 Alaska Resources MUD WEIGHT & SHALE RESISTIVITY ANALYSIS 3 key wells which delineate the White Hills area and Bluebuck 6 -7 -9 prospect are the Malguk #1, Wolfbutton 25 -6 -9, and Ruby State #1. These wells were used in addition to the checkshot and VSP data to examine the possibility of pressure and velocity anomalies. Mud Weights (MW) in ppg were plotted vs. depth for the 3 key wells (Fig 10). The graphs indicate that drilling was balanced through our zone of interest where MW increased with depth. The Malguk well shows an anomaly at 2977 ft which coincides with top of the West Sak pay interval; the well was cased at this point. Furthermore, in the 2088 drilling season, we did not encounter any anomalies. Malguk #1 Rshale ohm -m 100 10 1 0 2000 MW Rsh ( 13 -3/8" A2977' 4000 Fig 10. Mudweight and Shale Resistivity versus Measured Depth plot for the Malguk #1 well. Mudweights were increased from 6000 o 1200' to casing point due to oil and gas shows in the mudstream. Note that the shale resistivity trend indicates a normally pressured section down to approximately 10,000 feet, where a 8000 higher pressured regime is indicated. • 10000 - - 12000 8.8 9 9.2 9.4 9.6 9.8 10 10.2 10.4 Mudweight ppg 16 12/15/08 45 of 47 • • Chevron UNOCALre Alaska Resources Wolfbutton #25 -6 -9 Rshale ohm -m 100.00 10.00 1.00 0.00 2000.00 Rsh 4000.00 Fig 10. Mudweight and Shale Resistivity versus Measured Depth plot for the Wolfbutton #25 -6 -9 well. 6000.00 I The shale resistivity trend indicates a normally pressured section at least MW 4 down to 8.000 feet. 8000.00 10000.00 12000.00 8.00 8.50 9.00 9.50 10.00 10.50 11.00 Mudweight ppg 17 12/15/08 46 of 47 • • Chevron 111110 UNOCAL. Alaska Resources SUMMARY In conclusion, there are some high amplitude events around depth of permafrost (1000 ft) on 2D lines. The closest 2D is 1773 ft away from the well location of Bluebuck. Those high amplitude events may represent shallow gas. Extra caution should be taken when drill out permafrost zone. Prepared by: Dave Buthman Qiang Sun Geologist / Technical Team Lead Exploration Geophysicist Alaska New Ventures Team Alaska New Ventures Team MidContinent / Alaska BU MidContinent / Alaska BU (281) 561-3401 (281) 561-4958 buthbdb @chevron.com moniquevelasauez 18 12/15/08 47 of 47 Page 1 of 1 Maunder, Thomas E (DOA) From: Maunder, Thomas E (DOA) Sent: Monday, December 22, 2008 4:42 PM To: 'Quay, Walter [ASRC]' Cc: Bonnett, Nigel (Nigel.Bonnett) Subject: RE: Bluebuck Thanks Walter, our conversation and this message answers my question. Tom From: Quay, Walter [ASRC] [mailto:WQuay @chevron.com] Sent: Monday, December 22, 2008 4 :40 PM To: Maunder, Thomas E (DOA) Cc: Bonnett, Nigel (Nigel.Bonnett) Subject: RE: Bluebuck Tom, I believe the calculations are correct, however, the diagram of the cement was not as clear as it should be. I am planning on P &Aing this well, so will have the inside of the 4 -1/2" tubing cemented from 2 joints below the liner hanger to TD, back to the surface shoe in the 8 -1/2" X 4 -1/2" annulus (with 40% excess), then the surface casing /liner overlap + 100' above the liner hanger with the DP removed. Attached is a new wellbore diagram showing the landing collar and cement in the tubing. Walter Quay WQuay@chevron.com Office: 907 - 263 -7812 Cell: 907- 230 -3961 From: Maunder, Thomas E (DOA) [mailto:tom.maunder @alaska.gov] Sent: Monday, December 22, 2008 11:38 AM To: Quay, Walter [ASRC] Subject: Bluebuck Walter, I am reviewing the permit for this well. Would you check the cement volume for the 4 -1/2" liner? I haven't gotten into all the attachments to the permit, however if you are cementing to the liner top, the sack count and ultimate slurry volume appears to be — 70% XS rather than the 40% stated. There may be other items, but I wanted to get this one to you. Tom Maunder, PE AOGCC 12/22/2008 • Bluebuck 6 -7 -9 DIR 1 LWD FORM DEPTH- RKB(21') Est EL GL 400' HOLE CASING MUD INFO MWD MD TVD TVD DEPTH -RKB 21 SIZE SPECS Cement Info INFO 0' 0' 400 111 I 16" 851b/ft, L -80 16" Conductor 185' 185' 215' N/A N/A ei WD /GR /RES /Soni . _ 4.4.4 tto Surface Csq 9 -5/8" Lead Slurry 40.0 Ibs/ft 266 Bbls, 361 sx Welibore Stability L -80, BTC -M 10.7 ppg Lost Circulation ID. = 8.835" 4.15 ft3 /sx Hole Cleaning *hi- 4141 Int. Yield 5750 psi Casing Sections ioi S ki. Coll 3090 psi Casing Wear Base PF 1,423' 1,423' - 1,002' '<`` Top of Tail Cement Prince Creek A 1,589' 1,589' -1,168 . i: Tail . 48 Bbls, 230 sx Ili ill 15.8 ppg Top of Liner Hanger 1.16 ft3 /sx < ' i ?'; 1,800' 1,800' -1,379' :; :i: 4 -1/2" Landing Collar 1 ,830' 1860 9.0 -10.0 ppg Water Based Mud - 60 ° F Wat Ba 1 1 21/4" - / " Casing 1 950' 1 950 529' € «_!< >"?' <'> 958 g , I LWD /GR/RES /EcoScop> <<< Inter. Casing Lead Slum, Welibore Stability 4-1/2" 279 Bbls, 561 sx Lost Circulation 12.6 # /ft 11.5 ppg Hole Cleaning L- 80,IBT ID. = 3.958 2.8 ft3 /sx Torque & Drag A 575' 2 575' -2 154' nt. Yield 8430 psi Schrader Bluff 2 p Collapse Casing Sections 7500 psi 1' 3 1' - , 840' Bluff B 3 26 26 Schrader Schrader Bluff C 4,247' 4,247' -3,826' RCI Sampling a - - ' _ _ ' 4 57 8 112 " 85 F i r 5,000' 5 000 9 4 -1 /2 L ne 5 00 12/22/2008 • • TRANSMITTAL LETTER CHECKLIST (/ WELL NAME 811...tebac---4 (� PTD # Development Service Exploratory Stratigraphic Test Non- Conventional Well FIELD: E " V (cr-v4Y alU POOL: Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD -ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. , API No. 50- - - . API number are between 60 -69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(0, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non - Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1/11/2008 WELL PERMIT CHECKLIST Field & Pool Well Name: BLUEBUCK 6 -7 -9 Program EXP Well bore seg ❑ PTD#: 2082010 Company UNION OIL CO OF CALIFORNIA Initial Class/Type EXP / PEND GeoArea 890 Unit On /Off Shore On Annular Disposal ❑ Administration 1 Permit fee attached NA 2 Lease number appropriate No Corrected error on 10 -407: proper lease number is AOL. 389182 3 Unique well name and number Yes Unique 4 Well located in a defined pool No Exploratory well 5 Well located proper distance from drilling unit boundary Yes Conforms to statewide spacing rules: well will be more than 1500' from nearest property line. 6 Well located proper distance from other wells Yes Nearest well is Narvaq 1, which lies 3 -1/2 miles to SW 7 Sufficient acreage_available in drilling unit Yes 8 If deviated, is wellbore plet_included NA Vertical well 9 Operator only affected party Yes Unocal has 70% working interest ownership (WLO) and Total E &P has 30% WIO in lease ADL 389182 10 Operator has_appropriate bond in force Yes 086810 3515406 BOM 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrativ_e_approval Yes SFD 12/19/2008 13 Can permit be approved before 15 -day wait Yes 14 Well located within area and_strata authorized by_ Injection Order # (put IO# in comments) (For NA 15 All wells within 1/4_ mile area of review identified (For service well only) NA 16 Pre- produced injector duration of pre production less than 3 months_ (For service well only) NA 17 Nonconven, gas_conforms to A$31,05.03Q(i.1.A)4.2.A -D) NA 18 Conductor string_provided Yes Engineering 19 Surface casing protects all known USDWs NA No subsurface water sources in area. Surface casing —500' below permafrost. 20 CMT_ v_ol adequate to circulate_on conductor & surf csg Yes 21 CMT v_ol adequate to tie -in long string to surf csg Yes 22 CMT will cover_all known_ productive horizons Yes 23 Casing designs adequate for C, T B &_permafrost Yes 24 Adequate tankage_or reserve pit Yes Rig equipped with steel pits. No reserve pit planned. All waste to approved disposal well(s). 25 If a_ re- drill, has_a 10-403 for abandonment been approved NA 26 Adequate wellbore separation_proposed Yes Nearest well — 3 -1/2 miles distant. 27 lfdivetter required, does it meet regulations Yes 12 -1/4" hole planned. Rig equipped with 12 "diverter tine. This has been approved previously. Appr Date 28 Drilling fluid program schematic_& equip list adequate Yes Maximum expected formation pressure 8.4 EMW. MW planned up 9.4 ppg or as needed. TEM 12/22/2008 29 BOPEs,_do theymeet reg ulation Yes A.-- 30 BOPE_press rating appropriate; test to_(put prig in comments) Yes MASP calculated_ at 1022 psi, 2500psiBOP_ testpla 31 Choke_ manifold complies w /API_ RP -53 May 8 4) Yes • 32 Work will occur without operation shutdown Yes 33 is presence of H28 gas probable No H2S has not been reported in offset wells. Mud should preclude H2S on rig. Rig has sensors and alarms. 34 Mechanical_condition of wells within AOR verified (For service well only) NA 35 Permit can be issued w/o hydrogen_ sulfide measures No Remote exploratory well Geology 36 Data_presented on potential overpressure zones Yes Expected pressuregradient_is 8.5 ppg EMW; well will be drilled with 8.5- 9.5 ppg mud. Well will be mudiogged Appr Date 37 Seismic analysis of shallow gas_z_ones Yes Shallow hazard survey_ indicates potential for shallow _gas at _base ofpermafrost. SFD 12/19/2008 38 Seabed _condition survey (if off- shore) NA Hydrates may be encountered; mitigation measures discussed on p. 10, 39 Contact name /phone for weekiy_progress reports [exploratory only] Yes Tim Brandenburg, 907 - 263 -7657 Geologic Engineering Commissioner: Date: Commissioner: Date C,► per Date • • Well History File APPENDX Info' n ration of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. Chin %O FINAL WELL REPORT MUDLOGGING DATA BLUEBUCK 6 -7 -9 2 Y 3: ' P l 1 ■ . . r Ira. ♦t k , , •1. .. __- ...III e ( I s . Provided by: IA E POCH Approved by' Dave Buthman Compiled Larry ch James Res Fora Date' by' March 9, 2009 das Ob -3C) Distribution. Chevron Bluebuck 6 -7 -9 • TABLE OF CONTENTS 1 MUDLOGGING EQUIPMENT & CREW 3 1.1 Equipment Summary 3 1.2 Crew 3 2 WELL DETAILS 4 2.1 Well Summary 4 2.2 Hole Data 4 3 GEOLOGICAL DATA 5 3.1 Mud Log Summary 5 3.2 Connection Gas Summary 12 3.3 Trip/Wiper Gas Summary 12 3.4 Iso -Tube Gas Samples 12 3.5 Sampling Program / Sample Dispatch 13 4 DRILLING DATA 14 4.1 Daily Activity Summary 14 4.2 Survey Data 18 4.3 Bit Record 19 4.4 Mud Record 20 5 DAILY REPORTS 22 Enclosures 2 "/100' Formation Log 2 "/100' Gas Ratio Log • 2 "/100' LWD Combo Log 2 "/100' QFT II Combo Log 2 "/100' Drilling Dynamics Log • PI EPOCH 2 Chevron Bluebuck 6 -7 -9 • 1 MUDLOGGING EQUIPMENT & CREW 1.1 Equipment Summary Parameter Equipment Type / Position Total Comments Downtime Casing Pressure Cable and 0- 10,0001502 transducer 0 for BOP tests only. Computer — Drill Floor Monitor Azonics 0 Computer — Pit Monitor Azonics 0 Computer for Company Man Rigwatch Remote (HP Compaq) 0 Computer for Mud Engineer Rigwatch Remote (HP Compaq) 0 Computer for Toolpusher Rigwatch Remote (HP Compaq) 0 Computers for Mudloggers (3) Data editing, Rigwatch Master, and 0 Rigwatch Remote (all HP Compaq) QGM Agitator (Mounted in possum belly) g as Ditch Flame ionization total gas & 0 chromatography. Hook Load / Weight on bit Drilling Line Sensor on Rig Floor 0 Mud Flow In Derived from Strokes /Minute and 0 Pump Output Incorrect data Mud Flow Out Flow line Sensor (paddle + sonic) 1.5 location in Rigwatch Pit Volumes, Pit Gain /Loss 10 radar pit sensors 0 • Pump Pressure Standpipe Transducer 0 Pump stroke counters (2) 2 proximity sensors 0 Rate of penetration Crown Fast Sheave proximity 0 sensors RPM PLC feed 0 Torque PLC feed 0 Mud Temperature In /Out Sensors in pits to PLC Temp out. waiting for parts. Wits Out (LWD Data) Rigwatch Master Computer to LWD 0 Computer 1.2 Crew Unit Type • Arctic Unit Number : ML056 Mudloggers Years Days Sample Catchers Years Days Technician Days Larry Resch 7 30/30 Ryan Boothe .7 10/30 Howard Lamp 5 James Foradas 1 21/30 Sameer Baral .5 10/30 Ricky 7 Harry Bleys 5 8/30 Years experience as Mudlogger '2 Days at wellsite between rig up and rig down of logging unit. • El EPOCH 3 Chevron a Bluebuck 6 -7 -9 • 2 WELL DETAILS 2.1 Well Summary Well: Bluebuck 6 -7 -9 API Index #: 50- 223 - 20024 -00 Field: White Hills Project Surface Co- Ordinates: 1 Se 197 6, T7 N, F Sec. UM R9 E UM Borough: North Slope Primary Targets: Multiple State: Alaska Primary Target Depth: Multiple Nabors 106E /Arctic/ Rig Name / Type: TD Depth: 4500'MD, Double Spud Date: February 18, 2009 Ground Elevation: 400.0' MSL TD Date: February 24, 2009 KB Elevation: 420.5' MSL Days Drilling: 7 TD Formation: Schrader Bluff C Completion Status: Hang 4 -1/2" liner; P & A Days Evaluating: 11 Classification: Exploration 2.2 Hole Data Maximum Mud Shoe Depth Hole Depth Dev. Casing/ FIT Section MD TVD Formation Weight ( ° Inc) Liner MD TVD (ppg) (ft) (ft) (ppg) (ft) (ft) • Conductor -- -- Permafrost - - 16" 178 178 N/A 12 %4 1930 1930.38 Prince Creek 9.2 0.24 9 -5/8" 1916 1916 14.8 8'/" 4500 4499.88 Schrader Bluff C 9.25 0.45 4 -1/2" 4458 4458 none • PI EPOCH 4 Chevron IWO Bluebuck 6 -7 -9 3 GEOLOGICAL DATA 3.1 Mud Log Summary Surface Hole: 183 feet to 1930 feet Drill Rate (ft/hr Total Gas (units) Maximum Minimum Average Maximum Minimum Average 264 19.5 169.8 0 0 0 ' = of brown and yellow brown; SAND, CONGLOMERATES (153 -180 - light grayish white overall, with hues o b y , 9 9 Y angular to sub angular to occasional subrounded cuttings; dominantly quartz at 80% with woody lithics, claystones with pyrites and some tuffaceous materials included at 20% reversing to claystone 80% to sand and conglomerates at 20% at the lower end of this section; unconsolidated sands lower fine to upper medium i i low maturity; loose unconsolidated sands poorly sorted low sphericity exh b t o w at uri ; ty, con lomerates with 4 to 5 conglomerates in length are high sphericity, well rounded, well sorted exhibit high maturity; no gas. CLAYSTONE, TUFFACEOUS CLAYSTONE (180 - 250') = gray color overall with loose unconsolidated sands and conglomerates entrained; soft clotted malleable claystone with tuffaceous volcanic ash and glass; highly adhesive highly cohesive; hydrates slowly; water released when agitated; no gas. SAND /CONGLOMERATIC SAND (280 -390') = unconsolidated; upper medium to very coarse grain and beyond; angular with low to poor sphericity; fair to moderate sorting in part; no evidence of matrix or cementation properties; also appears as very coarse to small pebbles; well rounded to sub rounded, often with fresh fractured surfaces; good to moderate sphericity; textural maturity varies from poor to slightly better as interval appears to exhibit upward fining; translucent, milky white to light grayish white, occasionally glass -like • transparent quartz dominates with significant medium light gray to dark gray to trace mafics; minor vari- colored lithics include light and dark yellowish brown and occasional green and bluish green lithics; trace very earthy carbonaceous material; NSOFC. PEBBLE CONGLOMERATE /CONGLOMERATIC SAND (390 -480') = unconsolidated; sample at shakers include dominate 5 -10mm well rounded pebbles with very good sphericity; associated sand is upper medium to very coarse grain; angular to rarely very slightly sub angular; fair to moderate sorting at best; no evidence consolidation, matrix component or cementation properties; no clays evident at shaker; sand is dominantly white, milky white to grayish white quartz with abundant light gray to dark gray and trace grayish black mafics; coarse material and pebbles are primarily darker grays and yellowish brown; pebbles are predominately but not entirely monolithic; pitted and micro- fractured surfaces visible on larger grains; NSOFC. SAND, CONGLOMERATE SAND, PEBBLES (480 -580') = light gray with slight black hues overall; unconsolidated sand poorly sorted from upper very fine to upper coarse; angular to subangular to trace of subrounded grains; sphericity low exhibiting low maturity; larger conglomeratic sands and pebbles ranging from 3 mm to 30 mm; colors ranging from dark gray with blue hues in shales, to light grayish white, light yellow with brown hues in quartz grains, light gray in siltstones, and greenstone throughout with overall subrounded to rounded well sorted grains; light grayish claystone in lower sample at 580 ft; gas background low. SAND, CONGLOMERATE SAND (580 -670') = light gray with slight green hues overall; unconsolidated sands ranging from upper very fine to very coarse; angular to subangular poor sorting with low sphericity exhibiting low maturity; dominantly quartz grains showing little weathering as surface abrasions of frosting or etching; black carbonaceous materials, tr. lithic and chert grains, with some greenstone throughout; conglomeratic sands range in size from 2 mm to 3 mm; fair sorting with high sphericity and subrounded to rounded grains exhibiting high maturity; trace claystone with volcanics entrained in unconsolidated sands; gas background very low. • El EPOCH 5 f Chevron I WO Bluebuck 6 -7 -9 SAND, CONGLOMERATE SAND (670 -720') = light grayish white with slight brown yellow green hues overall; angular to subangular well sorted grains; low to fair sphericity exhibiting low to moderate textural maturity; moderate visual porosity or permeability; mostly quartz at 70 - 80 % with greenstone, shale, siltstone, black carbonaceous materials and black coaly cuttings at 20 %; conglomeratic sands beginning to pinch out at 10% overall; subangular to subrounded with weathered smooth sides and fair sorting; mix of shales quartz and trace black coaly materials, trace cherts; gas background low. SAND, CONGLOMERATE SAND (720 -840') = light grayish white with yellow and green hues overall; predominantly 80% unconsolidated quartz sands of lower fine to lower very coarse accompanied with 20% of shales, chert, claystone, coaly black carbonaceous lithics, and greenstone possibly chlorite; fair sorting; low sphericity; angular to subangular exhibiting low textural maturity; larger conglomerates range in size to 2 mm; conglomerates are dominantly quartz and shale with trace black lithics of well sorted subangular to subrounded with fair sphericity exhibiting high textural maturity; low gas background. SAND, CONGLOMERATE SAND (840 -960') = light gray with white and red overall hues; angular to subangular to occasionally subrounded grains; well sorted; low to moderate sphericity; low to moderate textural maturity; some evidence of surface abrasions of etching, frosting and conchoidal bursting; high visual porosity and permeability; quartz dominate at 80% with shale, greenstone, claystone and trace of black lithic fragments; conglomeratic sands slowly pinching out dominantly quartz, shales and some trace siltstones with trace bright iron rich reddish oxidized cuttings, and trace mafic rocks of dark iron and magnesium -rich cuttings; few surface abrasions with mostly smooth weathered surfaces; subrounded to rounded; well sorted with high sphericity and high textural maturity; gas background very low. SAND, CONGLOMERATE SAND (960- 1020') = light grayish white with reddish and green hues; dominantly quartz sands; quartz at 80 - 90 % with shale and trace greenstone and cherts at 10 %; quartz translucent to light brown orange to yellow colors to grayish white opaque; unconsolidated sands are subangular to subrounded moderate sorted grains; sphericity fair to moderate with a fair to moderate textural maturity; conglomerates shales and quartz and some trace dark lithics are well sorted subrounded to rounded with high sphericity exhibiting fair to high textural maturity; background gas low. SAND, CONGLOMERATE (1020- 1116') = light grayish white with green hues over all color; unconsolidated dominantly quartz grains at 60 - 70 % and shale, claystone, pyrites, black carbonaceous lithic fragments and coaly fragments; subangular to subrounded well sorted with moderate sphericity exhibiting moderate textural maturity; conglomerates exhibit higher maturity; gas low. SAND, CONGLOMERATE SAND (1116- 1200') = light gray with yellow and light black hues; subangular to subrounded grains; poorly sorted with lower fine to lower coarse grains; medium to fair sphericity exhibits lower textural maturity; some surface abrasions of etching and frosting; fair visual porosity and permeability; conglomerate sands range from 1mm to 3 mm in size, and are texturally more mature than loose unconsolidated sands; conglomerates are at 10% with loose unconsolidated sands at 90% with other minerals of shale, claystone, pyrite, greenstone and carbonaceous lithics; background gas low. CLAYSTONE AND TUFFACEOUS CLAYSTONE (1120- 1230') = light gray with pale white with red hues; soft malleable clotted, no fracture; rounded cuttings habit; smooth texture; no structure; volcanics claystone; loose unconsolidated sands entrained in claystone; gas background low. SAND (1230- 1380') = unconsolidated; very fine to lower medium grain; sub angular to angular; locally moderate sorting; fair to moderate sphericity; no evidence of cementation; abundant very light pale yellowish brown and very light gray to grayish white argillaceous material; appears as an arenaceous claystone possibly due to recombination up the hole and over the shaker; interval appears to exhibit upward fining as samples contain less clay and increasingly more coarse sand down section; lower part of interval is dominated by medium and lower coarse grains; angular to occasionally sub angular; moderate sorting in part with generally poor sphericity; no evidence of cementation; very minor clay interbed is inferred from drill rates and observation at shaker; minor amounts of well rounded, < 3mm pebbles appear at the base of this interval; • trace poorly developed woody coal; NSOFC. El EPOCH 6 Chevron I WO Bluebuck 6 -7 -9 SAND, MINOR COAL /CARBONACEOUS MATERIAL (1380- 1560') = unconsolidated; generally fine to lower • medium grain, medium grain common; sub angular to sub rounded in part; often angular; fair sorting; fair to poor sphericity; no evidence of cementation; very minor argillaceous content visible in samples; soluble clays not affecting mud properties; interval appears somewhat mature based on significant quartz content, degree of sorting, apparent lack of clays /fines; gross samples appear salt and pepper with milky white, grayish white and occasional translucent quartz slightly dominating abundant medium light gray and darker grayish black lithics; inter - bedded coal /carbonaceous shale /carbonaceous material varies from somewhat spherical clasts to tabular, subfissile fragments; generally firm to moderately hard in part; often earthy; larger samples occasionally vary from woody /pulpy to somewhat massive with slight birds -eye fracture; NSOFC. SAND (1560 -1620) . _ - unconsolidated; medium to coarse grain; angular to sub angular in part; fair to poor sphericity; moderate to well sorted in part; no evidence of consolidation or cementation properties indicated; texturally immature; compositionally submature with greater than 70% opaque, matte white to milky white to translucent quartz; locally abundant glass -like transparent quartz; samples exhibit salt and pepper appearance with significant medium light to dark gray and grayish black lithics; occasional pale yellowish brown, translucent yellowish brown, pale yellowish green clasts; cuttings coming clean over shaker with very little argillaceous material indicated; NSOFC. SAND AND ARENACEOUS CLAYSTONE (1620- 1770') = samples dominantly unconsolidated but exhibit minor interbedded sandy clay; very light yellowish brown to very pale yellowish brown; fine to lower medium grain; sub rounded to well rounded in part with good sphericity; sand poorly entrained in very soft; sticky, hydrophilic matrix; air dried samples readily hydrate and swell; trace extremely fine carbonaceous detritus; sand is dominantly medium to lower coarse grain; angular to rarely sub angular, poor sphericity; fair to moderate sorting; no matrix or cementation properties indicated; salt with pepper appearance with > 80% translucent to matte white and grayish white quartz; significantly less dark lithics than interval above; NSOFC. SAND (1770- 1830') = unconsolidated; medium grain, occasionally lower coarse grain; sub angular to sub ID rounded in part, angular common; moderate sphericity; moderate to well sorted in part; samples coming clean over shaker with little or no evidence of argillaceous component; no cementation properties indicated; samples appear salt and pepper with milky white translucent and glass -like transparent quartz, often opaque light grayish white; grayish black and medium dark gray lithics common; yellowish green to greenish blue and bluish gray clasts appear more frequently in upper part of interval; NSOFC. SAND (1830- 1930') = unconsolidated; noticeable pale yellowish brown to light grayish brown arenaceous clay - stone at the top of interval, followed by fine grain sand; increasing grain size down section becoming medium to lower coarse in part; generally sub - angular to sub rounded with fair sphericity; angular with poor sphericity common throughout interval; poor to fair sorting; salt and pepper appearance with > 70% milky white, translucent to transparent quartz; secondary lithics are dark grayish black, dark gray, various shades of yellowish brown, yellowish and bluish green; NSOFC. Intermediate Hole: 1960 feet to 4500 feet Drill Rate (ft/hr) Total Gas (units) Maximum Minimum Average Maximum Minimum Average 291.3 6.7 149.7 274 0 41.7 SAND (1930- 2040') = unconsolidated; predominantly upper fine to lower medium grained but poorly sorted with common very fine to upper medium grains; subangular to well rounded; moderate sphericity and sorting; salt and pepper appearance becoming grayer with depth as quantity of translucent and white quartz decreases and gray quartz and darker lithics become more common; quartz 80 %; common greenstone and dark lithics; cement common in 1950' sample. NSOFC. SAND AND SILTSTONE (2040- 2070') = light to medium gray sand; unconsolidated; as above; becoming • siltier and finer as depth increases; siltstone is soft and pulverulent; platy to blocky cuttings habit and clayeyer with depth. NSOFC. El EPOCH 7 Chevron Bluebuck 6 -7 -9 SAND AND ARENACEOUS CLAYSTONE (2070-2190') = medium gray; unconsolidated sand is upper fine to • upper medium grain moderately spheroidal; subangular to well rounded; composed primarily of translucent to white quartz with 10% gray to dark gray and black lithics and trace greenstone. the claystone is also light to medium gray in color with some yellowish hues; it is generally soft and pasty to lumpy; crumbly to pulverulent; fracture is irregular to blocky but some pastier cuttings exhibit planar parting when probed; luster is generally dull to earthy but may be microsparkling in some cuttings; smooth and gritty to granular textures observed; sand content can vary between little to 80% sand in the claystones indicating that very friable sandstones with a clay matrix may also be present in this interval. NSOFC. SAND (2190- 2260') = unconsolidated; predominantly lower fine to upper fine grained; moderately well sorted with some slightly coarser darker grains; subangular to well rounded; moderate sphericity and sorting; salt and pepper appearance; light gray; composed primarily of clear translucent and white quartz with common black and dark gray to yellow lithics and greenstone accessories; NSOFC. CLAYSTONE AND ARENACEOUS CLAYSTONE (2190- 2310') = light gray with blackish hues; mushy to curdy and often are impregnated with sand grains which also occur in this interval; soft and crumbly to pulverulent; irregular fracture and amorphous cuttings habit; dull earthy luster; silty to gritty texture; some appear to be laminated or thinly banded and contain approximately 10% dark fines as a whole; specimens with dark black carbonaceous fines up to 40% also occur, but are less common; NSOFC. CLAYSTONE AND ARENACEOUS CLAYSTONE (2310- 2400') = light to medium gray with greenish hues; curdy and mushy; very soft; weak irregular blocky fracture; amorphous cuttings; dull earthy to microsparkling luster depends on moisture; fine gritty to silty texture and massive structure; appears to be composed of light colored and translucent quartz predominantly with minor dark black carbonaceous fines; may contain up to 50% very fine to medium grain clear to translucent quartz sand and minor darker lithic grains (e.g. greenstones, black fines; NSOFC. SILTSTONE AND SAND (2400- 2490') = medium to light gray with brownish hues; pasty and mushy to curdy depending on clay and lower very fine sand content; soft to crumbly; irregular blocky fracture; amorphous to tabular blocky cuttings habit; dull earthy to microsparkling luster; smooth to granular texture; massive; composed predominantly of clear translucent to white quartz in silt and lower very fine sand grain size range; dark carbonaceous fines are also common; some coarser grains of quartz are also present; NSOFC. SILTSTONE AND CLAYSTONE (2490- 2550') = light gray with brownish hues; pasty and mushy to curdy; cohesive; with 30% lower very fine sand content; soft to crumbly; irregular blocky fracture; amorphous blocky cuttings habit; dull earthy luster; smooth to fine granular texture; composed predominantly of clear translucent to white quartz in silt and lower very fine sand grain size range; common dark carbonaceous fines; coarser grains of quartz also present; increasingly arenaceous with depth; NSOFC. SILTSTONE AND SANDSTONE (2550- 2640') = light to medium gray with light olive hues; siltstone is soft and crumbly with blocky fracture; amorphous cuttings habit; earthy microsparkling luster and granular texture; siltstone grades to easily friable very fine sandstone in much of this interval; some better developed sandstones are gasiferous such as the spot sample taken at 2568' associated with 47 units of gas. this sandstone is lower to upper fine grained moderately sorted with subangular to subrounded grains; moderate sphericity; easily friable; composed of 80% clear to translucent quartz grains with common dark carbonaceous fines; silty matrix; grain supported; siltstones grade to very fine sandstone with depth; a weak milky white delayed cut was observed in the spot sample under UV light. SANDY CLAYSTONE /ARGILLACEOUS SANDSTONE (2640- 2790') = light gray to light medium gray with slight very pale yellowish brown tones; interval is very gradational and varies from a clay with abundant sand grains to a matrix supported sand to a very argillaceous sandstone; extremely fine to very fine grain; well rounded to subrounded with good sphericity; moderate to well sorted in part; sand is friable to brittle; poorly consolidated; clays are soft, mushy; air dried samples readily hydrate, swell and crumble; hydrofissile in part; gross samples noncalcareous except for rare yellowish orange shell fragments; sand is dominantly 411 translucent, matte and opaque quartz; very minor secondary components include micro fine muscovite, biotite, El EPOCH 8 Chevron Bluebuck 6 -7 -9 tr. microcrystalline pyrite; < 10% carbonaceous detritus appears primarily as extremely fine spikey and occasional scale -like fragments; occasional very fine slightly pyritic carbonaceous clasts; NSOFC. CLAYSTONE / ARGILLACEOUS SANDSTONE (2790- 2910') = light to medium light gray, occasionally very light pale yellowish brown; soft, mushy; poorly cohesive; mostly non - adhesive; poorly indurated; nodular cuttings habit; dominantly crumbly to sectile; amorphous fracture; generally massive however some bedding is indicated in cleaner clay samples and contain extremely fine sand /silt micro - laminae, occasional extremely fine organic layering; carbonaceous material appears as spiky and scale like fragments along with very rare, intermittent stain -like components; shell fragments appear as disaggregated clasts and well entrained in clays; interbedded with arenaceous claystone with entirely matrix supported very fine grain quartz and argillaceous sandstone that appears grain supported with abundant clay matrix; arguably a siltstone based on grain size alone; trace glauconite; NSOFC. SANDSTONE, ARENACEOUS CLAYSTONE (2910- 3090') = light gray to medium light gray occasional slightly light pale yellowish brown tones; extremely fine to fine grain with occasional cuttings exhibiting lower medium grains; well rounded to sub rounded, sub angular in part; good sphericity; generally well sorted, less so with increasing grain size; poorly consolidated, friable to crumbly; noncalcareous; abundant clay matrix; interval is generally grain supported, matrix supported common; translucent matte to opaque quartz with very minor secondary greenstone and rare dark grayish black lithics; occasional biotite; organic poor with intermittent very fine shell fragments and black to brownish black spikey and scale -like carbonaceous material; very rare carbonaceous clasts; argillaceous sandstone grades to an arenaceous claystone with abundant quartz grains; clays are rarely clean; generally very gritty and abrasive; hydrophilic; soft, less mushy /pasty than seen above; hydrofissile, crumbly in part; rare cuttings exhibit black to brownish black streak/staining; no sample odor; very rare dull yellow mineral fluorescence; no solvent reaction. SANDSTONE, ARGILLACEOUS SANDSTONE, ARENACEOUS CLAYSTONE (3090- 3270') = medium light gray, light brownish gray to very pale yellowish brown; extremely fine to very fine grain, occasionally lower fine grain; well rounded to subrounded; good sphericity; moderate to well sorted, poorly sorted in part; poorly consolidated; soft, brittle; noncalcareous; grain supported in part with abundant argillaceous matrix; often matrix supported with upwards of 40% quartz grains; clays gradational to a sandy claystone with less than 40% well entrained quartz; soft, crumbly; amorphous fracture; nodular cuttings habit; generally dull luster, often sparkly, becoming subsucrosic with increasing sand content; occasionally micaceous in part; pyrite common as encrustation and as disaggregated microcrystalline clasts; noticeable increase in carbonaceous material as spikes, scale like fragments; occasional microfine layers of dark reddish brown, dark brownish black material and stains; fine, pyritic, carbonaceous clasts increase down section as soft, sub -waxy, bitumen like material; platy to slightly subfissile in part; traces of occasional shell fragments continue; no odor evident from samples; no fluorescence through bulk of interval; 3150 -3180' gross sample exhibits (2) cuttings with dull yellow /gold fluorescence; introduction of solvent to gross sample results in an increase to <10% dull yellow cuttings fluorescence with no visible cut. SANDSTONE, ARGILLACEOUS SANDSTONE, ARENACEOUS CLAYSTONE (3270- 3420') = light gray to medium light gray, often with light yellowish brown tones, rarely light pale yellowish brown; extremely fine to fine grain; rounded to subrounded, occasionally subangular; good sphericity; moor to moderately well sorted in part; poorly consolidated; soft to slightly friable in part; non- calcareous; also appears as unconsolidated or disconsolidated upper fine grain quartz; abundant argillaceous matrix; no visible porosity; samples continue to grade from a very dirty sandstone to a quartz rich claystone; samples dominantly translucent to matte opaque quartz; trace greenstone, rare yellowish orangeish brown lithics; locally abundant organics as scale -like to sub - platy, less spikey fragments; occasional soft, pyritic carbonaceous clasts continue but with less frequency than seen above; carbonaceous detritus appearing more as thin platy layered material, microlaminae or very thin bedded layers; trace yellowish orange shell fragments; NSOFC. SANDSTONE (3420- 3510') = significantly different than previously seen; light gray to grayish white, medium light gray; fine to medium grain; subangular to subrounded; also very fine grain; sub rounded to sub angular; S generally fair to moderate sphericity; poor to locally fair sorting in part; fair to moderate consolidation; firm to friable, crumbly in part with increasing clay content; noncalcareous; grain supported; matrix supported in part El EPOCH 9 Chevron Bluebuck 6 -7 -9 with abundant chalky argillaceous matrix; air dried samples readily rehydrate but remain intact; poor visible • porosity at best; cuttings appear salt with pepper in part with translucent, grayish white and matte opaque quartz dominating sand grains; medium dark gray and grayish black lithics common; cuttings contain abundant medium sized pyritic carbonaceous clasts and flakey fragments; pyrite encrusted lithics and coarse crystalline pyrite common; NSOFC. SANDSTONE, ARGILLACEOUS SANDSTONE, ARENACEOUS CLAYSTONE (3510- 3690') = light gray to grayish white, medium light gray, very light yellowish brown; extremely fine to very fine grain; subrounded to well rounded in part, occasionally sub angular; poor to fair sorting, locally moderate sorting; moderate to good sphericity; poorly consolidated, friable to crumbly; non- calcareous; sandstone dominantly grain supported but grades to matrix supported to a quartz rich claystone; arguably a siltstone in part based on grain size; quartz rich clasts well indurated with chalky /pulverulent paste; interval not as organic rich as seen above w/ occasional carbonaceous clasts and sub -platy fragments; rare clay cuttings exhibit bitumen -like deposits but do not fluoresce or react with solvent; no fluorescence in gross samples through interval. SANDSTONE, ARGILLACEOUS SANDSTONE (3690- 3870') = grayish white to very light gray, medium light gray; very fine to fine grain, often fine to medium grain; sub angular to sub round, rarely well rounded; good sphericity; moderate to locally well sorted in part; poor to well consolidated; friable /crumbly to very firm in part; noncalcareous; grain supported with abundant argillaceous matrix; grades to matrix supported as a very arenaceous claystone; poor visible porosity at best; air dried samples readily rehydrate and remain firm, intact; rare cuttings swell and crumble apart with decreasing quartz content; interval dominantly translucent matte, opaque quartz; very minor secondary components include occasional greenstone, disaggregated pyrite, pyrite encrusted clasts; organic content varies throughout interval and consists mainly of scaley - flakey - subplaty fragments; shell fragments common; cuttings occasionally appear with brownish black to black streaks and microthin bands; yellowish brown to brownish black stain is apparent on rare cuttings; no apparent odor from cutting samples; no sample fluorescence or solvent reaction. SANDSTONE, SANDY CLAYSTONE (3870- 3990') = grayish white, light gray to medium gray occasionally with light yellowish brown tones; very fine grain; varies from extremely fine to lower medium grain throughout interval; subangular to subrounded, rounded in part; good to fair sphericity; poorly sorted, occasionally moderate sorting; fair to well consolidated; crumbly, friable to quite firm in part; noncalcareous; generally grain supported with abundant argillaceous matrix; grades to an arenaceous claystone; clays generally very gritty and abrasive, rarely massive; carbonaceous materials continue as previously described; rare to occasional yellowish brown to brownish black stain on and in cuttings; mild but noticeable hydrocarbon odor in samples, more noticeable at shakers; samples through interval exhibit 40 -60% dull to bright yellow fluorescence; individual cuttings do not exhibit visible solvent reaction; gross cuttings exhibit a slow to develop bluish white halo -like solvent reaction on sample tray. ARENACEOUS CLAYSTONE /CLAYEY SANDSTONE (3990 - 4080') = light to medium gray; stiff and pulverulent; irregular blocky fracture; amorphous cuttings habit; sparkling luster under high light and dull earthy luster in low light; gritty granular texture; thin lamina observed on some cuttings; intergrades with silty -clay matrix supported lower very fine to upper fine grained quartz sandstones and very fine sandstones that are grain supported, composed largely of quartz, but also containing common black fines and trace pyrite and greenstones. Some sandstones exhibit dull golden yellow fluorescence in UV light, mild hydrocarbon odor, and fluoresce more brightly when cut. In general these sandstones appear to be very tight and no streaming or residual cut was observed. SANDSTONE (4080 - 4200') = light to medium gray with brownish hues; lower very fine grained predominantly but contains coarser grains to lower medium range; low to moderate sphericity; subrounded to subangular; poorly sorted; easily friable to firm friable; approximately 20% clay matrix of materials similar to grains; grain supported; composed of 80% gray to clear translucent quartz grains; common accessories include black lithic and carbonaceous fines, and greenstone; trace pyrite; common oil staining (over 20 %) on all or part of individual cuttings; slight hydrocarbon odor; no sample fluorescence; no instantaneous cut; however a milky yellow white streaming residual cut was observed in specimens from the 4170' sample and weak delayed . residual pale greenish white cuts were observed in other specimens from this interval. El EPOCH 10 Chevron IWO Bluebuck 6 -7 -9 SANDSTONE (4200- 4320') = light to medium with brownish and greenish hues; lower very fine to lower fine grain; very low to moderate sphericity; subangular to subrounded; poorly to moderately sorted and easily friable to firm; mostly grain supported; some silica cement; 50 %+ clay matrix in some specimens; composed of clear translucent white and gray quartz but also contain common dark lithics and greenstone; thin brownish and black laminae observed; common oil stains; weak hydrocarbon odor; 4230' samples fluoresce and exhibit residual yellow -white cut; generally no fluorescence or cut; fine downward and become more commonly laminated. SILTSTONE AND CLAYSTONE (4300 - 4440') = light to medium gray with brownish hues; lumpy to clumpy when wet stiffening with drying; brittle to crunchy; irregular blocky fracture; amorphous to tabular and somewhat elongated cuttings habit; vitreous sparkling luster when wet, dull earthy luster with drying, particularly in siltier specimens; siltstones exhibit granular textures, while claystones are somewhat smoother but commonly gritty; common laminae composed of coarse gray quartz, greenstone, dark lithics, and black and brown carbonaceous fines; rocks intergrade with very fine and fine silty-clay matrix supported sandstones very similar in composition to the more common siltstones and claystones. NSOFC. CLAYSTONE (4440 - 4500') = light to medium gray with brownish hues; mushy; crunchy to malleable; irregular blocky fracture; amorphous to tabular and slightly elongated cuttings habit; dull earthy luster; generally smooth texture, but some gritty specimens also observed; common thin dark brown and black laminae that are in part carbonaceous; NSOFC. i El EPOCH 11 Chevron NW Bluebuck 6 -7 -9 3.2 Connection Gas Summary 1unit = 0.05% Methane Equivalent Connection Total Gas Connection Gas Depth (ft) (units) (units above Comments background) 1374 21 5 C -1 only 1438 18 3 C -1 only 1503 44 5 C -1 only 1567 21 3 C -1 only 3.3 Trip/Wiper Gas Summary 1 Unit = 0.05% Methane Equivalent Depth (ft) Trip to (ft) Gas (units) Downtime (hours) 1116 249 2 3.8 1930 1116 34 18.5 4500 1829 40 8.5 Surface 4110 38 87.3 Wiper trip 3/5/09 4470 156 RIH with liner 4458 388 fa 3.4 !so-Tube Gas Samples 1 unit = 0.05% Methane E• uivalent Depth (feet) Total Gas C -1 C -2 C -3 C-4 C -5 C -6 C -7 (units) (• • m) (• pm) (ppm) (ppm (ppm) (ppm) (ppm) 2663 80 16167 2681 135 27291 2963 109 18832 2997 63 10335 3094 60 9771 3132 77 12520 3240 75 12200 3265 64 10548 3349 72 11865 3389 72 11803 3448 75 12487 3914 76 12454 Tr Tr Tr Tr 3924 82 13347 Tr Tr Tr Tr 4005 114 18563 93 Tr Tr Tr 4012 270 41427 156 Tr Tr Tr Tr Tr 4035 124 19544 Tr Tr Tr Tr Tr Tr 4109 85 13131 Tr Tr Tr 4130 77 12620 Tr Tr 4386 76 12068 Tr Tr 411 El I EPOCH 12 Chevron I WO Bluebuck 6 -7 -9 3.5 Sampling Program / Sample Dispatch Set Processed As Frequency Interval Dispatched to Chevron, USA Washed, dried, 909 West 9 Avenue A,B,C 30' 185' — 4500' MD P.O. Box 196247 envelopes Anchorage, AK 99518 -6247 Att: David Buthman/Tracy Winger EPOCH Well Services, Inc. D Unwashed, Wet 30' 185' to 4500' MD 301 East 92 Avenue Ste. #2 Whirlpak Anchorage, AK 99515 For QFII Analysis Chevron, USA Zones of As directed by 909 West 9 Avenue E Iso -Tubes gas Interest. Chevron Geologist P.O. Box 196247 Anchorage, AK 99518 -6247 Att: David Buthman/Tracy Winger Chevron, USA Zones of As directed by 909 West 9th Avenue F Iso -Jars P.O. Box 196247 Interest. Chevron Geologist Anchorage, AK 99518 -6247 Att: David Buthman/Tracy Winger • * Sample frequency may be altered according to drill rate constraints and zones of interest. • U EPOCH 13 Chevron Bluebuck 6 -7 -9 • 4 DRILLING DATA 4.1 Daily Activity Summary: February 16, 2009: Continue rig up operations. Adjust kelly hose; continue chinking around rig. Pressure test mud lines in pits and mud room with air. All hands working on pre -spud check list. PJSM for nippling up. Nipple up BOP's; hook up ground strap to well head; nipple up diverter spool, stack, choke and kill HCR to stack; choke 90 blocks on manifold; choke hose; kill line; bell nipple; graylock adapter. Flushed all pit lines and pump lines with water. Chevron conducts on site pre -spud meeting. Continue nipple up: knife valve; diverter line; Koomey lines; turnbuckles; pitcher nipple and hole fill line. Bring on water and continue mixing spud mud; clean out under shakes and install screens. February 17, 2009: Service rig: Change out swivel packing, adjust bail clamps. Work on rat killing and rig acceptance check list while building spud mud. Pick up 4" drill pipe and rack back in derrick. Set crown saver. Conduct site evacuation drill. Pick up 4" HWDP and rack back. Service top drive. Test diverter system and gas alarms. AOGCC witness waived by Lou Grimaldi. Tests witnessed by CVX DSM Bradford and NAD TP Sunderland. Prepare to pick up MWD and BHA #1. Pick up and rack back 6 -1/2" drill collars and jars. February 18, 2009: Continue picking up and racking back drill collars and jars. Pick up bit, mud motor, stabilizer, ARC -8, telescope, (sonic, stabilizer. Test standpipe manifold, mud line, mud pumps to 2000 psi. Circulate and pulse test 600 gpm at 900 psi. Condition mud; work on flow line out sensor. Wash and ream from 153 ft to 184 ft. Tag 15k. Blow down top drive, open flow line and chip out cement. Circulate mud in pits with gun line while adding water to reduce viscosity. Clean out cement from drilling out conductor from flow line and possum belly. Circulate mud around to even out mud system due to contamination. Drill ahead from 182 ft to 308 ft. Pull out of hole from 308 ft to bank due to wear bushing coming out on first stabilizer. Remove /reinstall wear bushing. Run in hole to 249 ft. Wash down from 249 ft to 308 ft. Make connection: Thread did not make up all the way; would not break down. Blow down top drive. Break down stand with tongs. Short trip to 245 ft. Currently changing out saver sub at report time. February 19, 2009: Continue changing out thread damaged HWDP and saver sub. Run in hole; wash from 250 ft to 310 ft. Drill ahead from 310 ft to 1117 ft. Circulate bottoms up X2 at 1117 ft. Monitor well: Static. Blow down top drive. Wiper trip from 1117 ft to 249 ft. Work through tight spot at 745 ft with 25k overpull. Back ream through tight spots at 1044', 663', 462' due to overpull up to 30k. Blow down top drive. Service swivel packing and blocks; inspect top drive. Run in hole from 249 ft to 1052 ft. Wash down from 1052 ft to 1117 ft with no fill. Drill ahead from 1117 ft to 1822 ft. February 20, 2009: Drill ahead from 1822 ft to casing point at 1930 ft. Circulate bottoms up twice. Monitor well: Static. Blow down top drive; pull out of hole from 1930 ft to 1117 ft. Back ream through 1335 ft due to swabbing. Monitor well at 1117 ft: Static. Run back in hole from 1117 ft to 1889 ft. Wash down from 1889 ft to 1930 ft with no fill encountered. Circulate bottoms up x4. Epoch records 32 units wiper gas maximum. Pull out of hole from 1930 ft to 185 ft. Monitor well: Static. Lay down mud motor and bit. PJSM with Weatherford to run 9 -5/8" casing. Rig up to run 9 -5/8" 40# L -80 BTC casing. Run same from surface to 1879.79 ft. Epoch records 17 units maximum trip gas. Gas steadies at 3 units while circulating. February 21, 2009: Continue casing operations. Pick up landing joint and hangar. Land on depth. Lay down landing joint; change out handling equipment; blow down top drive. Make up stab in adapter. Run in hole to 1833 ft; sting on depth. Rig up cement head and lines. Circulate and condition, staging to 170 gpm at 185 psi. Cement operations: pump 10 bbls water; test cement lines to 4000 psi: Good test. Pump 17 bbl 10 ppg spacer, 433 bbl 10.7 ppg Type -L lead cement, 70 bbl 15.8 ppg Type -G tail cement; displace with 19 bbl 9.5 ppg spud mud. Check floats: Good. Cement in place at 1100 hrs. Blow down /rig down cement lines and head; drain stack; lay down landing joint; clean out cement stinger. Pull out of hole 28 stands from 1830 ft. Trip in hole; wash and drain stack; make up pack off; run in pack off; set and test. Nipple down diverter system; nipple up BOP's. Clean mud pits #1, 2, 3. Set test plug; re -build blind rams; replace door seals. Hook up Koomey lines. Clean mud pits #4, 6. Install suction valves in mud pit #4. El EPOCH 14 Chevron IWO Bluebuck 6 -7 -9 February 22, 2009: Continue preparation to test BOP's. Heat water for testing; clean and clear rig floor and cellar. Rig up accumulator lines to annular preventer; charge accumulator. Rig up test equipment: Pick up test joint, make up floor valves to test joint, thaw annulus, chink in cellar due to freezing temperatures. Flood stack and choke with water. Continue to clean pits. Dress mud pumps with 5 -1/2: liners and swabs. PJSM for testing BOPE. Test BOP's at 250 psi low, 2500 psi high. Tests witnessed by AOGCC Lou Gimaldi, CVX DSM Jason Bradford and NAD TP Mike Spaulding. Encounter problems with 2" kill line isolation valve. Test bag, !BOP, Kill HCR: Repair kill line 2" Oteco and test. Pressure test casing /shoe: Pull test plug and successfully test casing to 2000 psi for 30 minutes. Re- install test plug and successfully test mud isolation valve. Install wear bushing; blow down test hose. NAD installs Epoch 1502 sensor on test manifold. Epoch records and charts all further BOP tests. Blow down choke, test manifolds and set pop offs to 3000 psi. PJSM for picking up BHA and loading nuclear source for MWD. Trip in hole with same and pulse test at 485 gpm. Blow down top drive. February 23, 2009: Continue running in hole from 310 ft to 1829 ft. Drill out shoe track and 20 ft of new hole from 1832 ft to 1950 ft. Circulate and condition hole; even mud weight in /out at 9.35 ppg. Perform FIT: Pump through kill line, 9.3 ppg mud at 1950 ft to 14.8 ppg EMW. Blow down kill line. Displace to KCI /Polymer mud to 9.0 ppg in /out. Change out shaker screens and clean ditches. Trouble shoot Schlumberger stand pipe pressure sensor. Drill ahead from 1950 ft to 2491 ft at 75k U/D wt, 2k WOB, 74 RPM, 500 gpm, 1490 psi on /1400 psi off. ECD = 10.69 ppg. Drill ahead from 2491 ft to 3438 ft. February 24, 2009: Continue drilling ahead from 3438 ft to 4050 ft. Circulate and condition at 4050 ft while changing out pop off on mud pump #2. Drill ahead from 4050 ft to 4500 ft TD. ECD = 10.21 ppg. Circulate and condition hole. Short trip fro 4500 ft to inside shoe at 1829 ft. Work through tight spots at 3860 ft pulling 20k over; 3777 ft pulling 15k over. Run back in hole from 1829 ft to 3187 ft.: Circulate and condition hole. Continue trip in hole from 3187 ft to4403 ft. Kelly up; wash and ream from 4403 ft to 4499 ft. Find 60 ft fill. Epoch records 40 units maximum wiper trip gas. Circulate and condition while working pipe. February 25, 2009: Blow down top drive. Pull out of hole from 4467 ft to 1893 ft. Monitor well: Static. Continue trip out of hole from 1893 ft to 248 ft. Monitor well: Static. Conduct PJSM before laying down BHA and removing nuclear sources. Finish trip out of hole from 248 ft to bank. Lay down Schlumberger tools. Rig up Baker wire line equipment. Make up wire line tool string. Run Grand Slam log. Run MREX log. Rig crews hazard hunt and chase rats: Clean pit area; service mud pump # 1 and #2; remove all mud products from pits; complete strapping and drifting all tubing; clean choke house, wind walls. Discuss BOP plan /drill for wire line logging. February 26, 2009: Continue running open hole logs. Complete MREX logs. Pick up and run side wall core. Lay down core barrel and RCOR tool string. Surface test VSP equipment; pick up VSP tool string; run in hole with VSP tool. Conduct VSP log. Lay down VSP tool; make up RCI wireline log. February 27, 2009: Continue open hole logging. Change out RCI tool due to failure. Rig up and run in hole with RCI pressure tool. Log same. Rig down wire line tools and sheaves. Rig up for drill pipe conveyed RCI tests. Conduct surface and downhole tool tests. Rig crews chasing rats and continue house cleaning. Epoch monitors pit levels and gas at possum belly; EOW report. February 28, 2009: Continue open hole logging. Lay down wire line tools. Pick up sample chambers; troubleshoot sampling tool. Total logging string length 140.29 ft. Change out wireline head to drill pipe conveyed head. Trip in hole rabbetting and steaming pipe to 2200 ft. Pick up drill pipe single; make up crossovers and side entry sub. Break circulation at 2 bpm at 25 psi. Reinstall wireline: Wireline jumped sheave. Continue trip in hole from 2200 ft to 4110 ft. breaking circulation every 10 stands at 2 bpm at 25 psi. Conduct RCI drill pipe conveyed logging at 4110 while circulating at 2 bpm and 33 psi. Epoch records a maximum of 38 units of trip gas at 4110 ft. Gas settles to 2 -3 units while circulating at report time. March 1, 2009: Circulate at 2 bpm through drill pipe conveyed logs. Safety shut down for Phase III high 411 winds and snow fall. El EPOCH 15 Chevron Bluebuck 6 -7 -9 March 2, 2009: Continue waiting on weather. Drill pipe conveyed logs in hole; circulating at 2 bpm. At 0530 hours: Blow down top drive; pull pipe from 4110 ft to 3769 ft. Conduct RCI open hole logging at 2 bpm. Clear snow from around rig. At 1800 hours: Blow down top drive; pull pipe from 3769 ft to 3143 ft; pick up 14.73 ft pup to space out. Conduct RCI open hole log circulating at 2 bpm. At 2330 hours: Blow down top drive; prepare to move drill pipe logging tool. Epoch recording less than 15 units of gas while circulating at 2 bpm. March 3, 2009: Continue drill pipe conveyed logging. Blow down top drive. Pull pipe from 3143 ft to 2624 ft. Conduct RCI open hole logging at 2624 ft circulating at 2 bpm. At 0700 hours: Blow down top drive. Pull pipe from 2624 ft to 2200 ft; lay down side entry sub. Blow down top drive. Pull pipe from 2200 ft to 1878.75 ft; make up side entry sub. Pump down wet connect; verify wet connect. Blow down top drive. Run in hole from 1918 ft to 2175 ft. Conduct RCI open hole log while circulating at 2 bpm. Epoch records a maximum 12 units of gas during the past 24 hours of testing. March 4, 2009: Pull out of hole from 1777 ft to 141 ft. Laid down third party tools. Pick up test tools and prepare to test same. Pull wear bushing; drain stack; flush lines; pick up test joint and crossovers. Problem with fluid leaking past valves in pump room and back to pits. Rig up Epoch BOP pressure sensor on test manifold. Trouble shoot various problems with BOP tests /leaks. Epoch records and charts all BOP tests. March 5, 2009: Completed BOP tests. Install wear bushing; slip and cut drill line. Trip in hole from surface with bit, bit sub bored for float, spiral drill collar, jars and HWDP on 4" drill pipe. Break circulation at 2862 ft and 3313 ft. at 5 bpm and 80 psi. Continue trip in hole: Tagged up at 4470 ft. Wash and ream from 4342 ft to 4084 ft; pull 10 -15k over, swabbing at 4318 ft. Kelly up: Pump at 5 bpm, 300 psi, 20 rpm, 500 torque. Epoch records trip gas of 131 units and 152 units from (2) zones. Blow down top drive. Pull out of hole from 4084 ft to 1897 ft. Monitor well in shoe; tie service loops together. Continue trip our of hole from 1897 ft to surface. Begin making up and picking up drill pipe conveyed logging tools. March 6, 2009: Pick up logging tools for drill pipe conveyed logs. Run in hole with logging tools on 4" drill • pipe from 143.07 ft to 1881 ft. Break circulation and pump at 2 bpm. Rig up side entry sub, wireline sheaves and wireline. Continue trip in hole from 1881 ft to 3779 ft, breaking circulation every 10 stands at 2 bpm. Make up side entry sub; pump down wet connect at 6 bpm and 321 psi. Establish connect; blow down top drive. Continue trip in hole from 3779 ft to 4190 ft breaking circulation every 10 stands at 2 bpm. Conduct RCI open hole logging at 4190 ft. Take sample at 4103 ft. Circulate at 2.5 bpm, 20 -30 psi. Flag off drill floor for wireline. Epoch records 13 units of trip gas. Background gas drops to 5 units and slowly increases to 17 units while circulating at 2.5 bpm at report time. March 7, 2009: Continue open hole RCI log at 4190 ft, sample at 4103 ft. Circulate at 2.5 bpm and 53 psi. Epoch records 17 units background gas at 0001 hours, steadily increasing to 36 units at 1200 hours prior to POOH. Daily activity includes HSE; rig condition audit; rat killing. Pull out of hole at 1430 hours from 4190 ft to 3788 ft. Rig down e-line sheaves, side entry sub, crossovers. Continue trip out of hole from 3788 ft to 143 ft. Lay down logging tools. Epoch scrapes fluid samples from logging tool casing for Chevron engineer; photos taken for DSM Floyd Hurt. Prepare tools and conduct PJSM for running 4 -1/2" liner. March 8, 2009: Casing operations: Make up shoe track to 174 ft; Baker lock float equipment. Floats check good. Run 4 -1/2" IBTM L-80 12.6# tubing from 174 ft to 2666 ft. Ran 5 centralizers; torque all connections to 3k. Make up setting sleeve; change out handling equipment; pick up /make up liner hanging assembly. Circulate and condition at 2770 ft staging pump to 4 bpm at 50 psi. Continue trip in hole from 2770 ft to 4378 ft: Rabbet out of derrick. Wash down from 4378 ft to 4463 ft. Blow down top drive. Install cement lines; pick up 15 ft pup; pick up cement head. Circulate and condition at 4 bpm and180 psi. Epoch records 388 units maximum trip gas at bottoms up. Install cement lines; pump 2 bbls and pressure test lines to 5000 psi. Cement operations: Pump 8 bbls water; chase with 30 bbls dual spacer at 10 ppg; pump 208 bbls 11.5 ppg Econolite cement. Drop wiper dart at 1548 hours and chase with 2 bbls water. Pump 17 bbls mud. Bump plug at 500 psi over; check floats. Make up liner setting sleeve. Pressure up to 2600 psi to set hanger; hold. Pressure up to 4000 psi to set packer; bleed off. Set 15k down on packer, pull 9k over; set to string weight; rotate 15 turns to set to release running tool. Rig down lines and cement head. Circulate cement/displace; S drop wiper ball; circulate hole clean at 7 bpm at 80 -90 psi. No cement returns to surface. At 1900 hours begin circulating at 4 bpm while initiating safety shut down due to Phase III high wind and blowing snow conditions. PI EPOCH 16 Chevron Bluebuck 6 -7 -9 March 9, 2009: Continue safety shut down for Phase Ill wind and snow conditions. Circulate over top of • cement at .5 bpm, 0 psi. Begin laying down 4" drill pipe at 1630 hours from 1088 ft to surface. Fill kill and choke lines; pressure test casing to 2000 psi for 30 minutes. Test witnessed by CVX DSM Floyd Hurt. Rig down test equipment; blow down kill and choke lines. Trip in hole with mule shoe and 17 stands drill pipe. Pull out of hole laying down 33 joints of 4" drill pipe. Trip in hole with mule she and 17 stands drill pipe. March 10, 2009: Lay down 34 joints of 4" drill pipe. Trip in hole with 8 stands; lay down 22 joints 4" drill pipe. Run in hole with 10 stands HWDP; lay down 20 joints 4" HWDP. Remove wear bushing and pull wear ring. Make up bridge plug and running tool. Run in hole to 268 ft. Circulate casing clean. Rotate 35 turns to the right; pull over 50k shear off; rotate 25 turns to right; un- sting; set down 8k on packer; break out top drive and blow down. Rig up head pin, swing, hose to Halliburton. Cement Operations: Pump 5 bbls water; mix and pump 15.5 bbls Type -C Permafrost cement; displace with 2 bbls water; blow down and rig down lines. Pull out of hole sideways laying down 8 joints 4" drill pipe; lay down running tool. Johnywack stack with water; function rams and bag while washing; whack stack again; drain stack; blow through choke and kill; shut blinds and circulate soap water through kill, across and through choke manifold. Blow down choke and kill lines; drain stack and poor boy. Bleed off Koomey; remove and blow down Koomey lines. Rig down mud manifold, super choke. Remove choke and kill lined. Blow down mud pump 1 and 2 suction, bleeder and pop off lines; blow down suction /gun lines in mud pits. Start nipple down BOP's. Start rig down pump room. Phase Ill weather conditions called at 2200 hours due to high winds and blowing snow. March 11, 2009: Phase Ill weather conditions continue; status canceled at 0900 hours. General housekeeping, and light maintenance conducted through safety shutdown. Nipple down and pit cleaning operations resume. Epoch continues rigging down Rigwatch equipment. This will be the final Daily Report submitted for Chevron Bluebuck 6 -7 -9. 410 • E1 EPOCH 17 Chevron NINO Bluebuck 6 -7 -9 1 • 4.2 Survey Data 12 -1/4" Hole Measured Incl. Azim. True Vertical Northings Eastings Vertical Dogleg Depth Section Rate (ft) (deg) (deg) Depth (ft) (ft) { +N / -S} (ft) { +E / -W} (ft) ( ° /100ft) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 357.84 0.87 35.14 357.83 2.22 1.56 357.83 0.24 480.14 0.71 31.27 480.11 3.63 2.49 122.30 0.14 541.74 0.60 36.32 541.71 4.21 2.88 61.60 0.20 662.94 0.49 21.22 662.90 5.21 3.44 121.20 0.15 786.14 0.43 40.02 786.10 6.05 3.93 123.20 0.13 915.74 0.22 33.73 915.70 6.63 4.38 129.60 0.16 1043.82 0.34 324.43 1043.78 7.15 4.30 128.08 0.26 1172.12 0.49 286.43 1172.07 7.61 3.55 128.30 0.24 1300.77 0.14 250.58 1300.72 7.72 2.87 128.65 0.30 1428.77 0.14 139.33 1428.05 7.49 2.88 127.33 0.23 1558.70 0.52 127.62 1558.65 6.94 3.51 130.60 0.24 1686.50 0.36 106.70 1686.45 6.47 4.35 127.80 0.18 1816.44 0.24 98.75 1816.38 6.32 5.01 129.94 0.10 1857.44 0.24 89.25 1857.38 6.30 5.18 41.00 0.10 10 8 -1/2" Hole Measured Incl. Azim. True Vertical Northings Eastings Vertical Dogleg Depth (deg) (deg) Depth (ft) (ft) { +N / -S} (ft) { +E / -W} ft ction Rate (ft) O ( ) 1947.38 0.57 56.35 1947.32 6.55 5.74 89.94 0.43 2140.73 0.46 59.02 2140.66 7.49 7.21 59.02 0.06 2334.03 0.36 59.52 2333.96 8.19 8.40 193.30 0.05 2461.03 0.39 58.19 2460.95 8.62 9.11 127.00 0.02 2591.33 0.38 47.54 2591.25 9.15 9.80 130.30 0.06 2653.43 0.44 54.80 2653.35 9.43 10.15 62.10 0.13 2848.63 0.20 62.49 2848.55 10.02 11.06 195.20 0.12 3042.03 0.40 39.98 3041.94 10.69 11.80 193.40 0.12 3169.43 0.42 49.79 3169.34 11.33 12.44 127.40 0.06 3298.83 0.37 58.25 3298.74 11.86 13.16 129.40 0.06 3428.03 0.48 55.19 3427.93 12.38 13.96 129.20 0.09 3556.53 0.34 64.14 3556.43 12.86 14.74 128.50 0.12 3685.63 0.45 52.45 3685.53 13.33 15.49 129.10 0.11 3813.63 0.35 46.32 3813.52 13.91 16.17 128.00 0.08 3942.53 0.27 45.67 3942.42 14.40 16.67 128.90 0.06 4071.13 0.29 22.86 4071.02 14.91 17.01 128.60 0.09 4135.23 0.31 19.20 4135.12 15.22 17.13 64.10 0.04 4199.23 0.34 18.69 4199.12 15.56 17.25 64.00 0.05 4328.83 0.37 337.26 4328.72 16.31 17.21 129.60 0.19 • 4393.13 0.45 316.28 4393.01 16.69 16.96 64.30 0.26 El EPOCH 18 Chevron I WO Bluebuck 6 -7 -9 0 4.3 Bit Record Depth Depth Ft g. Hrs. Wear Reason 1 Bit Size Type Ser. No. JetsITFA In Out 9 1 12 -1/4" HCC 5159668 3X15,1X13/ 178' 1930' 1752 13.4 2 -3 -CT- Casing MX -L1X 0.65 C1 -E1 -NO HYC 6X12/ 2- 2 -CT -S- 2 8-1/2" DS619S -A3 206365 0.66 1930' 4500' 2570 31.9 X -1 -PN TD • 0 U EPOCH 19 • O Bluebuck 6 -7 -9 1 4.4 Mud Record Contractor: BAROID Spud Mud in 12 -1/4" Hole Date Depth MW ECD VIS PV YP Gels FL FC Sols 0/W Sd MBT pH Cl- Ca+ (ppg) (s /qt) (cc) ( %) Ratio ( %) (m1/1) (m1 /1) 02/16/09 185 8.60 126 27 34 29/39/- 12.1 4 2.0 -/97.7 -- 20.0 9.00 500 30 02/17/09 185 8.60 144 29 31 24/49/- 11.8 2 1.9 -/97.8 -- 15.0 9.50 650 80 185 8.60 152 30 36 28/35/54 10.0 4 1.9 -/97.8 -- 15.0 9.50 700 80 02/18/09 185 8.60 8.80 129 28 31 23/49/- 11.6 2 1.9 -/97.8 -- 15.0 9.20 650 40 310 8.80 8.80 136 25 35 25/51/- 11.0 2 3.4 -/96.3 -- 14.0 9.10 600 20 02/19/09 1097 8.95 9.30 94 17 24 34/84/- 12.2 3 4.7 -/95.1 0.75 10.0 8.50 500 40 1677 9.20 9.30 89 14 26 24/73/- 13.0 2 6.5 -/95.3 0.75 10.0 8.70 450 40 02/20/09 1930 9.40 9.40 89 23 20 20/76/- 12.2 2 8.0 -/91.8 2.0 10.0 9.20 600 60 1930 9.40 9.40 95 22 20 18/73/- 13.0 2 8.0 -/91.8 2.0 10.0 9.20 500 60 02/21/09 1930 9.40 9.40 49 16 7 2/27/- 12.4 2 7.9 -/91.8 0.75 2.50 9.20 1.3k 640 1930 9.40 9.40 47 15 9 5/25/- 13.0 2 7.9 -/91.8 0.75 2.50 9.20 1k 600 1 02/22/09 1930 9.40 9.40 54 11 19 7/9/- 4.7 1 3.0 -/95.0 -- -- 9.20 24k 440 1930 9.40 9.40 45 15 9 6/21/- 13.0 2 7.9 -/91.8 .75 2.50 9.10 1.1k 800 Abbreviations MW = Mud Weight Gels = Gel Strength Sd = Sand content ECD = Effective Circulating Density WL = Water or Filtrate Loss Cl- = Chlorides VIS = Funnel Viscosity FC = Filter Cake Ca+ = Hardness Calcium PV = Plastic Viscosity Sols = Solids O/W = Oil to Water ratio YP = Yield Point FLT = Flow Line Temp [I EPOCH 20 • is • Bluebuck 6 -7 -9 Contractor: BAROID KCI /Polymer in 8 -1/2 "" Hole Date Depth MW ECD VIS PV YP Gels FL FC Sols 0/W Sd Cl- Ca+ MBT pH (ppg) (s /qt) (cc) ( %) Ratio ( %) (m1 /1) (m1 /1) 02/23/09 1950 9.00 9.44 44 11 21 8/14/- 4.8 1 3.0 -/95.0 -- 7.0 10.40 24k 200 2555 9.20 9.44 48 14 21 8/15/- 4.3 1 4.0 -/93.5 -- 7.0 10.00 30k 360 3407 9.20 9.44 46 14 16 9/14/16 3.5 1 4.0 -/93.5 0.75 7.5 9.20 31k NL 02/24/09 4209 9.15 9.51 44 12 18 6/9/- 5.3 1 4.0 -/93.9 -- 5.0 9.90 25k 280 4500 9.25 9.51 47 14 19 9/13/16 4.2 1 4.3 -/93.1 0.75 5.0 9.50 32k 180 02/25/09 4500 9.30 9.30 47 13 18 5/7/9 4.7 1 4.7 0.2/92.5 0.75 6.5 7.50 32k 200 4500 9.30 9.30 48 14 19 7/9/11 4.5 1 4.7 0.2/92.5 0.75 6.5 9.20 32k 180 02/26/09 4500 9.30 9.30 50 15 19 6/8/9 4.3 1 4.6 0.2/92.5 0.75 6.5 10.10 33k 200 4500 9.30 9.30 49 14 20 7/10/11 4.2 1 4.7 0.2/92.5 0.75 -- 9.80 32k 200 02/27/09 4500 9.30 9.30 47 15 19 5/8/9 4.8 1 4.6 0.2/92.5 0.75 6.5 9.30 33k 200 4500 9.30 9.30 51 16 23 9/10/11 4.6 1 4.6 0.2/92.5 0.75 7.0 9.30 33k 120 02/28/09 4500 9.50 9.50 71 21 32 8/11/12 4.6 1 6.3 0.2/92.5 0.75 7.5 9.40 32k 200 4500 9.30 9.50 70 21 29 9/11/13 4.5 1 4.7 0.2/92.5 0.75 7.5 9.30 32k 200 03/01/09 4500 9.30 53 17 20 6/8/9 4.6 1 4.7 0.2/92.5 0.75 7.5 9.40 32k 200 03/02/09 4500 9.30 55 18 19 7/10/12 4.2 1 4.7 0.2/92.5 0.75 7.0 9.30 32k 180 03/03/09 4500 9.30 50 16 19 5/7/8 4.6 1 4.6 0.2/92.5 0.75 7.5 9.40 33k 200 4500 9.30 55 17 18 5/8/10 4.5 1 4.7 0.2/92.5 0.75 7.5 9.30 32k 200 03/04/09 4500 9.30 46 15 16 5/5/7 4.7 1 4.7 0.2/92.5 0.75 7.5 9.40 32k 200 03/05/09 4500 9.35 55 16 18 5/6/7 5.4 1 5.0 0.2/92.2 0.75 7.5 9.30 32k 200 03/06/09 4500 9.30 47 15 17 5/6/7 5.0 1 4.9 0.2/92.5 0.75 7.5 9.30 30k 200 Abbreviations MW = Mud Weight Gels = Gel Strength Sd = Sand content ECD = Effective Circulating Density WL = Water or Filtrate Loss Cl- = Chlorides VIS = Funnel Viscosity FC = Filter Cake Ca+ = Hardness Calcium PV = Plastic Viscosity Sols = Solids 01W = Oil to Water ratio YP = Yield Point FLT = Flow Line Temp El I EPOCH 21 Chevron Bluebuck 6 -7 -9 • 5 DAILY REPORTS February 17, 2009 through March 12, 2009 Follow • • U EPOCH 22 Chevron OW I OW Bluebuck 6 - - Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT [1 EPOCH Bluebuck 6 -7 -9 REPORT FOR Bradford, Matheme DATE Feb 16, 2009 DEPTH 80' PRESENT OPERATION Rig Up Operations TIME 2359 hrs YESTERDAY 80' 24 HOUR FOOTAGE 0' CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION _ @ FT /HR SURFACE TORQUE 1 @ AMPS WEIGHT ON BIT @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE _ PSI DRILLING MUD REPORT DEPTH MW VIS PV VP FL Gels CL- FC SOL SD OIL MBL pH Ca+ CCI MWO SUMMARY III INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS CUTTING GAS n @ WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) rl @ CONNECTION GAS HIGH ETHANE (C -2) @ @ AVG PROPANE (C -3) @ @ CURRENT BUTANE (C -4) r, @ CURRENT BACKGROUND /AVG PENTANE (C -5) .1! @ HYDROCARBON SHOWS INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY Continue rig up operations. Adjust kelly hose; continue chinking around rig. Pressure test mud lines in pits and mud DAILY room with air. All hands working on pre -spud check list. PJSM for nippling up. Nipple up BOP's; hook up ground strap ACTIVITY to well head; nipple up diverter spool, stack, choke and kill HCR to stack; choke 90 blocks on manifold; choke hose, kill SUMMARY line; bell nipple; graylock adapter. Flushed all pit lines and pump lines with water. Chevron conducts on site pre -spud meeting. Continue nipple up knife valve; diverter line; Koomey lines; turnbuckles; pitcher nipple and hole fill line. Bring on water and continue mixing spud mud; clean out under shakes and install screens. EPOCH PERSONNEL ON BOARD Resch, Bleys + 2 SC_ DAILY COST $7425 REPORT BY Larry Resch • file://C: \Documents and Settings\EpoehAdmin\My Doeuments\My Wells \Chevron\200902... 2/17/2009 U EPOCH 23 Chevron Iwo Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT [I EPOCH Bluebuck 6 -7 -9 REPORT FOR Bradford, Bothner DATE Feb. 17, 2009 DEPTH 153' PRESENT OPERATION P/U BHA TIME 2359 hrs YESTERDAY 153' 24 HOUR FOOTAGE 0' CASING INFORMATION 16" © 153' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION % FT /HR SURFACE TORQUE % AMPS WEIGHT ON BIT s+ % KLBS ROTARY RPM %+ RPM PUMP PRESSURE PSI DRILLING MUD REPORT DEPTH 153' MW 8.6 VIS 144 PV 29 YP 31 FL 11.8 Gels 24/491- CL- 650 FC 2 SOL 1.9 SD OIL -/97.8 MBL 15.0 pH 9.5 Ca+ 80 CCI MWD SUMMARY • INTERVAL TO TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS (g TRIP GAS CUTTING GAS % WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) %+ CONNECTION GAS HIGH ETHANE (C -2) Q AVG PROPANE (C -3) CURRENT BUTANE (C-4) ,.• CURRENT BACKGROUND /AVG PENTANE (C -5) HYDROCARBON SHOWS INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY Service rig: Change out swivel packing, adjust bail clamps. Work on rat killing and rig acceptance check list while DAILY building spud mud. Pick up 4" drill pipe and rack back in derrick. Set crown saver. Conduct site evacuatuion drill. Pick ACTIVITY up 4" HWDP and rack back. Service top drive. Test diverter system and gas alarms. AOGCC witness waived by Lou SUMMARY Grimaldi. Tests witnessed by CVX DSM Bradford and NAD TP Sunderland. Prepare to pick up MWD and BHA #1. Pick up and rack back 6 -1/2" drill collars and jars at report time. EPOCH PERSONNEL ON BOARD Resch, Bleys + 2 SC DAILY COST $7465 REPORT BY Larry Resch file: / /C: \Documents and Settings\EpochAdmin \My Documents\My Wells \Chevron\200902... 2/18/2009 El EPOCH 24 Chevron IWO Bluebuck 6 -7 -9 Daily Report Page 1 of 1 III Chevron, USA White Hills Project DAILY WELLSITE REPORT E EPOCH Bluebuck 6 -7 -9 REPORT FOR Bradford, Bothner DATE Feb 18, 2009 DEPTH 313' PRESENT OPERATION P.LI BHA #2 TIME 2359 hrs YESTERDAY 153' 24 HOUR FOOTAGE 160' CASING INFORMATION 16" @ 153' SURVEY DATA DEPTH bNCL NATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B /C, PULLED 1 12 -1/4" HCC MX -L 1X 5159568 1X13, 3X15/0 65 153' 160' 1 8 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 272 7 @ 199 19 5 @ 230 126 5 70 6 FT/HR SURFACE TORQUE 2244 @ 262 282 @ 158 1107 5 1079 AMPS WEIGHT ON BIT 23 @ 252 1 @ 155 13 3 17 4 KLBS ROTARY RPM 54 @ 157 33 @ 180 43 9 37.0 RPM PUMP PRESSURE 1071 @ 154 565 @ 180 832.8 1009 6 PSI DRILLING MUD REPORT DEPTH 310' MW 8 8 VIS 136 PV 25 YP 35 FL 11 0 Gels 25/51/- CL- 600 FC 2 SOL 3 4 SD OIL -/96 3 MB 14 0 pH 9 1 Ca* 20 CCI MWD SUMMARY • NT ER TOOLS AL TOOLS 153' TO Current Tn -cone milled tooth bit with mud motor, ARC -8, 'SONIC GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 0 @ @ TRIP GAS 0 CUTTING GAS 0 @ @ WIPER GAS CHROMATOGRAPHY (ppm} SURVEY METHANE (C -1) 0 @ @ CONNECTION GAS HIGH 0 ETHANE (C -2) 0 @ @ AVG PROPANE (C -3) 0 @ @ CURRENT BUTANE (C-4) 0 @ . @ CURRENT BACKGROUND/AVG 0 PENTANE(C -5) 0 @ @ HYDROCARBON SHOWS None INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY 24 hour Sand, conglomergate, day PRESENT LITHOLOGY 300 Ft 90% sand/conglomeratic sand, minor clay Continue picking up and racking back dell collars and jars Pick up bit, mud motor, stabilizer, ARC -8, telescope, (sonic, stabilizer Test standpipe marwfold, mud line, mud pumps to 2000 psi Circulate and pulse test 600 gpm at 900 psi Condition mud, work on flow line out sensor Wash and ream from 153 ft to 184 ft Tag 15k. Blow down top drive, open Row line and DAILY chip out cement Circulate mud in pits with gun line while adding water to reduce viscosity Clean out cement from drRlmg out ACTIVITY conductor from low line and possum belly Circulate mud around to even out mud system due to contamination Drill ahead SUMMARY from 182 It to 308 ft. Pull out of hole from 308 ft to bank due to wear bushing coming out on first stabilizer Remove/reinstall wear busting Run in hole to 249 ft Wash down from 249 ft to 308 ft Make connection Thread did not make up all the way, would not break down Blow down top drive Break down stand wth tongs Short trip to 245 tt Currently changing out saver sub at report time EPOCH PERSONNEL ON BOARD Reseh, B1eys + 2 SC DAILY COST $7465 REPORT BY Larry Resch • file: / /C: \Documents and Settings \EpochAdmin\My Documents\My Wells \Chevron \200902... 2/19/2009 HI EPOCH 25 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 S Chevron, USA White Hills Project DAILY WELLSITE REPORT HI EPOCH Bluebuck 6-7 -9 REPORT FOR Bradford, Bothner DATE Feb 18, 2009 DEPTH 313' PRESENT OPERATION P/U BHA #2 TIME 2359 hrs YESTERDAY 153' 24 HOUR FOOTAGE 160' CASING INFORMATION 16" © 153' SURVEY DATA DEPTH INCL OVATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS TIE /C PULLED 1 12 -1/4" HCC MX -L1X 5159568 1X13, 3X15/0 65 153' 160' 1 8 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 272.7 @ 199 19.5 @ 230 126 5 70.6 FT/HR SURFACE TORQUE 2244 @ 262 282 @ 158 1107 5 1079 AMPS WEIGHT ON BIT 23 @ 252 1 @ 155 13 3 17 4 KLBS ROTARY RPM 54 @ 157 33 @ 180 43 9 37 0 RPM PUMP PRESSURE 1071 @ 154 565 @ 180 832 8 1009 6 PSI DRILLING MUD REPORT DEPTH 310' MW 8 8 VIS 136 PV 25 YP 35 FL 11 0 Gels 25/51/ - CL- 600 FC 2 SOL 3 4 SD OIL -/96 3 MBL 14 0 pH 9 1 Ca+ 20 CC I MWD SUMMARY • IVTERVAL 153' TO Current TOOLS Tn -cone milled tooth bit with mud motor, ARC -8, ISONIC GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 0 @ @ TRIP GAS 0 CUTTING GAS 0 @ @ WIPER GAS CHROMATOGRAPHY (ppm I SURVEY METHANE (C -1) 0 @ @ CONNECTION GAS HIGH 0 ETHANE (C -2) 0 @ @ AVG PROPANE (C -3) 0 @ @ CURRENT BUTANE (C-4) 0 @ @ CURRENT BACKGROUND/AVG 0 PENTANE(C -5) 0 @ @ HYDROCARBON SHOWS None INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY 24 hour Sand, conglomergate, day PRESENT LITHOLOGY 300 Ft' 90% sand/conglomeratic sand, minor clay Continue pid<rig up and racking back drill collars and jars Pick up bit, mud motor, stabilizer, ARC -8, telescope, (sonic, stabilizer Test standpipe manifold, mud line, mud pumps to 2000 psi Circulate and pulse test 600 gpm at 900 psi Condition mud, work on flow line out sensor Wash and rear from 153 ft to 184 ft Tag 15k Blow down top drive, open low line and DAILY chip out cement Circulate mud in pits with gun line while adding water to reduce viscosity Clean oil cernert from drilling out ACTIVITY conductor from low line and possum belly Circulate mud around to even out mud system due to cortarnination Drill ahead SUMMARY from 182 It to 308 ft PAI out of hole from 308 it to bank due to wear bushing coming oil on first stabilizer. Remove/reinstall wear bushing Run in hole to 249 ft Wash down from 249 ft to 308 ft Make connection Thread did not make up all the way, would not break down Blow down top drive Break down stand with tongs Short trip to 245 It Currently changing out saver sub at report tree EPOCH PERSONNEL ON BOARD Resch, Bleys + 2 SC DAILY COST $7465 REPORT BY Larry Resch III file: / /C: \Documents and Settings \EpochAdmin\My DocumentslMy Wells \Chevron \200902... 2/19/2009 El EPOCH 26 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 0 Chevron, USA White Hills Project DAILY WELLSITE REPORT El EPOCH Bluebuck 6-7 -9 REPORT FOR Bradford, Bothner DATE Feb 19, 2009 DEPTH 1822' PRESENT OPERATION Drilling Ahead TIME 2359 hrs YESTERDAY 313' 24 HOUR FOOTAGE 1509' CASING INFORMATION 16" @ 153' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 480' 0 71 31 27 480 11' 786' 0 43 40 02 786 10' SURVEY DATA 1172' 0 49 286 43 1172 07' 1559' 0 52 127 62 1558 65' 1857' 0 24 89 25 1857 38' BIT IJFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED 1 12 -1/4" HCC MX -L1X 5159568 1X13,3X15/0 65 153' 1669' 11 8 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 364 0 (c9 961 27 7 @ 1428 170 6 203 6 FTAiR SURFACE TORQUE 8436 @ 1287 123 @ 394 2436 3 1741 AMPS WEIGHT ON err 31 @ 784 1 @ 1630 14.6 7 8 KLBS ROTARY RPM 102 @ 1245 37 @ 315 75 4 99 RPM PUMP PRESSURE 2311 @ 1542 981 @ 318 1786 2 1793 PSI DRILLING MUD REPORT DEPTH 1677' MW 92 VIS 89 PV 14 YP 26 FL 130 Gels 24/73/- CL- 450 FC 2 SOL 6 5 SD 0.75 OIL -/93 3 MBL 10 0 pH 8.7 Ca 40 CCI MWD SUMMARY INTERVAL 153' TO Curren TOOLS Tn -cone milled tooth bit with mud motor, ARC -8, ISON IC GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 151(calhration) © 1312 0 @ 0 7 1 TRIP GAS n/a 1 CUTTING GAS @ @ WIPER GAS 1 4 u CHROMATOGRAPHY (ppm) SURVEY — METHANE (C -1) 17859 @ 1315 0 @ CONNECTION GAS HIGH 5 ETHANE (C -2) 1037 @ 1310 0 C AVG 2 PROPANE (C-3) 1033 @ 1310 0 @ CURRENT 0 BUTANE (C -4) 1965 © 1310 0 @ CURRENT BACKGROUND /AVG 14 u PENTANE (C -5) 1992 @ 1310 00000 0 @ HYDROCARBON SHOWS none Please refer to mud log INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY 24 hour Sand, conglomeratic sand, days, occasional coal PRESENT LITHOLOGY 1800 ft 100 %sand Continue changing out thread damaged HVVDP and saver sub Run in hole, wash from 250 It to 310 ft Doll ahead from 310 R DAILY to 1117 ft Circulate bottoms up X2 at 1117 ft Monitor well Static Blow down top drive Wiper tnp from 1117 ft to 249 It Work ACTIVITY through tight spot at 745 ft with 25k overpull Backream through tight spots at 1044'. 663', 462' due to overpull up to 30k Blow SUMMARY down top drive Service swivel packing and blocks, inspect top drive Run in hole from 249 ft to 1052 ft Wash down from 1052 ft to 1117 ft with no fill Drill ahead from 1117 ft to 1822 It at report time EPOCH PERSONNEL ON BOARD Resch, Bleys + 2 SC_ DAILY COST $7465 REPORT BY Larry Resch • file : / /C: \DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WE... 2/20/2009 El EPOCH 27 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 0 Chevron, USA White Hills Project DAILY WELLSITE REPORT El EPOCH Bluebod< 6-7 -9 REPORT FOR Bradford, Bothner DATE Feb 19, 2009 DEPTH 1822' PRESENT OPERATION Gniling Ahead TIME 2359 hrs YESTERDAY 313' 24 HOUR FOOTAGE 1509' CASING INFORMATION 16" @ 153' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 480' 0 71 31 27 480 11' 786' 0 43 40 02 786 10' SURVEY DATA 1172' 0 49 286.43 1172.07' 1559' 0 52 127 62 1558 65' 1857' 0 24 89 25 1857 38' BIT INFORMATION INTERVAL CONDITION REASON NO SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B /C PULLED 1 12 -1I4" HCC MX -L1X 5159568 1\13,3X15!065 153' 1669' 11 8 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 364 0 @ 961 27 7 @ 1428 170 6 203 6 FTMR SURFACE TORQUE 8436 @ 1287 123 @ 394 2436 3 1741 AMPS WEIGHT ON BIT 31 @ 784 1 @ 1630 14 6 7 8 KLBS ROTARY RPM 102 @ 1245 37 @ 315 75 4 99 RPM PUMP PRESSURE 2311 @ 1542 981 @ 318 1786 2 1793 PSI DRILLING MUD REPORT DEPTH 1677' MW 92 VIS 89 PV 14 YP 26 FL 13 0 Gels 24/73/- CL- 450 FC 2 SOL 6 5 SD 0 75 OIL -/93 3 MBL 10 0 pH 8 7 Ca+ 40 CCI MWD SUMMARY INTERVAL 153' TO Current TOOLS Tn -cone milled tooth he with mud motor, ARC -8, ISONIC GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 151(calibration) @ 1312 0 @ 0 7 1 TRIP GAS nta CUTTNNC GAS @ @ WIPER GAS 1 4 u CHROMATOGRAPHY(ppm) SURVEY — METHANE (C -1) 17859 © 1315 0 @ CONNECTION GAS HIGH 5 ETHANE (C -2) 1037 @ 1310 0 @ AVG 2 PROPANE (C -3) 1033 © 1310 0 @ CURRENT 0 BUTANE (C -4) 1965 @ 1310 0 @ CURRENT BACKGROUND /AVG 14 u PENTANE (C -5) 1992 @ 1310 00000 0 @ HYDROCARBON SHOWS none Please refer to mud log INTERVAL LITHOLOGYIREMARKS GAS DESCRIPTION LITHOLOGY 24 hour Sand, conglomeratic sand, days, occasional coal PRESENT LITHOLOGY 1800 tt 100%sand Continue changing out thread damaged HWDP and saver sub Run in hole, wash from 250 ft to 310 ft DnII ahead from 310 ft DAILY to 1117 ft Circulate bottoms up X2 at 1117 ft. Monitor well Static Blow down top drive Wiper tnp from 1117 ft to 249 ft Work ACTIVITY through tight spot at 745 ft with 25k overpull Backream through tight spots at 1044', 663', 462' due to overpull up to 30k Blow SUMMARY down top c - we Service swivel packing and blocks, inspect top drive Run in hole from 249 ft to 1052 ft. Wash down from 1052 ft to 1117 ft with no fill Drill ahead from 1117 ft to 1822 It at report time EPOCH PERSONNEL ON BOARD Resch, Bleys + 2 SC_ DAILY COST $7465 REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SE'1 "IINGS\EPOCHADMIN\MY DOCUMENTS \MY WE... 2/20/2009 El EPOCH 28 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 Chevron, USA Wfiite Hills Protect DAILY WELLSITE REPORT 1E1 EPOCH Bluebuck 6 -7 -9 REPORT FOR Bradford, Bothner DATE Feb 20. 2009 DEPTH 1930' PRESENT OPERATION Circulating at Casing Pant TIME 2359 hr5 YESTERDAY 1822' 24 HOUR FOOTAGE 108' CASING INFORMATION 16' @ 153' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 1857' 0 24 89 25 1857.38' BIT INFORMATION NTERVAL CONDITION REASON NO_ SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B /C PULLED 1 12 -1/4" HCC MX -L1X 5159568 1X13,3X15r0 65 153' 1930' 1777' 12 3 Csg Pt DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 274 3 @ 1831 68 4 @ 1832 222 9 194 4 FT/HR SURFACE TORQUE 7075 @ 1835 1386 @ 1883 3339 7 4561 AMPS WEIGHT ON BIT 25 @ 1915 3 @ 1824 00000 13.3 24 7 KLBS ROTARY RPM 103 @ 1871 99 @ 1929 101 7 99 RPM PUMP PRESSURE 2389 @ 1916 1793 @ 1822 2187 6 2378 PSI DRILLING MUD REPORT DEPTH Na at report time MW VIS PV YP FL Gels CL- FC SOL SD OIL MBL pH Ca. CCI MWD SUMMARY INTERVAL 153' TO 1930' TOOLS Tn -cone milled tooth bit with mud motor, ARC -8. ISONIC GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 9 @ 1865 3 @ 1927 64 TRIP GAS n/a CUTTING GAS @ @ WIPER GAS 32 u CHROMATOGRAPHY(ppm) SURVEY — METHANE (C -1) 1526 @ 1865 626 © 1927 1041 0 CONNECTION GAS HIGH 0 ETHANE (C -2) 0 @ @ AVG 0 PROPANE (C -3) 0 @ @ CURRENT 0 BUTANE IC -4) 0 @ @ CURRENT BACKGROUND /AVG 9 u while dnllirg PENTANE (C-5) 0 © @ HYDROCARBON SHOWS None INTERVAL LITHOLOGYIREMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY Dnll ahead from 1822 ft to casing point at 1930 ft Circulate bottoms up twice Monitor well Staticf< Blow down top drive, pull DAILY out of hole from 1930 ft to 1117 It Backream through 1335 ft due to swabing Monitor well at 1 11 7 t Static Run back in ACTIVITY hole from 1117 ft to 1889 ft Wash down from 1889 ft to 1930 ft with no fill encountered Ciruualte bottoms up x4 Epoch SUMMARY records 32 units wiper gas maximum Pull out of hole from 1930 It to 185 ft Monitor well Static Lay down mud motor and bit PJSM with Weatherford to run 9 -5/8" casing Rig up to run 9-5/8" 400 L -80 BTC casing Run same from surface to 1879 79 ft Epoch records 17 units maximum trip gas Gas steadies at 3 units while circulating at report time EPOCH PERSONNEL ON BOARD Resch, Bleys + 2 SC COST 56465 (1 tech to town) REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SETTINGS \EPOCHADMIN \MY DOCUMENTS \MY WE... 2/21/2009 HI EPOCH 29 Chevron NW Bluebuck 6 - - Daily Report Page 1 of 1 40 Chevron, USA White Hifls Protect DAILY WELLSITE REPORT E EPOCH Bluebuck 6 -7 -9 REPORT FOR Bradford, Bothner DATE Feb 21, 2009 DEPTH 1930' PRESENT OPERATION Prepare for SOP Tests TIME 2359 hrs YESTERDAY 1930' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" @ 1916' SURVEY DATA DEPTH MVCLKJATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ FT /HR SURFACE TORQUE @ @ AMPS V€KHT ON BIT @ @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE @ @ PSI DRILLING MUD REPORT DEPTH 1930' MW 9.4 VIS 47 PV 15 YP 9 FL 13.0 Gels 5/25/- CL- 1000 FC 2 SOL 7 9 SD 0 75 OIL -191 8 MBL 2 5 pH 9 2 Ca+ 600 CCI MWD SUMMARY INTERVAL TO • TOOLS No tools in hole this period GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS 17 u w/ csg CUTTING GAS © @ VIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) @ @ CONNECTION GAS HIGH ETHANE (C -2) @ @ AVG PROPANE (C -3) @ @ CURRENT BUTANE (C -4) @ @ CURRENT BACKGROUND/AVG PENTANE(C -5) @ @ HYDROCARBON SHOWS No new footage drilled INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage dated this period PRESENT LITHOLOGY Continue casing operations Pick up landing joint and hangar Land on depth Lay down landing joint, change out handing equipment, blow down top drive Make up stab in adapter Run in hole to 1833 ft, sting on depth Rrg up cement head and lines Circulate and condition, staging to 170 gpm at 185 psi Cement operations pump 10 bids water, test cement lines to DAILY 4000 psi Good test Pump 17 bbl 10 ppg spacer, 433 bbl 10 7 ppg Type -L lead cement, 70 bbl 15 8 ppg Type -G tail cement, ACTIVITY displace with 19 bbl 9.5 ppg spud mud Check floats Good Cement in place at 1100 hrs Blow down/rig down cement lines SUMMARY and head, drain stack; lay down landing Joint, dean out cement stinger PdI out of hole 28 stands from 1830 ft Tnp in hole, wash and dran stack, make up pack off, run in pack off, set and test Nipple down diverter system, npple up BOP's Clean mud pits #1, 2, 3. Set test plug, re -build blind rams, replace door seals Hook up Koomey lines Clean mud pts #4, 6 Install suction valves in mud pit #4_ EPOCH PERSONNEL ON Resch, Foradas + 2 DAILY $6465 (second tech leaves for town BOARD SC_ COST today) REPORT BY Larry Resch • file: / /C: \Documents and 'Settings \EpochAdmin \Desktop \20090220.htm 2/22/2009 HI EPOCH 30 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA Waite Hills Project DAILY WELLSITE REPORT El I EPOCH BlueburS 6-7 -9 REPORT FOR Bradford, Bothner DATE Feb 22, 2009 DEPTH 1930' PRESENT OPERATION Prepare to dnli on cement TIME 2359 hrs YESTERDAY 1930' 24 HOUR FOOTAGE 0' CASING INFORMATION 9-5/8" @ 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT NVFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED 2 8 -1/2" HYC DS619 6365 6)(12/0 66 1930' DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ FT /HR SURFACE TORQUE @ @ AMPS WEIGHT ON BIT @ @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE lad @ PSI DRILLING MUD REPORT DEPTH 1930' NOTE Changed over to KCI Polymer Mud MW 9.4 VIS 45 PV 15 YP 9 FL 13 0 Gels 6/21/- CL- 1100 FC 2 SOL 7 9 SD 0 75 OIL -/91 8 MBL 2 5 pH 9 1 Ca+ 800 CCI MWD SUMMARY INTERVAL 1930' TO • TOOLS PDC bit with mud motor, EcoScope, 'SONIC GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRP GAS CUTTNVG GAS @ iiiYi WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C - 1) @ @ CONNECTION GAS HIGH ETHANE (C -2) @ @ AVG PROPANE (0 -3) @ @ CURRENT BUTANE (C -4) @ cl CURRENT BACKGROUND /AVG PENTANE (C -5) @ @ HYDROCARBON SHOWS No new footage skilled this period INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY No new footage dnlled this period PRESENT LITHOLOGY Continue preparation to test BOP's Heat water for testing, clean and clear rig floor and ceear Rig up accumulator lines to annular preventer, charge accumulator Rig up test equipment Pick up test joint, make up floor valves to test joint, thaw annulus, hunk in cellar due to freezing temperatures Flood stack and choke with water Continue to clean pts Dress mud pumps with 5- DAILY 1/2 liners and swabs PJSM for testing BODE Test GOP's at 250 psi low, 2500 psi high Tests witnessed by AOGCC Lou ACTIVITY Gimald, CVX DSM Jason Bradford and NAD TP Mike Spaulding Encourter problems with 2" kill line isolation valve Test bag, SUMMARY BOP, Kill HCR Repair k8l line 2" Oteco and test Pressure test casing/shoe Pull test plug and sucessfcly test casing to 2000 psi for 30 minutes Re- Install test plug and successfully test mud isolation valve Install wear bushing, blow down test hose NAD installs Epoch 1502 sensor on test manifold Epoch records and charts al futher BOP tests Blow down choke, test manifolds and set pop offs to 3000 psi PJSM for picking up BHA and loading nuclear source for MWD Tnp in hole with same and pulse test at 485 gym Blowing down top drive at report time EPOCH PERSONNEL ON BOARD Resch, Foradas + 2 SC_ DAILY COST $5465 REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SE'1"1'INGS \EPOCHADMIN\MY DOCUMENTS \MY WE... 2/23/2009 El EPOCH 31 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT El I EPOCH Bluebuck 6 -7 -9 REPORT FOR Bradford, Bothner DATE Feb 23. 2009 DEPTH 3438' PRESENT OPERATION Dolling Ahead TIME 2359 hrs YESTERDAY 1930' 24 HOUR FOOTAGE 1508' CASING INFORMATION 9 -5/8" @ 1916' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 1947' 0 57 56 35 1947 32' 2461' 0 39 58 19 2460 95' SURVEY DATA 2849' 020 62 49 2848 55' 3299' 0 37 58 25 3298 74' 3686' 0 45 52 45 3685 53' BIT t\1FORMATION INTERVAL CONDITION REASON NO SIZE TYPE SIN JETS NJ OUT FOOTAGE HOURS TJB/C PULLED 2 8 -1/2" HYC DS619 206365 6X1240 66 1930' 1930' 10 4 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 291 3 @ 2008 16 6 @ 1956 149 6 61 7 FT /HR SURFACE TORQUE 6658 @ 2834 196 @ 3155 1 230 5 1925 AMPS WEIGHT ON BIT 14 @ 1955 1 @ 3141 3 6 7 8 KLBS ROTARY RPM 99 @ 3244 50 @ 1957 74 3 90 RPM PUMP PRESSURE 1897 @ 2834 1 178 @ 1959 1490 4 1673 PSI DRILLING MUD REPORT DEPTH 3407' MW 9 2 VIS 46 PV 14 YP 16 FL 3 5 Gels 9/14/16 CL- 31k III FC 1 SOL 4 0 SD 0 75 01 93.5 MBL 7 5 pH 9 2 Gam CC MVO SUMMARY INTERVAL 1930' TO Current TOOLS PDC bit with mud motor, EcoScope, ISONIC ■ GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS 137 @ 2680 0 @ 31 3 TRIP GAS n/a CUTTING GAS @ @ WPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY — METHANE (C -1) 27380 @ 2680 00000 1 @ 1935 00000 5638 4 CONNECTION GAS HIGH 0 ETHANE (C -2) 0 @ @ AVG PROPANE (C -3) 0 @ @ CURRENT 0 BUTANE (C -4) 0 @ @ CURRENT BACKGROUND /AVG 15 units off bottom PENTANE (C -5) 0 @ @ HYDROCARBON SHOWS Please refer to mud log INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY 24 hour sandstone with significant clay matrix, sandy claystone PRESENT LITHOLOGY 3400 t 1 00 %argllaceous sandstone Continue running in hole from 310 ft to 1829 R. Drill out shoe track and 20 ft of new hole from 1832 ft to 1950 ft. Circulate and DALY condition hole, even mud weight in/out at 9 35 ppg Perform FIT Pump through kill line, 9 3 ppg mud at 1950 ft to 14 8 ppg ACTIVITY EMW Blow down kill line Displace to KCl/Polymer mud to 9 0 ppg in/out Change out shaker screens and clean ditches SUMMARY Trouble shoot Schksmberger stand pipe pressure sensor Dnll ahead from 1950 ft to 24901 ft at 75k U/D wt, 29 WOE, 74 RPM, 500 gm', 1490 psi on/1400 psi off ECD = 10 69 ppg Drill ahead from 2491 ft to 3438 ft at report time EPOCH PERSONNEL ON BOARD Resch, Foradas + 2 SC_ DAILY COST $5465 REPORT BY Larry Resch ID file: / /C:\DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS 1MY WE... 2/24/2009 E EPOCH 32 Chevron O Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA kMrnte Hills Project DAILY WELLSITE REPORT HI EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Bothner, Hubbard DATE Feb 25, 2009 DEPTH 4500' PRESENT OPERATION POOH for wire line figs TIME 2359 hrs YESTERDAY 3438' 24 HOUR FOOTAGE 1062' CASMNG INFORMATION 9 -5/8" @ 1916' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 3814' 0 35 46 32 3813 52' 4071' 0 29 22 86 4071 02' SURVEY DATA 4199' 034 18 69 4199 12' 4329' 0 37 337 26 4328 72' 4393' 0 45 316 28 4393 01' BIT NEORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED 2 8 -1/2" HYC DSfi19 206365 6X12/0 66 1930' 4500' 2570' 18 3 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 262 0 &L? 4018 6 7 @ 3702 149 8 43 4 FT /HR SURFACE TORQUE 9344 @ 4403 25 rz 3746 2001 9 1005 AMPS WEIGHT ON BIT 19 @ 4326 2 @ 3752 8 2 348 KLBS ROTARY RPM 107 @ 3759 90 @ 3438 100 6 104 RPM PUMP PRESSURE 2170 @ 4403 1483 @ 3567 1818 4 1818 PSI DRILLING MUD REPORT DEPTH 4500' MW 9.25 VIS 47 PV 14 YP 19 FL 4 2 Gels 9/13/16 CL- 321< • FC 1 SOL 4.3 SD 0 75 OIL 193 1 MBL 5 0 pH 9 5 Ca* 180 CCI Mv4D SUMMARY INTERVAL 1930' TO 4500' TOOLS PDC bit wth mud motor, EcoScope, ISONKC GAS SUMMAR Y (units) HIGH LOW AVERAGE DITCH GAS 274 @ 4011 2 @ 4024 55 4 TRIP GAS n/a CUTT PAC- GAS @ @ WIPER GAS 30 U CHROMATOGRAPHY (ppm) SURVEY -- METHANE (C -1) 43393 @ 4011 447 @ 4024 9080 5 CONNECTION GAS HIGH 0 ETHANE (C -2) 169 @ 4011 0 @ 3 1 AVG PROPANE (C -3) 0 @ @ CURRENT 0 BUTANE (C-4) 0 @ @ CURRENT BACKGROUND/AVG 15 -20 while circulating PENTANE (C -5) 0 @ @ HYDROCARBON SHOWS Please refer to mud log INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY 24 hour Drty sandstone, sandy claystone PRESENT LITHOLOGY 4500 It 100% sandy claystone Continue dulling ahead from 3438 ft to 4050 ft Circulate and condition at 4050 ft whale changing out pop off on mud pimp #2 DALY Dnll ahead from 4050 ft to 4500 ft TD EGG = 10 21 ppg Circulate and condtion hole Short trip fro 4500 ft to inside shoe at ACTIVITY 1829 ft Worked through tight spots at 3860 ft pulling 20k over, 3777 ft pulhng 15k over Run back in hole from 1829 ft to 3187 SUMMARY ft Circulate and condition hole Continue trip in hole from 3187 ft to4403 ft Kelly up, wash and ream from 4403 ft to 4499 ft Find 60 ft fill Epoch records 40 units maximum wiper tnp gas Circulate and condition while working pipe at report time EPOCH PERSONNEL ON BOARD Resch, Foradas + 2 SC DAILY COST $5465 REPORT BY Larry Resch 411 file: / /C: \DOCUMENTS AND SE'1`11NGS \EPOCHADMIN\MY DOCUMENTS \MY WE... 2/25/2009 El EPOCH 33 Chevron I WO I WO Bluebuck 6 -7 -9 Daily Report Page 1 of 1 Ill Chevron, USA White hills Project DAILY WELLSITE REPORT HI EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE Feb 25, 2009 DEPTH 4500' PRESENT OPERATION Wire line logging TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" @ 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /BIC PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION FT /HR • SURFACE TORQUE r_, _ AMPS WEIGHT ON BIT Q s, KLBS ROTARY RPM tg a RPM PUMP PRESSURE n _ PSI DRILLING MUD REPORT DEPTH 4500' MW 933 VIS 48 PV 14 YP 19 FL 4.5 Gels 7/9/11 CL- 32K FC 1 SOL 4.7 SD 0.75 OIL 0.2/92.5 MBL 6.5 pH 9.2 Ca+ 180 CCI MWD SUMMARY S INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS n CUTTING GAS WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) @ la CONNECTION GAS HIGH ETHANE (C -2) @ Q AVG PROPANE (C -3) © @ CURRENT n/a BUTANE (C -4) CO CURRENT BACKGROUND /AVG <1 u circ over top of hole PENTANE (C -5) @ 0 HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY Blow down top drive. Pull out of hole from 4467 ft to 1893 ft. Monitor well: Static. Continue trip out of hole from 1893 ft DAILY to 248 ft. Monitor well: Static. Conduct PJSM before laying down BHA and removing nuclear sources. Finish trip out of ACTIVITY hole from 248 ft to bank. Lay down Schlumberger tools. Rig up Baker wire line equipment. Make up wire line tool SUMMARY string. Run Grand Slam log. Run MREX log. Rig crews hazzard hunt and chase rats: Clean pit area; service mud pump # 1 and #2; remove all mud products from pits; complete straping and drifting all tubing; clean choke house, wind walls. Discuss BOP plan /drill for wire line logging. EPOCH PERSONNEL ON Resch, Foradas + 2 DAILY $5465 (last day for sample BOARD SC COST catchers) REPORT BY Larry Resch • file: / /C:\DOCUMENTS AND SETTINGS\EPOCHADMIN\MY DOCIJMENTS\MY WE... 2/26/2009 [l EPOCH 34 Chevron I OW I OW Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT PI EPOCH Bluebuck 6-7 -9 REPORT FOR Hurt, Hubbard DATE Feb 26, 2009 DEPTH 4500' PRESENT OPERATION Wire line Logging TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" 0 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION Q 0 FT /HR SURFACE TORQUE _ ? AMPS WEIGHT ON BIT Q © KLBS ROTARY RPM Q r. RPM PUMP PRESSURE a a PSI DRILLING MUD REPORT DEPTH n/a at report time MW VIS PV YP FL Gels CL- FC SOL SD OIL MBL pH Ca+ CCI MWD SUMMARY • INTERVAL TO TOOLS No tools in hole this period GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS r. @ TRIP GAS CUTTING GAS n @ WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) 0 0 CONNECTION GAS HIGH ETHANE (C -2) r. @ AVG PROPANE (C -3) © CO CURRENT BUTANE (C-4) 0 © CURRENT BACKGROUND /AVG PENTANE (C -5) HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY DAILY ACTIVITY Continue running open hole logs. Complete MREX logs. Pick up and run side wall core. Lay down core barrel and SUMMARY RCOR tool string. Surface test VSP equipment; pick up VSP tool string; run in hole with VSP tool. Conduct VSP log. Lay down VSP tool; make up RCI wireline log EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $5215 REPORT BY Larry Resch • file: / /C:\DOCUMENTS AND SETTINGS\EPOCHADMIN\MY DOCUMENTS \MY WE... 2/27/2009 U EPOCH 35 Chevron IWO Bluebuck 6 -7 -9 Daily Report Page 1 of 1 III Chevron, USA White Hills Project DAILY WELLSITE REPORT El EPOCH Bluebuck 6-7 -9 REPORT FOR Hurt, Hubbard DATE Feb 27, 2009 DEPTH 4500' PRESENT OPERATION Open Hole Logging TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9-5/8"@ 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ a FT /HR SURFACE TORQUE _ AMPS WEIGHT ON BIT CP Q KLBS ROTARY RPM @ Q RPM PUMP PRESSURE iit Q PSI DRILLING MUD REPORT DEPTH 4500' MW 9.3 VIS 51 PV 16 YP 23 FL 4.2 Gels 9/10/11 CL- 33k FC 1 SOL 4.6 SD 0 75 OIL 0.2/92.5 MBL 7.0 pH 9.3 Ca+ 120 CCI MWD SUMMARY INTERVAL TO III TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS r @ TRIP GAS CUTTING GAS ? Itgl WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) a a CONNECTION GAS HIGH ETHANE (C-2) '_IL 0 AVG PROPANE (C -3) a a CURRENT BUTANE (C -4) 14 @ CURRENT BACKGROUND /AVG PENTANE (C -5) _. HYDROCARBON SHOWS No new footage drill this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY DAILY Continue open hole logging. Change out RCI tool due to failure. Rig up and run in hole with RCI pressure tool. Log ACTIVITY same. Rig down wire line tools and sheaves. Rig up for drill pipe conveyed RCI tests Conduct surface and SUMMARY downhole tool tests. Rig crews chasing rats and doing house cleaning. Epoch monitors pit levels and gas at possum belly; EOW report EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $5215 REPORT BY larry Resch III file: / /C:\DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WE... 2/28/2009 U EPOCH 36 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT Ell EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE Feb 28, 2009 DEPTH 4500' PRESENT OPERATION Drill pipe conveyed logging TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" @ 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION s FT /HR SURFACE TORQUE AMPS WEIGHT ON BIT c, KLBS ROTARY RPM CP n RPM PUMP PRESSURE a Q PSI DRILLING MUD REPORT DEPTH 4500' MW 9.3 VIS 70 PV 21 YP 29 FL 4.5 Gels 9/11/13 CL- 32k FC 1 SOL 4.7 SD 0.75 OIL 0.2/92.5 MBL 7.5 pH 9.3 Ca+ 200 CCI MWD SUMMARY • INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS (g2 @ TRIP GAS 38 u max CUTTING GAS Q WIPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY n/a METHANE (C -1) @ CONNECTION GAS HIGH n/a ETHANE (C -2) AVG PROPANE (C -3) CURRENT BUTANE (C -4) CURRENT BACKGROUND /AVG 2 -3 units PENTANE (C -5) HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY Continue open hole logging. Lay down wire line tools Pick up sample chambers; troubleshoot sampling tool. Total DAILY logging string lenght 140.29 ft. Change out wireline head to drill pipe conveyed head. Trip in hole rabitting and ACTIVITY steaming pipe to 2200 ft. Pick up drill pipe single; make up cross overs and side entry sub. Break circulation at 2 bpm SUMMARY at 25 psi. Reinstall wireline: Wireline jumped sheave. Continue trip in hole from 2200 ft to 4110 ft. breaking circulation every 10 stands at 2 bpm at 25 psi. Conduct RCI drill pipe conveyed logging at 4110 while circulating at 2 bpm and 33 psi. Epoch records a maximum of 38 units of trip gas at 4110 ft. Gas settles to 2 -3 units while circulating at report time. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4340 REPORT BY Larry Resch • file: / /C:\DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/1/2009 Ell EPOCH 37 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT [I EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 1, 2009 DEPTH 4500' PRESENT OPERATION Phase III Weather Shutdown TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" @ 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION (, r. FT /HR SURFACE TORQUE _ AMPS WEIGHT ON BIT KLBS ROTARY RPM RPM PUMP PRESSURE PSI DRILLING MUD REPORT DEPTH 4500' MW 9 3 VIS 53 PV 17 YP 20 FL 4.6 Gels 6/8/9 CL- 32k FC 1 SOL 4.7 SD 0.75 OIL 0.2/92.5 MBL 7.5 pH 9.4 Ca+ 200 CCI MWD SUMMARY INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS @ TRIP GAS n/a CUTTING GAS @ WIPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) CONNECTION GAS HIGH ETHANE (C -2) @ ® AVG PROPANE (C -3) CURRENT BUTANE (C -4) CURRENT BACKGROUND /AVG < 3 unitss while circulating at 2 bpm. PENTANE (C -5) HYDROCARBON SHOWS no new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY DAILY ACTIVITY Circulate at 2 bpm through drill pipe conveyed logs. Safety shut down for Phase III high winds and snow SUMMARY fall. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4340 REPORT BY Larry Resch • file: / /C:\DOCUMENTS AND SETTINGS\EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/2/2009 CI EPOCH 38 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 Chevron, USA White Hills Project DAILY WELLSITE REPORT Ell EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 2, 2009 DEPTH 4500' PRESENT OPERATION Drill Pipe Conveyed Logs TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION % % FT /HR SURFACE TORQUE % _ AMPS WEIGHT ON BIT a KLBS ROTARY RPM % r, RPM PUMP PRESSURE @ PSI DRILLING MUD REPORT DEPTH 4500' MW 9.3 VIS 55 PV 18 YP 19 FL 4.2 Gels 7/10/12 CL- 32k FC 1 SOL 4.7 SD 0.75 OIL 0.2/92.5 MBL 7.0 pH 9.3 Ca+ 180 CCI MWD SUMMARY • INTERVAL TO TOOLS No tools in hole this period GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS a % TRIP GAS n/a CUTTING GAS % WIPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) CONNECTION GAS HIGH ETHANE (C -2) a AVG PROPANE (C -3) a Q CURRENT BUTANE (C-4) % % CURRENT BACKGROUND /AVG 10 -15 units while circulating at 2 bpm PENTANE (C -5) HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY DAILY Continue waiting on weather. Drill pipe conveyed logs in hole; circulating at 2 bpm. At 0530 hours: Blow down top ACTIVITY drive; pull pipe from 4110 ft to 3769 ft Conduct RCI open hole logging at 2 bpm Clear snow from around rig At 1800 SUMMARY hours: Blow down top drive; pull pipe from 3769 ft to 3143 ft; pick up 14.73 ft pup to space out Conduct RCI open hole log circulating at 2 bpm. At 2330 hours: Blow down top drive; prepare to move drill pipe logging tool. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4340 REPORT BY Larry Resch file: / /C:\DOCUMENTS AND SETTINGS\EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/3/2009 El EPOCH 39 Chevron IWO Bluebuck 6 - - Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT HI EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Matherne DATE March 3, 2009 DEPTH 450' PRESENT OPERATION POOH with drill pipe conveyed log tools. TIME 2359 hrs YESTERDAY 450' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" fp 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION FT /HR SURFACE TORQUE Tti AMPS WEIGHT ON BIT a KLBS ROTARY RPM a n RPM PUMP PRESSURE PSI DRILLING MUD REPORT DEPTH 450'/2330 hrs MW 9.3 VIS 55 PV 17 YP 18 FL 4.5 Gels 5/8/10 CL- 32k FC 1 SOL 4.7 SD 0.75 OIL 0.2/92.5 MBL 7.5 pH 9.3 Ca+ 200 CO MWD SUMMARY INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS a a TRIP GAS n/a CUTTING GAS WIPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) CONNECTION GAS HIGH ETHANE (C -2) a r. AVG PROPANE (C -3) a CURRENT BUTANE (C -4) a a CURRENT BACKGROUND /AVG , 5 units while circulating at 2 bpm PENTANE (C -5) @ r' HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY Continue drill pipe conveyed logging. Blow down top drive. Pull pipe from 3143 ft to 2624 ft. Conduct RCI open hole DAILY logging at 2624 ft, circulating at 2 bpm. At 0700 hours: Blow down top drive. Pull pipe from 2624 ft to 2200 ft; lay down ACTIVITY side entry sub. Blow down top drive. Pull pipe from 2200 ft to 1878.75 ft; make up side entry sub. Pump down wet SUMMARY connect; verify wet connect. Blow down top drive. Run in hole 1918 ft to 2175 ft. Conduct RCI open hole log while circulating at 2 bpm. Epoch records a maximum 12 units of gas during the past 24 hours of testing. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 REPORT BY Larry Resch • file: / /C:\DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/4/2009 El EPOCH 40 Chevron ONO Bluebuck 6 - - Daily Report Page 1 of 1 • Chevron, USA White Hill Project DAILY WELLSITE REPORT PI EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 4, 2009 DEPTH 4500' PRESENT OPERATION Testing BOP's TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" Q 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 it! FT /HR SURFACE TORQUE 0 0 AMPS WEIGHT ON BIT a 0 KLBS ROTARY RPM 0 0 RPM PUMP PRESSURE It3 0 PSI DRILLING MUD REPORT DEPTH n/a at report time MW VIS PV YP FL Gels CL- FC SOL SD OIL MBL pH Ca+ CCI MWD SUMMARY • INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS a 0 TRIP GAS n/a CUTTING GAS © 0 WIPER GAS n/a CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) Q 0 CONNECTION GAS HIGH ETHANE (C -2) c, 0 AVG PROPANE (C -3) 0 a CURRENT BUTANE (C -4) ID 0 CURRENT BACKGROUND /AVG , 10 units while circulating at 2 bpm. PENTANE (C -5) 0 HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY DAILY Pull out of hole from 1777 ft to 141 ft. Lay down third party tools. Pick up test tools and prepare to test same. Pull ACTIVITY wear bushing; drain stack, flush lines; pick up test joint and cross overs. Problem with fluid leaking past valves in SUMMARY pump room and back to pits. Rig up Epoch BOP pressure sensor on test manifold. Trouble shoot various problems with BOP tests/leaks. Epoch records and charts all BOP tests. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 REPORT BY Larry Resch • file: / /C:\DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/5/2009 PI EPOCH 41 Chevron NINO NINO Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT El EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 5, 2009 DEPTH 4500' PRESENT OPERATION On the bank TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION r. FT /HR SURFACE TORQUE AMPS WEIGHT ON BIT Q © KLBS ROTARY RPM © RPM PUMP PRESSURE a PSI DRILLING MUD REPORT DEPTH 4500'/1500 hrs MW 9.3 VIS 46 PV 15 YP 16 FL 4.7 Gels 5/5/7 CL- 32k FC 1 SOL 4.7 SD 0.75 OIL 0.2/92.5 MBL 7.5 pH 9.4 Ca+ 200 CCI MWD SUMMARY INTERVAL TO • TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS TRIP GAS 131 and 152 units (2 zones) CUTTING GAS _ © WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) r. © CONNECTION GAS HIGH ETHANE (C -2) ._. AVG PROPANE (C -3) r. CURRENT BUTANE (C-4) _ CURRENT BACKGROUND /AVG < 10 u while circyulating at 3bpm PENTANE (C -5) HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY Completed BOP tests, Install wear bushing; slip and cut drill line. Trip in hole from surface with bit, bit sub bored for DAILY float, spiral drill collar, jars and HWDP on 4" drill pipe. Break circulation at 2862 ft and 3313 ft. at 5 bpm and 80 psi. ACTIVITY Continue trip in hole: Tagged up at 4470 ft. Wash and ream from 4342 ft to 4084 ft; pull 10 -15k over, swabbing at 4318 SUMMARY ft. Kelly up: Pump at 5 bpm, 300 psi, 20 rpm, 500 torque. Epoch records trip gas of 131 units and 152 units from (2) zones. Blow down top drive. Pull out of hole from 4084 ft to 1897 ft. Monitor well in shoe; tie service loops together Continue trip our of hole from 1897 ft to surface. Begin making up and picking up drill pipe conveyed logging tools. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 REPORT BY Larry Resch • file: / /C:\DOCUMEETTTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/6/2009 El EPOCH 42 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT HI EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 6, 2009 DEPTH 4500' PRESENT OPERATION Drill pipe conveyed log TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" @ 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION FT /HR SURFACE TORQUE AMPS WEIGHT ON BIT KLBS ROTARY RPM a RPM PUMP PRESSURE PSI DRILLING MUD REPORT DEPTH 450071500 hrs MW 9.35 VIS 55 PV 16 YP 18 FL 5.4 Gels 5/6/7 CL- 32k FC 1 SOL 5.0 SD 0.75 OIL 0.2/92.2 MBL 7.5 pH 9.3 Ca+ 200 CCI MWD SUMMARY • INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS TRIP GAS 13 u max CUTTING GAS WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) © CONNECTION GAS HIGH ETHANE (C -2) AVG PROPANE (C -3) @ CURRENT BUTANE (C -4) _ CURRENT BACKGROUND /AVG < 20 u while circulating at 2.5 bpm PENTANE (C -5) HYDROCARBON SHOWS No new footage drilled during this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled during this period. PRESENT LITHOLOGY Pick up logging tools for drill pipe conveyed logs. Run in hole with logging tools on 4" drill pipe from 143.07 ft to 1881 ft. Break circulation and pump at 2 bpm. Rig up side entry sub, wireline sheaves and wireline Continue trip in hole from DAILY 1881 ft to 3779 ft, breaking circulation every 10 stands at 2 bpm. Make up side entry sub; pump down wet connect at 6 ACTIVITY bpm and 321 psi. Establish connect; blow down top drive. Continue trip in hole from 3779 ft to 4190 ft breaking SUMMARY circulation every 10 stands at 2 bpm. Conduct RCI open hole logging at 4190 ft. Take sample at 4103 ft. Circulate at 2.5 bpm, 20 -30 psi. Flag off drill floor for wireline. Epoch records 13 units of trip gas. Background gas drops to 5 units and slowly increases to 17 units while circulating at 2.5 bpm at report time. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SETTINGS \EPOCHADMINMY DOCUMENTS `/MY WEL... 3/7/2009 Ell EPOCH 43 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT El EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 7, 2009 DEPTH 4500' PRESENT OPERATION Prep to run 4 -1/2" liner TIME 2359 hrs YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 16" 1916' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION _ FT /HR SURFACE TORQUE @ AMPS WEIGHT ON BIT @ KLBS ROTARY RPM 11 RPM PUMP PRESSURE PSI DRILLING MUD REPORT DEPTH 4500'/1500 hrs (note' Final mud report) MW 9.3 VIS 47 PV 15 YP 17 FL 5.0 Gels 5/6/7 CL- 30k FC 1 SOL 4.9 SD 0.75 OIL 0.2192.5 MBL 7.5 pH 9 3 Ca+ 200 CCI MWD SUMMARY • INTERVAL TO TOOLS No tools in hole this period. GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS TRIP GAS n/a CUTTING GAS @ _ WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) @ @ CONNECTION GAS HIGH ETHANE (C -2) @ @ AVG PROPANE (C -3) @ CURRENT BUTANE (C-4) @ @ CURRENT BACKGROUND /AVG 17 units, increasing to 36 units before POOH PENTANE (C -5) r @ HYDROCARBON SHOWS No new footage drilled this period. INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY No new footage drilled this period. PRESENT LITHOLOGY Continue open hole RCI log at 4190 ft, sample at 4103 ft. Circulate at 2.5 bpm and 53 psi. Epoch records 17 units DAILY background gas at 0001 hours, steadily increasing to 36 units at 1200 hours prior to POOH. Daily activity includes ACTIVITY HSE; rig condition audit; rat killing. Pull out of hole at 1430 hours from 4190 ft to 3788 ft. Rig down a -line sheaves, SUMMARY side entry sub, crossovers. Continue trip out of hole from 3788 ft to 143 ft. Lay down logging tools. Epoch scrapes fluid samples from logging tool casing for Chevron engineer; photos taken for DSM Floyd Hurt. Prepare tools and conduct PJSM for running liner. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WEL... 3/8/2009 Pi EPOCH 44 Chevron Bluebuck 6 - - Daily Report Page 1 of 2 • Chevrons, USA White Hills Po)ect DAILY WELLSITE REPORT El EPOCH Bluebuck 6-7 -9 REPORT FOR Hurt, Hubbard DATE March 8. 2009 DEPTH 4500' PRESENT OPERATION Weather safety shutdown TftIE 2359 his YESTERDAY 4500' 24 HOUR FOOTAGE 0' CASING INFORMATION 9-5/8" @ 19161 _ 4 -1/2" @ 4450' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T/B /C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ FT /HR SURFACE TORQUE @ @ AMPS WEIGHT ON BIT @ @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE @ @ PSI DRILLING MUD REPORT DEPTH Ma MW VIS PV Y'P FL Gels CL- FC SOL SD 01 MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS No tools in hole this period • GAS SUMMARY tunas) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS 388 unts while circulating at casing point CUTTING GAS @ @ WIPER GAS CHROMATOGRAPHY SURVEY (ppm ) METHANE (C -1) @ @ CONNECTION GAS HIGH ETHANE (C-2) a@ @ AVG PROPANE (C-3) @ @ CURRENT BUTANE (C -4) @ @ CURRENT 10 units dropping to < 2 unts while circulating over BACKGROUND/AVG cement PENTANE (C -5) @ @ HYDROCARBON SHOWS N o new footage drilled this penod INTERVAL LITHOLOG YiREMARKS GAS DESCRIPTION LITHOLOGY No new footage dnlled this period PRESENT LITHOLOGY Casing operations Make up shoe trade to 174 ft, Baker lock float equipment Floats check good Run 4 -1/2" IBTM L -80 12 6# tubing from 174 It to 2666 ft Ran 5 centralizers, all connections torqued to 3k Make up setting sleeve; change out handing equipment, pick up/make up liner hanging assembly Circulate and condition at 2770 E staging pump to 4 bprri at 50 psi Continue top in hole from 2770 E to 4378 ft Rabbet out of derrick Wash down from 4378 ft to 4463 ft Blow down top dove DAILY Install cement lines, pick: up 15 ft pup, pick up cement head C rculate and condition at 4 bpm and180 psi Epoch records 388 ACTIVITY units maximum trip gas at bottoms up Install cement lines, pump 2 bbls and pressure test Ines to 5000 psi Cement operations SUMMARY Pump 8 bbls water, chase with 30 bbls dual spacer at 10 ppg, pump 208 bbls 11 5 ppg Econoide cement. Drop wiper dart at 1548 hours and chase with 2 bbls water Pump 17 bbls mud Bump plug at 500 psi over: check floats Make up liner setting sleeve Pressure up to 2600 psi, hold Pressure up to 4000 psi, bleed off Set 15k down on packer, poll 9k over, set to string weight; rotate 15 turns to set hangar Rig down lines and cement head Circulate cement/displace, drop weer bail, circulate hole clean at 7 bpm at 80 -90 psi No cement returns to surface At 1900 hours begn circulating at 4 bpm while intiating safety shut down due to Phase Ili weather conditions EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 • file:/ /C: \Documents and Settings \EpochAdmin \Desktop \20090224.htm 3/9/2009 El EPOCH 45 Chevron Iwo Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA White Hills Project DAILY WELLSITE REPORT U EPOCH Bluebuck 6 -7 -9 REPORT FOR Hurt, Hubbard DATE March 9, 2009 DEPTH 4500' PRESENT OPERATION POOH Sideways TIME 2359 hrs YESTERDAY 4500 24 HOUR FOOTAGE 0' CASING INFORMATION 9 -5/8" @ 1916'_ 4 -1/2" ria 4450' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION FT /HR SURFACE TORQUE AMPS WEIGHT ON BIT KLBS ROTARY RPM r._! RPM PUMP PRESSURE Q PSI DRILLING MUD REPORT DEPTH n/a MW VIS PV YP FL Gels CL- FC SOL SD OIL MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO • TOOLS GAS SUMMARY (units) HIGH LOW AVERAGE DITCH GAS TRIP GAS CUTTING GAS WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) @ r CONNECTION GAS HIGH ETHANE (C -2) AVG PROPANE (C -3) _ CURRENT BUTANE (C -4) CURRENT BACKGROUND /AVG < 5 units when circulating on top of cement. PENTANE (C -5) HYDROCARBON SHOWS INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY Continue safety shutdown for Phase III wind and snow conditions. Circulate over top of cement at .5 bpm, 0 psi. DAILY Begin laying down 4" drill pipe at 1630 hours from 1088 ft to surface. Fill kill and choke lines; pressure test casing to ACTIVITY 2000 psi for 30 minutes. Test witnessed by CVX DSM Floyd Hurt. Rig down test equipment; blow down kill and choke SUMMARY lines. Trip in hole with mule shoe and 17 stands drill pipe. Pull out of hole, laying down 33 joints of 4" drill pipe. Trip in hole with mule shoe and 17 stands drill pipe. EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4400 REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SETTINGS\EPOCHADMIN\MY DOCUMENTS\MY WE... 3/10/2009 EPOCH 46 Chevron Bluebuck 6 -7 -9 Daily Report Page 1 of 1 • Chevron, USA VVYate Hills Project DAILY WELLSITE REPORT [1 EPOCH Bluebuck 6 -7 -9 REPORT FOR Matheme, Bradford DATE March 10, 2009 DEPTH PRESENT OPERATION Phase III safety shutdown TIME 2359 hrs YESTERDAY 24 HOUR FOOTAGE CASING INFORMATION 9-5/8" @ 1916'__ 4 -1/2" @ 4450' SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS TIB/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION @ @ FT /HR SURFACE TORQUE @ @ AMPS WEIGHT ON BIT @ @ KLBS ROTARY RPM @ @ RPM PUMP PRESSURE @ @ PSI DRILLING MUD REPORT DEPTH MW VIS PV YP FL Gels CL- FC SOL SD 01 MBL pH Ca+ CCI MAO SUMMARY INTERVAL TO TOOLS • GAS SUMMARY (units) DITCH GAS HIGH LOW AVERAGE @ @ TRIP GAS CUTTI'IG GAS @ @ WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) @ @ CONNECTION GAS HIGH ETHANE (C -2) @ @ AVG PROPANE (C -3) CURRENT BUTANE (0-4) @ @ CURRENT BACKGROUND /AVG PENTANE (C -5) @ @ HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY Lay down 34 joints of 4" dull pipe Trip in hole wth 8 stands, lay down 22 joints 4" drill pipe Run in hole with 10 stands HVJDP; lay down 20 pints 4" HV1DP Remove wear bushing and pull wear ring Make ir bridge pkig and running tool Run in hole to 268 ft Circulate casing clean Rotate 35 tunas to the nght, pull over 50k shear off, rotate 25 Wins to right, unsling, set down 8k on packer, break out top drive and blow down Rig up head pin, swing, hose to Ha /button Cement OperaWons Pump 5 bbls water, DAILY mix and pump 15 5 bbls Type -C Permafrost cement, displace with 2 bbls water, blow down and rig down lines Pull out of hole ACTIVITY sideways laying down 8 joints 4" drill pipe, lay down running tool Johny wack stack with water, function rams and bag while SUMMARY washing, wack stack again, drain stack, blow through choke and kill, shut blinds and circulate soap water through kill, across and through choke manifold Blow down choke and kill knes, drain stack and poor boy Bleed off Koomey, remove and blow down Koomey Ines Rig down mud manifold, super choke Remove choke and kill lined Blow down mud pump 1 and 2 suction, bleeder and pop off lines, blow down suction /gun lines in mud pits Start nipple down BOP's Start rig down pump room Phase III weather conditions calles at 2200 hours due to high winds and blowing snow EPOCH PERSONNEL ON BOARD Resch, Foradas DAILY COST $4080 REPORT BY Larry Resch filed /C: \DOCUMENTS AND SETTINGS \EPOCHADMIN\MY DOCUMENTS \MY WE... 3/11/2009 U EPOCH 47 Chevron I WO I WO Bluebuck 6 -7 -9 Daily Report Page 1 of 1 II 1 Chevron, USA White Hills Project DAILY WELLSITE REPORT El EPOCH Bluebuck 6-7 -9 REPORT FOR Matherne, Bradford DATE March 11, 2009 DEPTH 0 PRESENT OPERATION Rig Down Operations TIME 2359 hrs YESTERDAY 0 24 HOUR FOOTAGE 0 CASING INFORMATION SURVEY DATA DEPTH INCLINATION AZIMUTH VERTICAL DEPTH BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE S/N JETS IN OUT FOOTAGE HOURS T /B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 'iii 1, FT /HR SURFACE TORQUE ?. @ AMPS WEIGHT ON BIT 0 @ KLBS ROTARY RPM v @ RPM PUMP PRESSURE @ @ PSI DRILLING MUD REPORT DEPTH MW VIS PV YP FL Gels CL- FC SOL SD OIL MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY {units) HIGH LOW AVERAGE DITCH GAS @ @ TRIP GAS CUTTING GAS @ @ WIPER GAS CHROMATOGRAPHY (ppm) SURVEY METHANE (C -1) @ @ CONNECTION GAS HIGH ETHANE (C -2) -- ii @ AVG PROPANE (C -3) _ @ CURRENT BUTANE (C -4) r, @ CURRENT BACKGROUND /AVG PENTANE (C -5) @ @ HYDROCARBON SHOWS INTERVAL LITHOLOGY /REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY Phase III weather conditions continue.; status cancled at 0900 hours. General housekeeping, and light maintenence SUMMARY conducted through safety shutdown. Nipple down and pit cleaning operations resume. Epoch continues rigging down Rig Watch equipment. This will be the final Daily Report submitted for Chevron Bluebuck 6 -7 -9 EPOCH PERSONNEL ON BOARD Resch, Foradas_ DAILY COST $4080 REPORT BY Larry Resch • file: / /C: \DOCUMENTS AND SETTINGS\EPOCHADMIN\MY DOCUMENTS \MY WE... 3/12/2009 U EPOCH 48 • VELOCITY SURVEY REPORT for Union Oil Company of California Well: Blue Buck 6 -7 -9 Field: White Hills Location: White Hills, Alaska S Report Status: FINAL REPORT Authors: Zhigiang Luo Reviewer : Nicholas Dray Date: March 2009 VSFusion, 10300 Town Park Drive, Houston, Texas, 77072, United States. Tel: +1- 832 - 351 -8175, Fax: +1- 832 - 351 -8628 vsfusion A Baker Hughes CGGVemas Company • • In the processing and interpretation of the data, VSFusion employees have relied on experience and have exercised their best judgment. However, since all interpretations are opinions based on inferences from acoustical or other measurements, we cannot and we do not guarantee the accuracy or the correctness of any interpretations. As such, we shall not be liable for any loss, damages or expenses resulting from reliance on such interpretation. • • • S CONTENTS • 1. ACQUISITION AND PROCESSING 1.1 Introduction 1 1.2 Data Acquisition 2 1.3 Data Processing 3 1.3.1 Edit and Stack Raw Data 3 1.3.2 Velocity Survey Computations 3 1.4 Acquisition Parameters 4 2. VELOCITY SURVEY COMPUTATIONS 2.1 Velocity Survey 5 2.2 Source/ Receiver Geometry Table 6 2.3 Time/ Depth Information Table 7 • 2.4 Velocity Table 8 3. INTERPOLATED TABLES 3.1 Linear Depth / Time Listing (Listed every 10 ft) 10 3.2 Linear Time / Depth Listing (Listed every 2 msec) 18 3.3 Time / Depth Abbreviated Listing (Listed every 1 msec) 27 3.4 Depth / Time Abbreviated Listing (Listed every 10 ft) 29 3.5 Depth / Time Information Table 30 4. LIST OF FIGURES Figure 1 Acquisition Parameters 31 Figure 2 Survey Configuration 32 • • 5. LIST OF ENCLOSURES Enclosure 1: Field Engineer's Report • Enclosure 2: Velocity Survey Analysis Plot (250 ft/in) • • Union Oil Company of Calnia Well: Blue Buck 6 -7 -9 1 ACQUISTION AND PROCESSING S 1.1 INTRODUCTION Baker Atlas conducted a Velocity Survey for Union Oil Company of California. in their Blue Buck 6 -7 -9 well, located in White Hills, Alaska. The objective of the velocity survey was to provide time -depth information At the time of the survey, the well had been drilled to a depth 4,475 ft and cased to a depth of 1,916 ft. All measured depths are referenced to the Kelly Bushing (KB.) elevation of 421 ft above MSL. The ground elevation at the wellhead was 400 ft above mean sea level. The well was considered to be vertical in all computations. • • 1 of 32 vs fusion • Union Oil Company of Calif ra Well: Blue Buck 6 -7 -9 1.2 DATA ACQUISITION The survey began at 19:47 hrs on February 26, 2009 and was finished at 22:36 hrs on February • 26, 2009. The source used for the velocity survey was two LRS -315 vibrators which were positioned 250 ft. from the wellhead at an azimuth of 25 degrees from North. The elevation of the source was 400 ft above MSL. A 6- second, linear upsweep, with an 6 to 100 Hz frequency range, was used for the acquisition. A single level 3- component ASR downhole receiver tool was used to record the survey. At the start of the survey, the wireline depth sensor was zeroed at the KB elevation and the tool was lowered down the well. As the tool was lowered down the well, it was stopped at a number of depths to check the equipment performance and depth control before reaching TD. The tool was stopped at 1455, and 4200 ft. KB going down the well until reaching a maximum depth of 4475 ft. KB. Velocity survey recording then proceeded as the geophone was raised to the shallowest station depth of 200 ft. KB. Data was gathered at 29 downhole receiver stations. There were a total of 177 files acquired during the survey. Data was recorded for 4 seconds using a one millisecond sampling rate. The velocity survey configuration is shown on Figure 2. Enclosure 1 contains the Field Engineer's report for the survey. Table 1 is a summary of the survey acquisition information. Table 1: Survey information • Survey Date & Time Date & Time Depth Range Total Source Distance Source Azimuth Source Elev. Type (In) (Out) from KB Files from wellhead from North above SL VS 2/26/09 19:47 2/26/09 22:36 200 — 4475 ft 177 250 ft 25 °N 400 ft Gamma Ray Log Depth check For depth correlation, a gamma -ray wireline tool was placed at the top of the 3- component receiver tool to check on the geophone depth locations. As the receiver descends into the borehole, measurements are taken periodically using the gamma ray tool. Readings from the original wireline gamma ray and the receiver gamma ray are correlated. If a difference between the two gamma ray readings is found, the geophone tool depth is corrected to the original gamma -ray log depth. This ensures that the borehole seismic data will depth tie the wireline logs. Depth correlations were made at the following locations: - 1,470 ft, adjusted depth 1.5 ft - 4,200 ft, adjusted depth 0 ft 1111 2 of 32 vsfusion Union Oil Company of Cali nia • Well: Blue Buck 6 -7 -9 1.3 DATA PROCESSING • 1.3.1 Edit and Stack Raw Data The three component digital data were reformatted and displayed. To determine the true digital start time, the surface reference geophone traces were examined and their onset times were picked. Each downhole geophone trace was subsequently shifted by the first break arrival time of its corresponding reference trace. This shift will reference the downhole geophone traces to the ground level of the source. The downhole geophone traces for each depth level were edited as necessary and then stacked using a median summation algorithm. First peak times were picked for each stacked trace. The Panel 2 of Enclosure 2 displays the stacked raw data for the velocity survey. The vertical component was used for velocity analysis. The accuracy of the depth sensor was checked by comparing the first - arrival times of the same levels occupied during the down and up runs of the tool. The time agreement was found to be acceptable. The data occupied during the down trip of the tool was not used in any of the computations. 1.3.2 Velocity Survey Computations The observed first arrival times at each depth were converted to vertical times and then referenced • to the seismic reference datum (SRD) of sea level using a correction velocity of 13,000 ft/sec. These time -depth pairs were then used as the input data for the velocity survey computations. The computed average, RMS, and interval velocities are listed in Section 2 and displayed in Enclosure 2. The levels at 200, 421, 3135, 3800 and 4105 ft MDKB yielded interval velocities which were not compatible with the adjacent velocities. These levels were omitted from this velocity computations and are denoted on the time / depth listing by an asterisk and on the display by a small red box on the average /interval velocity track. • 3 of 32 vsfusion Union Oil Company of Califfa • Well: Blue Buck 6 -7 -9 1.4 ACQUISITION PARAMETERS Client: Union Oil Company of California Well: Blue Buck 6 -7 -9 • Field: White Hills Location: Alaska Survey Type: Velocity Survey Date Survey Completed: 26 February, 2009 Wireline Contractor: Baker Atlas Casing: 9.625" from 0 to 1,916 ft MDKB Total Depth: 4,475 feet MDKB Elevations: Kelly Bushing Elevation: 421 feet above mean sea level Ground Elevation at Wellhead: 400 feet above mean sea level Seismic Datum: 400 feet above mean sea level Recording System: Format: data Record Length: 4 seconds Sample Rate: 1 msec Geophone Geophone Type: ASR, 3 Component single level Total Number of Levels Occupied: 29 levels • Shallowest Geophone Level: 200 feet (K.B.) Deepest Geophone Level: 4,475 feet (K.B.) Quality of Geophone Breaks: data was noisy Source: Type: Two LRS -315 vibrators Source Elevation: 400 feet above mean sea level Source Location: 250 ft from wellhead with Azimuth 25 °N Sweep: 6 - 100 Hz Sweep Length: 6 seconds Listen Length: 4 Seconds Acquisition Time: Tool in Hole: 19:47 on February 26, 2009 Tool out of Hole: 22:36 on February 26, 2009 Net Operating Time: 2 hours 49 minutes Personnel: Seismic Observer: R. Kleb Client Representative: Qiang Sun • 4of32 V f 1 S usn e Union Oil Company of Cali*nia Well: Blue Buck 6 -7 -9 2 VELOCITY SURVEY COMPUTATIONS • 2.1 VELOCITY SURVEY CLIENT UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 AREA WHITE HILLS, ALASKA CONTRACTOR BAKER ATLAS SURVEY DATE 26 FEB 09 SURVEY UNITS FT RCVR REF. ELEVATION 421.00 FT ABOVE SEA LEVEL DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL KB ELEVATION 421.00 FT ABOVE SEA LEVEL WELL GROUND ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC SOURCE TYPE VIBRATOR GEOPHONE TYPE ANALOG SAMPLE RATE 1.00 MSEC WELL CASING 9.625" FROM 0 TO 1,916 FT • • 5 of 32 vs fusion Union Oil Company of Cali o is Well: Blue Buck 6-7-9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 2.2 SOURCE / RECEIVER GEOMETRY TABLE • RECEIVER REFERENCE ELEVATION = 421.00 FT ABOVE SEA LEVEL SOURCE / RECEIVER COORDINATES ARE REFERENCED TO WELLHEAD SOURCE / RECEIVER (S -R) OFFSET IS PLAN VIEW RECEIVER SOURCE OFFSET MEASURED VERT. X Y ELEV DEPTH X Y (S -R) DEPTH DEPTH COORD. COORD. COORD. COORD. (DGM) (ES) (DS) (FT) (FT) (FT) (FT) (FT) (FT) (FT) (FT) (FT) 200.0 200.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 421.0 421.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 600.0 600.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 800.0 800.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1000.0 1000.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1200.0 1200.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1400.0 1400.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1455.0 1455.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1600.0 1600.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1800.0 1800.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1955.0 1955.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 2000.0 2000.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 2170.0 2170.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 2400.0 2400.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 2620.0 2620.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 2800.0 2800.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 1111 3000.0 3000.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3135.0 3135.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3200.0 3200.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3428.0 3428.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3600.0 3600.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3706.0 3706.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3800.0 3800.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 3935.0 3935.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 4000.0 4000.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 4105.0 4105.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 4200.0 4200.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 4400.0 4400.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 4475.0 4475.0 -0.0 -0.0 400.0 0.0 105.7 226.6 250.0 III 6 of 32 ysfusion Union Oil Company of Caliinia Well: Blue Buck 6 -7 -9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 III 2.3 TIME / DEPTH INFORMATION TABLE ALL TIMES ARE ONE -WAY TIMES * = NOT USED IN VELOCITY COMPUTATIONS DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC MEASURED RAW SRC -REC COS(I) TIME CORRECTION VERTICAL GEOPHONE TIME DIST. TIME DEPTH PICK PLAN -VIEW COS DATUM (DGM) (SRC_REC) (TGD) (FT) (MS) (FT) (MS) (MS) (MS) 200.0 60.9 250.0 0.582 -25.5 0.0 35.5 * 421.0 45.6 250.0 0.848 -6.9 0.0 38.7 * 600.0 58.3 250.0 0.918 -4.8 0.0 53.6 800.0 76.2 250.0 0.952 -3.6 0.0 72.5 1000.0 95.3 250.0 0.969 -3.0 0.0 92.3 1200.0 113.4 250.0 0.978 -2.5 0.0 110.9 1400.0 139.6 250.0 0.984 -2.2 0.0 137.4 1455.0 147.7 250.0 0.985 -2.2 0.0 145.5 1600.0 169.1 250.0 0.988 -2.1 0.0 167.0 1800.0 196.8 250.0 0.990 -1.9 0.0 194.9 1955.0 219.9 250.0 0.992 -1.8 0.0 218.0 2000.0 225.4 250.0 0.992 -1.8 0.0 223.6 2170.0 246.3 250.0 0.993 -1.7 0.0 244.7 • 2400.0 277.4 2620.0 302.2 250.0 0.995 -1.5 0.0 275.9 250.0 0.995 -1.4 0.0 300.8 2800.0 324.8 250.0 0.996 -1.3 0.0 323.5 3000.0 347.4 250.0 0.996 -1.2 0.0 346.1 3135.0 365.5 250.0 0.997 -1.2 0.0 364.3 * 3200.0 370.5 250.0 0.997 -1.1 0.0 369.4 3428.0 396.0 250.0 0.997 -1.1 0.0 394.9 3600.0 417.0 250.0 0.998 -1.0 0.0 416.0 3706.0 428.2 250.0 0.998 -1.0 0.0 427.2 3800.0 439.3 250.0 0.998 -1.0 0.0 438.3 * 3935.0 451.0 250.0 0.998 -0.9 0.0 450.1 4000.0 458.4 250.0 0.998 -0.9 0.0 457.5 4105.0 471.0 250.0 0.998 -0.9 0.0 470.1 * 4200.0 479.8 250.0 0.998 -0.9 0.0 479.0 4400.0 501.0 250.0 0.998 -0.8 0.0 500.2 4475.0 509.0 250.0 0.998 -0.8 0.0 508.2 • 7 of 32 vsfusion Union Oil Company of Califor�iia • Well: Blue Buck 6 -7 -9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 2.4 VELOCITY TABLE • RECEIVER REFERENCE ELEVATION = 421.00 FT ABOVE SEA LEVEL DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC MEASURED DEPTH TIME AVERAGE RMS INTERVAL INTERVAL INTERVAL GEOPHONE CORR. CORR. VELOCITY VELOCITY DEPTH TIME VELOCITY DEPTH TO TO DATUM DATUM (DGM) (DGD) (TGD) (DELDGD) (DELDGT) (FT) (FT) (MS) (FT /SEC) (FT /SEC) (FT) (MS) (FT /SEC) 579.0 53.6 10812.0 600.0 579.0 53.6 10812.0 10812.0 200.0 19.0 10535.1 800.0 779.0 72.5 10739.6 10740.3 200.0 19.8 10098.4 1000.0 979.0 92.3 10602.1 10605.9 200.0 18.6 10781.2 1200.0 1179.0 110.9 10632.0 10635.4 200.0 26.5 7549.0 1400.0 1379.0 137.4 10037.5 10113.8 55.0 8.1 6812.9 1455.0 1434.0 145.5 9858.5 9959.3 145.0 21.6 6717.0 1600.0 1579.0 167.0 9452.6 9602.1 • 200.0 27.8 7184.2 1800.0 1779.0 194.9 9128.5 9295.3 155.0 23.2 6693.8 1955.0 1934.0 218.0 8870.0 9054.6 45.0 5.6 8047.7 2000.0 1979.0 223.6 8849.4 9030.8 170.0 21.1 8070.4 2170.0 2149.0 244.7 8782.3 8952.1 230.0 31.2 7378.7 2400.0 2379.0 275.9 8623.7 8788.5 220.0 24.9 8828.2 2620.0 2599.0 300.8 8640.7 8791.8 180.0 22.7 7919.6 2800.0 2779.0 323.5 8590.0 8733.3 200.0 22.6 8836.1 3000.0 2979.0 346.1 8606.1 8740.1 200.0 23.2 8605.4 3200.0 3179.0 369.4 8606.1 8731.7 228.0 25.5 8933.6 3428.0 3407.0 394.9 8627.2 8744.9 172.0 21.1 8156.8 3600.0 3579.0 416.0 8603.4 8716.0 106.0 11.2 9448.5 3706.0 3685.0 427.2 8625.6 8736.0 229.0 22.9 10000.9 3935.0 3914.0 450.1 8695.5 8804.8 65.0 7.4 8843.3 4000.0 3979.0 457.5 8697.9 8805.4 200.0 21.5 9295.9 4 111 4200.0 4179.0 479.0 8724.8 8828.0 200.0 21.2 9441.3 4400.0 4379.0 500.2 8755.1 8854.9 8 of 32 vsfusion Union Oil Company of Caliiia 411 Well: Blue Buck 6 -7 -9 MEASURED DEPTH TIME AVERAGE RMS INTERVAL INTERVAL INTERVAL GEOPHONE CORR. CORR. VELOCITY VELOCITY DEPTH TIME VELOCITY • DEPTH TO TO DATUM DATUM (DGM) (DGD) (TGD) ( DELDGD) (DELDGT) (FT) (FT) (MS) (FT /SEC) (FT /SEC) (FT) (MS) (FT /SEC) 75.0 8.0 9364.6 4475.0 4454.0 508.2 8764.7 8863.1 • • • 9 of 32 vs fusion Union Oil Company of Calila • Well: Blue Buck 6 -7 -9 3. INTERPOLATED TABLES WELL BLUE BUCK 6 -7 -9 4 11 1 DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC 3.1 DATA INTERPOLATED EVERY 10.00 FT BELOW DATUM DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS (DGD) (TGD) 10.0 0.9 1.8 10812.0 10812.0 10812.0 20.0 1.8 3.7 10812.0 10812.0 10812.0 30.0 2.8 5.5 10812.1 10812.1 10812.0 40.0 3.7 7.4 10812.0 10812.0 10812.0 50.0 4.6 9.2 10812.1 10812.1 10812.1 60.0 5.5 11.1 10812.1 10812.1 10812.1 70.0 6.5 12.9 10812.0 10812.0 10812.0 80.0 7.4 14.8 10812.0 10812.1 10812.1 90.0 8.3 16.6 10812.0 10812.0 10812.0 100.0 9.2 18.5 10812.1 10812.1 10812.1 110.0 10.2 20.3 10812.0 10812.0 10812.0 120.0 11.1 22.2 10812.1 10812.1 10812.0 130.0 12.0 24.0 10812.0 10812.0 10812.0 140.0 12.9 25.9 10812.0 10812.0 10812.0 150.0 13.9 27.7 10812.1 10812.1 10812.0 160.0 14.8 29.6 10812.0 10812.0 10812.0 170.0 15.7 31.4 10812.0 10812.0 10812.0 180.0 16.6 33.3 10812.0 10812.0 10812.0 190.0 17.6 35.1 10812.0 10812.0 10812.0 200.0 18.5 37.0 10812.1 10812.1 10812.1 III 210.0 19.4 38.8 10812.0 10812.0 10812.1 220.0 20.3 40.7 10812.0 10812.0 10812.0 230.0 21.3 42.5 10812.0 10812.0 10812.0 240.0 22.2 44.4 10812.1 10812.1 10812.1 250.0 23.1 46.2 10812.1 10812.0 10812.1 260.0 24.0 48.1 10812.0 10812.0 10812.1 270.0 25.0 49.9 10812.0 10812.0 10812.1 280.0 25.9 51.8 10812.0 10812.0 10812.0 290.0 26.8 53.6 10812.1 10812.1 10812.1 300.0 27.7 55.5 10812.1 10812.0 10812.1 310.0 28.7 57.3 10812.0 10812.0 10812.1 320.0 29.6 59.2 10812.0 10812.0 10812.1 330.0 30.5 61.0 10812.0 10812.0 10812.1 340.0 31.4 62.9 10812.0 10812.0 10812.1 350.0 32.4 64.7 10812.1 10812.1 10812.1 360.0 33.3 66.6 10812.0 10812.0 10812.0 370.0 34.2 68.4 10812.0 10812.1 10812.1 380.0 35.1 70.3 10812.0 10812.0 10812.0 390.0 36.1 72.1 10812.0 10812.1 10812.1 400.0 37.0 74.0 10812.1 10812.1 10812.1 410.0 37.9 75.8 10812.0 10812.0 10812.0 420.0 38.8 77.7 10812.0 10812.1 10812.0 430.0 39.8 79.5 10812.0 10812.0 10812.0 440.0 40.7 81.4 10812.0 10812.1 10812.0 450.0 41.6 83.2 10812.0 10812.0 10812.0 460.0 42.5 85.1 10812.0 10812.1 10812.0 470.0 43.5 86.9 10812.0 10812.1 10812.0 480.0 44.4 88.8 10812.1 10812.1 10812.0 490.0 45.3 90.6 10812.1 10812.1 10812.0 1111 500.0 46.2 92.5 10812.1 10812.0 10812.0 510.0 47.2 94.3 10812.1 10812.1 10812.0 520.0 48.1 96.2 10812.0 10812.0 10812.0 10 of 32 vsfusion Union Oil Company of Caliiia Well: Blue Buck 6 -7 -9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS • (DGD) (TGD) 530.0 49.0 98.0 10812.1 10812.1 10812.0 540.0 49.9 99.9 10812.0 10812.0 10812.0 550.0 50.9 101.7 10812.1 10812.1 10812.0 560.0 51.8 103.6 10812.0 10812.0 10812.0 570.0 52.7 105.4 10812.0 10812.1 10812.0 580.0 53.6 107.3 10811.6 10783.7 10811.6 590.0 54.6 109.2 10806.8 10535.1 10806.8 600.0 55.5 111.1 10802.1 10535.1 10802.2 610.0 56.5 113.0 10797.6 10535.1 10797.8 620.0 57.4 114.9 10793.3 10535.1 10793.5 630.0 58.4 116.8 10789.1 10535.1 10789.4 640.0 59.3 118.7 10785.0 10535.1 10785.3 650.0 60.3 120.6 10781.1 10535.1 10781.4 660.0 61.2 122.5 10777.3 10535.1 10777.7 670.0 62.2 124.4 10773.6 10535.1 10774.0 680.0 63.1 126.3 10770.0 10535.1 10770.5 690.0 64.1 128.2 10766.5 10535.2 10767.0 700.0 65.0 130.1 10763.1 10535.1 10763.7 710.0 66.0 132.0 10759.9 10535.2 10760.4 720.0 66.9 133.9 10756.7 10535.1 10757.2 730.0 67.9 135.8 10753.6 10535.2 10754.2 740.0 68.8 137.7 10750.6 10535.1 10751.2 750.0 69.8 139.6 10747.6 10535.2 10748.3 760.0 70.7 141.5 10744.8 10535.1 10745.4 770.0 71.7 143.4 10742.0 10535.2 10742.7 780.0 72.6 145.3 10738.7 10489.7 10739.4 790.0 73.6 147.2 10730.1 10098.5 10731.0 • 800.0 74.6 149.2 10721.7 10098.3 10722.9 810.0 75.6 151.2 10713.5 10098.5 10714.9 820.0 76.6 153.2 10705.6 10098.3 10707.2 830.0 77.6 155.2 10697.8 10098.5 10699.6 840.0 78.6 157.2 10690.3 10098.3 10692.3 850.0 79.6 159.1 10682.9 10098.5 10685.1 860.0 80.6 161.1 10675.7 10098.3 10678.1 870.0 81.5 163.1 10668.7 10098.5 10671.2 880.0 82.5 165.1 10661.9 10098.3 10664.5 890.0 83.5 167.1 10655.2 10098.5 10658.0 900.0 84.5 169.0 10648.7 10098.3 10651.6 910.0 85.5 171.0 10642.3 10098.5 10645.4 920.0 86.5 173.0 10636.1 10098.3 10639.3 930.0 87.5 175.0 10630.0 10098.5 10633.3 940.0 88.5 177.0 10624.0 10098.3 10627.5 950.0 89.5 178.9 10618.2 10098.5 10621.7 960.0 90.5 180.9 10612.5 10098.3 10616.2 970.0 91.4 182.9 10607.0 10098.5 10610.7 980.0 92.4 184.9 10602.2 10162.7 10606.0 990.0 93.4 186.7 10604.0 10781.2 10607.8 1000.0 94.3 188.6 10605.8 10781.3 10609.5 1010.0 95.2 190.4 10607.5 10781.3 10611.2 1020.0 96.1 192.3 10609.1 10781.3 10612.8 1030.0 97.1 194.1 10610.8 10781.3 10614.5 1040.0 98.0 196.0 10612.4 10781.2 10616.0 1050.0 98.9 197.9 10614.0 10781.3 10617.6 1060.0 99.9 199.7 10615.5 10781.3 10619.1 1070.0 100.8 201.6 10617.1 10781.3 10620.6 1080.0 101.7 203.4 • 10618.6 10781.2 10622.1 • 1090.0 102.6 205 .3 10620.0 10781.3 10623.6 1100.0 103.6 207 .1 10621.5 10781.3 10625.0 1110.0 104.5 209.0 10622.9 10781.3 10626.4 1120.0 105.4 210.8 10624.3 10781.3 10627.8 11 of 32 vsfusion Union Oil Company of Calif1a • Well: Blue Buck 6 -7 -9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS (DGD) (TGD) II, 1130.0 106.3 212.7 10625.7 10781.3 10629.1 1140.0 107.3 214.5 10627.0 10781.2 10630.4 1150.0 108.2 216.4 10628.3 10781.3 10631.7 1160.0 109.1 218.3 10629.6 10781.3 10633.0 1170.0 110.1 220.1 10630.9 10781.3 10634.3 1180.0 111.0 222.0 10628.4 10338.5 10631.7 1190.0 112.3 224.7 10592.0 7549.1 10600.6 1200.0 113.7 227.3 10556.6 7549.0 10570.1 1210.0 115.0 230.0 10521.9 7549.0 10540.2 1220.0 116.3 232.6 10488.1 7549.1 10511.0 1230.0 117.6 235.3 10455.0 7549.0 10482.3 1240.0 119.0 237.9 10422.6 7549.1 10454.2 1250.0 120.3 240.6 10391.0 7549.0 10426.6 1260.0 121.6 243.2 10360.0 7549.0 10399.5 1270.0 122.9 245.9 10329.8 7549.1 10373.0 1280.0 124.3 248.5 10300.1 7549.0 10347.0 1290.0 125.6 251.2 10271.1 7549.1 10321.4 1300.0 126.9 253.8 10242.7 7549.0 10296.3 1310.0 128.2 256.5 10214.9 7549.0 10271.7 1320.0 129.6 259.1 10187.6 7549.1 10247.5 1330.0 130.9 261.8 10160.9 7549.0 10223.8 1340.0 132.2 264.4 10134.7 7549.0 10200.5 1350.0 133.5 267.1 10109.1 7549.0 10177.6 1360.0 134.9 269.7 10083.9 7549.0 10155.0 1370.0 136.2 272.4 10059.3 7549.0 10132.9 1380.0 137.5 275.1 10034.1 7468.4 10110.4 1390.0 139.0 278.0 10000.0 6812.9 10081.2 1400.0 140.5 280.9 9966.7 6812.9 10052.5 4 11 1 1410.0 141.9 283.9 9934.1 6812.9 10024.4 1420.0 143.4 286.8 9902.2 6812.9 9996.7 1430.0 144.9 289.7 9870.9 6812.9 9969.6 1440.0 146.4 292.7 9839.4 6755.0 9942.3 1450.0 147.8 295.7 9807.9 6717.0 9915.0 1460.0 149.3 298.7 9777.1 6717.0 9888.2 1470.0 150.8 301.6 9746.9 6717.0 9861.9 1480.0 152.3 304.6 9717.3 6717.0 9836.1 1490.0 153.8 307.6 9688.2 6717.0 9810.6 1500.0 155.3 310.6 9659.7 6717.0 9785.6 1510.0 156.8 313.5 9631.8 6717.0 9761.0 1520.0 158.3 316.5 9604.4 6717.0 9736.8 1530.0 159.7 319.5 9577.5 6717.0 9713.0 1540.0 161.2 322.5 9551.1 6717.0 9689.6 1550.0 162.7 325.5 9525.1 6717.0 9666.5 1560.0 164.2 328.4 9499.7 6717.0 9643.8 1570.0 165.7 331.4 9474.7 6717.0 9621.5 1580.0 167.2 334.4 9450.7 6761.0 9599.9 1590.0 168.6 337.2 9432.0 7184.2 9582.5 1600.0 170.0 339.9 9413.5 7184.2 9565.3 1610.0 171.4 342.7 9395.4 7184.2 9548.3 1620.0 172.8 345.5 9377.6 7184.2 9531.6 1630.0 174.1 348.3 9360.1 7184.2 9515.2 1640.0 175.5 351.1 9342.8 7184.2 9498.9 1650.0 176.9 353.9 9325.8 7184.2 9482.9 1660.0 178.3 356.6 9309.1 7184.2 9467.1 1670.0 179.7 359.4 9292.7 7184.2 9451.6 1680.0 181.1 362.2 9276.5 7184.2 9436.2 1690.0 182.5 365.0 9260.5 7184.2 9421.1 1 111 1700.0 183.9 367.8 9244.8 7184.2 9406.1 1710.0 185.3 370.6 9229.3 7184.2 9391.4 1720.0 186.7 373.3 9214.1 7184.2 9376.9 12 of 32 vsfusion Union Oil Company of Caliiia • Well: Blue Buck 6 -7 -9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS • (DGD) (TGD) 1730.0 188.1 376.1 9199.0 7184.2 9362.5 1740.0 189.5 378.9 9184.2 7184.2 9348.4 1750.0 190.8 381.7 9169.7 7184.2 9334.4 1760.0 192.2 384.5 9155.3 7184.2 9320.6 1770.0 193.6 387.3 9141.1 7184.2 9307.0 1780.0 195.0 390.1 9126.7 7132.0 9293.2 1790.0 196.5 393.1 9108.2 6693.8 9276.2 1800.0 198.0 396.0 9090.0 6693.8 9259.4 1810.0 199.5 399.0 9072.0 6693.8 9242.8 1820.0 201.0 402.0 9054.3 6693.8 9226.5 1830.0 202.5 405.0 9036.9 6693.8 9210.4 1840.0 204.0 408.0 9019.8 6693.8 9194.4 1850.0 205.5 411.0 9002.9 6693.9 9178.7 1860.0 207.0 414.0 8986.2 6693.8 9163.2 1870.0 208.5 417.0 8969.8 6693.8 9147.9 1880.0 210.0 419.9 8953.6 6693.8 9132.7 1890.0 211.5 422.9 8937.6 6693.8 9117.8 1900.0 213.0 425.9 8921.9 6693.8 9103.0 1910.0 214.5 428.9 8906.3 6693.9 9088.5 1920.0 215.9 431.9 8891.0 6693.8 9074.1 1930.0 217.4 434.9 8875.9 6693.8 9059.9 1940.0 218.8 437.6 8867.2 7445.3 9050.8 1950.0 220.0 440.1 8862.5 8047.7 9045.5 1960.0 221.3 442.5 8858.0 8047.7 9040.2 1970.0 222.5 445.0 8853.4 8047.7 9034.9 1980.0 223.8 447.5 8849.0 8049.9 9029.8 1990.0 225.0 450.0 8844.7 8070.4 9024.8 • 2000.0 226.2 2010.0 227.5 452.5 8840.4 8070.4 9019.8 454.9 8836.3 8070.4 9014.9 2020.0 228.7 457.4 8832.1 8070.3 9010.1 2030.0 230.0 459.9 8828.0 8070.4 9005.3 2040.0 231.2 462.4 8823.9 8070.4 9000.5 2050.0 232.4 464.9 8819.9 8070.3 8995.8 2060.0 233.7 467.3 8815.9 8070.4 8991.1 2070.0 234.9 469.8 8812.0 8070.4 8986.5 2080.0 236.1 472.3 8808.1 8070.4 8982.0 2090.0 237.4 474.8 8804.3 8070.3 8977.5 2100.0 238.6 477.2 8800.5 8070.4 8973.0 2110.0 239.9 479.7 8796.7 8070.4 8968.6 2120.0 241.1 482.2 8793.0 8070.3 8964.2 2130.0 242.3 484.7 8789.3 8070.4 8959.8 2140.0 243.6 487.2 8785.6 8070.4 8955.5 2150.0 244.8 489.7 8781.6 7995.4 8950.9 2160.0 246.2 492.4 8773.8 7378.8 8943.0 2170.0 247.5 495.1 8766.2 7378.7 8935.2 2180.0 248.9 497.8 8758.7 7378.7 8927.4 2190.0 250.3 500.5 8751.2 7378.8 8919.8 2200.0 251.6 503.2 8743.8 7378.7 8912.2 2210.0 253.0 505.9 8736.5 7378.8 8904.7 2220.0 254.3 508.6 8729.2 7378.7 8897.2 2230.0 255.7 511.3 8722.1 7378.7 8889.9 2240.0 257.0 514.1 8715.0 7378.7 8882.6 2250.0 258.4 516.8 8708.0 7378.9 8875.3 2260.0 259.7 519.5 8701.1 7378.7 8868.2 2270.0 261.1 522.2 8694.2 7378.7 8861.1 2280.0 262.4 524.9 8687.4 7378.7 8854.1 2290.0 263.8 527.6 8680.7 7378.7 8847.1 • 2300.0 265.2 530.3 8674.0 7378.9 8840.2 2310.0 266.5 533.0 8667.4 7378.7 8833.4 2320.0 267.9 535.7 8660.9 7378.7 8826.7 13 of 32 vsfusion Union Oil Company of Cali o ii • Well: Blue Buck 6-7-9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS (DGD) (TGD) 2330.0 269.2 538.5 8654.5 7378.7 8820.0 1 111 2340.0 270.6 541.2 8648.1 7378.7 8813.3 2350.0 271.9 543.9 8641.7 7378.9 8806.8 2360.0 273.3 546.6 8635.5 7378.7 8800.3 2370.0 274.6 549.3 8629.3 7378.7 8793.8 2380.0 276.0 552.0 8623.8 7501.8 8788.0 2390.0 277.1 554.2 8624.7 8828.3 8788.2 2400.0 278.2 556.5 8625.5 8828.1 8788.4 2410.0 279.4 558.8 8626.3 8828.3 8788.5 2420.0 280.5 561.0 8627.1 8828.1 8788.7 2430.0 281.6 563.3 8627.9 8828.3 8788.8 2440.0 282.8 565.6 8628.7 8828.1 8789.0 2450.0 283.9 567.8 8629.5 8828.1 8789.2 2460.0 285.0 570.1 8630.3 8828.3 8789.3 2470.0 286.2 572.3 8631.1 8828.1 8789.5 2480.0 287.3 574.6 8631.9 8828.3 8789.6 2490.0 288.4 576.9 8632.7 8828.1 8789.8 2500.0 289.6 579.1 8633.4 8828.3 8789.9 2510.0 290.7 581.4 8634.2 8828.1 8790.1 2520.0 291.8 583.7 8634.9 8828.3 8790.2 2530.0 293.0 585.9 8635.7 8828.1 8790.4 2540.0 294.1 588.2 8636.4 8828.3 8790.5 2550.0 295.2 590.5 8637.2 8828.1 8790.7 2560.0 296.4 592.7 8637.9 8828.1 8790.8 2570.0 297.5 595.0 8638.6 8828.3 8790.9 2580.0 298.6 597.3 8639.3 8828.1 8791.1 2590.0 299.8 599.5 8640.0 8828.3 8791.2 2600.0 300.9 601.8 8640.4 8727.9 8791.0 III 2610.0 302.2 604.4 8637.4 7919.6 8787.5 2620.0 303.4 606.9 8634.4 7919.6 8784.1 2630.0 304.7 609.4 8631.4 7919.6 8780.7 2640.0 306.0 611.9 8628.5 7919.6 8777.3 2650.0 307.2 614.5 8625.6 7919.6 8773.9 2660.0 308.5 617.0 8622.7 7919.6 8770.6 2670.0 309.8 619.5 8619.8 7919.6 8767.3 2680.0 311.0 622.0 8617.0 7919.6 8764.0 2690.0 312.3 624.6 8614.1 7919.6 8760.8 2700.0 313.5 627.1 8611.4 7919.6 8757.6 2710.0 314.8 629.6 8608.6 7919.6 8754.4 2720.0 316.1 632.1 8605.8 7919.6 8751.2 2730.0 317.3 634.7 8603.1 7919.6 8748.0 2740.0 318.6 637.2 8600.4 7919.6 8744.9 2750.0 319.9 639.7 8597.7 7919.6 8741.8 2760.0 321.1 642.2 8595.0 7919.6 8738.7 2770.0 322.4 644.8 8592.4 7919.4 8735.7 2780.0 323.6 647.3 8590.1 8002.7 8732.9 2790.0 324.8 649.5 8591.0 8836.2 8733.3 2800.0 325.9 651.8 8591.8 8835.9 8733.7 2810.0 327.0 654.0 8592.7 8836.2 8734.0 2820.0 328.2 656.3 8593.5 8836.2 8734.4 2830.0 329.3 658.6 8594.3 8836.2 8734.7 2840.0 330.4 660.8 8595.2 8836.2 8735.1 2850.0 331.6 663.1 8596.0 8836.2 8735.4 2860.0 332.7 665.4 8596.8 8836.2 8735.8 2870.0 333.8 667.6 8597.6 8836.2 8736.1 2880.0 334.9 669.9 8598.4 8836.2 8736.5 2890.0 336.1 672.2 8599.2 8836.2 8736.8 1111 2900.0 337.2 674.4 8600.0 8836.2 8737.1 2910.0 338.3 676.7 8600.8 8836.2 8737.5 2920.0 339.5 678.9 8601.6 8836.2 8737.8 14 of 32 vsfusion Union Oil Company of Cali1iia Well: Blue Buck 6 -7 -9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS 1111 (DGD) (TGD) 2930.0 340.6 681.2 8602.4 8836.2 8738.1 2940.0 341.7 683.5 8603.1 8836.2 8738.4 2950.0 342.9 685.7 8603.9 8836.2 8738.8 2960.0 344.0 688.0 8604.7 8836.2 8739.1 2970.0 345.1 690.3 8605.4 8836.2 8739.4 2980.0 346.3 692.5 8606.1 8812.4 8739.7 2990.0 347.4 694.9 8606.1 8605.5 8739.2 3000.0 348.6 697.2 8606.1 8605.3 8738.8 3010.0 349.8 699.5 8606.1 8605.5 8738.3 3020.0 350.9 701.8 8606.1 8605.3 8737.9 3030.0 352.1 704.2 8606.1 8605.5 8737.5 3040.0 353.2 706.5 8606.1 8605.3 8737.0 3050.0 354.4 708.8 8606.1 8605.5 8736.6 3060.0 355.6 711.1 8606.1 8605.5 8736.2 3070.0 356.7 713.4 8606.1 8605.3 8735.7 3080.0 357.9 ° 715.8 8606.1 8605.5 8735.3 3090.0 359.0 718.1 8606.1 8605.3 8734.9 3100.0 360.2 720.4 8606.1 8605.5 8734.5 3110.0 361.4 722.7 8606.1 8605.3 8734.1 3120.0 362.5 725.1 8606.1 8605.5 8733.7 3130.0 363.7 727.4 8606.1 8605.3 8733.3 3140.0 364.9 729.7 8606.1 8605.5 8732.9 3150.0 366.0 732.0 8606.1 8605.3 8732.5 3160.0 367.2 734.4 8606.1 8605.5 8732.1 3170.0 368.3 736.7 8606.1 8605.5 8731.7 3180.0 369.5 739.0 8606.2 8637.0 8731.4 3190.0 370.6 741.2 8607.2 8933.7 8732.0 3200.0 371.7 743.5 8608.1 8933.5 8732.6 1 11 1 3210.0 372.9 745.7 8609.1 8933.7 8733.2 3220.0 374.0 748.0 8610.1 8933.5 8733.8 3230.0 375.1 750.2 8611.1 8933.7 8734.4 3240.0 376.2 752.4 8612.0 8933.5 8735.0 3250.0 377.3 754.7 8613.0 8933.7 8735.6 3260.0 378.5 756.9 8613.9 8933.5 8736.2 3270.0 379.6 759.2 8614.9 8933.7 8736.8 3280.0 380.7 761.4 8615.8 8933.5 8737.4 3290.0 381.8 763.6 8616.7 8933.7 8738.0 3300.0 382.9 765.9 8617.7 8933.5 8738.5 3310.0 384.1 768.1 8618.6 8933.7 8739.1 3320.0 385.2 770.3 8619.5 8933.5 8739.7 3330.0 386.3 772.6 8620.4 8933.7 8740.3 3340.0 387.4 774.8 8621.3 8933.7 8740.8 3350.0 388.5 777.1 8622.2 8933.5 8741.4 3360.0 389.7 779.3 8623.1 8933.7 8741.9 3370.0 390.8 781.5 8624.0 8933.5 8742.5 3380.0 391.9 783.8 8624.9 8933.7 8743.0 3390.0 393.0 786.0 8625.8 8933.5 8743.6 3400.0 394.1 788.3 8626.6 8933.7 8744.1 3410.0 395.3 790.6 8626.8 8685.3 8744.0 3420.0 396.5 793.0 8625.3 8156.7 8742.2 3430.0 397.7 795.5 8623.9 8156.9 8740.5 3440.0 399.0 797.9 8622.5 8156.7 8738.7 3450.0 400.2 800.4 8621.0 8156.7 8737.0 3460.0 401.4 802.8 8619.6 8156.7 8735.3 3470.0 402.6 805.3 8618.2 8156.7 8733.6 3480.0 403.9 807.7 8616.8 8156.9 8731.9 3490.0 405.1 810.2 8615.4 8156.7 8730.2 • 3500.0 406.3 3510:0 407.5 812.6 8614.0 8156.7 8728.5 815.1 8612.7 8156.7 8726.9 3520.0 408.8 817.5 8611.3 8156.7 8725.2 15 of 32 vsfusion Union Oil Company of Cali Well: Blue Buck 6-7-9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS (DGD) (TGD) 3530.0 410.0 820.0 8609.9 8156.9 8723.6 411/ 3540.0 411.2 822.4 8608.6 8156.7 8722.0 3550.0 412.4 824.9 8607.2 8156.7 8720.3 3560.0 413.7 827.3 8605.9 8156.7 8718.7 3570.0 414.9 829.8 8604.6 8156.9 8717.1 3580.0 416.1 832.2 8603.6 8269.7 8715.8 3590.0 417.2 834.3 8605.7 9448.4 8717.8 3600.0 418.2 836.4 8607.9 9448.7 8719.7 3610.0 419.3 838.6 8610.0 9448.4 8721.6 3620.0 420.3 840.7 8612.1 9448.4 8723.5 3630.0 421.4 842.8 8614.2 9448.7 8725.4 3640.0 422.5 844.9 8616.3 9448.4 8727.3 3650.0 423.5 847.0 8618.4 9448.4 8729.2 3660.0 424.6 849.1 8620.5 9448.7 8731.0 3670.0 425.6 851.3 8622.5 9448.4 8732.9 3680.0 426.7 853.4 8624.6 9448.4 8734.8 3690.0 427.7 855.4 8627.2 9716.8 8737.2 3700.0 428.7 857.4 8630.4 10000.9 8740.4 3710.0 429.7 859.4 8633.6 10000.9 8743.6 3720.0 430.7 861.4 8636.8 10000.9 8746.7 3730.0 431.7 863.4 8639.9 10000.9 8749.8 3740.0 432.7 865.4 8643.1 10000.9 8752.9 3750.0 433.7 867.4 8646.2 10000.9 8756.0 3760.0 434.7 869.4 8649.3 10000.6 8759.0 3770.0 435.7 871.4 8652.4 10000.9 8762.1 3780.0 436.7 873.4 8655.5 10000.9 8765.1 3790.0 437.7 875.4 8658.6 10000.9 8768.2 3800.0 438.7 877.4 8661.6 10000.9 8771.2 1 111 3810.0 439.7 879.4 8664.7 10000.9 8774.1 3820.0 440.7 881.4 8667.7 10000.6 8777.1 3830.0 441.7 883.4 8670.7 10000.9 8780.1 3840.0 442.7 885.4 8673.7 10000.9 8783.0 3850.0 443.7 887.4 8676.7 10000.9 8786.0 3860.0 444.7 889.4 8679.7 10000.9 8788.9 3870.0 445.7 891.4 8682.7 10000.9 8791.8 3880.0 446.7 893.4 8685.6 10000.9 8794.7 3890.0 447.7 895.4 8688.5 10000.6 8797.6 3900.0 448.7 897.4 8691.5 10000.9 8800.4 3910.0 449.7 899.4 8694.4 10000.9 8803.3 3920.0 450.8 901.6 8695.8 9272.7 8804.4 3930.0 451.9 903.8 8696.1 8843.1 8804.5 3940.0 453.1 906.1 8696.5 8843.3 8804.6 3950.0 454.2 908.4 8696.9 8843.3 8804.7 3960.0 455.3 910.6 8697.2 8843.3 8804.8 3970.0 456.4 912.9 8697.6 8843.3 8804.9 3980.0 457.6 915.1 8698.1 8886.5 8805.1 3990.0 458.6 917.3 8699.5 9295.9 8806.3 4000.0 459.7 919.4 8700.9 9295.9 8807.5 4010.0 460.8 921.6 8702.2 9295.9 8808.7 4020.0 461.9 923.8 8703.6 9295.9 8809.8 4030.0 463.0 925.9 8705.0 9296.2 8811.0 4040.0 464.0 928.1 8706.4 9295.9 8812.1 4050.0 465.1 930.2 8707.7 9295.9 8813.3 4060.0 466.2 932.4 8709.1 9295.9 8814.4 4070.0 467.3 934.5 8710.4 9295.9 8815.6 4080.0 468.3 936.7 8711.8 9295.9 8816.7 4090.0 469.4 938.8 8713.1 9295.9 8817.8 III 4100.0 470.5 941.0 8714.5 9295.9 8819.0 4110.0 471.6 943.1 8715.8 9295.9 8820.1 4120.0 472.6 945.3 8717.1 9295.9 8821.2 16 of 32 vsfusion Union Oil Company of Caliiia Well: Blue Buck 6 -7 -9 DATUM TIME VELOCITY DEPTH 1 WAY 2 WAY AVERAGE INTERVAL RMS (DGD) (TGD) 1111 4130.0 473.7 947.4 8718.4 9295.9 8822.3 4140.0 474.8 949.6 8719.7 9296.2 8823.4 4150.0 475.9 951.7 8721.0 9295.9 8824.5 4160.0 476.9 953.9 8722.3 9295.9 8825.6 4170.0 478.0 956.0 8723.6 9295.9 8826.7 4180.0 479.1 958.2 8724.9 9310.1 8827.8 4190.0 480.1 960.3 8726.5 9441.3 8829.2 4200.0 481.2 962.4 8728.1 9441.3 8830.6 4210.0 482.3 964.5 8729.7 9441.3 8832.0 4220.0 483.3 966.6 8731.2 9441.6 8833.3 4230.0 484.4 968.8 8732.8 9441.3 8834.7 4240.0 485.4 970.9 8734.3 9441.3 8836.1 4250.0 486.5 973.0 8735.9 9441.3 8837.4 4260.0 487.6 975.1 8737.4 9441.3 8838.8 4270.0 488.6 977.2 8738.9 9441.3 8840.2 4280.0 489.7 979.4 8740.4 9441.3 8841.5 4290.0 490.7 981.5 8741.9 9441.3 8842.8 4300.0 491.8 983.6 8743.5 9441.3 8844.2 4310.0 492.9 985.7 8745.0 9441.3 8845.5 4320.0 493.9 987.8 8746.4 9441.3 8846.8 4330.0 495.0 989.9 8747.9 9441.3 8848.1 4340.0 496.0 992.1 8749.4 9441.3 8849.4 4350.0 497.1 994.2 8750.9 9441.3 8850.7 4360.0 498.2 996.3 8752.4 9441.3 8852.0 4370.0 499.2 998.4 8753.8 9441.3 8853.3 4380.0 500.3 1000.5 8755.3 9433.7 8854.6 4390.0 501.3 1002.7 8756.6 9364.7 8855.7 4400.0 502.4 1004.8 8757.8 9364.4 8856.8 4410.0 503.5 1006.9 8759.1 9364.7 8857.9 4420.0 504.5 1009.1 8760.4 9364.7 8859.0 4430.0 505.6 1011.2 8761.7 9364.7 8860.1 4440.0 506.7 1013.4 8763.0 9364.7 8861.2 4450.0 507.7 1015.5 8764.2 9364.4 8862.3 II • 17 of 32 vsfusion Union Oil Company of Cala Well: Blue Buck 6 -7 -9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL 4 11 1 DATUM CORRECT. VELOCITY 13000.0 FT /SEC 3.2 DATA INTERPOLATED EVERY 2.00 MS BELOW DATUM TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS (TGD) (DGD) 2.0 1.0 10.8 10812.0 10812.0 10812.0 4.0 2.0 21.6 10812.0 10812.0 10812.0 6.0 3.0 32.4 10812.0 10812.0 10812.0 8.0 4.0 43.2 10812.0 10812.0 10812.0 10.0 5.0 54.1 10812.0 10812.0 10812.0 12.0 6.0 64.9 10812.0 10812.0 10812.0 14.0 7.0 75.7 10812.0 10812.0 10812.0 16.0 8.0 86.5 10812.0 10812.0 10812.0 18.0 9.0 97.3 10812.0 10812.0 10812.0 20.0 10.0 108.1 10812.0 10812.0 10812.0 22.0 11.0 118.9 10812.0 10812.0 10812.0 24.0 12.0 129.7 10812.0 10812.0 10812.0 26.0 13.0 140.6 10812.1 10812.1 10812.0 28.0 14.0 151.4 10812.0 10812.0 10812.0 30.0 15.0 162.2 10812.0 10812.1 10812.0 32.0 16.0 173.0 10812.0 10812.0 10812.0 34.0 17.0 183.8 10812.1 10812.1 10812.0 36.0 18.0 194.6 10812.0 10812.0 10812.0 38.0 19.0 205.4 10812.0 10812.1 10812.0 40.0 20.0 216.2 10812.0 10812.0 10812.0 1111 42.0 21.0 227.1 10812.1 10812.1 10812.0 44.0 22.0 237.9 10812.0 10812.0 10812.0 46.0 23.0 248.7 10812.0 10812.1 10812.0 48.0 24.0 259.5 10812.0 10812.0 10812.0 50.0 25.0 270.3 10812.0 10812.0 10812.0 52.0 26.0 281.1 10812.1 10812.1 10812.0 54.0 27.0 291.9 10812.0 10812.0 10812.0 56.0 28.0 302.7 10812.0 10812.0 10812.0 58.0 29.0 313.5 10812.0 10812.0 10812.0 60.0 30.0 324.4 10812.0 10812.1 10812.0 62.0 31.0 335.2 10812.1 10812.0 10812.0 64.0 32.0 346.0 10812.0 10812.0 10812.0 66.0 33.0 356.8 10812.0 10812.1 10812.1 68.0 34.0 367.6 10812.1 10812.0 10812.1 70.0 35.0 378.4 10812.0 10812.0 10812.1 72.0 36.0 389.2 10812.0 10812.0 10812.1 74.0 37.0 400.0 10812.1 10812.1 10812.1 76.0 38.0 410.9 10812.0 10812.0 10812.1 78.0 39.0 421.7 10812.0 10812.0 10812.1 80.0 40.0 432.5 10812.0 10812.0 10812.1 82.0. 41.0 443.3 10812.1 10812.1 10812.1 84.0 42.0 454.1 10812.1 10812.0 10812.1 86.0 43.0 464.9 10812.0 10812.0 10812.1 88.0 44.0 475.7 10812.0 10812.0 10812.1 90.0 45.0 486.5 10812.1 10812.1 10812.1 92.0 46.0 497.4 10812.0 10812.0 10812.1 94.0 47.0 508.2 10812.0 10812.0 10812.1 96.0 48.0 519.0 10812.0 10812.0 10812.1 98.0 49.0 529.8 10812.0 10812.1 10812.1 1111 100.0 50.0 540.6 10812.0 10812.0 10812.1 102.0 51.0 551.4 10812.0 10812.1 10812.1 104.0 52.0 562.2 10812.1 10812.1 10812.1 18 of 32 vsfusion Union Oil Company of Caliiia Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS • (TGD) (DGD) 106.0 53.0 573.0 10812.0 10812.0 10812.1 108.0 54.0 583.7 10809.8 10687.9 10809.8 110.0 55.0 594.3 10804.8 10535.1 10804.8 112.0 56.0 604.8 10799.9 10535.2 10800.1 114.0 57.0 615.3 10795.3 10535.2 10795.5 116.0 58.0 625.9 10790.8 10535.2 10791.1 118.0 59.0 636.4 10786.5 10535.2 10786.8 120.0 60.0 646.9 10782.3 10535.2 10782.6 122.0 61.0 657.5 10778.2 10535.2 10778.6 124.0 62.0 668.0 10774.3 10535.2 10774.7 126.0 63.0 678.5 10770.5 10535.2 10771.0 128.0 64.0 689.1 10766.8 10535.1 10767.3 130.0 65.0 699.6 10763.3 10535.2 10763.8 132.0 66.0 710.1 10759.8 10535.2 10760.4 134.0 67.0 720.7 10756.5 10535.2 10757.0 136.0 68.0 731.2 10753.2 10535.2 10753.8 138.0 69.0 741.8 10750.1 10535.2 10750.7 140.0 70.0 752.3 10747.0 10535.2 10747.6 142.0 71.0 762.8 10744.0 10535.1 10744.7 144.0 72.0 773.4 10741.1 10535.2 10741.8 146.0 73.0 783.7 10735.5 10332.3 10736.3 148.0 74.0 793.8 10726.9 10098.4 10727.9 150.0 75.0 803.9 10718.5 10098.4 10719.7 152.0 76.0 814.0 10710.3 10098.4 10711.8 154.0 77.0 824.1 10702.4 10098.4 10704.1 156.0 78.0 834.2 10694.7 10098.4 10696.5 158.0 79.0 844.3 10687.1 10098.4 10689.2 1 7 10098.4 10682.0 160.0 80.0 854.4 06 9.8 • 162.0 81.0 864.5 10672.6 10098.4 10675.0 164.0 82.0 874.6 10665.6 10098.4 10668.1 166.0 83.0 884.7 10658.7 10098.3 10661.4 168.0 84.0 894.8 10652.1 10098.4 10654.9 170.0 85.0 904.9 10645.6 10098.4 10648.5 172.0 86.0 915.0 10639.2 10098.4 10642.3 174.0 87.0 925.1 10633.0 10098.4 10636.2 176.0 88.0 935.2 10626.9 10098.4 10630.2 178.0 89.0 945.3 10621.0 10098.4 10624.4 180.0 90.0 955.4 10615.2 10098.4 10618.7 182.0 91.0 965.5 10609.5 10098.4 10613.1 184.0 92.0 975.6 10603.9 10098.4 10607.7 186.0 93.0 986.1 10603.3 10548.6 10607.0 188.0 94.0 996.9 10605.2 10781.2 10608.9 190.0 95.0 1007.7 10607.1 10781.2 10610.7 192.0 96.0 1018.5 10608.9 10781.2 10612.5 194.0 97.0 1029.2 10610.7 10781.2 10614.3 196.0 98.0 1040.0 10612.4 10781.2 10616.0 198.0 99.0 1050.8 10614.1 10781.2 10617.7 200.0 100.0 1061.6 10615.8 10781.1 10619.3 202.0 101.0 1072.4 10617.4 10781.2 10620.9 204.0 102.0 1083.1 10619.0 10781.2 10622.5 206.0 103.0 1093.9 10620.6 10781.2 10624.1 208.0 104.0 1104.7 10622.1 10781.2 10625.6 210.0 105.0 1115.5 10623.7 10781.2 10627.1 212.0 106.0 1126.3 10625.1 10781.2 10628.5 214.0 107.0 1137.0 10626.6 10781.1 10630.0 216.0 108.0 1147.8 10628.0 10781.2 10631.4 • 218.0 109.0 1158.6 10629.4 10781.2 10632.8 220.0 110.0 1169.4 10630.8 10781.2 10634.1 222.0 111.0 1179.8 10629.0 10430.1 10632.3 224.0 112.0 1187.4 10601.5 7549.0 10608.8 19 of 32 vsfusion Union Oil Company of Calia • Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 1 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS (TGD) (DGD) III 226.0 113.0 1194.9 10574.5 7549.1 10585.6 228.0 114.0 1202.5 10548.0 7549.0 10562.7 230.0 115.0 1210.0 10521.9 7549.1 10540.2 232.0 116.0 1217.6 10496.3 7549.1 10518.1 234.0 117.0 1225.1 10471.1 7549.0 10496.3 236.0 118.0 1232.7 10446.3 7549.1 10474.8 238.0 119.0 1240.2 10422.0 7549.1 10453.6 240.0 120.0 1247.8 10398.0 7549.0 10432.7 242.0 121.0 1255.3 10374.5 7549.1 10412.2 I 244.0 122.0 1262.9 10351.3 7549.1 10391.9 246.0 123.0 1270.4 10328.5 7549.0 10371.9 248.0 124.0 1278.0 10306.1 7549.1 10352.2 250.0 125.0 1285.5 10284.1 7549.1 10332.8 252.0 126.0 1293.1 10262.3 7549.0 10313.7 254.0 127.0 1300.6 10241.0 7549.1 10294.8 256.0 128.0 1308.2 10220.0 7549.1 10276.2 258.0 129.0 1315.7 10199.2 7549.0 10257.9 260.0 130.0 1323.3 10178.9 7549.1 10239.8 262.0 131.0 1330.8 10158.8 7549.1 10221.9 264.0 132.0 1338.3 10139.0 7549.0 10204.3 266.0 133.0 1345.9 10119.5 7549.1 10186.9 268.0 134.0 1353.4 10100.4 7549.0 10169.8 270.0 135.0 1361.0 10081.5 7549.1 10152.8 272.0 136.0 1368.5 10062.8 7549.1 10136.1 274.0 137.0 1376.1 10044.5 7549.1 10119.6 276.0 138.0 1383.2 10023.1 7096.1 10101.0 278.0 139.0 1390.0 10000.0 6813.0 10081.2 280.0 140.0 1396.8 9977.3 6812.9 10061.6 1111 282.0 141.0 1403.6 9954.8 6812.9 10042.3 284.0 142.0 1410.4 9932.7 6812.9 10023.1 286.0 143.0 1417.3 9910.9 6813.0 10004.3 288.0 144.0 1424.1 9889.4 6812.9 9985.6 290.0 145.0 1430.9 9868.1 6812.9 9967.2 292.0 146.0 1437.6 9846.9 6760.9 9948.8 294.0 147.0 1444.4 9825.6 6717.0 9930.3 296.0 148.0 1451.1 9804.6 6716.9 9912.1 298.0 149.0 1457.8 9783.8 6717.0 9894.1 300.0 150.0 1464.5 9763.4 6716.9 9876.3 302.0 151.0 1471.2 9743.2 6717.0 9858.7 304.0 152.0 1477.9 9723.3 6716.9 9841.3 306.0 153.0 1484.7 9703.7 6717.0 9824.1 308.0 154.0 1491.4 9684.3 6716.9 9807.1 310.0 155.0 1498.1 9665.1 6716.9 9790.3 312.0 156.0 1504.8 9646.2 6717.0 9773.7 314.0 157.0 1511.5 9627.6 6716.9 9757.3 316.0 158.0 1518.2 9609.2 6717.0 9741.0 318.0 159.0 1525.0 9591.0 6716.9 9724.9 320.0 160.0 1531.7 9573.0 6717.0 9709.0 322.0 161.0 1538.4 9555.3 6716.9 9693.3 324.0 162.0 1545.1 9537.7 6717.0 9677.7 326.0 163.0 1551.8 9520.4 6716.9 9662.3 328.0 164.0 1558.5 9503.3 6717.0 9647.1 330.0 165.0 1565.3 9486.5 6716.9 9632.0 332.0 166.0 1572.0 9469.8 6716.9 9617.1 334.0 167.0 1578.7 9453.3 6717.0 9602.3 336.0 168.0 1585.9 9439.7 7163.3 9589.7 338.0 169.0 1593.0 9426.3 7184.2 9577.2 4 11 1 340.0 170.0 1600.2 9413.1 7184.2 9564.9 342.0 171.0 1607.4 9400.1 7184.2 9552.7 344.0 172.0 1614.6 9387.2 7184.2 9540.6 20 of 32 vsfusion Union Oil Company of Calif is • Well: Blue Buck 6-7-9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS 1111 (TGD) (DGD) 346.0 173.0 1621.8 9374.5 7184.3 9528.7 348.0 174.0 1629.0 9361.9 7184.2 9516.8 350.0 175.0 1636.2 9349.4 7184.2 9505.1 352.0 176.0 1643.3 9337.1 7184.2 9493.6 354.0 177.0 1650.5 9325.0 7184.2 9482.1 356.0 178.0 1657.7 9312.9 7184.3 9470.7 358.0 179.0 1664.9 9301.1 7184.2 9459.5 360.0 180.0 1672.1 9289.3 7184.2 9448.4 362.0 181.0 1679.3 9277.7 7184.2 9437.4 364.0 182.0 1686.4 9266.2 7184.2 9426.4 366.0 183.0 1693.6 9254.8 7184.3 9415.6 368.0 184.0 1700.8 9243.5 7184.2 9405.0 370.0 185.0 1708.0 9232.4 7184.2 9394.4 372.0 186.0 1715.2 9221.4 7184.2 9383.9 374.0 187.0 1722.4 9210.5 7184.2 9373.5 376.0 188.0 1729.5 9199.7 7184.3 9363.2 378.0 189.0 1736.7 9189.1 7184.2 9353.0 380.0 190.0 1743.9 9178.5 7184.2 9342.9 382.0 191.0 1751.1 9168.1 7184.2 9332.9 384.0 192.0 1758.3 9157.7 7184.2 9323.0 386.0 193.0 1765.5 9147.5 7184.3 9313.2 388.0 194.0 1772.7 9137.4 7184.2 9303.4 390.0 195.0 1779.8 9127.1 7127.1 9293.6 392.0 196.0 1786.5 9114.7 6693.8 9282.2 394.0 197.0 1793.2 9102.4 6693.8 9270.9 396.0 198.0 1799.9 9090.2 6693.8 9259.6 398.0 199.0 1806.6 9078.2 6693.8 9248.5 • 400.0 200.0 1813.2 9066.2 6693.8 9237.5 402.0 201.0 1819.9 9054.4 6693.8 9226.6 404.0 202.0 1826.6 9042.8 6693.8 9215.8 406.0 203.0 1833.3 9031.2 6693.8 9205.0 408.0 204.0 1840.0 9019.7 6693.8 9194.4 410.0 205.0 1846.7 9008.4 6693.8 9183.9 412.0 206.0 1853.4 8997.1 6693.8 9173.4 414.0 207.0 1860.1 8986.0 6693.8 9163.0 416.0 208.0 1866.8 8975.0 6693.8 9152.8 418.0 209.0 1873.5 8964.1 6693.8 9142.6 420.0 210.0 1880.2 8953.3 6693.8 9132.5 422.0 211.0 1886.9 8942.6 6693.8 9122.4 424.0 212.0 1893.6 8932.0 6693.8 9112.5 426.0 213.0 1900.3 8921.4 6693.8 9102.7 428.0 214.0 1907.0 8911.0 6693.8 9092.9 430.0 215.0 1913.7 8900.7 6693.8 9083.2 432.0 216.0 1920.4 8890.5 6693.8 9073.6 434.0 217.0 1927.0 8880.4 6693.8 9064.1 436.0 218.0 1933.7 8870.4 6693.8 9054.6 438.0 219.0 1941.7 8866.4 7994.8 9050.0 440.0 220.0 1949.8 8862.6 8047.7 9045.7 442.0 221.0 1957.8 8859.0 8047.7 9041.5 444.0 222.0 1965.9 8855.3 8047.6 9037.2 446.0 223.0 1973.9 8851.7 8047.7 9033.0 448.0 224.0 1982.0 8848.1 8056.2 9028.9 450.0 225.0 1990.0 8844.7 8070.4 9024.9 452.0 226.0 1998.1 8841.2 8070.4 9020.9 454.0 227.0 2006.2 8837.8 8070.3 9016.9 456.0 228.0 2014.3 8834.5 8070.4 9013.0 • 458.0 229.0 2022.3 8831.1 8070.4 9009.1 460.0 230.0 2030.4 8827.8 8070.4 9005.2 462.0 231.0 2038.5 8824.6 8070.4 9001.4 464.0 232.0 2046.5 8821.3 8070.3 8997.6 21 of 32 vsfusion Union Oil Company of Cali�iia • Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS (TGD) (DGD) • 466.0 233.0 2054.6 8818.1 8070.6 8993.8 468.0 234.0 2062.7 8814.9 8070.3 8990.0 470.0 235.0 2070.8 8811.7 8070.3 8986.3 472.0 236.0 2078.8 8808.6 8070.6 8982.6 474.0 237.0 2086.9 8805.5 8070.3 8979.0 476.0 238.0 2095.0 8802.4 8070.6 8975.4 478.0 239.0 2103.0 8799.3 8070.3 8971.8 480.0 240.0 2111.1 8796.3 8070.3 8968.2 482.0 241.0 2119.2 8793.3 8070.6 8964.7 484.0 242.0 2127.2 8790.3 8070.3 8961.1 486.0 243.0 2135.3 8787.3 8070.6 8957.7 1 488.0 244.0 2143.4 8784.4 8070.3 8954.2 490.0 245.0 2151.2 8780.6 7859.6 8950.0 492.0 246.0 2158.6 8774.9 7378.9 8944.2 494.0 247.0 2166.0 8769.3 7378.7 8938.4 496.0 248.0 2173.4 8763.6 7378.7 8932.7 498.0 249.0 2180.8 8758.1 7378.7 8927.0 500.0 250.0 2188.1 8752.6 7378.9 8921.3 502.0 251.0 2195.5 8747.1 7378.7 8915.7 504.0 252.0 2202.9 8741.7 7378.7 8910.1 506.0 253.0 2210.3 8736.3 7378.7 8904.6 508.0 254.0 2217.7 8730.9 7378.7 8899.1 510.0 255.0 2225.0 8725.6 7378.9 8893.6 512.0 256.0 2232.4 8720.4 7378.7 8888.2 514.0 257.0 2239.8 8715.1 7378.7 8882.8 516.0 258.0 2247.2 8710.0 7378.7 8877.5 518.0 259.0 2254.5 8704.8 7378.9 8872.2 520.0 260.0 2261.9 8699.7 7378.7 8866.9 1 111 522.0 261.0 2269.3 8694.7 7378.7 8861.7 524.0 262.0 2276.7 8689.6 7378.7 8856.5 526.0 263.0 2284.1 8684.7 7378.9 8851.4 528.0 264.0 2291.4 8679.7 7378.7 8846.3 530.0 265.0 2298.8 8674.8 7378.7 8841.2 532.0 266.0 2306.2 8669.9 7378.7 8836.1 534.0 267.0 2313.6 8665.1 7378.7 8831.1 536.0 268.0 2321.0 8660.3 7378.9 8826.1 538.0 269.0 2328.3 8655.5 7378.7 8821.2 540.0 270.0 2335.7 8650.8 7378.7 8816.3 542.0 271.0 2343.1 8646.1 7378.7 8811.4 544.0 272.0 2350.5 8641.4 7378.7 8806.6 546.0 273.0 2357.9 8636.8 7378.9 8801.8 548.0 274.0 2365.2 8632.2 7378.7 8797.0 550.0 275.0 2372.6 8627.7 7378.7 8792.3 552.0 276.0 2380.2 8623.8 7572.8 8788.1 554.0 277.0 2389.0 8624.6 8828.1 8788.3 556.0 278.0 2397.8 8625.3 8828.1 8788.4 558.0 279.0 2406.7 8626.0 8828.4 8788.6 560.0 280.0 2415.5 8626.8 8828.1 8788.7 562.0 281.0 2424.3 8627.5 8828.1 8788.9 564.0 282.0 2433.2 8628.2 8828.1 8789.0 566.0 283.0 2442.0 8628.9 8828.1 8789.1 568.0 284.0 2450.8 8629.6 8828.4 8789.3 570.0 285.0 2459.6 8630.3 8828.1 8789.4 572.0 286.0 2468.5 8631.0 8828.1 8789.5 574.0 287.0 2477.3 8631.7 8828.1 8789.7 576.0 288.0 2486.1 8632.4 8828.1 8789.8 578.0 289.0 2494.9 8633.0 8828.1 8790.0 III 580.0 290.0 2503.8 8633.7 8828.4 8790.1 582.0 291.0 2512.6 8634.4 8828.1 8790.2 584.0 292.0 2521.4 8635.0 8828.1 8790.3 22 of 32 vsfusion Union Oil Company of Caliiia III Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS 410 (TGD) (DGD) 5 86.0 293.0 2530.3 8635.7 8828.1 8790.5 • 588.0 294.0 2539.1 8636.4 8828.1 8790.6 590.0 295.0 2547.9 8637.0 8828.4 8790.7 592.0 296.0 2556.7 8637.7 8828.1 8790.9 594.0 297.0 2565.6 8638.3 8828.1 8791.0 596.0 298.0 2574.4 8638.9 8828.1 8791.1 598.0 299.0 2583.2 8639.6 8828.1 8791.2 600.0 300.0 2592.1 8640.2 8828.1 8791.4 602.0 301.0 2600.7 8640.2 8634.3 8790.8 604.0 302.0 2608.6 8637.8 7919.4 8788.1 606.0 303.0 2616.5 8635.4 7919.7 8785.4 608.0 304.0 2624.5 8633.1 7919.4 8782.7 610.0 305.0 2632.4 8630.7 7919.7 8780.0 612.0 306.0 2640.3 8628.4 7919.4 8777.3 614.0 307.0 2648.2 8626.1 7919.7 8774.6 616.0 308.0 2656.1 8623.8 7919.4 8772.0 618.0 309.0 2664.0 8621.5 7919.7 8769.4 620.0 310.0 2672.0 8619.3 7919.4 8766.8 622.0 311.0 2679.9 8617.0 7919.7 8764.2 624.0 312.0 2687.8 8614.8 7919.4 8761.6 626.0 313.0 2695.7 8612.5 7919.7 8759.0 628.0 314.0 2703.6 8610.3 7919.4 8756.5 630.0 315.0 2711.6 8608.1 7919.7 8754.0 632.0 316.0 2719.5 8606.0 7919.4 8751.4 634.0 317.0 2727.4 8603.8 7919.7 8748.9 636.0 318.0 2735.3 8601.6 7919.4 8746.5 638.0 319.0 2743.2 8599.5 7919.7 8744.0 • 640.0 320.0 2751.2 8597.4 7919.4 8741.5 642.0 321.0 2759.1 8595.3 7919.7 8739.1 644.0 322.0 2767.0 8593.2 7919.4 8736.7 646.0 323.0 2774.9 8591.1 7919.7 8734.3 648.0 324.0 2783.3 8590.4 8364.0 8733.1 650.0 325.0 2792.1 8591.1 8836.2 8733.5 652.0 326.0 2801.0 8591.9 8836.2 8733.8 654.0 327.0 2809.8 8592.6 8836.2 8734.1 656.0 328.0 2818.6 8593.4 8836.2 8734.4 658.0 329.0 2827.5 8594.1 8836.2 8734.7 660.0 330.0 2836.3 8594.9 8835.9 8735.0 662.0 331.0 2845.1 8595.6 8836.2 8735.3 664.0 332.0 2854.0 8596.3 8836.2 8735.6 666.0 333.0 2862.8 8597.0 8836.2 8735.9 668.0 334.0 2871.6 8597.7 8836.2 8736.2 670.0 335.0 2880.5 8598.5 8836.2 8736.5 672.0 336.0 2889.3 8599.2 8835.9 8736.8 674.0 337.0 2898.2 8599.9 8836.2 8737.1 676.0 338.0 2907.0 8600.6 8836.2 8737.4 678.0 339.0 2915.8 8601.3 8836.2 8737.7 680.0 340.0 2924.7 8602.0 8836.2 8738.0 682.0 341.0 2933.5 8602.6 8836.2 8738.3 684.0 342.0 2942.3 8603.3 8836.2 8738.6 686.0 343.0 2951.2 8604.0 8835.9 8738.9 688.0 344.0 2960.0 8604.7 8836.2 8739.2 690.0 345.0 2968.8 8605.3 8836.2 8739.4 692.0 346.0 2977.7 8606.0 8836.2 8739.7 694.0 347.0 2986.3 8606.1 8639.9 8739.4 696.0 348.0 2994.9 8606.1 8605.2 8739.1 698.0 349.0 3003.5 8606.1 8605.5 8738.7 700.0 350.0 3012.1 8606.1 8605.5 8738.3 702.0 351.0 3020.7 8606.1 8605.2 8737.9 704.0 352.0 3029.3 8606.1 8605.5 8737.6 23 of 32 vsfusion Union Oil Company of Calilia Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS (TGD) (DGD) • 706.0 353.0 3038.0 8606.1 8605.5 8737.2 708.0 354.0 3046.6 8606.1 8605.2 8736.8 710.0 355.0 3055.2 8606.1 8605.5 8736.4 712.0 356.0 3063.8 8606.1 8605.5 8736.1 714.0 357.0 3072.4 8606.1 8605.2 8735.7 716.0 358.0 3081.0 8606.1 8605.5 8735.4 718.0 359.0 3089.6 8606.1 8605.5 8735.0 720.0 360.0 3098.2 8606.1 8605.5 8734.6 722.0 361.0 3106.8 8606.1 8605.2 8734.3 724.0 362.0 3115.4 8606.1 8605.5 8733.9 726.0 363.0 3124.0 8606.1 8605.5 8733.6 728.0 364.0 3132.6 8606.1 8605.2 8733.2 730.0 365.0 3141.2 8606.1 8605.5 8732.9 732.0 366.0 3149.8 8606.1 8605.5 8732.5 734.0 367.0 3158.4 8606.1 8605.2 8732.2 736.0 368.0 3167.0 8606.1 8605.5 8731.9 738.0 369.0 3175.6 8606.1 8605.5 8731.5 740.0 370.0 3184.4 8606.6 8805.4 8731.7 742.0 371.0 3193.4 8607.5 8933.6 8732.3 744.0 372.0 3202.3 8608.4 8933.6 8732.8 746.0 373.0 3211.2 8609.2 8933.6 8733.4 748.0 374.0 3220.2 8610.1 8933.6 8733.9 750.0 375.0 3229.1 8611.0 8933.6 8734.4 752.0 376.0 3238.0 8611.8 8933.6 8735.0 754.0 377.0 3247.0 8612.7 8933.6 8735.5 756.0 378.0 3255.9 8613.5 8933.6 8736.0 758.0 379.0 3264.8 8614.4 8933.6 8736.6 760.0 380.0 3273.8 8615.2 8933.6 8737.1 1 11 1 762.0 381.0 3282.7 8616.0 8933.6 8737.6 764.0 382.0 3291.6 8616.9 8933.6 8738.1 766.0 383.0 3300.6 8617.7 8933.8 8738.6 768.0 384.0 3309.5 8618.5 8933.6 8739.2 770.0 385.0 3318.4 8619.3 8933.6 8739.7 772.0 386.0 3327.4 8620.2 8933.6 8740.2 774.0 387.0 3336.3 8621.0 8933.6 8740.7 776.0 388.0 3345.3 8621.8 8933.6 8741.2 778.0 389.0 3354.2 8622.6 8933.6 8741.7 780.0 390.0 3363.1 8623.4 8933.6 8742.2 782.0 391.0 3372.1 8624.2 8933.6 8742.7 784.0 392.0 3381.0 8625.0 8933.6 8743.2 786.0 393.0 3389.9 8625.7 8933.6 8743.7 788.0 394.0 3398.9 8626.5 8933.6 8744.2 790.0 395.0 3407.7 8627.1 8865.2 8744.5 792.0 396.0 3415.9 8625.9 8157.0 8743.0 794.0 397.0 3424.0 8624.8 8156.7 8741.6 796.0 398.0 3432.2 8623.6 8156.7 8740.2 798.0 399.0 3440.3 8622.4 8156.7 8738.8 800.0 400.0 3448.5 8621.3 8156.7 8737.4 802.0 401.0 3456.7 8620.1 8156.7 8736.0 804.0 402.0 3464.8 8618.9 8156.7 8734.6 806.0 403.0 3473.0 8617.8 8156.7 8733.2 808.0 404.0 3481.1 8616.7 8156.7 8731.8 810.0 405.0 3489.3 8615.5 8157.0 8730.4 812.0 406.0 3497.4 8614.4 8156.7 8729.1 814.0 407.0 3505.6 8613.3 8156.7 8727.7 816.0 408.0 3513.8 8612.1 8156.7 8726.3 818.0 409.0 3521.9 8611.0 8156.7 8725.0 III 820.0 410.0 3530.1 8609.9 8156.7 8723.7 822.0 411.0 3538.2 8608.8 8156.7 8722.3 824.0 412.0 3546.4 8607.7 8156.7 8721.0 24 of 32 vsfusion Union Oil Company of Calia S Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS • (TGD) (DGD) 826.0 413.0 3554.5 8606.6 8156.7 8719.7 828.0 414.0 3562.7 8605.5 8157.0 8718.4 830.0 415.0 3570.9 8604.5 8156.7 8717.0 832.0 416.0 3579.0 8603.4 8158.2 8715.7 834.0 417.0 3588.5 8605.4 9448.5 8717.6 836.0 418.0 3597.9 8607.4 9448.5 8719.4 838.0 419.0 3607.4 8609.4 9448.5 8721.2 840.0 420.0 3616.8 8611.4 9448.5 8723.0 842.0 421.0 3626.3 8613.4 9448.5 8724.8 844.0 422.0 3635.7 8615.4 9448.5 8726.6 846.0 423.0 3645.2 8617.4 9448.5 8728.4 848.0 424.0 3654.6 8619.3 9448.5 8730.1 850.0 425.0 3664.0 8621.3 9448.5 8731.9 852.0 426.0 3673.5 8623.2 9448.5 8733.7 854.0 427.0 3682.9 8625.2 9448.5 8735.4 856.0 428.0 3692.8 8628.1 9880.6 8738.2 858.0 429.0 3702.8 8631.3 10001.0 8741.4 860.0 430.0 3712.8 8634.5 10000.7 8744.5 862.0 431.0 3722.8 8637.7 10001.0 8747.7 864.0 432.0 3732.8 8640.8 10001.0 8750.8 866.0 433.0 3742.8 8643.9 10000.7 8753.9 868.0 434.0 3752.8 8647.1 10001.0 8756.9 870.0 435.0 3762.8 8650.2 10000.7 8760.0 872.0 436.0 3772.8 8653.3 10001.0 8763.1 874.0 437.0 3782.8 8656.4 10000.7 8766.1 876.0 438.0 3792.8 8659.4 10001.0 8769.1 878.0 439.0 3802.8 8662.5 10000.7 8772.1 880.0 440.0 3812.8 8665.5 10001.0 8775.1 1 111 882.0 441.0 3822.8 8668.6 10001.0 8778.1 884.0 442.0 3832.8 8671.6 10000.7 8781.0 886.0 443.0 3842.8 8674.6 10001.0 8784.0 888.0 444.0 3852.8 8677.6 10000.7 8786.9 890.0 445.0 3862.8 8680.5 10001.0 8789.8 892.0 446.0 3872.8 8683.5 10000.7 8792.7 894.0 447.0 3882.8 8686.4 10001.0 8795.6 896.0 448.0 3892.8 8689.4 10001.0 8798.5 898.0 449.0 3902.8 8692.3 10000.7 8801.3 900.0 450.0 3912.8 8695.2 10001.0 8804.2 902.0 451.0 3921.8 8695.8 8977.1 8804.6 904.0 452.0 3930.7 8696.2 8843.3 8804.7 906.0 453.0 3939.5 8696.5 8843.3 8804.8 908.0 454.0 3948.4 8696.8 8843.3 8804.8 910.0 455.0 3957.2 8697.1 8843.3 8804.9 912.0 456.0 3966.0 8697.5 8843.3 8805.0 914.0 457.0 3974.9 8697.8 8843.3 8805.1 916.0 458.0 3984.0 8698.6 9085.0 8805.7 918.0 459.0 3993.3 8699.9 9296.1 8806.8 920.0 460.0 4002.6 8701.2 9295.9 8807.9 922.0 461.0 4011.9 8702.5 9295.9 8809.0 924.0 462.0 4021.1 8703.8 9295.9 8810.1 926.0 463.0 4030.4 8705.1 9295.9 8811.2 928.0 464.0 4039.7 8706.3 9295.9 8812.2 930.0 465.0 4049.0 8707.6 9295.9 8813.3 932.0 466.0 4058.3 8708.9 9295.9 8814.4 934.0 467.0 4067.6 8710.1 9295.9 8815.4 936.0 468.0 4076.9 8711.4 9295.9 8816.5 938.0 469.0 4086.2 8712.6 9295.9 8817.5 1 11 1 940.0 470.0 4095.5 8713.9 9295.9 8818.6 942.0 471.0 4104.8 8715.1 9295.9 8819.6 944.0 472.0 4114.1 8716.3 9295.9 8820.6 25 of 32 vsfusion Union Oil Company of Cal if a Well: Blue Buck 6 -7 -9 TIME DATUM VELOCITY 2 WAY 1 WAY DEPTH AVERAGE INTERVAL RMS (TGD) (DGD) 1111 946.0 473.0 4123.4 8717.6 9295.9 8821.7 948.0 474.0 4132.7 8718.8 9295.9 8822.7 950.0 475.0 4142.0 8720.0 9295.9 8823.7 952.0 476.0 4151.3 8721.2 9295.9 8824.7 954.0 477.0 4160.6 8722.4 9295.9 8825.8 956.0 478.0 4169.9 8723.6 9295.9 8826.8 958.0 479.0 4179.2 8724.8 9298.8 8827.8 960.0 480.0 4188.6 8726.3 9441.4 8829.1 962.0 481.0 4198.1 8727.8 9441.4 8830.4 964.0 482.0 4207.5 8729.3 9441.4 8831.7 966.0 483.0 4216.9 8730.7 9441.4 8833.0 968.0 484.0 4226.4 8732.2 9440.9 8834.3 970.0 485.0 4235.8 8733.7 9441.4 8835.6 972.0 486.0 4245.3 8735.1 9441.4 8836.9 974.0 487.0 4254.7 8736.6 9441.4 8838.2 976.0 488.0 4264.2 8738.0 9441.4 8839.5 978.0 489.0 4273.6 8739.5 9441.4 8840.8 980.0 490.0 4283.0 8740.9 9441.4 8842.0 982.0 491.0 4292.5 8742.3 9440.9 8843.3 984.0 492.0 4301.9 8743.7 9441.4 8844.5 986.0 493.0 4311.4 8745.2 9441.4 8845.8 988.0 494.0 4320.8 8746.6 9441.4 8847.0 990.0 495.0 4330.2 8748.0 9441.4 8848.3 992.0 496.0 4339.7 8749.4 9441.4 8849.5 994.0 497.0 4349.1 8750.8 9441.4 8850.7 996.0 498.0 4358.6 8752.1 9440.9 8852.0 998.0 499.0 4368.0 8753.5 9441.4 8853.2 1000.0 500.0 4377.5 8754.9 9441.4 8854.4 1111 1002.0 501.0 4386.8 8756.1 9377.4 8855.5 1004.0 502.0 4396.2 8757.4 9364.3 8856.5 1006.0 503.0 4405.6 8758.6 9364.7 8857.6 1008.0 504.0 4414.9 8759.8 9364.7 8858.6 1010.0 505.0 4424.3 8761.0 9364.7 8859.6 1012.0 506.0 4433.7 8762.2 9364.7 8860.7 1014.0 507.0 4443.0 8763.3 9364.3 8861.7 1016.0 508.0 4452.4 8764.5 9364.7 8862.7 1111 26 of 32 ysfusion Union Oil Company of Calfia S Well: Blue Buck 6 -7 -9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 • 3.3 TIME/DEPTH INFORMATION GEOPHONE REFERENCE ELEVATION 421.00 FT ABOVE SEA LEVEL DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC ALL TIMES ARE TWO -WAY TIMES CORRECTED TO DATUM INTERPOLATED EVERY 1.00 MS TIME 0 1 2 3 4 5 6 7 8 9 0 5 11 16 22 27 32 38 43 49 10 54 59 65 70 76 81 86 92 97 103 20 108 114 119 124 130 135 141 146 151 157 30 162 168 173 178 184 189 195 200 205 211 40 216 222 227 232 238 243 249 254 259 265 50 270 276 281 287 292 297 303 308 314 319 60 324 330 335 341 346 351 357 362 368 373 70 378 384 389 395 400 405 411 416 422 427 80 432 438 443 449 454 460 465 470 476 481 90 487 492 497 503 508 514 519 524 530 535 100 541 546 551 557 562 568 573 578 584 589 110 594 600 605 610 615 621 626 631 636 642 120 647 652 657 663 668 673 679 684 689 694 130 700 705 710 715 721 726 731 736 742 747 140 752 758 763 768 773 779 784 789 794 799 150 804 809 814 819 824 829 834 839 844 849 • 160 854 859 864 870 875 880 885 890 895 900 170 905 910 915 920 925 930 935 940 945 950 180 955 960 965 971 976 981 986 992 997 1002 190 1008 1013 1018 1024 1029 1035 1040 1045 1051 1056 200 1062 1067 1072 1078 1083 1089 1094 1099 1105 1110 210 1115 1121 1126 1132 1137 1142 1148 1153 1159 1164 220 1169 1175 1180 1184 1187 1191 1195 1199 1202 1206 230 1210 1214 1218 1221 1225 1229 1233 1236 1240 1244 240 1248 1252 1255 1259 1263 1267 1270 1274 1278 1282 250 1286 1289 1293 1297 1301 1304 1308 1312 1316 1319 260 1323 1327 1331 1335 1338 1342 1346 1350 1353 1357 270 1361 1365 1369 1372 1376 1380 1383 1387 1390 1393 280 1397 1400 1404 1407 1410 1414 1417 1421 1424 1427 290 1431 1434 1438 1441 1444 1448 1451 1454 1458 1461 300 1465 1468 1471 1475 1478 1481 1485 1488 1491 1495 310 1498 1501 1505 1508 1512 1515 1518 1522 1525 1528 320 1532 1535 1538 1542 1545 1548 1552 1555 1559 1562 330 1565 1569 1572 1575 1579 1582 1586 1589 1593 1597 340 1600 1604 1607 1611 1615 1618 1622 1625 1629 1633 350 1636 1640 1643 1647 1651 1654 1658 1661 1665 1668 360 1672 1676 1679 1683 1686 1690 1694 1697 1701 1704 370 1708 1712 1715 1719 1722 1726 1730 1733 1737 1740 380 1744 1748 1751 1755 1758 1762 1765 1769 1773 1776 390 1780 1783 1786 1790 1793 1797 1800 1803 1807 1810 400 1813 1817 1820 1823 1827 1830 1833 1837 1840 1843 410 1847 1850 1853 1857 1860 1863 1867 1870 1873 1877 420 1880 1884 1887 1890 1894 1897 1900 1904 1907 1910 430 1914 1917 1920 1924 1927 1930 1934 1938 1942 1946 440 1950 1954 1958 1962 1966 1970 1974 1978 1982 1986 • 450 1990 1994 1998 2002 2006 2010 2014 2018 2022 2026 460 2030 2034 2038 2043 2047 2051 2055 2059 2063 2067 470 2071 2075 2079 2083 2087 2091 2095 2099 2103 2107 480 2111 2115 2119 2123 2127 2131 2135 2139 2143 2147 27 of 32 vsfusion Union Oil Company of Calla • Well: Blue Buck 6 -7 -9 TIME 0 1 2 3 4 5 6 7 8 9 490 2151 2155 2159 2162 2166 2170 2173 2177 2181 2184 • 500 2188 2192 2196 2199 2203 2207 2210 2214 2218 2221 510 2225 2229 2232 2236 2240 2243 2247 2251 2255 2258 520 2262 2266 2269 2273 2277 2280 2284 2288 2291 2295 530 2299 2303 2306 2310 2314 2317 2321 2325 2328 2332 540 2336 2339 2343 2347 2350 2354 2358 2362 2365 2369 550 2373 2376 2380 2385 2389 2393 2398 2402 2407 2411 560 2415 2420 2424 2429 2433 2438 2442 2446 2451 2455 570 2460 2464 2468 2473 2477 2482 2486 2491 2495 2499 580 2504 2508 2513 2517 2521 2526 2530 2535 2539 2544 590 2548 2552 2557 2561 2566 2570 2574 2579 2583 2588 600 2592 2596 2601 2605 2609 2613 2617 2620 2624 2628 610 2632 2636 2640 2644 2648 2652 2656 2660 2664 2668 620 2672 2676 2680 2684 2688 2692 2696 2700 2704 2708 630 2712 2716 2719 2723 2727 2731 2735 2739 2743 2747 640 2751 2755 2759 2763 2767 2771 2775 2779 2783 2788 650 2792 2797 2801 2805 2810 2814 2819 2823 2827 2832 660 2836 2841 2845 2850 2854 2858 2863 2867 2872 2876 670 2880 2885 2889 2894 2898 2903 2907 2911 2916 2920 680 2925 2929 2934 2938 2942 2947 2951 2956 2960 2964 690 2969 2973 2978 2982 2986 2991 2995 2999 3004 3008 700 3012 3016 3021 3025 3029 3034 3038 3042 3047 3051 710 3055 3059 3064 3068 3072 3077 3081 3085 3090 3094 720 3098 3102 3107 3111 3115 3120 3124 3128 3133 3137 730 3141 3146 3150 3154 3158 3163 3167 3171 3176 3180 740 3184 3189 3193 3198 3202 3207 3211 3216 3220 3225 750 3229 3234 3238 3243 3247 3251 3256 3260 3265 3269 760 3274 3278 3283 3287 3292 3296 3301 3305 3310 3314 770 3318 3323 3327 3332 3336 3341 3345 3350 3354 3359 780 3363 3368 3372 3377 3381 3385 3390 3394 3399 3403 • 790 3408 3412 3416 3420 3424 3428 3432 3436 3440 3444 800 3449 3453 3457 3461 3465 3469 3473 3477 3481 3485 810 3489 3493 3497 3502 3506 3510 3514 3518 3522 3526 820 3530 3534 3538 3542 3546 3550 3555 3559 3563 3567 830 3571 3575 3579 3584 3588 3593 3598 3603 3607 3612 840 3617 3622 3626 3631 3636 3640 3645 3650 3655 3659 850 3664 3669 3673 3678 3683 3688 3693 3698 3703 3708 860 3713 3718 3723 3728 3733 3738 3743 3748 3753 3758 870 3763 3768 3773 3778 3783 3788 3793 3798 3803 3808 880 3813 3818 3823 3828 3833 3838 3843 3848 3853 3858 890 3863 3868 3873 3878 3883 3888 3893 3898 3903 3908 900 3913 3917 3922 3926 3931 3935 3940 3944 3948 3953 910 3957 3962 3966 3970 3975 3979 3984 3989 3993 3998 920 4003 4007 4012 4017 4021 4026 4030 4035 4040 4044 930 4049 4054 4058 4063 4068 4072 4077 4082 4086 4091 940 4096 4100 4105 4109 4114 4119 4123 4128 4133 4137 950 4142 4147 4151 4156 4161 4165 4170 4175 4179 4184 960 4189 4193 4198 4203 4208 4212 4217 4222 4226 4231 970 4236 4241 4245 4250 4255 4259 4264 4269 4274 4278 980 4283 4288 4292 4297 4302 4307 4311 4316 4321 4326 990 4330 4335 4340 4344 4349 4354 4359 4363 4368 4373 1000 4377 4382 4387 4392 4396 4401 4406 4410 4415 4420 1010 4424 4429 4434 4438 4443 4448 4452 • 28 of 32 vsfusion Union Oil Company of Cali�ia • Well: Blue Buck 6 -7 -9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 4110 3.4 DEPTH /TIME INFORMATION GEOPHONE REFERENCE ELEVATION 421.00 FT ABOVE SEA LEVEL DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC ALL TIMES ARE TWO -WAY TIMES CORRECTED TO DATUM INTERPOLATED EVERY 10.00 FT DEPTH 0 10 20 30 40 50 60 70 80 90 0 2 4 6 7 9 11 13 15 17 100 18 20 22 24 26 28 30 31 33 35 200 37 39 41 43 44 46 48 50 52 54 300 55 57 59 61 63 65 67 68 70 72 400 74 76 78 80 81 83 85 87 89 91 500 92 94 96 98 100 102 104 105 107 109 600 111 113 115 117 119 121 122 124 126 128 700 130 132 134 136 138 140 141 143 145 147 800 149 151 153 155 157 159 161 163 165 167 900 169 171 173 175 177 179 181 183 185 187 1000 189 190 192 194 196 198 200 202 203 205 1100 207 209 211 213 215 216 218 220 222 225 1200 227 230 233 235 238 241 243 246 249 251 1300 254 256 259 262 264 267 270 272 275 278 1400 281 284 287 290 293 296 299 302 305 308 1500 311 314 317 319 322 325 328 331 334 337 • 1600 340 343 346 348 351 354 357 359 362 365 1700 368 371 373 376 379 382 384 387 390 393 1800 396 399 402 405 408 411 414 417 420 423 1900 426 429 432 435 438 440 443 445 448 450 2000 452 455 457 460 462 465 467 470 472 475 2100 477 480 482 485 487 490 492 495 498 501 2200 503 506 509 511 514 517 519 522 525 528 2300 530 533 536 538 541 544 547 549 552 554 2400 556 559 561 563 566 568 570 572 575 577 2500 579 581 584 586 588 590 593 595 597 600 2600 602 604 607 609 612 614 617 620 622 625 2700 627 630 632 635 637 640 642 645 647 650 2800 652 654 656 659 661 663 665 668 670 672 2900 674 677 679 681 683 686 688 690 693 695 3000 697 700 702 704 706 709 711 713 716 718 3100 720 723 725 727 730 732 734 737 739 741 3200 743 746 748 750 752 755 757 759 761 764 3300 766 768 770 773 775 777 779 782 784 786 3400 788 791 793 795 798 800 803 805 808 810 3500 813 815 818 820 822 825 827 830 832 834 3600 836 839 841 843 845 847 849 851 853 855 3700 857 859 861 863 865 867 869 871 873 875 3800 877 879 881 883 885 887 889 891 893 895 3900 897 899 902 904 906 908 911 913 915 917 4000 919 922 924 926 928 930 932 935 937 939 4100 941 943 945 947 950 952 954 956 958 960 4200 962 965 967 969 971 973 975 977 979 981 4300 984 986 988 990 992 994 996 998 1001 1003 4400 1005 1007 1009 1011 1013 1015 • 29 of 32 vsfusion 1 Union Oil Company of CalLia Well: Blue Buck 6 -7 -9 UNION OIL COMPANY OF CALIFORNIA WELL BLUE BUCK 6 -7 -9 3.5 DEPTH / TIME INFORMATION TABLE III DATUM ELEVATION 400.00 FT ABOVE SEA LEVEL DATUM CORRECT. VELOCITY 13000.0 FT /SEC * = NOT USED IN VELOCITY COMPUTATIONS MEASURED VERTICAL DATUM RAW 1 -WAY 2 -WAY GEOPHONE GEOPHONE GEOPHONE PICK VERTICAL VERTICAL 1 DEPTH DEPTH DEPTH TIME TIME TIME I (FT) (FT) (FT) (MS) (MS) (MS) 200.0 200.0 179.0 60.93 35.47 70.94 * 421.0 421.0 400.0 45.64 38.70 77.40 * 600.0 600.0 579.0 58.33 53.55 107.10 800.0 800.0 779.0 76.18 72.54 145.07 1000.0 1000.0 979.0 95.30 92.34 184.68 1200.0 1200.0 1179.0 113.36 110.89 221.78 1400.0 1400.0 1379.0 139.62 137.38 274.77 1455.0 1455.0 1434.0 147.65 145.46 290.92 1600.0 • 1600.0 1579.0 169.13 167.04 334.09 1800.0 1800.0 1779.0 196.80 194.88 389.77 1955.0 1955.0 1934.0 219.85 218.04 436.08 2000.0 2000.0 1979.0 225.41 223.63 447.26 2170.0 2170.0 2149.0 246.35 244.70 489.39 2400.0 2400.0 2379.0 277.39 275.87 551.73 2620.0 2620.0 2599.0 302.18 300.79 601.57 2800.0 2800.0 2779.0 324.82 323.51 647.03 1111 3000.0 3000.0 2979.0 347.37 346.15 692.30 3135.0 3135.0 3114.0 365.49 364.32 728.64 * 3200.0 3200.0 3179.0 370.53 369.39 738.78 3428.0 3428.0 3407.0 395.97 394.91 789.82 3600.0 3600.0 3579.0 417.01 416.00 832.00 3706.0 3706.0 3685.0 428.20 427.22 854.44 3800.0 3800.0 3779.0 439.28 438.33 876.65 * 3935.0 3935.0 3914.0 451.03 450.12 900.23 4000.0 4000.0 3979.0 458.37 457.47 914.93 4105.0 4105.0 4084.0 470.97 470.09 940.17 * 4200.0 4200.0 4179.0 479.84 478.98 957.96 4400.0 4400.0 4379.0 500.98 500.16 1000.33 4475.0 4475.0 4454.0 508.97 508.17 1016.35 III 30 of 32 vsfusion Union Oil Company of Caliia 0 Well: Blue Buck 6 -7 -9 4. LIST OF FIGURES . • Figure 1 Acquisition Parameters Client: Union Oil Company of California Well: Blue Buck 6 -7 -9 f S -R Source Location Receiver Reference (KB) Offset = 250 ft + Azimuth = 25 °N iiir Elev. = 421 ft Source Elevation = 400 ft - + , - Ground Elev. at ♦ t It 4 Wellhead = 400 ft 1 • 1 1 ITCD `% 1 Seismic Datum Elev. i + `. i = 400 above MSL '• .` i 1 . Replacement • Velocity (VDC) v % . • • • MSL = 13,000 ft/sec .` i O Vibroseis Source • • Receiver 1 � ', DGM i • Receiver 2 • • T i • i TGD DGD ` ♦._._._.♦ Times •% i % T Raw Pick Time '� (1) i (ie. Time from Source to Receiver) �',-..- • TGD Vertical Time Corrected to Datum . • = Tcos(I) + TCD i where (1) is Source - Receiver Offset Angle \� i and TCD is Datum Correction Time (= [SDE- ESyVDC) ', i • DELDGT Difference in TGD between Receivers T '. DELDGT : DELDGD ♦ I. Distances Velocity S -R Source - Receiver Offset (SRC_REC) VDC Datum Correction Velocity ES Elevation of Source above MSL DGM Measured Depth of Receiver below Reference DGD True Vertical Depth of Receiver below Datum DELDGD Difference in DGD between Receivers SDE Seismic Datum Elevation above MSL • 31 of 32 vsfus Au....o..,■vw ....er uoisnjsA Z£ Jo Z£ 0 Y Coord. (ft) -1-1 f:) o o 0 0 0 En C 1111 1111 ! 0 c — 1 :o m U) 0 0 "'I CD 0. o -----4--- --1—t-1--t--'-'1-- o -, CD R ^ n co a' i 1 X a II E-- ---I 1--t-- C) il 7j 0 0 0— , cn 0 7,1 2. = („)••• 0 ii 8-a < MO • 7 ,,, (0. ' . . . * 0 - -- o - o • . • • • 0 0 :0 0 oil- ....,.... 0 3 0 (J) True Vertical Depth Below Datum (ft) co C 3 LA NJ NJ -s 0 01 0 cn 0 (31 0 to CD CD 0 0 0 0 0 0 • e • • e • • • • ? I ' * = CD IIIIMME111111111MIINUMMOU111111.11111!1142 0 a CD at jr,•%.< 0 = ••• • • • • = 0 o c v) to 1 -1-1-1-1-- -1-1-1-1- 1 - t - t - t - t - - 1 - 1 - 1 - 1 - 1 -:-:•-t- o 0 -. a * r-ii 2 1411 B111 1111 1111 1101 1111 1111 1111 111 o R- CD 2 D- c 1111/ -1-1-1--- -:-1-..--:- -t-t-1-1- -1-1-1-1- -1--:-1-:-- -t-t-t-t- -1-1-1--:- -..---:--:-- -:.--t- , . 1 1111 1111 1111 1101 1111 1111 1 11 III Hq j i ........ -1--1-1-1-- -1.-1-4-4- -1--I-1-1- jr-1--1-- -f-f-f-f- --1-4--1--1- -:-----1-- -I--E-f- . . 1 1111 1111 1111 1101 1111 Illi I 01 111 -- F a n ..Cc (I) * CD 0 0 Ea 0 n i c 3 1111 1111 11 1111 111 / 1111 111 11 111 • W ° 1 0 ... II 1111 1111 1111 1111 . a I 1 1 1 1 1 , I • 1 . , . . . s 1 (11 0 --I 0 ,. ,..... /".■ te 0 ■•••■ . 11 ...J1 1111 1111 1111 1111 1111 1111 111 0 i;L_ 1111 111 1111 1111 1111 1111 1111 1111 111 111 1111 1111 1111 1111 1111 11111 III .. Itt '“ I 1 1 t 1 ttl ti 1 .. tt . : . : . 1 It. 11.1 1111 1111 1111 Jill 1111 1111 111 . '” -■-■-■-i- -1-1-+1- - -1-1-1-1- -1-1-1-1- -- -f-f-f- III 111 1111 1111 111 1111 11 li H . H ....-- --- -1144- -1-1-1-1- ----I-4- -ff41- -41--1--:- ------ i.I-- -I4f- .... .... 111 1111 1111 0 D 22 CD — fp — al 7 (4 CD 0 CL X N 0 1 0 C) 17 -, 0 — 3 3 CD r. • > Cn i %< In ...... O ...1 0 C w 1 •" ;1/4- o to 0 fa 0 0 e, ...,..... ... I IMIMII IMI IM MI EOM ES El 0 ;42 r-1- —4 —... M o True Vertical Depth Below Datum (ft) 4A CA CA NJ NJ - -. 0 01 0 cn 0 Ul 0 Ul 0 0 0 0 0 CD CD 0 0 0 0 0 0 0 0 0 0 , 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1111 I l l 1 1 1 ■1 : PPPD. PPP: i" : PDI P P:D A : WI is P: P Do : 1): P. P.: P:D: I): 0 0 .. . .... .. .. .. .. 1 III 111 I le. 1 11 c , . 0 ---1-4--.--..---..-44-1--.4-;-;-4-4-4--.--.---:--..--.,-;-- - -4-4-4--,---4-4-4-'r--44-4- 0 c Ul ? . . . 0 0 , -- - - a c l i co 6 I o . 1 11 1111 II 1 II 111 111 1111 11 r r• ...I...4 01...1■•■■•■••■••■■• ■•■ • --------------- ■•■■•■ 1 •■•■•■■■•■■11.■ ................. ■■•■■1■•■•■ • a II < › . . . . . .. . . . 1 111 ii 8 1111 111 1 11 1111 11 1 II III 111 111,1 111 R —h ii• vi * o _ 11 x, c: , 1 1 0 Q 3 ---71J-1- 0 . ...I ,■•■ ......■,......,....-, ....... ... ■ ■ ■■■. ..... -....--.....■, ..... .■,■,■:■ ■ ■,■,...■ ... 4. . ■•■■■■•■■•■■,■ = 10 1 1111 1 II 1111 III 1111 1111 111 3 2 IN ..o . . . 1111 I II 1111 III 1111 1111 111 = = FD (a.— 12/ IC I 1111 11 11 1111 II1 11/1 1111 III -a, . . . 111 1 11 111.1 III 1111 1111 III I ÷j+.. 1 .. ±i - .-t -1-4- — -1-1-1-1----:--:--I-1---f-f-f- z IA 0 CD 13 (;) Ili I 1111 11 II 1111 111 1111 1111 111 n 0 o A ; ; ; ; ; ; ; . . . . . . . . 11111 III 11111 111 1/11 1111 . rs , a .... .... ... 3 l ' i ' .... a = ;; ; ; ; ; ; ; ; ; ; ; 8 , •■■•■• 1111 1111 1111 1111 1111 111 1111 1111 111 /-1- 0 1111 1111 1111 1111 1111 111 1111 1111 111 ■■■■•■ Ca 0 a -0 0 .,.. 6 'long anig :110A1 • De!pop jo ‘tuvawop i!co uopin • • CD -Rom Listing March, 2009 Client: Union Oil Company of California Well: Blue Buck 6 -7 -9 Location: White Hills, Alaska Velocity Survey SEGY Files: # File Name # of Tr. Description 1 raw.sgy 2072 Raw Data 2 sum3c.sgy 204 Stacked Data 3 velraw.sgy 29 Input for velocity analysis 4 velout.sgy 24 Velocity analysis data 5 SEGY - Format.doc CGM Files: File Name Description fig2.cgm Survey Configuration 2 en2.cgm Enclosure 2: Velocity Analysis Plot (250 ft/in) PDF Files: # File Name Description 1 fig2.cgm.pdf Survey Configuration 2 en2.cgm.pdf Enclosure 2: Velocity Analysis Plot (250 ft/in) 3 enl- OB- report.pdf Field Engineer's Report Report: File Name Description 1 Chevron10437.doc VS Survey Report, Microsoft Word Format Table Files: File Name Description 1 10ft.txt Interpolated Every 10 ft Below Datum 2 2ms.txt Interpolated Every 2 ms Below Datum 3 geom.txt Sources - Reverse Geometry Table 4 time.txt Time -Depth Information Table 5 velo.txt Velocity Table 6 I -T -D.txt Interpolated Time -Depth Information Table, Every 1 ms, Two way time below datum 7 I -D -T.txt Interpolated Depth -Time Information Table, Every 10 ft Below Datum 8 depth - time.txt Depth -Time Information Table 9 depth - time.xls Depth -Time Information Table, Microsoft Excel Format Dot 90 1 vsfusion 1 of 1 • Enclosure 1 BAKER HUGHES Borehole Seismic Survey Field Report VELOCITY SURVEY • Prepared by BAKER ATLAS NORTH AMERICA DSS for UNION OIL COMPANY OF CALIFORNIA BLUE BUCK 6 -7 -9 WHITE HILLS ALASKA USA The preliminary processing of the data contained within this Field Report has been performed by a Baker Atlas Field Engineer, who has relied on experience and has exercised his /her best judgment based on measurements, empirical relationships and assumptions, and industry practice, which are not infallible. Professional opinions of this nature may differ. Consequently, Baker Atlas will not be liable or responsible for any loss, cost, damages, or expenses whatsoever incurred or sustained by the customer resulting from any interpretation or calculations contained within this report. VSProwess Acq 1.96 UNION OIL COMPANY OF CORNIA BLUE BUCK 6 -7 -� Survey report Survey date FEBRUARY 26 2009 Job reference N/A Type of service VELOCITY SURVEY Country USA Oilfield WHITE HILLS ALASKA Well location east 149 59' 27" Well location north 69 59' 31.33" Rig name NABORS 106E Rig heading 0 degrees Datum description MSL Seismic datum elevation 400.0 ft above MSL Well reference level KB Reference level elevation 421.0 ft above MSL Water velocity 5000.0 ft/s Total Depth 4495' WITH 8.5" OPEN HOLE Well deviation N/A Casing details 9.625" SURFACE TO 1916' Liner details N/A Wireline contractor BA ALASKS Observer RICHARD KLEB Client representative QIANG SUN Tool system ANALOG Controller type GSP Sample interval 1000 us Tool system zeroed at Top Receiver Gamma tool None Gamma tool depth offset 0.0 ft Sinker weight N/A Cable adapters N/A Additional equipment 735 XA GAMMA RAY BUS VSProwess Acq 1.96 UNION OIL COMPANY OF uFORNIA S BLUE BUCK 6 -7 -9 Receiver report Tool 1 Type ASR Sensor pack GIMBAL Serial number 10303265 Depth offset from zero 0.00 ft Arm Standard Sensor polarity is Baker Hughes version 1.1 Jan 07 W as VSProwess Acq 1.96 UNION OIL COMPANY OF C /ORNIA BLUE BUCK 6 -7 -9 Channel report Channel allocation Sensor description Scaling applied 1 Tool 1 VZ SM4- 3500- UB -10HZ -1.000 2 Tool 1 HX SM4- 3500- HB -10HZ 1.000 3 Tool 1 HY SM4- 3500- HB -10HZ 1.000 7 Reference Pilot sweep 1.000 II PI Il BAKER HUGHES VSProwess Acq 1.96 UNION OIL COMPANY OF C FORNIA S BLUE BUCK 6 -7 -9 Source 1 report LAND Observer RICHARD KLEB Source AHV -IV 62000 LBS PF VIBRATOR SCX (Easting) 105.7 ft SCY (Northing) 226.6 ft Source control system SERCEL 432 DSD External delay 0.0 ms Air supply N/A Airgun pressure 0 psi Fire control RELAY A Source reference channel 7 Record data length 10000 samples QC data length 4000 samples Source reference elevation (SRE) 400.0 ft above MSL Source depth below SRE 0.0 ft Monitor ASC SENSORS Monitor distance from source 0.0 ft Source environment LAND Weathering velocity ? Weathering depth ? Elevation velocity 13000.0 ft/s Reference pick Positive peak Geophone pick Positive peak Vibrator details Vibrator electronics SERCEL DSD Reference sweep generator SERCEL DPG Sweep period 6000.0 ms Start frequency 6.0 Hz End frequency 100.0 Hz Sweep description LINEAR Start taper period 200.0 ms End taper period 200.0 ms Encoder sweep phase 0 degrees Vibrator sweep phase 0 degrees Phase locking Ground force Vibrator type and unit numbers BAKER HUGHES VSProwess Acq 1.96 UNION OIL COMPANY OF CIORNIA B LUE BUCK 6 -7 -9 Journal Date Time Record Src /Set Stk MD(ft) Fix SCX(ft) SCY(ft) 26Feb2009 19:32:11 >18:00 RIGGING UP SEISMIC 26Feb2009 19:32:39 >19:30 RIH 26Feb2009 19:47:48 1 1/1 1 1455.0 0 105.7 226.6 26Feb2009 19:58:22 2 1/1 1 1455.0 0 105.7 226.6 26Feb2009 19:58:49 3 1/1 1 1455.0 0 105.7 226.6 26Feb2009 19:59:05 4 1/1 1 1455.0 0 105.7 226.6 26Feb2009 19:59:22 5 1/1 1 1455.0 0 105.7 226.6 26Feb2009 19:59:38 6 1/1 1 1455.0 0 105.7 226.6 26Feb2009 20:04:31 >PERMAFROST SHOT WITH TIE IN AT 1470' + 1.5' CORRECTION. 26Feb2009 20:33:39 7 1/1 2 4200.0 0 105.7 226.6 26Feb2009 20:33:52 8 1/1 2 4200.0 0 105.7 226.6 26Feb2009 20:34:05 9 1/1 2 4200.0 0 105.7 226.6 26Feb2009 20:34:19 10 1/1 2 4200.0 0 105.7 226.6 26Feb2009 20:35:22 11 1/1 2 4200.0 0 105.7 226.6 26Feb2009 20:39:00 >TIE IN WITH 0' CORRECTION AND CHECK SHOT. 26Feb2009 20:41:33 12 1/1 3 4475.0 0 105.7 226.6 26Feb2009 20:41:50 13 1/1 3 4475.0 0 105.7 226.6 26Feb2009 20:42:06 14 1/1 3 4475.0 0 105.7 226.6 26Feb2009 20:42:19 15 1/1 3 4475.0 0 105.7 226.6 26Feb2009 20:42:32 16 1/1 3 4475.0 0 105.7 226.6 26Feb2009 20:42:45 17 1/1 3 4475.0 0 105.7 226.6 26Feb2009 20:43:57 >TD SHOT. SAT DOWN AT 4483' 26Feb2009 20:44:08 >FILE 12 VOID NOISY. 26Feb2009 20:44:55 18 1/1 4 4400.0 0 105.7 226.6 26Feb2009 20:45:08 19 1/1 4 4400.0 0 105.7 226.6 26Feb2009 20:45:22 20 1/1 4 4400.0 0 105.7 226.6 26Feb2009 20:45:35 21 1/1 4 4400.0 0 105.7 226.6 26Feb2009 20:48:32 22 1/1 5 4200.0 0 105.7 226.6 26Feb2009 20:48:46 23 1/1 5 4200.0 0 105.7 226.6 26Feb2009 20:48:59 24 1/1 5 4200.0 0 105.7 226.6 26Feb2009 20:49 :12 25 1/1 5 4200.0 0 105.7 226.6 26Feb2009 20:49:25 26 1/1 5 4200.0 0 105.7 226.6 26Feb2009 20:50:35 27 1/1 6 4199.0 0 105.7 226.6 26Feb2009 20:50:48 28 1/1 6 4199.0 0 105.7 226.6 26Feb2009 20:51:01 29 1/1 6 4199.0 0 105.7 226.6 26Feb2009 20:51:15 30 1/1 6 4199.0 0 105.7 226.6 26Feb2009 20:51:28 31 1/1 6 4199.0 0 105.7 226.6 26Feb2009 20:52:51 >CLIENT REQUESTED TEST WITH ONE VIBRATOR. 26Feb2009 20:53:27 32 1/1 7 4105.0 0 105.7 226.6 26Feb2009 20:53:40 33 1/1 7 4105.0 0 105.7 226.6 26Feb2009 20:53:53 34 1/1 7 4105.0 0 105.7 226.6 26Feb2009 20:54:06 35 1/1 7 4105.0 0 105.7 226.6 26Feb2009 20:54:20 36 1/1 7 4105.0 0 105.7 226.6 26Feb2009 20:55:46 >CLIENT TOP 26Feb2009 20:56:35 37 1/1 8 4000.0 0 105.7 226.6 26Feb2009 20:56:49 38 1/1 8 4000.0 0 105.7 226.6 26Feb2009 20:57:02 39 1/1 8 4000.0 0 105.7 226.6 26Feb2009 20:57:15 40 1/1 8 4000.0 0 105.7 226.6 26Feb2009 20:57:28 41 1/1 8 4000.0 0 105.7 226.6 26Feb2009 20:59:14 42 1/1 9 3935.0 0 105.7 226.6 26Feb2009 20:59:27 43 1/1 9 3935.0 0 105.7 226.6 26Feb2009 20:59:41 44 1/1 9 3935.0 0 105.7 226.6 26Feb2009 20:59:54 45 1/1 9 3935.0 0 105.7 226.6 26Feb2009 21:00:07 46 1/1 9 3935.0 0 105.7 226.6 26Feb2009 21:00:57 >CLIENT TOP 26Feb2009 21:02:20 47 1/1 10 3800.0 0 105.7 226.6 26Feb2009 21:02:34 48 1/1 10 3800.0 0 105.7 226.6 26Feb2009 21:02:47 49 1/1 10 3800.0 0 105.7 226.6 26Feb2009 21:03:00 50 1/1 10 3800.0 0 105.7 226.6 Dill BAKER RUNES VSProwess Acq 1.96 UNION OIL COMPANY OF C FORNIA 0 BLUE BUCK 6 -7 -9 Journal Date Time Record Src /Set Stk MD (ft) Fix SCX(ft) SCY(ft) 26Feb2009 21:03:13 51 1/1 10 3800.0 0 105.7 226.6 26Feb2009 21:05:24 >FILE 47 VOID NOISY 26Feb2009 21:06:24 52 1/1 11 3706.0 0 105.7 226.6 26Feb2009 21:06:37 53 1/1 11 3706.0 0 105.7 226.6 26Feb2009 21:06:50 54 1/1 11 3706.0 0 105.7 226.6 26Feb2009 21:07:03 55 1/1 11 3706.0 0 105.7 226.6 26Feb2009 21:07:17 56 1/1 11 3706.0 0 105.7 226.6 26Feb2009 21:07:33 57 1/1 11 3706.0 0 105.7 226.6 26Feb2009 21:08:33 >CLIENT TOP 26Feb2009 21:10:44 58 1/1 12 3600.0 0 105.7 226.6 26Feb2009 21:10:57 59 1/1 12 3600.0 0 105.7 226.6 26Feb2009 21:11:10 60 1/1 12 3600.0 0 105.7 226.6 26Feb2009 21:11:23 61 1/1 12 3600.0 0 105.7 226.6 26Feb2009 21:11:37 62 1/1 12 3600.0 0 105.7 226.6 26Feb2009 21:12:46 63 1/1 13 3599.0 0 105.7 226.6 26Feb2009 21:12:59 64 1/1 13 3599.0 0 105.7 226.6 26Feb2009 21:13:13 65 1/1 13 3599.0 0 105.7 226.6 26Feb2009 21:13:26 66 1/1 13 3599.0 0 105.7 226.6 26Feb2009 21:13:39 67 1/1 13 3599.0 0 105.7 226.6 26Feb2009 21:14:36 >CLIENT REQUEST TEST WITH ONE VIB. 26Feb2009 21:16:47 68 1/1 14 3428.0 0 105.7 226.6 26Feb2009 21:17:00 69 1/1 14 3428.0 0 105.7 226.6 26Feb2009 21:17:14 70 1/1 14 3428.0 0 105.7 226.6 26Feb2009 21:17:27 71 1/1 14 3428.0 0 105.7 226.6 26Feb2009 21:17:40 72 1/1 14 3428.0 0 105.7 226.6 26Feb2009 21:18:45 >CLIENT TOP 26Feb2009 21:20:22 73 1/1 15 3200.0 0 105.7 226.6 26Feb2009 21:20:35 74 1/1 15 3200.0 0 105.7 226.6 26Feb2009 21:20:48 75 1/1 15 3200.0 0 105.7 226.6 26Feb2009 21:21:02 76 1/1 15 3200.0 0 105.7 226.6 26Feb2009 21:21:15 77 1/1 15 3200.0 0 105.7 226.6 26Feb2009 21:23:20 78 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:23:33 79 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:23:47 80 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:24:00 81 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:24:13 82 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:24:31 83 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:24:46 84 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:25:04 85 1/1 16 3135.0 0 105.7 226.6 26Feb2009 21:25:43 >CLIENT TOP 26Feb2009 21:27:31 86 1/1 17 3000.0 0 105.7 226.6 26Feb2009 21:27:45 87 1/1 17 3000.0 0 105.7 226.6 26Feb2009 21:27:58 88 1/1 17 3000.0 0 105.7 226.6 26Feb2009 21:28:11 89 1/1 17 3000.0 0 105.7 226.6 26Feb2009 21:28:24 90 1/1 17 3000.0 0 105.7 226.6 26Feb2009 21:28:39 91 1/1 17 3000.0 0 105.7 226.6 26Feb2009 21:29:46 >FILE 86 VOID NOISY 26Feb2009 21:31:27 92 1/1 18 2800.0 0 105.7 226.6 26Feb2009 21:31:41 93 1/1 18 2800.0 0 105.7 226.6 26Feb2009 21:31:54 94 1/1 18 2800.0 0 105.7 226.6 26Feb2009 21:32:07 95 1/1 18 2800.0 0 105.7 226.6 26Feb2009 21:32:20 96 1/1 18 2800.0 0 105.7 226.6 26Feb2009 21:32:38 97 1/1 18 2800.0 0 105.7 226.6 26Feb2009 21:33:33 >FILE 94 VOID NOISY 26Feb2009 21:35:30 98 1/1 19 2620.0 0 105.7 226.6 26Feb2009 21:35:44 99 1/1 19 2620.0 0 105.7 226.6 26Feb2009 21:35:57 100 1/1 19 2620.0 0 105.7 226.6 26Feb2009 21:36:10 101 1/1 19 2620.0 0 105.7 226.6 26Feb2009 21:36:23 102 1/1 19 2620.0 0 105.7 226.6 Mill BUNS VSProwess Acq 1.96 UNION OIL COMPANY OF CORNIA 410 BLUE BUCK 6 -7 -9 Journal Date Time Record Src /Set Stk MD(ft) Fix SCX(ft) SCY(ft) 26Feb2009 21:36:58 103 1/1 19 2620.0 0 105.7 226.6 26Feb2009 21:37:50 >CLIENT TOP, FILE 99 VOID, NOISY 26Feb2009 21:39:47 104 1/1 20 2400.0 0 105.7 226.6 26Feb2009 21:40:00 105 1/1 20 2400.0 0 105.7 226.6 26Feb2009 21:40:13 106 1/1 20 2400.0 0 105.7 226.6 26Feb2009 21:40:27 107 1/1 20 2400.0 0 105.7 226.6 26Feb2009 21:40:40 108 1/1 20 2400.0 0 105.7 226.6 26Feb2009 21:41:28 109 1/1 21 2400.0 0 105.7 226.6 26Feb2009 21:41:44 110 1/1 21 2400.0 0 105.7 226.6 26Feb2009 21:45:59 111 1/1 22 2170.0 0 105.7 226.6 26Feb2009 21:46:12 112 1/1 22 2170.0 0 105.7 226.6 26Feb2009 21:46:25 113 1/1 22 2170.0 0 105.7 226.6 26Feb2009 21:46:39 114 1/1 22 2170.0 0 105.7 226.6 26Feb2009 21:46:52 115 1/1 22 2170.0 0 105.7 226.6 26Feb2009 21:51:16 116 1/1 23 2000.0 0 105.7 226.6 26Feb2009 21:51:29 117 1/1 23 2000.0 0 105.7 226.6 26Feb2009 21:51:43 118 1/1 23 2000.0 0 105.7 226.6 26Feb2009 21:51:56 119 1/1 23 2000.0 0 105.7 226.6 26Feb2009 21:52:09 120 1/1 23 2000.0 0 105.7 226.6 26Feb2009 21:56:50 121 1/1 24 1955.0 0 105.7 226.6 26Feb2009 21:57:05 122 1/1 24 1955.0 0 105.7 226.6 26Feb2009 21:57:20 123 1/1 24 1955.0 0 105.7 226.6 26Feb2009 21:58:02 124 1/1 24 1955.0 0 105.7 226.6 26Feb2009 21:58:16 125 1/1 24 1955.0 0 105.7 226.6 26Feb2009 21:58:33 126 1/1 24 1955.0 0 105.7 226.6 26Feb2009 21:58:50 127 1/1 24 1955.0 0 105.7 226.6 26Feb2009 22:00:33 >CLIENT TOP. FILES 123 AND 125 NOISY. 26Feb2009 22:01:39 128 1/1 25 1800.0 0 105.7 226.6 26Feb2009 22:01:52 129 1/1 25 1800.0 0 105.7 226.6 26Feb2009 22:02:05 130 1/1 25 1800.0 0 105.7 226.6 26Feb2009 22:02:19 131 1/1 25 1800.0 0 105.7 226.6 26Feb2009 22:02:32 132 1/1 25 1800.0 0 105.7 226.6 26Feb2009 22:03:20 >INSIDE CASING 26Feb2009 22:05:12 133 1/1 26 1600.0 0 105.7 226.6 26Feb2009 22:05:25 134 1/1 26 1600.0 0 105.7 226.6 26Feb2009 22:05:38 135 1/1 26 1600.0 0 105.7 226.6 26Feb2009 22:05:52 136 1/1 26 1600.0 0 105.7 226.6 26Feb2009 22:06:05 137 1/1 26 1600.0 0 105.7 226.6 26Feb2009 22:09:03 138 1/1 27 1455.0 0 105.7 226.6 26Feb2009 22:09:16 139 1/1 27 1455.0 0 105.7 226.6 26Feb2009 22:09:29 140 1/1 27 1455.0 0 105.7 226.6 26Feb2009 22:09:42 141 1/1 27 1455.0 0 105.7 226.6 26Feb2009 22:09:56 142 1/1 27 1455.0 0 105.7 226.6 26Feb2009 22:11:01 >PERMAFROST SHOT MATCHED PREVIOUS SHOT ON RUN IN. 26Feb2009 22:11:44 143 1/1 28 1400.0 0 105.7 226.6 26Feb2009 22:11:58 144 1/1 28 1400.0 0 105.7 226.6 26Feb2009 22:12:11 145 1/1 28 1400.0 0 105.7 226.6 26Feb2009 22:12:24 146 1/1 28 1400.0 0 105.7 226.6 26Feb2009 22:12:39 147 1/1 28 1400.0 0 105.7 226.6 26Feb2009 22:15:26 148 ' 1/1 29 1200.0 0 105.7 226.6 26Feb2009 22:15:39 149 1/1 29 1200.0 0 105.7 226.6 26Feb2009 22:15:52 150 1/1 29 1200.0 0 105.7 226.6 26Feb2009 22:16:07 151 1/1 29 1200.0 0 105.7 226.6 26Feb2009 22:16:20 152 1/1 29 1200.0 0 105.7 226.6 26Feb2009 22:20:32 153 1/1 30 1000.0 0 105.7 226.6 26Feb2009 22:20:45 154 1/1 30 1000.0 0 105.7 226.6 26Feb2009 22:20:58 155 1/1 30 1000.0 0 105.7 226.6 26Feb2009 22:21:12 156 1/1 30 1000.0 0 105.7 226.6 I 26Feb2009 22:21:25 157 1/1 30 1000.0 0 105.7 226.6 EMI um V SProwess Acq 1.96 1 UNION OIL COMPANY OF AlIFORNIA 4 110 BLUE BUCK 6 -7 -9 Journal Date Time Record Src /Set Stk MD (ft) Fix SCX(ft) SCY(ft) 26Feb2009 22:24:07 158 1/1 31 800.0 0 105.7 226.6 26Feb2009 22:24:20 159 1/1 31 800.0 0 105.7 226.6 26Feb2009 22:24:34 160 1/1 31 800.0 0 105.7 226.6 26Feb2009 22:24:47 161 1/1 31 800.0 0 105.7 226.6 26Feb2009 22:25:00 162 1/1 31 800.0 0 105.7 226.6 26Feb2009 22:27:50 163 1/1 32 600.0 0 105.7 226.6 26Feb2009 22:28:03 164 1/1 32 600.0 0 105.7 226.6 26Feb2009 22:28:16 165 1/1 32 600.0 0 105.7 226.6 26Feb2009 22:28:29 166 1/1 32 600.0 0 105.7 226.6 26Feb2009 22:28:43 167 1/1 32 600.0 0 105.7 226.6 26Feb2009 22:31:19 168 1/1 33 421.0 0 105.7 226.6 26Feb2009 22:31:32 169 1/1 33 421.0 0 105.7 226.6 26Feb2009 22:31:45 170 1/1 33 421.0 0 105.7 226.6 26Feb2009 22:31:59 171 1/1 33 421.0 0 105.7 226.6 26Feb2009 22:32:12 172 1/1 33 421.0 0 105.7 226.6 26Feb2009 22:35:28 >MSL SHOT 26Feb2009 22:35:37 173 1/1 34 200.0 0 105.7 226.6 26Feb2009 22:35:51 174 1/1 34 200.0 0 105.7 226.6 26Feb2009 22:36:04 175 1/1 34 200.0 0 105.7 226.6 26Feb2009 22:36:17 176 1/1 34 200.0 0 105.7 226.6 26Feb2009 22:36:30 177 1/1 34 200.0 0 105.7 226.6 26Feb2009 22:38:47 >END OF JOB POOH 26Feb2009 23:02:10 >23:00 RIG TO CLIENT. TOOL RE ZERO AT +1.7' MN Was VSProwess Acq 1.96 C. XI . I c r>11 _..r d UH ZCO Oo CD ti n D o (O m sy uz r .. Oh 5' c '61 cr 4 4 1 , r+ . O r r > * CCI CC) O D O � 1t 0 M Ifh CD 1 ± IT 3 ' I -t1n11f 111/111U11 VIP Weatherford LABORATORIES Rotary Sidewall Core Photography for Chevron North America Exploration and Production Union Oil Company of California Bluebuck 6 -7 -9 Well North Slope Borough Alaska, USA Omni File No. HH -42839 Chevron North America HH -42839 Exploration and Production it om an Weathertord Union Oil Company y of California A B o A o F -_ Bluebuck 6 -7 -9 Well North Slope Borough Alaska, USA Rotary Sidewall Core Inclined Veiw Photography t. , Sample: 1 - 1 R Sample: 1 -2R Depth: 1962.50 feet Depth: 1964.00 feet Sample: 1 -3R Sample: 1 - Depth: 1992.00 feet Depth: 2020.00 feet .. 2 " " 3 .. 4 .. 5 .. 6 " , 1111k 1." Chevron North America Exploration and Produaton Weatherford Union Oil Company of California Sluebuck 6-7 -9 Well LABORATORIES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1 -1 R Visible Light Depth: 1962.50 feet Ultraviolet Light 3X A A e, *}. Sample No.: 1 -2R Visible Light Depth: 1964,00 feet Ultraviolet Light 3x e ... C111 117 • • ! 1j x ` •, t t.0_ L. 2.0 • t:'f . 1141Ir Chevron North America Exploration and i"roducit.n HH Union Oil Company of Californi Bluebuck 6 -7 -9 Well LABORATOR ES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: I -3R Visible Light Depth: 1992.00 feet Ultraviolet Light cm m R P e a y ' 1 t 05 u r - 7' e r."s 1.0 Sample No.: 1 -4R Visible Light Depth: 2020.00 feet Ultraviolet Light 3X `: cm m lE Y q. } •,• ` ' • • 41.5 - a r•- � �• . 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Ny weathai. at Chevron North America Exploration and Producifon H -4283 Union Oil Company of California Bluebuck 6 -7 -9 Well LABORATORIES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1-5R Visible Light Depth: 2173.00 feet Ultraviolet Light 3X cm in 4 `L T' y "` 1- 4 ♦ iii ' :. £ • Le os E w Sample No.: 1 -6R Visible Light Depth: 2176.00 feet Ultraviolet Light 3X CUR MR 2.0 _ 44, Chevron North America Exploration and P�roduol on ®42839 union Oil Compa of Californ Weatherford Bluebuck 6-7-9 well LABORATORIES 'No Slope Borough Alaska, USA Rotary Sidew Core Photography Sample No.: 1 -7R Visible Light Depth o 2186.00 feet Ultraviolet Light 3x Lm m • vo to Le 4 r l r *. te Sample No.: 1-89 Visible Light Depth: 2190.00 feet Ultraviolet Light 3K Oro 'fl ifa { as Le 1 ,k 11 „9 ..S ,.£ .,Z e.L 00 :ytdaa 1a9J 00 LZZ :uifdaa clE l - L :aldwps d l l L aidwps 4 00.L0ZZ :q daa 4aa 00 00ZZ :U4dea d0 L l : aIdwoS d6 L : aidwos AudoJ6oioyd Mien pauiloui aio3 IlDMapis AJD,od dsn `D>ISDId ubnoao8 adols uuaoN 11 6 >iongan(8 srao ±buoeb, o!uaojipp Jo Auodwop dip uo!un paoJJa uoilonpoJd pup uoJDJoJdx3 6C8ZV oouew■ glioN u01n9140 Chew North A�►aeica Exploration and IPro�9ucor Wea th e rford Union Oil Comp arry of �atifofm;ia iBueb w v +� s North Slope ck 6 7 9 Borough Alaska, USA Rotary S Core Photography Sample No.: I -9R Visible Light Depth: 2200.00 feet Ultraviolet Light cm m 3K 1 • • ze Ill i Sample No.: 1 -1 OR Visible Light Depth: 2207.00 feet Ultraviolet Light sK ax m `. fit P d 9a 1.5 • ' wy us + ,,'"S, ry r 4 1 . AA r M '' v .. 4 ' . ' t . p 4. .. *, ' ii 11 Chevron North America Exploration and Produoii #on !'H -428 9 Exitherfird Union Oil Company of California lBluebuck 6-7-9 Well LABORATORIES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No. 1 -1 I R Visible Light Depth: 221 6.00 feet Ultraviolet Light AA • �" Zo Sample No.: 1 -12R Visible Light Depth: 2222.00 feet Ultraviolet Light on on AAI_ is AA ..9 ..S ..b ..£ ..Z ,. t • 4 00'9C9Z :1.4daa L44dea d9 l -1 :eldwas dg 1-1 : eIdwos 4 OO SZ9Z :u4dao 00'L 1_9Z u4dao dr 1 L .aldwos 1 L ,aldwos /ydoJ5o4ogd MiaA peuipui a.io3 //DMapis / b:4°d vsn ' D >i DIV q noiog adolS L iON IIaM 6 >{onganlg 9 3 1 8 0 Ld t:l 0 8 d- oluaoJIIo3 10 AuodwoD I10 uoiun PJOJJatJieaM uoqonpoJd pun uo1pioldx3 6�8Z� - HH oolaawy uolnayo Chevron North America Exploration and Produciton HH -42839 Union Oil Company of California Weatherford Bluebuck 6 -7 -9 Well L A B O R A T O R I E S North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1 -13R Visible Light Depth: 2617.00 feet Ultraviolet Light 3X an m i Sample No.: 1 -14R Visible Light Depth: 2623.00 feet Ultraviolet Light 3X an m u— _ Is Chevron North America Exploration and Produciton HH -42839 Union Oil Company of California Weatherford Bluebuck 6 -7 -9 Well LABORATORIES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1 -15R Visible Light Depth: 2630.00 feet Ultraviolet Light 3X Cap in 444 t as 1A � :; A+ yy f�fL �.'� °11 ��{�sa�R*y �'-�` L%Y [ a, Y, •• j f t ^..am �lpi .7- 2.0 11 Sample No.: 1 -16R Visible Light Depth: 2636.00 feet Ultraviolet Light 3X cat it , / 1A '3 2.0 • 11 1 00•17 1881 00' L99Z :y�daa el0Z l :aIdwos X16 L L :wdWDS • aa1 00'9t79Z :LUdaa /3eJ 00' Lt9Z ,u }daa �1S l - L :eidwos 21L L L ;aidps AydoJ600gd M(aA pau//ou/ eioo //oMaps AJDIod dsn `D)iSDIV t bnoao8 ado's LUJoN Ham 6 - 9 >lan9ani8 s311:1o1baoee1 pluioJlioD Jo AupdOJ dip uolun pa0�aau �a uolLonpoad pup uoltpaoldx3 6SSZV - HH o ewv -WON uoanaLo Chevron North America Exploration and Produciton HH-42839 Weatherford Union Oil Company of California Bluebuck 6-7-9 Well LABORATORIES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1 -17R Visible Light Depth: 2641.00 feet Ultraviolet Light cm 18 1 ,.. Sample No.: 1 -1 8R Visible Light Depth: 2646.00 feet Ultraviolet Light 3X cm rn t H d:8 Chevron North Ameruca Exploration and Produciton 1t 42839 Union Oil Company of California p Y Weatherlord Bluebuck 6 -7 -9 Well L A B O R A T O R I E S North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1 -19R Visible Light Depth: 2681.00 feet Ultraviolet, Light < R SK Am m JA ik ci y.J I t 4 0r . +�x�' 1 to _ r ., d i h 3 -� • vt va L * s ' ♦ 101 Sample No.: 1 -20R Visible Light Depth: 3724.00 feet Ultraviolet Light Am $11 9.5 • 1s Chevron North America HH -42839 Exploration and Production Weatherford Union Oil Company of California LABORATORIES Bluebuck 6 -7 -9 Well North Slope Borough Alaska. USA Rotary Sidewall Core Inclined Veiw Photography :x- sa t .. 4o ' :, Sample: 1 -21 R Sample: 1 -22R Depth: 3733.00 feet Depth: 3764.00 feet ; 7 } :L ,Hxl ACC i *i� # I j 4 ' S X Sample: 1 -23R Sample: 1 -24R Depth: 3768.00 feet Depth: 4014.00 feet , 1- 2" 3 .. 4 .. 5 " 6 11 f t Chevron North America Exploration and Produciton H -4263 Union Oil Company of California Wean*, Ord Bluebuck 6-7-9 Well LABORATORIES North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No..: 1-21R Visible Light Depth: 3733.00 feet Ultraviolet Light Ui L0 _ t5 Sample No.: 1 -22R Visible Light Depth: 3764.00 feet Ultraviolet Light 3X am al 65 • 44' Chevron North America Exploration and Produciton NH -42839 Union Oil Company of California Weatherford Bluebuck 6 -7 -9 Well L A B O R A T O R I E S North Slope Borough Alaska, USA Rotary Sidewall Core Photography Sample No.: 1 -23R Visible Light Depth: 3768.00 feet Ultraviolet Light Cm m T ■ to e.5 2.0 r 4 . 1.0 Sample No.: 1 -24R Visible Light Depth: 4014.00 feet Ultraviolet Light 3X fi Z • 1.e 0.5 E, 2.e ie Chevron North America HH -42839 Exploration and Production Weatherford Union Oil Company of California LABORATORIES Bluebuck 6 -7 -9 Well North Slope Borough Alaska. USA Rotary Sidewall Core Inclined Veiw Photography Sample: 1 -25R Sample: 1 -26R Depth: 4110.00 feet Depth: 4112.00 feet • 1 " 2" 311 4" 511 6" IV Chevron North Arnerlcaxp'loration and 'l�ro�l�c�on lH -42339 Union Oil Company of Cal Weatherford Bluebuck 6 -7 - 9 Well L A B O �� o�� North Slope Borough Alaska, USA Rotary Sideu�rall Core Photography Samp No.: 1 -25R Visible Light Depth : 4110.00 fee ultraviolet Light 3K cm in r KfN,. G 41 , � j y .c ' r . IA_. F ' y 1 V l�)1 `mow 1S Y : Y } t 4 '•� J I 1118 Sample No.: 1 - 26R Visible Light Depth: 4112,00 feet Ultraviolet Light 3x K a r r e---c u ` � { .s c r � 3 1.5 r . . t �! 4T t Y R lh� �#'yf S f y . C • .1 U a � ( r Y ) Y '� l i YZ • • • • • • • • CORE ANALYSIS REPORT • • • Chevron North America E & P • Union Oil Company of California Bluebuck 6 -7 -9 Well • White Hills Field North Slope Burrough, Alaska • • • • • • • • • • • • • • • • • Weatherford • • LABORATORIES • • • • • • • • :, ,, a • ., qt) • \ • • • • • MM • fl s.3 MNI • LABORATORIES Laboratories • • • CORE ANALYSIS REPORT • • • Chevron North America E & P • Union Oil Company of California Bluebuck 6 -7 -9 Well • White Hills Field North Slope Burrough, Alaska • • • • FINAL REPORT • Rotary Sidewall Core Routine Core Analysis • • • Performed For: • Chevron North America Exploration and Production . 1111 South Wilcrest Drive Houston, Texas • 77042 • Report Issued: • 3 June 2009 • • • Performed by: • Weatherford Laboratories • OMNI Laboratories - Houston 8845 Fallbrook Drive • Houston, Texas 77064 • • • H H -42839 • • • • • The interpretations or opinions expressed represent the best judgment of Weatherford Laboratories and assumes no responsibility and makes no warranty • or representations, as to the productivity, proper operation, or profitableness of any oil, gas or any other mineral well. These analyses, opinions or interpretations are based on observations and materials supplied by the client for whom this report is made. • • • • • • Weatherford ! MNI . .1 • j AFOR}7TOFtES Laboratories • • 3 June 2009 • David B. Buthman • Chevron North America Exploration and Production • 1111 South Wilcrest Drive Houston, Texas • 77042 • Subject: Rotary Sidewall Core Routine Core Analysis Report • Union Oil Company of California Bluebuck 6 -7 -9 Well • White Hills Field • North Slope Burrough, Alaska • OMNI File: HH -42839 • Dear Mr. Buthman: • Weatherford Laboratories, OMNI Laboratories — Houston, Texas is pleased to present the final • report for routine core analysis, performed on Twenty six (26) rotary sidewall core samples • recovered from the subject well. Preliminary data was provided to Chevron North America Exploration and Production as available throughout the course of the study and posted to the • OMNI secure website. • OMNI Laboratories appreciates this opportunity to have been of service to Chevron North • America Exploration and Production. Please contact us at (832) 237 — 4000 if you should have • any questions regarding this report or if we may be of any further assistance. • Very truly yours, • • • • • Paul Lincoln Routine Core Analysis Manager • Weatherford Laboratories • OMNI Laboratories - Houston • 8845 Fallbrook Drive • Houston, Texas 77064 • 4 copies/ 4 CDs: David B. Buthman — Chevron North America Exploration and Production • 1 copy/ 1 CD: John Johns — Total Exploration & Production • • • • • The interpretations or opinions expressed represent the best judgment of Weatherford Laboratories and assumes no responsibility and makes no warranty • or representations, as to the productivity, proper operation, or profitableness of any oil, gas or any other mineral well. These analyses, opinions or interpretations are based on observations and materials supplied by the client for whom this report is made. • • • • • • Weatherford M I , • 1. A Et C= i=i F ? C? F, 't E ;i �.s, ,.:. Laboratories • Laboratory Procedures • Rotary Sidewall Core • Routine Core Analysis • • Sample Inventory • Twenty six (26) rotary sidewall core samples were received and inventoried at Weatherford, OMNI Laboratories — Houston, Texas facility on 2 March 2009. The inventory was prepared and • sent to David B. Buthman of Chevron North America Exploration and Production. The rotary samples were visually examined and end trims were taken from each sample. The rotary sample • end trims were photographed under white light sources. End trims were sent to Petrology and • results will be presented under a separate cover. Preliminary data were provided as available throughout the course of the study and posted to the OMNI secure web site. • Extraction, Cleaning and Drying Methods • The samples were subjected to Dean Stark toluene extraction to determine in -situ fluid saturations. The samples were then extracted with chloroform for oil saturations. The samples • were dried in a convection oven at 140 degrees Fahrenheit. The samples were further extracted • of hydrocarbons and leached of salts using a methanol azeotrope. The samples were dried to a constant weight in a convection oven at 140 degrees Fahrenheit. • Routine Properties Measurement Methods • Grain volume for each sample was measured by helium injection using the Boyle's Law method. • The equipment was calibrated with known volume steel billets. Berea, titanium and lead standards were measured before each run. The samples were kept in a desiccator until ready for • grain volume measurement. The Berea check plug was measured at the beginning and end of • each measurement run to ensure continued equipment calibration. The measurements for every fifth sample were repeated. Grain densities (gm /cc) were calculated using the dry sample weight • (gm) and grain volume data (cc) using the formula: GD = DW • GV • where: GD = Grain Density, grams /cc DW = Dry weight, grams • GV = Grain Volume, cc • Boyle's Law helium pore volume and air permeability was determined at the designated Net • Confining Stress (NCS) of 1000 and 3000 psi using the Frank Jones Steady -State • Porosimeter /Permeameter. Hydrostatic stress was applied to all stressed measurements. A calculated Klinkenberg value was also provided for each sample. Porosity was calculated using • the following equation: • 0 = (PV) /(GV +PV)* 100 • where: o = Porosity, percent • PV = Pore Volume, cc • GV = Helium Grain Volume, cc • • The interpretations or opinions expressed represent the best judgment of Weatherford Laboratories and assumes no responsibility and makes no warranty • or representations, as to the productivity, proper operation, or profitableness of any oil, gas or any other mineral well. These analyses, opinions or interpretations are based on observations and materials supplied by the client for whom this report is made. • • • ••••••••••••• •••••••••••••••••••• SUMMARY OF ROTARY CORE ANALYSES RESULTS Convection Dried at 140 °F Chevron North America Exploration and Production North Slope Burrough, Alaska Union Oil Company of California Bluebuck 6 -7 -9 Well File: HH -42839 White Hills Field Date: 5-5 -09 Permeability, Grain Fluid Sample millidarcys Porosity, Density, Saturations, Run Sample Depth, to Air Klinkenber percent gm /cc percent Lithological Number Number feet _ 1000 psi 3000 psi Repeat , 1000 psi 1 3000 psi I Repeat Ambient 11000 ps43000 psis Repeat _ Initial 1 Repeat Water 1 Oil 1 Total Descriptions 1 1-1R 1962.50 + 36.9 33.9 33.7 2.66 2.65 60.6 4.4 65.0 Ss gry mg lit mic friable frac 1 1 -2R 1964.00 + 37.4 33.5 2.64 94.5 4.7 99.2 Ss gry mg lit mic friable frac 1 1-4R 2020.00 2650. 2060. 2560. 1980. 35.3 33.5 2.66 93.0 4.5 97.5 Ss gry fg -mg lit mic friable 1 1 -5R 2173.00 2150. 1450. 2070. 1390. 37.7 34.6 2.70 89.9 9.4 99.2 Ss gry fg -mg lit mic cmt 1 1-6R 2176.00 1640. 1410. 1570. 1350. 35.4 33.9 2.70 65.4 2.3 67.7 Ss gry fg -mg lit mic cmt 1 1 -7R 2186.00 886. 770. 756. 840. 728. 714. 34.1 32.8 32.7 2.71 2.71 93.8 3.1 96.8 Ss gry vfg lit mic cmt 1 1-8R 2190.00 683. 604. 644. 568. 34.0 32.7 2.71 85.0 3.7 88.6 Ss gry vfg lit mic cmt 1 1 -10R 2207.00 722. 622. 681. 585. 34.1 32.8 2.69 96.3 3.5 99.8 Ss gry vfg lit mic cmt 1 1-11R 2216.00 688. 577. 649. 542. 34.4 33.1 2.75 88.6 5.0 93.7 Ss gry vfg lit mic cmt 1 1 -12R 2222.00 386. 337. 359. 312. 33.5 32.2 2.70 92.9 3.3 96.2 Ss vfg -fg lit mic cmt 1 1 -13R 2617.00 + 29.7 28.2 2.71 61.6 3.9 65.5 Ss gry fg -mg lit mic cmt 1 1 -15R 2630.00 1560. 1370. 1490. 1310. 35.0 33.4 2.68 93.2 2.8 96.0 Ss gry fg -mg lit mic cmt 1 1 -16R 2636.00 118. 92.7 90.1 105. 81.9 79.6 30.6 29.1 29.0 2.75 2.75 76.2 3.5 79.8 Ss gry vfg cly rich lit mic cmt 1 1 -17R 2641.00 365. 320. 339. 296. 31.9 30.7 2.71 93.1 5.7 98.8 Ss gry vfg cly rich lit mic cmt 1 1 -18R 2646.00 357. 314. 331. 290. 32.0 30.7 2.71 92.3 5.2 97.4 Ss gry vfg dy rich lit mic cmt 1 1 -19R 2681.00 172. 136. 155. 122. 30.7 29.4 2.70 91.5 5.0 96.5 Ss gry vfg cly rich lit mic cmt 1 1 -20R 3724.00 297. 274. 274. 252. 31.2 30.1 2.68 52.5 3.3 55.9 Ss gry vfg cly rich lit mic cmt 1 1-21R 3733.00 97.3 72.9 85.9 63.5 31.2 30.0 2.69 32.8 9.9 42.7 Ss gry fg lit mic cmt 1 1 -22R 3764.00 47.8 40.2 40.0 41.0 34.2 34.0 30.3 28.7 28.4 2.69 2.68 74.4 1.9 76.3 Ss gry fg lit mic cmt 1 1 -23R 3768.00 99.7 88.4 88.4 78.0 30.8 29.6 2.69 66.7 0.7 67.5 Ss gry fg lit mic cmt 1 1 -25R 4110.00 + 27.9 27.0 2.66 85.8 2.4 88.2 Ss gry vfg ciy rich lit mic cmt frac 1 1 -26R 4112.00 1.58 1.39 1.17 1.03 25.4 25.3 25.0 2.67 78.7 0.4 79.1 Ss gry vfg dy rich lit mic cmt Average values: 718. 586. 295. 682. 555. 276. 25.4 32.7 31.1 31.0 2.69 2.70 79.9 4.0 84.0 + Indicates the sample is unsuitable for this type of measurement '••••••••••••• •••••••••• NY Weatherford C MINI PERMEABILITY AND FLUID SATURATIONS VERSUS POROSITY Convection Dried at 140 °F Chevron North America Exploration and Production North Slope Burrough, Alaska Union Oil Company of California Bluebuck 6 -7 -9 Well File: NH-42839 White Hills Field Date: 5 -5 -09 100000 100 • 1000 psi • Water • • 3000 psi 1 I •Oil _ • ' .•j I • • 10000 • • 80 • • , • • m U 1000 �- • • CO O • .° • a r . E •• c a) • 2 • 0 100 . • a P • O 7 . as = 40 E is d 10 a • 5 U- ♦ 20 1 / y = 1E-06e 1 1 • y = 1E-07e° 6916X — ___ • • • • • DS% 0.1 - 0 • • 20 24 28 32 36 40 20 24 28 32 36 40 Porosity, percent Porosity at 3000 psi NCS, percent ••••••••••••• •••••• ••••••••••••••••••••••••• Ate Weatherford OP NI PERMEABILITY AND POROSITY CROSSPLOTS Convection Dried at 140 °F Chevron North America Exploration and Production North Slope Burrough, Alaska Union Oil Company of California Bluebuck 6 -7 -9 Well File: HH -42839 White Hills Field Date: 5 -5 -09 10000 isem.■■.■■ =1110••uuEME 40 � I I y = 0.8799x I ly = 0.951x1 ■ 1000 36 a ui U / 411 Co U a X 32 a U o z °0 100 co ra = �, o 0 Q co o -628 ". p -13 co o E a a. 1 1 1 24 1 20 1 10 100 1000 10000 20 24 28 32 36 40 I Permeability to Air at 1000 psi NCS, millidarcys Porosity at 1000 psi NCS, percent t_ ••••••••••••• ••••• •••••••••••••••••••••••••• Ile Weatherford OMN I tA Fir,,,q ?car:f Es REPEAT PERMEABILITY AND POROSITY CROSSPLOTS Convection Dried at 140 °F Chevron North America Exploration and Production North Slope Burrough, Alaska Union Oil Company of California Bluebuck 6 -7 -9 Well File: HH -42839 White Hills Field Date: 5 -5 -09 10000 40 — y = 0.9962x 0 9973 A y= 0.9948x in c'F3 FA _°-1000 36 E a) U ui Q? U a Z u)- o z 32 o 100 0 to I II L O - Q co o to P '( 28 — O ca O a) a.. E a) a) a 10 A l a) 24 1 20 1 10 100 1000 10000 20 24 28 32 36 40 Initial Permeability to Air at 3000 psi NCS, millidarcys Initial Porosity at 3000 psi NCS, percent r • • • • • • Chevron • • • 101011 • • 410 • • • • • • • Bluebuck 6 - - • • • Chevron's Lab • • Scanning Electron Microphotographs • • • Aug. 25, 2009 • • • • a • • • • • • • • � w 7 • • • 1 • • SCANNING ELECTRON MICROPHOTOGRAPHS RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • • PLATE 26, I - 26R DEPTH: 4112.0 Ft. 11„x; • • °} _ t • ^ '!► • ` y \ y`, ,i- yw w w . r • 4, Y 1111 + .. ,, • ' .¼ ,. ♦ . ' • 441 # � a • t 4 ' # A. 'f,, Acc. Spot Magn Det WD 200 µm .*' • ' ° 20 0 kV 5 0 100x SE 10.3 Bluebuck 6 -7 -9, AK- 1 -26R, 4112 0' • Plate 26A, 100x: Intergranular pores (IG) are rare and mostly occluded. Compaction of ductile lithic grains • and mica has reduced primary porosity in this feldspathic sandstone. Authigenic clay precipitates, primarily illite, mixed -la er illite - smectite, and kaolinite Kao), coat :rains and fill s ores. • • . y Illitic Ai; N Clay , "'" , et 7 -. --,:� • '.. + ti. it 4 „. 4 • it • r y r . +n. � � #�,. s • a i r * . , A , ' r te' r • i • , V` • P filling Kaolinite + _ ir A. _: c_V Spot Magn Det WD sounimila 50 um • 20.0 kV 5.0 65 SE 10.2 Bluebuck . -7 -9. AK, 1 -26R. 4112. • Plate 26B, 650x: Authigenic clay precipitates and microcrystalline dolomite/Fe- dolomite and siderite are • the primary cements noted in this sandstone. • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska PLATE 25, 1 -25R DEPTH: 4010.0 Ft. • 4 • ' ! * * *, r • . . �,. r .. 4. - • • • . z . } Acc.V Spot Magn Det WD ' 200 pm • 2.0 0 kV 5 0 100x SF 10 2 Bluebuck 6 -7 -9, AK. 1 -25R, 4110.0' • • Plate 25A, 100x: Intergranular pores (IG) are small and range from partially to mostly occluded. Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays • coat grains and fill pores. Secondary porosity (SP), due to the dissolution of feldspar grains, adds to the • overall 'orosit of this felds1athic sandstone. s * '.t ! ' . x ! ; * ° ' ., _ - SP t ID S • 4Adt * • t " , � . ♦ , yam • . ' . 7 y� v • y , +. a tffi t Kao - ' 4 . - „• - �` 1 1. • Y , . -td, _ 1 �1 .• i x • t " ' , ` • the • Micro crystalline 0 11 1 # , . , 4 , P y • . Fe- Dolomite - " �- , 0 • ° . '' - . • 'A�.c V ` ;put M+uln Det WD I I 20 pm " • *. 20 0 kV ') 0 ;',00x SE 10.0 Bluebuck 6 -7 -9, AK 1 25R, 4110.0' • Plate 2513, 800x: Illite, mixed -layer illite- smectite, and kaolinite (Kao) and trace amounts of • microcrystalline dolomite/Fe- dolomite are the primary cements noted in this sandstone. The smectit component in this sandstone should be taken into consideration when choosing completion fluids. • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 24, 1 -24R DEPTH: 4014.0 Ft. • • • • • • • • No Image Available • • • • • • • • • Plate 24A, x: • • • • • • • • • • No Image Available • • • • • • • • Plate 24B, x: • • • • I • • SCANNING ELECTRON MICROPHOTOGRAPHS RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 23, 1 -23R DEPTH: 3768.0 Ft. /`+s w • r• . 1' ' \ k - - ' " , 0, • • v • ' 4 ,... , - . „it. . 1 • is m. )1, . ‘s, ii 40 . ... / 04 1- •,, „ -,, , f . , 7 4 ' ' 4 " - �:� ., , L or • • 1 • . , . . • 0-, tfr\o- ,.417! .., Al fir ` i y . ,. i ii. r ' • . cc. Spot Magn Det WD 200 pm . • 20 0 kV 5 0 100x SE 10 3 Bluebuck 6 -7 -9. AK, 1 -23R. 3768 0' " • , -. F ... • ' - • I.. 1. •. -. ME-." ..w . P • late 23A, 100x: Intergranular (IG) range from partially to mostly occluded. Compaction has reduced primary porosity. Illitic clays coat grains and fill pores in this feldspathic sandstone. Secondary • • orosi SP) has been created throw h the dissolution of unstable framework !rains I rimaril felds • ars . - *: • j 4'' - a. ,p ;, • 4- � . . Grain- coating • A i , , 411 . , i. . t i •.F 0 -' MLIS Clay • ( V i !:ai ;+*' t '+. „,.11° 1 - 1 s tir "t • • • I, x r • r$ • x Acc.V Spot Magn Dot Wt) I 50 pm -, 20 0 kV 5.0 650x SE 10 2 Bluebuck 6 -7 -9, AK, 1 -23R. 3 /68.0' • Plate 23B, 650x: Authigenic clay precipitates (illite, mixed -layer illite - smectite (MLIS), kaolinite), • moderately developed feldspar overgrowths (FO), and microcrystalline dolomite/Fe- dolomite and siderite • are the primary cements noted in this sandstone. Intercrystalline microporosity (m) adds to the overall porosity of this sandstone. The smectitic component in this sandstone should be taken into consideration • when choosing completion fluids. • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 22, 1 -22R DEPTH: 3764.0 Ft. - • t . ..... Q � r, • s ' s IG -y • -� .. �. - • � s i r • x , I r y w .. a r • _ 4 • * f; • I - - . • SP i • , • Acc.V Spot Magn Det WD I 200 lira . , • 20 0 kV 5 0 100x SE 10 1 Bluebuck 6 -7 -9, AK 1 -22R 3764 0' • Plate 22A, 100x: Intergranular pores (IG) are small and range from partially to mostly occluded. • Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays • coat grains and fill pores in this feldspathic sandstone. Secondary porosity (SP), due to the dissolution of unstable felds . ar :rains adds to the overall 'orosit of this felds ' athic sandstone. • ,mt ; � *' c*- ''4.44- � Grain- coating • �_ ' -. = MLIS Clay R ti k • • �' . • r • FO 1 • s 4 • - K _ \ , , • ft • cc.V Spot Magn Dot WD I I 50 urn 20 0 kV 5.0 650x SE 10.1 Bluebuck 6 -7 -9. AK, 1 -22R_ 3764.0' ....arms ''. _ • Plate 22B, 650x: Authigenic clay precipitates (illite, mixed -layer illite - smectite (MLIS), kaolinite), moderately developed feldspar overgrowths (FO), and microcrystalline dolomite/Fe- dolomite and siderite • are the primary cements noted in this sandstone. The smectitic component in this sandstone should be taken • into consideration when choosing completion fluids. • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 21, 1-21R DEPTH: 3733.0 Ft. • • A►. 1 f • f ' - .. - ' 4 - : * 1(414 r , 4 • • j 't S Acc V Spot Magn Det WD 200 µm , ik; 20 0 kV 5 0 100x SE 10.2 Bluebuck 6 -7 -9, AK. 1-21R, 3733.0' • Plate 21A, 100x: Intergranular pores (IG) are small and range from partially to mostly occluded. • Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays • coat :rains and fill sores in this felds.athic sandstone. j . • '' '` ' FO si. Grain- coating ' ', 0 , ` • Illitic Clay *- ', ' - f 4-,,, i . . • • 111 i 5 s . k • ^ 3 ' • . • q„, . • ' „ ,. .. z • -- r.1 QC - jµ M 7 `' • _ • Acc.V Spot Magn Det WD I 50 um • 20 0 kV 5 0 500x SE 10.1 Bluebuck 6 -7 -9, AK, 1 21R 3733 0' - • Plate 21B, 500x: Authigenic clay precipitates ( illite, mixed -layer illite - smectite, kaolinite), poorly • developed quartz overgrowths (QO), moderately developed feldspar overgrowths (FO), and microcrystalline dolomite/Fe- dolomite and siderite are the primary cements noted in this sandstone. • • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 20, 1 -20R DEPTH: 3724.0 Ft. t -'� s . >..„ } y ! t f • sl R • _._... 'a r a..... a..... A A. it � • f4. , 1 * M r If • i ° .. ' . IG k f i • ,0 , '''' ' AlA, V .)put Magn Det WD 200 pm • t # 20.0 kV 5.0 100x S 10 2 Bluebuck 6 -7 -9. AK. 1 -20R. 3724.0' • > n: - o, [ S. # .mow+.. - -. ' w . j ... - .._ • : Plate 20A, 100x: Intergranular pores (IG) are small and range from open to mostly occluded. Compaction • of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays coat grains and • fill pores. Secondary porosity (SP), due to the dissolution of unstable feldspar grains adds to the overall orosi of this felds,athic sandstone. • • ID 1 • Grain- coating Illitic Clay • . `" • ► r. FO • n y w ' .. • . ...„-... „- ,,, - , "A .4 ",,4 ,, e ... ... 4, • ' . • cc. Spot Magn Det WD 50 pm 20.0 kV 5.0 500x SE 10.0 Bluebuck 6 -7 -9, AK. 1 20R. 3724 0' • .k A i , • Plate 20B, 500x: Authigenic clay precipitates (illite, mixed -layer illite - smectite, kaolinite), moderately developed feldspar overgrowths (FO), and microcrystalline dolomite/Fe- dolomite are the primary cements • noted in this sandstone. • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 19, 1 -19R DEPTH: 2681.0 Ft. • c t t i' • ' . A°. 14: . ' 'A..- 1\4 * .' *- 7 44., : ;;Iti ''' • • •• ■ • s { • t • ' /� ,,, • Air °''` ' '. ..` • 1. { , V - • • cc. Spot Magn Del WD 200 pm • - 20.0 kV 5.0 100x SE 10.2 Bluebuck 6 -7 -9, AK, 1 19R. 2681.0' 1111 • Plate 19A, 100x: Intergranular pores (IG) are small and range from open to mostly occluded. Compaction • of ductile lithic grains and mica has reduced primary porosity in this sandstone. Discontinuous illitic clays • coat grains and fill pores. Detrital clay, primarily chlorite, was also noted as a pore - filling constituent in • this sandstone. * R ., w . 1 ; ' Pyrite Compaction • y` - . • • %,.., 't - ' .11 . . . 1 , , , r �' s ! r • • � • ��` . w.. _ _- �►.- 1'a -�y 7 A ,.. . -1 . , .11 . • s 4.4 . Illitic Clay 4. ■ I ' 4 011110 • • cc V Spot Magn Det WD 50 pm Qk • ✓ 0.0 kV 5 0 650x SE 10.0 Bluebuck 6 -7 -9, AK. 1 -19R, 2681 0' Plate 19B, 650x: Poorly developed quartz overgrowths, microcrystalline dolomite/Fe- dolomite /siderite, and a minor amount of authigenic clay precipitates and pyrite are the primary cements noted in this • sandstone. • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 18, 1 -18R DEPTH: 2646.0 Ft. 'Ai w t ) r- ca g� mot, # 4he ' A jr.' ' . '''''‘ ' '4:. IG • - • a. 4 "' `' • • • + l t " "to x t* iF4 ASV 0 N _ • A cc V Spot Magn Det WD I I 200 pm • 20 0 kV 5 0 100x SE 10 3 Bluebuck 6-7-9, AK, 1-18R, 2646 0' ,t,',_ • 1 . Plate 18A, 100x: Intergranular pores (IG) are small and range from open to mostly occluded. Compaction • of ductile lithic grains and mica has reduced primary porosity in this sandstone. Discontinuous illitic clays • coat grains and fill pores. Detrital clay, primarily chlorite, was also noted as a pore - filling constituent in this sandstone. • 4�- Lithics .3 . . y, • - , . :, • • • 1 4404' . ' I, • , , "' � # A V • ._. , -. .- .. . • . r;. + • K: Chlorite ' t • ''. °"Acc.V Spot Magn Det WD I 50 um 420.0 kV 5.0 500x ` [ 10 3 Bluebuck 6 / 9. AK, 1 18R, 2646 0' • t �' '_, • Plate 18B, 500x: Poorly developed quartz overgrowths and authigenic clay precipitates (illite, chlorite, kaolinite) are the primary cements noted in this sandstone. • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 17, 1 -17R DEPTH: 2641.0 Ft. • � ' r • AL ma y ( - - L fi ,4 . ` • � , I "'1 . • • • 'ft S. J_ y' 4 -.k N , 1. 1 � , ` 'Lt'. 1 • -fir,,„ . ',► ' ..N. %i it ..- ,� • i "tr: • r • .t i • Acc V Spot Magn Det WD 200 pm 20 - kV 5 - 100x SE 10.2 Bluebuck 6 -7 -9. AK, 1 -17R. 2641.0' ` • • Plate 17A, 100x: Intergranular pores (IG) range from open to mostly occluded. Compaction of ductile • lithic grains and mica has reduced primary porosity in this sandstone. Discontinuous illitic clays coat grains • and fill 'ores. Detrital cla , .rimaril chlorite, was also noted as a •ore- fillin. constituent in this sandstone. • _ • • I • • QO • Compacted :, Mica • • • • • • 4:1► 7 • Acc V Spot Magn Det WD I I 50 pm • 20.0 kV 5.0 500x S F 10 0 Bluebuck 6-7-9, AK, 1 -17R, 2641 0' • Plate 17B, 500x: Poorly developed quartz overgrowths and a minor amount of authigenic clay precipitates • are the primary cements noted in this sandstone. • • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 16, 1 -16R DEPTH: 2636.0 Ft. • • • n • • • .,+;k • ,- • • IG • A 1 '` . • - = ° ,` ° .0 • cc .V Spot Magri Det WD I I 200 um F 2 0.0 kV 5.0 100x SE 10 3 Bluebuck 6 -7 -9, AK, 1 -16R, 2636.0' Plate 16A, 100x: Intergranular pores (IG) are small and range from partially to mostly occluded. • Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Discontinuous • illitic clays coat grains and fill pores. Detrital clay, primarily chlorite, was also noted as a pore - filling constituent in this sandstone. y 4 *. F` t * 4 t w f . "' • 1 FO 3 "_ �, '" °" ... • < Siderite a t' ' e M 4 yv e 'y am � , .: � . . i ; � t av i * . k 2 . - . - '441 ‘ • # 1 4 k _ , , ..... ..„„. „, ..... , „._ _ , , .010- • -* / W! • `" Acc V Spot Magn Det WD 50 pm 20 0 kV 5 0 650x SE 10.4 Bluebuck 6 - - AK 1 16R, 2636.0' ; ' • Plate 16B, 650x: Poorly developed quartz overgrowths, moderately developed feldspar overgrowths (FO), microcrystalline siderite, and a minor amount of authigenic clay precipitates are the primary cements noted • in this sandstone. • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 15, 1 -15R DEPTH: 2630.0 Ft. s -- ,� , • ' • • F 7 / /` • I • it. idol" ,4 -4.11 " *. ' Itit ip p `' PAL .,,,,T • • • irr �i ' • V. IG ...5f" c • 1 `title- . At 4 • • Acc.V Spot Magn Det WD I I 200 pm 20 0 kV 5.0 100x SE 10 3 Bluebuck 6 / 9, AK, 1 -15R, 2630.0' • Plate 15A, 100x: : Intergranular pores (IG) range from open to partially occluded. Compaction of ductile • lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays were noted as fine, • discontinuous grain coating, however, the majority of the clay content present in this sample is primarily • contained in the lithic fra ! ments. • Compacted • Mica • • • Ifiair _ • fir. ! • • / .4.1.0 _ ANIL • +.rI • : 10 : 46600 000 ,••• 410 ' A ggit tpk • ,, Acc V Spot Magri Det WD I I 50 pm • ,,,* 20 0 kV 5 0 500x SE 10.3 Bluebuck 6 -7 9 AK. 1 15R. 2630 0' Plate 15B, 500x: Poorly developed quartz overgrowths and authigenic clay precipitates (illite, chlorite, • kaolinite) are the primary cements noted in this sandstone. • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 14, 1 -14R DEPTH: 2623.0 Ft. • • • • • • • No Image Available • • • • • • • • • Plate 14A, x: • • • • • • • • • • No Image Available • • • • • • • • Plate 14B, x: • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 13, 1 -13R DEPTH: 2617.0 Ft. • • • • • • • • No Image Available • • • • • • • • • Plate 13A, x: • • • • • • • • • • No Image Available • • • • • • • • • Plate 13B, x: • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 12, 1 -12R DEPTH: 2222.0 Ft. • • • 4 t _ ... .- • cte '... • 0400,4110 . t. ♦ • - f • +� s''' , - • 1111111104i ''' , f t = - `At • .� t r i. 4 . r' ' R IG . i ". r • • cc.V Spot Magn Det WD I. - 200 pm • 20 0 kV 5 0 100x SE 10.0 y �Bluebuck 6 -7 -9. AK 1 -12R. 2222.0' • Plate 12A, 100x: Intergranular pores (IG) are small and range from partially to mostly occluded. • Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays • were noted as fine, discontinuous grain coating, however, the majority of the clay content present in this sam,le is irimaril contained in the lithic fra:ments. • Compacted • "- Mica • 4 . • # • • Chert _ . » ... • :17 01,r. — 7 • Clay Illitic • w. A .`- ‘1 ,..-- _. i „ft.. t ., —. ' N s • 00 9 • ' ' ' r .* * a ' - 4. 0 • T. t ...., 11, • • .. Aar 41 4 • Acc.V Spot Magn Det WD I ( 50 um '20.0 kV 5.0 650x SE 10.0 Bluebuck 6 -7 -9, AK, 1 -12R, 2222.0' • * w +_ • Plate 12B, 650x: Poorly developed quartz overgrowths, microcrystalline Fe- dolomite /dolomite, and authigenic clay precipitates (illite /possibly mixed layer illite- smectite, chlorite, kaolinite) are the primary • cements noted in this sandstone. • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trim s, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 11, 1 -I1R D EPTH: 2216.0 Ft. r • � • • ' illik s ,' w • 40. • : ` • 4 1 . s • r .. *fi -. + ' . _ h r e 4 � �* • • • Acc V Spot Magn Det WD I 2 00 µm 0 20.0 kV 5.0 100x SE 10.4 Bluebuck 6 -7 -9, AK, 1 -1 1 R, 2216 0' • Ti P • late 11A, 100x: Intergranular pores (IG) are small and range from partially to mostly occluded. Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays • were noted as fine, discontinuous grain coating, however, the majority of the clay content present in this sam . le is • rimaril contained in the lithic fragments. • "` Compacted ' • '-. - - Mica • • Lithic ' < • • _ • � �` • �"• _ -� ■ _ , • _. ` 4 • ."- y s . • • • • • • • Acc.V Spot Magn Det WD I I 50 pm 20 0 kV 5 0 500x SF 10 1 Bluebuck 6 - 9, AK. 1 2216 0' • liii ill. pr Plate 11B 500x: Poorly developed quartz overgrowths, atch dolomite and authigenic clay precipitates Y P 9 p Y g YP P (illite /possibly mixed layer illite - smectite, chlorite, kaolinite) are the primary cements noted in this • sandstone. • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 10, 1 -10R DEPTH: 2207.0 Ft. A o • 1 A e, • ._ = , ; - • ,,,:y ' tom ; : ,. l m 1 •.` • r 0 r r * • Mica " , r . 4 I y - ' (IL. 1116 `1P .4 % Ari • t , . y a" • , , / • t x �Y ~ _ r` 4 'i, • • _:.. - 'A cc.V Spot Magn Det WD 200 um • $1 20 0 kV 5.0 100x SE 10 5 Bluebuck 6 -7 -9, AK, 1 -10R. 2207 0' P late 10A, 100x: Intergranular pores (IG) are small and range from open to mostly occluded. Compaction • of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays were noted as • fine, discontinuous grain coating, however, the majority of the clay content present in this sample is rimaril contained in the lithic fra l ments. • ,. , - + Illitic • .t. Clay w • IP • . • • Mica • . • • „N.: • • • Dolo • 4 • ' cc. Spot Magn Det WD I I 50 um 20.0 kV 5.0 660x E 10.3 Bluebuck 6 -7 -9, AK. 1 -10R, 2207.0 • - - • Plate 10B, 650x: Poorly developed quartz and feldspar overgrowths, patchy dolomite, and a minor amount of authigenic clay precipitates (illite /mixed layer illite - smectite) are the primary cements noted in this • sandstone. The illitic clay content contains a smectitic component which should be taken into consideration • when choosing completion fluids. • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 9, 1 -9R DEPTH: 2200.0 Ft. • • • • • • • • No Image Available • • • • • •. • • • Plate 9A, x: • • • • • • • • • • No Image Available • • • • • • • • • Plate 9B, x: • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 8, 1 -8R DEPTH: 2190.0 Ft. • _ , k A, • 6-• • �,. ;'. i p '^ YID` ..- «i, .'.�: Ewa ..�. ': t' . • y.f f ✓ • .. K- _ :... Occluded . Pore r. ,. ; + f ,\ i • ..,M, • cc .V Spot Magn Det WD 200 µm • 20.0 kV 5.0 100x SE 10 2 Bluebuck 6-7-9 AK, 1-8R 2190 0' alik • Plate 8A, 100x: Intergranular pores (IG) are small and range from open to mostly occluded. Compaction • has reduced primary porosity in this sandstone. Discontinuous illitic clays coat grains and bridge pores, however, the majority of the clay content present in this sample is primarily contained in the lithic • fra. ments. • <- - . - • SP • i • • QO `r e • • -" °'t ,... a te.. t j ).. i' r•V x . . " . • '1. fit s .,.,; • y Acc.V Spot Magn Det WD ( 50 um 20 -0 kV 5 -0 500x S[ 10. Bluebuck 6 -7 -9 AK 1 8R, 2190.0' • Plate 8B, 650x: Poorly developed quartz overgrowths (QO), microcrystalline dolomite/Fe- dolomite, and a minor amount of authigenic clay precipitates (illite /possibly mixed layer illite - smectite, chlorite, kaolinite) • are the primary cements noted in this sandstone. Secondary porosity (SP), due to the dissolution of unstable 41 feldspar grains, adds to the overall porosity this sandstone. • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska , PLATE 7, 1 -7R DEPTH: 2186.0 Ft. • - ,, Dis • �' ' • • r • • 11111111.' „ ' '1", IG ' • e. j . , vitiiiir ....40,10.` . • ilet.--1' , • Ace V Spot Magn Det WD 200 pm • 20 0 kV 5.0 100x SE 10.0 Bluebuck 6 -7 -9, AK, 1 -7R. 2186.0' ''" • • Plate 7A, 100x: Intergranular pores (IG) range from open to partially occluded. Compaction of ductile lithic grains and mica has reduced primary porosity in this sandstone. Illitic clays were noted as fine, • discontinuous grain coating, however, the majority of the clay content present in this sample is primarily contained in the lithic fragments. The dissolution (Dis) of feldspar grains adds to the overall porosity of the • sandstone. • • Compacted • . ;. , ' • Mica r., 0 - , 11. .': - "to v ., , • .ii■ • Atli ., . s • ' w — KFO . • opor to ii 400 . �. • • 4 +t t �' � "'mot • ' fi e `'° I . / Y ' c ' .: - „ �, y • Micro - crystalline • ,c • , Fe- Dolomite • Acc.V Spot Magn Det WD I 50 pm • ,20 .0 kV 5.0 500x SE 10 3 Bluebuck 6 -7 -9. AK, 1 -7R, 2186.0' • Plate 7B, 500x: Poorly developed quartz overgrowths, moderately developed feldspar overgrowths (KFO, • potassium feldspar in image), microcrystalline dolomite /Fe- dolomite, and a minor amount of authigenic • clay precipitates are the primary cements noted in this sandstone. • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska II • PLATE 6, 1 -6R DEPTH: 2176.0 Ft. • 1 . • _. IG , t , • 401.6 Q isi • • 4. *toe- 4 • • • cc. Spot Magn Det WD I I 200 um • - 20 0 kV 5.0 100x SE 10.3 Bluebuck 6 -7 -9, AK, 1 -6R, 2176 0' Plate 6A, 100x: Intergranular pores (IG) are small and range from open to mostly occluded. Compaction of • the framework grains has reduced primary porosity in this sandstone. Discontinuous illitic clays coat grains • and bridge pores, however, the majority of the clay content present in this sample is primarily contained in the lithic fra•ments. • ilii • - ` M - crystalline °" ` Fe- Dolomite 4 Dis „J.-7,11,4 _ ;' • ,,, �, nlitic • Clay .� Acc.V Spot Magn Det WD I I 50 um 20 0 kV 5 0 650x SF 10.1 Bluebuck 6 -7 -9. AK. 1 -6R, 2176 0' • • Plate 6B, 650x: Poorly developed quartz overgrowths, microcrystalline dolomite/Fe- dolomite, and a minor amount of authigenic clay precipitates are the primary cements noted in this sandstone. The dissolution • (Dis) of feldspar grains adds to the overall porosity of the sandstone. • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska . PLATE 5, 1 -5R DEPTH: 2173.0 Ft. • . 4 Compacted '. . • -- Lithics r. ..,„ , _. 0 ...., 1 • • ,,.., ... , ,_ • • • • k. • ' `k • •° • • •µ N • • • cc V Spot Magn Det WD I I 200 pm • r 20.0 kV 5 0 100x SE 10 3 Bluebuck 1 y AK 1 -5R, 2173.0' • t r _ ' , t „ ` Plate 5A, 100x: Intergranular pores (IG) range from open to partially occluded. Compaction of ductile • lithic grains has reduced primary porosity in this sandstone. Illitic clays were noted as fine, discontinuous • grain coating, however, the majority of the clay content present in this sample is primarily contained in the • lithic fra ! ments. Micro - crystalline 4 0..,„,, d�, ` +' Fe Dolomite • • • ;6— , 4.-* : s r • t r fitt. � r • poi - ' . 4 - y s ' rte.' ' A t • T � + • .nom FO • • Acc V Spot Magn Det WD I I 50 pm • 20 0 kV 5 0 500x SF 10 3 Bluebuck 6 -7 -9, AK, 1 -5R, 2173 0' ' ,ri1 .. II Plate 5B, 500x: Poorly developed quartz overgrowths, well developed feldspar overgrowths (FO), • microcrystalline dolomite/Fe- dolomite, and a minor amount of authigenic clay precipitates are the primary cements noted in this sandstone. • • • • • • i SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska PLATE 4, 1-4R DEPTH: 2020.0 Ft. • . s ` • • Occluded Pore "` ` 47 • f f q ' SSSS • . ,w f a i � a • " ' t ' -. ..' is, ♦ " 4.fit, . " s. — 1l _ f • _ w • I( l r.. • Acc.V Spot Magn Det WD I I 200 pm • 20 0 kV 5 0 100x SF 10 3 Bluebuck 6 -7 -9. AK, 1 -4R, 2020 0' • . - Plate 4A, 100x: Intergranular pores (IG) range from open to partially occluded. Moderate compaction of i framework grains and precipitation of authigenic kaolinite (Kao) booklets has reduced primary porosity in • this sandstone. • • Kao ' n • * , . 2- , .. ' , , • It • f lip - ., . 4 . : : * * , '+' 1 • x Acc V Spot Magn Det WD I I 50 pm • e 20.0 kV 5.0 500x SE 10.4 Bluebuck 6 -7 -9. AK. 1 -4R, 2020.0' 1, Alr r or 1w .. • Plate 4B, 500x: Authigenic clay precipitates (illite /possibly mixed layer illite smectite, kaolinite) are the primary cement phases noted in this sandstone. Illitic clays were noted as fine, discontinuous grain coating, • however, the majority of the clay content present in this sample is primarily contained in the lithic • fragments. • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 3, 1 -3R DEPTH: 1992.0 Ft. • • • • • • • • No Image Available • • • • • • • • • Plate 3A, x: • • • • • • • • • No Image Available • • • • • • • • • Plate 3B, x: • • • • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 2, 1 -2R DEPTH: 1964.0 Ft. ' ,r ., „...isiotor.t., , • 1)1.0 t x 1 a "'4 • max' + . , '0 , • • • Acc.V Spot Magn Det WD T 500 um • 20 0 kV 5.0 50x SF 10 1 Bluebuck 6 -7 -9, AK, 1 -2R, 1964 0' • Plate 2A, 50x: NOTE: Possible disruption of sedimentary fabric due to poorly cemented nature of • sample. Intergranular pores (IG) appear to be relatively unobstructed to partially occluded, primarily by • authigenic clay precipitates. Discontinuous illitic clays coat grains and bridge pores, however, the majority of the cla content i resent in this sam • le is • rimaril contained in the lithic fra l ments. • , • • • KCI • • ; °. illitic • Clay • • • • ,, � • • iw 1 • • „e• 4 ACC V Spot Magn Det WD 1 I 100 µm 20.0 kV 5.0 350x SE 9.7 Bluebuck 6 -7 -9, AV 1 ;'I, 1 (164 0' • Plate 2B, 350x: Authigenic clay precipitates is the primary cement noted in this poorly cemented sandstone. The illitic clay content contains a smectitic component which should be taken into consideration • when choosing completion fluids. • • • • • SCANNING ELECTRON MICROPHOTOGRAPHS • RSWC End Trims, Bluebuck 6 -7 -9, White Hills, North Slope, Alaska • PLATE 1, 1 -1R DEPTH: 1962.5 Ft. w • • • .: • mitic -. Clay. • • • • -4 ` • j + I* • I G • • Acc V Spot Magn Det WD I 200 pm • 20.0 kV 5.0 150x SF 10 5 Bluebuck 6 -7 -9. AK. 1-1R. 1962 5' • Plate 1A, 150x: NOTE: Possible disruption of sedimentary fabric due to poorly cemented nature of • sample. Intergranular pores (IG) appear to be relatively unobstructed. Discontinuous illitic clays coat • grains and bridge pores, however, the majority of the clay content present in this sample is primarily • contained in the lithic fra: ments. • Pore - bridging v • Clay _ ! • • ` > w • �- w .4 . 4}. _ • . . • *}.'t .. . 00 • ;max • • Acc.V Spot Magn Det WD I I 100 pm • 20.0 kV 5.0 350x SE 10.3 Bluebuck 6 -7 -9. AK, 1 -1 R. 1962 5' • Plate 1B, 350x: Poorly developed quartz overgrowths (QO) and authigenic clay precipitates are the • primary cements noted in this poorly cemented sandstone. The illitic clay content may contain a smectitic • component which should be taken into consideration when choosing completion fluids. • • • •