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211-018
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. g .Z_I at - Q 1'' Well History File Identifier Organizing(done) ❑ Two-sided III IIIIII I III 11111 ❑ Rescan Needed III 1111111 IIII III RES AN DIGITAL DATA OVERSIZED (Scannable) Coor Items:vj ❑ Diskettes, No. • ❑ Maps: Greyscale Items: ❑ Other, No/Type: ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Maria Date: ! /s/ PIP Project Proofing IIIIIIIIIIIIIIIII BY: Date: (pigoifil, /s/ ffifi Scanning Preparation ` x 30 = 30 + a.14- = TOTAL PAGES 5 BY: 42E, Date: (Count does not include cover sheet)m 74- /s/ Production Scanning III 11111111111 11 III Stage 1 Page Count from Scanned File: gv (Count does include cover heet) Page Count Matches Number in Scanning Preparation: YES VV11 NO BY:1 digib Date: b'16/RI. /s/Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. 1111111111111 liii ReScanned III IIIIIIIIII 11111 BY: Maria Date: /s/ Comments about this file: Quality Checked 11 111111 III III III o o 2 -J'6.0 O I'� Z Z Z OD I M CO N f0 Z Z Z G z 0 Z° E E N >- >- } N — 7y 0 a) VI) 0 491 a) 7 d N N "till) O E O co,.- o I o. a7 11) N N Nco �. N a3 O ` ._ = CO O Q Z III 7 O V Q c_c Eo r L o F. c Q H U 2 CL 2 U 0 z . o ca a a as U U co 0 W 0 0 0 2 Z Z Z V U o E o Z Z Z N « O0 E } } } a NN W I a) O corn D I.I. 0 co m O co co o ` 0 LL 16 0 II a F U1I ° 5u) E ) E m co 1 (1�_ E rn o ! re Z 0 N Z ti liCL ccl c.6 m w rn it E ��[ III w a' 0) ` t\U Z m m rn a O V a d E ° E •�` Z " .. 0 0 o m 'y h ICC as � Z O m Q- I to O O 3 V O cn 15 U U i a M zo al J m Nrn m a O V Z Z Z U = U E co J (A Z Z Z J O K N 'I >- >- } v c 0 ~ as to d E 0 O O N o CC as C 0 a) E M Y c c F E O 0 I c o Q O c m o • ti5 Q ZI 76 g t O 0 C3 Ili 0 o 0 2 0 Z co j N a) Z Z Z O Z Z Z I Z w Ti'4:5,>- >-c E D c 03 �.e0 Z p d N 'o F O ' mO .- U « E C N I 1 17, 'O N OZ O O W D Z 0 O Q JI d N O« a7 Z N Yw rnLL Z O H m D a>lo y Q O c0 c C W LL O) 2 615 U ,. d 16 Z El 0 no N J 0 d 7 0 E O. 0 W Q o. d o>« o I m O E U a 0 0 0 Ct 0 1 3 3 I Z0 d A O A _ / �T Davies, Stephen F (DOA) From: Vaughan, Alex[Alex.Vaughan@pxd.com] Sent: Thursday, August 02, 2012 11:34 AM To: Davies, Stephen F (DOA) Cc: Campoamor, Kathy; Tirpack, Robert Subject: PTD#211-018 Steve, PNRA requests that PTD#211-018 approved by the AOGCC on 3/1/2011 be withdrawn and replaced by the recently submitted PTD application for'alike named' ODST-47. Alex Vaughan Senior Drilling Engineer PIONEER NATURAL RESOURCES 907.343.2186 (office) 907.748.5478 (mobile) Statement of Confidentiality: This message may contain information that is privileged or confidential. If you receive this transmission in error, please notify the sender by reply e-mail and delete the message and any attachments. i /sEANPARNELL,GOVERNOR ALASKA OIL AND GAsicgiTE AM S 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 Alex Vaughan FAX (907)276-7542 Operations Drilling Engineer Pioneer Natural Resources Alaska, Inc. 700 G Street, Suite 600 Anchorage, AK 99501 Re: Oooguruk Field, Undefined Oil Pool, ODST-47 Pioneer Natural Resources Alaska, Inc. Permit No: 211-018 Surface Location: 2879' FSL, 1186' FEL, SEC. 11, T13N, R7E, UM Bottomhole Location: 1503' FSL, 2370' FEL, SEC. 09, T13N, R7E, UM Dear Mr. Vaughan: Enclosed is the approved application for permit to drill the above referenced development well. The permit is approved subject to full compliance with 20 AAC 25.055. Approval to perforate and produce is contingent upon issuance of a conservation order approving a spacing exception. Pioneer Natural Resources Alaska, Inc. assumes the liability of any protest to the spacing exception that may occur. This permit to drill does not exempt you from obtaining additional permits or an approval 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. 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. Sincerely, Daniel T. Seamount, Jr. 571. Chair DATED this ! day of March, 2011. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA A KA OIL AND GAS CONSERVATION CON 510N PERMIT TO DRILL 20 AAC 25.005 la.Type of Work: lb.Proposed Well Class: Development-Oil U • Service- Winj ❑ Single Zone Q . lc.Specify if well is proposed for: Drill Q • Redrill ❑ Stratigraphic Test ❑ Development-Gas ❑ Service-Supply ❑ Multiple Zone ❑ Coalbed Gas ❑ Gas Hydrates ❑ Re-entry ❑ Exploratory ❑ Service- WAG ❑ Service-Disp ❑ Shale Gas ❑ 2.Operator Name: 5. Bond: Blanket ❑✓ Single Well ❑ 11.Well Name and Number: Pioneer Natural Resources Alaska, Inc. Bond No. 103655283 • ODST-47 ' 3.Address: 700 G Street,Suite 600 6.Proposed Depth: 12.Field/Pool(s): Anchorage,AK 99501 MD: 18,245' • TVD: 4961' • pre 4a. Location of Well(Governmental Section): 7.Property Designation(Lease Number): Undefined Tip-ott, s/11(1 Surface: 2879'FSL, 1186'FEL,Sec. 11,T13N, R7E, UM . ADL 355036/ADL 355037 ' Top of Productive Horizon: 8.Land Use Permit: 13.Approximate Spud Date: 2379'FSL,3699'FEL,Sec. 15,T13N, R7E, UM 417497 March 5,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1503'FSL,2370'FEL, Sec.9,T13N, R7E, UM 5760/5724 2379' 4b.Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 56.2 feet • 15.Distance to Nearest Well Open Surface: x-469811.98 • y-6030995.50 • Zone-ASP 4 GL Elevation above MSL: to Same Pool: ODST-45A is 1882' 13.5 feet- away • 16.Deviated wells: Kickoff depth: 180 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 92.65 degrees Downhole: 2219 • Surface: 1673 • 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) 1 24" 16" 109# H-40 Welded _ 115' Surface Surface 158' 158' Driven 13-1/2" 10-3/4" 45.5# L-80 _ BTC 6371' Surface Surface 6414' 3230' 724 sx PF'L';521 sx Class'G' 9-7/8" 7-5/8" 29.7# L-80 _ BTC-M 12,263' Surface Surface 12,306' 4918' 166 sx Class'G' • 6-3/4" 4-1/2" 12.6# L-80 Hydril 521 6089' 12,071' 4891' 18,245' 4961' Uncemented 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 ND(ft): Junk(measured): Casing Length Size Cement Volume MD ND Conductor/Structural Surface _ Intermediate - _ Production _ Liner Perforation Depth MD(ft): Perforation Depth ND(ft): 20. Attachments: Property Plat Q BOP Sketch❑ Drilling Program Q Time v.Depth Plot ❑ Shallow Hazard Analysis Diverter Sketch❑ Seabed Report ❑ Drilling Fluid Program Q 20 AAC 25.050 requirements 21. Verbal Approval: Commission Representative: Date 22. I hereby certify that the foregoing is true and correct. Contact Alex Vaughan, 343-2186 Prepared By:Kathy Campoamor,343-2183 Printed Name Alex Vaughan Title Operations Drilling Engineer Signature Phone 343-2186 Date 2/3/2011 Commission Use Only Permit to Drill LL� API Number: Permit Appeal \ See cover letter for other Number: ,Z✓' /Cl„)(Z 50-/&- "2 '6, [ Date: ✓✓✓ t L L requirements. Conditions of approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane, as hydrates,or gas contained in shales:Er Other: 1-15O0 SOS:.- 40r l e S't l \ Samples req'd: Yes❑ Now' Mud log req'd: Yes ❑,No[i �( ZS � �U / g, nn to -t h I,s T 6-1-114! H2S measures: Yes❑ No[V Directional svy req'd: Yes [.IJ No❑ EsP /e�" '�..t7Oh APPROVED BY THE COMMISSION 3/` // DATE: �i/ 1 J , ,COMMISSIONER - 2,4__ Z .2_ ci..�/gyp/ .ry �.p {� 0RIGINAI / / J�:"`'6SSIOIf 1j 1� // qiiForm 10-401(Revised 7/2009) This permit is valid for 24 months fro uorapproval(20 AAC 25.005(g)) d��� Submit in Duplicate PIONEER NATURAL RESOURCES ALASKA Pioneer Natural Resources Alaska, Inc. 700 G Street,Suite 600 Anchorage,Alaska 99501 Tel:(907)277-2700 Fax:(907)343-2190 February 4th, 2011 State of Alaska Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite #100 Anchorage, AK 99501 RE: Application for Permit to Drill ODST-47 Surface Location: 2879' FSL, 1186' FEL, Sec 11, T13N, R7E, UM X = 469,811.98, Y= 6,030,995.50, ASP4 Pioneer Natural Resources Alaska, Inc. (PNRA) hereby applies for a Permit to Drill a development well from the Oooguruk Drill Site (ODS) located within the Oooguruk Unit. The well is designed to be a single-lateral well in the Oooguruk-Torok formation. As indicated in the attachments, the drilling and well construction program includes the following: • Surface Hole: o Drill 13-1/2" to -6,414' MD /3,230' TVD and set 10-3/4" casing. • Intermediate Hole: o Drill 9-7/8" to -12,306' MD /4,918' TVD and set a 7-5/8" Intermediate casing into the top of the Oooguruk-Torok formation. • Lateral Hole: o Drill 6-3/4" horizontally to -18,245' MD / 4,961' TVD and set a 4-1/2" solid liner with perforated pups. • Completion: o 4-1/2"fracture stimulation and ESP completion with FSV, SSSV & GLM. S t1p.s.r re- r�.•� 7 -16-11 Alaska Oil & Gas Conservation Commission February 4th, 2011 Page 2 of 3 PNRA will implement Managed Pressure Drilling technology (MPD) while drilling the lateral hole section of ODST-47 as outlined below. • From the Intermediate Shoe to the lateral TD o Use -8.0-8.4 ppg fluid while using MPD to control pressure from the surface to -8.4 ppg EMW at the bottom of the hole during connections and while tripping Utilizing the MPD process described above allows PNRA to reduce the materials needed for the well, increasing the overall safety of the personnel on the development by handling less material. In addition the lower solids in the production section mud system will reduce formation damage along the sandface of the well. Based on information previously submitted to the AOGCC and included in the AOGCC Oooguruk Field File, PNRA requests an exemption from 20 AAC 25.035 (c) which requires a diverter system be installed on the well while drilling the surface interval. In the future, PNRA may provide information and permitting requesting annular disposal of drilling wastes on this well. Please find attached information as required by 20 AAC 25.005 (a) and (c) for your review. Pertinent information attached to this application includes the following: 1) Form 10-401 Application for Permit to Drill per 20 AAC 25.005 (a). 2) A copy of the proposed drilling program per 20 AAC 25.005 (c) (13) including: a. The drilling fluid program as required by 20 AAC 25.033 b. Complete logging and mud logging operations are planned and descriptions • are attached. c. A complete proposed casing and cementing program is attached as per 20 AAC 25.030. d. A summary of the drilling operations. e. A summary of drilling hazards per 20 AAC 25.005 (c) (4). f. A wellbore schematic is also attached visually depicting the proposed well. 3) A copy of the Planned Directional Well Path - including traveling cylinder and development layout plots. The following items are on file with the AOGCC: 1) A plat showing the surface location proposed for the well per 20 AAC 25.005 (c) (2). 2) Diagrams and descriptions of the BOP and diverter equipment to be used on Nabors Alaska Rig 19-AC as required by 20 AAC 25.035 (b) and (c). 3) A description of the procedure for conducting formation integrity tests per 20 AAC 25.035 (c) (5). Alaska Oil & Gas Conservation Commission February 4th, 2011 Page 3 of 3 4) PNRA does not anticipate the presence of H2S in the formations to be encountered in this well. However, H2S monitoring equipment as specified in 20 AAC 25.065(1) will be functioning on the rig as standard operating procedure for all wells drilled by that rig. Products for treating H2S contamination in the drilling mud system will be maintained on the ODS. The following are PNRA's designated contacts for reporting responsibilities to the Commission: 1) Completion Report Vern Johnson, Drilling Superintendent (20 AAC 25.070) 907.343.2111 vern.johnson@pxd.com 2) Geologic Data and Logs Paul Daggett, Senior Staff Geophysicist (20 AAC 25.071) 907.343.2134 paul.daggett@pxd.com The anticipated spud date for this well is March 5th, 2011. If you have any questions or require further information, please contact Alex Vaughan at 907.343.2186. Sincerely, 10.1 Alex a- ughan Operations Drilling Engineer Attachments: Form 10-401 Supporting permit information cc: ODST-47 Well File Permit to Drill Well Plan Summary ODST-47 Oooguruk — Torok Production Well Surface Casing @ 6,414' MD / 3,230' TVD Intermediate TD @ 12,306' MD / 4,918' TVD Lateral TD @ 18,245' MD / 4,961' TVD • Surface Location: 2879' FSL, 1186' FEL, Sec 11, T13N, R7E, UM • ASP 4 (NAD27) projection X =469,811.98 Y= 6,030,995.50 Target: Oooguruk-Torok 2379' FSL, 3699' FEL, Sec. 15, T13N, R7E ,Umiat X =462,000.88 Y=6,025,250.96 4918' TVDrkb Bottom Hole Location ODST-47 1503' FSL, 2370' FEL, Sec. 9, T13N, R7E, Umiat X =458,065.18 Y= 6,029,675.97 4961' TVDrkb AFE Number: TBA Est. Start Date: March 5th, 2011 Rig: Nabors 19AC Operating days: 34 days to Drill and Complete Objective &Well Type Torok Development Well Well Design: Modified Slimhole(10-3/4"x 7-5/8" liner x 4-1/2"liner)Single Lateral Current Mechanical Condition: Well Bay Footing/ODS Ground Level: Elevation above MSL: 13.5' • RKB to Ground Level: 42.66' ✓ Rig Elevation: RKB + MSL = 56.16' • Conductor: 158' MDrkb Pioneer Natural Resources Last Revised: February 3rd,2011 ODST-47 Permit To Drill Page 1 of 12 Well Control: Well Section Pressure Depth psi TVD Basis 13-1/2" Surface Section Maximum 1444 3230 Based on seawater gradient of 0.4472 psi/ft anticipated BHP Maximum surface 1089 Surface Based on BHP and a full column of gas from TD @ 0.11 pressure psi/ft 9-7/8" Intermediate Hole Section Maximum 2199 4918 Based on seawater gradient of 0.4472 psi/ft anticipated BHP Maximum surface 1658 Surface Based on BHP and a full column of gas from TD @ 0.11 pressure psi/ft 6-3/4" Lateral Hole Section Maximum 2219 0)496 Based on seawater gradient of 0.4472 psi/ft anticipated BHP Maximum surface 1673 Surface Based on BHP and a full column of gas from TD @ 0.11 pressure psi/ft Pioneer Natural Resources Last Revised: February 3`d,2011 ODST-47 Permit To Drill Page 2 of 12 Maximum casing pressure: 4500 psi @ surface Planned BOP test pressure: 4500 psi (annular to 2500 psi) Due to required 4500 psi casing pressure test. Planned completion fluid: 10.2 ppg Brine/6.8 ppg Diesel / Diverter(see attached schematic)-Note: Requesting Diverter Exemption on a Well by Well Basis): ✓ Hydril 21-1/4"2M annular BOP 1 16"full opening knife gate valve, hydraulically actuated 16"diverter line 5000 psi BOP stack (see attached schematic): Hydril GK 11"5M annular BOP Hydril 11"5M single ram BOP w/studded connections Hydril 11"5M single ram BOP w/studded connections Drilling cross 11"5M x 11" 5M with 2 ea. 3-1/8"5M side outlets w/flanged connections 2 ea. 3-1/8"5M full opening inner manual gate valves mounted on drilling cross 2 ea. 3-1/8"5M full opening outer remote hydraulic controlled gate valves mounted on inner gate valves. Hydril 11"5M single ram BOP w/studded connections Formation Integrity Testing Requirements: Test Point Depth Test Type Minimum EMW 10-3/4" Surface Shoe Rathole + 20' to 50'from shoe LOT 12.5 ppg 7-5/8" Intermediate Shoe Rathole +20'from shoe FIT 12.5 ppg Drilling Fluids Program: Surface Hole Mud Properties: 13-1/2" hole LSND Interval Density(ppg) Viscosity(secs) YP PV MBT API FL Initial 8.8 ppg 150-200 35-50 10-25 < 12 Unrestricted Final 9.2 -9.6 ppg 70- 100 25-35 10-25 < 12 Intermediate Hole Mud Properties: 9-7/8" hole LSND Interval Density(ppg) Viscosity(secs) YP PV MBT API FL Initial to TD 9.8 ppg 40-60 15-25 10-20 < 15 8- 10 Production Hole Mud Properties: 6-3/4" hole MOBM Interval Density(ppg) Viscosity(secs) YP PV ES HTHP 0/W Initial to TD 8.0-8.4 ppg 55-80 12-25 10-20 800-2000 <6 94/6 (-8.4 ppg via MPD ' Pioneer Natural Resources Last Revised: February 3'd,2011 ODST-47 Permit To Drill Page 3 of 12 Formation Markers: Formation Tops MD (ft) TVDrkb(ft) Pore Press. EMW Comments (psi) (PPM Base of Permafrost 1709 1600 Top West Sak 3280 2234 Tuffaceous Shales 5358 2895 Hue 2 Tuff 6320 3200 SCP 6415 3230 Brook 2B 9360 4166 Top Torok Sand 12180 4903 2142 8.4 Production Zone • Mid Torok 12310 4918 Lower Torok 15540 4959 TD 18245 4961 Pioneer Natural Resources Last Revised: February 3'd,2011 ODST-47 Permit To Drill Page 4 of 12 Logging Program: 13-1/2" Section: Surface Drilling: Dir/GR Open Hole: N/A Cased Hole: N/A 9-7/8" Section: Intermediate Drilling: Mud Logging Dir/GR/ Res Open Hole: N/A Cased Hole: 6-3/4" Section: Lateral Drilling: Mud logging ABI /Dir/GR/AzRes/AzDen/ Neut/PWD • Open Hole: N/A Cased Hole: N/A Pioneer Natural Resources Last Revised: February 3`d,2011 ODST-47 Permit To Drill Page 5 of 12 ODST-47 Casing Program: Hole Casing/ Weight Grade Conn. Casing Csg/Tbg Hole Btm Size Tubing Length Top MDrkb/TVDrkb MDrkb 24" 16" 109# H-40 Welded 115 Surface 158 158 13-1/2" 10-3/4" 45.5# L-80 BTC 6371 Surface 6414 3230 9-7/8" 7-5/8" 29.7# L-80 BTC-M 12263 Surface 12306 4918 6-3/4" 4-1/2" 12.6# L-80 Hydril 521 6089 12071 18245 4961 Tubing 4-1/2" 12.6# L-80 Hydril 521 12028 Surface 12071 4891 Casing Properties Size Weight Grade ID Drift Conn. Internal Collapse Tensile Strength ID Yield (psi) (psi) Joint Body 16" 109# H-40 14.67" 14.5" Welded Conductor casing 10-3/4" 45.5# L-80 9.95" 9.794" BTC 5210 2470 1063M 1063M ,/ 7-5/8" 29.7# L-80 6.875" 6.75" BTC-M 6890 4790 683 M 683 M 4-1/2" 12.6# L-80 3.958" 3.833" Hydril 521 na na 289 M 289 M Pioneer Natural Resources Last Revised: February 3rd,2011 ODST-47 Permit To Drill Page 6 of 12 Cement Calculations: Casing Size: 10-3/4" Surface Casing-single stage Basis: Lead: 75%excess over gauge hole in permafrost+ 50 bbls, 30% excess over gauge hole below permafrost Lead TOC: Surface Tail: 30% excess, plus 85' shoe track Tail TOC: 5,200' MD Total Cement Volume: Preflush 10 bbl water Spacer 60 bbl 10.0 ppg Dual Spacer Lead 535 bbls/724 sx of 10.92 ppg Type"L" Permafrost Cement. 4.15 cf/sk, 20.0 gps water req. Tail 110 bbls/521 sx of 15.9 ppg Premium "G" + adds. 1.19 cf/sk, 5.23 gps water req. Displ 609 bbls Mud Temp BHST-55° F, BHCT-60° F estimated Should hole conditions indicate that we will have trouble getting cement to surface, a TAM Port Collar may be run in the casing string and a staged cement job will be performed. In the event that cement is not circulated to surface during the initial surface casing cement job, notify the AOGCC of the upcoming remedial cement work for possible witness of cement to surface. Casing Size: 7-5/8" Intermediate-single stage Basis: TOC: -11,806'MD-500' MD above the top of the Torok. 60% excess, plus 85'shoe track Total Cement Volume: Preflush 10 bbl water Spacer 60 bbl 12.5 ppg Dual Spacer Primary 35 bbls/ 166 sx Premium "G" +adds. 1.17 cf/sk ✓ Displ 561 bbls mum! Temp BHST-- 165° F, BHCT-135° F This well is outside the 1/2 mile radius around the disposal well at the intersection with the Torok disposal zone. Disposal: Annular Injection: Currently not requested, but may be requested in the future. Cuttings Handling: All Class 2 solids will be processed on the Oooguruk Drill Site by the Grind and Inject facility in the Rig Support Complex and injected down the approved Class 1 /Class 2 disposal well, ODSDWI-44. Fluid Handling: All Class 1 and Class 2 fluids will be processed on the Oooguruk Drill Site by the Grind and Inject facility in the Rig Support Complex and injected down the approved Class 1 /Class 2 disposal well, ODSDW1-44. • Pioneer Natural Resources Last Revised: February 3`d,2011 ODST-47 Permit To Drill Page 7 of 12 Pioneer Natural Resources Well Plan Summary Drilling Operations Pre-Ric Work 1. 16"Conductors have been set and the Well Bay modules have been placed. 2.w•ir Rig Activity:, Drill and Complete 1. Nipple up spacer spools and riser. -- the r-f e ' t#sh i ye) 2. MU 13-1/2" Directional Drilling, MWD/LWD assembly. Drill surface hole to the casing point, making wiper trips as necessary. Circulate and condition the hole to run casing. POOH. 3. Run and cement the 10-3/4"surface casing. Bump the plug and bring the pressure up to 3500 psi-chart and hold for 30 minute pressure test. Send chart to ODE. Note: A Port Collar may be run based on hole conditions at Company Rep discretion. 4. Ensure floats are holding. WOC if needed. 5. ND Riser, NU Drilling Spool and BOPE. Test BOPE to 250/4500 psi - Notify AOGCC 48 hours in, advance of test. 6. MU 9-7/8" RSS, MWD/LWD. 7. RIH and cleanout casing to landing collar. Displace well over to Intermediate drilling fluid. 8. Drill through surface shoe, rathole +20'of new hole and perform LOT to a minimum of 12.5 ppg. 9. Drill Intermediate hole to casing point. ' 10. Change one set of pipe rams to 7-5/8"and test BOPE as required. • 11. Run and cement the 7-5/8"29.7#L-80 BTC-M intermediate casing. 12. Bump the plug and bring the pressure up to 3500 psi-hold for 5 minute pressure test. Release pressure and ensure floats are holding. 13. Bullhead corrosion inhibited brine or diesel down the 10-3/4"x 7-5/8"annulus to freeze protect the well to -2000'TVD 14. LD5" DP 15. RU MPD trip nipple& PU 4" DP as needed to TD the lateral hole section. • 16. RIH to landing collar and w/4" DP &6-3/4" mill tooth cleanout bit. 17. Change pipe rams to 4"and test BOPE to 250/4500 psi-Notify AOGCC 48 hours in advance of test. 18. Pressure test casing to 4500 psi-chart and hold for 30 minute pressure. Send chart to ODE. 19. Drill through Intermediate shoe and POH w/cleanout assembly. 20. MU 6-3/4" RSS, MWD/LWD drilling assembly on 4" DP and RIH. • 21. RD MPD trip nipple and RU bearing assembly. 22. Displace to drill-in-fluid for production lateral. 23. Drill rathole + 20' of new hole and perform FIT to 12.5 ppg. 24. Perform drawdown test by reducing MPD choke backpressure to determine Torok pore pressure. 25. Drill 6-3/4" lateral production hole to TD. 26. Circulate and condition hole to run liner. • 27. POH to intermediate shoe and set heavy weight balance brine pill. • 28. RD MPD bearing assembly and RU MPD trip nipple. Cont POH to surface. 29. Change one set of pipe rams to 4-1/2"and test BOPE as required. 30. RIH w/4-1/2"solid production liner w/perforated pups from 150' inside the intermediate shoe to • TD. 31. Release from the liner and set the liner top packer. Displace the well over to 10.2 ppg Brine and POOH. Pioneer Natural Resources Last Revised: February 3rd,2011 ODST-47 Permit To Drill Page 8 of 12 32. Run 4 1/2"fracture stimulation string to top of 4-1/2" liner seal bore. 33. Reverse circulate corrosion inhibited brine or diesel to freeze protect the well to—2000'TVD. 34. Sting 4 1/2"fracture stimulation string into the 4-1/2" liner seal bore. 35. Pressure test 7-5/8"x 4-1/2"annulus to 3500 psi-chart and hold for 30 minute pressure. Send chart to ODE. Rig Activity: Fracture Stimulation 1. Fracture stimulate well • 1,000,000 lbs of 20/40 Carboceramics Carbolite proppant pumped in 300,000 gallons of Schlumberger's YF125ST. The fluid volume includes a pad stage yet to be determined. The stimulation will target zones 1 and 5 of the Nuiqsut reservoir in a 10 stage treatment using dynamic diversion (Bioballs). The expected surface treating pressure at a planned pump rate of 40 barrels per minute is 6800 psi. Maximum proppant concentration is 5 ppa per gallon. The Schlumberger YF125ST is a water based guar gel system with borate crosslinker. The chemical make-up of the YF125ST includes: Seawater base—983.75 gpt Clay Stabilizer—2 gpt Polymer—6.25 gpt Surfactant—2 gpt Crosslinker—6 gpt Oxidative Breaker—0.05 ppt 2. Remove SSSV sleeve and install wireline retrievable SSSV 3. Install live gaslift valves % Grp 4. Flowback well with gaslift. ,y 5. RDMO ODST-47. Rig Activity: Recompletion to Production String. 1. Rig up over ODST-47 2. Install BPV and nipple down tree. 3. Pull 4 %2"fracture stimulation string. 4. RIH w/ FSV assembly on DP with packer and set. rer—Irk` 5. Pressure test DP x 7-5/8"annulus to 2500 psi for 5 min. 6. POOH LD DP. 7. RIH w/ ESP completion w/Packer&Tubing Retrievable ScSSSV. 8. Space out and land tubing hanger. 9. RILDS and test both the upper and lower tubing hanger body seals to 5000psi. 10. Set BPV, ND BOPE, NU Production Tree 11. Replace BPV w/TWC & Test Production Tree void to 5000psi &recover TWC 12. Reverse circulate corrosion inhibited brine or diesel to freeze protect the well to—2000'TVD 13. Set packer and test annulus to 3500 psi for 30 min. Pioneer Natural Resources Last Revised: February 3rd,2011 ODST-47 Permit To Drill Page 9 of 12 Post Rig Operations: 1. Rig up slickline 2. Retrieve ball/rod assembly from the RHC-M plug body 3. Pull dummy valve from lower GLM, set%,"OV in same. 4. Retrieve RHCM plug body 5. Rig down slickline Pioneer Natural Resources Last Revised: February 3`d,2011 ODST-47 Permit To Drill Page 10 of 12 Casing Shoe Leak Off Test Procedure: 1. After testing BOPE, pick up the drilling assembly and RIH to the float collar. Circulate to consistent mud weight and rheology. 2. Shut in with the pipe rams and test the casing to the required test pressure. Record the volume of mud required and the corresponding pressures in 1/4 bbl increments. When the design pressure is reached shut in the well and record the shut in pressure for 30 minutes. 3. Bleed off pressure while taking returns to a calibrated tank and record volume recovered. 4. Drill out the shoe track. Drill 20 ft of new hole and circulate the hole clean with consistent mud weight in/out. Pull up into the casing shoe. 5. Perform a Leak Off Test(or Formation Integrity Test): • Calculate the required test pressure to reach leak off (or formation integrity test limit)with the actual mud weight and the estimated fracture EMW. • Plot the casing test data and the calculated leak off on appropriate scale coordinate paper. As a guide, use the data from the casing test to determine the approximate volume of mud required to reach the calculated LOT/FIT. • Shut the well in. R/U the test pump. • Bring the pump on line at 0.25—0.50 bpm. Maintain a constant rate. • Record the pressure for every 1/4 of a bbl pumped. • Continue pumping until the pressure vs. volume curve breaks over indicating leak off. Note: For FIT, do not take to leak off • Discontinue pumping and shut in the well. Record the shut in pressure in 1 minute increments for 10 minutes or until pressure shows stabilization. • Bleed off the pressure and record the volume of mud recovered. • Plot the data to determine the LOT/FIT pressure at the shoe as EMW. • Submit the test results to the Pioneer drilling engineer for distribution as required. Pioneer Natural Resources Last Revised: February 3rd,2011 ODST-47 Permit To Drill Page 11 of 12 ODST-47 Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE Well Control • Prior to drilling into the Torok, hold a pre-reservoir meeting to outline heightened awareness for kick detection and lost circulation. Hydrates and Shallow gas • No hydrates are expected in this area. Lost Circulation/Breathing/Formation Stability/Stuck Pipe Events • Breathing may be seen while drilling the Hue shale. Minimizing swab and surge on the formation is critical to reducing the impact of breathing in the wellbore. Breathing was seen in • the ODSN-40 well, but only after substantial time in trying to solve the lost circulation problems in the fault seen in and below the Torok Sands. • During the attempt to retrieve a fish from the ODSK-33 well, an un-centralized BHA got stuck from differential sticking across the Torok due to the increase in mud weight needed to hold back the shales below. Differential sticking indications were not noted with the drilling BHA and drill pipe. Kick Tolerance/Integrity Testing Kick Tolerance/Integrity Testing Summary Table Casing set/ Maximum Mud Weight Exp Pore Min LOT/FIT Interval Influx Volume Press 10-3/4" Surface/ Infinite 9.8 ppg 2148 12.5 ppg (LOT) 9-7/8 7-5/8" Intermediate/ Infinite 8.0-8.4 ppg 2167 12.5 ppg (FIT) 6-3/4" (-8.4 ppg via MPD) NOTE: All LOT/FIT will be taken with a minimum of 20-ft and a maximum of 50-ft of new hole drilled outside of the previous casing string Hydrogen Sulfide • The Oooguruk Drill Site is not designated as an H2S site, however Standard Operating Procedures for H2S precautions should be followed at all times. Faults • Sub-seismic faults with expected throws of 20-35' may be encountered. Losses may be • associated with these faults. • Consult the ODS data sheet for additional information (still in development) Pioneer Natural Resources Last Revised: February 3rd,2011 ODST-47 Permit To Drill Page 12 of 12 ODST-4'. 'rac String Completic - Planned Well Head: 9-5/8",5K,VetcoGray Tree: 4-1/2", 5K,Horizontal 0 O 0 Casing Item # Item MD (ft) TVD (ft) O D A 16" Conductor 158 158 B Su,..t. 10-3/4" 45.5# L-80 BTC, 9.95" ID Drift 9.875" 6,414 3,230 C .Lk. 7-5/8" 29.7# L-80 BTC-M, 6.875" ID 12,306 4,918 O3 —I D j b 4-1/2" 12.6# L-80 Hydril 521, 3.958" ID 12,106 4,895 0 E ii a 4-1/2" 12.6# L-80 Hydril 521, 3.958" ID 18,245 4,961 *Estimated TOC - 500'above Torok Upper Completion Item # Item MDrkb (ft) TVDrkb (ft) 1 VetcoGray Tubing Hanger 34 34 4O J 2 4-1/2" XXO Safety Valve Landing Nipple w/ Dummy Insert 2,588 2,000 3 GLM #1 Brou-1A GLM 4-1/2" x 1" TBD ■0■ 4 GLM #2 Brou-1A GLM 4-1/2" x 1" TBD 5 4 1/2" XNipple, 3.813" ID TBD 6 GLM #3 Brou-1A GLM 4-1/2" x 1" TBD 7 4 1/2" XN Nipple, 3.725" ID Nogo 10,000 4,370 8 4-1/2" ROC Gauge and Carrier 12,000 4,882 9 4-1/2" Ratcheting Muleshoe 12,149 4,900 0_1 End of Assembly 12,153 4,900 Lower Completion Item # Item MD (ft) TVD (ft) 10 WFT PBR Tie Back Sleeve 15ft 12,138 4,898 IIOI 11 WFT"NTH" Liner Top Pkr 12,153 4,900 12 WFT"PHR" Rotating Hyd Set Liner Hanger 12,156 4,901 8 I O _ 4-1/2" 12.60# L-80 Hydril Pupjt 4ft (Ported w/ 6 1/2 holes) 411) 13 spaced ever 200'from 7-5/8" shoe 14 Float Shoe (PLUGGED) 18,245 4,961 CO ! , End of Assembly 18,247 4,961 ® 0 C) -. 13 �_ 14 00 00 00 00 00 00 00 00 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 18245'MDrkb/4961'TVDrkb Date: Revision By: I Comments PIONEER --_- 12-8-2010 TWC Proposed Completion 2-4-2011 Alex Vaughan Update to Wp#11.a NA11 RRL RESOURCES ALAS(A ODS' 17 ESP Completion - Inned Well Head: 10-3/4",5K,VetcoGray of- / 1 ,..k:-x) er Tree: 2-7/8",5K, Horizontal -Na�. •� w�- • Casing O Item # Item MD (ft) TVD (ft) A 16" Conductor 158 158 O B 10-3/4" 45.5# L-80 BTC, 9.95" ID Drift 9.875" 6,414 3,230 C 7-5/8" 29.7# L-80 BTC-M, 6.875" ID 12,306 4,918 0 D 2-7/8" 6.4# L-80 IBT-Mod 12,106 4,895 E 4-1/2" 12.6# L-80 Hydril 521, 3.958" ID 18,245 4,961 *Estimated TOC- 500'above Torok U. .er Com•letion 2 O MDrkb (ft) TVDrkb k, 1 VetcoGray Tubing Hanger 34 34 ��,,�� 2 2-7/8" Wellstar Tubing Retreivable ScSSSV 2,588 2,000 O �J J 3 GLM #1 2-7/8" x 1-1/2" (min. 2 jts above top X nipple) 3,012 2,149 2-7/8" X Nipple 2.313" I.D. (min. 2 jts above Gas Vent ailO. 4 Valve Packer) 3,092 2,174 O WFT 7-5/8" x 2-7/8" Gas Vent Valve Packer(max. TVD 5 2200') 3,172 2,200 6 GLM #2-2-7/8" x 1-1/2" (min. 2 jts above X nipple) 9,920 4,345 2-7/8" X Nipple, 2.313" ID (max. incl. 72 deg)w/ RHC-M J 7 Plug Body 10,000 4,370 8 Automatic Divert Valve (ADV) 11,590 4,820 9 ESP (Pump, Motor, and Jewelry) 11,600 4,822 End of Assembly 11,660 4,833 au Upper Completion 1 c'.8YDO 10 WFT 7-5/8" x 3-1/2" Retrievable Packer12,073 4,891 O 11 WFT 3-1/2" Pressure Activated Sleeve 12,098 4,894 12 WFT 3-1/2" Formation Saver Valve 12,123 4,897 13 1 jt 3.5" TC-II and WLEG 12,133 4,898 O End of Assembly 12,168 4,902 Lower Completion Item # Item MD (ft) TVD(ft) 411 k,- 14 WFT PBR Tie Back Sleeve 15ft 12138 4,898 15 WFT"NTH" Liner Top Pkr 12153 4,900 ® 0 0 0 16 WFT"PHR" Rotating Hyd Set Liner Hanger 12156 4,901 4-1/2" 12.60# L-80 Hydril Pupjt 4ft (Ported w/ 6 1/2 holes) 13 17 spaced ever 200'from 7-5/8" shoe CO ;�. 18 Float Shoe (PLUGGED) 18245 4,961 O End of Assembly 18247 4,961 116 00 00 00 00 00 00 00 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4-'/2"Hydril 521 Liner w/ported pups w/swellable packers as required Date: Revision By: Comments PIONEER8/31/2010 Alex Vaughan Planned completion WP11 RESOURCES ^ Vp 12/8/2010 TWC Format Revision and Update NATII'^I I' l RESOURCESAI"SO 2-4-2011 Alex Vaughan Update to wp#11.a nn 0 cs co88 m 0 o �' a -I- —000 orS > ~ 1- �� o ro ` - M v�n m o O o 0 0 co 0) (0 3 O nag o > > > >> 0 v v m > - _ m m m coca > Z$$ d I- o 0 0 0o I- 0 Q m - - o Q' a i0 2 2 2 H 2 7 —IN ~a a H 0 0 0 0 H H m 0) cg:. 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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 I I I I I I I I I O } m p0� � $ g 0 $ 0og g g g gQ N( vv NU am /3 + iun le Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+ 13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+ 13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Project Oooguruk Development Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site Oooguruk Drill Site I Site Position: Northing: 6,031,151.32ft Latitude: 70°29'46.242 N From: Map Easting: 469,920.45ft Longitude: 150° 14'45.465 W Position Uncertainty: 0.00 ft Slot Radius: in Grid Convergence: -0.23 ? Well ODST-47-Slot ODS-47 Well Position +N/-S 0.00 ft Northing: 6,030,995.50 ft Latitude: 70°29'44.705 N +EI-W 0.00 ft Easting: 469,811.98 ft Longitude: 150° 14'48.639 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 13.50ft Wellbore ODST-47 Torok B Magnetics Model Name Sample Date Declination Dip Angle Field Strength (?) (?) (nT) IGRF200510 12/31/2009 21.99 80.81 57,759 Design ODST-47 Torok B wp11.a Audit Notes: Version: Phase: PLAN Tie On Depth: 42.70 Vertical Section: Depth From(TVD) +NI-S +E/-W Direction (ft) (ft) (ft) (?) 42.70 0.00 0.00 263.36 1/31/2011 2:38:29PM Page 2 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +NI-S +EI-W Rate Rate Rate Tool Face (ft) (?) (?) (ft) ft (ft) (ft) (?/100ft) (?/100ft) (?/100ft) (?) 42.70 0.00 0.00 42.70 -13.50 0.00 0.00 0.00 0.00 0.00 0.00 180.00 0.00 170.00 180.00 123.80 0.00 0.00 0.00 0.00 0.00 170.00 502.07 11.27 170.00 500.00 443.80 -31.10 5.48 3.50 3.50 0.00 170.00 680.36 11.27 200.00 675.00 618.80 -64.66 2.55 3.25 0.00 16.83 104.75 2,128.77 61.96 200.00 1,800.00 1,743.80 -850.26 -283.39 3.50 3.50 0.00 0.00 2,938.37 71.47 229.16 2,125.60 2,069.40 -1,449.23 -704.60 3.50 1.17 3.60 76.78 10,122.34 71.47 229.16 4,409.10 4,352.90 -5,903.09 -5,858.06 0.00 0.00 0.00 0.00 11,974.96 83.28 304.61 4,879.39 4,823.19 -5,963.57 -7,517.83 4.00 0.64 4.07 91.88 12,274.96 83.28 304.61 4,914.50 4,858.30 -5,794.36 -7,763.05 0.00 0.00 0.00 0.00 12,275.07 83.28 304.61 4,914.51 4,858.31 -5,794.30 -7,763.13 4.00 3.99 -0.27 0.00 12,502.89 83.28 304.61 4,941.16 4,884.96 -5,665.79 -7,949.36 0.00 0.00 0.00 0.00 12,952.69 90.87 319.09 4,964.20 4,908.00 -5,366.98 -8,282.73 3.63 1.69 3.22 62.84 12,958.46 91.04 319.08 4,964.10 4,907.90 -5,362.62 -8,286.51 3.00 3.00 -0.16 -3.06 14,969.65 91.04 319.08 4,927.53 4,871.33 -3,843.23 -9,603.71 0.00 0.00 0.00 0.00 15,128.02 86.30 319.33 4,931.20 4,875.00 -3,723.41 -9,707.12 3.00 -3.00 0.16 176.94 15,136.73 86.04 319.32 4,931.78 4,875.58 -3,716.82 -9,712.79 3.00 -3.00 -0.12 -177.67 16,002.61 86.04 319.32 4,991.63 4,935.43 -3,061.74 -10,275.84 0.00 0.00 0.00 0.00 16,134.82 90.00 319.48 4,996.20 4,940.00 -2,961.43 -10,361.82 3.00 3.00 0.12 2.33 16,138.42 89.90 319.52 4,996.20 4,940.00 -2,958.69 -10,364.15 3.00 -2.79 1.11 158.26 17,387.86 89.90 319.52 4,998.39 4,942.19 -2,008.31 -11,175.24 0.00 0.00 0.00 0.00 17,486.41 92.65 318.43 4,996.20 4,940.00 -1,933.99 -11,239.90 3.00 2.79 -1.11 -21.74 18,244.65 92.65 318.43 4,961.20 4,905.00 -1,367.36 -11,742.53 0.00 0.00 0.00 0.00 1/31/2011 2:38:29PM Page 3 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report I Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk ND Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) -13.50 42.70 0.00 0.00 42.70 -13.50 0.00 0.00 6,030,995.50 469,811.98 0.00 0.00 100.00 0.00 170.00 100.00 43.80 0.00 0.00 6,030,995.50 469,811.98 0.00 0.00 180.00 0.00 170.00 180.00 123.80 0.00 0.00 6,030,995.50 469,811.98 0.00 0.00 Start Dir 3.5°/100':180'MD,180'TVD:170°RT TF 200.00 0.70 170.00 200.00 143.80 -0.12 0.02 6,030,995.38 469,812.00 3.50 -0.01 300.00 4.20 170.00 299.89 243.69 -4.33 0.76 6,030,991.17 469,812.72 3.50 -0.26 400.00 7.70 170.00 399.34 343.14 -14.53 2.56 6,030,980.96 469,814.48 3.50 -0.86 500.00 11.20 170.00 497.97 441.77 -30.70 5.41 6,030,964.78 469,817.27 3.50 -1.83 502.07 11.27 170.00 500.00 443.80 -31.10 5.48 6,030,964.38 469,817.33 3.50 -1.85 502.10 11.27 170.00 500.03 443.83 -31.10 5.48 6,030,964.38 469,817.34 0.00 -1.85 Start Dir 3.25°/100':502.1 MD,500'TVD 600.00 10.90 186.51 596.12 539.92 -49.73 6.09 6,030,945.75 469,817.87 3.25 -0.30 680.36 11.27 200.00 675.00 618.80 -64.66 2.55 6,030,930.84 469,814.26 3.25 4.95 680.40 11.27 200.00 675.04 618.84 -64.67 2.54 6,030,930.83 469,814.26 0.00 4.95 Start Dir 3.5°/100':680.4'MD,675'TVD 700.00 11.96 200.00 694.23 638.03 -68.37 1.19 6,030,927.13 469,812.90 3.51 6.72 800.00 15.46 200.00 791.37 735.17 -90.64 -6.91 6,030,904.90 469,804.70 3.50 17.34 900.00 18.96 200.00 886.88 830.68 -118.43 -17.03 6,030,877.15 469,794.48 3.50 30.61 1,000.00 22.46 200.00 980.41 924.21 -151.65 -29.12 6,030,843.98 469,782.25 3.50 46.46 1,100.00 25.96 200.00 1,071.60 1,015.40 -190.18 -43.14 6,030,805.52 469,768.07 3.50 64.84 1,200.00 29.46 200.00 1,160.12 1,103.92 -233.86 -59.04 6,030,761.90 469,752.00 3.50 85.69 1,300.00 32.96 200.00 1,245.64 1,189.44 -282.55 -76.76 6,030,713.30 469,734.08 3.50 108.92 1,400.00 36.46 200.00 1,327.83 1,271.63 -336.04 -96.23 6,030,659.89 469,714.40 3.50 134.45 1,500.00 39.96 200.00 1,406.40 1,350.20 -394.15 -117.38 6,030,601.87 469,693.01 3.50 162.18 1,600.00 43.46 200.00 1,481.04 1,424.84 -456.66 -140.13 6,030,539.45 469,670.01 3.50 192.01 1,700.00 46.96 200.00 1,551.48 1,495.28 -523.34 -164.40 6,030,472.88 469,645.47 3.50 223.83 1,800.00 50.46 200.00 1,617.46 1,561.26 -593.93 -190.09 6,030,402.40 469,619.50 3.50 257.51 1,900.00 53.96 200.00 1,678.73 1,622.53 -668.18 -217.12 6,030,328.28 469,592.17 3.50 292.94 2,000.00 57.46 200.00 1,735.07 1,678.87 -745.80 -245.37 6,030,250.78 469,563.61 3.50 329.98 2,100.00 60.96 200.00 1,786.25 1,730.05 -826.51 -274.74 6,030,170.20 469,533.91 3.50 368.50 2,128.77 61.96 200.00 1,800.00 1,743.80 -850.26 -283.39 6,030,146.48 469,525.17 3.50 379.83 2,200.00 62.56 202.73 1,833.15 1,776.95 -908.96 -306.36 6,030,087.88 469,501.96 3.50 409.43 2,300.00 63.49 206.52 1,878.53 1,822.33 -989.95 -343.50 6,030,007.05 469,464.50 3.50 455.69 2,400.00 64.51 210.25 1,922.37 1,866.17 -1,069.00 -386.23 6,029,928.19 469,421.46 3.50 507.28 2,500.00 65.63 213.90 1,964.53 1,908.33 -1,145.82 -434.38 6,029,851.57 469,372.99 3.50 563.99 2,600.00 66.84 217.49 2,004.84 1,948.64 -1,220.11 -487.78 6,029,777.50 469,319.30 3.50 625.63 2,700.00 68.12 221.02 2,043.15 1,986.95 -1,291.62 -546.23 6,029,706.24 469,260.56 3.50 691.96 2,800.00 69.48 224.48 2,079.32 2,023.12 -1,360.06 -609.51 6,029,638.07 469,197.01 3.50 762.73 2,900.00 70.90 227.88 2,113.22 2,057.02 -1,425.18 -677.39 6,029,573.23 469,128.88 3.50 837.68 2,938.37 71.47 229.16 2,125.60 2,069.40 -1,449.23 -704.60 6,029,549.28 469,101.57 3.50 867.49 2,938.40 71.47 229.16 2,125.61 2,069.41 -1,449.25 -704.62 6,029,549.27 469,101.55 0.00 867.51 End Dir:2938.4'MD,2125.6'ND 3,000.00 71.47 229.16 2,145.19 2,088.99 -1,487.44 -748.81 6,029,511.26 469,057.21 0.00 915.82 3,100.00 71.47 229.16 2,176.97 2,120.77 -1,549.44 -820.54 6,029,449.56 468,985.24 0.00 994.25 3,200.00 71.47 229.16 2,208.76 2,152.56 -1,611.44 -892.28 6,029,387.86 468,913.26 0.00 1,072.67 1/31/2011 2:38:29PM Page 4 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk ND Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a i Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section 1 (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 2,177.94 3,279.85 71.47 229.16 2,234.14 2,177.94 -1,660.94 -949.56 6,029,338.60 468,855.78 0.00 1,135.30 Top West Sak 3,300.00 71.47 229.16 2,240.54 2,184.34 -1,673.43 -964.01 6,029,326.16 468,841.28 0.00 1,151.10 3,400.00 71.47 229.16 2,272.33 2,216.13 -1,735.43 -1,035.75 6,029,264.46 468,769.30 0.00 1,229.52 3,500.00 71.47 229.16 2,304.12 2,247.92 -1,797.43 -1,107.49 6,029,202.76 468,697.32 0.00 1,307.95 3,600.00 71.47 229.16 2,335.90 2,279.70 -1,859.43 -1,179.22 6,029,141.07 468,625.34 0.00 1,386.37 3,700.00 71.47 229.16 2,367.69 2,311.49 -1,921.42 -1,250.96 6,029,079.37 468,553.36 0.00 1,464.80 3,800.00 71.47 229.16 2,399.48 2,343.28 -1,983.42 -1,322.69 6,029,017.67 468,481.38 0.00 1,543.22 3,900.00 71.47 229.16 2,431.26 2,375.06 -2,045.42 -1,394.43 6,028,955.97 468,409.40 0.00 1,621.65 4,000.00 71.47 229.16 2,463.05 2,406.85 -2,107.41 -1,466.16 6,028,894.27 468,337.42 0.00 1,700.07 4,100.00 71.47 229.16 2,494.83 2,438.63 -2,169.41 -1,537.90 6,028,832.57 468,265.44 0.00 1,778.50 4,200.00 71.47 229.16 2,526.62 2,470.42 -2,231.41 -1,609.63 6,028,770.87 468,193.46 0.00 1,856.92 4,300.00 71.47 229.16 2,558.41 2,502.21 -2,293.41 -1,681.37 6,028,709.17 468,121.48 0.00 1,935.35 4,400.00 71.47 229.16 2,590.19 2,533.99 -2,355.40 -1,753.11 6,028,647.47 468,049.50 0.00 2,013.77 4,500.00 71.47 229.16 2,621.98 2,565.78 -2,417.40 -1,824.84 6,028,585.77 467,977.52 0.00 2,092.20 4,600.00 71.47 229.16 2,653.76 2,597.56 -2,479.40 -1,896.58 6,028,524.07 467,905.54 0.00 2,170.62 4,700.00 71.47 229.16 2,685.55 2,629.35 -2,541.39 -1,968.31 6,028,462.38 467,833.56 0.00 2,249.05 4,800.00 71.47 229.16 2,717.34 2,661.14 -2,603.39 -2,040.05 6,028,400.68 467,761.58 0.00 2,327.47 4,900.00 71.47 229.16 2,749.12 2,692.92 -2,665.39 -2,111.78 6,028,338.98 467,689.60 0.00 2,405.90 5,000.00 71.47 229.16 2,780.91 2,724.71 -2,727.39 -2,183.52 6,028,277.28 467,617.62 0.00 2,484.32 5,100.00 71.47 229.16 2,812.69 2,756.49 -2,789.38 -2,255.25 6,028,215.58 467,545.64 0.00 2,562.75 5,200.00 71.47 229.16 2,844.48 2,788.28 -2,851.38 -2,326.99 6,028,153.88 467,473.67 0.00 2,641.17 5,300.00 71.47 229.16 2,876.27 2,820.07 -2,913.38 -2,398.73 6,028,092.18 467,401.69 0.00 2,719.60 5,357.46 71.47 229.16 2,894.53 2,838.33 -2,949.00 -2,439.94 6,028,056.73 467,360.33 0.00 2,764.66 Tuffacious Shales 5,400.00 71.47 229.16 2,908.05 2,851.85 -2,975.38 -2,470.46 6,028,030.48 467,329.71 0.00 2,798.02 5,500.00 71.47 229.16 2,939.84 2,883.64 -3,037.37 -2,542.20 6,027,968.78 467,257.73 0.00 2,876.45 5,600.00 71.47 229.16 2,971.62 2,915.42 -3,099.37 -2,613.93 6,027,907.08 467,185.75 0.00 2,954.87 5,700.00 71.47 229.16 3,003.41 2,947.21 -3,161.37 -2,685.67 6,027,845.38 467,113.77 0.00 3,033.30 5,800.00 71.47 229.16 3,035.20 2,979.00 -3,223.36 -2,757.40 6,027,783.69 467,041.79 0.00 3,111.72 5,900.00 71.47 229.16 3,066.98 3,010.78 -3,285.36 -2,829.14 6,027,721.99 466,969.81 0.00 3,190.15 6,000.00 71.47 229.16 3,098.77 3,042.57 -3,347.36 -2,900.88 6,027,660.29 466,897.83 0.00 3,268.57 6,100.00 71.47 229.16 3,130.55 3,074.35 -3,409.36 -2,972.61 6,027,598.59 466,825.85 0.00 3,347.00 6,200.00 71.47 229.16 3,162.34 3,106.14 -3,471.35 -3,044.35 6,027,536.89 466,753.87 0.00 3,425.42 6,300.00 71.47 229.16 3,194.13 3,137.93 -3,533.35 -3,116.08 6,027,475.19 466,681.89 0.00 3,503.85 6,319.26 71.47 229.16 3,200.25 3,144.05 -3,545.29 -3,129.90 6,027,463.30 466,668.02 0.00 3,518.95 Hue 2 Tuff 6,400.00 71.47 229.16 3,225.91 3,169.71 -3,595.35 -3,187.82 6,027,413.49 466,609.91 0.00 3,582.27 6,414.24 71.47 229.16 3,230.44 3,174.24 -3,604.18 -3,198.03 6,027,404.70 466,599.66 0.00 3,593.44 10 3/4" 6,500.00 71.47 229.16 3,257.70 3,201.50 -3,657.34 -3,259.55 6,027,351.79 466,537.93 0.00 3,660.70 6,600.00 71.47 229.16 3,289.48 3,233.28 -3,719.34 -3,331.29 6,027,290.09 466,465.95 0.00 3,739.12 6,700.00 71.47 229.16 3,321.27 3,265.07 -3,781.34 -3,403.02 6,027,228.39 466,393.97 0.00 3,817.55 6,800.00 71.47 229.16 3,353.06 3,296.86 -3,843.34 -3,474.76 6,027,166.69 466,321.99 0.00 3,895.97 6,900.00 71.47 229.16 3,384.84 3,328.64 -3,905.33 -3,546.50 6,027,104.99 466,250.01 0.00 3,974.40 1/31/2011 2:38:29PM Page 5 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 3,360.43 7,000.00 71.47 229.16 3,416.63 3,360.43 -3,967.33 -3,618.23 6,027,043.30 466,178.03 0.00 4,052.82 7,100.00 71.47 229.16 3,448.42 3,392.22 -4,029.33 -3,689.97 6,026,981.60 466,106.05 0.00 4,131.25 7,200.00 71.47 229.16 3,480.20 3,424.00 -4,091.32 -3,761.70 6,026,919.90 466,034.07 0.00 4,209.67 7,300.00 71.47 229.16 3,511.99 3,455.79 -4,153.32 -3,833.44 6,026,858.20 465,962.10 0.00 4,288.10 7,400.00 71.47 229.16 3,543.77 3,487.57 -4,215.32 -3,905.17 6,026,796.50 465,890.12 0.00 4,366.52 7,500.00 71.47 229.16 3,575.56 3,519.36 -4,277.32 -3,976.91 6,026,734.80 465,818.14 0.00 4,444.95 7,600.00 71.47 229.16 3,607.35 3,551.15 -4,339.31 -4,048.64 6,026,673.10 465,746.16 0.00 4,523.37 7,700.00 71.47 229.16 3,639.13 3,582.93 -4,401.31 -4,120.38 6,026,611.40 465,674.18 0.00 4,601.80 7,800.00 71.47 229.16 3,670.92 3,614.72 -4,463.31 -4,192.12 6,026,549.70 465,602.20 0.00 4,680.22 7,900.00 71.47 229.16 3,702.70 3,646.50 -4,525.30 -4,263.85 6,026,488.00 465,530.22 0.00 4,758.65 8,000.00 71.47 229.16 3,734.49 3,678.29 -4,587.30 -4,335.59 6,026,426.30 465,458.24 0.004,837.07 8,100.00 71.47 229.16 3,766.28 3,710.08 -4,649.30 -4,407.32 6,026,364.61 465,386.26 0.00 4,915.50 8,200.00 71.47 229.16 3,798.06 3,741.86 -4,711.30 -4,479.06 6,026,302.91 465,314.28 0.00 4,993.92 8,300.00 71.47 229.16 3,829.85 3,773.65 -4,773.29 -4,550.79 6,026,241.21 465,242.30 0.00 5,072.35 8,400.00 71.47 229.16 3,861.63 3,805.43 -4,835.29 -4,622.53 6,026,179.51 465,170.32 0.00 5,150.77 8,500.00 71.47 229.16 3,893.42 3,837.22 -4,897.29 -4,694.27 6,026,117.81 465,098.34 0.00 5,229.20 8,600.00 71.47 229.16 3,925.21 3,869.01 -4,959.28 -4,766.00 6,026,056.11 465,026.36 0.00 5,307.62 8,700.00 71.47 229.16 3,956.99 3,900.79 -5,021.28 -4,837.74 6,025,994.41 464,954.38 0.00 5,386.05 8,800.00 71.47 229.16 3,988.78 3,932.58 -5,083.28 -4,909.47 6,025,932.71 464,882.40 0.00 5,464.47 8,900.00 71.47 229.16 4,020.56 3,964.36 -5,145.28 -4,981.21 6,025,871.01 464,810.42 0.00 5,542.90 9,000.00 71.47 229.16 4,052.35 3,996.15 -5,207.27 -5,052.94 6,025,809.31 464,738.44 0.00 5,621.32 9,100.00 71.47 229.16 4,084.14 4,027.94 -5,269.27 -5,124.68 6,025,747.61 464,666.46 0.00 5,699.75 9,200.00 71.47 229.16 4,115.92 4,059.72 -5,331.27 -5,196.41 6,025,685.92 464,594.48 0.00 5,778.17 9,300.00 71.47 229.16 4,147.71 4,091.51 -5,393.27 -5,268.15 6,025,624.22 464,522.51 0.00 5,856.60 9,358.71 71.47 229.16 4,166.37 4,110.17 -5,429.66 -5,310.27 6,025,587.99 464,480.25 0.00 5,902.64 Brook 2B 9,400.00 71.47 229.16 4,179.49 4,123.29 -5,455.26 -5,339.89 6,025,562.52 464,450.53 0.00 5,935.02 9,500.00 71.47 229.16 4,211.28 4,155.08 -5,517.26 -5,411.62 6,025,500.82 464,378.55 0.00 6,013.45 9,600.00 71.47 229.16 4,243.07 4,186.87 -5,579.26 -5,483.36 6,025,439.12 464,306.57 0.00 6,091.87 9,700.00 71.47 229.16 4,274.85 4,218.65 -5,641.25 -5,555.09 6,025,377.42 464,234.59 0.00 6,170.30 9,800.00 71.47 229.16 4,306.64 4,250.44 -5,703.25 -5,626.83 6,025,315.72 464,162.61 0.00 6,248.72 9,900.00 71.47 229.16 4,338.43 4,282.23 -5,765.25 -5,698.56 6,025,254.02 464,090.63 0.00 6,327.15 10,000.00 71.47 229.16 4,370.21 4,314.01 -5,827.25 -5,770.30 6,025,192.32 464,018.65 0.00 6,405.57 10,100.00 71.47 229.16 4,402.00 4,345.80 -5,889.24 -5,842.03 6,025,130.62 463,946.67 0.00 6,484.00 10,122.30 71.47 229.16 4,409.09 4,352.89 -5,903.07 -5,858.03 6,025,116.86 463,930.62 0.00 6,501.48 Start Dir 4°/100':10122.3'MD,4409.1'TVD 10,122.34 71.47 229.16 4,409.10 4,352.90 -5,903.09 -5,858.06 6,025,116.84 463,930.59 0.00 6,501.51 10,200.00 71.39 232.44 4,433.84 4,377.64 -5,949.61 -5,915.10 6,025,070.56 463,873.36 4.00 6,563.56 10,300.00 71.38 236.66 4,465.77 4,409.57 -6,004.56 -5,992.28 6,025,015.93 463,795.97 4.00 6,646.57 10,400.00 71.46 240.88 4,497.64 4,441.44 -6,053.69 -6,073.32 6,024,967.13 463,714.74 4.00 6,732.75 I 10,500.00 71.64 245.09 4,529.30 4,473.10 -6,096.76 -6,157.81 6,024,924.41 463,630.09 4.00 6,821.65 10,600.00 71.91 249.30 4,560.59 4,504.39 -6,133.56 -6,245.34 6,024,887.97 463,542.41 4.00 6,912.86 10,700.00 72.27 253.48 4,591.36 4,535.16 -6,163.92 -6,335.50 6,024,857.98 463,452.15 4.00 7,005.92 10,800.00 72.71 257.65 4,621.46 4,565.26 -6,187.68 -6,427.83 6,024,834.60 463,359.73 4.00 7,100.38 10,900.00 73.25 261.80 4,650.74 4,594.54 -6,204.73 -6,521.89 6,024,817.93 463,265.60 4.00 7,195.78 1/31/2011 2:38:29PM Page 6 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.20 Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.20 Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Planned Survey 1 Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-5 +E/-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 4,622.86 11,000.00 73.86 265.92 4,679.06 4,622.86 -6,214.98 -6,617.23 6,024,808.07 463,170.24 4.00 7,291.66 11,100.00 74.56 270.01 4,706.28 4,650.08 -6,218.39 -6,713.37 6,024,805.05 463,074.09 4.00 7,387.55 11,200.00 75.32 274.08 4,732.28 4,676.08 -6,214.94 -6,809.85 6,024,808.89 462,977.64 4.00 7,482.99 11,300.00 76.16 278.11 4,756.91 4,700.71 -6,204.65 -6,906.20 6,024,819.58 462,881.34 4.00 7,577.50 11,342.01 76.53 279.80 4,766.83 4,710.63 -6,198.29 -6,946.52 6,024,826.09 462,841.05 4.00 7,616.82 ODSN-46 Moraine B T1 11,400.00 77.07 282.12 4,780.07 4,723.87 -6,187.56 -7,001.94 6,024,837.05 462,785.67 4.00 7,670.63 11,500.00 78.03 286.09 4,801.64 4,745.44 -6,163.76 -7,096.63 6,024,861.23 462,691.10 4.00 7,761.92 11,600.00 79.05 290.04 4,821.52 4,765.32 -6,133.37 -7,189.78 6,024,892.00 462,598.08 4.00 7,850.93 11,700.00 80.12 293.96 4,839.60 4,783.40 -6,096.53 -7,280.95 6,024,929.21 462,507.07 4.00 7,937.22 I 11,800.00 81.24 297.85 4,855.80 4,799.60 -6,053.42 -7,369.69 6,024,972.67 462,418.52 4.00 8,020.39 11,900.00 82.39 301.72 4,870.04 4,813.84 -6,004.26 -7,455.57 6,025,022.18 462,332.84 4.00 8,100.01 11,974.96 83.28 304.61 4,879.39 4,823.19 -5,963.57 -7,517.83 6,025,063.11 462,270.76 4.00 8,157.14 11,975.00 83.28 304.61 4,879.40 4,823.20 -5,963.55 -7,517.86 6,025,063.13 462,270.73 0.00 8,157.16 End Dir: 11975'MD,4879.4'TVD 12,000.00 83.28 304.61 4,882.32 4,826.12 -5,949.45 -7,538.29 6,025,077.31 462,250.35 0.00 8,175.83 12,100.00 83.28 304.61 4,894.03 4,837.83 -5,893.04 -7,620.03 6,025,134.04 462,168.85 0.00 8,250.50 12,176.09 83.28 304.61 4,902.93 4,846.73 -5,850.13 -7,682.23 6,025,177.21 462,106.84 0.00 8,307.31 Top Torok 12,200.00 83.28 304.61 4,905.73 4,849.53 -5,836.64 -7,701.77 6,025,190.77 462,087.35 0.00 8,325.17 12,274.96 83.28 304.61 4,914.50 4,858.30 -5,794.36 -7,763.05 6,025,233.30 462,026.25 0.00 8,381.14 Top Torok B V10 test 12,275.00 83.28 304.61 4,914.50 4,858.30 -5,794.34 -7,763.08 6,025,233.32 462,026.22 0.00 8,381.17 Start Dir 4°/100': 12275'MD,4914.5'TVD 12,275.07 83.28 304.61 4,914.51 4,858.31 -5,794.30 -7,763.13 6,025,233.36 462,026.16 4.00 8,381.22 , 12,275.10 83.28 304.61 4,914.52 4,858.32 -5,794.28 -7,763.16 6,025,233.38 462,026.14 0.00 8,381.24 End Dir:12275.1'MD,4914.5'TVD 12,300.00 83.28 304.61 4,917.43 4,861.23 -5,780.23 -7,783.51 6,025,247.50 462,005.84 0.00 8,399.84 12,306.09 83.28 304.61 4,918.14 4,861.94 -5,776.80 -7,788.49 6,025,250.96 462,000.88 0.00 8,404.38 7-5/8" 12,400.00 83.28 304.61 4,929.12 4,872.92 -5,723.83 -7,865.26 6,025,304.23 461,924.34 0.00 8,474.51 12,500.00 83.28 304.61 4,940.82 4,884.62 -5,667.43 -7,947.00 6,025,360.96 461,842.84 0.00 8,549.17 12,502.89 83.28 304.61 4,941.16 4,884.96 -5,665.79 -7,949.36 6,025,362.60 461,840.48 0.00 8,551.33 12,502.90 83.28 304.61 4,941.16 4,884.96 -5,665.79 -7,949.37 6,025,362.61 461,840.47 0.00 8,551.34 Start Dir 3.63°/100':12502.9'MD,4941.2'TVD 12,600.00 84.90 307.75 4,951.15 4,894.95 -5,608.78 -8,027.31 6,025,419.93 461,762.77 3.63 8,622.17 12,621.49 85.26 308.45 4,952.99 4,896.79 -5,595.57 -8,044.16 6,025,433.21 461,745.97 3.63 8,637.38 Top Torok B V10 1 12,700.00 86.58 310.98 4,958.58 4,902.38 -5,545.54 -8,104.40 6,025,483.48 461,685.95 3.63 8,691.42 12,712.18 86.79 311.37 4,959.28 4,903.08 -5,537.53 -8,113.55 6,025,491.52 461,676.83 3.63 8,699.58 Mid Torok 12,800.00 88.28 314.19 4,963.06 4,906.86 -5,477.95 -8,177.94 6,025,551.36 461,612.69 3.63 8,756.65 12,900.00 89.97 317.40 4,964.59 4,908.39 -5,406.28 -8,247.64 6,025,623.30 461,543.29 3.63 8,817.60 12,952.69 90.87 319.09 4,964.20 4,908.00 -5,366.98 -8,282.73 6,025,662.74 461,508.36 3.63 8,847.90 Torok BV10T1 1/31/2011 2:38:29PM Page 7 COMPASS 2003.16 Build 428 • Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7+ 13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+ 13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +EI-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 4,908.00 12,952.70 90.87 319.09 4,964.20 4,908.00 -5,366.97 -8,282.74 6,025,662.75 461,508.36 0.00 8,847.91 Start Dir 3°/100':12952.7'MD,4964.2'TVD 12,958.46 91.04 319.08 4,964.10 4,907.90 -5,362.62 -8,286.51 6,025,667.11 461,504.60 3.00 8,851.15 12,958.50 91.04 319.08 4,964.10 4,907.90 -5,362.59 -8,286.53 6,025,667.14 461,504.58 0.00 8,851.17 End Dir:12958.5'MD,4964.1'TVD 13,000.00 91.04 319.08 4,963.35 4,907.15 -5,331.24 -8,313.71 6,025,698.60 461,477.53 0.00 8,874.55 13,100.00 91.04 319.08 4,961.53 4,905.33 -5,255.69 -8,379.21 6,025,774.41 461,412.35 0.00 8,930.86 13,200.00 91.04 319.08 4,959.71 4,903.51 -5,180.15 -8,444.70 6,025,850.21 461,347.17 0.00 8,987.18 13,300.00 91.04 319.08 4,957.89 4,901.69 -5,104.60 -8,510.19 6,025,926.01 461,281.99 0.00 9,043.49 13,400.00 91.04 319.08 4,956.07 4,899.87 -5,029.05 -8,575.69 6,026,001.82 461,216.81 0.00 9,099.81 13,500.00 91.04 319.08 4,954.25 4,898.05 -4,953.51 -8,641.18 6,026,077.62 461,151.63 0.00 9,156.13 13,600.00 91.04 319.08 4,952.44 4,896.24 -4,877.96 -8,706.68 6,026,153.43 461,086.45 0.00 9,212.44 13,700.00 91.04 319.08 4,950.62 4,894.42 -4,802.41 -8,772.17 6,026,229.23 461,021.27 0.00 9,268.76 13,800.00 91.04 319.08 4,948.80 4,892.60 -4,726.87 -8,837.66 6,026,305.04 460,956.09 0.00 9,325.07 13,900.00 91.04 319.08 4,946.98 4,890.78 -4,651.32 -8,903.16 6,026,380.84 460,890.91 0.00 9,381.39 14,000.00 91.04 319.08 4,945.16 4,888.96 -4,575.77 -8,968.65 6,026,456.64 460,825.73 0.00 9,437.70 14,100.00 91.04 319.08 4,943.34 4,887.14 -4,500.23 -9,034.14 6,026,532.45 460,760.55 0.00 9,494.02 14,200.00 91.04 319.08 4,941.52 4,885.32 -4,424.68 -9,099.64 6,026,608.25 460,695.37 0.00 9,550.34 14,300.00 91.04 319.08 4,939.70 4,883.50 -4,349.13 -9,165.13 6,026,684.06 460,630.19 0.00 9,606.65 14,400.00 91.04 319.08 4,937.89 4,881.69 -4,273.59 -9,230.62 6,026,759.86 460,565.01 0.00 9,662.97 14,500.00 91.04 319.08 4,936.07 4,879.87 -4,198.04 -9,296.12 6,026,835.67 460,499.83 0.00 9,719.28 14,600.00 91.04 319.08 4,934.25 4,878.05 -4,122.49 -9,361.61 6,026,911.47 460,434.65 0.00 9,775.60 14,700.00 91.04 319.08 4,932.43 4,876.23 -4,046.95 -9,427.10 6,026,987.27 460,369.47 0.00 9,831.92 14,800.00 91.04 319.08 4,930.61 4,874.41 -3,971.40 -9,492.60 6,027,063.08 460,304.29 0.00 9,888.23 14,900.00 91.04 319.08 4,928.79 4,872.59 -3,895.85 -9,558.09 6,027,138.88 460,239.11 0.00 9,944.55 14,969.65 91.04 319.08 4,927.53 4,871.33 -3,843.23 -9,603.71 6,027,191.68 460,193.71 0.00 9,983.77 14,969.70 91.04 319.08 4,927.52 4,871.32 -3,843.20 -9,603.74 6,027,191.72 460,193.68 0.00 9,983.80 Start Dir 3°/100': 14969.7'MD,4927.5'TVD 15,000.00 90.13 319.13 4,927.21 4,871.01 -3,820.30 -9,623.58 6,027,214.70 460,173.94 3.00 10,000.86 15,100.00 87.14 319.29 4,929.60 4,873.40 -3,744.62 -9,688.89 6,027,290.63 460,108.95 3.00 10,056.97 15,128.02 86.30 319.33 4,931.20 4,875.00 -3,723.41 -9,707.12 6,027,311.91 460,090.80 3.00 10,072.63 Torok B V10 T2 15,136.70 86.04 319.32 4,931.78 4,875.58 -3,716.84 -9,712.77 6,027,318.50 460,085.18 3.00 10,077.48 End Dir:15136.7'MD,4931.8'TVD 15,136.73 86.04 319.32 4,931.78 4,875.58 -3,716.82 -9,712.79 6,027,318.53 460,085.16 3.00 10,077.50 15,200.00 86.04 319.32 4,936.16 4,879.96 -3,668.95 -9,753.93 6,027,366.56 460,044.22 0.00 10,112.83 15,300.00 86.04 319.32 4,943.07 4,886.87 -3,593.30 -9,818.96 6,027,442.47 459,979.50 0.00 10,168.67 15,400.00 86.04 319.32 4,949.98 4,893.78 -3,517.64 -9,883.98 6,027,518.38 459,914.79 0.00 10,224.51 15,500.00 86.04 319.32 4,956.89 4,900.69 -3,441.99 -9,949.01 6,027,594.29 459,850.08 0.00 10,280.35 15,600.00 86.04 319.32 4,963.80 4,907.60 -3,366.33 -10,014.04 6,027,670.20 459,785.36 0.00 10,336.19 15,700.00 86.04 319.32 4,970.71 4,914.51 -3,290.68 -10,079.07 6,027,746.11 459,720.65 0.00 10,392.03 15,800.00 86.04 319.32 4,977.63 4,921.43 -3,215.02 -10,144.09 6,027,822.02 459,655.94 0.00 10,447.87 15,854.32 86.04 319.32 4,981.38 4,925.18 -3,173.92 -10,179.42 6,027,863.26 459,620.79 0.00 10,478.20 Lower Torok 15,900.00 86.04 319.32 4,984.54 4,928.34 -3,139.37 -10,209.12 6,027,897.93 459,591.23 0.00 10,503.71 1/31/2011 2:38:29PM Page 8 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+ 13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+ 13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +EI-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) ,,;, (ft) 4,935.25 16,000.00 86.04 319.32 4,991.45 4,935.25 -3,063.71 -10,274.15 6,027,973.84 459,526.51 0.00 10,559.55 16,002.60 86.04 319.32 4,991.63 4,935.43 -3,061.74 -10,275.84 6,027,975.82 459,524.83 0.00 10,561.00 Start Dir 3°/100':16002.6'MD,4991.6'TVD 16,002.61 86.04 319.32 4,991.63 4,935.43 -3,061.74 -10,275.84 6,027,975.82 459,524.83 0.00 10,561.01 16,100.00 88.96 319.44 4,995.88 4,939.68 -2,987.89 -10,339.18 6,028,049.92 459,461.79 3.00 10,615.38 16,134.82 90.00 319.48 4,996.20 4,940.00 -2,961.43 -10,361.82 6,028,076.47 459,439.27 3.00 10,634.80 Torok BV10T3 16,138.40 89.90 319.52 4,996.20 4,940.00 -2,958.71 -10,364.14 6,028,079.20 459,436.96 3.00 10,636.79 End Dir: 16138.4'MD,4996.2'TVD 16,138.42 89.90 319.52 4,996.20 4,940.00 -2,958.69 -10,364.15 6,028,079.21 459,436.95 3.00 10,636.80 16,200.00 89.90 319.52 4,996.31 4,940.11 -2,911.85 -10,404.13 6,028,126.21 459,397.17 0.00 10,671.09 16,300.00 89.90 319.52 4,996.49 4,940.29 -2,835.79 -10,469.04 6,028,202.53 459,332.56 0.00 10,726.78 16,400.00 89.90 319.52 4,996.66 4,940.46 -2,759.72 -10,533.96 6,028,278.85 459,267.96 0.00 10,782.46 16,500.00 89.90 319.52 4,996.84 4,940.64 -2,683.66 -10,598.88 6,028,355.17 459,203.36 0.00 10,838.14 16,600.00 89.90 319.52 4,997.01 4,940.81 -2,607.60 -10,663.79 6,028,431.49 459,138.76 0.00 10,893.82 16,700.00 89.90 319.52 4,997.19 4,940.99 -2,531.53 -10,728.71 6,028,507.81 459,074.16 0.00 10,949.51 16,800.00 89.90 319.52 4,997.36 4,941.16 -2,455.47 -10,793.62 6,028,584.13 459,009.56 0.00 11,005.19 16,900.00 89.90 319.52 4,997.54 4,941.34 -2,379.40 -10,858.54 6,028,660.45 458,944.96 0.00 11,060.87 17,000.00 89.90 319.52 4,997.71 4,941.51 -2,303.34 -10,923.46 6,028,736.77 458,880.36 0.00 11,116.55 17,100.00 89.90 319.52 4,997.89 4,941.69 -2,227.27 -10,988.37 6,028,813.09 458,815.76 0.00 11,172.24 17,200.00 89.90 319.52 4,998.06 4,941.86 -2,151.21 -11,053.29 6,028,889.41 458,751.16 0.00 11,227.92 17,300.00 89.90 319.52 4,998.24 4,942.04 -2,075.14 -11,118.21 6,028,965.73 458,686.56 0.00 11,283.60 17,387.86 89.90 319.52 4,998.39 4,942.19 -2,008.31 -11,175.24 6,029,032.79 458,629.80 0.00 11,332.52 17,387.90 89.90 319.52 4,998.39 4,942.19 -2,008.28 -11,175.27 6,029,032.82 458,629.78 0.00 11,332.55 Start Dir 3°/100':17387.9'MD,4998.4'TVD 17,400.00 90.24 319.39 4,998.37 4,942.17 -1,999.09 -11,183.13 6,029,042.04 458,621.95 3.01 11,339.30 17,486.40 92.65 318.43 4,996.20 4,940.00 -1,934.00 -11,239.90 6,029,107.35 458,565.45 3.00 11,388.15 End Dir:17486.4'MD,4996.2'TVD 17,486.41 92.65 318.43 4,996.20 4,940.00 -1,933.99 -11,239.90 6,029,107.36 458,565.45 3.00 11,388.16 Torok B V10 T4 17,500.00 92.65 318.43 4,995.57 4,939.37 -1,923.83 -11,248.91 6,029,117.55 458,556.48 0.00 11,395.93 1 BLACK Fault 17,600.00 92.65 318.43 4,990.96 4,934.76 -1,849.10 -11,315.20 6,029,192.54 458,490.50 0.00 11,453.13 17,700.00 92.65 318.43 4,986.34 4,930.14 -1,774.38 -11,381.49 6,029,267.54 458,424.53 0.00 11,510.33 17,800.00 92.65 318.43 4,981.72 4,925.52 -1,699.65 -11,447.78 6,029,342.53 458,358.55 0.00 11,567.53 17,900.00 92.65 318.43 4,977.11 4,920.91 -1,624.92 -11,514.07 6,029,417.52 458,292.57 0.00 11,624.73 18,000.00 92.65 318.43 4,972.49 4,916.29 -1,550.19 -11,580.36 6,029,492.51 458,226.59 0.00 11,681.93 18,100.00 92.65 318.43 4,967.88 4,911.68 -1,475.46 -11,646.65 6,029,567.50 458,160.61 0.00 11,739.13 18,200.00 92.65 318.43 4,963.26 4,907.06 -1,400.73 -11,712.93 6,029,642.49 458,094.64 0.00 11,796.33 18,244.60 92.65 318.43 4,961.20 4,905.00 -1,367.40 -11,742.50 6,029,675.93 458,065.21 0.00 11,821.84 Total Depth: 18244.6'MD,4961.2'TVD 18,244.65 92.65 318.43 4,961.20 4,905.00 -1,367.36 -11,742.53 6,029,675.97 458,065.18 0.00 11,821.87 Torok BV10T5 1/31/2011 2:38:29PM Page 9 COMPASS 2003.16 Build 42B Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +N/-S +EI-W Northing Easting -Shape (?) (?) (ft) (ft) (ft) (ft) (ft) Torok b\./1U 1 o 0.00 0.00 4,961.20 -1,367.36 -11,742.53 6,029,675.97 458,065.18 -plan hits target -Point Torok B V10 T2 0.00 0.00 4,931.20 -3,723.41 -9,707.12 6,027,311.91 460,090.80 -plan hits target -Point Torok B V10 T1 0.00 0.00 4,964.20 -5,366.98 -8,282.73 6,025,662.74 461,508.36 -plan hits target -Point ODSN-46 Moraine B T1 0.00 0.00 4,916.20 -6,949.41 -7,044.45 6,024,075.45 462,740.08 -plan misses by 772.07ft at 11342.01ft MD(4766.83 TVD,-6198.29 N,-6946.52 E) -Point Torok B V10 T3 0.00 0.00 4,996.20 -2,961.43 -10,361.82 6,028,076.47 459,439.27 -plan hits target -Point Top Torok B V10 test 0.00 0.01 4,914.50 -5,794.36 -7,763.05 6,025,233.30 462,026.25 -plan hits target -Point Torok B V10 T4 0.00 0.00 4,996.20 -1,933.99 -11,239.90 6,029,107.36 458,565.45 I -plan hits target -Point Top Torok B V10 0.00 0.01 4,914.50 -5,614.00 -8,063.00 6,025,414.85 461,727.06 -plan misses by 46.65ft at 12621.49ft MD(4952.99 TVD,-5595.57 N,-8044.16 E) -Point Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 6,414.24 3,230.44 10 3/4" 10.750 13.500 12,306.09 4,918.14 7-5/8" 7.625 8.750 18,244.65 4,961.20 4 1/2" 4.500 6.125 Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction (ft) (ft) ft Name Lithology (?) (?) 5,357.46 2,894.53 Tuffacious Shales 0.00 9,358.71 4,166.37 Brook 2B 0.00 15,854.32 4,981.38 Lower Torok 0.00 3,279.85 2,234.14 Top West Sak 0.00 6,319.26 3,200.25 Hue 2 Tuff 0.00 12,712.18 4,959.28 Mid Torok 0.00 12,176.09 4,902.93 Top Torok 0.00 17,500.00 4,995.57 BLACK Fault 0.00 1/31/2011 2:38:29PM Page 10 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODST-47-Slot ODS-47 Company: Well Planning-Pioneer-Oooguruk ND Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Project: Oooguruk Development MD Reference: 42.7'+13.5'(copy)(copy)(copy)(copy)@ 56.2C Site: Oooguruk Drill Site North Reference: True Well: ODST-47 Survey Calculation Method: Minimum Curvature Wellbore: ODST-47 Torok B Design: ODST-47 Torok B wp11.a Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 180.00 180.00 0.00 0.00 Start Dir 3.5°/100':180'MD,180'TVD: 170°RT TF 502.10 500.03 -31.10 5.48 Start Dir 3.25°/100':502.1'MD,500'TVD 680.40 675.04 -64.67 2.54 Start Dir 3.5°/100':680.4'MD,675'TVD 2,938.40 2,125.61 -1,449.25 -704.62 End Dir:2938.4'MD,2125.6'TVD 10,122.30 4,409.09 -5,903.07 -5,858.03 Start Dir 4°/100': 10122.3'MD,4409.1'TVD 11,975.00 4,879.40 -5,963.55 -7,517.86 End Dir: 11975'MD,4879.4'TVD 12,275.00 4,914.50 -5,794.34 -7,763.08 Start Dir 4°/100': 12275'MD,4914.5'TVD 12,275.10 4,914.52 -5,794.28 -7,763.16 End Dir: 12275.1'MD,4914.5'TVD 12,502.90 4,941.16 -5,665.79 -7,949.37 Start Dir 3.63°/100': 12502.9'MD,4941.2'TVD 12,952.70 4,964.20 -5,366.97 -8,282.74 Start Dir 3°/100': 12952.7'MD,4964.2'TVD 12,958.50 4,964.10 -5,362.59 -8,286.53 End Dir: 12958.5'MD,4964.1'TVD 14,969.70 4,927.52 -3,843.20 -9,603.74 Start Dir 3°/100': 14969.7'MD,4927.5'TVD 15,136.70 4,931.78 -3,716.84 -9,712.77 End Dir: 15136.7'MD,4931.8'TVD 16,002.60 4,991.63 -3,061.74 -10,275.84 Start Dir 3°/100': 16002.6'MD,4991.6'TVD 16,138.40 4,996.20 -2,958.71 -10,364.14 End Dir: 16138.4'MD,4996.2'TVD 17,387.90 4,998.39 -2,008.28 -11,175.27 Start Dir 3°/100': 17387.9'MD,4998.4'TVD 17,486.40 4,996.20 -1,934.00 -11,239.90 End Dir: 17486.4'MD,4996.2'TVD 18,244.60 4,961.20 -1,367.40 -11,742.50 Total Depth: 18244.6'MD,4961.2'TVD 1/31/2011 2:38:29PM Page 11 COMPASS 2003.16 Build 42B • u 0 II 3 C M O J J t Q 0 I a Z L 0 c L N O 0 O O N o11111011 I CI)c o• v — a o 0 L w O ,- O w o A� cc CO 0 R 1° O W (1) t O Z o Z O ,,- G 0 '+o m 4 O N y• 0 N j N 3 ■— a� O a N a. 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I- ♦ PI— , .1 . r .w . 1:i I PI—, g P1-19 z s Air I ITi — BuF. � / sv � Basis of Locotion // r:, Basis West Monument ,z lit Coordinates P; N 6001016.61 ' • ' �- E 498081.23 -STAKED PI INFORMATION ONLY p * I " -' 1 a u . r Ref. Lownsbury & Assoc. r•••c0 \ I D '..( c Drawing No. Cr Cr -..- f NSK 6.01-d672 s Of A k '% pi'V .••• •••., , � , r ..10-0* e �, ilip G.Davis :Icc" I ;'"OV • % S• No.4110-S .J`" , v" • %‘ZOFESsiON PA-k* do Pioneer Natural Resouces JOB NAME: Oooguruk Drill Site Conductors DRAWN BY: BL CHECKED BY: MJD LOCATION: Protracted Section 11 SCALE: N/A Township 13 North Range 7 East DATE: 7-12-07 Umiat Meridian NANUQ JOB NO. SHEET DESCRIPTION: Basis of Location 05204 2 of 4 1 Line Offset Well No. --- ---------- Latitude (N) Longitude (VV) -- --_ _ Pad Elev, Y X FSL FEL 1 6,031,151.32 4-09,920,45 70-29 46 24160 15-0-71-4-4-5,464.68 3035 1077 13,50 2 6,031,146,35 469,915.52 70 29 46,19252 -150 14 45,60922 2030 1082 13,50 3 6,031,141,39 469,910,59 70 2246,14354 150 14 ..4.5.75375 3025 1087 13.50 4 6,031,136.46 469905,67 70 29 46.09485 15014 45,897993020 1092 13.50 5 6,031--,1-117,45- 469,900,74 70 29 46.04538 150 14 46.04252-.6015 1097 13,50 6 0,031,126,51 469,895.80 70 29 45,99660 150 14 46,18735 3010 1102 13,50 7- 0,031,113,7a--469,003,13 70 29 45,87030 150 14 46,55879 2997 1115 13,50 8 0,031,108.73 -4-69,87621 70 29 45,82102 150 14 467=3 2992 1120 13,50 9 6,0-31-103-15 -469,873--,26 70 29 45.7718.4. 150 14 46.84814 2907 1125 13.50 10 6,031,098,79 469,868,36 70 29 45,72286 150 14 46.99179 2962 1130 13,50 11 6,031,093.84 469,863 39 70 29 45,67398 150 14 47,13750 2977 1135 13.50 12 6,031,088-87 469,858.47 70 29 45.62490 150 14 47,28174 2972 1140 13,50 13 6,031,076.06 469,845,81 70 29 45.49840 150 14 47.65288 2960 1152 13,50 14 6,031,071,09 469,840.67 70 29 45.44932 1-50--1-4-47,79770 2955 1157 13,50 15 0,031,066.15 469,835 96 70 29 45.40053 150 T447,94165 2950 1102 13.50 16 -6,031,061.16 469,831,04 7029 45 35145 150 14 48,08568 2945 1167 13,50 17 6,031,056.25 469,826 11 7029 45,30277 150 14 48 23042 2940 1172 13.50 15 6,031,051.27 469,821,18 70 29 45,25359 150 14 46,37496- 2935 1177 13.50 19 0,031,038.52 469,808.50 70 29 45.12768 150 14 48,74668 2922 1189 13,50-- 20 0,031,033,50 469,803.59 70 29 45.07811 150 14..48.89061 2917 1194 13,50 21 6,031,028.53 469,798.62 70 29 45.02903 150 14 49,03632 2912 1199 13,50 22 6,031,023,58 469,793,67 70 29 44.98014 150 14 49,18144 2907 1204 13,50 23 -6,031,018.57 469,788,76 70 29 44,93067 150 14 49,32537 2902 1209 13.50 24 0,0)1,013.0Y 469,783,84 - 70 29 44,88159 150 14 49.46960 2897 1214 13,50 "1 OF 44 lig '_/i �� V V r of r - m . Philip G.Davis : o • w. • s�% No.4110-5 .:QJ'" "'",7,.' �II9Fp8 • '•P!� Jr►s� ,' Notes: 1, Elevotions are based on 9P Mcgn sea Level. 2, Coordinates ore based on Alcskc $tote 'lane Nod 27, Zone 4, 3, Alt conductors ore within Pr:trdoted Section 11. Pioneer Neturol Resouoes JOB NAME: Oooguruk Drill site Conductors DRAWN BY: 8L CHECKED EY: Kit) LOCATION; Protracted section 11 SCALE' N/A Township 13 North RQnge 7 cost DATE: 7=12-07 Umiot Meridian NANUC JOB NO. SHEET DESCRIPTION: As�built Coordinates 06204 3 of 4 Alaska State Plane Section Line Offset Well No. Y X Latitude (N) Longitude (W) FSL FEL Pad Elev. 25 6,031,128.32 469,943.64 70 29 46.01630 150 14 44.77930 3013 1055 13.50 26 6,031,123.35 469,938.69 70 29 45.96722 150 14 44.92442 3008 1060 13.50 27 6,031,118.33 469,933.76 70 29 45.91765 150 14 45.06895 300 1065 13.50 28 6,031,113.39 469,928.86 70 29 45.86887 150 14 45.21260 2997 1070 13.50 29 6,031,108.44 469,923.95 . 70 29 45.81999 150 14 45.35655 2992 1075 13.50 30 6,031,103.45 469,919.01 70 29 45.77071 150 14 45.50137 2988 1079 13.50 31 6,031,090.65 469,906.38 70 29 45.64431 150 14 45.87163 2975 1092 13.50 32 6,031,085.68 469,901.39 _ 70 29 45.59523 150 14 46.01793 2970 1097 13.50 33 6,031,080.67 469,896.50 70 29 45.54576 150 14 46.16128 2965 1102 13.50 34 6,031,075.73 469,891.57 70 29 45.49698 150 14 46.30581 2960 1106 13.50 35 6,031,070.76 469,886.60 70 29 45.44789 150 14 46.45152 2955 1111 13.50 36 6,031,065.83 469,881.69 70 29 45.39921 150 14 46.59547 2950 1116 13.50 37 6,031,053.00 469,869.00 70 29 45.27251 150 14 46.96749 2937 1129 13.50 38 6,031,047.99 469,864.14 70 29 45.22304 150 14 47.10995 2932 1134 13.50 39 6,031,043.03 469,859.20 70 29 45.17406 150 14 47.25478 2927 1139 13.50 40 6,031,038.10 469,854.21 70 29 45.12537 150 14 47.40108 2922 1144 13.50 41 6,031,033.05 469,849.29 70 29 45.07551 150 14 47.54530 2917 1149 13.50 42 6,031,028.13 469,844.38 70 29 45.02692 150 14 47.68925 2912 1154 13.50 43 6,031,015.46 469,831.70 70 29 44.90180 150 14 48.06099 2899 1166 13.50 44 6,031,010.49 469,826.79 70 29 44.85272 150 14 48.20493 2894 1171 13.50 45 6,031,005.53 469,821.86 70 29 44.80373 150 14 48.34946 2889 1176 13.50 46 6,031,000.54 469,816.94 70 29 44.75446 150 14 48.49369 2884 1181 13.50 -.-> 47 6,030,995.50 469,811.98 70 29 44.70469 150 14 48.63910 2879 1186 13.50 48 6,030,990.58 469,807.07 70 29 44.65610 150 14 48.78304 2874 1191 13.50 ,o ..„,...-%•101q. 0 SURVEYOR'S CERTIFICATE ,:,,;74.0 4Q� «•...`..-1.:34.111� I HEREBY CERTIFY THAT I AM "'co ,4 % i PROPERLY REGISTERED AND f i+4' �' t+ `d LICENSED TO PRACTICE LAND i"• i; ` "'.f SURVEYING IN THE STATE OF ' � ,.`�--:-`` , a. . / ALASKA AND THAT THIS PLAT .,it �t .E� • "ingoG.Davi 0 1 REPRESENTS A SURVEY DONE BY 'k "`; .� j + .f`.; 's„% No.4110.5 :., ME OR UNDER MY SUPERVISION it5 i''I :"�`77. ,'z:` TO ,���Fo•`'`•...•...••'�oSJ� AND THAT I BELIEVE THAT ALL F ,1r k 5� _ . * p DIMENSIONS AND OTHER DETAILS Fs + ,, 4` blioi"'N'1��m ARE CORRECT AS SUBMITTED TO N= °- ME BY NANUQ, INC. AS OF JULY 12TH, 2007. Pioneer Natural Resouces JOB NAME: Oooguruk Drill Site Conductors DRAWN BY: BL CHECKED BY: MJD. LOCATION: Protracted Section 11 SCALE: N/A Township 13 North Range 7 East DATE: 7-12-07 Umiat Meridian NANUQ JOB NO. SHEET DESCRIPTION: As-built Coordinates 05204 4 of 4 I Davies, Stephen F (DOA) From: Davies, Stephen F (DOA) Sent: Tuesday, February 22, 2011 1:40 PM To: 'Hoffman, Dale' Subject: RE: Torok well plots Dale, Spacing exceptions are based on the portion of the well(s) open to the pool. 45 A has been drilled, and it is the first well in the NW 1/4 of Section 15. Two separate spacing exceptions are needed, one for 46 and one for 47: 1) 46 is being drilled. It will be the second well open to the Torok in the NW 1/4 of Section 15, so a spacing exception is needed for 46 as it is the second well drilled to and completed in the Torok in this same governmental quarter section, a violation of the statewide spacing rule (only one oil-related well–producer or injector—can be open to the same pool in a governmental quarter section). 46 also appears to be less than 1000 feet away from 45A in the Torok, so this is the second reason that 46 needs a spacing exception (see 20 AAC 25.055(a)(3)). Note that 46 will be the first well open to the Torok in the SE 1/4 of Section 9. 2) 47 will be drilled after 46. That makes 47 the third well in the NW 1/4 of Section 15, and it will also be the second well in the SE 1/4 of Section 9. So, a spacing exception will be needed for 47 based on both of those violations of the statewide spacing rules. Let me know if I haven't explained this clearly. Steve Davies AOGCC From: Hoffman, Dale [mailto:Dale.Hoffman@pxd.com] Sent: Tuesday, February 22, 2011 1:21 PM To: Davies, Stephen F (DOA) Subject: Torok well plots Steve, Attached is the plot for the Torok wells at 1 in. = 2000 ft. The dotted lines are the permitted well paths and the solid line is the definitive existing survey data. Dale Hoffman, CPL I Sr.Staff Landman Pioneer Natural Resources Alaska, Inc. 700 G St.,Suite 600 I Anchorage,AK 99501 907 343 2108 voice I 907 830 2571 cell dale.hoffman@pxd.com Davies, Stephen F (DOA) From: Davies, Stephen F (DOA) Sent: Tuesday, February 15, 2011 1:13 PM To: 'Hoffman, Dale'; 'Campoamor, Kathy' Subject: ODST-47 Spacing Exception (Maybe ODST-46 too) Dale, Kathy: A spacing exception is apparently needed for Pioneer's proposed well ODST-47. Because pool rules are not in place for the Oooguruk-Torok,statewide rules govern well spacing in this undefined oil pool. AOGCC regulation 20 AAC 25.055(a)(3)states in part: "if oil has been discovered,the drilling unit for the pool is a governmental quarter section;not more than one well may be drilled to and completed in that pool on any governmental quarter section; ...". As I plot its proposed course,ODST-47 will be the second Torok well in the NW 1/4 of Section 15,T13N, R7E, UM. Since ODST-45A is producing oil from the Torok in that quarter section,a spacing exception is needed. If Pioneer's proposed well ODST-46 has been drilled,then ODST-47 will be the second well open to the Torok in the SE 1/4 of Section 9,which also requires a spacing exception (can be combined with that triggered by ODST-45A in the NW 1/4 of Section 15). If ODST-47 is drilled before ODST-46,then ODST-46 wilt require a spacing exception as it will then be the second well open to the Torok in SE 1/4 of Section 9. Let me know if this is in error or is unclear. Thanks, Steve Davies Sr. Petroleum Geologist Alaska Oil and Gas Conservation Commission 907-793-1224 1 O O O T-------- soO co ......,M 1 .0 0 �i O N • o O O ti IN- V' _ _ Vim o LL (...) 0 ___F V' E _ O 1 �-1 N CO o N ti O `r . W CI U v X v. Cs O WCD o 0 L O O M cr Q s G. O W o O o O o O 0 0 0 0 0 0 0 'cr 0 0 0 0 0 0 0 0 0 0 LU 0 LU 0 LU 0 o CZ o CO CD (0 LU LU LU TRANSMITTAL LETTER CHECKLIST ' WELL NAME ULy- ( 7 PTD# 2 /0 6)(S. Development Service Exploratory Stratigraphic Test Non-Conventional Well t POOL: CtR Le-r l� r�s-r�) Z diciL FIELD: ( L Fi? f 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(f), 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 coliance with 20 AAC EXCEPTION 25.055. Approval to perforate a d produce 7 in'ect is contingent upon issuance a conservati approving a spacing exception. /'/ —>i e 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 ITI CD 0 r- 'o co T 'a a 0 M o D 0 u , ; v ? 3• 4 rm- o cD cD N• — co r" 3 o N N 2 al u m N,c65 n 0 , (0 coN0 0 o X O n' N d I N N P. 7 O N O (D O <D O (D . _-_--- (O CO �l �C71 A W N) O n W W W (JO CO) W W W co W (O N N N N N N N n) N3 = cD CO v O cm A W N O cD CO v O) Ut A W N O CO CO O) 07 A W N -, O v m ;n In 'cn ,0 '� ,mw, ,* ,n 'W 'W ;v '-* 'D 'a, 'D .n .O 'n 'n 'CO 0 b 'D ;* n '- '" O O ." 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