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Home My WebLink About211-0847. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU Z-113 Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 211-084 50-029-23450-00-00 11393 Conductor Surface Liner Intermediate Liner 6635 80 2468 2532 8880 2622 8950 20" 13-3/8" 9-5/8" 7" 4-1/2" 6573 37 - 117 35 - 2503 2316 - 4848 32 - 8912 8771 - 11393 37 - 117 35 - 2236 2119 - 3422 32 - 6553 6470 - 6635 None 2260 3090 5410 7500 8950, 10715, 11337 5020 5750 7240 8430 8910 - 11293 4-1/2" 12.6# 13cr85 29 - 8781 6552 - 6637 Structural 4-1/2" HES TNT Perm Packer 8655 6399 Torin Roschinger Operations Manager Tyson Shriver tyson.shriver@hilcorp.com 907-564-4542 PRUDHOE BAY, BOREALIS OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028262 29 - 6477 N/A N/A 218 750 4480 6963 2352 2489 1500 1450 680 360 N/A 13b. Pools active after work:Borealis Oil No SSSV Installed 8655, 6399 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 11:15 am, Nov 25, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.11.23 09:34:18 - 09'00' Torin Roschinger (4662) RBDMS JSB 120424 WCB 2-7-2025 DSR-12/16/24 ACTIVITY DATE SUMMARY 11/17/2024 ***WELL FLOWING ON ARRIVAL*** RAN 3' x 1-7/8'', 3.85'' G-RING, TAG ROCK SCREEN @ 2148' SLM PULLED 3.81" X-LOCK w/ 2-7/8" SLOTTED LINER FROM HES X-NIP @ 2174' MD DRIFTED w/ 11' x 3.45" D. GUN(3.66" swell rings), 2.00" S. BAILER(msfb) TO 8547' SLM. PUH ~200' THEN RIH @~100 FPM(pass through spot) TO 8956' SLM(see log) RAN KJ, 1.50" BEEFED UP BOW SPRING CENT, STIFF 4-1/2" BRUSH, 3.79" G- RING. BRUSH 8547' SLM SPOT & DRIFT DOWN TO 5" x 4-1/2" XO @ 8767' SLM (+36' correction) B&F w/ KJ, 4-1/2" BRUSH, 3.79" G-RING. B&F TBG, MAKE MULIT PASSES BETWEEN ~8870' - ~8940 SLM (lrs pumped 150 bbls hot crude, followed by 50bbls ambienttemp, total 200) ***WSR CONT ON 11-18-24*** 11/17/2024 T/I/O=1519/1641/33 Assist Slickline LRS Unit 76 (PROFILE MODIFICATION) Pumped 200 bbls 190* crude down TBG. secure RU. FWHP=317/1457/33 11/17/2024 (Freeze Protect) TFS U4. Freeze protect flowline for slickline work. Pumped 3 bbls of neet down the flowline to freeze protect and pressure up. Flags and tags hung. Well left in control of slickline 11/18/2024 ***WSR CONT FROM 11-17-24*** R/D POL-61 ***JOB COMPLETE, WELL LEFT S/I*** 11/18/2024 ***WELL S/I ON ARRIVAL*** R/U POL-61 ***WSR CONT ON 11-19-24*** 11/18/2024 ***WELL SHUT IN ON ARRIVAL*** (SET EVO) MIRU HES E-LINE PT PCE 300PSI LOW, 2500PSI HIGH, FUNCTION WLVS CORRELATE TO HES COIL FLAG DATED 12-NOV-21 SET EVO-TRIEVE PLUG AT 8950'. CCL-ME=18', CCL STOP AT 8932'. TAG AFTER SET. RDMO HES E-LINE ***WELL SHUT IN ON DEPARTURE*** READY FOR SLICKLINE 11/19/2024 ***WSR CONT FROM 11-18-24*** SET 3.81'' X-LOCK, ROCK SCREEN @ 2174' MD (sec lockdown, 171" lih) RAN CHECK SET TO 3.81'' ROCK SCREEN @ 2174' MD ***JOB COMPLETE, WELL LEFT S/I*** Daily Report of Well Operations PBU Z-113 SET EVO-TRIEVE PLUG AT 8950'. New Plugback Esets 7/18/2024 Well Name API Number PTD Number ESet Number Date 09-44A PB1 50-029-22087-70-00 209-157 T39240 6-11-2010 15-27A PB1 50-029-22243-70-00 210-023 T39241 8-11-2010 17-09A PB1 50-029-20617-70-00 209-160 T39242 5-10-2010 18-10C PB1 50-029-20818-72-00 210-112 T39243 1-10-2011 G-30C PB1 50-029-21613-70-00 209-151 T39244 7-26-2010 K-10C PB1 50-029-21762-73-00 210-128 T39245 8-24-2011 M-17AL1 PB1 50-029-20627-70-00 211-086 T39246 3-30-2012 M-38A PB1 50-029-22519-70-00 201-132 T39247 2-22-2006 S-106 PB1 50-029-22999-70-00 201-012 T39248 2-22-2006 Z-113 PB1 50-029-23450-70-00 211-084 T39249 12-1-2011Z-113 PB1 50-029-23450-70-00 211-084 T39249 12-1-2011 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071):10. Field/Pool(s): Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU Z-113 Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 211-084 50-029-23450-00-00 11393 Conductor Surface Liner Intermediate Liner 6635 80 2468 2532 8880 2622 10715 20" 13-3/8" 9-5/8" 7" 4-1/2" 6631 37 - 117 35 - 2503 2316 - 4848 32 - 8912 8771 - 11393 37 - 117 35 - 2236 2119 - 3422 32 - 6553 6470 - 6635 None 2260 3090 5410 7500 10715, 11337 5020 5750 7240 8430 4-1/2" 12.6# 13cr85 29 - 8781 Structural 4-1/2" HES TNT Perm Packer 8655 8655 6399 Stan Golis Sr. Area Operations Manager Brodie Wages David.Wages@hilcorp.com 907.564.5006 PRUDHOE BAY, BOREALIS OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final 13.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028262 No SSSV Installed 29 - 6477 6399 N/A N/A 1247 2741 4211 5849 2109 2978 1145 1691 398 405 N/A STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2021 Submit Within 30 days or Operations Sr Res Eng: 8910 - 8940 6552 - 6568 By Samantha Carlisle at 1:07 pm, Nov 17, 2021 Digitally signed by Stan Golis (880) DN: cn=Stan Golis (880), ou=Users Date: 2021.11.17 13:02:21 -09'00' Stan Golis (880) MGR29DEC2021 DSR-11/17/21 RBDMS HEW 11/18/2021 SFD 11/18/2021 ACTIVITY DATE SUMMARY 11/6/2021 ***WELL S/I ON ARRIVAL*** (fco) PULLED 4-1/2" ROCKSCREEN FROM X-NIP @ 2,174' MD. ***JOB COMPLETE, READY FOR COIL*** 11/10/2021 LRS Test Unit. Assist Coil, FCO. Begin WSR on 11/10/21. Unit Move, RU, Begin PT. IL Well- Z-113, OL Well Z-113 Kill Flange, Continue WSR on 11/11/21 11/11/2021 CTU#9 1.75" CT 0.145" WT Job Objective: FCO/Perforate MIRU CTU. MU & RIH w/ 2.23" JSN BHA. Dry tag TD at 10689' ctm. PUH into the vertical section. Bullhead 1% kcl w/ safelube down tubing. Pooh. ***Continued on 11/12/21*** 11/11/2021 LRS Test Unit. Assist Coil, FCO. Continue from WSR 11/10/21. Finish PT, Standby for CTU. CTU on location. IL Well- Z-113, OL Well Z-113 Kill Flange, Continue WSR on 11/12/21 11/12/2021 LRS Test Unit. Assist Coil, FCO. Continue from WSR 11/11/21. Standby for CTU. CTU on location. IL Well- Z-113, OL Well Z-113 Kill Flange, Continue WSR on 11/13/21 11/12/2021 CTU#9 1.75" CT 0.145" WT Job Objective: FCO/Perforate Continue POOH w/ with 2.23" JSN. Load tubing w/ 30 DSL / 128 KCL / 6 BBL's 60/40. MU HES 40 arm caliper and RIH to 10,650'. Log OOH at 50 FPM. Paint coil flag at 8850' E / 8850.02 HES / 8861' M. GR/CCL data is good (+9' correction, caliper arms never opened). Town analyzed data and emailed revised Perforation depths. MU & RIH with HES 2" x 30' Millenium perf gun. At flag, correct depth. Perforate interval 8910' - 8940'. Pooh. All shots fired, ball recovered. ***Continued on 11/13/21*** 11/13/2021 CTU#9 1.75" CT 0.145" WT Job Objective: FCO/Perforate MU w/ 2.30" JSN BHA & RIH. Cleanout to 10700' pumping gel sweeps. Chase gel OOH and turn well over to the LRS testers to continue flowback. RDMOL ***Job Complete*** Daily Report of Well Operations PBU Z-113 Perforate interval 8910' - 8940'. Pooh. All shots fired, i O ! C .0- — N O O I CO N 7 LL O0 7 N CO J N03.) co o O C a W 'tn CO Tiy C M Z O V LL '0 f6.� C LL a O CO N T 0 til j Il a) .O V(QA N C^d co (n c 4 ? > N co Z.=_ 10 OL c agr om V 45 O C N >. N E N M CgJ.0 N NQ NO0 NO .9 d ! o 2 O. > _- o.-a a> 2= N� LLCO Z 1 o U m a m CO 7)030 2 7 °-o Cita OU o F. N a 2 o_ -I > a0v)— i.i0a 2U 2 a Tao v m ..- O 0 > a 0 0 0 0 0 0 0 0 .1 o y 2 N N N N N N N N I N on a N N N N N N- � 0 Oi I a I J ir N N N N N N N Z 1 !C) C) C) C) C) N- r- - C Q ; ISI O I'� c c c c c c c c E CO 4:-..• 0 U a a 0.) a a a a a I— tct o . 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I 474.- Q _I I ,1 e4- , I ti F- a `° Cea I II Z tI j l 0 Q U _z z W 11 w II CD cn 11 o a• w = 1 o O N N p_ o � I II I � I N M Q w 1 ;I I- 0 I— Z C z N G I H /3 Q W m Q, II II CO v/ Q m 11 11 a 0 d CI Q ° a CI Z ° E as 1 U Z 1 I d II I • inW Z O 0 o€7) / z II m CO E 3 y N 1 I Z 1:3 '.� Q 0)M Q •N V P• r) Z ami n C• c 2 '- Q ° y y I y 1 l0 ~ 0 H >,'- 1 E h a °8 I E I E a E a < CC 0I o L o Schlumbergerre, g: bp Drilling&Measurements Vq t:Vi" i LU i 2525 Cambell Street.Suite 400 Anchorage AK 99503 Tel(907)273-1700 U " Fax(907)561-8317 Date: 13-September-2011 Well Name: Z-113PB1 AND Z-113 Company: BP Exploration (Alaska) Inc. API Number: 50-029-23450-70 50-029-23450-00-00 AFE Number: X3-01080-C: Location: Z-Pad/Z-NH Field: Prudhoe Bay Unit-WOA Rig: Doyon 14 Drilling and Measurements Field Support: Operations Manager: Mario Pepe Field Service Manager: Brian Muzny Drilling and Measurements Field Crew: Cell Manager(s): Jesse Beckles MWD Engineers: Jesse Beckles Chirag Raisharma Jessica Dake Marat T Zaripov SERVICES PROVIDED Services Services Dates Depth Intervals Directional Survey Service 10-Aug-11 to 9-Sep-11 132 ft to 11393 ft TeleScope*Direction&Inclination 10-Aug-11 to 30-Aug-11 132 ft to 9257.0 ft ImPulse*Direction and Inclination 01-Sep-11 to 06-Sep-11 8924 ft to 11393ft VISION* Service Resistivity 10-Aug-11 to 9-Sep-11 132 ft to 11393ft VISION*Service Density Neutron 22-Aug-11 to 9-Sep-11 4849 ft to 11393 ft StethoScope*Formation Pressure Drilling 22-Aug-11 to 30-Aug-11 4849 ft to 9257 ft OPERATING STATISTICS Total MWD Pumping Time 236.8hrs Total LWD Pumping Time: 236.8hrs Total MWD Time below Rotary 354.0hrs Total LWD Time Below Rotary: 354.0hrs Total MWD depth Interval: 11261 ft Total LWD Depth Interval: 11261 ft Total MWD Runs: 4 Total LWD Runs: 4 1 • Schlumberger by JOB PERFORMANCE Directional The final MWD survey point of Z-113pb1 was 9161.72 ft MD with an inclination of 56.41 degrees and an azimuth of 80.11 degrees. A survey was projected ahead,making the final bottom hole location: Measured Depth: 9257.00 ft True Vertical Depth: 6651.31 ft Displacement at Azimuth: 5731.67ft at 80.11 degrees The final MWD survey point of Z-113 was 11295.98 ft MD with an inclination of 91.21 and anazimuth of 119.34 degrees A survey was projected ahead,making the final bottom hole location: Measures Depth: 11393.00 True Vertical Depth: 6637.43 Displacement at azimuth: 4379.83 ft at 119.00 degrees Formation Evaluation 16 inch Surface Section Section The well was spud without using any M/LWD tools.After reaching 637 feet BHA was Laid down and Telescope and ARC picked up.After tagging bottom madpass was performed to allow formation evaluation of the permafrost.Proceeded to drill down to 2510 ft MD while building angle too 52.41 degrees.ARC resistivity and gamma ray provide for the length of the run. 12 1/4 inch Initial intermediate Section TeleScope Direction and Inclination and ARC Resistivity and Gamma Ray provided for the length of the run from 2509 ft MD to 4918 ft MD this is the first of two intermediate sections. 8.75inch Second Intermediate Section Run start at 4918ft MD and drilled down to 9257 ft MD. VISION* Service resistivity and density Neutron were provided for the course of the run Stethoscope Formation Pressure while drilling pressure points were taken across the various formations of the run while reaming out of hole. At Section TD slow mad pass of 50ft/hr was made to attain Density Neutron data in real time. 6 1/8 inch Production Section VISION* Service Gamma Ray, Resistivity services and Density Neutron were provided throughout the lateral production section of the Z-113 well. Lateral Section was sidetracked at a depth of 8924 ft MD drilled to a total depth of 11393ft MD. Significant Signal demodulation problems noted over the course of this run. Innovation Well featured the HSPM 16_1c_02 surface acquisition software. This new software improves Schlumberger's ability to reliably and efficiently deliver data and maintain the high standard of service quality expected. 2 Schlumberger by 0 Sincerely, Jesse Beckles MWD Engineer Schlumberger Drilling&Measurements 3 �� / �- ^^--' efi„ :" c �� rat 11.—A„,,, ��Q � /�� MAY 3@ >"`\$chlumberger ��~��v�/��»~��/ Drilling&Measurements MWD/LWD Log Product Delivery Customer BPXA Dispatched To: Christine Shartzor(AOGCC) Well No Z'113 Date Dispatched: 13-Sep-11 Installation/Rig Doyon 25 Dispatched By: Jesse Beckles Data No Of Prints No of CDs l Surveys 2 Perform Letter 1 Logs: VISION Service MD 2in 9609 to 15778 1 PDF included VISION Service TVD 2in 9609 to 15778 1 PDF included LAS Digital Data Please sign and return to: Analisa Steger Received By: \��.-6^ opcxvmm«on(mo^ka)mo. 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Attn:Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage,Alaska 99519-6612 May 25, 2012 Mr. Jim Reggf 1.3 Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB Z-Pad Dear Mr. Regg, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB Z- Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Gerald Murphy, at 659-5102. Sincerely, / Mehreen Vazir BPXA, Well Integrity Coordinator BP Exploration (Alaska ) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor,Sealant Top-off Report of Sundry Operations(10-404) Z-Pad Date:05/02/2012 Corrosion Initial top of Vol.of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD# API# cement pumped cement date inhibitor sealant date ft bbls ft na gal Z-01B 2081080 50029218300200 Z-02A 1960430 50029218140100 Z-03 1971310 50029227870000 Z-04A 2042300 50029219900100 Z-05 1900780 50029220560000 Z-06 1880320 50029217980000 Z-07A 1931100 50029220460100 Z-08A 1931280 50029217870100 Z-09A 2081410 50029219670100 Z-10 1891160 50029219860000 Z-11A 2050310 50029220530100 Z-12 1891020 50029219770000 Z-13A 2042030 50029220690100 114B 2060990 50029218440200 Z-15 1880880 50029218490000 Z-16 1920120 50029222450000 Z-17 1891390 50029220010000 Z-18 1890960 50029219710000 Z-19A 2061050 50029222510100 Z-20 1881000 50029218590000 Z-21A 2001010 50029219380100 Z-22B 1960350 50029220370200 Z-23B 2041080 50029219500200 Z-24 1890180 50029219170000 Z-25 1881590 50029219020000 Z-26A 2060790 50029219450100 Z-27 1900310 50029220220000 Z-28 1881270 50029218790000 Z-29 1890650 50029219540000 Z-30A 2032190 50029220130100 Z-31 1881120 50029218710000 Z-32BL1 1970350 50029219246000 Z-33A 1890050 50029218950100 Z-35 1980930 50029228840000 Z-38 1980600 50029228730000 Z-39A 2042240 50029229950100 Z-40 2111730 50029234620000 1.3 NA 1.3 NA 15.3 4/7/2012 Z-46A 2052030 50029232800100 Z-50 2120010 50029234630000 1.3 NA 1.3 NA 13.6 5/2/2012 Z-65 2110910 50029234510000 1.4 NA 1.4 NA 12.8 4/7/2012 Z-67 2110130 50029234410000 2.8 NA 2.8 NA 34.0 4/8/2012 Z-100 2031710 50029231820000 Z-101 2001620 50029229780000 Z-102 2070500 50029233530000 Z-103 2042290 50029232350000 Z-108 2052010 50029232920000 Z-112 2071720 50029233800000 Z-113 2110840 50029234500000 1.8 NA 1.8 NA 12.8 4/7/2012 Z-116 2111240 50029234550000 3.0 NA 3.0 NA 22.1 4/8/2012 l27m ) R4 � Jm; sel ;w = T%0M •i3O \\\z «(ZmE»tSS� ■ a , 97 CD . l ;®2 -4§�■1�›..mK = S. an go 'n%I- _ no }\§ 2 . m m §� - m Qm0-,m0z§§ F nom, \ k2§�§�§§t£oo % , m % See■oq§La§§ - { o_wow0 nmamLm_c, Z \§0000 `0 gg2�§q m Z00 /g) Z- § 0 -I 9§§ 2§ � F > m r* r 0 0 -.;§ m § - I § m m 0 -n 0 0 -I 0 m ° 0 I \ 0 CC,,iii go su hi [ 2 rn ___ ___ __ r ® c = 0 - 0 Z I ( j / _ _ 0 � ° if ; | o , > a _ 6 ��2�/ ) ® / n =2- E£ - mc - _ &�9k ; 7ƒ \7100 7{i5 o0 ■ STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: ®Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended 1b. Well Class: 20AAC 25.105 20AAC 25.110 ® Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number. BP Exploration(Alaska) Inc. 9/15/2011 211-084 3. Address: 6.Date Spudded: 13. API Number. P.O. Box 196612,Anchorage,Alaska 99519-6612 8/10/2011 50-029-23450-00-00 4a. Location of Well(Govemmental Section): 7.Date T.D.Reached: 14. Well Name and Number Surface: 9/4/2011 Z-113 4434'FSL,2717'FEL,SEC. 19,T11 N, R12E, UM 8. KB(ft above MSL): 90.3T 15.Field/Pool(s): Top of Productive Horizon: 3700'FSL,603'FEL, SEC. 18,T11 N, R12E, UM GL(ft above MSL): 56' Prudhoe Bay Field/Borealis Pool Total Depth: 9.Plug Back Depth(MD+TVD): 3284'FSL, 1676'FWL, SEC. 17,T11 N,R12E, UM 11376' 6635' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 599958 y- 5959240 Zone- ASP4 11393' 6635' ADL 028262 TPI: x- 601994 y- 5963814 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 604280 y- 5963430 Zone- ASP4 None 18.Directional Survey: ®Yes ❑No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1808' 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: MWD GR, RES, NEU, AZI DENS, USIT None 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE TOP BOTTOM Top BOTTOM SIZE CEMENTING RECORD PULLED 20" 129.5# X-65 Surface 117' Surface 117' 42" 260 sx Arcticset(Approx.) 13-3/8" 68# L-80 35' 2503' 35' 2235' 16" 1808 sx DeeoCrete.368 sx Class'G'.Too r T°t' r°6 9-5/8" 40# L-80 2316' 4848' 2119' 3422' 12-1/4" 272 sx DeeoCrete.696 sx Class'G' e, ,Zz 601- 7" 26# L-80 32' 8912' 32' 6553' 8-3/4" 279 sx LiteCrete. 183 sx Class'G' 4-1/2" 12.6# 13Cr80 8771' 11393' 6470' 6635' 6-1/8" Uncemented,w/Sliding Sleeves&Swell Packers 24. Open to production or injection? ®Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/TVD) (MD+TVD of Top&Bottom;Perforation Size and Number): 4-1/2"Sliding Sleeve w/Swell Packers 4-1/2", 12.6#, 13Cr85 8781' 8655'/6399' MD TVD MD ND 8974'-9007' 6586'-6602' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 9371'-9404' 6670'-6666' 10052'-10085' 6640'-6641' } •-• DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 10551'-10585' 6635'-6634' uO�RP; r um >. 10863'-10897' 6642'-6644' I ' a 8912' Set Whipstock,K/O from PB1 ,/ 11188'-11221' 6640'-6639' 2100' Freeze Protected w/71 Bbls of Diesel 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): Not on Production Yet N/A Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period ' Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No Sidewall Core(s)Acquired? 0 Yes ®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,photograph na Ical results per 20 MC 250.071. None OCT 11 3 2011 RBDMS OCT 17 101� �; ll�L Alaska Oil & Gas Cons. Commission Form 10-407 Revised 12/2009 CONTINUED ON REVERSE i AnChOfiign Su mit Original Only 29. GEOLOGIC MARKERS(List all formations and irudrkers encountered): 30. FORMATION TESTS NAME MD TVD Well Tested? 0 Yes ®No Permafrost Top 34. 34' If yes,list intervals and formations tested,briefly summarizing test Permafrost Base 1952' 1842' results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Ugnu 4308' 3106' None Schrader Bluff N Sands 6360' 4587' Schrader Bluff 0 Sands 6571' 4760' Base Schrader/Top Colville 6989' 5117' HRZ 8548' 6333' Kalubik 8853' 6520' Kuparuk C 8908' 6550' Kuparuk B 9009' 6603' Kuparuk A 9110' 6643' Kuparuk A 9520' 6657' Kuparuk B 9660' 6645' Kuparuk A 10898' 6644' Kuparuk A 11010' 6648' Kuparuk C(From Base) 11010' 6648' Formation at Total Depth(Name): Kuparuk C(From Base) 11010' 6648' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed: Terrie Hubble•-lblAlt, (r1(1464 Title: Drilling Technologist Date: bh3/ / Z-113 211-084 Prepared By Name Number. Tenie Hubble, 564-4628 Well Number Permit No./Approval No. Drilling Engineer: Ryan Ciolkosz, 564-5977 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 elevation 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 TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: 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 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: 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 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. 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O ‹ ‹ 00000 00,0'0009 8gfrg Tli FNM ,710 (0 (- Co0) O � NMM- W (0N- 000NN O I BP AMERICA Leak-Off Test Summary Well Name: Z-113 Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 08/18/11 LOT 2,503.00 2,237.00 8.80 410.00 1,432.60 12.33 08/23/11 LOT 4,848.00 3,423.00 9.40 850.00 2,521.50 14.18 08/31/11 FIT 8,912.00 6,618.64 10.30 590.00 4,131.40 12.02 Page 1 of 1 • 2 ,- �m� • I 1 "It I 0) NIT\` ��►`�V i,41 1 \ `I N-- -'SPINE RD J 9 ■ ■ 33 '.'1 .! ti 1 y' < 8 ■ ■ 32 _A'°CA 7 ■ ■ 31 ` i ? ' i' \ cL. W-PAD". 6 ■ ■ 30 • 1 g1 115 • ■ 29 Z-PAD Id 108 ■ • 21 1 k 4 •3 •• i 217 THIS PROJECT . G/ 2 ■ ■ 1041 �� 11 ■ 114i 1 • ■ 103iSPA 1 ! SPARE-A t JJJ / • P-504A 1� ,•,-,-- ((I ;� / ! PI®® ■ P-5048 (\ - VICINITY MAP El NTS ■ 21 ■ 22 39 ■ ■ 23 11 ■ 12 ■ ■ 24 / ■ 25 13 I 14 ■ - ■ 26 ■ SLOT 1 � IAMIIIII 15 ■ ■ SLOT 2 ` O F A I'// ■ SLOT `�P� ° °°°° ,��q /I,,/ 16 ■ • SLOT 4 ° ■ 101 •� • C?°� • *„`Y.,f- 179 ��I� SURVEYOR'S CERTIFICATE 1+ 18 • °° - I HEREBY CERTIFY THAT I AM 46 • • Z—PAD °°°°°°_°^ ° PROPERLY REGISTERED AND LICENSED °°'°°°°°0 TO PRACTICE LAND SURVEYING IN ' �� j THE STATE OF ALASKA AND THAT 20 • 4.°° 00000:00 °°= THIS AS-BUILT REPRESENTS A SURVEY 41/0 MADE BY ME OR UNDER MY DIRECT ' S5 S11 !'% 'ichard F. Allison°o?..,,,6 sr DIMENSIONOSNAND THAT ALL AND OTHER DETAILS ARE 66 202 � °°, ,60$ ° �J = CORRECT AS OF JULY 02, 2011. ■ 60 2181 SD 57 ,'//// PROFfSSIONA�\* ''I* 215 115 /III1414M‘‘``� 2111 2161 'I 2SL NK �- 2131 ■ EETOC:: LEGEND 105f f- 201 • AS-BUILT CONDUCTOR 2171 268 2121 ■ EXISTING WELL CONDUCTOR NOTES: i 1. ALASKA STATE PLANE COORDINATES ARE ZONE 4. :,!,-,D 27. I 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL I MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. GEODETIC DATUM IS NAD27. 6. PAD AVERAGE SCALE FACTOR IS 0.999911213. 7. DATES OF SURVEY: JUNE 28-30, JULY 1-2, 2011. 8. REFERENCE FIELD BOOKS: NS11-44 PGS. 1-75; NS11-46 PGS. 1-9. AS-BUILT WELL CONDUCTORS: ' 34i, 40,42, 50, 51i, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 212i, 213i, 214i, 215i, 216i, 217i, 218i, SD, SG, SL, NK I F. Robert DRAWN: ` � BARNHARTQbp /(-f-" CHECKEDJACOBS �j I� ( DATE 0 7/, )',' bp DRAWING: SHEET: � FRB11 WOZ 21 WOA Z—PAD SSUC1 �e NO IWRD PAD EXPANSION 1 OF 3 0017/1/111 ISSUED FOR INFORMATION TRB JJ WS Mc MOO AIAMlRS SCALE NI NM sue we 10 = 200• AS—BUILT WELL CONDUCTORS NO-i TATE I REVISION BY_CHK .0.010 0 WN °.,., LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC CELLAR SECTION NO. COORDINATES COORDINATES_POSITION(DMS) POSITION(D.DD) BOX ELEV. OFFSETS Y= 5,959,100.13 N= 1,179.09 70'17'51.597" 70.2976658' 4,292' FSL 341 X= 600,125.84 E= 1,870.12 149'11'20.998" 149.1891661' 56.1' 2,552' FEL Y= 5,959,100.17 N= 1324.00 70'17'51.616" 70.2976711' 4,294' FSL 40 X= 599,980.94 E= 1870.16 149'11'25.221" 149.1903392' 56'0 2,697' FEL Y=5,959,239.95 N 1,126.45 7017'52.965" 70.2980458' " 4,431' FSL 42 X= 600,178.47 E= 2,009.96 149'11'19.409" 149.1887247' 56'02,497' FEL Y= 5,959,100.19 N= 1,473.93 70'17'51.636" 70.2976767' 4,296' FSL 50 X= 599,831.02 E= 1,870.18 149'11'29.591" 149.1915531' 56.2' 2,847' FEL Y=5,959,240.04 N= 1,466.46 70'17'53.011" 70.2980586' 4,435' FSL 51 X= 599,838.49 E= 2,010.05 149'11'29.319" 149.1914775' 55'9 2,837' FEL Y= 5,959,100.12 ` N= 1,458.95 70'17'51.634" 70.2976761' 4,295' FSL 55 X= 599,846.00 E= 1,870.11 14911'29.155" 149.1914319' 56.1' 2,832' FEL Y=5,959,240.04 N= 1,421.49 70'17'53.005" 70.2980569' 4, 435' FSL 57 X= 599,883.46 E= 2,010.05 149'11'28.009" 149.1911136' 55'9 2,792' FEL Y=5,959,239.97 N= 1,376.44 70'17'52.998" 70.2980550', '4,434' FSL 61 X= 599,928.50 E= 2,009.98 149'11'26.695" 149.1907486' 55,9' 2,747' FEL Y=5,959,239.94 N= 1,436.45 70'17'53.006" 70.2980572' 4,435' FSL 62 X= 599,868.50 E= 2,009.95 149'11'28.445" 149.1912347' 56.0' 2,807' FEL Y= 5,959,100.15 N= 1,398.94 70'17'51.626" 70.2976739' 4,295' FSL 65 X= 599,906.01 E= 1,870.14 149'11'27.405" 149.1909458' 56.1' 2,772' FEL Y= 5,959,100.11 N= 1,443.99 70'17'51.632" 70.2976756' 4,295' FSL 66 X= 599,860.96 E= 1,870.11 149'11'28.719" 149.1913108' 56.2' 2,817' FEL Y=5,959,100.23 N= 1,134.00 70'17'51.592" 70.2976644' 4,291' FSL 68 X= 600,170.92 E= 1,870.22 14911'19.683" 149.1888008' 55'9 2,507' FEL Y=5,959,239.94 N= 1,301.49 70'17'52.988" 70.2980522' 4,433' FSL 69 X= 600,003.45 E= 2,009.95 149'11'24.511" 149.1901419' 56.1' 2,672' FEL Y= 5,959,100.10 N= 1,384.02 7017'51.624" 70.2976733' 4,294' FSL 70 X= 599,920.93 E= 1,870.09 149'11'26.971" 149.1908253' 56.2' 2,757' FEL Y=5,959,100.05 N= 1,163.88 70'17'51.594" 70.2976650' 4,291' FSL 105 X= 600,141.04 E= 1,870.04 149'11'20.554" 149.1890428' 55'9 2,537' FEL Y=5,959,239.90 N= 1,346.45 70'17'52.994" 70.2980539' 4,434' FSL 113 X 599,958.49 E= 2,009.91 149'11'25.821" 149.1905058'.. . 560'. 2,717' FEL Y=5,959,240.03 N= 1,361.38 7017'52.997" 70.2980547' 4,434' FSL 55.9' X= 59943.5E= 2,00.04 149'11'26.256" 149.196267 , 2,732' FEL, NOTES: 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. AS—BUILT WELL CONDUCTORS: 34i, 40, 42, 50, 51i, 55, 57, 61, 62, 65, 66, 68, 69, 70. 105, 113, 115, 201, 202, 203, 211i, 2121, 213i, 2141, 2151, 216i, 217i, 218i, SD, SG, SL, NK F. Robert DRAWN i, BARNHART i /�°="'�`- CHECKED: �l DATES JACOBS i�IN,�i �i_i1 7�1�11 �� Dp .10 DRAWING: gg p p✓ FR811 woz z, WO A: Z PAD SHEET: 11 USSOC, SCB No- WRD PAD EXPANSION 00 7/1/1 T ISSUED FOR INFORMATION TFB waxmrs uro uw w.vcmxz SCALE' 2 OF 3 1 NO. DATE REVISION IBr CHK : :�CKs.W. 1" = z00' AS—BUILT WELL CONDUCTORS LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC GRAVEL SECTION NO. COORDINATES COORDINATES POSITION(DMS) POSITION(D.DD) PAD ELEV. OFFSETS Y=5,959,240.18 N= 1,171.46 70'17'52.973" 70.2980481' 4,432' FSL 201 X= 600,133.47 E= 2,010.19 149'11'20.721" 149.1890892' 56.6' 2,542' FEL Y=5,959,239.94 N= 1,451.46 70'17'53.008" 70.2980578' 4,435' FSL 202 X= 599,853.49 E= 2,009.95 149'11'28.882" 149.1913561' 55.9' 2,822' FEL _ Y=5,959,100.03 N= 1,148.96 70'17'51.592" 70.2976644' 4,291' FSL 203 X= 600,155.96 E= 1,870.02 149'11'20.119" 149.1889219' 56.0' 2,522' FEL Y=5,959,100.23 N= 1,308.95 70'17'51.615'' 70.2976708' 4,293' FSL 2111 X= 599,995.99 E= 1,870.22 149'11'24.783" 149.1902175' 55.9' 2,682' FEL Y= 5,959,240.11 N= 1,141.47 70'17'52.969" 70.2980469' 4,431' FSL 212i X= 600,163.45 E= 2,010.12 149'11'19.847" 149.1888464' 56.4' 2,512' FEL Y=5,959,240.04 N= 1,271.44 70'17'52.985" 70.2980514' 4,433' FSL 213i X= 600,033.50 E= 2,010.05 149'11'23.635" 149.1898986' 56.1' 2,642' FEL Y=5,959,100.25 N= 1,293.88 70'17'51.613" 70.2976703' 56 2' 4,293' FSL 214i X= 600,011.06 E= 1,870.24 149'11'24.343" 149.1900953' 2,667' FEL Y= 5,959,100.14 N= 1,354.05 70'17'51.620" 70.2976722' 4,294' FSL � 215i X= 599,950.89 E= 1,870.13 149°11'26.097" 149.1905825' 56.2' 2,727' FEL Y=5,959,240.09 N= 1,316.42 7017'52.992" 70.2980533' 4,433' FSL 216i X= 599,988.52 E= 2,010.10 14911'24.946" 149.1902628' 56.0' 2,687' FEL Y=5,959,239.98 N= 1,156.36 7017'52.970" 70.2980472' 4,431' FSL 217i X= 600,148.56 E= 2,009.99 149'11'20.281" 149.1889669' 56.2' 2,527' FEL Y=5,959,239.98 N= 1,391.46 70'17'53.000" 70.2980556' 4,434' FSL 2181 X= 599,913.48 E= 2,009.99 149'11'27.133" 149.1908703' 55'9 2,762' FEL Y= 5,959,100.11 N= 1,429.03 70'17'51.630" 70.2976750' 4,295' FSL SD X= 599,875.92 E= 1,870.10 149'11'28.283" 149.1911897' 56.4' 2,802' FEL Y=5,959,100.09 N= 1,369.02 70'17'51.621" 70.2976725' 4,294' FSL SG X= 599,935.92 E= 1,870.08 149'11'26.533" 149.1907036' 56.2' 2,742' FEL Y= 5,959,100.01 N= 1,279.00 70'17'51.609" 70.2976692' 4,293' FSL SL X= 600,025.94 E= 1,870.00 149'11'23.910" 149.1899750' 56.3' 2,652' FEL Y=5,959,239.85 N= 1,286.54 70'17'52.985" 70.2980514' 4,433' FSL NK X= 600,018.40 E= 2,009.86 149°11'24.075 149.1900208' 56'0' 2,657' FEL NOTES: 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL _ MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. 6. ALPHA NAME DESIGNATIONS REFER TO BPX DRILLING SURFACE SLOT NAME AS—BUILT WELL CONDUCTORS: 341, 40, 42, 50, 51i, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 2111, 212i, 2131, 214i, 215i, 216i, 217i, 218i, SD, SG, SL, NK F. Robert DRAWN: lI BARNHART \h4j�I ,�11 /�—�''.�` CHECKED: �~��f%� JACOBS _ bp `If � DATE: iN1, /� 1t 7/1/11 rte �� DRAWING: F_c_ _ FRB11 WOZ 21 WOA Z—PAD IpSppu roe No WRD PAD EXPANSION 00 7/1/11 ISSUED FOR INFORMATION TFe ��11�1liiii�r SCALE. _ 200• AS—BUILT WELL CONDUCTORS 3 of 3 NO. DATE REVISION BY CHK ''OO"cc Av.. ww , North America-ALASKA- BP Page 1 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/9/2011 06:00 - 07:30 1.50 MOB P PRE SKID FLOOR 07:30 - 11:00 3.50 MOB P PRE MOVE RIG ON TO WELL Z-113 11:00 - 12:00 1.00 MOB P PRE SKID RIG FLOOR 112:00 - 12:30 0.50 MOB P PRE CONTINUE TO SKID RIG FLOOR 12:30 - 15:00 2.50 MOB P PRE RIG UP LINES UNDER FLOOR.SPOT AND BERM ROCK WASHER.SPOT FUEL AND j TIGER TANK.SPOT AND HOOK UP WARM UP SHACK.TEST BOILER FIRE SHUT DOWN. TEST EMERGENCY SHUT DOWN.CHANGE OUT BREAKER IN SCR ROOM. 15:00 - 23:00 8.00 RIGU P PRE ,SET SURFACE BAG ON DIVERTER SPOOL. HOOK UP DIVERTER. NIPPLE UP RISER AND 'FLOW LINE.SPOT ENVIROVAC,MWD,MUD / , AND GEO SHACK.BRING ON FLUID TO PITS. — — INSPECT DERRICK. 23:00 - 00:00 1.00 RIGU P ' PRE PJSM PICK UP 5"DP FROM SHED. 8/10/2011 00:00 - 04:00 4.00 RIGU P 1 PRE CONTINUE TO PICK UP 5"DP FROM SHED I. AND RACK BACK IN DERRICK,22 STANDS, PICK UP 5"HWDP AND RACK BACK,4 STANDS )C 04:00 - 04:30 0.50 BOPSUR P ' SURF FUNCTION TEST DIVERTER AND KNIFE 0,3 VALVE.ANNULAR CLOSED IN 22 SECONDS. STARTING PRESSURE ON KOOMEY 3050 PSI, (€- FUNCTION PRESSURE TO 1900 PSI, PRESSURE UP 200 PSI IN 33 SECONDS,FULL PRESSURE IN 159 SECONDS.TEST WITNESSED BY BP WSL CHRIS KOBUCK, AND WILL TURNER,DOYON TOURPUSHER I MIKE SMITH.AOGCC REP MATT HERRERA WAIVED WITNESS AT 17:05 08/09/2011. 04:30 - 05:00 0.50 BOPSUR P SURF PERFORM DIVERTER DRILL AND RIG EVAC 1 DRILL.WITH MOSES CREW.CRT=120 SECONDS FOR DIVERTER,CRT=420 SECONDS ON EVAC DRILL. 05:00 - 06:30 1.50 DRILL P SURF MOBILIZE BHA 1 TO RIG FLOOR 06:30 - 09:00 2.50 DRILL P SURF SPOT GYRO. PRESSURE TEST SURFACE 1 I MUD LINES TO 4200 PSI,JUST BELOW POP OFF SETTINGS. 09:00 - 12:00 3.00 DRILL P SURF MAKE UP BHA#1 12:00 - 14:00 2.00 DRILL P SURF FILL HOLE,CHECK FOR LEAKS.REPLACE BLEED OFF NIPPLE ON RISER. 14:00 - 15:30 1.50 DRILL P SURF PJSM. HANG GYRO SHEAVE. PICK UP GYRO TOOL. 15:30 - 16:00 0.50 DRILL P SURF PRE-SPUD MEETING WITH ALL HANDS. 16:00 - 00:00 8.00 DRILL P SURF DRILLING FROM 117'TO 360' . --PICK UP WT=68K,SLACK OFF WT=68K, ROTATE WT=68K —GPM=500, PSI ON BOTTOM=510, PSI OFF BTM=420 1 1 —TORQUE ON AND OFF BOTTOM=1 K, RPM=40,WOB=10K --AST=1.81,ART=2.55,ADT=4.36 Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 2 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time: 8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/11/2011 00:00 - 02:00 2.00 DRILL P SURF DRILLING FROM 360'TO 385' --PICK UP WT=68K,SLACK OFF WT=68K, ROTATE WT=68K --GPM=500, PSI ON BOTTOM=510, PSI OFF • BTM=420 --TORQUE ON AND OFF BOTTOM=1K, RPM=40,WOB=10K 02:00 - 03:30 1.50 DRILL N •" SURF 'DUE TO LOSING BUILD RATE,DISCUSSED WITH TOWN ODE DECISION WAS MADE TO PULL OUT OF HOLE AND DIAL MOTOR UP TO A 2.12 DEGREE BEND FROM A 1.83. 03:30 - 04:00 0.50 DRILL P SURF RUN BACK IN HOLE TO 385' 04:00 - 10:30 6.50 DRILL P SURF DRILLING FROM 390'TO 527' --PICK UP WT=75K,SLACK OFF WT=75K, ROTATE WT=75K --GPM=500, PSI ON BOTTOM=590, PSI OFF BTM=460 --TORQUE ON AND OFF BOTTOM=1 K, RPM=40,WOB=15K --AST=3.96,ART=0,ADT=3.96, BIT HRS=9.9, JAR HRS=9.9 10:30 - 12:00 1.50 DRILL N SURF PULL OUT OF HOLE DUE TO LOW BUILD — L RATES. 12:00 - 13:00 1.00 DRILL N SURF LAY DOWN MOTOR AND BIT 13:00 - 16:00 3.00 DRILL N SURF PICK UP NEW MOTOR AND BIT.ADJUST MOTOR BEND TO 2.60 DEGREE.ORIENT UBHO RIH TO 527' 16:00 - 20:00 4.00 DRILL P SURF DRILLING FROM 527'TO 639' —PICK UP WT=75K,SLACK OFF WT=75K, ROTATE WT=75K --GPI&550,PSI ON BOTTOM=1140,PSI OFF BTM=960 —TORQUE ON AND OFF BOTTOM=1 K, - —- - ----— �_ _ .___.---------...--- RPM=40,WOB=20K 20:00 - 21:00 1.00 DRILL N SURF POOH DUE TO HIGH DOGLEGS, LAYDOWN MOTOR AND BIT 21:00 - 00:00 3.00 DRILL N SURF CONSULT WITH TOWN ODE AND DECISION WAS MADE TO RUN IN WITH BIT JUST BELOW UBHO AND PERFORM CHECK SHOT ON BOTTOM. 8/12/2011 00:00 - 01:00 1.00 DRILL P SURF RUN GYRO FOR CHECK SHOT ON BOTTOM 01:00 - 02:00 1.00 DRILL P SURF FLOW CHECK WELL PULL OUT OF HOLE CHANGE OUT BHA 02:00 - 07:00 5.00 DRILL N SURF CHANGE OUT BHA PICK UP MWD TOOLS AND MOTOR AND RIH TO 639' 07:00 - 09:30 2.50 DRILL P SURF MAD PASS FROM 615'TO 215' --GPM=450, PS 640,PICK UP WT=90K,SLACK OFF WT=85K 09:30 - 10:00 0.50 DRILL P SURF TRIP IN HOLE FROM 215'TO 639'WASH DOWN LAST STAND GPM=550,PS870 10:00 - 11:30 1.50 DRILL P SURF DRILLING FROM 639'TO 674' —PICK UP WT=90K,SLACK OFF WT=85K, ROTATE VVT=85K —GPW55 PSI ON BOTTOM=1110,PSI OFF BTM=840 —TORQUE ON AND OFF BOTTOM=1 K, RPM=40,WOB=25K —ART=O,AST=.69,ADT.69 11:30 - 12:00 0.50 DRILL P SURF RIG DOWN GYRO DATA AND WIRELINE Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 3 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080E(5,930,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:OOAM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 t 12.00 DRILL P SURF DRILLING FROM 674'TO 1249' --PICK UP WT=100K,SLACK OFF WT=95K, ROTATE WT=100K --GPM=600, PSI ON BOTTOM=1180, PSI OFF l BTM=1000 --TORQUE ON=4KAND OFF BOTTOM=2K, � RPM=40,WOB=25K --ART=1.65,AST=7.10,ADT=8.75 8/13/2011 00:00 - 08:00 8.00 DRILL P I • _ SURF DRILLING FROM 1349'TO 1966' --PICK UP WT=119K,SLACK OFF WT=102K, jl I ROTATE WT=108K --GPM=600, PSI ON BOTTOM=1180, PSI OFF BTM=1010 --TORQUE ON=8K OFF BOTTOM=4K, RPM=40, WOB=25K --ART=1.65,AST=7.10,ADT=8.75 08:00 09:30 1.50 DRILL P SURF PULL UP TO 1830'WORK OUT DOGLEG 09:30 - 12:00 2.50 DRILL P r SURF DRILLING FROM 1966'10 2121' --PICKUP WT=119K,SLACK OFF WT=102K, ROTATE WT=108K -GPM=600, PSI ON BOTTOM=1180, PSI OFF k BTM=1010 i --TORQUE ON=8KAND OFF BOTTOM=4K, RPM=40,WOB=25K --ART=2.85,AST=3.70,ADT=6.55 12:00 17:30 5.50 DRILL 1 P SURF DRILLING FROM 2121'TO 20' --PICK UP WT=120K,SLACK OFF WT=100K, I I ROTATE WT=110K -GPM=600, PSI ON BOTTOM=1310, PSI OFF • BTM=1130 ' I TORQUE ON=8K OFF BOTTOM=4K, RPM=40, I • WOB=25K --ART=.78,AST=2.44,ADT=3.22 • _ _ --HYDRATES SEEN a@ 2277',2313',2324'MD 1 -f CIRCULATE BOTTOMS AND CONDITION MUD 17:30 - 21:30 4.00 DRILL P SURF TO ENSURE RHEOLOGY PRIOR TO PULLING OUT OF HOLE 21:30 - 00:00 2.50 DRILL I P SURF MONITOR WELL 10 MINUTES PUMP OUT OF HOLE FROM 2510'TO 2100', BACK REAM OUT OF HOLE FROM 2100'TO 1615'GPM=600, ' 1 PSI=1130, RPM=40 TORQUE=4K 8/14/2011 00:00 - 01:00 1.00 DRILL P SURF CONTINUE TO BACKREAM OUT OF HOLE FROM 1615'TO 700', GPM=600, PSI=1000, RPM=40,TORQUE=3 01:00 - 02:30 1.50 DRILL P SURF MAD PASS FROM 700'TO 550'AT 200'PER HOUR 02:30 - 04:30 2.00 DRILL P SURF MONITOR WELL FOR TEN MINUTES, RUN IN HOLE IN HOLE FROM 550'TO 1132'WORK THROUGH TIGHT SPOT 20 RPM, GPM=200,AT 1297'CONT TO RIH TO 2472'WASH DOWN FROM 2472'TO 2510'GPM=400, PSI=830 PSI RPM=20 04:30 - 07:00 2.50 DRILL P SURF CIRCULATE BOTTOMS UP 3 TIMES AND CONDITION MUD,GPM=600,PSI=1110, RPM=40,TORQUE=3K 07:00 - 09:00 2.00 DRILL P SURF MONITOR WELL 10 MINUTES, PULL OUT OF HOLE FROM 2510'TO 1230',WORK THROUGH TIGHT SPOOT FROM 1230'TO 1220', CONTINUE TO PULL OUT OF HOLE TO 674' Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 4 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 12:00 3.00 DRILL P SURF RACK BACK 5 STANDS OF HWDP,AND 1 ;STAND OF 6 3/4 DRILL COLLARS,CONTINUE TO LAY DOWN REST OF BHA. 12:00 12:30 r 0.50 CASING P 1 SURF SERVICE TOP DRIVE AND DRAWWORKS 12:30 13:30 1 1.00 CASING ' P SURF CLEAN AND CLEAR RIG FLOOR,LAY DOWN SHORT TOOLS 13:30 - 14:00 0.50 CASING P I SURF MOBILIZE LONG BALES AND CASING TOOLS AND CEMENT HEAD TO RIG FLOOR 114:00 - 15:00 1.00 CASING P SURF DRAIN STACK, MAKE DUMMY RUN WITH HANGER AND LANDING JOINT 15:00 - 17:30 2.50 CASING j P SURF RIG UP TO RUN 13 3/8 SURFACE CASING ---H- ;17:30 - 00:00 6.50 CASING i P SURF PRE JOB WITH ALL HANDS, RUN 13 3/8"68# L-80 CASING FORM SURFACE TO 1658' CIRCULATING EVERY TEN JOINTS DOWN. CASING RUN AS FOLLOWS: HES FLOAT SHOE 2 JTS 13 3/8"68#L-80 BTC CASING(#1-#2) HALLIBURTON 13 3/8"FLOAT COLLAR 2 JTS 13 3/8"68#L-80 BTC CASING(#3-#4) 1 JTS 13 3/8"68#L-80 BTC PUP JT ! 1 1 JTS 13 3/8"68#L-80 BTC PUP JT 36 JTS 13 3/8"68#L-80 BTC CASING(#5- -- #40) CENTRALIZERS: 1 SPIRAGLIDERS W/ RING 5'ABOVE SHOE ION JT#1 1 ON JOINT#3 LOCKED DOWN MID JOINT I 1 SOLID BLADE FREE-FLOATING ON JT #34, #35,#36 TOTAL 5 CENTRALIZERS RUN AND 4 STOP RINGS BAKER-LOK SHOE-TRACK JTS#1-3. BOL 2000 I UTILIZED ON ALL OTHER CONNECTIONS AND CASING TORQUED TO POSITION. 8/15/2011 00:00 - 03:00 3.00 I CASING P SURF CONTINUE TO RUN 133/8 687/CASING FROM 1658'TO 2502' AS FOLLOWS: 19 JTS 133/8"68#L-80 BTC CASING(#41 - #59) i 133/8"68#L-80 BTC HANGER P X P PUP JT. 113 3/8"FLUTED CASING HANGER I I 13 3/8"LANDING RING TO ROTARY TABLE LAND CASING ON DEPTH PICK UP WEIGHT=200K,SLACK OFF WEIGHT=160K, R/D FRANKS TOOL RIG UP 13 3/8 CEMENT HEAD 03:00 - 05:00 2.00 CEMT P SURF CIRCULATE AND CONDITION MUD INITIAL CIRCULATING PRESSURE @ 4 BPM 150 PSI Printed 9/26/2011 11:37:40AM North America-ALASKA- BP Page 5 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations n (hr) (ft) k 05:00 - 10:00 5.0.0 0 CEMT P SURF PRE JOB WITH ALL HANDS INVOLVED ON ( . CEMENT JOB, PUMP 5BBL OF 10 PPG MUD 4 PUSH AHEAD TO FLOOD LINES, SHUT DOWN cy' TEST LINES TO 3500PS1. BLEED OFF OPEN CEMENT HEAD, PUMP 95 BBLS OF 10 PPG MUD PUSH AT 5 BPM 250 PSI.SHUT DOWN DROP BOTTOM PLUG KICK OUT WITH WITH 578 BBLS(1808 SX)OF 11 PPG LEAD SLURRY WITH A YIELD OF 1.85 CUFT/SX 750 PSI.SAW_ BOTTOM PLUG LAND AT 389 BBLS OF LEAD PUMPED.AT SHUT DOWN BATCH UP TUB OF 15.8 PPG TAIL SLURRY. PUMP 72 BBLS OF (368 SX)OF CLASS G 15.8 PPG OF TAIL_ CEMENT WITH A YIELD OF 1.16 CUFT/SX.AT 850 PSI.SHUT DOWN DROP TOP PLUG. KICK OUT BOTTOM PLUG WITH 10 BBLS OF FRESH • WATER FROM CEMENTERS.SHUT DOWN TURN OVER TO RIG DISPLACE WITH 355 BBLS OF 9.3 DRILL PLEX MUD @ 8 BBL/MIN AT 350 PSI.PUMP PLUG. PRESSURE UP TO 1000 PSI HOLD FOR 5 MINUTES BLEED •PRESSURE OFF AND CHECK FLOATS. • FLOATS HELD.NO CEMENT SEEN AT • :SURFACE CIP(D.0920 AND TOC TO BE OFTFRMINFO RFFORF TOP.IFR 10:00 - 12:00 2.00 CEMT P ' SURF REMOVE CEMENT HEAD AND CROSSOVER. DRAIN STACK,BACK OUT LANDING JOINT AND LAY DOWN,CLEAN AND CLEAR CASING 'EQUIPMENT FROM FLOOR. 12:00 - 13:00 1.00 CEMT P SURF FLUSH SURFACE BAG AND RISER. 13:00 - 16:30 3.50 CEMT P SURF NIPPLE DOWN FLOWLINE AND RISER AND DIVERTER LINE.BREAK APART SURFACE BAG AND SPOOL,REMOVE FROM CELLAR. CLEAN PITS. 16:30 - 22:00 5.50 CEMT N CEMT I SURF WAIT ON EQUIPMENT FOR TOP JOB. CHANGE OUT CLIPPER SEALS IN BOTH MUD PUMPS. PAINT CAT#2 EXHAUST STACK. WORK ON MAINTENANCE.CONTINUE TO CLEAN PITS. 22:00 - 00:00 2.00 CEMT N CEMT SURF CUT WINDOW IN THE CONDUCTOR TO RUN IN 1.25"HYDRIL PIPE FOR TOP JOB. 8/16/2011 00:00 - 00:30 0.50 CEMT N CEMT SURF CONTINUE TO PICK UP 1.25"HYDRIL PIPE FOR TOP JOB AND RUN IN 20"X 13 3/8" ANNULUS,283'TAG OBSTRUCTION. 00:30 - 02:00 1.50 CEMT N CEMT SURF RIG UP AND PUMP WATER THROUGH 1.25" HYDRIL DOWN ANNULUS TAKING RETURNS TO CELLAR BOX STAGING PUMPS TO 5 BPM 380PSI.TOTAL WATER PUMPED 210 BBLS. 02:00 - 04:30 2.50 CEMT N CEMT SURF PRE JOB WITH ALL HANDS,PUMP 165 BBLS (501 SX)OF 11 PPG 1.85 CUFT/SX YIELD TOP JOB CEMENT @ 4 BPM 1350 PSI.BEGIN GETTING CEMENT TO SURFACE AT 122 BBLS CONTINUE PUMPING RECEIVED 43 ADDITIONAL BBLS TO SURFACE.CIP 0425 TOC SURFACE. 04:30 - 06:00 1.50 CEMT N CEMT SURF 1 FLUSH LINE AND LAY DOWN 1.25"HYDRIL PIPE. Printed 9/26/2011 11:37:40AM North America-ALASKA- BP Page 6 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 09:30 I 3.50 WHSUR N CEMT SURF WELD 4"X 26"SECTION OF THE CONDUCTOR REMOVED FOR THE TOP JOB. REMOVE THE BOTTOM RAMS AND INSTALL THE ACCUMULATOR LINES ON THE STACK. REMOVE BOLTS FROM THE ADAPTOR I FLANGE TO FIT THE WELL HEAD. TAKE ON LSND AND CHANGE OUT THE SCREENS. 09:30 - 12:00 2.50 f WHSUR P SURF INSTALL FMC 13-3/8"BIG BORE WELLHEAD I AND ALIGN. APPLY STACK FOR WEIGHT TO ! SEAT THE WELLHEAD. TEST THE VOID, TIGHTEN THE STACK TO THE WELLHEAD CONNECTION TO SPEC. CONNECT THE CHOKE LINE TO THE BOP STACK. 12:00 - 19:00 7.00 WHSUR P SURF CONTINUE TO NIPPLE UP BOP AND CHOKE HOSE. HOOK UP SECONDARY ANNULUS VALVES. INSTALL NEW 2-7/8"X 5"VBR'S IN THE BOTTOM RAM CAVITY. NIPPLE UP THE RISER AND FLOW LINE. 19:00 - 21:00 2.001 BOPSUR P SURF FLUSH LINES AND DRAIN THE STACK. FUNCTION TEST THE RAMS AND INSTALL THE TEST PLUG. RIG UP FOR THE BOPE TEST. 21:00 - 00:00 3.00 BOPSUR P SURF FILL THE STACK. PUMP 6 BBLS INTO THE GAS BUSTER TO FILL IT. PERFORM BODY I TEST ON THE BOP STACK AND CHOKE ' MANIFOLD TO 3500 PSI. CHOKE VALVE 13 LEAKING AND CHANGED OUT. 8/17/2011 100:00 - 09:00 9.00 BOPSUR P SURF PERFORM BOPE TEST TO950 PSI I OW/3500 PSI HIGH FOR 5 MINUTES EACH,CHARTED. TEST ANNULAR WITH 5"TEST JOINT TO 250 LOW PSI/3500 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TEST. TEST THE UPPER 3-1/2"X 6"RAMS WITH 5"TEST JOINT TO 250 LOW PSI/3500 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TEST. TEST THE LOWER 2-7/8"X 5"RAMS WITH 5"TEST JOINT TO 250 LOW PSI/3500 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TEST. TEST CHOKE MANIFOLD AND ASSOCIATED VALVES TO 250 LOW PSI/3500 PSI HIGH FOR I5 MINUTES EACH TEST. GOOD TESTS. TEST 2 FOSV AND IBOP TO 250 LOW PSI/3500 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TEST. PERFORM ACCUMULATOR TEST. PERFORM MANUAL CHOKE AND HYDRAULIC I CHOKE DRAW DOWN TESTS. GOOD TESTS. STATES RIGHT TO WITNESS WAIVED BY MATT HERRERA. TEST WITNESSED BY BY WSL CHRIS KOBUCK, BP ENGINEER JACOB THOMPSON,AND DOYON TOURPUSHER MIKE SMITH. 09:00 - 09:30 0.50 CASING P SURF RIG DOWN BOP TESTING EQUIPMENT AND INSTALL THE WEAR BUSHING AND 5" ELEVATORS. 09:30 - 10:00 0.50 CASING P SURF SERVICE AND INSPECT THE TOP DRIVE, ! i DRAW WORKS AND BLOCKS. 10:00 - 10:30 0.50 CASING P I SURF PERFORM AAR ON BOP TEST AND HOLD ! PJSM ON PICKING UP DRILL PIPE. 10:30 - 11:30 I 1.00 CASING P SURF PICK UP 5"DRILL PIPE FROM THE SHED TO 950'. 11:30 - 12:00 0.50 CASING P SURF RIG UP TO TEST 13-3/8"CASING. Printed 9/26/2011 11:37:40AM North America-ALASKA- BP Page 7 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task 1 Code NPT NPT Depth Phase Description of Operations (hr) (ft) ' 12:00 - 13:00 1.00 CASING P SURF DECISION MADE TO RIG DOWN CASING PRESSURE TEST EQUIPMENT AND PULL OUT OF THE HOLE WITH 5"DRILL PIPE RACKING 1 1 I IT BACK IN THE DERRICK. 13:00 - 13:30 � 0.50 t CASING P SURF RIG UP TO TEST 13-3/8"CASING. 13:30 15:00 1 1.50 1 CASING P SURF CLOSE THE BLINDS AND TEST THE 13-3/8" CASING TO 250 PSI LOW FOR 5 MINUTES I I AND TO 3500 PSI FOR 30 MINUTES. LOST 60 PSI IN THE FIRST 15 MINUTES AND 10 PSI IN THE SECOND 15 MINUTES. GOOD TEST. DISCUSSED PRESSURE TEST RESULTS WITH ' WTL AND GIVEN THE GO AHEAD TO CONTINUE WITH OPERATIONS. 15:00 - 15:30 0.50 I CASING P SURF RIG DOWN TESTING EQUIPMENT AND BLOW DOWN THE SURFACE LINES. 15:30 - 16:30 1.00 CASING P ' ! SURF MOBILIZE BHA#BTO THE RIG FLOOR AND i MAKE UP THE SAFETY JOINT WITH FOSV FOR THE PIPE SHED. 116:30 - 20:30 I 4.00 CASING P SURF PJSM AND MAKE UP BHA#6 AS FOLLOWS: 11 -12.25"HUGHES VM-3 BIT SERIAL#5193892 -SP MOTOR WITH 1.5 DEGREE BEND -NON-MAG PONY DRILL COLLAR -12.25"NON-MAG STABILIZER -ARC 8 -POWERPULSE MWD I I 1 12.25"NON-MAG STABILIZER -NON-MAG BOTTLENECK CROSSOVER -(2)NON-MAG DRILL COLLARS -8.75"NON-MAG STABILIZER -NON-MAG DRILL COLLAR -SAVER/FLOAT SUB 1 -5"HWDP 1 -6-1/2"HYDRAULIC JARS I i -(13)5"HWDP I SHALLOW PULSE TEST THE MWD AT 350 GPM WITH 285 PSI. 20:30 - 22:30 2.00 CASING P ! SURF PICK UP 5"DRILLPIPE FROM THE SHED TO 2190'. -JENNINGS CREW HELD KICK WHILE TRIPPING DRILL,CRT 58 SEC. 22:30 - 23:00 0.50 CASING P SURF RUN IN THE HOLE TO2285'AND WASH DOWN TO TAG CEMENT AT 2372'. UP WT. 127K/ I DOWN WT.95K/ROT.WT. 110K PUMP AT I 1 400 GPM WITH 810 PSI ROTATING AT 30 RPM 'WITH 5K TORQUE. 23:00 00:00 1.00 CASING ' P . I SURF DRILL CEMENT STRINGERS FROM 2372'TO THE FLOAT COLLAR AT 2416'. DRILL UP PLUGS AND FLOAT COLLAR TO 2420'. UP WT. 127K/DOWN WT.95K/ROT WT. 110K PUMPING AT 400 GPM WITH 780 PSI AND 5K !�I TORQUE OFF AND 5-10K TORQUE ON. ROTATE AT 30 RPM WITH 10-12K WOB. 8/18/2011 00:00 - 03:00 3.00 CASING P • SURF DRILL CEMENT FROM 2416'TO 2510'THEN I 1RILLtUPP 20'aF NEW FORMATION TO 2530'. UP WT. 127K/DOWN WT.95K/ROT WT. 110K , PUMPING AT 400 GPM WITH 780 PSI AND 5K TORQUE OFF AND 5-10K TORQUE ON. ROTATE AT 30 RPM WITH 10-12K WOB. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 8 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 05:30 2.50 DRILL P SURF DISPLACE WELL FROM DRILL PLEX TO 8.8 1 PPG LSND AT 400 GPM WITH 340 PSI. CIRCULATE ADDITIONAL BOTTOMS UP AFTER GETTING GOOD LSND IS THROUGHOUT THE ENTIRE WELL. 8.8 PPG IN/OUT 05:30 - 08:00 2.50 DRILL P INTI RIG UP TO PERFORM LOT AT2503'MD.2237' ,.b TVD,WITH A MUD WT OF 8.8 PPG. PERFORM ' LOT 3 TIMES DUE TO SHOWING SIGNS OF PUSHING MUD INTO THE FORMATION NOT FRACTURING IT. STARTED PUMPING AT.5 BPM AND LAST TIME PUMPING AT 1 BPM. SURFACE PRESSURE OF 410 PSI PRODUCED I !y1W AN Q.E 1,2.32 PPG. PUMPED 4 BBLS AWAY AND RECEIVED 1.3 BBLS BACK TO SURFACE. CONSULTED WITH TOWN ODE AND ETL BEFORE CONTINUING ON WITH DRILLING OPERATIONS. 08:00 - 12:00 4.00 DRILL P t INTI DRILL FROM 2530'-2951'AT 550 GPM WITH 750 PSI OFF/910 PSI ON. ROTATING AT 60 RPM WTIH UP WT. 127K/DOWN WT. 100K/ ROT.WT. 115K. WOB 35K WITH TORQUE OF 10K ON/5K OFF. ' -AST 1.86 HRS/ART.93 HRS/ADT 2.79 HRS 12:00 - 00:00 . 12.00 ` DRILL P INTI DRILL FROM 2951'-4398'AT 650 GPM WITH , 1310 PSI OFF/1450 PSI ON. ROTATING AT 70 RPM WTIH UP WT. 141K/DOWN WT. 107K/ ROT.WT. 120K. WOB 35K WITH TORQUE OF 119K ON/6K OFF. 1-AST 1.83 HRS/ART 4.49 HRS/ADT 6.32 HRS I-JENNINGS CREW HELD D-1 DRILL, CRT 44 SEC. 8/19/2011 00:00 - 06:30 6.50 DRILL ' P INT1 _.DRILL.EROM 4398'-4835'AS PER GEOLOGY. AT 650 GPM WITH 1310 PSI OFF/1450 PSI '1,-Lbtt ON. ROTATING AT 70 RPM WTIH UP WT. • j 141K/DOWN WT. 107K/ROT.WT. 120K. WOB 35K WITH TORQUE OF 9K ON/6K OFF. AFTER MORE EVALUATION OF THE LOGS DECISION WAS MADE BY GEOLOGY TO DRILL TO 4850'. 06:30 - 10:00 3.50 DRILL P INTI BACK REAM OUT OF THE HOLE FROM 4850'- 2475'AT 700 GPM WITH 1300 PSI AND 70 RPM WITH 10K FREE TORQUE. MUD WT IN AND OUT 9.4 PPG. 10:00 - 11:30 1.50 DRILL P INTI CIRCULATE AND CONDITION THE MUD AT 700 GPM STAGING UP TO 800 GPM WITH 1200 PSI f1 ROTATING AT 100 RPM WITH 10K FREE ' TORQUE. 11:30 - 12:30 1.00 DRILL P INTI RUN IN THE HOLE FROM 2475'-4749'AND WASH DOWN FROM 4749'-4844'. PUMPING AT 500 GPM WITH 540 PSI ROTATING AT 40 RPM. 12:30 - 14:00 1.50 DRILL P INTI PUMP HI-VIS SWEEP SURFACE TO SURFACE EQUIVALENT TO 3 BOTTOMS UP TO CLEAN UP THE HOLE AT 700 GPM WITH 1210 PSI. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 9 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad r Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:OOAM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual©90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 16:00 2.00 BRILL P 1 1 INTI FLOW CHECK THE WELL FOR 10 MINUTES. ! STATIC. PULL OUT OF THE HOLE ON ELEVATORS WATCHING FOR ANY SWABBING. PUMP 25 BBL DRY JOB AND CONTINUE TO FROM 4464'-2500'. DROP 2.28"RABBIT AND STOP AT THE SHOE TO FLOW CHECK THE WELL FOR 10 MINUTES. STATIC. MUD WT IN AND OUT 9.5 PPG. 16:00 - 18:00 2.00 DRILL P INTI CONTINUE TO PULL OUT OF THE HOLE FROM 2500'-669'. FLOW CHECK THE WELL FOR 10 MINUTES. STATIC. STAND BACK THE HWDP ` AND COLLARS. 18:00 - 20:00 2.00 DRILL P INTI LAY DOWN THE STABILIZERS,MWD,ARC 8, i MOTOR,AND BIT. 20:00 - 21:00 1.00 DRILL P I INTI CLEAN AND CLEAR THE RIG FLOOR. 21:00 - 23:00 , 2.00 BOPSUR 1 P INTI DRAIN THE BOP STACK AND CHANGE OUT THE TOP RAMSFROM 3-1/2"X 6"VBRS TO / 9-5/8"CASING RAMS. TEST UPPER RAMS TO 10 250 PSI LOW/ PSI HIGH WITH 9-5/8" � TEST JOINT FOR 5 MINUTES EACH TEST. GOOD TESTS. TEST WITNESSED BY BP WSL CHRIS KOBUCK AND DOYON TOURPUSHER j HARRY GOCHENAUR. STATES RIGHT TO WITNESS THE TEST WAS WAIVED BY BOB NOBLE. 23:00 - 00:00 1.00 CASING ' P INTI LAY DOWN TEST JOINT AND RIG DOWN j I FROM PRESSURE TEST. SIM OPS. RIG UP i 9-5/8"CASING ELEVATORS,HAND SLIPS,AND CASING TONGS. 8/20/2011 100:00 - 02:00 2.00 1 CASING P INTI ,RIG UP TO RUN 9-5/8"LINER AND HOLD PJSM WITH ALL HANDS INVOLVED. 02:00 - 07:00 5.00 CASING P INTI MAKE UP 9-5/8"40#L-80 BTC LINER AS FOLLOWS: -HES 9-5/8"FLOAT SHOE -1 JT 9 5/8"40#L-80 BTC CASING(#1) -HES 9-5/8"FLOAT COLLAR -1 JT 9 5/8"40#L-80 BTC CASING(#2) -BAKER 9-5/8"LANDING COLLAR -1 JTS 9 5/8"40#L-80 BTC CASING(#3) I -60 JTS 9 5/8"40#L-80 BTC CASING(#4-#63) 9 5/8"40#L-80 BTC LINER PUP j-10 3/4"H563 X 9 5/8"BTC CROSS OVER SUB -BAKER 9 5/8"X 13 3/8"FLEX-LOCK LINER i HANGER -9 5/8"X13 3/8"ZXPN LNR TOP PACKER(PBR 11.40'X 11.0") -BAKER-LOK SHOE-TRACK JTS#1-3. TORQUE ALL CONNECTIONS TO SPEC. I-BOWSPRING CENTRALIZERS: 1 BOWSPRING W/STOP RING 5'ABOVE SHOE ON JT#1 -1 BOWSPRING MID JOINT ON JT#2 AND JT #3 -1 BOWSPRING ON COLLAR OF JOINT#62 -TOTAL 26 BOWSPRING CENTRALIZERS RUN -UP WT.245K/DOWN WT. 160K FILLING EVERY 10 JTS.ON THE WAY IN THE HOLE. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 10 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 1 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To I Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 08:00 1.00 CASING P INTI FCIRCULATE AT 3 BPM WITH 100 PSI STAGING UP TO 6 BPM WITH 130 PSI. SIM OPS MIX PAL-MIX AND ALLOW TO SET UP FOR 30 MINUTES. RIG DOWN CASING EQUIPMENT AND PREPARE TO PICK UP DRILL COLLARS AND 5"DRILL PIPE. 08:00 - 13:00 5.00 CASING P I i INT1 RUN IN THE HOLE WITH 13 STANDS OF 5" DRILL PIPE FOLLOWED BY 4 STANDS OF I HWDP,16 JOINTS OF 8.25"DRILL COLLARS, AND 5"DRILL PIPE TO SURFACE. PICK UP A SINGLE JOINT OF DRILL PIPE AND THE CEMENT HEAD. 13:00 - 15:30 2.50 CEMT P INTI STAGE UP THE PUMPS FROM 3 BPM TO 8 BPM WITH 520 PSI. UP WT.245K/DOWN WT. 160K RECIPROCATING PIPE 20'. 15:30 - 17:00 1.50 CEMT P INTI PUMP 5 BBLS OF MUD PUSH AND PRESSURE TEST THE LINES TO 4100 PSI. PUMP AN ADDITIONAL 45 BBLS OF 10.0 PPG MUD L N. itPUSH. FOLLOW WITH 92 BBLS(272 SX. ��'$ YIELD 1.9 CUFT/S K)OF 11.0 PPG DEEPCRETE LEAD CEMENT. SHUT DOWN AND BATCH UP 15.8 PPG(696$X YIELD 1.17 CUFT/SK)TAIL CLASS G CEMENT. PUMP 143 BBLS OF TAIL AND SHUT DOWN AND DROP THE TOP PLUG. II KICK OUT WITH 10 BBLS OF WATER FROM THE CEMENTERS. TOC-2316' CIP-17:05 17:00 - 18:00 1.00 CEMT P 4 INTI DISPLACE WITH 9.4 PPG LSND FROM THE RIG. SAW PLUG LATCH AT 19 BBLS DISPLACED AND TOOK 1000 PSI TO SHEAR. CONTINUE DISPLACING AT 7 BPM WITH 350 PSI RECIPROCATING PIPE 20'STROKES. QUIT RECIPROCATION AT 180 BBLS DISPLACED AND SLOW PUMPS TO 4 BPM WITH 630 PSI. AT 190 BBLS DISPLACED SLOW PUMPS TO 2 BPM WITH 540 PSI. BUMP PLUG AT 202.8 BBLS DISPLACED. BUMP PLUG AND PRESSURE UP TO 2500 PSI AND SET DOWN 75K. PRESSURE UP TO 4000 PSI AND BLEED OFF AND CHECK THE FLOATS. FLOATS HELD. PICK UP TO SET LINER TOP PACKER WITH 85K. BROKE OFF CEMENT 'LINE AND RECONFIRM FLOATS. HELD. RECONFIRM LINER SET WITH ROTATION. 18:00 - 19:00 1.00 CEMT P INTI PRESSURE UP TO 1000 PSI AND PICK UP 35' TO UNSTING RUNNING TOOL AND PUMP A 25 BBL SWEEP FOLLOWED BY 925 BBLS OF I LSND MUD AT 20 BPM WITH 200 PSI CLEANING ANY CEMENT OUT OF THE 13-3/8" 1 CASING. RECEIVED 55 BBLS OF CEMENT BACK TOSURFACE,-_ 19:00 - 23:30 4.50 CEMT P INTI PULL OUT OF THE HOLE RACKING BACK 2 STANDS OF 5"DRILLPIPE,FOLLOWED BY LAYING DOWN 16 JOINTS OF DRILL COLLARS TO THE PIPESHED. STAND BACK THE 5" HWDP AND REMAINING 5"DP INTO THE • I I DERRICK. DOGS SHEARED ON BAKER RUNNING TOOL. 23:30 - 00:00 0.50 CEMT P INTI CLEAR ALL CASING EQUIPMENT AND BAKER TOOLS FROM THE RIG FLOOR. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 11 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 . Rig Contractor: DOYON DRILLING INC. UW'I: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations ( (ft)- ' CLEAR FLOOR OF ALL UN-NEEDED TOOLS 8/21/2011 00:00 01:00 1.0.00 CEMT P � INTI �' • FOR UPCOMING OPERATIONS AND CLEAN UP AFTER THE CEMENT JOB AND TRIPPING OUT OF THE HOLE. 01 00 - 01:30 1 0.50 BOPSUR P I INTI PULL WEAR RING AND CLOSE THE BLIND RAMS. DRAIN THE STACK IN PREPARATION TO CHANGE OUT THE TOP RAMS. 01:30 - 05:00 3.50 BOPSUR P INTI CHANGE OUT THE UPPER RAMS-FROM 9-5/8" CASING RAMS TO 371/2"X 6"VBRS_ 05:00 - 11:00 6.00 BOPSUR P INTI TEST THE LOWER 2-7/8"X 5"VBRS,UPPER "X 6"VBRS, D RAO ta/kM 3p-s11/21:OW/3500 PSIANHIGHDAFOR TV5 MINUTESLVE T250 EACH TEST WITH 4"TEST JOINT. ALL TEST j CHARTED. WITNESSED BY BP WSL CHRIS j KOBUCK AND DOYON TOURPUSHER HARRY i GOCHENAUR. STATES RIGHT TO WITNESS WAIVED BY LOU GRIMALDI. TROUBLESHOOTING ANNULAR PREVENTER. 11:00 - 12:00 1.00 BOPSUR N i INTI PJSM AND BEGIN PREPARATIONS TO BREAK I OPEN THE ANNULAR TO TROUBLESHOOT _ THE ISSUE. -r — i-- SEAL 12:00 - 21:30 9.50 BOPSUR ! N i INTI PICK UP 1 JT.OF HWDP AND PICK UP THE POTATO MASHER. TAKE OFF THE CAP ON THE ANNULAR. PULL THE ELEMENT AND PISTON OUT. INSTALL NEW SEALS ON THE PISTON AND REINSTALL THE ELEMENT AND CAP. INSTALL THE BELL NIPPLE, RISER AND FLOW LINE. 21:30 - 23:00 1.50 BOPSUR P INTI 1TEST THE ANNULAR TO 250 PSI LOW/3500 PSI HIGH FOR 5 MINUTES EACH TEST WITH , 4"TEST JOINT.TEST UPPER 3-1/2"X 6"VBRS - TO 250 PSI LOW/3500 PSI HIGH FOR 5 MINUTES EACH TEST WITH 5"TEST JOINT. 1 ;TEST 4"FOSV TO 250 PSI LOW/3500 PSI HIGH FOR 5 MINUTES EACH TEST. ALL !TESTS CHARTED. WITNESSED BY BP WSL CHRIS KOBUCK AND DOYON TOURPUSHER HARRY GOCHENAUR. STATES RIGHT TO WITNESS WAIVED BY LOU GRIMALDI. 23:00 - 23:30 0.50 CASING P INTI PULL TEST PLUG AND INSTALL THE WEAR RING. RIG UP TO PRESSURE TEST THE 13-3/8"AND 9-5/8"CASING TO 250 PSI LOW/ 3500 PSI HIGH. . ..- 23:30 - 00:00 1 0.50 CASING P INTI I PURGE THE KILL LINE,SHUT IN THE BLIND/SHEAR RAMS AND BLEED OFF j . THROUGH THE CHOKE LINE. PRESSURE UP . AND TEST THE 13-3/8"AND 9-5/8"CASING TO 250 PSI LOW FOR 5 MINUTES. GOOD TEST. 8/22/2011 00:00 - 01:00 1.00 CASING P INTI PRESURE UP 13-3/8"X 9-5/8"CASING TO 3600 PSI WITH 76 STROKES(7.6 BBLS). , PRESSURE AT 3600 PSI WHEN PUMPING SHUT DOWN. AFTER 15 MINUTES !PRESSURE BLED DOWN TO 3525 PSI. AFTER I 130 MINUTES PRESSURE BLED DOWN TO 3505 I PSI. GOOD TEST. BLED BACK 7.4 BBLS OF FLUID AFTER TEST WAS ENDED. WTL APPROVED TEST. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 12 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:00 - 04:00 3.00 ' CASING P • INTI RIG UP AND RUN BULLNOSE,12.25" STABILIZER,13-3/8"RTTS ON NON-MAG DRILL COLLARS,4 STANDS OF HWDP,AND !5"DRILL PIPE AND TAG UP ON 9-5/8"LINER TOP. BREAK OFF 5"DRILL PIPE AT THE FLOOR, INSTALL 4.5"IF FOSV,SIDE ENTRY SUB AND SCREW INTO THE TOP DRIVE. 04:00 - 10:30 I 6.50 CASING P INTI RIG UP TO PERFORM NEGATIVE PRESSURE_ TEST ON THE 9-5/8"LINER TOP PACKER. CIRCULATE SURFACE TO SURFACE AT 6 • BPM WITH 250 PSI. OBTAIN SLOW PUMP RATES AT 20 SPM AND 30 SPM. RIG UP AND REVERSE CIRCULATE TO ACHIEVE SPRS AT 20 SPM AND 30 SPM AS WELL. SET THE RTTS AND PRESSURE TEST ON THE BACKSIDE TO 1000 PSI. RIG UP LRS AND PRESSURE TEST THE LINES TO 500 PSI LOW /2500 PSI HIGH FOR 5 MINUTES EACH TEST. UNSEAT THE RTTS AND PUMP 38 BBLS OF DIESEL WITH A U-TUBE PRESSURE OF 290 PSI. SET THE RTTS AND BLEED OFF THE PRESSURE AND RIG UP A DIGITAL SENSOR TO MONITOR FOR PRESSURE BUILD UP FOR 30 MINUTES. NO FLOW OR PRESSURE SEEN AT SURFACE. GOOD TEST. REVERSE CIRCULATE OUT THE DIESEL AND MONITOR THE WELL FOR 10 MINUTES. STATIC. RIG DOWN ALL TEST EQUIPMENT. WTL li APPROVED TEST. MUD WT IN AND OUT 9.4 PPG 10:30 - 11:30 1.00 CASING P INTI RIG UP TO CIRCULATE SURFACE TO SURFACE AT 8 BPM WITH 210 PSI FCP. BLOW DOWN THE TOP DRIVE AND ALL „SURFACE EQUIPMENT. 11:30 - 14:00 2.50 CASING ; P INTI MONITOR THE WELL. STATIC. PULL OUT OF :THE HOLE FROM 2291'-363'. MONITOR THE WELL. STATIC. STAND BACK THE 5"HW DP. MAKE SERVICE BREAK ON THE 13-3/8"RTTS AND LAYDOWN THE STABILIZER AND MULE SHOE. CLEAR THE RIG FLOOR OF ALL CROSSOVERS AND STABILIZER. 14:00 - 16:00 2.00 • CASING P INTI MAKE UP CROSSOVER AND PICK UP 4"DRILL PIPE FROM THE SHED TO 274'. PULL OUT OF THE HOLE AND RACK BACK IN THE DERRICK. 16:00 - 16:30 0.50 CASING P INTI PICK UP CROSSOVERS FOR THE UPCOMING • TAPERED STRING AND THE GHOST REAMERS. 16:30 - 19:30 3.00 CASING P INTI i MAKE UP MOTOR,NON-MAG DRILL COLLARS, JARS,HWDP,AND SURFACE TEST THE MWD •I TOOL. GOOD TEST. 19:30 00:00 1 4.50 CASING P INTI PICK UP 4"DRILLPIPE AND SINGLE IN THE t HOLE TO 3410'. FILLING PIPE EVERY 2000'. 8/23/2011 00:00 - 02:00 2.00 CASING P INTI CONTINUE RUNNING IN THE HOLE PICKING - _ i UP 4"DRILL PIPE FROM 3410'-4528'. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 13 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:OOAM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 04:00 2.00 1 CASING P INTI SLIP AND CUT 60'OF DRILLING LINE. 1 SERVICE THE TOP DRIVE, DRAW WORKS, I BLOCKS, BRAKES AND CALIBRATE THE BLOCK HEIGHT. SPR: DEPTH 4,528'MD,3,226'TVD,MW 9.4 PPG MP#1:20 SPM:210 PSI;30 SPM:480 PSI MP#2:20 SPM:280 PSI;30 SPM:460 PSI 04:00 - 07:30 3.50 CASING P INTI WASHDOWN FROM 4528'WTIH 450 GPM AND 1840 PSI. ROTATING AT 40 RPM WITH 5-6K FREE TORQUE AND TAG LANDING COLLAR AT 4762'. UP WT. 140K/DOWN WT.87K/ ROT.WT. 109K.DRILL SHOETRACK AND 20' ' NEW HOLE TO 4,870'. 07:30 - 08:30 1.00 CASING P INTI CIRCULATE AND CONDITION MUD 1 j -450 GPM,1,800 PSI -40 RPM,TQ 8K MUD WT IN AND OUT:9.4 PPG 08:30 - 10:30 1 2.00 CEMT P INTI RACK BACK 1 STAND OF DRILLPIPE RIG UP AND PERFORM LOT j I PUMP AT 0.5 BPM FLUID INJECTING INTO FORMATION BLEED OFF PRESSURE AND PERFORM LOT AGAIN -SHOE DEPTH 4,848'MD;3,423'TVD 9.4 PPG MUD WT IN HOLE i -PUMP AT 1.0 BPM -PRESSURE TREND DEVIEATED AT 850 PSI --TREND INDICATES FLUID INJECTING INTO j FORMATION CALCULATED EMV1L14 2fEa ' --GIVES 58.6 BBL KICK TOLERANCE AT PLANNED TD 1-4 BBLS TO REACH TEST PRESSURE -1.5 BBLS BLED BACK TO TRIP TANK RECEIVED AUTHORIZATION TO PROCEED PER PHONE CONVERSATION WITH ODE RYAN CIOLKOSZ 10:30 - 12:00 1.50 DRILL P INT2 DIRECTIONALLY DRILL FROM 4,870'TO 5,038' MD -PUW 165K,SOW 93K, ROT 115K , -475 GPM,2,010 PSI ON,1,860 PSI OFF -40 RPM,TQ 10K ON,8K OFF 1 10K WOB -MUD WT IN 9.3 PPG, MUD WT OUT 9.3 PPG 1 ART:0.80,AST:0.32,ADT 1.12 12:00 - 13:00 1.00 DRILL P INT2 DIRECTIONALLY DRILL FROM 5,038'TO 5,196' MD -PUW 175K,SOW 94K, ROT 114K I-460 GPM,2,300 PSI ON,2,040 PSI OFF . -40 RPM,TQ 10K ON,8K OFF -15K WOB I -MUD WT IN 9.3 PPG,MUD WT OUT 9.3 PPG 13:00 - 13:30 0.50 DRILL P f INT2 !FLOW CHECK WELL FOR 10 MINUTES -NO FLOW POOH TO 4"DRILLPIPE ' -RACK BACK 5"DRILLPIPE IN DERRICK 13:30 - 14:00 0.50 DRILL P INT2 RIH ON 4"DRILLPIPE TO 5,196'MD Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 14 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual©90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 00:00 10.00 DRILL P I INT2 DIRECTIONALLY DRILL FROM 5,196'TO6,175' MD -PUW 210K,SOW 106K, ROT 135K -550 GPM,3,000 PSI ON,2,840 PSI OFF -40 RPM,TQ 11K ON,10.5K OFF 15K WOB -MUD WT IN 9.2 PPG,MUD WT OUT 9.2 PPG ART:3.15,AST:4.06,ADT 7.21 • ADT FOR LAST 24 HRS: 8.33 SPR @ 20:30: DEPTH 5,848'MD,4,170'TVD, MW 9.2 PPG MP#1:20 SPM:250 PSI;30 SPM:330 PSI , MP#2:20 SPM:270 PSI;30 SPM:350 PSI 8/24/2011 00:00 - 12:00 I 12.00 DRILL P INT2 DIRECTIONALLY DRILL FROM 6,175'TO 7,231' MD '• I -PUW 243K,SOW 117K, ROT 155K -550 GPM,3,010 PSI ON,2,800 PSI OFF i -40 RPM,TQ 14K ON,14K OFF -20K WOB -MUD WT IN 9.2 PPG,MUD WT OUT 9.2 PPG -CALCULATED CLEAN HOLE ECD 9.69 PPG, ACTUAL ECD 9.81 PPG ART:4.20,AST:2.53,ADT 6.73 SPR @ 01:10: DEPTH 6,320'MD,4,558'TVD, MW 9.2 PPG , I i MP#1:20 SPM:260 PSI;30 SPM:340 PSI MP#2:20 SPM:260 PSI;30 SPM:350 PSI • SPR @ 08:45: DEPTH 6,983'MD,5,115'TVD, MW 9.2 PPG MP#1:20 SPM:260 PSI;30 SPM:340 PSI MP#2:20 SPM:270 PSI;30 SPM:340 PSI HELD UNANNOUNCED D2 KICK WHILE DRILLING DRILL Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 15 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) ' Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:00AM I Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date 1 From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 00:00 12.00 DRILL P INT2 'DIRECTIONALLY DRILL FROM 7,231'TO 7,845' MD I -INCREASE MUD WEIGHT FROM 9.2 PPG TO 10.7 PPG ON-THE-FLY FROM 7,376'TO 7,539' I MD -PUW 235K,SOW 124K,ROT 158K -550 GPM,3,550 PSI ON,3,300 PSI OFF 40 RPM,TQ 15K ON,14K OFF I -20K WOB -MUD WT IN 10.7 PPG, MUD WT OUT 10.7 PPG -CALCULATED CLEAN HOLE ECD 11.28 PPG, ACTUAL ECD 11.57 PPG ART:3.78,AST:4.92,ADT 8.70 ADT FOR LAST 24 HRS: 15.43 SPR @ 17:50: DEPTH 7,560'MD,5,593'TVD, MW 10.7 PPG MP#1:20 SPM:330 PSI;30 SPM:420 PSI MP#2:20 SPM:330 PSI;30 SPM:430 PSI I HELD UNANNOUNCED D2 KICK WHILE 1_ I DRILLING DRILL 8/25/2011 00:00 - 06:00 6.00 DRILL P INT2 DIRECTIONALLY DRILL FROM 7,845'MD -PUW 242K,SOW 124K, ROT 160K I-550 GPM,3,400 PSI ON,3,500 PSI OFF I-40 RPM,TQ 12K ON,14K OFF ' -25K WOB I-MUD WT IN 10.7 PPG,MUD WT OUT 10.7 PPG 8/26/2011 00:00 - 06:00 1 6.00 DRILL P I INT2 i DIRECTIONALLY DRILL FROM 8.981' TO 9 256' MD -PUW 250K,SOW 125K, ROT 166K I-550 GPM,3,650 PSI ON,3,530 PSI OFF I-80 RPM,TQ 19K ON,19K OFF I-5-7K WOB MUD WT IN 10.7 PPG,MUD WT OUT 10.7 PPG ART 5.42,AST 0.45,ADT 5.87 SPR @ 01:50: DEPTH 9,075'MD,6,640'TVD, MW 10.7 PPG MP#1:20 SPM:280 PSI;30 SPM:380 PSI MP#2:20 SPM:290 PSI;30 SPM:390 PSI _ TD CALLED BY GEOLOGIST AT 9,256'MD 06:00 - 15:00 9.00 DRILL P INT2 OBTAIN SLOW PUMP RATES SPR @ 06:45: DEPTH 9,256'MD,6,739'TVD, MW 10.7 PPG MP#1:20 SPM:270 PSI;30 SPM:370 PSI MP#2:20 SPM:270 PSI;30 SPM:360 PSI , MAD PASS KUPARUK INTERVAL FROM 9,255' TO 8,910'MD -500 GPM,2,800 PSI ' -50 RPM,TQ 21K I-50 FT/HR PULLING SPEED —2 DATA POINTS PER FOOT REAL-TIME I DATA RESOLUTION Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 16 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:OOAM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ; (ft) i715:00 - 22:00 7.00 DRILL P INT2 MAD PASS FROM 8,910'TO 6,715'MD i-550 GPM,3,000 PSI I-50 RPM,TQ 21K -600 FT/HR PULLING SPEED --1 DATA POINT PER FOOT RECORDED DATA 1 RESOLUTION -10.7 PPG MUD WT IN AND OUT 22:00 - 00:00 2.00 DRILL P INT2 FLOW CHECK WELL FOR 10 MINUTES -WELL SLOWLY LOSING FLUID -STATIC LOSSES CALCULATED AT 4 BBUHR RIH FROM 6,715'TO 8,981'MD -WELL TAKING FLUID DURING TRIP 8/27/2011 00:00 - 00:30 0.50 DRILL P INT2 REAM DOWN FROM 8,981'TO 9,257'MD -550 GPM,3,300 PSI -50 RPM,TQ 17K 00:30 - 02:00 1.50 DRILL P INT2 PUMP LCM PILL TO CONTROL LOSSES CIRCULATE SURFACE-TO-SURFACE -ROTATE AND RECIPROCATE PIPE -520 GPM,3,380 PSI -50 RPM,TQ 15K -HEAVY CUTTINGS LOAD WITH LCM PILL BACK AT SURFACE -CONTINUED CIRCULATING UNTIL SHAKERS i I CLEAN UP 1 -PUMPED 2 BOTTOMS-UP VOLUMES -1 -DYNAMIC LOSSES 10 BBUHR 02:00 - 02:30 0.50 DRILL ' P INT2 OBTAIN SLOW PUMP RATES AT 9,171'MD MP#1:20 SPM:300 PSI;30 SPM:390 PSI MP#2:20 SPM:300 PSI;30 SPM:390 PSI FLOW CHECK WELL FOR 10 MINUTES -WELL TAKING FLUID -STATIC LOSSES CALCULATED AT 1 BBLJHR I OBTAIN PICK-UP WEIGHT TO CHECK FOR DIFFERENTIAL STICKING AFTER 10 MINUTE ' FLOW CHECK -PUW 285K 02:30 - 03:30 1.00 DRILL P INT2 PERFORM CORRELATION PASS FROM 9,170' TO9,130'MD -550 GPM,3,100 PSI 1-NO ROTATION 1-50 FT/HR PULLING SPEED TO MATCH RESOLUTION FROM MAD PASS -4'DEPTH CORRECTION REQUIRED PERFORM 20 MINUTE DIFFERENTIAL STICKING TEST -PUW 263K,SOW 118K, ROT 168K -50 RPM,TQ 17K 03:30 - 12:00 8.50 DRILL P INT2 BEGIN KUPARUK RESERVOIR PRESSURE- SAMPLING WITH STETHOSCOPE TOOL -INTERVAL RANGE FROM 9,108'TO 8,913'MD -DYNAMIC LOSSES 10 BBUHR -10.7 PPG MUD WT IN AND OUT 12:00 - 12:30 0.50 DRILL P INT2 RIH FROM 8,991'TO 9,257'MD AND TAG ' BOTTOM L NO LEDGES OBSERVED ON TRIP IN FLOW CHECK WELL FOR 10 MINUTES -WELL STATIC Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 17 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 13:00 0.50 DRILL P INT2 POOH FROM 9,257'TO 8,822'MD -PUMP DRY JOB AFTER 5 STANDS 13:00 - 16:00 3.00 DRILL P INT2 POOH FROM 8,822'TO 6,991'MD -LAY DOWN 5"DRILLPIPE THROUGH PIPE SHED HELD D1 KICK WHILE TRIPPING DRILL 16:00 - 22:30 ' 6.50 DRILL P INT2 PERFORM SCHRADER BLUFF PRESSURE SAMPLING WITH STETHOSCOPE TOOL -INTERVAL RANGE FROM 6830'TO 6,410'MD - 10.7 PPG MUD WT IN AND OUT 22:30 - 00:00 1.50 DRILL P INT2 FLOW CHECK WELL FOR 10 MINUTES -STATIC LOSSES CALCULATED AT 1.5 BBL/HR POOH FROM 6,451'TO 5,409'MD -LAY DOWN 5"DRILLPIPE THROUGH PIPE SHED 8/28/2011 00:00 - 00:30 0.50 DRILL P .I INT2 CONTINUE POOH FROM 5,409'TO 5,123'MD -LAY DOWN 5"DRILLPIPE THROUGH PIPE SHED 00:30 - 01:30 1.00 DRILL P INT2 RIH WITH REMAINING 5"DRILLPIPE STANDS FROM 5,123'TO 6,411'MD -10.7 PPG MUD WT IN HOLE 01:30 - 03:30 2.00 DRILL P INT2 FLOW CHECK WELL FOR 10 MINUTES -WELL STATIC POOH FROM 6,411'TO 5,089'MD -LAY DOWN 5"DRILLPIPE THROUGH PIPE SHED -PUMP DRY JOB AFTER 5 STANDS 03:30 - 04:30 1.00 DRILL P INT2 CHANGE ELEVATORS FROM 5"TO 4" POOH FROM 5,089'TO 4,806'MD -BIT INSIDE 9-5/8"LINER SHOE FLOW CHECK WELL FOR 10 MINUTES -WELL STATIC HELD D1 KICK WHILE TRIPPING DRILL 04:30 - 06:30 2.00 DRILL P INT2 SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE AND BLOCKS 06:30 - 09:00 2.50 DRILL P INT2 POOH FROM 4,806'TO 2,613'MD -RACK BACK 4"DRILLPIPE IN DERRICK 09:00 - 09:30 0.50 DRILL P INT2 OPEN WELL COMMANDER CIRC SUB CIRCULATE SURFACE-TO-SURFACE VOLUME -ROTATE AND RECIPROCATE DRILLSTRING -700 GPM,1,500 PSI -30 RPM,TQ 7K -10.7 PPG MUD WT IN AND OUT CLOSE WELL COMMANDER CIRC SUB 09:30 - 10:30 1.00 DRILL P . INT2 FLOW CHECK WELL FOR 10 MINUTES -WELL STATIC POOH FROM 2,613'TO 704'MD RACK BACK 4"DRILLPIPE IN DERRICK 10:30 - 14:30 4.00 DRILL P INT2 LAY DOWN BHA BIT GRADE:2-4-BT-A-X-1-CT-TD 14:30 - 16:00 1.50 CASING P INT2 PULL WEAR RING CHANGE OUT UPPER RAMS FROM 3-1/2"X 6" VBR TO 7"FIXED RAMS CLEAN AND CLEAR RIG FLOOR OF ALL BHA TOOLS AND CROSSOVERS Printed 9/26/2011 11:37:40AM North America-ALASKA- BP Page 18 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) I Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 17:00 1.00 BOPSUR P INT2 INSTALL LOWER TEST PLUG AND 7"TEST JOINT TFST 7"RAMS -250 PSI LOW,3,500 PSI HIGH -5 MINUTES EACH TEST -CHART BOTH TESTS PULL 7"TEST JOINT AND LOWER TEST PLUG 17:00 - 17:30 0.50 BOPSUR P INT2 FUNCTION TEST BOP RAMS AND ANNULAR MAKE UP SAFETY JOINT FOR UPCOMING CASING RUN 17:30 - 18:00 0.50 WHSUR P INT2 PERFORM DUMMY RUN WITH 7"MANDREL HANGER AND LANDING JOINT -MARK RIG FLOOR HEIGHT ON LANDING JOINT FOR REFERENCE 18:00 - 20:00 2.00 CASING P INT2 RIG UP TO RUN 7"CASING -INSTALL FRANKS FILL-UP TOOL -350 TON SLIPS AND ELEVATORS -SINGLE JOINT ELEVATORS -DOYON CASING TORQUE-TURN EQUIPMENT 20:00 - 20:30 0.50 CASING P INT2 HOLD PJSM WITH RIG CREW AND DOYON CASING MAKE UP 7"BTC SHOETRACK -BAKERLOK ALL SHOETRACK CONNECTIONS -MAKE UP CONNECTIONS TO MARK 20:30 - 00:00 3.50 CASING P INT2 CHECK FLOATS -FLOATS HOLDING RUN 7"26#L-80 VAM TOP HC CASING TO 1,916'MD -TORQUE TURN ALL CONNECTIONS -USE JET LUBE SEAL GUARD THREAD COMPOUND -2 CENTRALIZERS PER JOINT -NO CENTRALIZERS ON JOINT AT WINDOW DEPTH 8/29/2011 00:00 - 01:00 1.00 CASING P INT2 RUN 7"26#L-80 VAM TOP HC CASING FROM 1,916'TO 2,285'MD -TORQUE TURN ALL CONNECTIONS -USE JET LUBE SEAL GUARD THREAD COMPOUND -2 CENTRALIZERS PER JOINT 01:00 - 02:00 1.00 CASING P INT2 CIRCULATE BOTTOMS-UP AS FLOAT SHOE ENTERS 9-5/8"LINER TOP -7 BPM,430 PSI -PUW 100K,SOW 97 02:00 - 05:30 3.50 CASING P INT2 RUN 7"26#L-80 VAM TOP HC CASING FROM 2,285'TO 4,825'MD -TORQUE TURN ALL CONNECTIONS -USE JET LUBE SEAL GUARD THREAD COMPOUND -2 CENTRALIZERS PER JOINT UP TO JT 83 -1 CENTRALIZER PER JOINT FROM JT 84 TO JT 86 05:30 - 06:30 1.00 CASING P INT2 CIRCULATE BOTTOMS-UP AT 9-5/8"LINER SHOE -7 BPM,670 PSI Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 19 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 15:30 9.00 CASING P ' INT2 RUN 7"26#L-80 VAM TOP HC CASING FROM 4,825'TO 9,205'MD -TORQUE TURN ALL CONNECTIONS -USE JET LUBE SEAL GUARD THREAD COMPOUND -CIRCULATE 5 BPM FOR 3 MINUTES EVERY 5 JOINTS WHILE RUNNING THROUGH UGNU --PUSHING AWAY 13 BBLS EVERY 10 JOINTS WHILE RUNNING THROUGH UGNU -CIRCULATE 5 BPM FOR 6 MINUTES EVERY 10 JOINTS -OBTAIN PICKUP AND SLACKOFF WEIGHTS EVERY 10 JOINTS -STARTED TAKING 25K DRAG AT 8,509'MD CM1/HRZ INTERFACE --WORKED UP TO 325K UP WT BEFORE BREAKING FREE --WORK AREA WITHOUT INCREASE IN DRAG MAKE UP HANGER AND LANDING JOINT TO CASING RIH AND LAND CASING AT 9,239'MD HELD UNANNOUNCED D1 KICK WHILE TRIPPING DRILL 15:30 - 16:00 1 0.50 CASING P ; INT2 LAY DOWN FRANKS FILLUP TOOL MAKE UP CEMENT HEAD TO LANDING JOINT 16:00 - 20:00 4.00 CASING P INT2 CIRCULATE AND CONDITION HOLE FOR UPCOMING CEMENT JOB ESTABLISH CIRCULATION AT 3 BPM,600 PSI 1 11-STAGE UP RATE T06.5 BPM,1,120 PSI AND l START PACKING OFF BEGIN WORKING PIPE TO ELIMINATE PACKING OFF -START LOSING FLUID WHILE RECIPROCATING STRING 15' DROP RATE BACK TO 4 BPM AND REGAIN CIRCULATION START RECIPROCATING STRING 15-20' SLOWLY STAGE UP PUMP TO 6.5 BPM,680 PSI WITH FULL CIRCULATION Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 20 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task 1 Code NPT NPT Depth Phase Description of Operations (hr) (ft) " • 20:00 - 22:30 7 2.50 CEMT P INT2 'SEEM t3 WITH I RECIPROCATION AS FOLLOWS: ,18:30 BATCH MIX 10.5 PPG MUD PUSH II 19:00 HOLD PRE-JOB SAFETY MEETING WITH RIG CREW,SCHLUMBERGER CEMENT CREW AND CH2M HILL TRUCK DRIVERS 19:30 BATCH MIX 15.8 PPG TAIL CEMENT 19:45 TAIL CEMENT TO WEIGHT 19:56 PUMP 5 BBLS MUD PUSH II 19:59 TEST TRIPS TO 1,500 PSI-GOOD.TEST LINES TO 4,400 PSI-GOOD 20:02 PUMP REMAINING 30 BBLS 10.5 PPG MUD PUSH II AT 5 BPM,570 PSI 20:10 DROP BOTTOM PLUG. POSITIVE INDICATION PLUG LEFT CEMENT HEAD 20:11 START BATCH MIXING LITECRETE LEAD CEMENT 20:19 LITECRETE LEAD CEMENT TO WEIGHT 20:20 PUMP 93.0 BBL 11.0 PPG LITECRETE 1 LEAD CMT @ 6 BPM -11.0 PPG LITECRETE LEAD WITH GASBLOK -1.0 LB/BBL CEMNET LOST-CIRCULATION ADDITIVE DUE TO LOSSES OBSERVED WHILE CONDITIONING MUD -5.6 BPM,807 PSI TREATING PRESSURE -INCREASED TO 6.4 BPM,1,073 PSI TREATING PRESSURE 20:37 SWAP T( TAIL CEMENT.PUMP 38. BELS 15.8 PPG_CLASS-GTAILC-E{F N1 AWAY AT 5 BPM -15.8 PPG CLASS G WITH GASBLOK -1.0 LB/BBL CEMNET LOST-CIRCULATION :ADDITIVE DUE TO LOSSES OBSERVED I;WHILE CONDITIONING MUD 5.2 BPM,780 PSI TREATING PRESSURE 20:44 STOP PUMPING CEMENT 20:45 DROP TOP PLUG. POSITIVE INDICATION PLUG LEFT CEMENT HEAD 20:46 BEGIN DISPLACEMENT WITH RIG PUMP -DISPLACE WITH 10.3 PPG RHELIANT MOBM -PUMP 6.5 BPM,510 PSI 21:15 PARK HANGER IN WELLHEAD WHEN MUDPUSH EXITS FLOAT SHOE 21:16 RESUME RECIPROCATING STRING 21:20 PARK HANGER IN WELLHEAD WHEN LEAD CEMENT EXITS FLOAT SHOE 21:21 RESUME RECIPROCATING STRING 21:33 LAND HANGER IN WELLHEAD FOR REMAINDER OF DISPLACEMENT -,..LEAD CALCULATED ABOVE MC. (SAND 21:37 SLOW PUMP RATE TO 4 BPM,@ 3,280 STROKES 1,180 PSI 21:39 SLOW PUMP RATE TO 2 BPM, @ 3,375 STROKES 790 PSI FOR PLUG BUMP 21:47 BUMP PLUG @ 3,518 STROKES WITH 900 PSI -CADE PRESSURE 780 PSI --PRESSURES WITHIN 15% -INCREASE PRESSURE TO 1,500 PSI -HOLD FOR 5 MINUTES Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 21 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad - Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual©90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 121:55 BLEED OFF PRESSURE AND CHECK • FLOATS, FLOATS HOLDING CEMENT IN PLACE AT 21:47 HRS 230 BBLS LOST DURING CONDITIONING AND ~ CEMENT JOB LEAD CEMENT REACHES 500 PSI COMPRESSIVE STRENGTH IN 20 HRS 21 MIN TAIL CEMENT REACHES 1,000 PSI COMPRESSIVE STRENGTH IN 9 HRS 46 MIN CEMENT PUMPED: -281 SX OF 11.0 PPG LITECRETE LEAD AT 1.86 CUFT/SX I, -185 SX OF 15.8 PPG G-BLEND TAIL AT 1.16 CUFT/SX -EST.TOC 5,610'/ USIT WILL BE RUN LATER ON IN OPERATIONS. 22:30 23:30 1.00 I CASING P INT2 RIG UP TO CEMENT HEAD j PRESSURE TEST 7"26#L-80 VAM TOP HC jCASING -250 PSI LOW FOR 5 MINUTES i -3,500 PSI HIGH FOR 30 MINUTES --5 BBLS TO REACH TEST PRESSURE { --LOST 70 PSI IN FIRST 15 MINUTES --LOST 40 PSI IN SECOND 15 MINUTES i --EXTENDED TEST ADDITIONAL 15 MINUTES. 1- LOST 10 PSI 23:30 - 00:00 0.50 CASING P i INT2 RIG DOWN CEMENT LINE AND CEMENT HEAD LAY DOWN LANDING JOINT 8/30/2011 00:00 - 02:00 2.00 r WHSUR P ' INT2 INSTALL 7"MANDREL PACKOFF IN !WELLHEAD PER FMC FIELD TECHNICIANS RUN IN LOCKDOWN SCREWS(RILDS)AND TORQUE LOCKDOWNS TO 450 FT-LBS TEST PACKOFF -250 PSI LOW FOR 5 MINUTES -5,000 PSI HIGH FOR 15 MINUTES --5 MINUTE HIGH TEST REQUIRED PER I I PROGRAM --15 MINUTE TEST PER FMC 1 RECOMMENDATIONS SIMOPS:CLEAR RIG FLOOR OF CASING RUNNING EQUIPMENT 02:00 - 03:00 i 1.00 WHSUR P INT2 RICA UP AND ESTABLISH INJECTION DOWN., 13-3/8"-9-5/8"X 7"ANNULUS I -PUMP AT 1 BPM(10 SPM) ' I 1 -PRESSURE BROKE OVER 8 BBLS INTO INJECTION AT 600 PSI ' -INJECTED 15 BBLS TOTAL AT 600 PSI SIMOPS:CONTINUE CLEARING RIG FLOOR ' OF CASING RUNNING EQUIPMENT Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 22 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) I Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ -. (ft) 'CLOSE BLIND/SHEAR RAMS 03:00 - 04:30 1.50 BOPSUR P INT2 CHANGE UPPER RAMS FROM 7"FIXED TO I 3-1/2"X 6"VBR SIMOPS:INJECT DOWN ANNULUS -PUMP AT 1 BPM(10 SPM) -PRESSURE BROKE OVER AT 570 PSI,10 BBLS INTO INJECTION -PUMPED 15 BBLS TOTAL 04:30 - 06:00 1.50 BOPSUR P INT2 RIG UP TO PERFORM BOPE TEST SIMOPS: INJECT DOWN ANNULUS -PUMP AT 1 BPM(10 SPM) � -PRESSURE BROKE OVER AT 530 PSI,8 BBLS INTO INJECTION -PUMPED 15 BBLS TOTAL 06:00 - 12:00 6.00 BOPSUR } P } INT2 TEST BOPS 250 PSI LOW,3500 PSI HIGH, AGOCC REP.JEFF JONES WAIVED WITNESS OF TEST,TEST WITNESSED BY l TOOLPUSHER BOBBY INGRAM,AND WSL WI JOEY LEBLANC SIMOPS:INJECT DOWN ANNULUS -PUMP AT 1 BPM(10 SPM) -PRESSURE BROKE OVER AT 490 PSI,9 BBLS INTO INJECTION -PUMPED 9 BBLS TOTAL RECEIVED AUTHORIZATION TO PROCEED WITH OPERATIONS FROM WTL AT 07:30(7" CASING PRESSURE TEST) 12:00 - 13:00 1.00 BOPSUR P INT2 CLEAR RIG FLOOR OF ALL TEST EQUIPMENT, INSTALL WEAR RING SIMOPS:INJECT DOWN ANNULUS I I -PUMP AT 1 BPM(10 SPM) ! i -PRESSURE BROKE OVER AT 450 PSI,7 : BBLS INTO INJECTION ' -PUMPED 7 BBLS TOTAL 13:00 - 15:30 2.50 L STWHIP P INT2 INSTALL 5"PUP JOINT CHANGE OUT 5" SAVER SUB INSTALL 4"XT-39 SAVER SUB SIMOPS: INJECT DOWN ANNULUS -PUMP AT 1 BPM(10 SPM) ' '-PRESSURE BROKE OVER AT 450 PSI,10.5 BBLS INTO INJECTION -PUMPED 10.5 BBLS TOTAL 15:30 - 16:00 j 0.50 STWHIP P INT2 MOBILIZE BAKER TOOLS TO RIG FLOOR SIMOPS: INJECT DOWN ANNULUS -PUMP AT 1 BPM(10 SPM) -PRESSURE BROKE OVER AT 440 PSI,8 � BBLS INTO INJECTION -PUMPED 8 BBLS TOTAL 16:00 - 17:00 1.00 STWHIP P INT2 MAKE UP 43/4 DRILL COLLARS STAND BACK IN DERRICK SIMOPS: INJECT DOWN ANNULUS -PUMP AT 1 BPM(10 SPM) -PRESSURE BROKE OVER AT 450 PSI,7.5 !BBLS INTO INJECTION I-PUMPED 7.5 BBLS TOTAL Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 23 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To • Hrs Task 1 Code NPT NPT Depth I Phase Description of Operations (hr) (ft) 17:00 - 22:00 5.00 r STWHIP P INT2 MAKE UP WHIPSTOCK BHA PER BAKER FISHING AS FOLLOWS: � -CUT OFF BULL NOSE 4.5"TUBING 1 1 -5 JOINTS 4-1/2"12.6#L-80 IBT-M TUBING -4-1/2"IF PIN X 2-7/8"IF PIN CROSSOVER -7"BOTTOM TRIP ANCHOR, PINNED TO SHEAR AT 14K DOWN WT. -7"GEN II WHIPSTOCK WITH A 45K SHEAR I I PIN -6-1/8"WINDOW MILL -5-7/8"LOWER STRING MILL I -3-1/2"FLEX JOINT -6-1/8"UPPER MILL -FLOAT SUB -1 JOINT 3-1/2"HWDP I -4-3/4 MWD BIT SUB -3-1/2"IF PIN X 4"XT-39 BOX CROSSOVER -6 JOINTS 4-3/4"DRILL COLLARS -21 JOINTS 4"HWDP • TOTAL BHA LENGTH: 1,142.66' BHA LENGTH TO WINDOW MILL:902.31' • • SIMOPS: INJECT DOWN ANNULUS i -PUMP AT 1 BPM(10 SPM) PUMPED 192 BBLS(340 BBLS OF LSND INJECTED DOWN ANNULUS) 22:00 - 00:00 2.00 STWHIP P INT2 SURFACE CHECK MWD,SINGLE IN FROM 1 I SHED FROM 1142'TO 2500' I , I ! SIMOPS:LITTLE RED FREEZE PROTCT OA -225 BBLS OF DEAD CRUDE 3 BPM,1210 PSI 8/31/2011 00:00 - 04:00 4.00 STWHIP P INT2 CONTINUE PICKING UP DP AND RUNNING IN f► HOLE WITH WHIPSTOCK,FROM 2500'TO 5236' 04:00 - 07:00 3.00 STWHIP P INT2 RIH WITH WHIPSTOCK ON 4"DP STANDS FROM 5236'TO 9,143'MD L_ __- -FILL PIPE EVERY 20 STANDS 07:00 - 08:00 1.00 STWHIP P INT2 ORIENT WHIPSTOCK 38 DEGREES RIGHT-OF-HIGH-SIDE(ROHS) OBTAIN PARAMETERS -PUW 175K,SOW 125K TAG FLOAT COLLAR AT 9,151'MD , SET WHIPSTOCK ANCHOR AND SHEAR MILLS OFF WHIPSTOCK -BOLT SHEARED AT 45K DOWN WT. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 24 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 18:00 - 10.00 ' STWHIP P INT2 `OBTAIN SLOW PUMP RATES 'MP#1:20 SPM:650 PSI;30 SPM:900 PSI I I MP#2:20 SPM:650 PSI;30 SPM:890 PSI v,: '' I MILL WINDOW FROM 8.913'TO 8,924'MD -PUW 174K,SOW 112K,ROT 110K -250 GPM,2,870 PSI ON,2,810 PSI OFF -100 RPM,TQ 9K ON,6K OFF -WOB 2-4K CONTINUE DRILLING OUT FROM 8,924'TO 8,942'MD 1 I -26'NEW HOLE FROM MIDDLE WINDOW -PUW 174K,SOW 112K, ROT 110K ' I l -250 GPM,2,870 PSI ON,2,810 PSI OFF — -50 RPM,TQ 6-7K 18:00 - 19:30 1.50 STWHIP P INT2 STAND BACK ONE STAND CIRCULATE 1.5 BOTTOMS-UP -250 GPM,2,660 PSI -10 RPM,TQ 5-7K -10.3 PPG MUD WT IN AND OUT 19:30 20:30 1 1.00 STWHIP P i INT2 RIG UP AND PERFORM FIT TO 12.0 PPG EMW„ -10.3 PPG RHELIANT MOBM IN HOLE I -TVD 6,554' 1 -580 PSI REQUIRED FOR 12.0 PPG EMW -ACHIEVED 590 PSI IN 0.8 BBL -MONITORED PRESSURE FOR 10 MINUTES I -RECOVERED 0.5 BBLS WHEN BLEEDING OFF PRESSURE 20:30 - 23:30 3.00 STWHIP P ---h– INT2 FLOW CHECK WELL FOR 10 MINUTES '-NO FLOW ' POOH FROM 8,903'TO 5,088'MD I-MONITOR FIRST FIVE STANDS FOR i I SWABBING HELD D1 KICK WHILE TRIPPING DRILL 23:30 - 00:00 0.50 STWHIP P INT2 PUMP DRY JOB CONTINUE TO POOH FROM 5,088'TO 4,200' MD 9/1/2011 00:00 - 01:30 1.50 STWHIP P INT2 POOH FROM 4,200'TO 902'MD -RACK BACK 4"DRILLPIPE IN DERRICK 01:30 - 03:00 1.50 STWHIP P INT2 FLOWCHECK WELL FOR 10 MINUTES -NO FLOW POOH, LAY DOWN BHA AS FOLLOWS: -21 JOINTS 4"HWDP -6 4-3/4"DRILL COLLARS -3-1/2"IF PIN X 4"XT-39 BOX CROSSOVER j -BIT SUB ' -4-3/4 MWD ' - 1 JOINT 3-1/2"HWDP -FLOAT SUB -6-1/8"UPPER MILL --IN GAUGE I I-3-1/2"FLEX JOINT 15-7/8"LOWER STRING MILL 1--IN GAUGE I-6-1/8"WINDOW MILL --1/4"UNDER GAUGE 03:00 - 04:30 1.50 STWHIP 1 P ; 1 INT2 CLEAN AND CLEAR RIG FLOOR OF MILLING BHA COMPONENTS WASH OUT BOP STACK Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 25 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) i Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:OOAM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 - 08:00 3.50 STWHIP P INT2 MAKE UP6-1/8"PRODUCTION DRILLING BHA (BHA#9)PER SCHLUMBERGER DD AS FOLLOWS: ! -6-1/8"HYCALOG MSF513D-B1C PDC BIT I WITH 5 X 10/32"NOZZLES -AIM AD MOTOR WITH 1.50 DEGREE BEND -6"NON-MAG INTEGRAL BLADE STABILIZER -NON-MAG FLEX PONY DRILL COLLAR -NON-MAG FLEX PONY DRILL COLLAR WITH CORROSION RING ' • -IMPULSE MWD -SADN-4(DENSITY/NEUTRON TOOL) -3X NON-MAG FLEX COLLARS -WELL COMMANDER CIRC SUB ASSEMBLY -3-1/2"IF PIN X 4"XT-39 BOX CROSSOVER • -4-3/4"SMITH HYDRA-JARS • TOTAL BHA LENGTH:246.97' 08:00 - 12:00 4.00 STWHIP P INT2 RIH ON DRILLPIPE SINGLES FROM PIPE SHED FROM 247'TO 3,200'MD -FILL PIPE EVERY 20 STANDS -- 12:00 - 12:30 0.50 STWHIP P INT2 SERVICE RIG i- 12:30 - 16:00 3.50 STWHIP P 1 , - INT2 RIH ON DRILLPIPE SINGLES FROM PIPE SHED FROM 3,200'TO 6,121'MD ' I -FILL PIPE EVERY 20 STANDS 16:00 - 17:30 1.50 STWHIP P I INT2 CONTINUE TO RIH ON DRILLPIPE STANDS FROM 6,121'TO 8,818'MD I 1 FILL PIPE EVERY 20 STANDS 17:30 - 19:00 1.50 STWHIP P INT2 SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE AND BLOCKS I HELD D1 KICK WHILE TRIPPING DRILL — t: 19:00 - 22:30 3.50 STWHIP P 1 INT2 OBTAIN SLOW PUMP RATES MP#1 20 SPM:840 PSI;30 SPM: 1,200 PSI MP#2 20 SPM:840 PSI;30 SPM: 1,200 PSI • OBTAIN PARAMETERS • -PUW 168K,SOW 110K • !ORIENT MOTOR HIGH-SIDE AND EXIT 'WINDOW AT 8,912'MD(TOW) BEGIN TO DRILL AHEAD AND START TAKING • I WEIGHT AT 8,948'MD -INTEGRAL BLADE STABILIZER AT BOTTOM • • OF WINDOW I WORK STABILIZER THROUGH WINDOW AND !ATTEMPT TO WORK BHA BACK THROUGH WINDOW -OBSERVING 60K OVERPULL(PUW 225K) WORK PIPE TO PULL BHA THROUGH • WINDOW • ORIENT MOTOR HIGH-SIDE AND RUN TO TD • -NO DRAG OBSEVED AND NO TOOLS (OBSERVED HANGING UP IN WINDOW Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 26 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 ' Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs 1 Task I Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 00:00 1.50 DRILL P PROD1 D RECTIONALLY DRILL AHEAD IN 6-1/8"" I HOLE FROM 8,942'TO 9,000'MD ' PUW 165K,SOW 118K, ROT 125K I 1 -250 GPM,3,650 PSI ON,3,600 PSI OFF • -30 RPM,TQ 10K ON,8K OFF -7KWOB I -10.3PPGMUDWTINANDOUT j ART .38,AST 1.05,ADT 1.43 ADT FOR LAST 24 HRS:1.43 t 9/2/2011 00:00 - 12:00 ' 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD IN 6-1/8"HOLE FROM 9000'TO 9564' • • -PUW 178K,SOW 98K, ROT 130K j -250 GPM,3,720 PSI ON,3,500 PSI OFF j -30 RPM,TQ 10K ON,8K OFF,15K WOB 1 -AST 6.25,ART 0,ADT 6.25 -10.3 PPG MUD WT IN AND OUT SPR @ 07:15 DEPTH 9,283'MD,6,696'TVD, MW 10.3 PPG 1 MP#1:20 SPM:750 PSI;30 SPM: 1040 PSI • MP#2:20 SPM:750 PSI;30 SPM:1030 PSI 12:00 - 00:00 2.00 DRILL t P PROD1 DIRECTIONALLY DRILL AHEAD IN 6-1/8"HOLE F FROM 9564'TO 10049' I -PUW 180K,SOW 108K, ROT 130K -250 GPM,3,590 PSI ON,3,310 PSI OFF 1-50 RPM,TQ 10K ON,5K OFF,15K WOB F -AST 4.09,ART 2.54,ADT 6.63 I -10.2 PPG MUD WT IN AND OUT 1ADT FOR LAST 24 HRS: 12.88 • SPR©16:30 DEPTH 9,749'MD,6,638'TVD, MW 10.2 PPG MP#1:20 SPM: 760 PSI;30 SPM: 1200 PSI • MP#2:20 SPM: 730 PSI;30 SPM: 1130 PSI iI HELD D2 KICK WHILE DRILLING DRILL 9/3/2011 00:00 12:00 12.00 i, DRILL P PROD1 DIRECTIONALLY DRILL AHEAD IN 6-1/8"HOLE FROM 10,049'TO 10,469' PUW 185K,SOW 100K, ROT 130K I-230 GPM,3,360 PSI ON,3,180 PSI OFF I 1-40 RPM,TQ 10K ON,8K OFF,15K WOB -AST 5.52,ART.58,ADT 6.10 '-10.2 PPG MUD WT IN AND OUT SPR @ 04:30 DEPTH 10,211'MD,6,636'TVD, MW 10.2 PPG MP#1:20 SPM: 750 PSI;30 SPM: 1020 PSI MP#2:20 SPM: 750 PSI;30 SPM: 1010 PSI Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 27 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:OOAM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD IN 6-1/8HOLE I FROM 10,469'TO 10,827' ' -PUW 192K,SOW 98K, ROT 130K 1 I -230 GPM,3,280 PSI ON,3,000 PSI OFF 40 RPM,TQ 11K ON,5K OFF,15K WOB -AST 4.6,ART 1.44,ADT 6.04 -10.2 PPG MUD WT IN AND OUT ADT FOR LAST 24 HRS: 12.14 SPR @ 12:30 DEPTH 10,492'MD,6,634'TVD, MW 10.2 PPG MP#1:20 SPM: 750 PSI;30 SPM: 1150 PSI MP#2:20 SPM:730 PSI;30 SPM:1150 PSI 9/4/2011 00:00 - 10:30 10.50 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD IN 6-1/8"HOLE FROM 10,827'TO 11,330' i -PUW 195K,SOW 95K, ROT 130K -230 GPM,3,590 PSI ON,3,220 PSI OFF -80 RPM,TQ 10K ON,8K OFF,15K WOB -AST 2.19,ART 3.09,ADT 5.28 -10.2 PPG MUD WT IN AND OUT SPR @ 03:00 DEPTH 10,953'MD,6,647'TVD, MW 10.2 PPG MP#1:20 SPM:770 PSI;30 SPM: 1100 PSI MP#2:20 SPM:750 PSI;30 SPM: 1120 PSI ._ 10:30 - 12:00 1.50. DRILL N DPRB 11,238.00 PROD1 LOST 4 PERCENT FLOW AND 200 PSI PUMP PRESSURE, LOSS RATE OF 60 BPH,MIX AND L PUMP 40 BBL SAFE GARB PILL AND SPOT IN I I OPEN HOLE , 140 BBLS LOST TO WELL FOR TOUR 12:00 - 13:00 1.00 DRILL P . • I PROD1 DIRECTIONALLY DRILL AHEAD IN 6-1/8"HOLE j I FROM 11,330'TO 11,393' -PUW 195K,SOW 95K, ROT 130K I-230 GPM,3,220 PSI ON,2,910 PSI OFF -80 RPM,TQ 10K ON,8K OFF,15K WOB I-AST 0,ART.42,ADT.42 I -10.2PPGMUDWTINANDOUT -ADT FOR LAST 24 HRS:5.70 -LOSING TO WELL AT 160 BPH WHILE - — ----- I— .DRILLING 13:00 - 15:00 2.00 DRILL i N DPRB 11,238.00 PROD1 MONITOR WELL STAND BACK ONE STAND BLOW DOWN TOP DRIVE,PULL OUT OF HOLE l ; ON ELEVATORS FROM 11,393'TO 8,911' , 115:00 - 19:00 'li 4.00 , DRILL N DPRB 11,238.00 PROD1 MONITOR WELL WHILE MIXING FORM-A-BLOCK PILL LOSSES 10 BPM 119:00 - 20 00 1.00 DRILL N j DPRB 11,238.00 PROD1 TRIP IN HOLE TO 10,400'PICK UP WT 180K, ' SLACK OFF WT 105K BREAK CIRCULATION 100 GPM,840 PSI 20:00 - 22:00 2.00 DRILL N DPRB 11,238.00 PROD1 PUMP FORM-A-BLOCK PILL DOWN TO BHA, CLOSE BAG,SQUEEZE PILL AWAY AT 2 BPM, INITIAL PSI 650, FINAL PRESSURE 1000, BLEED OFF PRESSURE CIRCULATE AT 244 GPM,3280 PSI,216 BPH LOSS RATE WHILE CIRCULATING 22:00 - 23:00 1.00 DRILL N DPRB 1 11 238.00 PROD1 i PULL OUT OF HOLE FROM 10,400'TO 8,911' Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 28 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:00 - 00:00 1.00 DRILL N i DPRB 11,238.00 PROD1 'MONITOR WELL WHILE MIXING FORM-A-BLOCK PILL 330 BBLS LOST TO WELL FOR TOUR 24 HR TOTAL 470 BBLS 9/5/2011 00:00 02:00 2.00 DRILL 1 N DPRB 1 11,238.00 PROD1 MONITOR WELL @ 8,900'WHILE MIXING FORM-A-BLOK LCM PILL ' LOSS RATE 10 BPH 02:00 - 02:30 f 0.50 DRILL N DPRB 11 238.00 PROD1 RUN IN HOLE FROM 8,900'TO 10,495' - 02:30 04:30 2.00 I DRILL 1 N DPRB 11,238.00 1 PROD1 ESTABLISH CIRCULATION AT 2 BPM,720 PSL 2.5 BPM,940 PSI l • PUMP FORM-A-PLUG LCM PILL AT 2 BPM,710 PSI • START CHASING PILL 27 BBLS INTO PLUG AND SPOT PILL ABOVE BHA • CLOSE ANNULAR PREVENTER AND FILL CHOKE MANIFOLD SQUEEZE FORM-A-BLOK OUT OF BHA AND INTO POSITION I -2 BPM,1,000 PSI DRILLPIPE PRESSURE;410 i PSI CASING PRESSURE • SHUT DOWN PUMP AFTER PILL IS CLEAR OF BHA AND MONITOR PRESSURE FOR 5 MINUTES. -PRESSURE DROPPED FROM 410 PSI TO 195 PSI I CONTINUE SQUEEZING PILL UNTIL PILL IS 30 BBLS OUTSIDE OF DRILLSTRING -2 BPM,1,130 PSI DRILLPIPE PRESSURE;450 PSI CASING PRESSURE SHUT DOWN AND MONITOR PRESSURE FOR 15 MINUTES -250 PSI AFTER 5 MINUTES -130 PSI AFTER 10 MINUTES I -50 PSI AFTER 15 MINUTES BLEED PRESSURE OFF BACKSIDE AND OPEN ' I ANNULAR PREVENTER OBSERVE WELL WHILE BLOWING DOWN TOP DRIVE -WELL ON SLIGHT LOSSES 04:30 - 10:30 6.00 DRILL N DPRB 11,238.00 PROD1 POOH ON ELEVATORS FROM 10,495'MD TO 8,911'MONITOR WELL AT WINDOW,WELL • TAKING FLUID, CONTINUE OUT OF HOLE TO 278'MONITOR WELL AT BHA,WELL TAKING I FLUID -TAKING LOSSES WHILE TRIPPING OUT 5BPH 10:30 - 12:00 1.50 DRILL N DPRB 11,238.00 PROD1 PJSM WITH ALL HANDS ON HANDLING NUKES.RACK BACK COLLAR REMOVE SOURCE,LAY DOWN BHA 12:00 - 13:00 1.00 DRILL N DPRB 11,238.00 PROD1 CONTINUE TO LAY DOWN BHA,LAY DOWN MWD TOOLS BREAK OF BIT LAY DOWN MOTOR 13:00 - 14:00 1.00 DRILL N DPRB 11,238.00 PROD1 MAKE UP BHA#10 BIT, NEAR BIT STABILIZER, CROSSOVER,3 HWDP AND JARS Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 29 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) i Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 19:30 5.50 I DRILL N DPRB 11,238.00 I PROD1 rRIH WITH DRILL PIPE FROM 130'TO 11,087' I SPR @ 18:00 DEPTH 8888'MD,6,550'TVD,MW 10.2 PPG MP#1:20 SPM:410 PSI;30 SPM:580 PSI MP#2:20 SPM:400 PSI;30 SPM:580 PSI 19:30 - 00:00 4.50 DRILL N DPRB 11,238.00 PROD1 BREAK CIRCULATION 3 BPM,910 PSI,PICK UP WT 180K,SLACK OFF WT 135K, PUMP 78 BBL LCM PILL AT 4 BPM 1020 PSI DOWN TO BIT.CLOSE BAG PUMP 50 BBLS @ 2BPM, UNTIL CASING PRESSURE IS 600 PSI. MONITOR PRESSURE DROP FOR 30 MINUTES 600 PSI-420 PSI, PUMP 10 BBLS AT 2 BPM. MONITOR PRESSURE DROP 600 PSI-440 PSI, PUMP 8.5 BBLS AT 2 BPM MONITOR PRESSURE FOR 30 MINUTES,600 PSI-480 PSI. PUMP 6.5 BBLS AT 2 BPM MONITOR PRESSURE DROP FOR 30 MINUTES,600 , PSI-510 PSI.PUMP 5 BBLS AT 2BPM, MONITOR PRESSURE DROP FOR 30 MINUTES,600 PSI-530 PSI. 9/6/2011 00:00 - 01:30 1.50 DRILL N DPRB 11,238.00 PROD1 BLEED OF PRESSURE FROM CHOKE, CASING,AND DRILL PIPE PRESSURE,OPEN BAG MONITOR WELL,WELL STATIC LOSSES 2BPH,CIRCULATE BOTTOMS UP STAGE I 1 PUMPS TO 5.5 BPM 1920 PSI,LOSS RATE AT i 70 BPH. 01:30 - 05:30 4.00 DRILL N DPRB 11,238.00 PROD1 FLOW CHECK WELL,WELL FLOWING, GAINED 2 BBLS SHUT IN WELL ' RECORD PRESSURES ON CHOKE PANEL -DRILL PIPE PRESSURE 240 PSI -CASING PRESSURE 140 PSI NOTIFY DRILLING SUPERINTENDENT KEN MILLER,WTL MIKE SCHULTZ 1 I I BLEED OFF 2 BBLS THROUGH CHOKE 1 -DRILL PIPE PRESSURE 140 PSI 1 -CASING PRESSURE 40 PSI BLEED OFF WELL THROUGH CHOKE UNTIL 1 STATIC,OPEN BAG FLOW CHECK WELL 05:30 - 07:30 1 2.00 DRILL N DPRB 11,238.00 PROD1 PULL OUT OF HOLE FROM 11,087'TO 8,880' FLOW CHECK WELL,STATIC LOSSES 1.5 BPH 07:30 - 08:30 1.00 DRILL P PROD1 SLIP AND CUT DRILLING LINE 08:30 - 16:30 8.00 DRILL N DPRB 11,238.00 PROD1 MONITOR WELL WHILE MIXING A 100 BBL 40 PPB FORM A BLOCK PILL 4 16:30 - 17:30 I 1.00 ( DRILL N DPRB 11,238.00 � PROD1 TRIP IN HOLE FROM 8,880'TO 11,115' Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 30 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task 1 Code NPT NPT Depth Phase Description of Operations (hr) 17:30 - 00:00 ' 6.50 DRILL + N i DPRB 11,238.00 I PROD1 BREAK CIRCULATION 3 BPM,700 PSI,PICK UP WT 180K,SLACK OFF WT 105K, PUMP 120 BBL FORMA BLOCK PILL AT 3 BPM 770 PSI DOWN TO BIT. PULL UP TO 11,091'CLOSE BAG PUMP 36 BBLS @ 2BPM, UNTIL CASING PRESSURE IS 600 PSI. MONITOR PRESSURE DROP FOR 30 MINUTES 600 PSI-430 PSI, PUMP 11.5 BBLS AT 2 BPM.MONITOR PRESSURE DROP 600 PSI-430 PSI, PUMP 11 BBLS AT 2 BPM MONITOR PRESSURE FOR 18 MINUTES,600 PSI-400 PSI. PUMP 12 BBLS AT 1 2 BPM MONITOR PRESSURE DROP FOR 17 MINUTES,600 PSI-380 PSI. PUMP 15 BBLS AT 2BPM,MONITOR PRESSURE DROP FOR 30 MINUTES,600 PSI-380 PSI. PUMP 14 BBLS AT 12BPM,MONITOR PRESSURE DROP FOR 30 MINUTES,600 PSI-410 PSI. PUMP 11.5 BBLS AT 2BPM,MONITOR PRESSURE DROP FOR 30 MINUTES,600 PSI-460 PSI. PUMP 8.5 BBLS AT 2BPM,MONITOR PRESSURE DROP FOR 30 MINUTES,600 PSI-480 PSI. PUMP 8.5 BBLS AT 2BPM, MONITOR PRESSURE DROP FOR 15 MINUTES,600 PSI-510 PSI. 9/7/2011 00:00 - 01:00 1.00 i DRILL N DPRB 11,238.00 ! PROD1 CONTINUE TO MONITOR CHOKE PRESSURE ' I BLEED DOWN FROM 510 PSI,TO 390 PSI 01:00 - 01:30 0.50 DRILL N DPRB 11,238.00 PROD1 BLEED OFF ALL PRESSURE,FLOW CHECK I WELL,WELL TAKING 1 BPH,BREAK CIRCULATION AT 2 BPM,610 PSI, STAGING UP TO 4 BPM,1090 PSI, LOSING 78 BPH, SHUT DOWN PUMPS FLOW CHECK 01:30 - 06:00 4.50 DRILL N DPRB 11,238.00 PROD1 GAINED 10 BBLS SHUT IN WELL RECORD PRESSURES ON CHOKE PANEL -DRILL PIPE PRESSURE 160 PSI INITIAL PRESSURE -CASING PRESSURE 40 PSI INITIAL PRESSURE NOTIFY DRILLING SUPERINTENDENTS KEN 1 MILLER AND ALAN MADSEN,WTL MIKE SCHULTZ,AND ODE RYAN CIOLKOSZ. :BLEED OFF.5 BBLS THROUGH CHOKE 1 -DRILL PIPE PRESSURE 60 PSI FINAL I PRESSURE ' I l -CASING PRESSURE 0 PSI FINAL PRESSURE BLEED OFF WELL THROUGH CHOKE UNTIL STATIC,OPEN BAG FLOW CHECK WELL. TOTAL OF 1.75 BBLS BLED BACK FROM WELL. -MOSES CREW HELD KICK DRILL,CRT 120 l SEC. 06:00 - 08:30 2.50 DRILL N DPRB 11,238.00 PROD1 FLOW CHECK THE WELL. STATIC. RUN IN THE HOLE FROM 1115'-11330'. UP WT. 185 K /DOWN WT. 105K. NO ISSUES OR TIGHT SPOTS RUNNING IN THE HOLE. FLOW CHECK THE WELL ON BOTTOM. STATIC. PULL OUT OF THE HOLE FROM 11330'-8880' fi , . I SLOW DUE TO SWABBING. 08:30 - 12:00 ' 3.50 DRILL N DPRB -11 238•00 PROD1- --__ FLOW CHECK THE WELL,STATIC. MONITOR THE WELL THROUGH THE TRIP TANK. SIM lOPS: BUILD BAROID EZ-SQUEEZE PILL. — 1 -TOTAL LOSSES FOR TOUR,15 BBLS. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 31 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task I Code I NPT NPT Depth I Phase Description of Operations (hr) (ft) 12:00 - 21:30 9.50 DRILL N DPRB 11,238.00 PROD1 MONITOR THE WELL THROUGH THE TRIP 'TANK. SIM OPS: BUILD BAROID EZ SQUEEZE PILL. 21:30 - 22:30 1.00 DRILL N DPRB 11,238.00 PROD1 RUN IN HOLE FROM8,795'TO 11,091 PICK UP WT 185K,SLACK OFF WT 110K 22:30 - 23:00 0.50 DRILL N DPRB 11,238.00 PROD1 RIG UP TO PUMP EZ SQUEEZE PILL WITH SCHLUMBERGER CEMENTERS 23:00 - 00:00 1.00 DRILL N DPRB 11,238.00 ' PROD1 PRE JOB WITH CEMENTERS ON PUMPING EZ SQUEEZE PILL,PRESSURE TEST LINES TO 3500 PSI,ATTEMPT TO PUMP PILL -TOTAL LOSSES FOR TOUR,13 BBLS. 9/8/2011 00:00 - 02:00 2.00 DRILL N DPRB 11,238.00 PROD1 ATTEMPT TO PUMP EZ SQUEEZE PILL WITH I CEMENTERS,PUMP PACKING OH-WI I H PILL,SHUTDOWN,SWAP OVER PUMP 10 BBLS OF MUD WITH SCHLUMBERGER 3 BPM, 1080 PSI,SWAP BACK OVER TO EZ SQUEEZE PUMP 23 BBLS OF EZ SQUEEZE BEFORE PUMP PACKED OFF,SWAP OVER AND CHASE EZ SQUEEZE WITH 120 BBLS OF OBM 3 BPM,980 PSI 102:00 - 03:00 1.00 i DRILL N DPRB 11,238.00 PROD1 MONITOR WELL WHILE CONSULTING WITH TOWN ON NEXT STEP 03:00 - 05:30 2.50 DRILL N DPRB 11 238.00 PROD1 ROTATE OUT OF HOLE 10 STANDS TO 10,098' 05:30 - 07:30 ! 2.00 DRILL N DPRB 11,238.00 PROD1 SHUT BAG PRESSURE UP TO 600 PSI, • THROUGH KILL LINE, LINE UP ON DRILL PIPE PRESSURE UP TO 580 PSI,31 BBLS TOTAL I PUMPED, PRESSURE DROPPED TO 430 PSI IN 30 MINUTES. BLEED OFF ALL PRESSURE, OPEN BAG MONITOR WELL. 07:30 - 09:00 1.50 DRILL N DPRB 11,238.00 PROD1 'RUN IN HOLE 10 STANDS TO 11,088'PICK UP WT 185K,SLACK OFF WT 108K 09:00 - 11:00 2.00 DRILL N DPRB 11 238.00 PROD1 RIG UP ON CEMENT LINE,ESTABLISH • CIRCULATION 3 BPM,960 PSI,LOSS RATE 80 BPH.SWAP OVER TO SCHLUMBERGER PUMP 5 BBL MUD AND PRESSURE TEST LINES TO 4000 PSI.PUMP 10 BBL OF EZ SQUEEZE,PUMP LOCKED UP,SWAPPED PUMPS AND POD STILL UNABLE TO GET PILL PUMPED. 11:00 - 12:00 1.00 DRILL N DPRB 11,238.00 PROD1 MONITOR WELL,WHILE CLEANING PIT 4 TO TRANSFER EZ SQUEEZE PILL. 12:00 - 13:30 1.50 DRILL N DPRB 11,238.00 PROD1 CONTINUE TO CLEAN PIT 4 AND TRANSFER EZ SQUEEZE TO RIG. 13:30 - 17:30 4.00 DRILL N DPRB 11,238.00 PROD1 PJSM WITH ALL HANDS ON PUMPING PILL. PUMP EZ SQUEEZE WITH RIG. PUMP 4 BPM. 1210 PSI. SET ON DEPTH AT 11.088. CLOSE BAG. PUMP 80 BBLS 2 BPM. MONITOR 'PRESSURE DROP FOR 30 MINUTES 490 PSI T040 PSI BLEED OFF OPEN CHOKE, MONITOR RETURNS.OPEN BAG. MONITOR WELL 17:30 - 20:00 2.50 DRILL N DPRB 11,238.00 PROD1 CIRCULATE HOLE CLEAN BPM,1140 PSI, LCM SEEN ON SURFACE,WELL OVERBALANCED WITH LCM PILL. PICK UP WT 185K,SLACK OFF WT 105K. ESTABLISH DYNAMIC LOSS RATE AT 170 GPM,40 BPH, 240 GPM 120 BPH,250 GPM 100 BPH. 20:00 - 22:00 , 2.00 DRILL N DPRB 11,238.00 PROD1 MONITOR WELL WHILE WAITING ON TRUCK LOAD OF MUD TO ARRIVE Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 32 of 32 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:DRL-ONSHORE(DON) Start Date:8/9/2011 End Date: X3-01080-E(5,930,000.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 DRILL N DPRB 11,238.00 PROD1 PULL OUT OF HOLE FROM 11,088'TO 8,950' -SIM OPS: OFF-LOAD MUD FROM TRUCK TO THE PITS. 9/9/2011 00:00 - 01:00 1.00 DRILL N DPRB 11,238.00 PROD1 CONTINUE TO PULL OUT OF HOLE TO 8888' 01:00 - 02:00 1.00 DRILL N DPRB 11,238.00 PROD1 SET STORM PACKER,TOP OF STORM PACKER AT 97.29'TEST 250 PSI LOW,1000 PSI HIGH, FIVE MIN EACH 02:00 - 05:30 3.50 DRILL N DPRB 11,238.00 PROD1 FUNCTION RAMS AND ANNULAR FLUSH OUT STACK. DUE TO HIGH VOLUME OF LCM PUMPED DURING THIS WELL,RIG UP TO TEST BOP'S, 05:30 - 13 00 7.50 DRILL P 11,238.00 PROD1 QOPE TEST ANNULAR WITH 4"TEST JOINT 250 PSI LOW 3500 PSI HIGH,5 MINUTES EACH,TEST RAMS WITH 4"AND 4 1/2"TEST JOINTS 250 PSI LOW,3500 PSI HIGH.AOGCC REP BOB NOBLE WAIVED WITNESS.TEST 1 D� WITNESSED BY TOOLPUSHER'S MIKE SMITH, e f AND BOBBY INGRAM,AND WSL CHRIS KOBUCK,WILL TURNER,AND BLAIR NEUFELD 13:00 - 14:00 1.00 DRILL P t ( PROD1 RIG DOWN TEST EQUIPMENT PULL TEST PLUG INSTALL WEAR RING 14:00 - 15:00 1.00 DRILL P PROD1 RUN IN HOLE RETRIEVE STORM PACKER AND LAY DOWN 15:00 - 16:30 1.50 DRILL N DPRB 11,238.00 PROD1 CHANGE OUT ELEVATORS LAY DOWN FLEX COLLARS AND CLEAN AND CLEAR FLOOR OF ALL DRILLING BHA COMPONENTS 16:30 - 18:30 2.00 DRILL N DPRB 11,238.00 PROD1 MONITOR WELL WHILE WAITING ON LINER JEWELRY STATIC LOSSES 2 BPH 18:30 - 20:30 2.00 DRILL N DPRB 11,238.00 PROD1 RUN IN HOLE FORM 8702'TO 11308'PICKUP WT 190K,SLACK OFF WT 105K,ROTATE WT 135K,TORQUE 6K AT 40 RPM,WASH LAST STAND TO 11393 STAGE PUMPS UP 2 BPM 570 SPI,3 BPM 780 PSI,4 BPM 1050 PSI • -KICK WHILE TRIPPING D-1 DRILL 1MIN 10 SEC 20:30 22:30 2.00 DRILL P 11,238.00 PROD1 CIRCULATE HOLE CLEAN 4 BPM 1050 PSI DYNAMIC LOSS RATE OF 200 TO 300 BPH 22:30 - 00:00 1.50 DRILL P 11,238.00 PROD1 MONITOR WELL 15 MINUTES PULL OUT OF HOLE FROM 11393'TO 9820' 9/10/2011 00:00 - 01:00 1.00 DRILL P I 11,238.00 PROD1 CONTINUE TO PULL OUT OF HOLE FROM '9820'TO 888.8' 01:00 - 02:30 1.50 DRILL P 11,238.00 PROD1 CIRCULATE BOTTOMS UP AT WINDOW 241 GPM,1450 PSI LOSSES OF 60 BBL/HR 02:30 - 06:30 4.00 DRILL P 11,238.00 PROD1 MONITOR THE WELL FOR 10 MINUTES,DROP A 2"RABBIT WITH A TAIL,BLOW DOWN THE TOP DRIVE,AND PULL OUT OF THE HOLE FROM 8888'-130'. 06:00 - 08:00 2.00 DRILL P 11,238.00 PROD1 LAY DOWN THE JARS,BIT,NEAR BIT STABILIZER,CROSS OVER,JARS,AND 3 JOINTS OF HWDP. Printed 9/26/2011 11:37:40AM North America -ALASKA- BP Page 1 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:COM-ONSHORE(CON) Start Date:8/25/2011 End Date:9/15/2011 X3-01080-E(2,159,000.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/10/2011 08:00 - 09:00 1.00 CASING P RUNPRD CLEAN AND CLEAR THE FLOOR OF ALL UN-NEEDED TOOLS FOR UPCOMING OPERATIONS. 09:00 - 10:30 1.50 CASING P RUNPRD RIG UP TO RUN 4.5"VAM TOP 12.6#LINER. 10:30 - 12:00 1.50 CASING P RUNPRD MAKE UP THE 4.5"VAM TOP 12.6# PROD(K:TION I JNER AS FOI I OWS: 4.5"HES FLOAT SHOE 4.5"12.6#13CR PUP JOINT 4.5"HES FLOAT COLLAR 4.5"12.6#13CR PUP JOINT 4.5"13 CR BAKER SOLO PLUG LANDING COLLAR 4.5"12.6#13CR HES SWELL PACKER ASS#1 4.5"12.6#13CR HES SWELL PACKER ASS#2 BAKER LOCATOR SUB ASSEMBLY 1 JTS 4.5"12.6#13CR80 VAMTOP LINER(#4) -UTILIZING BAKER LOK ON CONNECTIONS BELOW THE SECOND SWELL PACKER AND JET LUBE SEAL GUARD ON ALL CONNECTIONS. —TORQUE ALL VAM TOP CONNECTIONS TO 4400 FT/LBS. Printed 9/26/2011 11:37:56AM North America -ALASKA- BP Page 2 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:COM-ONSHORE(CON) Start Date:8/25/2011 End Date:9/15/2011 X3-01080-E(2,159,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) 12:00 - 17:00 T 5.00 CASING P T RUNPRD 'CONTINUE MAKING UP THE 4.5"VAM TOP 12.6#PRODUCTION LINER AS FOLLOWS: 4 1/2"BAKER"CMU"SLIDING SLEEVE ASSEMBLY#1 6 JTS 4.5"12.6#13CR80 VAMTOP LINER (#5-10) 4.5"12.6#13CR HES SWELL PACKER ASS#3 4 1/2"BAKER"CMU"SLIDING SLEEVE ASSEMBLY#2 5 JTS 4.5"12.6#13CR80 VAMTOP LINER (#11-15) 4.5"12.6#13CR PUP JOINT#G 4.5"12.6#13CR HES SWELL PACKER ASS#4 4 1/2"BAKER"CMU"SLIDING SLEEVE ASSEMBLY#3 10 JTS 4.5" 12.6#13CR80 VAMTOP LINER I (#16-25) 4.5"12.6#13CR PUP JOINT#6 4.5"12.6#13CR HES SWELL PACKER ASS#5 4 1/2"BAKER"CMU"SLIDING SLEEVE ASSEMBLY#4 12 JTS 4.5"12.6#13CR80 VAMTOP LINER 11 (#26-37) 4.5"12.6#13CR PUP JOINTS#4 ' 4.5"12.6#13CR PUP JOINTS#F 4.5"12.6#13CR HES SWELL PACKER ASS#6 2 JTS 4.5"12.6#13CR80 VAMTOP LINER (#38-39) �4 1/2"BAKER"CMU"SLIDING SLEEVE 'ASSEMBLY#5 15 JTS 4.5"12.6#13CR80 VAMTOP LINER (#40-44) 14.5"12.6#13CR PUP JOINT#7 y 14.5"12.6#13CR PUP JOINT#5 4.5" 12.6#13CR HES SWELL PACKER ASS#7 2 JTS 4.5" 12.6#13CR80 VAMTOP LINER i ,(#45-46) X4.5" 12.6#13CR PUP JOINT#E 1I 4 1/2"BAKER"CMU"SLIDING SLEEVE 1 ASSEMBLY#6 4 JTS 4.5"12.6#13CR80 VAMTOP LINER 1 (#47-50) 1 1 EA.4.5"12.6#13CR80 VAMTOP PUP j 1 CROSS-OVER BUSHING BAKER 5"X 7"FLEX-LOCK. LINER HANGER 1 RS PACKOFF SEAL NIPPLE j j BAKER 5"X 7"HRD-E ZXP PACKER(11.25'X 15.25"TIEBACK) i CENTRALIZER PLACEMENT j OMD ACROSS STOP RING 5' FROM BOTTOM 1 1 OF JT#1 ONE OMD CENTRALIZERS ON JTS.#4 THRU #46 FLOATING OMD CENTRALIZERS FREE FLOATING NEXT TO COLLAR AT BOTTOM ENDS OF THE SWELL PACKERS OMD CENTRALIZERS TOTAL=57 1 I 1-UTILIZE JET LUBE SEAL GUARD ON ALL CONNECTIONS. -TORQUE ALL VAM TOP CONNECTIONS TO 14400 FT/LBS. Printed 9/26/2011 11:37:56AM North America-ALASKA- BP Page 3 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: COM-ONSHORE(CON) Start Date:8/25/2011 End Date: 9/15/2011 X3-01080-E(2,159,000.00) Project: Prudhoe Bay Site: PBZ Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 18:00 , 1.00 1 CASING P 1 RUNPRD RIG DOWN LINER RUNNING TOOLS,CHANGE OUT THE BALES,AND RIG UP TO RUN DRILLPIPE. 18:00 - 18:30 0.50 I CASING P RUNPRD PICK UP ZXP PACKER AND INSTALL THE PAL —.— i_ MIX. 18:30 - 19:00 0.50 CASING P RUNPRD CIRCULATE 1.5 LINER VOLUMES(60 BBLS)AT 5 BPM WITH 570 PSI. UP WT.79K/DOWN l WT.75K. I -JENNINGS CREW HELD SPILL DRILL,CRT 113 SEC. 19:00 - 00:00 5.00 ; CASING P RUNPRD RUN IN THE HOLE WITH THE 4.5" PRODUCTION LINER FROM 2643'-8236'ON 4" DRILLPIPE. FILLING EVERY 10 STANDS. 9/11/2011 00:00 - 01:00 1.00 CASING P RUNPRD CONTINUE RUNNING 4.5"LINER ON DP FROM 8236'TO 8889' 01:00 - 01:30 0.50 CASING P RUNPRD CIRCULATE 35 BBLS AT WINDOW 2 BPM,580 PSI LOSS RATE OF 150 BPH WHILE CIRCULATING 01:30 - 07:00 5.50 CASING P RUNPRD CONTINUE RUNNING INTO OPEN HOLE WITH LINER ON DP FROM 8889'TO 11393', WORKING TIGHT HOLE AT 9608'-9653'PUMP 2 BPM,740 PSI, ONCE FREE RUN IN TO 10750'-10815'WORKING TIGHT HOLE 2 BPM, 900 PSI, PICK UP WT 210K, SLACK OFF WT 90K. WHEN TAGGING UP ON BOTTOM 'SLOWLY SLACKED OFF TO THE BOTTOM OF STAND OF DRILL PIPE. STARTED TAKING WEIGHT. MADE UP A SINGLE JOINT OF DRILLPIPE AND ATTEMPTED TO SLACK OFF • TO VERIFY BOTTOM. LINER WOULD NOT ' MOVE. ATTEMPTED TO PICK UP AND SLACK OFF WITH PUMPS ON AND OFF. STILL NO MOVEMENT. DISCUSSED WITH ODE AND d ; ; DECISION WAS MADE TO SET HANGER AND PACKER. 07:00 - 11:30 4.50 CASING P RUNPRD LOAD DART INTO DRILL PIPE, HOLD PJSM ON DISPLACING WELL OVER TO 10.2 BRINE. PUMP 40 BBL HIGH VIS SOAP SWEEP, IFOLLOWED BY 35 BBL DEEP CLEAN PILL, AND 40 BBLS OF NEW BRINE WITH 2 SACKS OF FLOW ZAN, PUMP 910 STROKES AND LATCH UP 1737 PSI, BUMP WITH 1247 STROKES, PRESSURE UP TO 3200 PSI SET HANGER SLACK OFF TO 90K TO CONFIRM, PRESSURE UP TO 4100 PSI TO SET PACKER, PICK UP AND SET DOWN WITH 15 RPM TO CONFIRM, CONTINUE TO DISPLACE WELL TO 10.2 BRINE 5 BPM,640 PSI 11:30 - 14:00 T 2.50 CASING P RUNPRD R/U TO TEST LINER TO 3500 PSI,HOLD FOR 30 MIN LOST 90 PSI IN THE FIRST 15 1 MINUTES,AND 40 PSI IN SECOND 15 MINUTES PASSING TEST 3.6 BBLS TO PRESSURE UP BLEED BACK 3.6 BBLS. PRODUCTION PACKER WILL BE FINAL BARRIER BEFORE MOVING OFF WELL.RIG ; DOWN TEST EQUIPMENT BLOW DOWN ALL 1 i LINES 14:00 - 15:00 1.00 CASING P RUNPRD SERVICE TOP DRIVE AND DRAWWORKS Printed 9/26/2011 11:37:56AM x �E North America -ALASKA- BP Page 4 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:COM-ONSHORE(CON) Start Date: 8/25/2011 End Date:9/15/2011 X3-01080-E(2,159,000.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:00 - 16:30 1.50 CASING P RUNPRD CLEAN AND CLEAR FLOOR OF LINER RUNNING EQUIPMENT. RIG UP TO LAY DOWN DP. 16:30 - 18:00 1.50 CASING P RUNPRD SLIP AND CUT DRILLING LINE 18:00 - 23:00 5.00 CASING P RUNPRD PULL OUT OF HOLE LAYING DOWN 4"DP FROM 8664'TO 2141' 23:00 00:00 1.00 CASING P RUNPRD RUN IN HOLE STANDS FROM DERRICK FORM 2141'TO 3074' 9/12/2011 00:00 - 03:00 3.00 CASING P RUNPRD CONTINUE TO RUN IN HOLE WITH DP FROM 3074'TO 7826'CIRCULATE THROUGH DRILL PIPE TO CLEAR ANY EXCESS OBM OUT 320GPM,1470 PSI 03:00 - 10:00 7.00 CASING P RUNPRD PULL OUT OF HOLE LAYING DOWN 4"DP FROM 7826'TO SURFACE LAY DOWN LINER RUNNING TOOL 10:00 - 13:00 3.00 CASING P RUNPRD PJSM, RIG UP E-LINE TO RUN USIT LOGS 13:00 - 21:30 8.50 EVAL P RUNPRD RUN IN HOLE WITH USIT LOG ON E-LINE TO 8750', PULL OUT OF HOLE WHILE LOGGING WITH E-LINE.ESTIMATED TOC 5765'AS PER SCHLUMBERGER E-LINE OPERATOR _ -JENNINGS CREW SPILL DRILL,CRT=76 SEC 21:30 - 22:30 1.00 EVAL P r ' RUNPRD LAY DOWN WIRELINE TOOLS AND RIG DOWN _ ALL E-LINE EQUIPMENT 22:30 - 00:00 1.50 CASING N RREP RUNPRD HANG BLOCKS AND CHANGE OUT CRACKED BRAKE BAND 9/13/2011 00:00 - 04:00 4.00 CASING N RREP RUNPRD CONTINUE TO CHANGE OUT BRAKE BAND ON DRAW WORKS,ADJUST BRAKES PUT GUARDS AND COVERS BACK IN PLACE 04:00 07:00 3.00 RUNCOM P RUNCMP MAKE DUMMY RUN WITH THE LANDING JT AND HANGER. RIG UP TO RUN 4.5" 12.6# 13CR85 VAM TOP COMPLETION. CHANGE OUT THE ELEVATORS AND BALES. INSTALL THE COMPENSATOR EQUIPMENT AND MOBILIZE I-WIRE SPOOL AND CLAMPS TO THE RIG FLOOR. Printed 9/26/2011 11:37:56AM North America -ALASKA- BP Page 5 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:COM-ONSHORE(CON) Start Date:8/25/2011 End Date:9/15/2011 X3-01080-E(2,159,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 12:00 5.00 RUNCOM P RUNCMP RUN 4.5"12.6#13CR85 VAM TOP ' COMPLETION AS FOLLOWS: 4.5"12.6#WLEG,4.5"TC-II 4.5", 12.6#,13CR-85 TC-II PUP JT. I I 4.5"HES'X'NIPPLE W/RHC-M: 3.813"ID#1 I 4.5", 12.6#,13CR-85 TC-II PUP JT. , 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 1 JT.4.5", 12.6#,13CR-85 VAM TOP TUBING(BAKER LOKED) 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 4.5"HES'X'NIPPLE:3.813"ID #2 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 4.5", 12.6#,13CR-85 VAM TOP PUP 4.5", 12.6#,13CR-85 VAM TOP PUP 4.5"X 7"HES TNT PACKER 4.5", 12.6#,13CR-85 VAM TOP PUP 4.5", 12.6#,13CR-85 VAM TOP PUP NDPG-C SAPPHIRE GAUGE SINGLE SUB 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 14.5"HES'X'NIPPLE:3.813"ID #3 4.5", 12.6#,13CR-85 TC-II PUP JT. 4.5", 12 6#,13CR-85 TC-II PIN X VAM TOP BOX i i ;PUP JT. i 5 JTS(#2-6)4.5", 12.6#,13CR-85 VAM TOP 1TUBING 14.5", 12.6#,13CR-85 VAM TOP PUP GLM#1-4.5"X 1"KBG W/DUMMY-SBK-2C LATCH 1 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. X4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 12 JTS(#7-18)4.5", 12.6#,13CR-85 VAM TOP TUBING 4.5", 12.6#,13CR-85 VAM TOP PUP I1 GLM#2-4.5"X 1"KBG W/DUMMY-SBK-2C LATCH 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 17 JTS(#19-35)4.5", 12.6#,13CR-85 VAM TOP 1TUBING 4.5", 12.6#,13CR-85 VAM TOP PUP 1 GLM#3-4.5"X 1"KBG W/DUMMY-SBK-2C I LATCH 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 7 JTS(#36-42)4.5", 12.6#,13CR-85 VAM TOP I i TUBING I-BAKER LOK ALL CONNECTIONS BELOW THE Printed 9/26/2011 11:37:56AM North America-ALASKA- BP Page 6 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: COM-ONSHORE(CON) Start Date:8/25/2011 End Date:9/15/2011 X3-01080-E(2,159,000.00) Project: Prudhoe Bay f Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr)- l (ft) PACKER AND UTILIZE JET LUBE SEAL GUARD ON ALL OTHER CONNECTIONS. -TORQUE TO 4400 FT/LBS. 12:00 - 12:30 0.50 RUNCOM P RUNCMP LUBRICATE AND INSPECT THE TOP DRIVE, DRAW WORKS AND HANDLING EQUIPMENT. 12:30 - 00:00 t 11.50 RUNCOM P RUNCMP CONTINUE RUNNING 4.5"12.6#13CR85 VAM TOP COMPLETION AS FOLLOWS: 21 JTS(#43-63)4.5", 12.6#,13CR-85 VAM TOP TUBING 4.5", 12.6#,13CR-85 VAM TOP PUP • GLM#4-4.5"X 1"KBG W/DCK-2 SHEAR-BEK I i LATCH I ! 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN ` PUP JT. 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 53 JTS(#64-116)4.5", 12.6#,13CR-85 VAM • TOP TUBING 4.5", 12.6#,13CR-85 VAM TOP PUP ! GLM#5-4.5"X 1"KBG W/DUMMY-SBK-2C LATCH 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX I I PUP JT. 35 JTS(#117-151)4.5", 12.6#,13CR-85 VAM TOP TUBING 4.5", 12.6#,13CR-85 TC-II BOX X VAM TOP PIN PUP JT. 4.5"HES'X'NIPPLE:3.813"ID #4 4.5", 12.6#,13CR-85 TC-II PIN X VAM TOP BOX PUP JT. 4.5", 12.6#,13CR-85 VAM TOP PUP 50 JTS(#152-201)4.5", 12.6#,13CR-85 VAM TOP TUBING -UTILIZE JET LUBE SEAL GUARD ON ALL OTHER CONNECTIONS. -TORQUE TO 4400 FT/LBS. 9/14/2011 00:00 - 02:00 , 2.00 RUNCOM P RUNCMP CONTINUE RUNNING 4.5"12.6#13CR85 VAM TOP COMPLETION AS FOLLOWS: 4.5", 12.6#,13CR-85 VAM TOP PUP 9.85' 1 JT. (#202)4.5", 12.6#,13CR-85 VAM TOP TUBING 4.5",TC-II X VAM TOP PIN X PIN CROSSOVER FMC TUBING HANGER W/4-1/2"TC-II LIFTING THREADS DOYON 14 RT=29.36 FT I � I-UTILIZE JET LUBE SEAL GUARD ON ALL I 'OTHER CONNECTIONS. -TORQUE TO 4400 FT/LBS. I !I-WIRE CLAMPS: I-104 FULL 11-12 HALF UP WT=145K,DN WT=105K,BLOCKS 50K 02:00 - 03:00 1.00 RUNCOM P ; RUNCMP TERMINATE I-WIRE,LAND OUT COMPLETION _ 1 AND RUN IN LOCK DOWN SCREWS. Printed 9/26/2011 11:37:56AM North America -ALASKA- BP Page 7 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type: COM-ONSHORE(CON) Start Date: 8/25/2011 End Date: 9/15/2011 X3-01080-E(2,159,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 I Spud Date/Time:8/10/2011 12:00:00AM Rig Release: 9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs 1 Task Code NPT NPT Depth Phase Description of Operations (hr) -- (ft) 03:00 - 03:30 0.50 , RUNCOM P I RUNCMP HOLD AAR ON RUNNING COMPLETION AND PJSM ON REVERSE CIRCULATING IN CLEAN 10.2 PPG BRINE AND 10.2 PPG CORROSION INHIBITED BRINE. 03:30 - 04:30 1.00 RUNCOM P RUNCMP REVERSE CIRCULATE 60 BBLS OF 10.2 PPG OF CLEAN BRINE FOLLOWED BY 50 BBLS OF , CORROSION INHIBITED 10.2 PPG CLEAN •BRINE AND 111 BBLS OF 10.2 PPG CLEAN [BRINE AT 40 SPM WITH 640 PSI. 04:30 - 10:00 5.50 RUNCOM P RUNCMP DROP THE BALL AND ROD. ALLOW TO DROP FOR 30 MINUTES. ATTEMPT TO SEAT AND i PRESSURE UP. NO SUCCESS. CYCLE THE PUMPS AT 4 BPM FOR 5 BBLS TO ATTEMPT I TO MOVE THE BALL AND ROD. NO SUCCESS. ' REVERSE CIRCULATE 10 BBLS TO ENSURE SEAT IS CLEAR. BACK OUT THE LOCK DOWN SCREWS AND WORK THE PIPE 4'TO HELP THE BALL AND ROD FALL ON SEAT. RUN LOCK DOWN SCREWS BACK IN. PRESSURE UP TO 250 PSI FOR 5 MINUTES TO PERFORM A LOW PRESSURE TEST ON THE TUBING. I I GOOD_TEST CONTINUE TO PRESSURE UP TO 3700 PSI. AFTER 15 MINUTES BLED OFE 120 PSI AND AFTER 30 MINUTES BLED OFF 50 .• PSI. TOTAL OF 170 PSI BLEED OFF. TOOK r 1.6 BBLS TO PRESSURE UP AND 1.6 BBLS BLED BACK. GOOD TEST. PRESSURE t PC TUBING BACK UP TO 2000 PSI FOR ANNULUS TEST_..PRE$SURE UP THE ANNULUS TO 2.5.0. PSI FOR 5 MINUTES. GOOD TEST. CONTINUE TO PRESSURE UP TO 3620 PSI FOR 30 MINUTES. AFTER 15 MINUTES LOST 50 PSI AND AFTER 30 MINUTES LOST 20 PSI. TOTAL OF 70 PSI LOST. GOOD TEST. TOOK 2.3 BBLS TO PRESSURE UP AND 2.3BBLS BLED BACK. BLEED OFF THE TUBING PRESSURE TO SHEAR THE DCK SHEAR VALVE. PUMP 3 BBLS DOWN THE TUBING AT I 1.5 BPM WITH 640 PSI. PUMP 3 BBLS DOWN THE ANNULUS AT 1.5 BPM WITH 460 PSI. CONFIRMATION VALVE SHEARED. ANNULUS AND TUBING TEST APPROVED BY WTL MIKE SCHULTZ. 10:00 - 11:00 1.00 RUNCOM P RUNCMP RIG DOWN CIRCULATING EQUIPMENT,LAY DOWN THE LANDING JT, SUCK OUT THE STACK. CLEAR THE FLOOR OF ALL UN-NEEDED TOOLS FOR UPCOMING 11:00 13:00 2.00 WHSUR P RUNCMP OPERATIONS. - }SET THE TWC AND TEST FROM ABOVE TO 250 PSI LOW/3500 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TESTS. TEST THE TWC FROM BELOW TO 250 PSI LOW/2000 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TESTS. MONITORED FLUID LEVEL FOR AN HOUR BEFORE SETTING THE TWC. I I MONITORED THE FLUID LEVELS PUMPED IN 'AND BLED BACK. 13:00 - 17:00 4.00 WHSUR PRUNCMP BLOW DOWN THE LINES,SUCK OUT THE STACK, NIPPLE DOWN THE FLOW LINE, RISER, CHOKE AND BOPE. Printed 9/26/2011 11:37:56AM North America -ALASKA- BP Page 8 of 8 Operation Summary Report Common Well Name:Z-113 AFE No Event Type:COM-ONSHORE(CON) Start Date: 8/25/2011 End Date: 9/15/2011 X3-01080-E(2,159,000.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:8/10/2011 12:00:00AM Rig Release:9/15/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-113 Actual @90.37ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 22:00 5.00 WHSUR P RUNCMP NIPPLE UP THE ADAPTER FLANGE. FMC TEST THE VOID TO 250 PSI LOW FOR 5 MINUTES AND 5000 PSI FOR 30 MINUTES. GOOD TEST. NIPPLE UP THE TREE AND TEST 250 PSI LOW 5 MIN 5000 PSI HIGH 5 MIN.GOOD TEST. -JENNINGS CREW,CRT 89 SEC. 22:00 - 00:00 2.00 WHSUR P RUNCMP RIG UP DSM LUBRICATOR.TEST 250 PSI LOW 5 MIN 3500 PSI HIGH 5 MIN.GOOD TEST. 9/15/2011 00:00 - 01:00 1.00 WHSUR P RUNCMP CONTINUE TO TEST THE LUBRICATOR TO • 3500 PSI FOR 5 MINUTES. PULL THE TWC. 01:00 - 01:30 0.50 WHSUR P RUNCMP RIG UP TO FREEZE PROTECT WITH LRS. 01:30 - 03:00 1.50 WHSUR P RUNCMP PJSM, PUMP 70 BBLS 80 DEGREE DIESEL FREEZE PROTECT WITH LRS. 1.6 BPM. FCP • 1400 PSI 03:00 - 05:00 2.00 WHSUR P RUNCMP LET THE WELL U-TUBE. 105:00 - 06:00 1.00 WHSUR r P RUNCMP RIG DOWN LRS AND RIG UP DSM TO PRESSURE TEST LUBRICATOR. 06:00 - 07:30 1.50 WHSUR P RUNCMP SET BPV AND TEST FROM BELOW TO 250 PSI /2000 PSI HIGH FOR 5 MINUTES. 07:30 - 14:00 6.50 WHSUR • P RUNCMP PRESSURE TEST THE OA AND IA VALVES TO r 5000 PSI. -RIG RELEASED TO Z-65. Printed 9/26/2011 11:37:55AM ° 0 NM �� Wm VNW.- O N N O 0,V040.- .m2 0 DO0 pVO . N 4 e e Q N 80262 s sg§§§ Wm NN WW WW0NN p ppWpO 00000 OOOpSypppO 80W WD D Dmnnn W WWWWW WWW am Wmmmm WmmmmmmmD $ J 44444 eeaeQQQQQ 44444 aaaQ 44444 04444 QQQeW Q Q 0 a e S 4:509)0. v2. SMMMDMX NNMWmC00' a Mo ;pD g8,882 8N262 6V,84 4 C. 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Opa aYY8NNNpMMMMMMJh8agam aGgSGbYONQ YPYYP pO if N N Fyn � 0S 0Y)aND aYD)Nr arD O�t♦pr0 Om N W 0 M O 0 N M V O V V n r 080,0 p N Nw0,.-0 ,- N N N N l2 N m-N p m 0 N N 0Y.-O O Mm WIWW O 0 mN m 0) aQ pp $ pmNOa a 0b0mOO OWOp0m0mN) ymfprVOO O .00 NYOYYY000 Y 0000 YOO0 00000 0000 bw0 Wp0 00 yam 'E'-NS 2°,21:24 S'NN,2 erQ"N NO WN,2 gN,T n O M Na N Ny W W S 2482E, W YPn8 :7.'4822 WW rra V 8 raa-06 ; r.:6666 n mGpaWNR0) ON0O0VrOVrWMN� VN NW.4O 4MTaeN VaN NNYO( t0bn ro. p S82 8 �0�ONN aAS V68,28 Yr O YOfif) ,7-3%28 01 N mN G NnO nr°AOfWp (0��Opa.fmp-8fGpO M�NOMWO m W N Om O b m n NN O N YNn 6MOOMOrVONOppNh aOohQp � "aapOOOMmMMOVW mmY0DNM0p0000mp0p D22p 0000 p Dp 8 202 p0pp0p 2 220p NEn028 4 (0( , 8nmMM)WODO ?MYON NN $ Ta M8OO V OOO 4- :72 M 4- :72 D 0 0 0 0)0 V A O 6666 p00, NCaNO 6p06 66920)6 66666 66646 t-.66 :C 66666 66 nmmN mncaaay_NN NNN)rNNNNgrNNN0 0pNN NNNNN N0LISN NNNNNOWY000 00 w N000 00000 00000 00000 00000 00000 WWWW0 OWWWW it �1pp a n O m rW N M p N00000 OO O O 0ON r N O0)�NNOpmW n M W.- n m m m M,N ut Ow O 0 m WmnY WNMwN W W 41;8t r0OmmmmO0nn01.7:mO1r0000 n n N 0 g m rut$ 181 W W 0 OMI W W 18 W m m m m T ONT A C` Y On� 0;2 . mbe0rv�ONW mN00MNN ��WNo NnnNNW$ 0rN DNvOe0 MIO m 2WGDM7OmfO I�I ndee eaelnN nNSS31 gYaD)fcftS Onrrm mG°DDW g& waag W aggarn W W$OW OW rn8mOm mmmaeW W W tml N 0+)N MW)N 0 moW O O Yi ODN 0 N W 7 m N m n 00 ODD mYI O O D V nO 000 o D m0) Nw NOwN O 8,488 0o0,46v6 F-NOE. 008 O F-1-0E. 20388S6222OOp0OWWWW TNNmWOaOWOWOOO ' 03 WW WT WWWWWOOOOOOO III T U O Z t 8 m c S a0n f f+ ` v a 0 1=.-0 ii • _O 0 OA2AP. 0NN N 0nN1n M 0foNOVii _EnEM NOON Oif0Ain' N p 1MNNNN00� 00p0p 80022 WNN NNNN0ppN Np $ J 0.14 VV OW V t t W VV V V V V V V V M t W W V M M V V V V V V V V tot V d turmvo 0 Ni a M M 4 12 ONN01WWNrNr MON0NOn0rDN2" , pOI nnnD "NN' NN Nn Mm 28A01n n 'aW 9 OOOOOOOO 00008 OOOOO OOOOW 00000T$To ms l7 M 1n M M 19 O)M M M NMN AAAA. M A M N M 1011 M 1011 M M 10+1 M 10+1 M O M NN 666 An 0 0 6 6 6 66666 0 6 6 6 o 6 6 6 66666 0 0 0 0 0 0 0 0 0 66666 0 0 0 0 0 0 1nnnn ` nnr innn 1 0 grOOOr7pNQNVyN,- nMONNnOOr1ppNmv. N Ol N Om OO o Mw..-0 N0 ? 0M,OW QM MN V,MNV WMMMMmO MMM M1NNN^00MMMMMMmm MMMM1 + M a aOOOOOOs00080000000000000m 08008 8888' 000 00000D0 0 000. 0 00. C,1Qrr O"-g22 LinNbY OOrVM MOOWN 2NrO0P2228 OMN W r 66g6, O 666 y .6 46M CWamMNWWW0WWNr WW0WNW 1a m OOWW m 04•-M,0 0 O0m00 .mMV yMO ZMMMMMMMM MMMMMMMMMMMMMMM MM1 . 000WWOOO OWWON WWWWN OmOOW mNOOO WWWON Oq0 ... 0. 0N. ..... ....b ..... 0NNN. ..... N.N 100 nVN0N NNNO WWrrr rtON M )NOW n0NOO00ppO 066 M6664 V02OiO MOI1Dr 6NN06 . 6,-;c66 tV N O . p G t. C O N 0 0.-MMM M 0aD r OYf cO NWm.o., N M N nnr M 0iO ,-,- •-m0 0N0 0 10 0 NNOM Vm.W ; 0WaM'MWN0NON6n0466NpW1M0{pnWnrrs ' NNW My10a00MOvNe 000V2 MAA ' M m. cM .M V vv... epe a. 01 QI QI 00 OI Ge NNNNN M M M M M M M M 4444441.4 4 ^0 0 00000 7.-r-..0 n N n V M p 0 MN,-.-00 0 0'n O 0'r 2 r r xOD0 0 z—,,,,,,, a0 0, NNNMV0 ^nNV0non oN N0n0 00V0 0 paaVV 06n6MMMnoMm NQ�nn nwvn 0M682 paopP ON;7, MM0.7^ VVV VfVV_ pVY vOV4Y YOOOV OVVVQ OOV OpO MMMMMNN cNg M r444.44.-4 0.28 gENS8 WY2rN YOYOr WNWOr 0MWyA W OZ6O OrWWV Yg2 ONr1NOMNNn n00M0OOOONWN00m Nrnmmoo000 0N � 00nM, nnnNO3N §Wm 22020 22240 00220 2M002 N$0UNNNNNNNNW N ry O€0 , Nv7p,- prWDOrO0VMbOMWNrOMOV O0ry _ 000 0 O Q0C0. NV MOOO } 0 a Q p 846 10 1yrOMO OOO0l0 GODWOO aN-NNN 022M4 4"4222 0p0 rt. N- cMN 000 00000 nnn, hnnnn nnnnn nnNnn nnNnn n-- tom 4 3 p N N> M 0 N 1�m WyyND0,00WrOMry VMNOMMYWrW pMVO 7; p - � ' 01OO NW 0 .- OW0 D wLL� ZZ NM . ppN C0GnVOMM r0Y nO MN NMNN OqO O JIL K LLr0OO ' 0N WNNN0 rNN NNN MNNV NNn'. NNNN NNNNN NNNNN NNNNN NNN ,.SOUOU ...2121.7.21._12, w' ° mmmmmm 2CW1•N0MN2MrMNNV NMmWN NNNNv r)0aO n0NVp 2q2 ANM 2822X gAgg 2MSM2 SM«a aanti,w 0'1 0 888 S888 88888 88888 88888 88 88 gEg QF - E -600Wppr NW-wNpppp -vr0NnNpvaMN7-Np ho. 0 C C C C 0 cN006666-6., D 60 WN aM6 66MMM MM MM -do. M 00M10 10rrOO 646D00py O LL.N0000Nm O 33A 35$31 33A31 ASAAn 33222 NNNNN 26aa $ n 7 TJT F LT TJU 10 0 0 10 f0 10 w w 0 0 0 1 0 .0000 0.000 0 0 0 0 0 0.000 0100 • 0 <<<<.4.(< j It' WN -'-rp Nr Wry $rdNQ MNnMMrm�NN MNAWm NnYWCO AAA VFEONN�0NO 2 fOOg ggggg e-'--G N Ci NNON2NN Ngg (66006 ^ QO0- N 00 fqOMNWzNcc , > ON N n 80 0 M wtONVV0 ^ _ N N y O W d r g 1p 1p 1p 1p ,Jl p LL = d ,7:00- e.-.0V0 .°r 0 0 00 W m 0 W, C v r r ol 1V.j V CD M N 0.-,-,-M .-1p 10 M 1M1p V M 10V M M W N 8 p giN N p 2 COO 1 0.,2 N O 0 1�.- . 0 m 1 Z;;8 0)00(0)0) g 0 0 W W 0(0(000 1000)010 0 0 2 0 0 Q at at 0(0 m p1 O) m LL O A o f0 1 J M a 4.. . Y O:. 00,,a.- LL m m 62 N , mu_ 0 U 1Nn m t I 41 ^O Y 4 C +1 LL > _ CN M. nMON ONO0W .-NVvv 0pO O 20N NO m M0 1+ 0O o Map4444 viv.:6 NNpNO OOO^ OnOrmWW0W OmsNMMYjm= GCGNN M OOO OOOOa aOOOO OOnOO OOOOO OOO r^^(yy aj 00 0 8 to 0 2 3 h I u m e 2 d e m ,t8.2 I E2 2 2 O 0 0 }0 O . mm 8 J y . 2 a 2 J C N i W W W t� Z 0 p 3E W— mF 0 U y E Q 7 3 w x N E 0 a c m37, o m<^ E w ij"' c `0 90 _ p N « N U O O IIH g U os 5 E E 0 U TREE= CM/ WELLHEAD= FMC J MD D I:b .' Z-113 SAF NOTES: WELL ANGLE>70°@ 9096'. ACTUATOR= CMI ***4• CHROME TBG&LNR*** KB.ELEV= 90.37' J I BF.ELEV= 56' 2174' I-4-1/2"HES X NIP, ID=3.813" KOP= 284' Max Angle= 96°@-.9-i-76. 20"COND - 108' 2316' 113-3/8"X 9-5/8"BKR ZXPN LTP w/FLEXLOCK Datum MD= 11393' LNR HGR, ID=9.55" Datum TVD= 6637'SS GAS LIFT MANDRELS 13-3/8"CSG,68#,L-80 BTC,ID=12.415" --I 2503' ST MD TVD DEV TYPE VLV LATCH` PORT DATE 5 3655 2805 63 KBG DMY SBK 0 09/14/11 9-5/8"LNR,40#,L-80 BTC, -I 4848' 4 5892 4206 37 KBG DMY BEK 0 09/14/11 .bpf,ID=8.835" 3 1 2 78327092 58155203 3934 KBGKBG DMYDMY SBKSBK 00 09/14/1109/14/1 Minimum ID = 3.813" @ 2174' 1 8352 6204 44 KBG DMY SBK 0 09/14/11 4-1/2" HES X NIPPLE 1 ' 8595' -14-1/2"HES X NIP, ID=3.813" 4-1/2"NDPG SINGLE SENSOR SUB, -1 8626' 1------ ■ x 8655' -7"X 4-1/2"HES TNT PKR, ID=3.856" ID=3.958" ' ' 8696' -14-1/2"HES X NIP,ID=3.813" ' ' 8768' -14-1/2"HES X NIP, ID=3.813" 8771' 17"X 5"BKR HRD-E ZXP PKR w/TIEBACK SLV,ID=4.320" 4-1/2"TBG, 12.6#,13CR-85 VAM TOP, - 8781' .0152 bpf,ID=3.958" 8781' -14-1/2"WLEG, ID=3.958" 8794' -7"X 5"FLEXLOCK LNR HGR, ID=4.320" 8803' H 5"X 4-1/2"XO, ID=3.890" 7"BKR WHIPSTOCK(08/31/11) - 8912' 7"MILL OUT WINDOW 8912'-8924' BKR CMU SLIDING SLEEVE,ID=3.813"BX PROFILE SIZE NO# TOP DEPTH Opn/Sqz DATE PBTD 9156' 47'v'v.V4 �♦ 4-1/2" 6 8974 09/14/11 �� ..11�.� VP 4-1/2" 5 9371 09/14/11 7"CSG,26#,VAM TOP HC, 9240' ............• �♦. /♦ 4-1/2" 4 10052 09/14/11 .0383 bpf, ID=6.276" Y a j I� ir/ 4-1/2" 3 10551 09/14/11 �i , 4-1/2" 2 10863 09/14/11 �/ 4-1/2" 1 11188 09/14/11 Imo. /1 PERFORATION SUMMARY VP REF LOG:LWD ♦ ANGLE AT TOP PERF: IIP VP. VP. 11263' -1BKR LOCATOR SUB 1 Note:Refer to Production DB for historical perf data /♦ SIZE SPF INTERVAL Opn/Sqz DATE 0� 0 ir♦ OIL SWELL PACKERS / NO SIZE TOP DEPTH MIN ID /♦ 7 4-1/2" 9107 3.958" �/ Nr. 6 4-1/2" 9487 3.958" �i 5 4-1/2" 10085 3.958" 4 4-1/2" 10585 3.958" PBTD -{ 11376' ��•�1� 3 4-1/2" 10897 3.958" 2 4-1/2" 11293 3.958" 4-1/2"LNR, 12.6#, 13CR-80 VAM TOP, .0152 bpf,ID=3.958" -1 11393' 1 4-1/2" 11335 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS AURORA UNIT 09/16/11 014 ORIGINAL COMPLETION WELL: Z-113 09/16/11 PJC DRLG HO CORRECTIONS PERMIT No: 2110840 09/29/11 ?/JMD DRLG DRAFT CORRECTIONS API No: 50-029-23450-00 SEC 19,T11 N, R12E,846'FNL&2236'FWL I BP Exploration (Alaska) bp Date 12-01-2011 Transmittal Number:93220 ta*' EIVED BPXA WELL DATA TRANSMITTAL Enclosed are the materials listed below. DEC 0 i 2011 (BPXA FIELD LOG DATA) Ow :, . , 4.=, in;z. ? "te If you have any questions, please contact Doug Dortch at the PDC at 564-4973 Delivery Contents 1 CD-ROM Containing Field Log Data & Electronic Log Prints for the following wells: R-12A 2.‘k—055 -113 2t - 1 0 Z-11 NIVA* 1AL Please Sign and turn one copy of this transmittal. Thank You, Doug Dortch Petrotechnical Data Center Attn: State of Alaska - AOGCC Attn: Christine Shartzer 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Petrotechnical Data Center LR2-1 900 E. Benson Blvd. PO Box 196612 Anchorage,AK 99519-6612 McMains, Stephen E (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Monday, November 07, 2011 2:31 PM To: McMains, Stephen E (DOA) Subject: PBU Z-113/ PTD#211-084 -13) - H i Steve, Please reference the following well: Well Name: PBU Z-113 Permit#: 211-084 API #: 50-029-23450-00-00 Date of Test: 11/05/11 Type of Test: IPT (Initial Production Test) Choke Size: 96 Choke Unit: 64THS Production Method: Gas Lifted Duration (Hours Tested): 12 Top Reference (Top Perf MD): 8974' Bottom Reference (Bottom Perf MD): 11221' Tubing Flowing (Pressure): 260 Casing Pressure: 1,060 Total Test (Rate f/ 0, W, G): 297 -0- 316 24-Hour Rate (0, W, G): 593 -0- 631 Gravity (Oil, API): Not Available GOR (Gas-Oil Ratio): 1,064 This well began Production on October 26, 2011 Method of Operations on this date: Gas Lifted 1 BOP usage on Doyon 14 Page 1 of 1 Regg, James B (DOA) 211034-o From: AK, D&C Base Operations Superintendent[AKDCBaseOperationsSuperintendent@bp.com] Sent: Wednesday, September 07, 2011 8:01 PM 9i ]` To: DOA AOGCC Prudhoe Bay / Cc: AK, D&C Rig 14 Well Site Leader; Ciolkosz, Ryan R; AK, D&C Base Operations Superintendent; Cismoski, Doug A; Daniel, Ryan; Egbejimba, Uchenna J; Kilfoyle, Jeffery A; Mountford, Carl F; Schultz, Mikel; Rossberg, R Steven Subject: BOP usage on Doyon 14 Attachments: Z-113 9-7-11.doc Guys, Here is the BOP usage report for last night when the rig used the annular to perform a controlled exhale test. «Z-113 9-7-11.doc» Alan Madsen GPB Rotary Drilling Superintendent 907-306-4997 cell 907-659-4618 North Slope office 907-564-5780 Anchorage office 140 4v4 4.44. 44 4444,414 x l tiowa 4v:,P,l Gc 1444 GI goo 444 44.1x. 9/8/2011 Blow Out Preventer Equipment (BOPE) Usage Report to the AOGCC The purpose of this document is to ensure timely reporting to the AOGCC of any BOPE use to prevent the flow of fluids from a well. Field Superintendent Name: Alan Madsen Wellsite Leader Name: Chris Kobuck Contact Number: 907.659.5329 Contact Number: 907.659.4503 Traction Number: IR# 3937977 Well Location/Name & Rig Name: Z-113/ Doyon 14 Permit To Drill (PTD) Number: 2110840 Date and Time of Incident: 9/7/2011 @ 02:20 HRS Original Scope of Work: Due to extreme losses the drilling assembly was tripped out of the hole and replaced with a "Dumb Iron" assembly more suitable for spotting Lost Circulation Materials. Operational Description Leading up to Well Control Event: After failing to control the losses with a previous squeeze a second one was conducted while remaining on bottom. Once the squeeze had been completed and well pressures bled to zero the well was observed to be flowing slightly. The annular was closed to prevent flow from the wellbore and to conduct a controlled exhale test. It was confirmed to be breathing back slightly. The pressures were bled to zero thru the choke manifold and the annular opened. The well was confirmed to be static. BOPE Used and Reason: The annular preventer was closed on the drill pipe to secure the well and perform a controlled exhale test. Is a BOPE Test Required after use ( Yes/ No): Yes If no, why? _24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: Test the annular once this assembly is tripped back to the surface. Additional Comments: Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa.aogcc.prudhoe.bay(aalaska.gov Email CC List BP WSL Ryan Daniel Wells Team Leader Jeff Kilfoyle Engineering Team Leader Operations Drilling Engineer-Well File BOPE Usage Report for AOGCC Rev 1 September 1, 2010 Wells Operations Manager Drilling &Completions Engineer Manager Wells Intervention Manager BOPE Usage Report for AOGCC Rev 1 September 1, 2010 Revised BOPE Usage report(Z-113) Page 1 of 1 . Regg, James B (DOA) From: Miller, Kenneth C [kenneth.miller2@bp.com] Zi(0b449 Sent: Tuesday, September 06, 2011 5:40 PM To: DOA AOGCC Prudhoe Bay �e'161 6/1 6I tt Cc: AKDCRig14WellSiteLeader@bp.com; Ryan.Ciolkosz@bp.com; I AKDCBaseOperationsSuperintendent@bp.com; CismosDA@BP.com; Ryan.Daniel@bp.com; EgbejiUJ@bp.com; kilfoyja@bp.com; Mountford, Carl F; Schultz, Mikel (Mikel.Schultz@BP.com); steven.rossberg@bp.com Subject: Revised BOPE Usage report (Z-113) Importance: High Attachments: BOPE Usage Report_Z-113_9-6-11_final_revised.doc Apologies to all. Here is a revised report with wording that better depicts the actual event based on further investigation. «ROPE Usage Report_Z-113_9-6-11_final_revised.doc» Ken Miller Ops. Sup't/Well Site Leader Cell: 907-227-9214 From: Miller,Kenneth C Sent: Tuesday,September 06,2011 3:37 PM To: AOGCC Inspector(doa.aogcc.prudhoe.bay@alaska.gov) Cc: AK,D&C Rig 14 Well Site Leader(AKDCRig14WellSiteLeader@bp.com);Ciolkosz,Ryan R(Ryan.Ciolkosz@bp.com);AK, D&C Base Operations Superintendent(AKDCBaseOperationsSuperintendent@bp.com);Cismoski,Doug A(CismosDA@BP.com); Daniel,Ryan (Ryan.Daniel@bp.com); Egbejimba,Uchenna)(EgbejiUJ@bp.com);kilfoyja@bp.com; Mountford,Carl F; Schultz, Mikel (Mikel.Schultz@BP.com);steven.rossberg@bp.com Subject: BOPE Usage report (Z-113) « File: BOPE Usage Report_Z-113_9-6-11_final.doc» Ken Miller Ops. Sup't/Well Site Leader Cell: 907-227-9214 9/8/2011 Blow Out Preventer Equipment (BOPE) Usage Report to the AOGCC The purpose of this document is to ensure timely reporting to the AOGCC of any BOPE use to prevent the flow of fluids from a well. Field Superintendent Name: Ken Miller Wellsite Leader Name: Frank Roach Contact Number: 907.659.5329 Contact Number: 907.659.4503 Traction Number: IR# 3937038 Well Location/Name & Rig Name: Z-113/ Doyon 14 Permit To Drill (PTD) Number: 2110840 Date and Time of Incident: 9/6/2011 @ 0130 HRS Original Scope of Work: Due to extreme losses the drilling assembly was tripped out of the hole and replaced with a "Dumb Iron" assembly more suitable for spotting Lost Circulation Materials. Operational Description Leading up to Well Control Event: After tripping to bottom and performing a 78 bbl LCM squeeze, the well was opened up and appeared to be flowing. The annular was closed to prevent flow from the wellbore. After confirming it was not an out of balance situation, due to the lost circulation material, it was determined the well was breathing slightly. Pressure was bleed off thru the choke and the annular was opened. The well was confirmed to be static and normal operations resumed. BOPE Used and Reason: The annular preventer was closed on the drill pipe to secure the well. Is a BOPE Test Required after use ( Yes/ No): Yes If no, why? 24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: Test the annular once this assembly is tripped back to the surface. Additional Comments: Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa.aogcc.i rudhoe.bay(a alaska.gov Email CC List BP WSL Ryan Daniel Wells Team Leader Jeff Kilfoyle Engineering Team Leader Operations Drilling Engineer-Well File Wells Operations Manager Drilling & Completions Engineer Manager Wells Intervention Manager BOPE Usage Report for AOGCC Rev 1 September 1, 2010 /<� 4.Y✓ rb a Er•�, [...s.. =I.�` '_. °�: ki7 �,p r— r F k r L p t._. !F f Y , C r: k �� i M ¢ r- B ,'1 i i _ 6 a _` SEAN PARNELL, GOVERNOR L1,) t! LI LJ L_r L t_k if i_ l_ LI' ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 Ken Allen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Borealis Pool, Z-113 BP Exploration (Alaska), Inc. Permit No: 211-084 (revised) Surface Location: 4434' FSL, 2717' FEL, SEC. 19, T11N, R12E, UM Bottomhole Location: 1827' FSL, 4497' FWL, SEC. 17, T11N, R12E, UM Dear Mr. Allen: Enclosed is the approved application for permit to drill the above referenced development well. This permit supersedes and replaces the permit previously issued for this well dated July 13, 2011. 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. Sincerel, 411/1111 1 Jso . orm. m. ..ner DATED this 9" day of September, 2011. cc: Department of Fish 8s Game, Habitat Section w/o end. (via e-mail) Department of Environmental Conservation w/o end. (via e-mail) STATE OF ALASKA -- 4 - ALASI' 1IL AND GAS CONSERVATION COMMI )N 9-.0?-// • PERMIT TO DRILL 20 AAC 25.005 Revised 08/31/11 (BHL, 1 a.Type of work: lb.Proposed Well Class: ®Development Oil 0 Service-Willi 0 Single Zone lc. pec if well is proposed for: ® Drill 0 Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Gas 0 Gas Hydrates 0 Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp 0 Shale Gas 2. Operator Name: 5.Bond: ® Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska)Inc. Bond No. 6194193 Z-113 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 14,498' ND 6,667' Prudhoe Bay Field/Borealis 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Pool Surface: ADL 028262 4434'FSL,2717'FEL,SEC. 19,T11 N,R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 3722'FSL,243'FEL,SEC. 18,T11 N, R12E, UM August 9,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1827'FSL,4497'FWL, SEC. 17,T11N, R12E, UM 2560 10,600' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 90.37' feet 15.Distance to Nearest Well Open Surface: x- 599958 y-5959240 Zone- ASP4 GL Elevation above MSL: 56' feet to Same Pool: 4,440' 16.Deviated Wells: Kickoff Depth: 300' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 95 degrees Downhole: 3652 Surface: 2977 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD TVD MD ND (including stage data) 42" 20" 129.5# X-65 Weld 80' Surface Surface 80' 80' 260 sx Arcticset(ADorox.) 16" 13-3/8" 68# L-80 BTC 2510' Surface Surface 2510' 2239' 1744 sx DeeDCrete.328 sx Class'G' 12-1/4" 9-5/8" 40# L-80 BTC 2234' 2317' 2119' 4851' 3423' 147 sx LiteCrete.770 sxClass'G' 8-3/4" 7" 26# L-80 Vamtoo 9239' Surface Surface 9239' 6731' 178 sx LiteCrete. 181 sx Class'G' 6-1/8" 4-1/2" 12.6# 13Cr85 Vamtoo 4471' 8764' 6466' 14498' 6577' Uncemented,w/Sliding Sleeves&Swell Packers 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth TVD(ft): Junk(measured): Casing Length Size Cement Volume MD TVD Conductor/Structural Surface Intermediate •REC E Production ,e �P/ Liner SEP 01 2Gl1 AIaskti*t&baa Com. Perforation Depth MD(ft): Perforation Depth ND(ft): Ant fags 20.Attachments: ® Property Plat ®BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ®Diverter Sketch 0 Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Guy Schwartz Date: 08/31/11 22. I hereby certify that the foregoing is true and correct. Contact Ryan Ciolkosz,564-5977 Printed Name Kris Honas for Ken Allen Title Acting,Engineering Team Leader Prepared By Name/Number Signature �fst Phone 564-4841 Date )X'1 11 Terrie Hubble,564-4628 Commission Use Only Permit To Drill API Number: Permit A val Date: See cover letter for Number: 211-084 50-029-23450-00-00 11131 ( other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed meth ne,gas hydrates,or gas contained shales: Ii Other: 3 SOV fuse; ` f3o P te S Samples Req'd: rL es No Mud Log Req'd: ,_❑,(Yes I'No 250 ,j / r.v,wLA i- rt (i�s..J H2S Measures: Yes ❑No 0 -• al Survey Req'd: YJ Yes ❑No Di•O 4.4)2 P/ P J+-1 pwt .'a.t.t a`re(y daPteAPPROVED BY THE COMMISSION Date 9- -/( ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is veil for 24 months from the da - of -•rov 20 AAC 25.005(g) Submit In Duplicate " Z•" ORIGINA ,‘ * Well Name: Z-113 PTD#: 211 -084 Drill and Complete Current/Plan Summary Name Position Office Home Cell Ryan Ciolkosz Drilling Engineer 5977 306-5626 Stephen Crumley Geologist 4078 726-5640 441-1478 Bob Dawson Ops Geologist 5264 345-3359 242-2391 Mike Francis Pad Engineer 4240 644-0534 529-8678 Type of Well (service / producer/ injector): Producer Targets Northing Easting Z TVDss Township Range Section FSL FEL Horizontal Section Target 5963841 602353 6582 11N 12E 18 3722 243 Target 5963853 603148 6625 11N 12E 17 3723 4727 Target 5963171 604701 6525 11N 12E 17 3019 3186 Target 5962854 605209 6553 11N 12E 17 2695 2684 Target 5962466 605907 6555 11N 12E 17 2297 1992 BHL 5962012 607125 6577 11N 12E 17 1826 783 API NUMBER: 50-029234500000 Rig: Doyon 14 Start Date: 08/9/2011 Operating Days Left to 12 complete: MD: 14,498 TVD: 6667' RT/GL: 34'/56' RTE: 90.37' Well Design: Grassroots Big Bore Slim Hole, Kuparuk Horizontal Producer, Pilot hole into Kuparuk.4 '/2" 13Cr tubing with 4 '/2" solid liner with swell packer and ✓ sliding sleeve design. Currently have 7" set at base of Kuparuk reservoir. Objective: Drill and complete new Kuparuk C and A Sand horizontal producing well Directional Plan: Version: SLB P8 KOP: 8914' MD, build 10/100 Maximum Hole Angle: 95°horizontal section Close Approach Wells: All wells pass major risk criteria. Reference anti-collision report Nearest well within Pool Z-113 is 4440' from closest well (Z-100) Z-113 Permit Application Page 1 Distance to Nearest Property 10,600'to PBU boundary Line: Logging Program: Production Interval Drilling, MWD: GR, RES, NEU,Azimuthal/Density Caliper Open Hole: None Cased Hole: Cement Bond log over 7" casing Mud Program: 6 1/8" Production Hole: Rheliant Mineral Oil Based Mud Interval Density YP PV MLVoIts HTHP (ppg) Fluid Loss Csg Window to TD 10.2 15-19 <28 >600 < 5.0 Current Casing/Tubing: Hole Size Csg/ Wt/Ft Grade Connection Length Top Btm Tbg O.D. MD/TVD MD/TVD RTE 42" 20" 129.5 X-65 WLD 80' GL 80'/80' 16" 13-3/8" 68 L-80 BTC 2510' GL 2510'/2239' 12-1/4" 9-5/8" 40 L-80 BTC 2534' 2317'/2119' 4851'/3423' 8-3/4" 7" 26 L-80 Vamtop HC 9239' GL 9239'/6731' Proposed Casing/Tubing Program 6 %8' 4 '/" 12.6 13Cr-85 Vamtop 4471' 8764'/6466' 14498'/6577' Tubing 4 '/2" 12.6 13Cr-85 Vam Top 8764' GL 8764'/6466' Z-113 Permit Application Page 2 Formation Markers: (8) Formation Top and Estimated Pore Pressure Predictions NOTE: All standard formation tops are required from GR tie-in point above proposed KOP to TD for sidetracks NOTE: All standard formation tops are required from surface to TD for all new wells NOTE: Formation tops and pressures are required for all fault blocks penetrated and along laterals for horizontal and high-angle wells Estimated Depth Hydrocarbon Estimated Formatio Formation n Top Uncertainty Bearing Pore Pressure (TVDss) (+/-ND ft) (Yes/No) (EMW ppg) THRZ -6290 +/-50' no 9.4 TKLB -6506 +/-50' no 9.4 TKC4 -6526 +/-50' yes Oil/Gas 8.1 TKC1 -6536 +/-50' yes Oil/Gas 8.0 TKB/LCU -6558 +/-50' no 9.6 TKA6 -6570 4-50' no 9.6 TKA5 -6581 +/-50' yes Oil 9.8 TKA4 -6606 +/-50' no 9.6 TMLV -6633 +/-50' no 9.6 OWC 6655 Well Control: Annular preventer will be tested to 3500 psi. Rams will be tested to 3500 psi. The BOP test frequency will be conducted on a 14 day frequency, with a function test every 7 days. Except for significant operational issues that may effect well integrity or pose safety concerns, an extension to the 14 day BOP test period should not be requested. Diverter, BOPE and drilling fluid system schematics of Doyon 14 are attached to this permit to drill. 8-3/4" Intermediate 7" Casing BOPE Hydril, 13-%", 5000 psi Maximum Anticipated BHP 3,406 psi @ 6,659' TVD, 9.8 ppg EMW Maximum Surface Pressure 2,740 psi (0.10 psi/ft gas gradient to surface) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 3,500 psi/250 •psi 7" Casing Test 3,500 psi surface pressure Integrity Test—6-%" Hole FIT/LOT after drilling 20'—50' of new hole Kick Tolerance Infinite with a 11.0 ppg FIT/LOT Planned Completion Fluids 10.2 ppg Corrosion Inhibited Brine/6.8 ppg Diesel Disposal: Z-113 Permit Application Page 3 • No annular disposal in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for disposal. Haul all Class I wastes to Pad 3 for disposal. Z-113 Drill and Complete Procedure Summary 1. Set whipstock at top of Kuparuk reservoir. Mill window and 20' of new formation. Perform FIT/LOT 2. MU 6-%e' build section BHA. RIH and build to horizontal. POOH.�.I As. ?"e? c.tem"4 '14 b 3. MU 6-Ya' drilling assembly. Drill ahead in Kuparuk sands to TD. Circulate and condition mud. MAD- Pass/Backream as required and POH for 4-1/2" liner run. Lay down excess DP as necessary. 4. Run the 4-'/2" solid liner with swell packers and sliding sleeves. There will be 150' of overlap into the 7" intermediate casing. Set liner hanger and liner top packer as per BOT Rep and test LTP to 3500 psi for 30 minutes. Release from liner and displace well to brine. POOH and LD Drill Pipe. 5. Run 4-'/2' chrome completion w/SLB pressure gauge and land tubing hanger. RILDS. 6. Drop RHC ball and rod on rollers and set packer and test tubing to 3,500 psi and annulus to 3,500 psi. • Shear the DCR-1 valve and pump both ways to confirm circulation ability. 7. Install and test TWC. Nipple down the BOPE. Nipple up and test double master valves to 5000 psi. • RU DSM and pull TWC. 8. Freeze protect the well to 2000' ND by first pumping corrosion inhibited brine down the IA with rig pumps followed by diesel down IA w/ Hot Oil truck, taking clean brine returns to surface. Allow diesel • to u-tube into tubing. 9. Install BPV in tubing hanger. Install all annulus valves and secure the well. Ensure that T/IA/OA are protected with two barriers. RDMO. Post-Rig Work: 1. Install tree with electric valve. Pull BPV. • 2. R/U Slickline and pull ball and rod/RHC. 3. Replace the DCK shear valve with a dummy GLV. 4. Pull dummy valves and replace with gas lift valves. Pull VR Plugs. 5. Install wellhouses and flowlines. 6. Pump RG2401 (Blue-Goo) on top of surface casing cement. 7. Flow back to test separator Z-113 Permit Application Page 4 Drilling Critical Issues POST THIS NOTICE IN THE DOGHOUSE I. Well Control/ Reservoir Pressures: A. Based off stethoscope run done in the previous pilot hole, the Kuparuk A sands are expected to be at original reservoir pressure (9.8 ppg). The Kuparuk C sands are under pressured at (8.0 pp9) IV. Faults Formation Where TVDSS Throw Encounter Fault MD Intersect Intersect Est. Throw , Direction Uncertainty Fault#4- Horizontal section 10420 6580 15 SW +/- 150' M.D V. Lost Circulation / Breathing: A. F#4 is in the horizontal section dipping to the SW and would cross it in the fracture zone on the southern most edge. VIII. Stuck Pipe A. Possibility for unstable clays in the Kuparuk B. Anticipate Kuparuk B in target area. Maintain proper mud system and try to minimize Kuparuk B penetration IX. Hydrogen Sulfide A. All Z Pad gas lift wells are expected to have H2S levels in the 20 to 120 ppm range; result of PBU gas lift gas. This site should be treated as an H2S site with all the required precautions. Date of Well Name 1-12S Level Reading #1 Closest SHL Well H2S Level Z-100 118 ppm 6/12/2010 #2 Closest SHL Well H2S Level Z-20 30 ppm 7/20/2010 #1 Closest BUIL Well H2S Level Z-100 118 ppm 6/12/2010 #2 Closest BHL Well H2S Level V-122 16 ppm 7/6/2010 Max. Recorded 112S on Pad/Facility Z-100 120 ppm 2/7/2010 Other Relevant H2S Data (H2S alarms from rigs,etc.) CONSULT THE Z PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION Z-113 Permit Application Page 5 TREE= 4-1/18" I SA, . NOTES: ***CHROMETBra** I WELLHEAD= cFMCZ-1,3 P ro p o s e d ACTUATOREAD = Electric KB.ELEV= BF.ELEV= KAP= 300 20"CONDUCTOR 108' Max Angle= 94 @ 963`, Datum MD= , J 2000' I—4-1/2"HES X NIP,ID=3.813" --- Datum-TVD= 13-3/8"CSG,68#,L-80 BTC, ID=12.415" H 2510' 231r H13-3/8"X 9-5/8"BKR ZXPN LTP/HGR 95+8'LN 4( #L-o BTC X88 ' H 485r L , GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 6 3755 2800 DUM RK 1" Minimum ID = 3.813" 5 5783 4200 DUM RK 1" 4 6994 5200 DUM RK 1" 4-1/2" X Nipple L 3 7711 5800 DUM RK 1" 2 8243 6200 DUM RK 1" 1 8916 6600 DCR-1 RK 1" 8600' —I4-1/2"HES X NIP,ID=3.813" 14-1/2"NDPG SINGLE-SENSOR SUB,ID=x.xxx" H 8630' `"6 8660' 7"X 4-1/2"HES TNT PKR Z 0 ID=3.870" I I , 8690' H4_1/2"HES X NIP, ID=3.813" II 8727 -412'1$X1s?123813' 4-1/2"TBG, 12.6#,13-Cr,VT,.0152 bpf,ID=3.958"H 8770' 8764' -17"X 5"BKR ZXP PKR&LNR HGR wMEBACK SLV,ID=xx" 7"BKR WHIPSTOCK H TKC4 MILLED OUT WINDOW(7") 8914'-8926' 7"PBTD 9100' 7"CSG,26#,L-80,VT HC, .0383 bpf, ID=6.276" —19239'I •4♦�♦�•�`�♦4♦�•�•4•�• if 4, 4-1/2"Bkr CMD Siding Sleeve @ xxxx', 0 xxxx',xxxx',xxxx',and xxxx' i% • OBM Sw el Packers @ xxxx', 4, �� xxxx',and xxxx' 4, fr if 3.5"0BM Sw ell Packers @ xxxx' 4-1/2"Solid LNR, 12.6#, 13CR-85 VT,ID=2.992" --I 14498' DATE REV BY COMMENTS DATE REV BY COMMENTS AURORA UNIT 04/20/11 RRC Proposed Completion WELL: Z-113 PERMIT No: 211-084 API No: 50-029234500000 SEC19TWP11 N RGE12E FSL 4433'FEL 2717' BP Exploration(Alaska) tp N 01= W660)U) UU0 *-UnUOQUW 0nnQW MMUNO nNUOO CWNN.-0) WWQn,- OmNCONOMn00QQO) O "O a= 46066 CNNC)Op)04NN6664 N71-n ‘-r..:‘-66 nWO NU) nWW U)NOTU) QU)UUUMOp0 ODmn0 • mO000 000)-N MMQO NMQ0CppN - -Nh N a)W NNN NNNNN N N N N M M MMM M 6 N M Q Q Q Q U)o m COO COD COD COD t00 COO COO U0 f00 f00 U0 COO U0 t00 COO t00 COO COO t00 COO COO COO COO W t00 COO COO COO t00 t00 M d 2 0- m W O^ M pp Qm6 Q m mUUDpQNN O Nyy�tUppe�Q p m n N0 V.10)00 C0p Q C .-tOnMMWWWNVCONUUOMWONMWQOnnWW0 LKON4UU NNNOU NNl- NNONn U)tONO006N4 WWWWW W mU,pUmTpmN-NTm.- n^'n 0 WWWmUUN 0m MMMMMMMMMMMMMMMMMMMMMMMMM MMMNN0 Zmmmm pUU TT00pp WmppT 88838N TT0T N NW00UUUUUUWWUWU UUU0U0UWUWUUUYU OM aD A U N M M M MQ V)0,0 M M Q M Q Q W W m M Q Q C 0 U)W W 0 m NNNNN N N N N M M M M Q Q Q Q Q Q Q U)U)U)W W W W W n n O C CO6 t0 t0 tG 666660000 W W W ODUCG 6 1010600066666 °,1" .i?.: 60 0 W O)0,0 0 0000000000 00000 00000 00000 CM J o Q O W O O 00000 00000 00666 OOO00 00000 0o u)OoCOo 66666 66664 44444 44464 44464 CM C. -- .m..- =Q -U)m 0)0)10)0 00000 00100) m N=Q W 00 Q O I n N M n n N C Q 0)0 W m m m m W p Qp .0:.0. 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N }§ 2 ; }! ........k,.......,....::., «< N UG$a)l=mng s >>> 0 0 —o 0 - 0 0 — 0 - O —8 0 - 0 — 0 0 -- o 0 -0 O M T 0 [0-o N —o oa co -0M M �N�� - O 2 co a.n.Nrvo_ —g vcp- aic o � m - 8 , —o - o C —e N_ - o _c 8 _ s 0 0 - -o m o •- —co u3i 0 - 2 —8 - —in rn _8 0 _ 0 0 rn N _ 0- c,) p N —8 M � N g CO < <C O 8 O '- O �A O G O O :n v1 V C :h ;h N N r (uim pi.)uoileiedeg aaluaj o;ailuao BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-113 Project: Prudhoe Bay TVD Reference: Z-113 Actual @ 90.37ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-113 Actual @ 90.37ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-113 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-113 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#8 Z-113 Offset TVD Reference: Offset Datum Reference Plan#8 Z-113 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval 5.00ft Error Model: ISCWSA Depth Range: 8,883.08 to 14,498.44ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,646.41ft Error Surface: Elliptical Conic Survey Tool Program Date 8/29/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.00 624.00 Z-113PB1 Srvy 1 GYD-GC-SS(Z-113PB1 GYD-GC-SS Gyrodata gyro single shots 677.55 2,422.62 Z-113PB1 Srvy 2 MWD+IFR+MS(Z-113P MWD+IFR+MS MWD+IFR+Multi Station 2,575.61 4,756.12 Z-113PB1 Srvy 3 MWD+IFR+MS(Z-113P MWD+IFR+MS MWD+IFR+Multi Station 4,907.21 4,907.21 Z-113PB1 Srvy 4 Inc=Trend(Z-113PB1) INC+TREND Inclinometer+known azi trend 5,004.19 8,883.08 Z-113PB1 Srvy 5 MWD+IFR+MS(Z-113P MWD+IFR+MS MWD+IFR+Multi Station 8,883.08 8,914.00 Plan#8 Z-113(Z-113) MWD+IFR+MS MWD+IFR+Multi Station 8,914.00 9,150.00 Plan#8 Z-113(Z-113) INC+TREND Inclinometer+known azi trend 9,150.00 10,650.00 Plan#8 Z-113(Z-113) MWD MWD-Standard 9,150.00 14,498.14 Plan#8 Z-113(Z-113) MWD+IFR+MS MWD+IFR+Multi Station 8/29/2011 1:37:11 PM Page 2 of 4 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-113 Project: Prudhoe Bay TVD Reference: Z-113 Actual @ 90.37ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-113 Actual @ 90.37ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-113 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-113 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#8 Z-113 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB W Pad Plan W-49(1-2)-Plan W-49-Plan#3 W-49 14,497.45 9,860.00 1,148.19 366.41 957.77 Pass-Major Risk W-26-W-26-W-26 Out of range W-26-W-26A-W-26A Out of range PB Z Pad Plan lvi Z-34(SM)v6-Plan Z-34-Plan#8 Z-34 vl Out of range Plan lvi Z-42(NP)v6-Plan Z-42-Plan#5 Z-42 vE Out of range Plan lvi Z-61 (NF)v6-Plan Z-61 -Plan#4 Z-61 vE Out of range Plan lvi Z-69(NJ)v6-Plan Z-69-Plan#3 Z-69 v6 Out of range Plan Kup Z-105(SN)v6-Plan Z-105-Plan#4 Z-1 Out of range Plan Kup Z-105(SN)v6-Plan Z-105PB1 -Plan#4 Out of range Plan Kup Z-115(NG)v6-Plan Z-115 w/PH-Plan Out of range Plan Kup Z-115(NG)v6-Plan Z-115 wo/PH-Pla Out of range Plan Kup Z-115(NG)v6-Plan Z-115PB1-Plan# Out of range Plan Kup Z-116(27+15)v6-Plan Z-116-Plan#1 Out of range Plan Kup Z-116(27+15)v6-Plan Z-116PB1 -Pla Out of range Plan Kup Z-118(30.5)v5-Plan Z-118 v5-Plan#: 12,546.09 10,530.00 782.49 309.83 539.12 Pass-Major Risk Plan Sch Z-202(NB)v6-Plan Z-202-Plan#2 Z-2 Out of range Plan Sch Z-211 (SJ)v6-Plan Z-211-Plan#5 Z-2 Out of range Plan Sch Z-212(NO)v6-Plan Z-212-Plan#3 Z-2 Out of range Plan Sch Z-213(NL)v6-Plan Z-213-Plan#3 Z-2 10,415.87 8,515.45 1,548.21 289.58 1,403.89 Pass-Major Risk Plan Sch Z-214(SK)v6-Plan Z-214-Plan#2 Z-2 Out of range Plan Sch Z-215(SH)v6-Plan Z-215-Plan#2 Z 14,497.83 9,770.00 1,542.78 375.47 1,395.85 Pass-Major Risk Plan Sch Z-216(NI)v6-Plan Z-216-Plan#2 Z-2' Out of range Plan Sch Z-217(NN)v6-Plan Z-217-Plan#3 Z-< Out of range Z-113-Z-113PB1 -Z-113PB1 9,096.61 9,100.00 21.16 152.85 -65.76 FAIL-Major Risk Z-19-Z-19-Z-19 Out of range Z-19-Z-19A-Z-19A Out of range Z-20-Z-20-Z-20 Out of range Z-210-Z-210-Z-210 Out of range Z-210-Z-210PB1 -Z-210PB1 Out of range 8/29/2011 1:37:11 PM Page 3 of 4 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Z Pad Well: Z-113 Wellbore: Z-113 Design: Plan #8 Z-113 From Colour To MD From KOP to TD 8883 8900 Scan interval 30 ft Scale 1 : 15 8900 15000 All wells pass major risk 0 330 30 30C ten) 60 ti ti 9115 9087 • 69 270 90 240 120 210 150 180 Travelling Cylinder Azimuth(TFO+AZI)[°]vs Centre to Centre Separation [15 ft/in] Project: Prudhoe Bay Site: PB Z Pad Well: Z-113 Wellbore: Z-113 Design: Plan #8 Z-113 From Colour To MD From KOP to TD 8883 8900 Scan interval 100 ft Scale 1 : 100 8900 15000 All wells pass major risk 0 330 30 300 60 ti 5-Cr' �0 ti.32 86 270 ' ti 00 I 90 240 _ -_. 120 210 150 3I _ 180 Travelling Cylinder Azimuth(TFO+AZI)[0]vs Centre to Centre Separation [100 Win] 0) ,"; V-PAD V '\ N— GRID C�� 1 i .- I iv,qp;\ li ,9 ■ ■ 33 -`\ t 14 SPINE RD u% • 8 ■ ■ 32 :d tL , \ �'"�•,v 7 ■ ■ 31 tiI I � \ 1 11';.0 WrPAD 6 ■ ■ 30 t A112 ■■ ■ 29 Z-PAD I!�7108 : ■• 28Y •■ 102i • 3 ■ 27. \- THB PROJECT 1161 � 1141 /�! ` / 1 ■ I 104i 1031 = 5 P 584AA 11 .• " ® ■ P-504B (' r . V 10111 VICINITY MAP p NTS ■ 21 ■ 22 39 ■ 11 ■ ■ 23 12 ■ ■ 24 13 ■ ■ 25 14 1111III 26 15 ■ i SLOT 0 '4% c OF,A4�� 16 ■ ' • SLOT 4 i%,�p'.••' '.,4.'1 17 ■ �,' * ,9 tc SURVEYOR'S CERTIFICATE 181 : ■ m J' ".�t'fi1 I HEREBY CERTIFY THAT I AM • ';• tel PROPERLY REGISTERED AND LICENSED 19 • Z-PAD -. 11 THETO PSTATECE LAND OF ALASKAANDNG IN NAT 20 • .> •� THIS AS-BUILT REPRESENTS A SURVEY • %"'•'•'•'••o" MADE BY ME OR UNDER MY DIRECT I55 _ 2 ichard F. AllISOIIy•.. AND THAT ALL DIMENSIONS INAND OTHER DETAILS ARE 68 62 , ��6�8 ' CORRECT AS OF JULY 02, 2011. • 705G 65 — 2181 ,',��f� •`1`-fSS1014ALs.'I` �v 2151 113 t�� 0� I� 21 961 O; 21213I III LEGEND 1015 - 2171 ♦ AS-BUILT CONDUCTOR 203 4221 11 EXISTING WELL CONDUCTOR NOTES: 1. ALASKA STATE PLANE COORDINATES ARE ZONE 4. HAD 27. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L) DATUM. 5. GEODETIC DATUM IS NAD27. 6. PAD AVERAGE SCALE FACTOR IS 0.999911213. 7. DATES OF SURVEY: JUNE 28-30. JULY 1-2, 2011. 8. REFERENCE FIELD BOOKS: NS11-44 PGS. 1-75; NS11-46 PGS. 1-9. AS-BUILT WELL CONDUCTORS: 34i. 40. 42, 50. 51i, 55, 57, 61. 62. 65, 66, 68, 69, 70. 105.113, 115, 201, 202, 203. 2114 2121, 2131. 2141, 2151, 2161, 2171, 2181, SD. SG, SL. NK F. Robes l--+ QIA'w BARNHART I ,7 . ',Evc' JAcaS by _ 8 — 1 ` ;6 0 >e _ _ 71/11 r FRI311 WOZ 21 WOA Z-PAD .w nu — SSMC. ,� WRD PAD EXPANSION DI 7/1/111 ISSUED root avowMION DID 41 ;�;`""' r _ 20� AS—BUILT WELL CONDUCTORS 1 ca 3 GM 1111.no. ila1E REV!i!Nl 8r Mr. mares.^au woo LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC CELLAR SECTION NO. COORDINATES COORDINATES POSITION(DMS) POSITION(D.DD) BOX ELEV. OFFSETS Y= 5,959,100.13 N= 1,179.09 70'17'51.597" 70.2976658' 4,292' FSL 341 X= 600,125.84 E= 1,870.12 149°11'20.998" 149.1891661° 56.1' 2,552' FEL Y= 5,959,100.17 N= 1324.00 70'17'51.616" 70.2976711' 4,294' FSL 40 X= 599,980.94 E= 1870.16 14911'25.221" 149.1903392' 56'0" 2,697' FEL Y=5,959,239.95 N= 1,126.45 70'17'52.965" 70.2980458' 4,431' FSL 42 X= 600,178.47 E= 2.009.96 149°11'19.409" 149.1887247' 56.0' 2,497' FEL Y= 5,959,100.19 N= 1,473.93 70'17'51.636" 70.2976767' 4,296' FSL 50 X= 599,831.02 E= 1,870.18 149'11'29.591" 149.1915531' 56'2" 2,847' FEL Y=5,959,240.04 N= 1,466.46 70'17'53.011" 70.2980586' 4,435' FSL 51i X= 599,838.49 E= 2,010.05 149'11'29.319" 149.1914775' 55'9, 2,837' FEL Y= 5,959,100.12 N= 1,458.95 70'17'51.634" 70.2976761° 4,295' FSL 55 X= 599,846.00 E= 1,870.11 149'11'29.155" 149.1914319° 56.1' 2,832' FEL Y=5,959,240.04 N= 1,421.49 70'17'53.005" 70.2980569' 4,435' FSL 57 X= 599,883.46 E= 2,010.05 14911'28.009" 149.1911136' 55'9 2,792' FEL Y=5,959,239.97 N= 1,376.44 70'17'52.998" 70.2980550' 4434' FSL 61 X= 599,928.50 E= 2,009.98 149'11'26.695" 149.1907486' 55.9' p , 2,747 FEL Y=5,959,239.94 N= 1,436.45 70'17'53.006" 70.2980572' 4,435' FSL 62 X= 599,868.50 E= 2,009.95 14911'28.445" 149.1912347' 56'0' 2,807' FEL y= 5,959,100.15 N= 1,398.94 70°17'51.626" 70.2976739' ' 4,295' FSL 65 X= 599,906.01 E= 1,870.14 I 149°11'27.405" 149.1909458' 56.1 2,772' FEL Y= 5,959,100.11 N= 1,443.99 70'17'51.632" 70.2976756' 4,295' FSL 66 X= 599,860.96 E= 1,870.11 149'11'28.719" 149.1913108' 56.2' 2,817' FEL Y=5,959,100.23 N= 1,134.00 70'17'51.592" 70.2976644' 4,291' FSL 68 X= 600,170.92 E= 1,870.22 149'11'19.683" 149.1888008' 55.9' 2,507' FEL Y=5,959,239.94 N= 1,301.49 70'17'52.988" 70.2980522° 4,433' FSL 69 X= 600,003.45 E= 2,009.95 149°11'24.511" 149.1901419' 56.1* 2,672' FEL Y= 5,959,100.10 N= 1,384.02 70°17'51.624" 70.2976733' 4,294' FSL 70 X= 599,920.93 E= 1,870.09 149'11'26.971" 149.1908253' 56.2' 2,757' FEL Y=5,959,100.05 N= 1,163.88 70'17'51.594" 70.2976650' I 4,291' FSL 105 X= 600,141.04 E= 1.870.04 . 149'11'20.554" 149.1890428' I 55.9' 2,537' FEL Y=5,959,239.90 N= 1,346.45 70'17'52.994" 70.2980539` 4,434' FSL 113 X= 599,958.49 E= 2,009.91 149'11'25.821" 149.1905058' 56'0 2,717' FEL Y=5,959,240.03 N= 1,361.38 70'17'52.997" 70.2980547' 4,434' FSL 115 X= 599,943.56 E= 2,010.04 149'11'26.256" 149.1906267' 55'9 2,732' FEL NOTES: 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. IIII 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. AS—BUILT WELL CONDUCTORS: 34i, 40, 42. 50. 511, 55, 57, 61. 62. 65, 66, 68, 69, 70. 105. 113, 115. 201, 202, 203, 2111. 212i, 2131, 214i, 215i, 216i, 217i, 218i, SD, SG, SL, NK UNatvr __. F Robert , BARNHART +' rrkafo 0 ,bare vii� JA/AC08S bp o�zawtM,. _...__ i -- p r FR811 WOz 21 WOA Z PAD _ uSSD4. ,, WRD PAD EXPANSION 01 7/1/11 ISSUED FOR INPORMA110N IFB JJ 200' AS-BUILT WELL CONDUCTORS tN1. C,TE REvf51'N LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC GRAVEL SECTION NO. COORDINATES COORDINATES POSITION(DMS) POSITION(D.DD) PAD ELEV. OFFSETS Y=5,959,240.18 N= 1,171.46 70'17'52.973" 70.2980481' 4,432' FSL 201 X= 600,133.47 E= 2,010.19 149°11'20.721" 149.1890892' 56.6' 2,542' FEL Y=5,959,239.94 N= 1,451.46 70'17'53.008" 70.2980578° `s 4,435' FSL 202 X= 599,853.49 E= 2,009.95 149°11'28.882" 149.1913561° j 55.9' 2,822' FEL Y=5,959,100.03 N= 1,148.96 70'17'51.592" 70.2976644' 4,291' FSL 203 X= 600,155.96 E= 1,870.02 14911'20.119" 149.1889219' 56'0' 2,522' FEL Y=5,959,100.23 N= 1,308.95 70'17'51.615" 70.2976708' 4,293' FSL 211i X= 599,995.99 E= 1,870.22 149'11'24.783" 149.1902175° 55'91 2,682' FEL Y= 5,959,240.11 N= 1,141.47 70'17'52.969" 70.2980469° 4,431' FSL 212, X= 600,163.45 E= 2,010.12 149'11'19.847" 149.1888464° I 56.4' 2,512' FEL 213Y=5,959,240.04 N= 1,271.44 70'17'52.985" 70.2980514' 56.1' 4,433' FSL X= 600,033.50 E= 2,010.05 149'11'23.635" 149.1898986' 2,642' FEL Y=5,959,100.25 N= 1,293.88 7017'51.613" 70.2976703' 4,293' FSL 214i X= 600,011.06 E= 1,870.24 14911'24.343" 149.1900953' 56.2' 2,667' FEL Y=5,959,100.14 N= 1,354.05 70'17'51.620" 70.2976722' 4,294' FSL 2151 X= 599,950.89 E= 1,870.13 149'11'26.097" 149.1905825° 56.2' 2,727' FEL Y=5,959,240.09 N= 1,316.42 70'17'52.992" 70.2980533' 4,433' FSL 2161 X= 599,988.52 E= 2,010.10 149'11'24.946" 149.1902628' 56.0' 2,687' FEL Y=5,959,239.98 N= 1,156.36 70'17'52.970" 70.2980472' 4,431' FSL 2171 X= 600,148.56 E= 2,009.99 149'11'20.281" 149.1889669' , 56.2' 2,527' FEL Y=5,959,239.98 N= 1,391.46 70'17'53.000" 70.2980556° 4,434' FSL 2181 X= 599,913.48 E= 2,009.99 149'11'27.133" 149.1908703' 55.9' 2,762' FEL Y= 5,959,100.11 N= 1,429.03 70'17'51.630" 70.2976750' 4,295' FSL SD X= 599,875.92 E= 1,870.10 149'11'28.283" 149.1911897' 56.4' 2,802' FEL Y=5,959,100.09 N= 1,369.02 70'17'51.621" 70.2976725' 4,294' FSL SG X= 599,935.92 E= 1,870.08 149'11'26.533" 149.1907036' j 56'2 2,742' FEL Y= 5,959,100.01 N= 1,279.00 70'17'51.609" 70.2976692' 4,293' FSL SL X= 600,025.94 E= 1,870.00 149°11'23.910" 149.1899750' • 56.3' 2,652' FEL Y=5,959,239.85 N= 1,286.54 70'17'52.985" 70.2980514' 4,433' FSL NK X= 600,018.40 E= 2,009.86 149'11'24.075" 149.1900208' , 56.0' 2,657' FEL NOTES: 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON,Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR [S 0.999911213. 6. ALPHA NAME DESIGNATIONS REFER TO BPX DRILLING SURFACE SLOT NAME AS—BUILT WELL CONDUCTORS. 34i, 40, 42, 50. 51i, 55, 57. 61, 62. 65. 66, 68, 69. 70. 105. 113. 115. 201, 202, 203, 2111° 2121, 213. 2141, 2151. 2161. 217r, 2181. SD, SG, SL, NK QftAm F Robert BARNHART JAC085 ha pA�7 7/i f11 arrAmrrC — — . FRB» WOZ 21 WOA Z—PAD 'assoc M1) FAIL WRD PAD EXPANSION w 7/1/1�Issu€Q FOR INFORMATION 78dJ ;a t' 200. AS—BUILT WELL CONDUCTORSFTICIPSIUME 3 °°3 MO DA IC RE'/ISloly N'r f.nc MO Z w.a. vw Z-113 extension of TD beyond 500' MD Page 1 of 2 Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) Sent: Wednesday, August 31, 2011 3:15 PM To: 'Ciolkosz, Ryan R' Cc: Hubble, Terrie L;Allen, Kenneth W; Honas, Kristopher Subject: RE: Z-113 extension of TD beyond 500' MD (PTD 211-084) Ryan, You have verbal approval to proceed with the additional drilling past permitted TD as shown in the attached directional. Submit a revised PTD as soon as possible per 20 AAC 25.015 (b) (1) . Regards, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Ciolkosz, Ryan R [mailto:Ryan.Ciolkosz@bp.com] Sent: Wednesday,August 31, 2011 12:59 PM To: Schwartz, Guy L(DOA) Cc: Hubble,Terrie L;Allen, Kenneth W; Honas, Kristopher Subject: Z-113 extension of TD beyond 500' MD <<Z-113 (P8) report.pdf» «Z-113 updated Schematic.pdf» Guy, Information learned from the Pilot Hole of Z-113 has triggered an update of the directional plan. The True Vertical Depth(TVD) of the target horizon top was encountered 60' shallower than expected. The target horizon(Kuparuk C-Sand) is gas bearing at these TVD's. The structure is expected to dip down in the direction of the horizontal production section of the well, allowing the lateral to be placed in a target horizon that is dipping into the oil leg. The horizontal directional plan was updated for Z-113 to account for the observed structural picture. The plan represents a base plan. The actual TVD of the lateral section will be geosteered as necessary to maximize sand below the GOC. The early portion of the planned lateral is kept below the GOC. The plan reflects the desire to cross cut the section as the lateral progresses down dip away from the gas. Finally the TD is extended to maximize sand penetration below the gas. Currently we have 7"casing set below the base of the Kuparuk at 9239' MD with a 7"whipstock set at the top of the Kuparuk C4 reservoir. Once we are finished milling the window, we will perform our FIT as per the current Permit. We would like to get your verbal approval to extend TD 1153' MD past the TD stated in the original permit to drill(See attached directional Program) as we will begin drilling the production hole section in the next day or two. We will 8/31/2011 Z-113 extension of TD beyond 500' MD Page 2 of 2 also be submitting a new application for Permit to Drill. Thank you, Ryan Ciolkosz Drilling Engineer BP Exploration Alaska Office: (907)564-5977 Cell: (907)244-4357 8/31/2011 = 41/16 Z-1 3 Proposed LSAFETY NOTES: ***CHROME TB(�** WELEL LHEAD -_-_-_--_ FMC ACTUATOR= Electric KB.ELEV= BF. ELEV= _ I I KOP=Max Angle= 94 9635 20"CONDUCTOR 108' lAaxAngle=---- 35' Datum MD= , 2000' F14-1/2"HES X NP,0=3.813" f Datum ND= g 13-3/8"CSG,68#,L-80 BTC,ID=12.415" H 2510' 'LNI 231 T H13-3/8"X 9-5/8"BKR ZXPN LTP/HGR I 958'MON L-WBIG[88�' H , , GAS LFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 6 3755 2800 DUAM RK 1" Minimum ID =3.813" 5 5783 4200 DUM RK 1" 4 6994 5200 DUM RK 1" 4-1/2" X Nipple I L 3 7711 5800 Dunn RK 1" 2 8243 6200 DUM RK 1" 1 8916 6600 DCR-1 RK 1" 8600' —14-1/2"HES X NIP,ID=3.813" 14-1/2"NDPG SINGLE-SENSOR SUB,ID=x.xxx" H 8630' 1----. I 8660' T'X 4-1/7 HES TNT PKR ZI Z ID=3.870" I 8690' H4-112"HES X MP,El=3.813" I $jI —14112'1$XN D=3813' 4-1/2"TBG,12.6#, 13-Cr,VT,.0152 bpf,®=3.958" 8770' 8764' T'X 5"BKR ZXP PKR&LNR HGR I �w/TIEBACK SLV,ID=xx" 7"BKR WHIPSTOCK H TKC4 MILLED OUT WINDOW(7") 8914'-8926' 17"PBTD 9100' PA�# ?Men .4► (7"CSG,26#,L-80,VT HC,.0383 bpf,ID=6.276" 9239' 1 40 4-1/2"Bkr CMD Siding Sleeve 0 xxxx', xxxx',xxxx',xxxx',and xxxx' .410" 4e, ir OBM Sw el Packers g xxxx', 0 xxxx',and xxxx' if A. 3.5"OBMSw ell Packers @ xxxx' ® 1k,,,,r (4-1/2"Sold LNR, 12.6#,13CR-85 VT,IQ=2.992" —1 14498' DATE REV BY COMMENTS DATE REV BY COMMENTS AURORA UNIT 04/20/11 RRC Proposed Completion WELL: Z-113 PERMIT No: 211-084 API No: 50-029234500000 SEC19TWP11 N RGE12E FSL 4433'FEL 2717' RP Fvnlnratinn 1Alaek21 O N 2 a 1:40m 2 a N z a r4 C)(0- m o ,p o 0 0 o c c 0 o m N 5 = m 5 W A C W A C1 + 42:0 + +m 3 a W Dd. Dd. 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A ,p O 4 o 7 O Z o 11 n O Z s3 `4 z e N s mNA A fi o _..�.....C? o -01 CO3 D =. O W Z O No E 0.'4 �A CD N ` g g CD Of ma' ` O o O 8 O 3 N 1 a A A O 8 V W N A O O O O «< S Scale=1(in):800(ft) N >>> N C.) 43. A A N 0 00 O 0 0 0 O O O O "i"r4...-.......-'......s•-••-..,f------------------"----—------------------——'"----•----——.' !#1 g i. a N c 3 2 L ; 5 a 1 ti o O ws a O W 3 7 oc r ° Fo v0 W A o N 104.. n a A Oo.. w r..ry • o O r O :in8 0 H 0G Z W / W N N O O 66 4 L. N F Ls .14 11 I O CD i Ft r. T o A z co 0 .1 IISC i'g's �d 3 OD s ~' O1 a=te C G A A 'sz O M o 0 2 g D o n 0L. g y IV a V 3 o G � f1 psi U7 m N p N C o a.. o ; ....... o N H o ; N a3N s� z• • ° C, N m LI 3 coco8P oa...� o CS s CD X og IV CD O 6. A N N` Na O o O NJ C.) A A A 4.4 0 00 O �� O O O 1 r -0 b 1. Centre to Centre Separation(10 Win) N N CO !J A A CJI N CO U V V O U O U O U O U O co O U O UCO O U 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 / I I 1 1 1 1 I ( I I I I I I I I I I I I I I 1 1 1 1 1 ! I I I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 1 g-- 1:4 8� N -13 w - N c0 0 O _ CO — al8 O tO 8 (D ro C - a 0. - C 8 5 8 O o CD 8 50 CD CD 7cum� 0i— D N N D 8 - EI _.0D2 z � • N g w W O V M c CO Q — W A 8 - 8 - O v- 0 0 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-113 ' J Project: Prudhoe Bay TVD Reference: Z-113 Actual @ 90.370(Doyon 14) g Reference Site: PB Z Pad MD Reference: Z-113 Actual @ 9037f(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-113 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-113 Database: EDM .16-ANC Prod-WH24P Reference Design: Plan#8 Z-113 Offset ND Reference: Offset Datum Reference Plan#8 Z-113 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refen Interpolation Method: MD Interval 5.00ft Error Model: ISCWSA Depth Range: 8,883.08 to 14,498.44ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,646.41ft Error Surface: Elliptical Conic Survey Tool Program Date 8/29/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.00 624.00 Z-113PB1 Srvy 1 GYD-GC-SS(Z-113PB1 GYD-GC-SS Gyrodata gyro single shots 677.55 2,422.62 Z-113PB1 Srvy 2 MWD+IFR+MS(Z-113P MWD+IFR+MS MWD+ IFR+Multi Station 2,575.61 4,756.12 Z-113PB1 Srvy 3 MWD+IFR+MS(Z-113P MWD+IFR+MS MWD+ IFR+ Multi Station 4,907.21 4,907.21 Z-113PB1 Srvy 4 Inc=Trend(Z-113PB1) INC+TREND Inclinometer+known azi trend 5,004.19 8,883.08 Z-113PB1 Srvy 5 MWD+IFR+MS(Z-113P MWD+IFR+MS MWD+IFR+ Multi Station 8,883.08 8,914.00 Plan#8 Z-113(Z-113) MWD+IFR+MS MWD+ IFR+ Multi Station 8,914.00 9,150.00 Plan#8 Z-113(Z-113) INC+TREND Inclinometer+known azi trend 9,150.00 10,650.00 Plan#8 Z-113(Z-113) MWD MWD-Standard 9,150.00 14,498.14 Plan#8 Z-113(Z-113) MWD+IFR+MS MWD+ IFR+Multi Station 8/29/2011 1:37:11 PM Page 2 of 4 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-113 Project: Prudhoe Bay TVD Reference: Z-113 Actual @ 90.37ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-113 Actual @ 9037f(Doyon 14) Site Error: O.00ft North Reference: True Reference Well: Z-113 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-113 Database: EDM .16-ANC Prod-WH24P Reference Design: Plan#8 Z-113 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB W Pad Plan W-49(1-2)-Plan W-49-Plan#3 W-49 14,497.45 9,860.00 1,148.19 366.41 957.77 Pass-Major Risk W-26-W-26-W-26 Out of range W-26-W-26A-W-26A Out of range PB Z Pad Plan lvi Z-34(SM)v6-Plan Z-34-Plan#8 Z-34 vi Out of range Plan lvi Z-42(NP)v6-Plan Z-42-Plan#5 Z-42 vE Out of range Plan Ivi Z-61 (NF)v6-Plan Z-61 -Plan#4 Z-61 vE Out of range Plan lvi Z-69(NJ)v6-Plan Z-69-Plan#3 Z-69 v6 Out of range Plan Kup Z-105(SN)v6-Plan Z-105-Plan#4 Z-1 Out of range Plan Kup Z-105(SN)v6-Plan Z-105PB1-Plan IP Out of range Plan Kup Z-115(NG)v6-Plan Z-115 w/PH-Plan Out of range Plan Kup Z-115(NG)v6-Plan Z-115 wo/PH-Pla Out of range Plan Kup Z-115(NG)v6-Plan Z-115PB1-Plan# Out of range Plan Kup Z-116(27+15)v6-Plan Z-116-Plan#1 Out of range Plan Kup Z-116(27+15)v6-Plan Z-116PB1 -Plar Out of range Plan Kup Z-118(30.5)v5-Plan Z-118 v5-Plan#: 12,546.09 10,530.00 782.49 309.83 539.12 Pass-Major Risk Plan Sch Z-202(NB)v6-Plan Z-202-Plan#2 Z Out of range Plan Sch Z-211 (SJ)v6-Plan Z-211-Plan#5 Z-2 Out of range Plan Sch Z-212(NO)v6-Plan Z-212-Plan#3 Z-2 Out of range Plan Sch Z-213(NL)v6-Plan Z-213-Plan#3 Z-2 10,415.87 8,515.45 1,548.21 289.58 1,403.89 Pass-Major Risk Plan Sch Z-214(SK)v6-Plan Z-214-Plan#2 Z-2 Out of range Plan Sch Z-215(SH)v6-Plan Z-215-Plan#2 Z-2 14,497.83 9,770.00 1,542.78 375.47 1,395.85 Pass-Major Risk Plan Sch Z-216(NI)v6-Plan Z-216-Plan#2 Z-2' Out of range Plan Sch Z-217(NN)v6-Plan Z-217-Plan#3 Z Out of range Z-113-Z-113PB1 -Z-113PB1 9,096.61 9,100.00 21.16 152.85 -65.76 FAIL-Major Risk Z-19-Z-19Z-19-Z-19-Z-19 Out of range Z-19-Z-19A-Z-19A Out of range Z-20-Z-20-Z-20 Out of range Z-210-Z-210-Z-210 Out of range Z-210-Z-210PB1 -Z-210PB1 Out of range 8/29/2011 1:37:11 PM Page 3 of 4 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Z Pad Well: Z-113 Wellbore: Z-113 Design: Plan #8 Z-113 From Colour To MD From KOP to TD 8883 8900 Scan interval 30 ft Scale 1 : 15 8900 15000 All wells pass major risk 0 52____....... -— 330 - -- , ............. ......--- .-- --- __..- -"' ------ ------::--.. -.., -, . -. •- /;/'/i, •,,\ \. / ,,,,, z --- ...... -- -- 1 N \ N \ /, _ ...... ., ....., ,..\ , \ ' ,r .., ,., 60 . . 22 A.; 7 69 9142 9115 9087 9058 15 cc', , •: 9 r., ,....` 9110 • (v 270 ti.10 90 , . 1 i ; ' T\ , \ , ' ..1..i...........A.. ... \\ \ \\.\ \,‘ 11 s \ /11 '1))))y ) -....y..;,, t ... ,,,,,„.,, ........„ z \\\N,\,,:*,,N:s ,„N.'•,'',,.-„`..,,--...‘N.''''''....,,-::-:-•-,-•-„-..,.,..,--...„, ...,,, ____ -----....--------______t_ _.........._.....-.- ---_--- .../.,, e / •. 120 , " -.74 i - „ - ...... ....--- .......________ ___._....... ..., .,.. _ _ 210 150 52 180 Travelling Cylinder Azimuth(TFO+AZI)[°1 vs Centre to Centre Separation [15 ft/in] Project: Prudhoe Bay Site: PB Z Pad Well: Z-113 Wellbore: Z-113 Design: Plan #8 Z-113 From Colour To MD From KOP to TD 8883 8900 Scan interval 100 ft Scale 1 : 100 8900 15000 All wells pass major risk 0 330 ... ........_.. 30 i i,,,„,,..,,......7"... � - 2 i 300 // /- � _,..,.:''''''1:...1... .__ 1.::: - \ \ i \,: \\\N\\:\ \ ®0 , //::/: //:/// . --...„. -, ,,,.›. \ '..:\\\.\\:,_,,,\\\..\\ \ , . / '7 /:/://' '4:/2/7;//////://////:>/</>/..'7:,,,I,1:1 l.:.:....--.:::::: ::t1.11": ,,,T...,':.:' ,1,,N,:NN\'NN,,,.\\\,x\, , . ; \v „,,,, 7".,, / /7, //, ge, __-_,._ ,,,'"\ , \ \ ' ' 1 f 1 , m• _ 51 4 'V 32 , 86 •1•- 270 -,V OQ 90 . ; 1 I it ' )i ) i 1 1 i i \ \ \ \\\\. •-•____. __,......,- / iiii 1 411_......_ I : \ .\\' , V ii///2/' / / hi/ d ` \\\ \\.- \\\ , \‘‘. - - - ,,,,/,,,, ' , 1.1 -\\ \ '\ '\ '--- :----- '"- /7/0/ 120 ' \\ ,,,,,,,,./.7, .."..............._...._-_:-- -- _ ____:,..„_:--,177„./ , _... r, r 300 210 \ ... 150 350" - .. 180 Travelling Cylinder Azimuth (TFO+AZI)[0]vs Centre to Centre Separation [100 ft/in] TRANSMITTAL LETTER CHECKLIST WELL NAME f$i/ -/J,3 PTD# c›71/074/ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: J .d//0r1/.0G`'/py POOL: _Z0,eP�&.5 ©/G 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 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 M S0oo 0- r -0 ( -o o m r (D -, 13 3.° co co 3 co » O m (7) -5- N 0 N 0 `° N 0 O co 73 O N co N d Ni 2) 3 O 7 n O (p O (D O 0 �_ (D 0 W CO CO CO (J W W W Ca) W Ni Ni Ni Ni Ni Ni Ni Ni Ni Ni CO CO -4 0) 01 A W N.) O n CO CO -4 0) (r A W N — 0 CO CD V 0) U1 A CO N — 0 (0 CO O) (J1 A 0) N — 0 V m CU O (n (n 0 v C N * 0 W CO 0 a, D D. 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N N 07 0 C W Q0 c W i 0 N CO m' A c0 (D 7 l0co 0 O 0. Q a CCD Cr D 7J V O (n co n n co c •7 m Is) f 0 (u c 7 m a a ii o (n < UI 02amjs< 7 (n Z�� -, I O 0 0 O' O II in N N -n o 0 ° Z Z Z Z Z Z -< -< •< -< -< -< -< -< Z -< -< -< Z -< Z -< Z Z Z -< -< -< -< -< -< -< -< -< -< -< -< Z Z m > > > D 0 D CD CD CD CD CD CD CD Cl) > CD CD CD 0 CD > CD > > > CD CD (D (D CD CD CD CD CD CD CD CD > D Cl) 0) (/) Cn Cl) CI) CI) CI) CI) CI) CI) Cl) Cl) Cl) Cl) Cl) Cl) CI) CI) Cl) Cl) Cl) Cl) Cl) Cl) o.• � 0 n(D m O1 mn < 0 0 ✓ F. K 2 K 0 m - 0 Z Co NNn m O 7 C xNJ 2. X p Ox (fl = N 7 00 C r N S v < 7 O N C 7 0 C^ c0) co Z CD ) 0 2 0 DC coQ = co o Cl) o o m O fl, N D_ V O Q N a O • _ n to D .. In 7 (p S Cn 0 d O (an. -° D a o o) = CD 7 .'0 - c �' rn °, m cn to 3 oXI a Cl_ v = (n ° 0 0 0• Cl) iii 0) o n (p co 2 0 v m in C 3 -o N CD V w O to 7 Ni CD N 7 < m CD 2 Ni o CO a n • °- Cl) o 03 to CD 0 0 -0 — - D , co N D a 0_N _ w m (n a Z o n o * v o 0 co 3a m. m v m o m N K o o m N n) " C = c n 7 0 << -' a CU - CO 7 * N < n A- -. 3 V N N n 0 co N CA 0= 0 - N N (J1 00(0 �. ao 0 O "'4!n ? j -0 0 0 N 7 ' a co< _ co co ° o O 3 • N V 7 n CO O 0 C 3 m- < n ° a a 0 0 0 (D 7 N 0 O_ 7' C CD j C O c (D c Or 7 N O n co (• CD (U y Cl) Cl) a0 (D Cl) an N L Li -w E A s, 1i L , i [11 ii;2 ql I Iii\ SEAN PARNELL,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 Ken Allen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Borealis Pool, Z-113 BP Exploration (Alaska), Inc. Permit No: 211-084 Surface Location: 4433' FSL, 2717' FEL, SEC. 19, T11N, R12E, UM Bottomhole Location: 2132' FSL, 3277' FWL, SEC. 17, T11N, R 12E, UM Dear Mr. Allen: Enclosed is the approved application for permit to drill the above referenced development well. 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. Si, e 7 iP1 a i .ioner DATED this ig day of July, 2011. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA , ' ALA OIL AND GAS CONSERVATION COMP ION PERMIT TO DRILL la0 6 2011 �n 20 AAC 25.005 la.Type of work: lb.Proposed Well Class: ®Development Oil 0 Service-Winj 0 Single Zone A3 f fOg i ppRgi9 i lls $bfl 0 Drill 0Redrill 0 Stratira hic Test ❑Development Gas 0Service-Supply ❑Multiple Zone 'Coalbed Qas ��Hydrates 0 Re-Entry ❑ Exploratory0Service-WAG 0Service-Disp fC�5ee Gas 2. Operator Name: 5.Bond: 0 Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska)Inc. Bond No. 6194193 Z-113 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 13267' ND • 18' Prudhoe Bay Field/Borealis 4a. Location of Well(Governmental Section): 7. Property Designation(Lease ,mber): Pool Surface: ADL 02826 4433'FSL,2717'FEL,SEC. 19,T11N,R12E,UM (As Planned) 8. Land Use Permit: 13. Approximate Spud Date: Top of Productive Horizon: �r�is 20, gt�ai,2011 3666'FSL,833'FWL,SEC. 17,T11N, R12E, UM Total Depth: 9.Acres in Property- 14.Distance to Nearest Property: 2132'FSL,3277'FWL,SEC. 17,T11N, R12E, UM 2560 10,600' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Eleva'•n above MSL: 88.3' feet 15.Distance to Nearest Well Open Surface: x- 599958 y-5959240 Zone- ASP4 GL Ele =tion above MSL: 28.5' feet to Same Pool: 4,440' 16.Deviated Wells: Kickoff Depth: 300' feet 17.Maxi, um Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 95 degrees D. nhole: 3652 Surface: 2977 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade _Coupling Leng MD ND MD ND (including stage data) 42" 20" 129.5# X-65 Weld :% Surface Surface 80' 80' 260 sx Arcticset(Approx.) 16" 13-3/8" 68# L-80 BTC 48' Surface Surface 2748' 2233' 1744 sx DeeoCrete.328 sx Class'G' 12-1/4" 9-5/8" 40# L-80 BTC 2285' 2598' 2146' 4883' 3478' 147 sx LiteCrete.770 sx Class'G' 8-3/4" . 7" 26# L-80 Vam •• 9179' Surface Surface 9179' 6754' 178 sx LiteCrete. 181 sx Class'G' 6-1/8" 4-1/2" 12.6# 13Cr85 IBT- , VT 4471' 8795' 6530' 13266' 6718' Uncemented,w/Sliding Sleeves&Swell Packers 19. PRESENT WEL CO ITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth ND('♦ - ugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): Casing Length isf) ize Cement Volume MD ND Conductor/Structural Surface 1 Ali t Intermediate ii, Production `, 1` Liner /y \ �lvlvly! ____ Perforation Depth MD(ft): 0Perforation Depth ND(ft): 20.Attachments: 0 P .perry Plat 0 BOP Sketch 0 Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ® Diverter Sketch 0 Seabed Report 0 Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approv. . Commission Representative: Date: 22. I hereby ce that the foregoing is true and correct. Contact Ryan Ciolkosz,564-5977 Printed =me doaa. ejimki Je-, /1/4.,, Title Engineering Team Leader ---- "1,;"- Jia/- (1.3 C / Prepared By Name/Number Signa 're C----_____ Phone Phone .464. p. Date /4//// Terrie Hubble,564-4628 Commission Use Only Date. /4/// Permi o Drill API Number: Permit Ap oyal WO: See cover letter for Num er: vVArff�"� O 3 50- 9A' �5'ZGVOO Il I other requirements Co.ditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: IF( Other: IZ 35-60 foS� SOP ie-S1— Samples Req'd: ❑Yes iiNo Mud Log Req'd: ❑Yes ErNo 44 zs,6 �p�. A r`n wt� cs f— H2S Measures: 'Yae's 0 No 'irectional Survey Req'd: "Yes 0 No P�HLOII'�/` a,Gce,1„, L./o00 , A/"� 0 - 3(J.) m- g dig- r AOAPPROVED BY THE COMMISSION Date V.13.1/ / ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from the d 'of a• .rove 0 AAC .005(g) Submit In Duplicate ORIGINAL 7e/f,S,4, Well Name: Z-113 Drill and Complete Plan Summary Name Position Office Home Cell Ryan Ciolkosz Drilling Engineer 5977 306-5626 „/ Stephen Crumley Geologist 4078 726-5640 441-1478 Bob Dawson Ops Geologist 5264 345-3359 242-2391 Mike Francis Pad Engineer 4240 644-0534 529-8678 Type of Well (service / producer/ injector): Producer Targets Northing Easting Z TVDss Township Range Section FSL FEL Surface 5959240 599958 Na 11N 12E 19 4433 2716 Pilot Hole Target 5963850 602050 6530 11N 12E 18 3735 546 BHL 5963885 602236 6663 11N 12E 18 3768 359 Horizontal Section Target 5963800 603430 6577 11N 12E 17 3666 4446 Target 5963370 604360 6571 11N 12E 17 3223 3524 Target 5962710 605340 6614 11N 12E 17 2549 2555 BHL 5962300 605900 6630 11N 12E 17 2132 2003 API NUMBER: TBD Rig: Doyon 14 Estimated Start Date: 08/1/2011 Operating Days to complete: 32.8 MD: 13266' TVD: 6718' RT/GL: 28.5'/34.0' RTE: 88.3' Well Design: Grassroots Big Bore Slim Hole, Kuparuk Horizontal Producer 4 1/2" 13Cr tubing with 4 1/2" solid liner with swell packer and slidin sleeve design W;4-ti P,/of- gat_ (7"r 4. p', ) 7./( Objective: Drill and complete new Kuparuk C and A Sand horizontal producing well Directional Plan: Version: SLB P7 (PB1) and P5 KOP: 300' MD, build 1.5/100 Maximum Hole Angle: 95° horizontal section Close Approach Wells: All wells pass major risk criteria. Reference anti-collision report Nearest well within Pool Z-113 is 4440' from closest well (Z-100) Z-113 Permit Application Page 1 Distance to Nearest Property 10,600' to PBU boundary Line: Logging Program: Surface Interval Drilling, MWD, Gyro: GR, RES Open Hole: None Cased Hole: None Intermediate Liner 1 Drilling, MWD: GR, RES, NEU, Azimuthal Density Open Hole: None Cased Hole: None Intermediate Casing Drilling, MWD: GR, RES, NEU, Azmuthal Density, PWD Stethoscope Open Hole: None Cased Hole: USIT Production Interval Drilling, MWD: GR, RES, NEU, Azimuthal Density Caliper Open Hole: None Cased Hole: None Mud Program: 16" Surface Hole: Fresh Water Drilplex Mud Density Funnel Viscosity LSYP Yield Point API FL �H (ppg) (seconds) (2x3-6 rpm) (Ib/100ft2) (mls/30min) Spud to Base 8.8—9.5 60-120 (for reference 30—50 40—80 <_ 8 10.8 Permafrost only. Fluid should be run off LSYP) Base 9.0—9.5 60-120 (for reference 28—45 40—80 <_6 10.8 Permafrost to only. Fluid should be TD run off LSYP) 12 '/4" Intermediate Hole: LSND Interval Density YP PV pH API (ppg) Fluid Loss Shoe to TD 9.0—9.5 25-28 12-18 9— 10 < 8.0 8 3/4" Intermediate Hole: LSND Mud Interval Density YP PV pH API (ppg) Fluid Loss Csg Shoe to CM1 9.2 20-28 12- 18 9-9.5 < 10.0 CM1 to TD 10.7 20-28 15-22 9-9.5 < 6.0 6 1/8" Production Hole: Rheliant Mineral Oil Based Mud IntervalDensity YP PV MLVolts HTHP Fluid Loss Csg Window to TD 10-10.7 15-19 <28 >600 < 5.0 Z-113 Permit Application Page 2 Casing/Tubing Program: Hole Size Csg/ Wt/Ft Grade Connection Length Top Btm Tbg O.D. MD/ND MD/TVD RTE 42" 20" 129.5 X-65 WLD 80' GL 80'/80' 16" 13-3/8" 68 L-80 BTC 2748' GL 2748' /2233' 12-1/4" 9-5/8" 40 L-80 BTC 2285' 2598'/2146' 4883' / 3478' 8-3/4" 7" 26 L-80 Vamtop HC 9179' GL 9179' /6754' 6 'A" 4 '/z" 12.6 13Cr-85 IBT- 4471' 8795' /6530' 13266' /6718' MNamtop Tubing 4 '/2" 12.6 13Cr-85 Vam Top 8795' GL 8795' /6530' Integrity Testing: Test Point Depth Test Type 13-3/8" Surface Casing 20' —50' from surface shoe LOT Test Point Depth Test Type 9 5/8" Intermediate Liner 20' —50' from surface shoe LOT Test Point Depth Test Type 7" Intermediate Casing 20' —50' from window FIT Cement Calculations: Surface Casing: Casing Size 13 s/g" Basis: Lead: Open hole volume +250% excess in permafrost. Port collar used if necessary. Lead TOC: Surface Tail: 40% excess + 80' shoe track. Tail TOC: 500' MD above the casing shoe ✓ Total Cement Volume: Lead 580 bbl/ 3261 fe/ 1744 sks of DeepCrete at 11.0 ppg and 1.87 cf/sk Tail 68 bbl /380 fti/328 sks of Class 'G' at 15.8 ppg and 1.16 cf/sk Intermediate Liner: Casing Size 9 5/8" Basis: Lead: Open hole volume with 40% excess. Lead TOC: 200' above liner top Tail: Open hole volume 40% excess + 80' shoe track. Tail TOC: 1971' MD above the liner shoe Total Cement Volume: Lead 49 bbl /273 ft'/ 14 sks of LiteCRETE at 11 ppg and 1.86 cf/sk Tail 160 bbl /893 ft'/770 sks of Class 'G' at 15.8 ppg and 1.16 cf/sk Intermediate Casing: Casing Size 7" Basis: Lead: Open hole volume with 30% excess. Lead TOC: 772' MD below drilling liner sho (5655' MD) Tail: Open hole volume with 30% excess + 80' shoe track volume, ID 6.276" Tail TOC: 8180' MD (1000' MD above shoe) Total Cement Volume: Lead 88 bbl /491 ft'/ 178 sks of LiteCRETE at 11.5 ppg and 2.76 cf/sk ✓ Tail 38 bbl /211 ft'/ 181 sks of Class `G' at 15.8 ppg and 1.17 cf/sk Z-113 Permit Application Page 3 Formation Markers: (8) Formation Top and Estimated Pore Pressure Predictions NOTE: All standard formation tops are required from GR tie-in point above proposed KOP to TD for sidetracks NOTE: All standard formation tops are required from surface to TD for all new wells NOTE: Formation tops and pressures are required for all fault blocks penetrated and along laterals for horizontal and high-angle wells Tops Based on Well Z-113pb1_wp7 Plan#: Estimated Estimated Pore Depth Hydrocarbon Pressure Formatio Pore Formation Uncertainty Bearing Uncertainty n Top(TVDss) (+/-TVD ft) (Yes/No) (EM1Mppg) MW+/- PIN) G1 -250 +/-30' no SV6 -1032 +/-30' no 8.4 -0.05/+0.05 EOCU -1621 +/-30' no 8.4 -0.05/+0.50 +/-300'M.D.-see fault section for Fault#1 -Highland State -1680 details. SV5(top faulted out) no SV4 -1708 +/-50' Potential Hydrates 8.4 -0.05/+0.05 where below PF BPRF -1857 +/-50' no 8.4 -0.05/+0.50 SV3 -2158 +/-50' Hydrates 8.7 -0.35/+0.20 SV2 -2306 +/-50' Hydrates 8.7 -0.35/+0.20 SV1 -2661 +/-50' Hydrates 8.7 -0.35/+0.20 UG4 -3048 +/-50' Hydr tes/Gas Free 8.7 -0.35/+0.10 UG4A -3111 +/-50' Hydr Gas Free 8.7 -0.35/+0.10 UG3 -3448 +/-50' Poss. Heavy Oil 8.7 -0.35/+0.10 UG1 -3974 +/-50' Poss. Heavy Oil 8.7 -0.35/+0.10 UG_Ma -4240 +/-50' Heavy Oil 8.7 -0.35/+0.10 UG_Mb1 -4293 +/-50' Heavy Oil 8.7 -0.35/+0.10 UG_Mb2 -4349 +/-50' Heavy Oil 8.7 -0.35/+0.10 UG_Mc -4420 +/-50' Heavy Oil 8.7 -0.35/+0.10 SB Na -4487 +/-50' no 8.7 -0.30/+0.00 SB Nb -4512 +/-50' wet? 8.7 -0.30/+0.00 SB OA -4652 +/-50' wet? 8.7 -0.30/+0.00 SB_OBa -4714 +/-50' Oil 8.7 -0.30/+0.00 SB_OBb -4744 +/-50' wet? 8.7 -0.30/+0.00 SB_OBc -4796 +/-50' Oil 8.7 -0.30/+0.00 SB_OBd -4853 +/-50' Oil 8.7 -0.30/+0.00 SB_OBe -4917 +/-50' Oil 8.7 -0.30/+0.00 SB_OBf -4957 +/-50' no 8.7 -0.30/+0.00 SB OBf Base -5007 +1-50' no 8.7 -0.25/+0.00 +/- 150'M.D.-see fault section for Fault#2-Zpad fault -5160 details. CM1 -5834 +/-50' no 9.4 -0.00/+0.80 Fault#3 6080 +/-150'M.D. -see fault section for details. TLBK -6125 +/-50' no 9.4 -0.00/+1.30 THRZ -6290 +/-50' no 9.4 -0.00/+0.90 Z-113 Permit Application Page 4 TKLB -6506 +/-50' no 9.4 -0.00/+0.90 TKC4 -6526 +/-50' yes Oil 9.6 -3.20/+0.80 TKC1 -6536 +/-50' yes Oil 9.6 -3.20/+0.80 TKB/LCU -6558 +/-50' no 9.6 -1.15/+0.80 TKA6 -6570 +/-50' no 9.6 -1.15/+0.81 TKA5 -6581 +/-50' yes Oil 9.6 -1.15/+0.82 TKA4 -6606 +/-50' no 9.6 -1.15/+0.40 TMLV -6633 +/-50' no 9.6 -0.00/+0.70 OWC 6655 Z-113 Permit Application Page 5 • Well Control: 16" hole will be drilled with diverter. The 12-1/4", 8 '/" intermediate hole and 6 '/8" production hole sections will use well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Annular preventer will be tested to 2500 psi. Rams will be tested to 3500 psi. The BOP test frequency will be conducted on a 14 day frequency, with a function test every 7 days. Except for significant operational issues that may effect well integrity or pose safety concerns, an extension to the 14 day BOP test period should not be requested. Diverter, BOPE and drilling fluid system schematics of Doyon 14 are attached to this permit to drill. 16" Surface 13-3/8" Casing BOPS A tested diverter s r�stem per AOGCC regulations Maximum Anticipated BHP 1033 psi @ 2,223 ND, 8.9 ppg EMW Maximum Surface Pressure 810 psi (0.10 psi/ftgas gradient to surface) Planned BOP test pressure Function Test 13-3/8"Casing Test 3,500 psi surface pressure Integrity Test- 12.25" Hole LOT after drilling 20-50' of new hole Kick Tolerance 122 bbls with a 11 ppg LOT _12-1/4" Intermediate 1 9-5/8" Liner BOPE Hydril, 13-%", 5000 psi Maximum Anticipated BHP 1609 psi @ 3,478' TVD, 8.9 ppg EMW Maximum Surface Pressure 1,262 psi (.10 psi/ft gas gradient to surface) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi 9-5/8" Liner Test 3,500 psi surface pressure Integrity Test—8-3/4" Hole LOT after —50' of new hole Kick Tolerance 25 bbls with a 13 ppg LOT 8-3/4" Intermediate 7" C • asing BOPE Hydril, 13-%", 5000 psi Maximum Anticipated BHP 3,652 psi @ 6,754' ND, 10.4 ppg EMW Maximum Surface Pressure 2,977 psi (0.10 psi/ft gas gradient to surface) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi 7" Casing Test 3,500 psi surface pressure Integrity Test—6-1/8" Hole FIT after drilling 20'—50' of new hole Kick Tolerance Infinite with a 11.0 ppb FIT Planned Completion Fluids 10-10.7__pg_Corrosion Inhibited Brine/6.8 ppg Diesel Disposal: • No annular disposal in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for disposal. Haul all Class I wastes to Pad 3 for disposal. Variance Request: / • To avoid the risk of plugging the flow line with large rocks and wood encountered while drilling surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. After drilling past the larger rocks and wood sections, the flow paddle will be put back in the flow line. Z-113 Permit Application Page 6 Z-113 Drill and Complete Procedure Summary Pre-Rig Work: 1. Install Cellar Box and set 20" Conductor to+/- 108'. 2. Weld an FMC landing ring for the FMC Gen 5 Big Bore wellhead on the conductor. 3. If necessary, level the pad and prepare location for rig move. Shut in nearby wells, bleed off process lines, and remove well houses as necessary. Rig Operations: 1. MIRU. Nipple up diverter spool and function test diverter. 2. Prepare pits with Drilplex Mud and PU DP as required and stand back in derrick. , 3. MU 16" drilling assembly with MWD/GR and directionally drill surface hole to SV4 below permafrost. If needed, perform wiper trip at the base of permafrost. CBU and condition hole as necessary, then POH for casing. 4. Run and cement 13-3/8" surface casing,A TAM port collar may be run at 500' as a contingency. 5. ND diverter and NU casing / tubing head. NU BOPE consisting of: (from top to bottom) Annular preventer, 3-1/2" x 6" VBR, blind shears, mud cross and 2-7/8" x 5" VBR. Test to 3500psi. Give the AOGCC 24 hrs notice prior to testing. 6. Make up 12-1/4" drilling BHA and RIH to float collar. Pressure test 13-5/8" casing to 3500 psi for 30 minutes. Drill out shoe track and displace well to 9.2 ppg LSND drilling fluid. Drill 20' of new formation and perform LOT. 7. Drill to 12-1/4" hole TD to bottom of UG4 (below free gas zone). CBU and condition hole as necessary, then POH for liner. Change to 9-%" casing rams and test. 8. Run and cement 9-%" intermediate liner with 150' overlap. Set liner hanger and liner top packer. POOH. Change out from 9-%" rams to 3-1/2" x 5"VBR 9. MU 8-3/4" drilling assembly and RIH to 9-%" float collar. Pressure test casing to 3500 psi for 30 min. Drill shoe track and 20-50' of new formation below 9-%" shoe and perform LOT. 10. Drill ahead to —200ft above the CM1 and weight up to 10.7 ppg ensure mud is conditioned and properly weighted for shale stability and reservoir pressure, and perform short trip as needed. Ensure pre-reservoir meeting is held highlighting kick tolerance and detection prior to entering the HRZ and Kuparuk. 7-p o4 Ridd- Kola- ye,,_ 7.re.et 11. Drill ahead to target TD, (below top TMLV). Circulate and condition fluid. Back-ream/MAD Pass as required, then POH to run casing. 12. Change to 7" rams and test prior to running casing_. 13. Run 7" intermediate casing and cement in 1 stage. Displace with mud. Bump plug and ensure that float holds. Pressure test casing to 3500 psi for 30 minutes. Change from 7" casing rams to 3-1/2" x 6" rams. 14. MU and RIH w/ 7" Whipstock assembly. Set whipstock such that window top is at the top of the Kuparuk C4. 15. Displace the casing with Rheliant OBM. Mill Window and drill 20-50' of new formation. Perform FIT test. POOH and LD milling assembly. 16. MU 6-W build section BHA. RIH and build to horizontal. POOH.. 17. MU 6-%s" drilling assembly. Drill ahead in Kuparuk sands to TD. Circulate and condition mud. MAD • - Pass/ Backream as required and POH for 4-1/2" liner run. Lay down excess DP as necessary. 18. Run the 4-'/z' solid liner with swell packers and sliding sleeves. There will be 150' of overlap into the 7" intermediate casing. Set liner hanger and liner top packer as per BOT Rep and test LTP to 1500 psi for 10 minutes. Release from liner and displace well to brine. POOH and LD Drill Pipe. 19. Run 4-'/2" chrome completion w/SLB pressure gauge and land tubing hanger. RILDS. 20. Drop RHC ball and rod on rollers and set packer and test tubing to 3,500 psi and annulus to 3,500 psi. Shear the DCR-1 valve and pump both ways to confirm circulation ability. 21. Install and test TWC. Nipple down the BOPE. Nipple up and test double master valves to 5000 psi. RU DSM and pull TWC. Z-113 Permit Application Page 7 22. Freeze protect the well to 2000' TVD by first pumping corrosion inhibited brine down the IA with rig ' pumps followed by diesel down IA w/ Hot Oil truck, taking clean brine returns to surface. Allow diesel to u-tube into tubing. 23. Install BPV in tubing hanger. Install all annulus valves and secure the well. Ensure that T/IA/OA are protected with two barriers. RDMO. Post-Rig Work: 1. Install tree with electric valve. Pull BPV. 2. R/U Slickline and pull ball and rod / RHC. ' 3. Replace the DCK shear valve with a dummy GLV.• 4. Pull dummy valves and replace with gas lift valves. Pull VR Plugs. 5. Install wellhouses and flowlines. 6. Pump RG2401 (Blue-Goo) on top of surface casing cement. 7. Flow back to test separator Z-113 Permit Application Page 8 Drilling Critical Issues POST THIS NOTICE IN THE DOGHOUSE I. Well Control I Reservoir Pressures: A. The Schrader Bluff reservoir could be pressured as high as 8.7 ppg EMW. The Lower Brookian (TLBK) had to be drilled with a 10.7 ppg due to over pressure on Z-08. The Kuparuk sands may be pressured as high as 10.4 ppg EMW due to pressure uncertainty in this fault block. II. Hydrates and Shallow gas: A. Free gas and/or gas hydrates may be present in the SV and Ugnu intervals while drilling the 12.25" hole below the Permafrost base. Use standard operating procedures for hydrates, if encountered. III. Running Gravels: A. Unconsolidated sand, gravel, & cobbles and thawing permafrost could impede well angle build and casing running through permafrost. Keep moderate to low build angles until out of permafrost section. Keep flow rates low. Hazards include wood and cobbles, running gravels, lost circulation, and tight hole problems while drilling and running casing. IV. Faults Formation Where TVDSS Throw Encounter Fault MD Intersect Intersect Est. Throw Direction Uncertainty Fault#1 -SV5 1950 1680 150' SW +/- 300' M.D. Fault#2 -Z-pad fault- CM2 7050 5160 150' West +/- 150' M.D. Fault#3 -CMI 8200 6080 25 SW +/- 150' M.D. Fault#4- Horizontal section 10420 6580 15 SW +/- 150' M.D V. Lost Circulation / Breathing: A. Fault#1 - Highland state fault SV5 is crossing very shallow in the section. This well path is very similar to Z-19A although no fault crossing was picked at this shallow depth suggesting that although the seismic shows a fault crossing it may be a tip fracture zone instead of a true fault at this shallow depth. F#2 is the z-pad fault that is clearly seen in the seismic. Previous wells that have crossed this fault have not had major losses. F#3 is a small fault where we cross on the western most edge. It could be a fracture zone instead of a true crossing. F#4 is in the horizontal section dipping to the SW and would cross it in the fracture zone on the southern most edge. B. Although not near the Z-113 target, several Z-pad well have experienced severe lost circulation in Kuparuk Zones 3 &4. Follow LCM decision tree; reduce mud weight slightly if possible C. Breathing in the Colville has occurred on other pads in the past, but is not considered a major risk for Z-pad. Maintain ECD hardlines and good tripping practices to minimize risk of breaking down the formations. VI. Kick Tolerance/ Integrity Testing: A. Kick tolerance for 8-3/4" intermediate is only 25 bbls with a 13 ppg LOT test. It will be important to place casing shoe in 20-30 TVD thick shale at the base of the UG4A and use good cementing practices to ensure competent shoe Z-113 Permit Application Page 9 VII. Heavy Oil A. Heavy oil is expected in the UG4A through UG_Mc intervals which could result in plugging of shaker screens. Follow established operating practices for drilling in heavy oil zones. VIII. Broaching A. Monitor adjacent wells for broaching while drilling surface hole. VIII. Stuck Pipe A. Possibility for unstable clays in the Kuparuk B. Anticipate Kuparuk B in target area. Maintain proper mud system and try to minimize Kuparuk B penetration IX. Hydrogen Sulfide A. All Z Pad gas lift wells are expected to have H2S levels in the 20 to 120 ppm range; result of PBU gas lift gas. This site should be treated as an H2S site with all the required precautions. Date of Well Name H2S Level Reading #1 Closest SHL Well H2S Level Z-100 118 ppm 6/12/2010 #2 Closest SHL Well H2S Level Z-20 30 ppm 7/20/2010 #1 Closest BHL Well H2S Level Z-100 118 ppm 6/12/2010 #2 Closest BHL Well H2S Level V-122 16 ppm 7/6/2010 Max. Recorded H2S on Pad/Facility Z-100 120 ppm 2/7/2010 Other Relevant I-12S Data (H2S alarms from rigs,etc.) CONSULT THE Z PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION Z-113 Permit Application Page 10 TREE= 4-1/18" WELLHEAD= FMC S Y NOTES: ***CHROME TBG*** ACTUATOR= Z 1 �� 3 Proposed Electric � KB.ELEV BF. ELEVT /I I KOP 300 Max Angle= 94-6-9-6 ' 20"CONDUCTOR }— 108' TBD 1—9-5/8"TAM PORT COLLAR Datum MD= ____ __ ._ u_.._ _____ — Datum TVD= g I 2000' ' 4-1/2" HES X NIP, ID=3.813" 13-318"CSG,68#, L-80 BTC, ID=12.415" — 2748' A AN 2598' I—13-3/8"X 9-5/8"BKR ZXPN LTP/HGR 9-5/8"LNR,40#,L-80 BTC, ID=8.835" H 4883' 1--441 , GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3755 2800 DUM RK 1" Minimum ID = 3.813" 5 5783 4200 DUM RK 1" 4 6994 5200 DUM RK 1" 4-1/2" X Nipple 3 7711 5800 DUM RK 1" 2 8243 6200 DUM RK 1" 1 8916 6600 DCR-1 RK 1" 8730' —14-1/2"HES X NIP,ID=3.813" 4-1/2"NDPG SINGLE-SENSOR SUB,ID=x.xxx" H xxxx' .--• ZI 8750' -I 7"X 4-1/2"HES TNT PKR ID=3.870" ll I I , 8770' —14-1/2"HES X NIP,ID=3.813" ,� , 8790' —14-1/2"HES X NIP,ID=3.813" 11 4-112"TBG,12.6#, 13-Cr,VT, .0152 bpf, ID=3.958"H 8800' 6'1128795' 7"X 5"BKR ZXP PKR&LNR HGR �w/TIEBACKSLV, ID=xx" 7"BKR WHIPSTOCK H TKC4 MILLED OUT WINDOW (7") 8945'-8958' 4, if% 7"PBTD H 9100' MAWAVAV A► 4, 7"CSG,26#, L-80,VT HC,.0383 bpf, ID=6.276" H 9180' i/ PERFORATION SUMMARY REF LOG: LWD ON %.404111r /t4r ANGLE AT TOP PERF: 4e---- i Note: Refer to Production DB for historical perf data 4-1/2"Bkr CMD Sliding Sleeve @ xxxx', SIZE SPF INTERVAL Opn/Sqz DATE xxxx',xxxx',xxxx',and xxxx' OBM Sw ell Packers @ xxxx', 4, irr xxxx',and xxxx' .V it 4-1/2"Solid LNR, 12.6#, L-80 IBT-M, ID=2.992" —I 13266' DATE REV BY COMMENTS DATE REV BY COMMENTS AURORA UNIT 04120111 GJS Proposed Completion WELL: Z-113 PERMIT No: AR No: SEC TWP RGE NSL FEL • BP Exploration(Alaska) 01= 0°,,N M U1p N C10p N 0 NS,-W 0 ^N-O N e 0 W^' ' O N CO CO C) M CU) W U)100)0 CO W W 10 W 00NU)m N,-00L0 000)0N 0001004 000(,p NU,0 V O1-1-f0 N co M' p NcD O Mt- ?OO?_ • M 00000 000)000 00 000 0 ,-W'-N NNNNN CO MCM)1q U) a) W 0 0 0 0 0 0 0 0 0 0 00000 .-,-.-,-N 0 0 0 0 00000 00000 0 00 W 0O 00000 O00000 OCo M M00000 OW 0O01.0UOO U(OUUO U)UU0D M CL 2 CO O= O OW N M W W 0M O Mon-00 0 0,-W 0U) N0)NW W 010000 O C.. 00^NO 01-4000 0 W N NO W a0 W r•W O eo e M QQe m^ Q 22666s-co NOW.-4 Noo0v00.-40NOtD OWm,-40 mt) 0uC;C'a� N40 NNNNN NNNMM MC')QQ0 )0 Nf0 NN- Nmm()0) o)W O 000)00 00000 00000 00 0q 0)00 0 M 00000 0 2 W W h N W WNW W N W U)N W W U)W W W U) W U)U)U)W WNW W b N UI0OOItOUO ° 01000101 hb 0OOhUUU) U0U0UI)UUUWWWU0 l9N UCtolo N 0 6 X 0000- ,-0 W NO N00MN W 000U) W U)U)N U) C)M W Q0) C.• 00 NO U)W CM U)UO CDDDO O NMMe QU)U)U)10 NN-N00 • O C 0000.- NNNMM MC'IMMM 4'0444 44444 44444 e G u E C6 O • 03 N' Q O p 0 0 00000 00000 00000 00000 00000 J O U)U)OO O O O O 00000 00000 Opp00 00000 Co Z 0^.M M MCOCI M Mf.i MMM MM6606 MC.)0)MM 010000 L CD ONS BE IL: ggggg sss== sizmzs cemwmct cectixCm rrwoow — ,,,,,u), N W N W M W N M -C,1031,-1, 0 00 W W N 0 2=__ f D[O W N M 0 W 1 A O M C 0 N N N N6,-.-,- y NN-.,-:46 NCV N N 0 0 60666 O 000 0 666 C0000 O C d J 0 J J d °2 = w w N Z 22 = 3 Z 0 0 0 W M W W N O W M W W 0 M O O W (0,,,,W.- W N 00 0 CO ,- 0000N ON�N�OUI U)000 D U)N°Om OCOOQN Ma01�o-U) ; 88 ,388 ~ w 0000 N N�M C)i v N: M0 G O N O N 6Ow 606001: 06066,: M O a s C o .-NMQ WIC W ON `NONC W W 0)00 CO W W 000 o ff a • CO E,—.c a N N N N N N N M mm,,, E0 _,1-==. ;i• -Nn_, , m J0 ..oO oi1°g2z" E OND O CSM O N M OMf. 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V tD a a 0)a a 0 00 y 0 UDUDUD UD COUDUDa as a as 0) :V) 0 a J O 0) Of O N 'en V mU v 0 0 z a m a rn EE vim o o03 ¢¢ a ci V W IS-I- II--N II--II--)-- FY-l---Z Oi. ` bp Schlumberger V1.ELL FIELD STRUCTURE Z-113PB1 (P7) Prudhoe Bay Unit-WOA Z-PAD Myr.Parameters Surface Location 59D27 Alaska StMo P.m.Zone Oa US Fat Miscollanocus Akorlel BGGM 2010 DO 60920. Date July Oa 2011 Lot N 70 17 52 995 Nortlang 59592,10 0311US Sod Coot.0 76211100. Slat Z.N11 11/0 504 Rotary Tabla(88 30 above MSL) M.9000- 24264' FS 57639 0nT Lon W12011 25 821 Easang 59995350 RUS Solo Fact 0 99991135 Plan 2.113P01(107) Sr,DateApnl 20.2011 p; HO 0 1000 2000 3000 4000 5000 RTE 0 0 KOP Bid 1.5/100 Cry 3/100 1000 1000 Fault 2000 2000 •••••I•1•••••••••••••••••••••en••••••• •••••••i••••••••••••••••••11•••••••••••••••••••••4••••••••••••••••••••4••••••••••••••• • • • • • • • • • • Z-11i Nudge 7gt 3000 • 3000 / 0 End Cor 0 Cry 41100 End Cry CO (/) 40004000 0 - - - - - - - - - - - - - - - - - - - - - - . - =2222:222.2 22222 .2 2 - - = - - - -••• - - = - 4 - - - . 5000 lP 5000 Fault 2 - 6000 6000 End Cry Z-113PB1 Tgt 7"Casing IHIP1111411111111111111IIIIIIIIIMIIME11111112111111111111111111111111111111111111111IPIPIHIIIIIMININIIMMIIIIIIIIIii • " Erma -• 7000 2.1+3P131-(P.) 7000 0 1000 2000 3000 4000 5000 Vertical Section(ft)Azim=28.6293°,Scale=1(in):1000(ft) Origin=0 N/-S,0 E/-V by 111::::1 Schlumberger WELL Z-113PB1 (P7) FlE D Prudhoe Bay Unit-WOA STRl1CTURE Z-PAD MpreK Paramebn Surface LooSon 98027 Alaska SM.PW..Zona 04.05 Feet Mwalbrnous BIo*N'. 80GM2010 Dq: 80935• Dab: JMy04.2011 Let N 701752.985 Norllang 5959240 DJ 5115 5,4 Conn 078211140• SW: Z.NI TVD Ref: Rotary Taba(8838 above 1851) Alp Dao: 21.2811 FS'. 578094,7 Lon: W 1491125.821 Ea.Bp: 599959508115 Scab 1.480.999E1135 Plan: Z-115881(P7) Der Data:*25120.2011 0 600 1200 1800 2400 3000 4800 t 4800 -4 • , -113PB1(P7) 74 Casing Z-113PB1 Tgt End Cry 4200 4200 Fault 2 N A4 *4 cry 4/100 _. 4 1...y/f 3600 3600 piii- 7. 3000 8 4 End C s 3000Cry A t// A cry at oo f/ A 9zsir c . .P End Cry 0 Z-113 Nudge Tgt CO Civ 4/100 c 2400 2400 II 0) co co to V v 1800 1800 1200 131ie Cs. 1200 p End Cry Fault 1 600 o- d 600 Cry 3/100 <OP Bld 1.5/100 0 0 RTE 0 600 1200 1800 2400 3000 «< W Scale=1(in):600(ft) E >>> 0 _ —$ z m Mr'Cls =0 N C1:1 o_' N LaYN4t -oNccc —o `m m ca (13 _ aaaaa 8 U _ C — O •O w j_o• OI Q- -0 o 0 p \ —_ S ci'• <p N N. N N = O W N O itcn CL a \\ Z ? $ cO \ 7- N N NC_ c - — O a a _ cv o .c oo Q Cl.) _ o N _o N > O p O @ > ,� m co p N > 0 N N N - N N N . ,_S co . > \ z z- 8 co c> 0 (V N N N N _ S N N Y D a. r it _ 0 —o ct —8 IN _ N N * —S * 7r 0 A p —g 1111 -i L_ - N Z N S N N Np =O Y2 C • A 22 • L C_ L 1 ' " 1 1 1 1 1 IT I ' ' 1 ' ' 1 ' 1 1 I " 1 " I " " 1 ' O O u, O LC'. O �'+ G O 4A O ,n co c,7 S to C 7 c.") n :v N I (uoi oL.) uogeiedeg ailuao of ailuao I I • BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Kup Z-113(NH)v6 Project: Prudhoe Bay ND Reference: Z-113PB1 (P4)@ 88.30ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-113PB1 (P4)@ 88.30ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Plan Kup Z-113(NH)v6 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-113PB1 Database: EDM .16-ANC Prod-WH24P Reference Design: Plan#7 Z-113PB1 Offset ND Reference: Offset Datum Reference Plan#7 Z-113PB1 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refers Interpolation Method: MD Interval 5.00ft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,114.56ft Error Surface: Elliptical Conic Survey Tool Program Date 4/20/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 34.30 500.00 Plan#7 Z-113PB1 (Plan Z-113PB1) GYD-GC-SS Gyrodata gyro single shots 500.00 1,500.00 Plan#7 Z-113PB1 (Plan Z-113PB1) MWD MWD-Standard 500.00 2,748.77 Plan#7 Z-113PB1 (Plan Z-113PB1) MWD+IFR+MS MWD+IFR+ Multi Station 2,748.77 3,750.00 Plan#7 Z-113PB1 (Plan Z-113PB1) MWD MWD-Standard 2,748.77 4,883.23 Plan#7 Z-113PB1 (Plan Z-113PB1) MWD+IFR+MS MWD+IFR+ Multi Station 4,883.23 5,890.00 Plan#7 Z-113PB1 (Plan Z-113PB1) MWD MWD-Standard 4,883.23 9,179.89 Plan#7 Z-113PB1 (Plan Z-113PB1) MWD+IFR+MS MWD+IFR+ Multi Station 4/21/2011 8:56:55AM Page 2 of 4 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Kup Z-113(NH)v6 Project: Prudhoe Bay TVD Reference: Z-113PB1 (P4)@ 88.30ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-113PB1 (P4)@ 88.30ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Plan Kup Z-113(NH)v6 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-113PB1 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#7 Z-113PB1 Offset ND Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB Z Pad Plan Ivi Z-34(SM)v6-Plan Z-34-Z-34 Plan#7 vi 427.29 430.00 219.12 8.08 211.04 Pass-Major Risk Plan Ivi Z-40(SI)v6-Plan Z-40-Plan#10 Z-40 v 339.53 335.00 142.15 6.22 135.93 Pass-Major Risk Plan Ivi Z-42(NP)v6-Plan Z-42-Plan#5 Z-42 vE 481.87 470.00 221.41 8.97 212.44 Pass-Major Risk Plan Ivi Z-50(SA)v6-Plan Z-50-Plan#7 Z-50 vE 376.46 380.00 190.12 7.19 182.93 Pass-Major Risk Plan lvi Z-51 (NA)v6-Plan lvi Z-Z51 -Plan#2 Z-E 155.79 150.00 120.99 2.88 118.11 Pass-Major Risk Plan Ivi Z-55(SB)v6-Plan Z-55-Plan#4 Z-55 vE 371.78 375.00 180.29 7.11 173.18 Pass-Major Risk Plan Ivi Z-57(ND)v6-Plan Z-57-Plan#4 Z-57 of 434.44 430.00 75.98 8.26 67.72 Pass-Major Risk Plan Ivi Z-61 (NF)v6-Plan Z-61 -Plan#4 Z-61 vE 430.25 425.00 30.94 8.18 22.76 Pass-Major Risk Plan Ivi Z-62(NC)v6-Plan Z-62-Plan#2 Z-62 Nil 379.73 375.00 90.82 6.55 84.27 Pass-Major Risk Plan Ivi Z-65(SE)v6-Plan Z-65-Plan#9 Z-65 vE 367.36 370.00 150.15 7.02 143.13 Pass-Major Risk Plan Ivi Z-66(SC)v6-Plan Z-66-Plan#12 Z-66 357.50 360.00 171.07 6.83 164.24 Pass-Major Risk Plan Ivi Z-69(NJ)v6-Plan Z-69-Plan#3 Z-69 v6 641.34 635.00 41.35 11.49 29.86 Pass-Major Risk Plan Ivi Z-70(SF)v6-Plan Z-70-Plan#4 Z-70 vE 339.31 335.00 145.32 6.48 138.84 Pass-Major Risk Plan Kup Z-105(SN)v6-Plan Z-105-Plan#4 Z-1 472.07 470.00 231.30 8.84 222.48 Pass-Major Risk Plan Kup Z-105(SN)v6-Plan Z-105PB1-Plan# 486.63 485.00 231.57 9.26 222.32 Pass-Major Risk Plan Kup Z-115(NG)v6-Plan Z-115-Plan#9 Z- 499.51 500.00 16.45 9.49 6.96 Pass-Major Risk Plan Kup Z-115(NG)v6-Plan Z-115PB1 -Plan# 499.51 500.00 16.45 9.49 6.96 Pass-Major Risk Plan Sch Z-201 (NM)v6-Plan Z-201-Plan#6 Z-: 911.66 900.00 159.79 16.07 143.72 Pass-Major Risk Plan Sch Z-202(NB)v6-Plan Z-202-Plan#2 Z-2 315.63 310.00 105.89 6.08 99.82 Pass-Major Risk Plan Sch Z-211 (SJ)v6-Plan Z-211-Plan#5 Z-2 388.08 385.00 145.80 7.40 138.40 Pass-Major Risk Plan Sch Z-212(NO)v6-Plan Z-212-Plan#3 Z-2 853.13 825.00 208.10 14.90 193.37 Pass-Major Risk Plan Sch Z-213(NL)v6-Plan Z-213-Plan#3 Z-2 569.29 560.00 76.72 10.51 66.22 Pass-Major Risk Plan Sch Z-214(SK)v6-Plan Z-214-Plan#2 Z-2 426.42 425.00 150.50 8.07 142.43 Pass-Major Risk Plan Sch Z-215(SH)v6-Plan Z-215-Plan#2 Z-2 495.77 500.00 141.50 9.23 132.27 Pass-Major Risk Plan Sch Z-216(NI)v6-Plan Z-216-Plan#2 Z-2 597.41 590.00 31.67 10.93 20.74 Pass-Major Risk Plan Sch Z-217(NN)v6-Plan Z-217-Plan#3 Z 1,496.88 1,450.00 145.03 36.24 109.80 Pass-Major Risk Plan Sch Z-218(NE)v6-Plan Z-218-Plan#2 Z-2 420.13 415.00 45.75 7.96 37.80 Pass-Major Risk Plan Z-114-Plan Z-114-Plan#11 Z-114 7,600.00 8,745.00 738.61 165.47 581.06 Pass-Major Risk Plan Z-116-Plan Z-116-Plan#9 Z-116 3,371.65 3,600.00 273.46 112.82 190.48 Pass-Major Risk Plan Z-116-Plan Z-116PB1 -Plan#7 Z-116PB1 3,371.65 3,600.00 273.46 112.81 190.48 Pass-Major Risk Z-19-Z-19-Z-19 463.99 475.00 245.24 10.82 234.42 Pass-Major Risk Z-19-Z-19A-Z-19A 467.90 475.00 245.36 10.94 234.42 Pass-Major Risk Z-20-Plan Z-20A-Plan#7 357.78 355.00 220.13 6.56 213.57 Pass-Major Risk Z-20-Z-20-Z-20 358.94 365.00 220.15 6.58 213.57 Pass-Major Risk Z-210-Z-210-Z-210 2,227.94 2,680.00 311.70 55.07 273.97 Pass-Major Risk Z-210-Z-210PB1 -Z-210PB1 2,227.94 2,680.00 311.70 55.07 273.97 Pass-Major Risk 4/21/2011 8:56:55AM Page 3 of 4 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Z Pad Well: Plan Kup Z-113(NH) v6 Wellbore: Plan Z-113PB1 From Colour To MD Design: Plan #7 Z-113PB1 34 ! 500 500 ` 1000 E to 1000 -- 1500 Scan interrval1UOTI 1500 — 2000 Scale 1 : 50 2000 -- 3000 All wells pass major risko 3000 5000 175 5000 7000 7000 9200 330 e',#,A 0 +��:: I' 150 144- 11,, 15P81 v6 - - - _ 111 12 . 303 ��' 2203 /� �` �sr, / �' 10o / Plan Sell 2-218(NI)ve 300 \ � � 80 ��'�� ! 22 ��y ,�� 75 21'5 _ y. 2040 / 1596 t 5 6 `\1 6 50 \ \ t831 / / \ 12% i \ \ 1624\27 1196 1521 Plan -202(NB)v6/P47n#2 Z-202 v6 �'J�97 \/ � �1 1 696L-----1_______-____ _t_.,, / / 597 2 1316'8 898 1214 1 ^ g.. k111121 270 StCetvt�: 3' °'. 3., 3•14 -'7.. . _ 47, P. - 18(NE1 uPan#2Z-28�?x.'` 41$ c`O4 `� /511 ,�P',-a�� t h --�' 3 I• 603J.' 5•T ��.f}' 00 �- �i 17 � ' 1651// ��wy'Ar'� 1218 , J {,fak4 1 Pirat it Va 1319 f TT 691`- —i .�.�.•- 1 i � �4.�� r �► 14' /7t Plan Sch Plan Ivi 2- •1 .416 �/• . .7 011,41k 521 I„_: \ 1 \ —41,41114‘ 11 ,1,00... r- II 17 Plan N,: 7(� • 0,a, • IV. 900 .•�F�F� 022 /i`- ��j- Plan Sch Z-213 / _,._,. ,. 240 . 120 12 N Plar)\ii-618(`')v6/Plan#4 Z-61 v 1 V i N A / 1 Plan Ivi Z-62(NC)v6/Plan#2 Z-62 v6 vim 1 "' Plan Sch Z-201(NM)v6/Plan#6 Z- N 309 Plan Ivi Z-66(SC)v Plan 2 Z•• P' " 497.: ', - 2 7 210 581 494 / 1 869 496 5907 1 • 150 ,� Plan Sch 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U UN _ 0 C/3a N !( . ° |"" ! ,, ,:i. ...._ F. - . )§ !\( « ]{| LU m / 7 \\ 0 ...._ / -\ 2 g \ C 11)\( \ � ;|| \ o H _ \ o0 ■ = cocs1 .. ... ° ) =13 sKo CI- .j\ 3 { 2 _ _ g v. _ a © a ,5 G | ! . £§ { !, rii ;. o 7 co �\ IL d e | t§ ] .. § oTJ ( 0 ) § k «< N Um$a)I.=m®S S »» 0 —CO0 = O CO O mD• N Q7N d to � LaYNxi O —Q 2cp m m al aaaET_a U N— 6J C - O d - NOaf CL. o 0 0 _O 0 _- $ 0 0 _- $ —N O O C0 —00 - O N_ _- g 0. _ m O - 0 o N —o In Cl _ O 2 0 _O m O —O O —Cl O O —Cl tT ▪ Cl O n � N �o 6 a) O � tT Np _S O -- 0 to O tiliA O O O tii O to O ti") O U O Lc) til R V c7 fh N N .- r (ui/n p1.) uogeJedas aJluaO of aJlua3 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Kup Z-113(NH)v6 Project: Prudhoe Bay ND Reference: Z-113PB1 (P4)@ 88.30ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-113PB1 (P4)@ 88.30ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Plan Kup Z-113(NH)v6 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-113 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#5 Z-113 v6 Offset ND Reference: Offset Datum Reference Plan#5 Z-113 v6 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refen Interpolation Method: MD Interval 5.00ft Error Model: ISCWSA Depth Range: 8,945.00 to 13,266.85ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,523.26ft Error Surface: Elliptical Conic Survey Tool Program Date 4/21/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 34.30 500.00 Plan#7 Z-113PB1 v6(Plan Z-113PB1) GYD-GC-SS Gyrodata gyro single shots 500.00 2,748.77 Plan#7 Z-113PB1 v6(Plan Z-113PB1) MWD+IFR+MS MWD+IFR+ Multi Station 2,748.77 4,883.23 Plan#7 Z-113PB1 v6(Plan Z-113PB1) MWD+IFR+MS MWD+IFR+Multi Station 4,883.23 8,945.00 Plan#7 Z-113PB1 v6(Plan Z-113PB1) MWD+IFR+MS MWD+IFR+ Multi Station 8,945.00 9,250.00 Plan#5 Z-113 v6(Plan Z-113) INC+TREND Inclinometer+known azi trend 9,250.00 10,250.00 Plan#5 Z-113 v6(Plan Z-113) MWD MWD-Standard 9,250.00 13,266.85 Plan#5 Z-113 v6(Plan Z-113) MWD+IFR+MS MWD+IFR+ Multi Station Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB Z Pad Plan Ivi Z-34(SM)v6-Plan Z-34-Z-34 Plan#7 vi Out of range Plan lvi Z-42(NP)v6-Plan Z-42-Plan#5 Z-42 vE Out of range Plan Ivi Z-61 (NF)v6-Plan Z-61-Plan#4 Z-61 vE Out of range Plan Ivi Z-69(NJ)v6-Plan Z-69-Plan#3 Z-69 v6 Out of range Plan Kup Z-105(SN)v6-Plan Z-105-Plan#4 Z-1 Out of range Plan Kup Z-105(SN)v6-Plan Z-105PB1 -Plan#4 Out of range Plan Kup Z-113(NH)v6-Plan Z-113PB1-Plan# 9,106.22 9,110.00 21.30 138.32 -27.87 FAIL-Major Risk Plan Kup Z-115(NG)v6-Plan Z-115-Plan#9 Z-' Out of range Plan Kup Z-115(NG)v6-Plan Z-115PB1-Plan# Out of range Plan Sch Z-202(NB)v6-Plan Z-202-Plan#2 Z-2 Out of range Plan Sch Z-211 (SJ)v6-Plan Z-211-Plan#5 Z-2 Out of range Plan Sch Z-212(NO)v6-Plan Z-212-Plan#3 Z-2 Out of range Plan Sch Z-213(NL)v6-Plan Z-213-Plan#3 Z-2 Out of range Plan Sch Z-214(SK)v6-Plan Z-214-Plan#2 Z-2 Out of range Plan Sch Z-215(SH)v6-Plan Z-215-Plan#2 Z-2 Out of range Plan Sch Z-216(NI)v6-Plan Z-216-Plan#2 Z-21 Out of range Plan Sch Z-217(NN)v6-Plan Z-217-Plan#3 Z Out of range Plan Z-116-Plan Z-116-Plan#9 Z-116 Out of range Plan Z-116-Plan Z-116PB1 -Plan#7 Z-116PB1 Out of range Plan Z-118(30.5)v5-Plan Z-118 v5-Plan#3 Z-1 12,444.87 10,510.00 855.30 341.86 600.50 Pass-Major Risk Z-19-Z-19-Z-19 Out of range Z-19-Z-19A-Z-19A Out of range Z-20-Plan Z-20A-Plan#7 Out of range Z-20-Z-20-Z-20 Out of range Z-210-Z-210-Z-210 Out of range Z-210-Z-210PB1 -Z-210PB1 Out of range 4/21/2011 9:40:26AM Page 2 of 3 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Z Pad Well: Plan Kup Z-113 (NH) v6 Wellbore: Plan Z-113 Design: Plan #5 Z-113 v6 — From Colour To MD Scan inter alt90Pft 8945 8945 Scale 1 : 50 8945 13300 All wells pass major risk 0 175 330 30 150 _ 300 60 \ \ , \\,, H --V: \ \ Plan Kup Z-113(NH)v6lPlan V Z-1131431 v8J ' \--\ 9097 1 270 1 1 )000 I 90 ''' \I \ \ , I\ k \ ' \ ' 1 /i 1) i' iiii , i I ! 1) 1 / III \ 1 \ _\_\___\-- - \\\ \ \ \, __ ' / y / , / / / i /- / __, i j , , , / /// _ / ' \ , \ \ \\ \\\ . . / /// / , , ; \ \ ' /7/ 1 7/' / 240 • \' \ 120 1 150 210 150 17 180 Travelling Cylinder Azimuth (TFO+AZI)[0] vs Centre to Centre Separation [50 ft/in] 1 - \ ( ) ( ) ( ) U O ( ) ( ) ( ) ( ) ( ) (-) ( ) ( ) U U ( ) ( ) ( ) m (--\1 F6 S S}S t 1 SgiJ�S3d 002L 009 - O -S 0000 2 ..Z e4 2 !3 > N 0. 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C NeCd H , Jr Y' o;n � F. r o3 ou • Alaska Department of Natural ^esources Land Administration System Page 1 of/ Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources I find Alaska DNR Case Summary File Type: ADL File Number: 28262 Printable Case File Summary See Township,Range,Section and Acreage? New Search ? Yes No LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28262 Map Search for Status Plat Updates As of 07/11/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 08/26/1965 Total Acres: 2480.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date:05/04/2009 Case Subtype: NS NORTH SLOPE Last Transaction:CHNGTEXT CHANGE LEGAL TEXT Meridian: U Township: 011N Range: 012E Section: 17 Section Acres:640 Search Plats Meridian: U Township: 011N Range: 012E Section: 18 Section Acres:599 Meridian: U Township: 011N Range: 012E Section: 19 Section Acres:601 Meridian: U Township: 01 IN Range: 012E Section: 20 Section Acres:640 Legal Description 05-28-1965***SALE NOTICE LEGAL DESCRIPTION*** C14-58 T11N,R12E,UM 17, 18, 19,20 2,480.00 12-04-1969***ASSIGNMENT LEGAL DESCRIPTION*** SEGMENT 1 T11N,R12E,UM SECTION 17:640 ACRES SECTION 18:599 ACRES SECTION 19:601 ACRES CONTAINING 1840 ACRES,MORE OR LESS. SEGMENT 2-LANDS ASSIGNED T 11N,R 12E,UM SECTION 20:640 ACRES CONTAINING 640 ACRES,MORE OR LESS. 04-01-1977***UNITIZED AND PA LEGAL DESCRIPTIONS*** TRACTS 54&54A COMMITTED TO THE PRUDHOE BAY UNIT AND THE OIL RIM& GAS CAP PARTICIPATING AREAS TRACT 54 T. 11 N.,R. 12 E.,U.M. http://dnr.alaska.gov/projects/las/Case_Summary.cfm?FileType=ADL&FileNumber=2826... 7/11/2011 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME/2E4/ ,..gr-/AY PTD# agr410 VDevelopment Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: ,.G2:41.6yOE'.7 1/ POOL: o.e�e",s O/G /IgoG 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 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. 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