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211-078
Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. j1_ - 0 7g Well History File Identifier Organizing(done) ❑ Two-sided ❑ Rescan Needed RE AN: OVERSIZED: NOTES: Col Items: ❑ Maps: Grayscale Items: ❑ Logs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: MOW Date: 7/157/9. /s/ i/L4P Project Proofing BY: 4101> Date: 7//$ /fLf /s/ 04 Scanning Preparation I x 30 = 30 + 1 V = TOTAL PAGES �f (Count does not include cover sheet) BY: Date: p� ` /s/ Production Scanning r Stage I Page Count from Scanned File: L-1-9 (Count does include cover heet) Page Count Matches Number in Scanning Preparation: YES NO BY: 411CM Date: 7'/fc7'iL7i /sl MI) Stage I If NO in stage 1, page(s)discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 9 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. ReScanned BY: Maria Date: /s/ Comments about this file: Quality Checked 7/8/2014 Well History File Cover Page_20140708.doc o i c 0 _ O o I - III i o m o)-o Tp 9 II2 __Im o� < < < 1 v ;I I al Iwo z z z z Cli r> U il!i N coo all C T ov0m c I > I ca E1 � � ai 0) < c Z. L''� y ' Z Upymoaa 1 \ u 0-_c N O .c t OIii F. ) c QNH0 0 d E O 0 >0 0 J CK • d 0 0 _J < 0 a) a) W iX a O R' • y 2 0 Z Z o > E ci p c xx E > >• > _ v W Y O U U m y V` o ce Ce cco `� 0 2 I o. o ii > > .2 r 0 d Ta �u 0 a is a s as E coc' o I- Z as m o W z z �; �, ce W c II 1 W Cowa)it E y / � z 0) i U 0 o o a m J m �% 1 v a� z II c c us 0 0 o w u, 0 J O E m IIO in Om el c oI c'od co U U cs)To N o a J N U — U ECCI 1 Z J N (4 >- N C Z Q w r N o. o o E F— O u, 0 _ a m 53 C `• zco . E �� z r RI w (n �� !g rn co = 03 fA U a) C I` V� 0 o C C O 1 O C 1'" O g c cf6i a) a ZI o I Q a E ` log • 0 0 E U o 2 0 z 3 ,I m a) 1 1 c R c 3 oZ :. 1, as 1 IosE O Z O m � CI c .., ya � o wo_ Ii m, rs Oi > 0 — E I c v W Q Z Y c woz' I y U _p o 13 O O o y wmI H a. f}'6 r O. p C ` >O 1 a o — E E zH \:N.3r IlI m O ? r 01� N Z OF FO- m c .2 I w OLL y 0) o a, Q g 0 , c R ce z w °� E c y J 0 0_ 7 0 d a Q d O R T a1 Z O N 1 O O a 0 I- 3 Jo1- , — 3 0 a 0 U U : 'cifirriar 11 cr-U-' irt' [L [LA Z [11:\K lir' 1 ' 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 Alex Vaughan Senior Drilling Engineer Pioneer Natural Resources Alaska, Inc. 700 G Street, Suite 600 Anchorage, AK 99501 Re: Oooguruk Field, Nuiqsut Oil Pool, ODSN-22i Pioneer Natural Resources Alaska, Inc. Permit No: 211-078 Surface Location: 2907' FSL, 1204' FEL, SEC. 11, T13N, R7E, UM Bottomhole Location: 1211' FSL, 667' FEL, SEC. 23, T13N, R7E, UM Dear Mr. Vaughan: Enclosed is the approved application for permit to drill the above referenced service 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. cer it r. . Nor a Co u.' sioner DATED this 2 jday of June, 2011. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) FEDI STATE OF ALASKA I KA OIL AND GAS CONSERVATION COh SION j JNNi 1. 6 al, PERMIT TO DRILL 20 AAC 25.005 R l3ika CIA & Go,x Caw Commission 1a.Type of Work: 1b.Proposed Well Class: Development-Oil ❑ Service- Winj ❑ Single Zone ✓[], 1c.Specify t well is sscprrooposed for: Drill ❑✓ Redrill ❑ Stratigraphic Test ❑ Development-Gas CI Service-Supply ❑ Multiple Zone ❑ Coalbed G e- plydrates ❑ Re-entry ❑ Exploratory 0 Service- WAG ❑., • Service-Disp El Shale Gas ❑ 2.Operator Name: 5. Bond: Blanket ElSingle Well ❑ 11.Well Name and Number: Pioneer Natural Resources Alaska, Inc. Bond No. 103655283 • ODSN-22i 3.Address: 700 G Street,Suite 600 6.Proposed Depth: 12.Field/Pool(s): Anchorage,AK 99501 MD: 18,109' • TVD: 6316'• 4a. Location of Well(Governmental Section): 7.Property Designation(Lease Number): Oooguruk-Nuiqsut Oil Pool • Surface: 2907'FSL, 1204'FEL, Sec. 11,T13N, R7E, UM ADL 355036./ADL 355038 • Top of Productive Horizon: 8.Land Use Permit: 13.Approximate Spud Date: 1546'FSL,4675'FEL, Sec. 14,T13N, R7E, UM 417497 August 17,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1211'FSL,667'FEL, Sec.23,T13N, R7E, UM 5760 5884' • 4b.Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: . 56.2 feet 15.Distance to Nearest Well Open Surface: x-469793.67 . y-6031023.58 • Zone-ASP 4 GL Elevation above MSL: to Same Pool: ODSN-17L1 is 1146' 13.5 feet away 16.Deviated wells: Kickoff depth: 300 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 95.76 degrees Downhole: 3219 • Surface: 2524 • 18.Casing Program: Specifications Top - Setting Depth - Bottom Cement Quantity,c.f.or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 24" 16" 109# H-40 Welded 115' Surface Surface 158' 158' Driven 14-1/2" 11-3/4" 60# L-80 HYD 521 4380' Surface Surface 4423' 3251' 546 sx PF'L';496 sx Class'G' 11-3/4" 9-5/8" 40# L-80 HYD 521 4764' . 4273' 3183' 9037' 5361' 467 sx Class'G' 8-1/2" 7" 26# L-80 HYD 511 11,083' Surface Surface 11,126' 6199' 302 sx Class'G' 6-1/8" 4-1/2" 12.6# L-80 HYD 521 7133' 10,976' 6152' 18,109' 6316' Uncemented 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-Entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effect.Depth MD(ft): Effect.Depth TVD(ft): Junk(measured): Casing Length Size Cement Volume MD TVD !i. Conductor/Structural Surface Intermediate Production Liner Perforation Depth MD(ft): Perforation Depth TVD(ft): 20. Attachments: Property Plat ❑✓ BOP Sketch❑ Drilling Program ❑✓ , Time v.Depth Plot ❑ Shallow Hazard Analysis❑ Diverter Sketch❑ Seabed Report El billing Fluid Program Q 20 AAC 25.050 requirements 0 21. Verbal Approval: Commission Representative: '.-F Date 22. I hereby certify that the foregoing is true and correct. Contact Alex Vaughan,343-2186 Prepared By:Kathy Campoamor,343-2183 Printed Name Alex Vaugha � - Title Senior Drilling Engineer � ,�f•�' Date 6/15/2011 Signature ,' Phone 343-2186 _-__ Commission Use Only Permit to Drill API Number: �// / Permit Approval See cover letter for other Number: 50 /L � 3L-'�� Date: I /1 �� l requirements. Conditions of approval: If box isischecked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained in shales: Er Other: A'--f 5 Z 0 3 , B 0 1 754 Samples req'd: Yes❑ No[Q" Mud log req'd: Yes ❑ o E/ , Z Soo rsd•' blr".i 1 e S c 1- (, . ) H2S measures: Yes❑ No E Directional svy req'd: Yes [�No❑ ° C 2 S. 0380.)(2 _ -)wu-.1. f']I;UGr,Ler wet; ✓• ZO AAC e * M I T� C SBL r� c�G ii-;0,a& Op•Grc4ort. iM. 4..LGorrl N/j A • DATE: �p•a���� Oj� THE COMMISSION APPROVED BY ,COMMISSIONER ORIOtNA. G.Zy•ll -,,,,„ 1- ,,/12 7/4-f Form 10-401(Revised 7/2009) This permit is valid for 24 months from the date of approval(20 AAC 25.005(g)) Submit in Duplicate ODSN-22i Injection Well Proposed Completion Well Head: 11-3/4",5K,VetcoGray 0 Tree: 3-1/2",5K, Horizontal Casing Rem# _ Item MD(ft) ND(ft) A 16"Conductor 158 158 ' ` B 11-3/4"60#L-80 Hydril 521,10.772"ID 4,423 3,251 C 9 5/8"40#Hydril 521,8.835"ID* 9,037 5,361 -fS.1 0 O D _7"26#L-80 BTC-M,6.276"ID*' 11,126 6,199 E 4%#12.60#L-80 Hydril 521 18,109 6,316 F 3W 9.3#L-80 TCII 10,926 6,137 *Estimated TOC @ 7,750'MD **Estimated TOC . 10,063'MD 1 VetcoGray Tubing Hanger 34 34 li 1 2 HES Wellstar TRSSSV w/3%"9.2#TC-II Boxx Pin 9 Chr 2,000 1,879 w/2.813"X"Profile w/1/4"x.049 SS CL to Surface (3)-13 GLM#1 HES Vanoil 3W x 1W Gas Lift Mandrel w/3W TBD TBD O 9.2#TC-II Boxx Pin w/Dummy in place t3 GLM#2 HES Vanoil 3W x 1W Gas Lift Mandrel w/3W 4 TBD TBD 9.2#TC-II Boxx Pin w/Dummy in place GLM#3HES Vanoil 3W x 1W Gas Lift Mandrel w/3%"9.2# 5 TBD TBD TC-II Boxx Pin w/Dummy in place 6 HES ROC Gauge&Carrier w/3%"9.2#TSHP Box x Pin 10,351 5,946 (min.1 joint above X nipple) 7 HES 2.813"X"Nipple 9 Chr w/3'/"9.2#TC-I I Box x Pin 10,401 5,964 (min 2 jts above packer) I. \ Weatherford 4%13.5#x 7"23-32#Model"Ultra Pak-TN" C 4)_j8 Hydraulic Set Permanent Production Packer w/4%13.5# 10,471 5,990 New Vam Pin x Pin 9 HES 2.813"X"Nipple 9 Chr w/3%"9.2#TC-Il Boxx Pin 10,491 5,997 (min 2lts above XN nipple) 10 HES 2.813"XN"Nipple w/2.750"No-Go 9Chr w/3W TCII 10,561 6,021 Box x Pin w/"RCI-M"Plug in Place(Set-70 deg Incl.) O 11 W LEG w/3%"TCII Box 11,126 6,199 End of Assembly 11,128 6,200 Lower Completion © kem#,- Its MDift) ND(ft) 12 W FT PBR Te Back Sleeve 15ft 10,958 6,147 C 5 13 W FT"NTH"Liner Top Pkr w/Hold Down Slips 5"18#x 7" 10,973 6,151 26#w/Vam Top HT Pin W FT"PHR"Rotating Liner Hanger 5"18#x 7"26#w/5" O 14 Vam Top HT Pin x Pin and XO w/5"New Vam HT Box 4'A" 10,976 6,152 Hydril 521 Pin O O 15a x 6 W FT ZoneSelect Sliding Sleeve w/6 1/2 holes w/4-1/2 TBD TBD Hydril 521 Boxx Pin(OPEN Position) WFT ZoneSelect Sliding Sleeve w/2.20 Carbide Nozzles TBD TBD OkM -T-1 ® 15b x 6 w/4-1/2 Hydril 521 Boxx Pin(Closed Position) 15c x 6 W FT Genesis 5.750 OD x 4-1/2 12.60 x 15 Ft Oil Base Swell TBD TBD O 0 Pkr w/4-1/2 Hydril 521 Boxx Pin L-80 16 Liner Shoe(PLUGGED) 18,094 6,316 O 0'. �f O TD 18,109 6,316 0 1 I I I I II 0 S , , , , , , O Open • Closed 0c Date: Revision By: Comments P 10 N E E R 4-25-2011 Alex Vaughan Original Proposed Design 6-13-2011 Alex Vaughan Updated Cement Design NATURAL RESOURCES ALASKA PIONEER NATURAL RESOURCES ALASKA Pioneer Natural Resources Alaska, Inc. 700 G Street,Suite 600 Anchorage,Alaska 99501 Tel:(907)277-2700 Fax:(907)343-2190 June 13th, 2011 RECEIVED State of Alaska JUN 16 2011 Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite #100 Anchorage, AK 99501 Aliska Oil&Ge*CM.Commission Anchorage RE: Application for Permit to Drill ODSN-22i Surface Location: 2907' FSL, 1204' FEL, Sec 11, T13N, R7E, UM X = 469,793.67, Y = 6,031,023.58, ASP4 Pioneer Natural Resources Alaska, Inc. (PNRA) hereby applies for a Permit to Drill a development well from the Oooguruk Drill Site (ODS) located within the Oooguruk Unit. The well is designed to be an injection well in the Oooguruk-Nuiqsut formation. PNRA requests the Permit to Drill based on approved Pool Rules. PNRA intends to pre-produce ODSN-22i prior to injection. As indicated in the attachments, the drilling and well construction program includes the following: • Surface Hole: o Drill 14-1/2" to -4,423' MD /3,251' TVD and set 11-3/4" casing. ' • Intermediate Hole 1: o Drill 10-5/8" and under-ream while drilling (UWD) to 11-3/4" to -9,037' MD / 5,361' TVD. Run and set a 9-5/8" drilling liner. • Intermediate Hole 2: o Drill 8-1/2" to -11,126' MD / 6,199' TVD and set 7" Intermediate casing into the top of the Oooguruk-Nuiqsut formation. • Lateral Hole: o Drill 6-1/8" horizontally to -18,109' MD / 6,316' TVD and set a 4-1/2" solid liner _ with perforated pups. • Completion: o 3-1/2" injection completion string with Packer, Rock Gauge, GLM & SSSV. Alaska Oil & Gas Conservation Commission June 13th, 2011 Page 2 of 3 PNRA will implement Managed Pressure Drilling technology (MPD) while drilling the Intermediate 2 and Lateral hole section of ODSN-22i as outlined below. • From TD of Intermediate 1 until Intermediate 2 TD o Use -9.8-10.5 ppg fluid while using MPD to control pressure from the surface to -12.5 ppg EMW at the bottom of the hole. ■ Open formations: • Kuparuk Sands, -9.8 ppg Pore Pressure • Nuiqsut Sands, -9.8 ppg Pore Pressure • From the Intermediate 2 to TD • o Use -7.2-8.2 ppg fluid while using MPD to control pressure from the surface to -9.8-10.2 ppg EMW at the bottom of the hole during connections and while tripping. - ■ Open formations: • Nuiqsut Sands, -9.8 ppg Pore Pressure ., Utilizing the MPD process described above allows PNRA to reduce the materials needed for the well, increasing the overall safety of the personnel on the development by handling less material. In addition the lower solids in the production section mud system will reduce formation damage along the sandface of the well. Based on information previously submitted to the AOGCC and included in the AOGCC Oooguruk Field File, PNRA requests an exemption from 20 AAC 25.035 (c) which requires a diverter system be installed on the well while drilling the surface interval. In the future, PNRA may provide information and permitting requesting annular disposal of drilling wastes on this well. Please find attached information as required by 20 AAC 25.005 (a) and (c) for your review. Pertinent information attached to this application includes the following: 1) Form 10-401 Application for Permit to Drill per 20 AAC 25.005 (a). 2) A copy of the proposed drilling program per 20 AAC 25.005 (c) (13) including: a. The drilling fluid program as required by 20 AAC 25.033 b. Complete logging and mud logging operations are planned and descriptions are attached. c. A complete proposed casing and cementing program is attached as per 20 AAC 25.030. d. A summary of the drilling operations. e. A summary of drilling hazards per 20 AAC 25.005 (c) (4). f. A wellbore schematic is also attached visually depicting the proposed well. 3) A copy of the Planned Directional Well Path - including traveling cylinder and development layout plots. Alaska Oil & Gas Conservation Commission June 13th, 2011 Page 3of3 The following items are on file with the AOGCC: 1) A plat showing the surface location proposed for the well per 20 AAC 25.005 (c) (2). "/ 2) Diagrams and descriptions of the BOP and diverter equipment to be used on Nabors Alaska Rig 19-AC as required by 20 AAC 25.035 (b) and (c). 3) A description of the procedure for conducting formation integrity tests per 20 AAC " 25.035 (c) (5). 4) PNRA does not anticipate the presence of H2S in the formations to be encountered in this well. However, H2S monitoring equipment as specified in 20 AAC 25.065(1) will be functioning on the rig as standard operating procedure for all wells drilled by that rig. Products for treating H2S contamination in the drilling mud system will be maintained on the ODS. The following are PNRA's designated contacts for reporting responsibilities to the Commission: 1) Completion Report Robert Tirpack, Drilling Superintendent (20 AAC 25.070) 907.343.2121 robert.tirpack@pxd.com 2) Geologic Data and Logs Paul Daggett, Senior Staff Geophysicist (20 AAC 25.071) 907.343.2134 paul.daggett@pxd.com The anticipated spud date for this well is August 17th, 2011. If you have any questions or require further information, please contact Alex Vaughan at 907.343.2186. Sincerely, Alex Vaughan Senior Drilling Engineer Attachments: Form 10-401 Supporting permit information cc: ODSN-22i Well File Permit to Drill Well Plan Summary ODSN-22i -Jc i: �-� Oooguruk — Nuiqsut Single Lateral Injection Well ��� 4 Surface TD @ 4,423' MD / 3,251' TVD a' Drilling Liner TD @ 9,037' MD / 5,361' TVD Intermediate TD @ 11 ,126' MD / 6,199' TVD Lateral TD @ 18,109' MD / 6,316' TVD Surface Location: 2907' FSL, 1204' FEL, Sec. 11, T13N, R7E, Umiat ASP 4 (NAD27) projection X =469793.67 Y = 6031023.58 Target: Oooguruk-Nuiqsut 1546' FSL, 4675' FEL, Sec. 14, T13N, R7E, Umiat X = 466261.29 Y = 6024455.52 6,199' TVDrkb Bottom Hole Location ODSN-22i 1211' FSL, 667' FEL, Sec. 23, T13N, R7E, Umiat X = 470292.00 Y = 6018786.00 6,316' TVDrkb AFE Number: TBA Est. Start Date: August 17th, 2011 Rig: Nabors 19AC Operating days: 49 days to Drill and Complete Objective &Well Type Nuiqsut Development Well Well Design: Modified Slimhole (11-3/4" x 9-5/8" liner x 7" x 4-1/2" liner) Single-Lateral Current Mechanical Condition: Well Bay Footing/ODS Ground Level: Elevation above MSL: 13.5' RKB to Ground Level: 42.66' Rig Elevation: RKB + MSL = 56.16' Conductor: 158' MDrkb Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 1 of 12 Well Control: Well Section Pressure Depth psi TVD Basis 14-1/2" Surface Section Maximum anticipated BHP 1454 3251 Based on seawater gradient of 0.4472 psi/ft Maximum surface pressure 1096 Surface Based on BHP and a full column of gas from TD @ 0.11 psi/ft 10-5/8" x 11-3/4" Drilling Liner Hole Section Maximum anticipated BHP 2397 5361 Based on seawater gradient of 0.4472 psi/ft Maximum surface pressure 1808 Surface Based on BHP and a full column of gas from TD @ 0.11 psi/ft 8-1/2" Intermediate Casing Hole Section Maximum anticipated BHP 3159 6199 Based on 9.8 ppg Oooguruk-Kuparuk pore pressure Maximum surface pressure 2477 Surface Based on BHP and a full column of gas from TD @ 0.11 psi/ft 6-1/8" Lateral Hole Section Maximum anticipated BHP 3219 6316 Based on 9.8 ppg Oooguruk-Nuiqsut pore pressure - • Maximum surface pressure 2524 Surface Based on BHP and a full column of gas from TD @ 0.11 psi/ft Maximum casing pressure: 3500 psi @ surface Planned BOP test pressure: 4500 psi (annular to 2500 psi) ,„,' Due to required 4500 psi casing pressure test. Planned completion fluid: 10.2 ppg Brine/6.8 ppg Diesel Diverter (see attached schematic)— Note: Requesting Diverter Exemption on a Well by Well Basis): Hydril 21-1/4" 2M annular BOP 1 16" full opening knife gate valve, hydraulically actuated 16" diverter line 5000 psi BOP stack (see attached schematic): Hydril GK 11" 5M annular BOP Hydril 11" 5M single ram BOP w/studded connections Hydril 11" 5M single ram BOP w/studded connections Drilling cross 11" 5M x 11" 5M with 2 ea. 3-1/8" 5M side outlets w/flanged connections 2 ea. 3-1/8" 5M full opening inner manual gate valves mounted on drilling cross 2 ea. 3-1/8" 5M full opening outer remote hydraulic controlled gate valves mounted on inner gate valves. Hydril 11" 5M single ram BOP w/studded connections Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 2 of 12 Formation Integrity Testing Requirements: Test Point Depth Test Type Minimum EMW 11-3/4" Surface Shoe Rathole + 20' to 50' from shoe LOT 12.5 ppg 9-5/8" Drilling Liner Shoe Rathole + 20' from shoe FIT 13.5 ppg 7" Intermediate Shoe Rathole + 20' from shoe FIT 12.5 ppg Drilling Fluids Program: Surface Hole Mud Properties: 14-1/2" hole Spud Mud Interval Density(ppg) Viscosity(secs) YP PV 10 sec gel API FL Initial 8.8 150-200 35- 50 15-25 10- 15 unrestricted Final 9.2-9.6 70-100 25- 35 15-25 10- 15 <12 Drilling Liner Mud Properties: 10-5/8" x 11-3/4" hole LSND Interval Density (ppg) Viscosity (secs) YP PV MBT _ API FL Initial to TD 9.8ppg 40 - 60 15 - 25 12-20 < 12 8- 10 Intermediate Hole Mud Properties: 8-1/2" hole LSND Interval Density (ppg) Viscosity(secs) YP PV MBT API FL Initial to TD 9.8 - 10.5 ppg 50-70 15 - 25 15 - 25 < 10 3-5 (-12.5 ppg via (8-10 HTHP) MPD) Lateral Hole Mud Properties: 6-1/8" hole MOBM Interval �ensiitty(p\ Viscosity (secs) YP PV _ ES HTHP 0/W Initial to TD 7.2 - 8.2 ppg 55 - 80 12 - 25 10 - 20 800-2000 <6 94/6 (N____ (-9.8 ppg via MPD) Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 3 of 12 Formation Markers: Formation Tops MD (ft) TVDrkb (ft) Pore Press. EMW Comments (psi) (PP9) Base of Permafrost 1729 1656 Top West Sak 2513 2277 1024 8.65 Base of fluvial sands Tuffaceous Shales 3799 2965 Hue2 tuff 4415 3246 11-3/4" casing point 4423 3251 Brook 2B 6656 4267 1919 8.65 Top Torok Sand 8250 4993 Base Torok Sand ) 8754 5225 Torok Shale 1 9026 5354 9-5/8" casing point 9037 5361 Top HRZ 9953 5783 Base HRZ 10280 5917 Kalubik Mkr 10426 5972 Top Kup C 10563 6020 3068 9.8 Base Kup C (LCU) 10577 6025 BCU 11126 6197 Top Nuiqsut 11350 6251 3185 9.8 Production Zone 7" casing point 11126 6199 ODSN-22i TD 18109 6316 Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 4 of 12 Logging Program: 14-1/2" Section: Drilling: Dir/GR Open Hole: N/A Cased Hole: N/A 10-5/8" x 11-3/4" Section: Drilling: Dir/GR/Res/ACAL Open Hole: N/A Cased Hole: N/A 8-1/2" Section: Drilling: Dir/GR / Res Open Hole: N/A Cased Hole: 6-1/8" Section: Drilling: Mud logging Dir/GR/ Res/AzDens/Neut / PWD/BatSonic Open Hole: N/A Cased Hole: N/A Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 5 of 12 ODST-23I Casing Program: Hole Casing/ Weight Grade Conn. Casing Csg/Tbg Hole Btm Size Tubing Length Top MDrkb/TVDrkb MDrkb 24" 16" 109# H-40 Welded 115 Surface 158 158 14-1/2" 11-3/4" 60# L-80 Hydril 521 4380 Surface 4423 3251 11-3/4" 9-5/8" 40# L-80 Hydril 521 4764 4273 9037 5361 8-1/2" 7" 26# L-80 Hydril 511 11083 Surface 11126 6199 6-1/8" 4-1/2" 12.6# L-80 Hydril 521 7133 10976 18109 6316 Tubing 3-1/2" 9.3# L-80 IBT-BTC 10883 Surface 10926 6137 Casing Properties Size Weight Grade ID Drift Conn. Internal Collapse Tensile Strength ID Yield (psi) (psi) Joint Body 16" 109# H-40 14.67" 14.5" Welded Conductor casing 11-3/4" 60# L-80 10.772" . 10.62" Hydril 521 5830 3180 1384M 1384M 9-5/8" 40# L-80 8.835' 8.75" Hydril 521 5750 3090 916 M 916 M 7" 26# L-80 6.276" 6.151 Hydril 511 7240 5410 604 M 604 M 7" 26# L-80 6.276" 6.151 BTC-M 7240 5410 604 M 604 M 4-1/2" 12.6# L-80 3.958" 3.833" Hydril 521 na na 289 M 289 M Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 6 of 12 Cement Calculations: Casing Size: 11-3/4" Surface Casing-single stage Basis: Lead: 75% excess over gauge hole in permafrost+ 50 bbls, 30%excess over gauge hole below permafrost Lead TOC: Surface Tail: 30% excess, plus 85' shoe track Tail TOC: 3,372' MD, 500' MD of open hole Total Cement Volume: Preflush 10 bbl water Spacer 60 bbl 10.0 ppg Dual Spacer Lead 404 bbls/546 sx of 10.92 ppg Type "L" Permafrost Cement. 4.15 cf/sk, 20.0 gps water req. Tail 105 bbls/496 sx of 15.9 ppg Premium "G" + adds. 1.19 cf/sk, 5.23 gps water req. Displ 476 bbls Mud Temp BHST -55° F, BHCT -60° F estimated Should hole conditions indicate that we will have trouble getting cement to surface, a TAM Port Collar may be run in the casing string and a staged cement job will be performed. In the event that cement is not circulated to surface during the initial surface casing cement job, notify the AOGCC of the upcoming remedial cement work for possible witness of cement to surface. Casing Size: 9-5/8" Intermediate 1 - Drilling Liner-single stage Basis: TOC: 7,750' MD, The greater of 500' MD of open hole or 500' MD above top of Torok 60%excess, plus 85' shoe track Total Cement Volume: Preflush 10 bbl water Spacer 60 bbl 10 ppg Dual Spacer Primary 97 bbls/467 sx Premium "G" +adds. 1.17 cf/sk Displ 431 bbls mud Temp BHST - 135° F, BHCT -110° F Casing Size: 7" Intermediate 2-single stage Basis: TOC: .10,063'MD, 500' MD above the top of the Kuparuk 40% excess, plus 85' shoe track Total Cement Volume: Preflush 10 bbl water Spacer 40 bbl 12.5 ppg Dual Spacer Primary 63 bbls/302 sx Premium "G" + adds. 1.17 cf/sk Displ 422 bbls mud Temp BHST - 165° F, BHCT -135° F This well is outside the 1/2 mile radius around the disposal well at the intersection with the Torok disposal zone. Disposal: Annular Infection: Currently not requested, but may be requested in the future. Cuttings Handling: All Class 2 solids will be processed on the Oooguruk Drill Site by the Grind and Inject facility in the Rig Support Complex and injected down the approved Class 1 /Class 2 disposal well, ODSDW1-44. Fluid Handling: All Class 1 and Class 2 fluids will be processed on the Oooguruk Drill Site by the Grind and Inject facility in the Rig Support Complex and injected down the approved Class 1 /Class 2 disposal well, ODSDW1-44. Pioneer Natural Resources Last Revised:June 13th,2011 ODSN-22i Permit To Drill Page 7 of 12 Pioneer Natural Resources Well Plan Summary Drilling Operations Pre-Rib Work 1. 16" Conductors have been set and the Well Bay modules have been placed. Rib Activity: Drill and Complete 1. MIRU Nabors 19AC over pre-installed 16" cRnductor casing. • 2. Nipple up spacer spools and riser. '-�rtx-rfee (✓aw, J �`'r 3. MU 14-1/2" Directional Drilling, MWD/LWD assembly. Drill surface hole to the casing point, making wiper trips as necessary. Circulate and condition the hole to run casing. POOH. 4. Run and cement the 11-3/4" surface casing. Bump the plug and bring the pressure up to 3500 psi-chart and hold for 30 minute pressure test. Send chart to ODE. Note: A Port Collar may be run based on hole conditions at Company Rep discretion. 5. Ensure floats are holding. WOC if needed. 6. ND Riser, NU Drilling Spool and BOPE and test. Test BOPE to 250/4500 psi - Notify AOGCC 48 hours in advance of test. 7. MU 10-5/8"x 11-3/4" RSS, MWD/LWD (BHA will be a 10-5/8" pilot hole opened to 11-3/4"while drilling). 8. RIH and cleanout casing to landing collar. Displace well over to Intermediate 1 drilling fluid. 9. Drill through surface shoe, rathole+20' of new hole and perform LOT to a minimum of 12.5 ppg. 10. Drill 10-5/8"x 11-3/4" Intermediate 1 to casing point. 11. Change one set of pipe rams to 9-5/8"and test BOPE as required. 12. Run 9-5/8"drilling liner on 5" DP. Set liner hanger, release from liner and cement. 13. Bump the plug, increase pressure to 3500 psi and hold pressure for 5 minutes • This will provide a quick integrity test of the 9-5/8" liner • Note the pressure test in the morning report 14. Release pressure and ensure floats are holding • This will check the integrity of the floats to ensure there isn't a flow path through the liner shoe 15. Set liner top packer and test the liner top to 3500 psi for 5 minutes • This will check the integrity of the liner top packer to ensure isolation between the liner and the surface casing • Note the pressure test of the liner top in the morning report 16. POOH w/5" DP. 17. ND BOPE, ND Drilling spool, NU Mulitbowl Wellhead, & NU BOPE and test to 250/4500 psi - Notify AOGCC 48 hours in advance of test. • Ensure integrity of the liner and the liner top has been verified by a pressure test prior to performing this step 18. MU 8-1/2" RSS, MWD/LWD on 5" DP. RU MPD trip nipple. 19. RIH and cleanout casing to landing collar. 20. Close pipe rams and combo pressure test the Drilling Liner and the Surface Casing to 3500 psi for 30 minutes -- chart and send to ODE. 21. Drill through drilling liner shoe +20' of new hole and perform FIT to 13.5 ppg, 22. RD MPD trip nipple and RU bearing assembly. Drill 8-1/2" Intermediate 2 to casing point. 23. Circulate and condition the well to run 7" intermediate casing. Displace the well over to -12.5 ppg mud for shale stability. RD the MPD bearing assembly and RU MPD trip nipple. POOH. 24. Change one set of pipe rams to 7" and test BOPE as required. Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 8 of 12 Note: Intermediate casing string may be run as a 7" long string or as a 7" liner with a 7"tieback string to surface depending on drilling conditions. Both options have been provided below: Option#1: 7" Lonostrinq 25. Run and cement the 7"26#L-80 BTC-M intermediate casing. 26. Bump the plug and bring the pressure up to 3500 psi—hold for 5 minute pressure test. Release pressure and ensure floats are holding. 27. LD 5"DP Option #2: 7" Liner with Tie-Back Option 28. Run 7", 26#L-80 Hydril 511 intermediate liner on 5"DP. Set liner hanger, release from liner and cement. Bump the plug and bring the pressure up to 3500 psi—hold for 5 minute pressure test. • This will provide a quick integrity test of the 7"liner. • Note the pressure test in the morning report. 29. Release pressure and ensure floats are holding. • This will check the integrity of the floats to ensure there isn't a flow path through the liner shoe. 30. Set liner top packer and test the 9-5/8"liner and 7"liner top packer to 3500 psi for 30 minutes. • This will check the integrity of the 7"liner top packer to ensure isolation between the 7"liner and the 9-5/8"drilling liner. • Note the pressure test of the liner top in the morning report 31. Run 7", 26#L-80 BTC intermediate tie-back to 7"liner-hanger seal bore and space out. 32. Displace diesel freeze protection down 7"annulus to 2,000'TVD with annular preventer closed. 33. Strip through annular preventer and sting into 7"liner-hanger seal bore and land tie-back casing. 34. Pressure test seal assembly to 3500 psi—hold& chart for 30 minutes. 35. Pressure test 7"tie back annulus 3500 psi—hold and chart for 30 minutes. 36. Set and test 7"pack-off. 37. RU MPD trip nipple& PU 4" DP as needed to TD the lateral hole section. 38. RIH to landing collar and w/4" DP & mill tooth cleanout bit. 39. Change pipe rams to 4" and test BOPE to 250/4500 psi—Notify AOGCC 48 hours in advance of test. 40. Pressure test casing to 3500 psi—chart and hold for 30 minute pressure test unless previously done in Option #2. Send chart to ODE. 41. Drill through Intermediate 2 shoe and POOH w/cleanout assembly. 42. MU 6-1/8" RSS, MWD/LWD drilling assembly on 4" DP and RIH. 43. RD MPD trip nipple and RU bearing assembly. 44. Displace to drill-in-fluid for lateral hole. 45. Drill rathole+20' of new hole and perform FIT to 12.5 ppg. 46. Drill 6-1/8" lateral lateral hole to TD. 47. Circulate and condition hole to run liner. 48. POH to intermediate shoe and set heavy weight balance brine pill. Cont POOH to surface. 49. Change one set of pipe rams to 4-1/2" and test BOPE as required. 50. RIH w/4-1/2" solid production liner w/sliding sleeves and swell packers from 150' inside the intermediate shoe to TD. Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 9 of 12 51. Release from the liner and set the liner top packer. Displace the well over to 10.2 ppg Brine and POOH. 52. MU and RIH w/3-1/2 injection completion w/Packer, Rock Gauge, GLM, SSSV. 53. Space out, Land the tubing and RILDS. Install TWC. 54. ND BOPE, NU tree and test to 5,000 psi. 55. Pull TWC and reverse circulate corrosion inhibited brine and diesel to freeze protect the well to -2000' TVD and allow to u-tube. 56. Drop ball and rod and allow to seat. Pressure test the tubing to 3,500 psi-chart and hold for 30 minutes. Bleed off pressure and then pressure test the annulus to 3,500 psi-chart and hold for 30 minutes. Bleed off pressure. 57. RDMO to next well. Post-Rio Work 1. RU Slickline and pull the ball and rod. Pull the RHC-m plug. 2. RD Slickline. Pioneer Natural Resources Last Revised:June 13th,2011 ODSN-22i Permit To Drill Page 10 of 12 Casing Shoe Leak Off Test Procedure: 1. After testing BOPE, pick up the drilling assembly and RIH to the float collar. Circulate to consistent mud weight and rheology. 2. Shut in with the pipe rams and test the casing to the required test pressure. Record the volume of mud required and the corresponding pressures in 1/4 bbl increments. When the design pressure is reached shut in the well and record the shut in pressure for 30 minutes. 3. Bleed off pressure while taking returns to a calibrated tank and record volume recovered. 4. Drill out the shoe track. Drill 20 ft of new hole and circulate the hole clean with consistent mud weight in/out. Pull up into the casing shoe. 5. Perform a Leak Off Test (or Formation Integrity Test): • Calculate the required test pressure to reach leak off (or formation integrity test limit) with the actual mud weight and the estimated fracture EMW. • Plot the casing test data and the calculated leak off on appropriate scale coordinate paper. As a guide, use the data from the casing test to determine the approximate volume of mud required to reach the calculated LOT/FIT. • Shut the well in. R/U the test pump. • Bring the pump on line at 0.25—0.50 bpm. Maintain a constant rate. • Record the pressure for every 1/4 of a bbl pumped. • Continue pumping until the pressure vs. volume curve breaks over indicating leak off. Note: For FIT, do not take to leak off • Discontinue pumping and shut in the well. Record the shut in pressure in 1 minute increments for 10 minutes or until pressure shows stabilization. • Bleed off the pressure and record the volume of mud recovered. • Plot the data to determine the LOT/FIT pressure at the shoe as EMW. • Submit the test results to the Pioneer drilling engineer for distribution as required. Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 11 of 12 ODSN-22i Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE Well Control • Prior to drilling into the Kuparuk, hold a pre-reservoir meeting to outline heightened . awareness for kick detection and lost circulation. o Following the Kuparuk penetration, pick up off bottom, shut off the pumps and perform a flow check to verify there isn't any overpressure. Hydrates and Shallow gas • No hydrates are expected in this area. • Lost Circulation/Breathing/Formation Stability/Stuck Pipe Events • Breathing may be seen while drilling the Hue shale. Minimizing swab and surge on the • formation is critical to reducing the impact of breathing in the wellbore. Breathing was seen in the ODSN-40 well, but only after substantial time in trying to solve the lost circulation problems in the fault seen in and below the Torok Sands. • Lost Circulation was seen in drilling the ODSN-36 across this same interval. Review the • DOB2C pill procedure prior to penetrating the Kuparuk. Follow the Lost Circulation Decision Tree and combat losses accordingly • During the attempt to retrieve a fish from the ODSK-33 well, an un-centralized BHA got stuck from differential sticking across the Torok due to the increase in mud weight needed to hold back the shales below. Differential sticking indications were not noted with the drilling BHA and drill pipe. • There is a small section of formation above the Top of the HRZ that is volcanic in nature . (TUFFS) and can either have "glassy" material, swelling clays or both while drilling, which produced a pack off on ODSK-33 and ODSN-45. Kick Tolerance/Integrity Testing Kick Tolerance/Integrity Testing Summary Table Casing set/ Maximum Mud Weight Exp Pore Min LOT/FIT Interval Influx Volume Press 11-3/4" Surface/ 10-5/8"x 11-3/4" 765 bbls 9.8 ppg 2397 12.5 ppg (LOT) 9-5/8" Drilling Liner/ Infinite 9.8 10.5 ppg 3159 13.5 ppg (FIT), 8-1/2" (12.5 EMW w/MPD) ODSN-23i 7" Intermediate/ Infinite (9.8-10.2 EMWpw/MPD) 3219 12.5 ppg (FIT) 6-1/8" NOTE: All LOT/FIT will be taken with a minimum of 20-ft and a maximum of 50-ft of new hole drilled outside of the previous casing string Hydrogen Sulfide • The Oooguruk Drill Site is not designated as an H2S site, however Standard Operating - Procedures for H2S precautions should be followed at all times. Faults • Five seismic faults with an expected throw of 20-35' may be encountered around 8,150' to 12,170' MD. Losses may be associated with this fault. • Consult the ODS data sheet for additional information (still in development) Pioneer Natural Resources Last Revised: June 13th,2011 ODSN-22i Permit To Drill Page 12 of 12 Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-22i - Slot ODS-22 ODSN-22i IS14 Plan: ODSN-22i IS14 wp06 Standard Proposal Report 20 April, 2011 ‘111 HALLIBURTON Sperry Drilling Services —_ 0 E 0 ZUU N M V m to _O Aga, Y F !- H H H H d o _ Ac -----c c C fV _ �, m > > > > > > > s o 0 0 0 0'0'0.0.0'o cG o Ng' rn v 4 V V 4 V v (naaaaaaaD.aa a - 0 ozz H co CO CO CO CO CO O) c7 3 _ v ��pp p .y pp vo- .- a � boobb000 GG�N GO0. 01pM(Ap�NA911VVco ON1m VVVN m mNccoo�O�Om W N _0 O ZNinC Vm(OCOC W 1.-CDCOCDO)00���N F Wm n m mrnm 0(000 V , (o to to co co co N.t0 t0(o C 0� Z - I"' N ni M Q V V V V V V V V V V O U) ❑" mm000, m pNp AOt(fyy0,-,-0Opp pwoo Z 0 M 0 �^A U grog VNg1,-0m000DAOC93g woo O Oi0000000000 �\ ,Q O O mNN LL eo0NtV_06_0t`�R000C^^0000 d' 0 0 0 0 0 000 000 n Y 1 - 0 FFF2 app ~ ¶ N- N- O rro,-000(4) (00(0 co N , F —M N ococon0000e-.-Ol '�'C � O OmMMVmTn Nin m \\ ' N CO - m00040000000044p 00000004 pO O ZVm�nVrn�ODOMO / Z g0W000000o000000000gg0 NNNN,-N,-NNN 1 / M 0000000000 N yyqy 0 OONWNWOMMOMMOMMOc'MOMMOt'MMO < <o<oto WWWWWWW 0 Uo \\ �F - o C_P.Ra pa� AONoao�� yNVmnMm Ar Q O U--- _ -O 300A oaoa n�ODOOOm�NM�OM�NN m ~ N >^e. m OGOD7 f�71ffVAVOI f�ODmO 0tf>0 pt0�(V -d J Nr.-WW.-Vr-01 00 fO\ \/ G y J 8j O)Q70Nr-�n�� N • • --- p O1N NNfONOD)Oy VNt(pp 9NM _ _ + tR(if' CDnm MAS832AAOaDOQN F ��MV nNOfm-mO N \\ a3FiU I- f�/M(7 t?N,1N(VN� . 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C){p fOACf N d 2 `r0M-1:1 )OO I�OMNON OOO�Wq!-)I�OOa f�00 ^ N 2 E O Z00.-0,aw0�0iN rMN,,-.1100pp0�a0N.-v.0M yOQ; s pp O CD CO C W pppp NY;OR aWaW WA�r �Cf CfOO�F�N _- 8 i C Z 815)800 > N Nncooacoommpoo Om�OCAf.�pN OOpf�Np p��N��fOyV 1O(O Ci NOON 0000 N S -8 'sr) 0.-oir�0 OO 0 !� 00008800C 0 fO 00000000000 0 0 0 0 0 0 - O Cyd r'� -N) YY'� 0 �00000000MMI.-ani OtOi 0001),c1 0i,avv000 ---_._8 ��. c3>a H m'v 53 i..is, i i N N N oomn���va������������aavv H 11 GU�O..-C W Ef+11A r N NNNNN a F'wx Q 2,-to o o '0Vc• Z u00000000vvo oao ao Om m Cove o O O O Z c0000r�rnmoAo� 000gA• ngl�l�oAA _ O $ ¢ 0a,° °' 000 O D Gov u MNpNO���00pw�rnrnrn`a�� mrnrn�mao CD CII �Mp�V� V X00a pMpNO O 0p 0) W !i. OCQ G_ VCI�� 11 Q1 Q) Q�OOtCO.O��rOWM�tCO�C)OmONONDOCC.C')�a0pCC10 1 E00ONQ��w' 0 IC �CON0000000f00N0000000r0AN0000000�N-0 �� -- OCC U Q���[G 0`�� ^ 00 U)0 aDOOO�� NN�00NLLOY i�tAOAAaD Q �� 0�0 ot O4' O,-NM0NOAa000!0NMV10) -- 0 U)�NM01000AaD 01 NiNNNNN U Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk ND Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) • Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 Project Oooguruk Development Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site Oooguruk Drill Site Site Position: Northing: 6,031,151.32ft Latitude: 70°29'46.242 N From: Map Easting: 469,920.45ft Longitude: 150° 14'45.465 W Position Uncertainty: 0.00 ft Slot Radius: in Grid Convergence: -0.23? Well ODSN-22i-Slot ODS-22 Well Position +N/-S 0.00 ft Northing: 6,031,023.58 ft • Latitude: 70°29'44.980 N +EI-W 0.00 ft Easting: 469,793.67 ft . Longitude: 150°14'49.182 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 13.50ft • Wellbore ODSN-22i IS14 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (?) (?) (nT) I GRF200510 12/31/2009 21.99 80.81 57,759 Design ODSN-22i IS14 wp06 Audit Notes: Version: Phase: PLAN Tie On Depth: 42.70 Vertical Section: Depth From(ND) +NI-S +E/-W Direction (ft) (ft) (ft) (?) 42.70 0.00 0.00 177.44 4/20/2011 3:01:13PM Page 2 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +N/-S +E/-W Rate Rate Rate Tool Face (ft) (?) (?) (ft) ft (ft) (ft) (?/100ft) (?/100ft) (?/100ft) (?) 42.70 0.00 0.00 42.70 -13.50 0.00 0.00 0.00 0.00 0.00 0.00 300.00 0.00 0.00 300.00 243.80 0.00 0.00 0.00 0.00 0.00 0.00 550.00 5.00 260.00 549.68 493.48 -1.89 -10.74 2.00 2.00 0.00 260.00 891.68 15.00 275.00 885.79 829.59 -0.62 -69.61 3.00 2.93 4.39 22.11 1,727.02 31.70 276.09 1,650.00 1,593.80 32.34 -397.87 2.00 2.00 0.13 2.00 3,231.15 62.90 214.03 2,707.99 2,651.79 -519.96 -1,224.47 3.50 2.07 -4.13 -81.65 8,492.64 62.90 214.03 5,105.10 5,048.90 -4,401.63 -3,845.50 0.00 0.00 0.00 0.00 10,560.77 70.00 146.00 6,021.20 5,965.00 -6,143.75 -3,814.12 3.00 0.34 -3.29 -99.40 10,628.55 71.74 144.89 6,043.41 5,987.21 -6,196.49 -3,777.80 3.00 2.57 -1.64 -31.22 11,093.07 71.74 144.89 6,188.94 6,132.74 -6,557.36 -3,524.08 0.00 0.00 0.00 0.00 11,368.83 80.00 144.37 6,256.20 6,200.00 -6,775.23 -3,369.41 3.00 2.99 -0.19 -3.54 11,563.33 85.84 144.36 6,280.17 6,223.97 -6,932.03 -3,257.01 3.00 3.00 -0.01 -0.17 12,540.78 85.84 144.36 6,351.16 6,294.96 -7,724.27 -2,688.91 0.00 0.00 0.00 0.00 12,679.63 90.00 144.40 6,356.20 6,300.00 -7,837.03 -2,608.11 3.00 3.00 0.03 0.55 12,795.78 93.48 144.40 6,352.67 6,296.47 -7,931.41 -2,540.54 3.00 3.00 0.00 0.04 13,907.91 93.48 144.40 6,285.08 6,228.88 -8,834.00 -1,894.32 0.00 0.00 0.00 0.00 14,157.39 86.00 144.37 6,286.20 6,230.00 -9,036.67 -1,749.14 3.00 -3.00 -0.01 -179.81 14,198.88 84.76 144.37 6,289.54 6,233.34 -9,070.29 -1,725.05 3.00 -3.00 -0.02 -179.71 15,329.08 84.76 144.37 6,392.86 6,336.66 -9,985.04 -1,069.37 0.00 0.00 0.00 0.00 15,637.25 94.00 144.43 6,396.20 6,340.00 -10,235.31 -890.18 3.00 3.00 0.02 0.38 15,695.82 95.76 144.47 6,391.22 6,335.02 -10,282.79 -856.25 3.00 3.00 0.07 1.34 16,792.85 95.76 144.47 6,281.18 6,224.98 -11,171.06 -221.94 0.00 0.00 0.00 0.00 17,118.31 86.00 144.10 6,276.20 6,220.00 -11,434.96 -32.21 3.00 -3.00 -0.11 -177.83 17,176.18 87.74 144.10 6,279.36 6,223.16 -11,481.77 1.67 3.00 3.00 0.00 0.00 18,108.84 87.74 144.10 6,316.20 6,260.00 -12,236.69 548.11 0.00 0.00 0.00 0.00 4/20/2011 3:01:13PM Page 3 COMPASS 2003.16 Build 428 1 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) • Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True - Well: ODSN-22i Survey Calculation Method: Minimum Curvature • Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) -13.50 42.70 0.00 0.00 42.70 -13.50 0.00 0.00 6,031,023.58 469,793.67 0.00 0.00 100.00 0.00 0.00 100.00 43.80 0.00 0.00 6,031,023.58 469,793.67 0.00 0.00 200.00 0.00 0.00 200.00 143.80 0.00 0.00 6,031,023.58 469,793.67 0.00 0.00 300.00 0.00 0.00 300.00 243.80 0.00 0.00 6,031,023.58 469,793.67 0.00 0.00 Start Dir 2°/100':300'MD,300'TVD:260°RT TF 400.00 2.00 260.00 399.98 343.78 -0.30 -1.72 6,031,023.29 469,791.95 2.00 0.23 500.00 4.00 260.00 499.84 443.64 -1.21 -6.87 6,031,022.40 469,786.79 2.00 0.90 550.00 5.00 260.00 549.68 493.48 -1.89 -10.74 6,031,021.73 469,782.93 2.00 1.41 Start Dir 3°/100':550'MD,549.68'TVD 600.00 6.41 265.06 599.43 543.23 -2.51 -15.67 6,031,021.13 469,777.99 3.00 1.81 700.00 9.32 270.50 698.48 642.28 -2.92 -29.34 6,031,020.78 469,764.33 3.00 1.61 800.00 12.28 273.36 796.70 740.50 -2.23 -48.05 6,031,021.55 469,745.61 3.00 0.07 891.68 15.00 275.00 885.79 829.59 -0.62 -69.61 6,031,023.24 469,724.07 3.00 -2.49 Start Dir 2°/100':891.68'MD,885.79'TVD 900.00 15.17 275.02 893.82 837.62 -0.43 -71.76 6,031,023.44 469,721.91 2.00 -2.78 1,000.00 17.17 275.26 989.86 933.66 2.07 -99.49 6,031,026.05 469,694.20 2.00 -6.51 1,100.00 19.16 275.44 1,084.87 1,028.67 4.98 -130.53 6,031,029.09 469,663.18 2.00 -10.81 1,200.00 21.16 275.59 1,178.74 1,122.54 8.29 -164.84 6,031,032.54 469,628.88 2.00 -15.66 1,300.00 23.16 275.72 1,271.35 1,215.15 12.01 -202.38 6,031,036.42 469,591.36 2.00 -21.06 1,400.00 25.16 275.83 1,362.58 1,306.38 16.13 -243.10 6,031,040.70 469,550.66 2.00 -26.99 1,500.00 27.16 275.92 1,452.33 1,396.13 20.65 -286.96 6,031,045.39 469,506.83 2.00 -33.47 1,600.00 29.16 276.00 1,540.49 1,484.29 25.55 -333.90 6,031,050.49 469,459.91 2.00 -40.47 1,700.00 31.16 276.08 1,626.95 1,570.75 30.84 -383.86 6,031,055.98 469,409.98 2.00 -47.99 1,727.02 31.70 276.09 1,650.00 1,593.80 32.34 -397.87 6,031,057.53 469,395.98 2.00 -50.11 Start Dir 3.5°/100':1727.02'MD,1650'TVD 1,800.00 32.16 271.34 1,711.95 1,655.75 34.83 -436.36 6,031,060.18 469,357.50 3.50 -54.32 1,900.00 33.07 265.07 1,796.20 1,740.00 33.10 -490.17 6,031,058.67 469,303.69 3.50 -55.00 2,000.00 34.28 259.14 1,879.44 1,823.24 25.45 -545.02 6,031,051.24 469,248.81 3.50 -49.81 2,100.00 35.75 253.60 1,961.37 1,905.17 11.90 -600.72 6,031,037.92 469,193.07 3.50 -38.76 2,200.00 37.46 248.48 2,041.66 1,985.46 -7.51 -657.05 6,031,018.74 469,136.66 3.50 -21.90 2,300.00 39.37 243.76 2,120.03 2,063.83 -32.70 -713.80 6,030,993.79 469,079.81 3.50 0.73 2,400.00 41.46 239.43 2,196.17 2,139.97 -63.57 -770.77 6,030,963.15 469,022.72 3.50 29.02 2,500.00 43.70 235.45 2,269.82 2,213.62 -100.01 -827.74 6,030,926.94 468,965.61 3.50 62.87 2,542.09 44.68 233.87 2,300.00 2,243.80 -116.98 -851.67 6,030,910.07 468,941.62 3.50 78.76 Top West Sac 2,600.00 46.06 231.79 2,340.68 2,284.48 -141.89 -884.50 6,030,885.30 468,908.69 3.50 102.17 2,700.00 48.53 228.42 2,408.51 2,352.31 -189.04 -940.83 6,030,838.38 468,852.17 3.50 146.75 2,800.00 51.10 225.30 2,473.04 2,416.84 -241.29 -996.53 6,030,786.36 468,796.27 3.50 196.46 2,900.00 53.74 222.40 2,534.03 2,477.83 -298.46 -1,051.39 6,030,729.43 468,741.19 3.50 251.11 3,000.00 56.44 219.69 2,591.26 2,535.06 -360.31 -1,105.19 6,030,667.80 468,687.13 3.50 310.50 3,100.00 59.21 217.15 2,644.51 2,588.31 -426.63 -1,157.76 6,030,601.70 468,634.31 3.50 374.40 3,200.00 62.01 214.75 2,693.59 2,637.39 -497.17 -1,208.88 6,030,531.38 468,582.91 3.50 442.58 3,231.15 62.90 214.03 2,707.99 2,651.79 -519.96 -1,224.48 6,030,508.65 468,567.22 3.50 464.65 End Dir:3231.15'MD,2707.99'TVD 3,300.00 62.90 214.03 2,739.36 2,683.16 -570.75 -1,258.77 6,030,458.00 468,532.72 0.00 513.86 4/20/2011 3:01:13PM Page 4 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 rvo Planned Survey of n Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Veil Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 2,728.72 3,400.00 62.90 214.03 2,784.92 2,728.72 -644.53 -1,308.59 6,030,384.44 468,482.61 0.00 585.33 3,500.00 62.90 214.03 2,830.48 2,774.28 -718.31 -1,358.40 6,030,310.87 468,432.50 0.00 656.80 3,600.00 62.90 214.03 2,876.04 2,819.84 -792.08 -1,408.22 6,030,237.31 468,382.39 0.00 728.27 3,698.69 62.90 214.03 2,921.00 2,864.80 -864.89 -1,457.38 6,030,164.71 468,332.93 0.00 798.81 Tuffacious Shales 3,700.00 62.90 214.03 2,921.60 2,865.40 -865.86 -1,458.03 6,030,163.74 468,332.28 0.00 799.75 3,800.00 62.90 214.03 2,967.16 2,910.96 -939.63 -1,507.85 6,030,090.18 468,282.17 0.00 871.22 3,900.00 62.90 214.03 3,012.72 2,956.52 -1,013.41 -1,557.66 6,030,016.61 468,232.06 0.00 942.69 4,000.00 62.90 214.03 3,058.28 3,002.08 -1,087.18 -1,607.48 6,029,943.05 468,181.95 0.00 1,014.16 4,100.00 62.90 214.03 3,103.83 3,047.63 -1,160.96 -1,657.30 6,029,869.48 468,131.84 0.00 1,085.64 4,200.00 62.90 214.03 3,149.39 3,093.19 -1,234.73 -1,707.11 6,029,795.92 468,081.73 0.00 1,157.11 4,300.00 62.90 214.03 3,194.95 3,138.75 -1,308.51 -1,756.93 6,029,722.36 468,031.62 0.00 1,228.58 4,400.00 62.90 214.03 3,240.51 3,184.31 -1,382.28 -1,806.74 6,029,648.79 467,981.51 0.00 1,300.05 4,423.02 62.90 214.03 3,251.00 3,194.80 -1,399.26 -1,818.21 6,029,631.86 467,969.98 0.00 1,316.50 11 3/4" 4,500.00 62.90 214.03 3,286.07 3,229.87 -1,456.06 -1,856.56 6,029,575.23 467,931.40 0.00 1,371.52 4,600.00 62.90 214.03 3,331.63 3,275.43 -1,529.83 -1,906.37 6,029,501.66 467,881.29 0.00 1,443.00 4,700.00 62.90 214.03 3,377.19 3,320.99 -1,603.61 -1,956.19 6,029,428.10 467,831.18 0.00 1,514.47 4,800.00 62.90 214.03 3,422.75 3,366.55 -1,677.38 -2,006.00 6,029,354.53 467,781.07 0.00 1,585.94 4,900.00 62.90 214.03 3,468.31 3,412.11 -1,751.16 -2,055.82 6,029,280.97 467,730.96 0.00 1,657.41 5,000.00 62.90 214.03 3,513.87 3,457.67 -1,824.93 -2,105.63 6,029,207.40 467,680.85 0.00 1,728.88 5,100.00 62.90 214.03 3,559.43 3,503.23 -1,898.71 -2,155.45 6,029,133.84 467,630.74 0.00 1,800.36 5,200.00 62.90 214.03 3,604.99 3,548.79 -1,972.48 -2,205.26 6,029,060.27 467,580.63 0.00 1,871.83 5,300.00 62.90 214.03 3,650.55 3,594.35 -2,046.26 -2,255.08 6,028,986.71 467,530.52 0.00 1,943.30 5,400.00 62.90 214.03 3,696.11 3,639.91 -2,120.03 -2,304.89 6,028,913.14 467,480.41 0.00 2,014.77 5,500.00 62.90 214.03 3,741.67 3,685.47 -2,193.81 -2,354.71 6,028,839.58 467,430.30 0.00 2,086.25 5,600.00 62.90 214.03 3,787.23 3,731.03 -2,267.58 -2,404.52 6,028,766.01 467,380.19 0.00 2,157.72 5,700.00 62.90 214.03 3,832.79 3,776.59 -2,341.36 -2,454.34 6,028,692.45 467,330.09 0.00 2,229.19 5,800.00 62.90 214.03 3,878.35 3,822.15 -2,415.13 -2,504.15 6,028,618.88 467,279.98 0.00 2,300.66 5,900.00 62.90 214.03 3,923.91 3,867.71 -2,488.91 -2,553.97 6,028,545.32 467,229.87 0.00 2,372.13 6,000.00 62.90 214.03 3,969.46 3,913.26 -2,562.68 -2,603.79 6,028,471.76 467,179.76 0.00 2,443.61 6,100.00 62.90 214.03 4,015.02 3,958.82 -2,636.46 -2,653.60 6,028,398.19 467,129.65 0.00 2,515.08 6,200.00 62.90 214.03 4,060.58 4,004.38 -2,710.23 -2,703.42 6,028,324.63 467,079.54 0.00 2,586.55 6,300.00 62.90 214.03 4,106.14 4,049.94 -2,784.01 -2,753.23 6,028,251.06 467,029.43 0.00 2,658.02 6,400.00 62.90 214.03 4,151.70 4,095.50 -2,857.78 -2,803.05 6,028,177.50 466,979.32 0.00 2,729.49 6,500.00 62.90 214.03 4,197.26 4,141.06 -2,931.56 -2,852.86 6,028,103.93 466,929.21 0.00 2,800.97 6,600.00 62.90 214.03 4,242.82 4,186.62 -3,005.34 -2,902.68 6,028,030.37 466,879.10 0.00 2,872.44 6,646.49 62.90 214.03 4,264.00 4,207.80 -3,039.63 -2,925.83 6,027,996.17 466,855.81 0.00 2,905.66 11 Brook 2B 6,700.00 62.90 214.03 4,288.38 4,232.18 -3,079.11 -2,952.49 6,027,956.80 466,828.99 0.00 2,943.91 6,800.00 62.90 214.03 4,333.94 4,277.74 -3,152.89 -3,002.31 6,027,883.24 466,778.88 0.00 3,015.38 6,900.00 62.90 214.03 4,379.50 4,323.30 -3,226.66 -3,052.12 6,027,809.67 466,728.77 0.00 3,086.86 7,000.00 62.90 214.03 4,425.06 4,368.86 -3,300.44 -3,101.94 6,027,736.11 466,678.66 0.00 3,158.33 7,100.00 62.90 214.03 4,470.62 4,414.42 -3,374.21 -3,151.75 6,027,662.54 466,628.55 0.00 3,229.80 7,200.00 62.90 214.03 4,516.18 4,459.98 -3,447.99 -3,201.57 6,027,588.98 466,578.44 0.00 3,301.27 4/20/2011 3:01:13PM Page 5 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i 1514 wp06 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Veil Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 4,505.54 7,300.00 62.90 214.03 4,561.74 4,505.54 -3,521.76 -3,251.38 6,027,515.41 466,528.33 0.00 3,372.74 7,400.00 62.90 214.03 4,607.30 4,551.10 -3,595.54 -3,301.20 6,027,441.85 466,478.22 0.00 3,444.22 7,500.00 62.90 214.03 4,652.86 4,596.66 -3,669.31 -3,351.01 6,027,368.28 466,428.11 0.00 3,515.69 7,600.00 62.90 214.03 4,698.42 4,642.22 -3,743.09 -3,400.83 6,027,294.72 466,378.00 0.00 3,587.16 7,700.00 62.90 214.03 4,743.98 4,687.78 -3,816.86 -3,450.64 6,027,221.16 466,327.89 0.00 3,658.63 7,800.00 62.90 214.03 4,789.53 4,733.33 -3,890.64 -3,500.46 6,027,147.59 466,277.78 0.00 3,730.10 1 7,900.00 62.90 214.03 4,835.09 4,778.89 -3,964.41 -3,550.28 6,027,074.03 466,227.67 0.00 3,801.58 8,000.00 62.90 214.03 4,880.65 4,824.45 -4,038.19 -3,600.09 6,027,000.46 466,177.56 0.00 3,873.05 8,100.00 62.90 214.03 4,926.21 4,870.01 -4,111.96 -3,649.91 6,026,926.90 466,127.46 0.00 3,944.52 8,200.00 62.90 214.03 4,971.77 4,915.57 -4,185.74 -3,699.72 6,026,853.33 466,077.35 0.00 4,015.99 8,300.00 62.90 214.03 5,017.33 4,961.13 -4,259.51 -3,749.54 6,026,779.77 466,027.24 0.00 4,087.47 8,303.66 62.90 214.03 5,019.00 4,962.80 -4,262.21 -3,751.36 6,026,777.07 466,025.40 0.00 4,090.08 Torok Ss 1 8,400.00 62.90 214.03 5,062.89 5,006.69 -4,333.29 -3,799.35 6,026,706.20 465,977.13 0.00 4,158.94 8,492.64 62.90 214.03 5,105.10 5,048.90 -4,401.63 -3,845.50 6,026,638.05 465,930.70 0.00 4,225.15 Start Dir 3°/100':8492.64'MD,5105.1'TVD 8,500.00 62.86 213.78 5,108.45 5,052.25 -4,407.07 -3,849.15 6,026,632.63 465,927.03 3.00 4,230.42 8,600.00 62.42 210.44 5,154.42 5,098.22 -4,482.28 -3,896.36 6,026,557.62 465,879.52 3.00 4,303.44 8,700.00 62.05 207.08 5,201.02 5,144.82 -4,559.83 -3,938.93 6,026,480.25 465,836.64 3.00 4,379.01 8,800.00 61.77 203.69 5,248.11 5,191.91 -4,639.51 -3,976.75 6,026,400.73 465,798.51 3.00 4,456.92 8,854.62 61.65 201.84 5,274.00 5,217.80 -4,683.86 -3,995.35 6,026,356.47 465,779.72 3.00 4,500.39 Base Torok Sand 8,900.00 61.57 200.29 5,295.58 5,239.38 -4,721.12 -4,009.70 6,026,319.27 465,765.22 3.00 4,536.96 9,000.00 61.46 196.88 5,343.28 5,287.08 -4,804.41 -4,037.71 6,026,236.10 465,736.88 3.00 4,618.92 9,037.07 61.44 195.61 5,361.00 5,304.80 -4,835.67 -4,046.82 6,026,204.88 465,727.64 3.00 4,649.74 9 5/8" 9,100.00 61.43 193.46 5,391.09 5,334.89 -4,889.16 -4,060.70 6,026,151.45 465,713.55 3.00 4,702.56 9,200.00 61.49 190.05 5,438.88 5,382.68 -4,975.15 -4,078.59 6,026,065.55 465,695.31 3.00 4,787.66 9,300.00 61.63 186.64 5,486.52 5,430.32 -5,062.13 -4,091.35 6,025,978.62 465,682.20 3.00 4,873.99 9,400.00 61.86 183.25 5,533.87 5,477.67 -5,149.87 -4,098.94 6,025,890.93 465,674.25 3.00 4,961.30 9,500.00 62.17 179.87 5,580.80 5,524.60 -5,238.13 -4,101.33 6,025,802.69 465,671.50 3.00 5,049.36 9,600.00 62.56 176.51 5,627.20 5,571.00 -5,326.66 -4,098.53 6,025,714.16 465,673.95 3.00 5,137.92 9,700.00 63.03 173.18 5,672.92 5,616.72 -5,415.22 -4,090.53 6,025,625.58 465,681.58 3.00 5,226.75 9,800.00 63.58 169.88 5,717.85 5,661.65 -5,503.57 -4,077.37 6,025,537.18 465,694.39 3.00 5,315.60 9,900.00 64.21 166.61 5,761.86 5,705.66 -5,591.46 -4,059.07 6,025,449.22 465,712.33 3.00 5,404.23 9,958.20 64.60 164.72 5,787.00 5,730.80 -5,642.31 -4,046.07 6,025,398.32 465,725.11 3.00 5,455.61 Top HRZ 10,000.00 64.90 163.38 5,804.83 5,748.63 -5,678.67 -4,035.68 6,025,361.93 465,735.35 3.00 5,492.39 10,100.00 65.67 160.19 5,846.64 5,790.44 -5,764.94 -4,007.28 6,025,275.55 465,763.40 3.00 5,579.85 10,200.00 66.50 157.03 5,887.19 5,830.99 -5,850.04 -3,973.94 6,025,190.33 465,796.40 3.00 5,666.36 10,255.24 66.99 155.31 5,909.00 5,852.80 -5,896.46 -3,953.43 6,025,143.82 465,816.71 3.00 5,713.65 Base HRZ 10,300.00 67.40 153.92 5,926.35 5,870.15 -5,933.74 -3,935.74 6,025,106.48 465,834.25 3.00 5,751.68 10,375.68 68.11 151.59 5,955.00 5,898.80 -5,996.00 -3,903.68 6,025,044.09 465,866.06 3.00 5,815.32 Kalubik Marker 4/20/2011 3:01:13PM Page 6 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk ND Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (?) (7) (ft) ft (ft) (ft) (ft) (ft) 5,907.82 10,400.00 68.35 150.85 5,964.02 5,907.82 -6,015.80 -3,892.80 6,025,024.25 465,876.85 3.00 5,835.58 10,500.00 69.36 147.82 6,000.10 5,943.90 -6,096.01 -3,845.23 6,024,943.86 465,924.09 3.00 5,917.84 10,548.52 69.87 146.37 6,017.00 5,960.80 -6,134.20 -3,820.52 6,024,905.58 465,948.64 3.00 5,957.09 Top Kuparuk C 10,560.77 70.00 146.00 6,021.20 5,965.00 -6,143.75 -3,814.12 6,024,896.00 465,955.00 3.00 5,966.92 1S14 V1 Kup 10,600.00 71.01 145.35 6,034.29 5,978.09 -6,174.29 -3,793.27 6,024,865.37 465,975.73 3.00 5,998.37 10,605.26 71.14 145.27 6,036.00 5,979.80 -6,178.38 -3,790.44 6,024,861.27 465,978.54 3.00 6,002.58 Base Kuparuk(LCU) 10,628.55 71.74 144.89 6,043.41 5,987.21 -6,196.49 -3,777.80 6,024,843.12 465,991.11 3.00 6,021.24 End Dir: 10628.55'MD,6043.41'ND 10,700.00 71.74 144.89 6,065.80 6,009.60 -6,251.99 -3,738.77 6,024,787.46 466,029.90 0.00 6,078.43 10,800.00 71.74 144.89 6,097.13 6,040.93 -6,329.68 -3,684.15 6,024,709.56 466,084.20 0.00 6,158.49 10,900.00 71.74 144.89 6,128.46 6,072.26 -6,407.37 -3,629.54 6,024,631.66 466,138.50 0.00 6,238.54 10,943.23 71.74 144.89 6,142.00 6,085.80 -6,440.96 -3,605.92 6,024,597.98 466,161.97 0.00 6,273.15 BCU 11,000.00 71.74 144.89 6,159.78 6,103.58 -6,485.06 -3,574.92 6,024,553.76 466,192.79 0.00 6,318.59 11,093.07 71.74 144.89 6,188.94 6,132.74 -6,557.36 -3,524.08 6,024,481.26 466,243.33 0.00 6,393.10 Start Dir 3°/100':11093.07'MD,6188.94'TVD 11,100.00 71.95 144.88 6,191.10 6,134.90 -6,562.74 -3,520.29 6,024,475.86 466,247.09 3.00 6,398.65 11,116.01 72.43 144.85 6,196.00 6,139.80 -6,575.21 -3,511.52 6,024,463.35 466,255.82 3.00 6,411.50 Top Nuiqsut 11,126.04 72.73 144.83 6,199.00 6,142.80 -6,583.03 -3,506.01 6,024,455.52 466,261.29 3.00 6,419.55 I 7" 11,200.00 74.94 144.69 6,219.59 6,163.39 -6,641.04 -3,465.02 6,024,397.34 466,302.05 3.00 6,479.34 11,205.32 75.10 144.68 6,220.96 6,164.76 -6,645.24 -3,462.05 6,024,393.13 466,305.00 3.00 6,483.67 1S14 V1 T1 11,300.00 77.94 144.50 6,243.03 6,186.83 -6,720.27 -3,408.70 6,024,317.90 466,358.04 3.00 6,561.01 11,368.83 80.00 144.37 6,256.20 6,200.00 -6,775.23 -3,369.41 6,024,262.78 466,397.10 3.00 6,617.67 11,400.00 80.93 144.37 6,261.36 6,205.16 -6,800.21 -3,351.51 6,024,237.73 466,414.90 3.00 6,643.43 11,500.00 83.93 144.36 6,274.52 6,218.32 -6,880.77 -3,293.76 6,024,156.95 466,472.31 3.00 6,726.49 11,563.33 85.84 144.36 6,280.17 6,223.97 -6,932.03 -3,257.01 6,024,105.54 466,508.85 3.00 6,779.34 End Dir:11563.33'MD,6280.17'ND 11,600.00 85.84 144.36 6,282.83 6,226.63 -6,961.75 -3,235.69 6,024,075.74 466,530.04 0.00 6,809.99 11,700.00 85.84 144.36 6,290.10 6,233.90 -7,042.80 -3,177.57 6,023,994.46 466,587.83 0.00 6,893.56 11,800.00 85.84 144.36 6,297.36 6,241.16 -7,123.85 -3,119.45 6,023,913.18 466,645.61 0.00 6,977.13 11,900.00 85.84 144.36 6,304.62 6,248.42 -7,204.90 -3,061.33 6,023,831.90 466,703.40 0.00 7,060.70 12,000.00 85.84 144.36 6,311.88 6,255.68 -7,285.96 -3,003.21 6,023,750.62 466,761.18 0.00 7,144.27 12,100.00 85.84 144.36 6,319.14 6,262.94 -7,367.01 -2,945.09 6,023,669.34 466,818.96 0.00 7,227.84 12,200.00 85.84 144.36 6,326.41 6,270.21 -7,448.06 -2,886.97 6,023,588.06 466,876.75 0.00 7,311.42 12,300.00 85.84 144.36 6,333.67 6,277.47 -7,529.11 -2,828.85 6,023,506.79 466,934.53 0.00 7,394.99 12,400.00 85.84 144.36 6,340.93 6,284.73 -7,610.16 -2,770.74 6,023,425.51 466,992.32 0.00 7,478.56 12,500.00 85.84 144.36 6,348.19 6,291.99 -7,691.21 -2,712.62 6,023,344.23 467,050.10 0.00 7,562.13 12,540.78 85.84 144.36 6,351.16 6,294.96 -7,724.27 -2,688.91 6,023,311.08 467,073.66 0.00 7,596.21 Start Dir 3°1100':12540.78'MD,6351.16'TVD 4/20/2011 3:01:13PM Page 7 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i 1S14 Design: ODSN-22i 1S14 wp06 Planned Survey Measured Vertical Map Map' Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 6,298.34 12,600.00 87.61 144.37 6,354.54 6,298.34 -7,772.32 -2,654.47 6,023,262.90 467,107.91 3.00 7,645.75 12,679.63 90.00 144.40 6,356.20 6,300.00 -7,837.03 -2,608.11 6,023,198.00 467,154.00 3.00 7,712.48 1514 V1 T2 12,700.00 90.61 144.40 6,356.09 6,299.89 -7,853.60 -2,596.25 6,023,181.39 467,165.79 3.00 7,729.55 12,795.78 93.48 144.40 6,352.67 6,296.47 -7,931.41 -2,540.54 6,023,103.35 467,221.19 3.00 7,809.79 End Dir:12795.78'MD,6352.67'TVD 12,800.00 93.48 144.40 6,352.41 6,296.21 -7,934.84 -2,538.08 6,023,099.92 467,223.62 0.00 7,813.32 12,900.00 93.48 144.40 6,346.34 6,290.14 -8,016.00 -2,479.98 6,023,018.53 467,281.39 0.00 7,897.00 13,000.00 93.48 144.40 6,340.26 6,284.06 -8,097.16 -2,421.87 6,022,937.15 467,339.16 0.00 7,980.67 13,100.00 93.48 144.40 6,334.18 6,277.98 -8,178.31 -2,363.76 6,022,855.76 467,396.93 0.00 8,064.35 13,200.00 93.48 144.40 6,328.10 6,271.90 -8,259.47 -2,305.66 6,022,774.38 467,454.70 0.00 8,148.03 13,300.00 93.48 144.40 6,322.02 6,265.82 -8,340.63 -2,247.55 6,022,692.99 467,512.48 0.00 8,231.71 13,400.00 93.48 144.40 6,315.95 6,259.75 -8,421.79 -2,189.44 6,022,611.61 467,570.25 0.00 8,315.38 13,500.00 93.48 144.40 6,309.87 6,253.67 -8,502.95 -2,131.34 6,022,530.22 467,628.02 0.00 8,399.06 13,600.00 93.48 144.40 6,303.79 6,247.59 -8,584.11 -2,073.23 6,022,448.83 467,685.79 0.00 8,482.74 13,700.00 93.48 144.40 6,297.71 6,241.51 -8,665.27 -2,015.12 6,022,367.45 467,743.56 0.00 8,566.42 13,800.00 93.48 144.40 6,291.64 6,235.44 -8,746.42 -1,957.02 6,022,286.06 467,801.33 0.00 8,650.09 13,900.00 93.48 144.40 6,285.56 6,229.36 -8,827.58 -1,898.91 6,022,204.68 467,859.10 0.00 8,733.77 13,907.91 93.48 144.40 6,285.08 6,228.88 -8,834.00 -1,894.32 6,022,198.24 467,863.67 0.00 8,740.39 Start Dir 3°/100':13907.91'MD,6285.08'TVD j 14,000.00 90.72 144.39 6,281.70 6,225.50 -8,908.82 -1,840.74 6,022,123.22 467,916.93 3.00 8,817.53 14,100.00 87.72 144.38 6,283.06 6,226.86 -8,990.09 -1,782.52 6,022,041.71 467,974.82 3.00 8,901.33 14,157.39 86.00 144.37 6,286.20 6,230.00 -9,036.67 -1,749.14 6,021,995.00 468,008.00 3.00 8,949.35 1514 V1 T3 14,198.88 84.76 144.37 6,289.54 6,233.34 -9,070.29 -1,725.05 6,021,961.29 468,031.95 3.00 8,984.01 End Dir:14198.88'MD,6289.54'TVD 14,200.00 84.76 144.37 6,289.65 6,233.45 -9,071.19 -1,724.40 6,021,960.38 468,032.60 0.01 8,984.95 14,300.00 84.76 144.37 6,298.79 6,242.59 -9,152.13 -1,666.39 6,021,879.22 468,090.28 0.00 9,068.40 14,400.00 84.76 144.37 6,307.93 6,251.73 -9,233.07 -1,608.38 6,021,798.06 468,147.95 0.00 9,151.85 14,500.00 84.76 144.37 6,317.07 6,260.87 -9,314.00 -1,550.36 6,021,716.89 468,205.63 0.00 9,235.30 14,600.00 84.76 144.37 6,326.21 6,270.01 -9,394.94 -1,492.35 6,021,635.73 468,263.31 0.00 9,318.75 14,700.00 84.76 144.37 6,335.35 6,279.15 -9,475.88 -1,434.33 6,021,554.57 468,320.99 0.00 9,402.20 14,800.00 84.76 144.37 6,344.49 6,288.29 -9,556.81 -1,376.32 6,021,473.40 468,378.67 0.00 9,485.66 14,900.00 84.76 144.37 6,353.63 6,297.43 -9,637.75 -1,318.30 6,021,392.24 468,436.35 0.00 9,569.11 15,000.00 84.76 144.37 6,362.77 6,306.57 -9,718.69 -1,260.29 6,021,311.07 468,494.03 0.00 9,652.56 15,100.00 84.76 144.37 6,371.92 6,315.72 -9,799.62 -1,202.28 6,021,229.91 468,551.71 0.00 9,736.01 15,200.00 84.76 144.37 6,381.06 6,324.86 -9,880.56 -1,144.26 6,021,148.75 468,609.39 0.00 9,819.46 15,300.00 84.76 144.37 6,390.20 6,334.00 -9,961.50 -1,086.25 6,021,067.58 468,667.07 0.00 9,902.92 15,329.08 84.76 144.37 6,392.86 6,336.66 -9,985.03 -1,069.38 6,021,043.98 468,683.84 0.00 9,927.18 Start Dir 3°/100':15329.08'MD,6392.86'TVD 15,400.00 86.88 144.38 6,398.03 6,341.83 -10,042.52 -1,028.18 6,020,986.33 468,724.80 3.00 9,986.46 15,500.00 89.88 144.40 6,400.85 6,344.65 -10,123.78 -969.98 6,020,904.84 468,782.66 3.00 10,070.24 15,600.00 92.88 144.42 6,398.44 6,342.24 -10,205.07 -911.81 6,020,823.33 468,840.49 3.00 10,154.05 15,637.25 94.00 144.43 6,396.20 6,340.00 -10,235.31 -890.18 6,020,793.00 468,862.00 3.00 10,185.23 1S14 V1 T4 1 4/20/2011 3:01:13PM Page 8 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +EJ-W Northing Easting DLS Vert Section (ft) (?) (?) (ft) ft (ft) (ft) (ft) (ft) 6,335.02 15,695.82 95.76 144.47 6,391.22 6,335.02 -10,282.79 -856.25 6,020,745.39 468,895.73 3.00 10,234.18 End Dir:15695.82'MD,6391.22'ND 15,700.00 95.76 144.47 6,390.80 6,334.60 -10,286.18 -853.83 6,020,742.00 468,898.14 0.00 10,237.67 15,800.00 95.76 144.47 6,380.77 6,324.57 -10,367.15 -796.01 6,020,660.80 468,955.62 0.00 10,321.15 15,900.00 95.76 144.47 6,370.74 6,314.54 -10,448.12 -738.19 6,020,579.60 469,013.11 0.00 10,404.62 16,000.00 95.76 144.47 6,360.71 6,304.51 -10,529.09 -680.37 6,020,498.41 469,070.59 0.00 10,488.10 16,100.00 95.76 144.47 6,350.68 6,294.48 -10,610.06 -622.55 6,020,417.21 469,128.08 0.00 10,571.58 16,200.00 95.76 144.47 6,340.65 6,284.45 -10,691.03 -564.73 6,020,336.01 469,185.56 0.00 10,655.05 16,300.00 95.76 144.47 6,330.62 6,274.42 -10,772.00 -506.91 6,020,254.82 469,243.05 0.00 10,738.53 16,400.00 95.76 144.47 6,320.59 6,264.39 -10,852.97 -449.09 6,020,173.62 469,300.53 0.00 10,822.01 16,500.00 95.76 144.47 6,310.56 6,254.36 -10,933.94 -391.27 6,020,092.42 469,358.02 0.00 10,905.48 16,600.00 95.76 144.47 6,300.53 6,244.33 -11,014.91 -333.45 6,020,011.23 469,415.50 0.00 10,988.96 16,700.00 95.76 144.47 6,290.50 6,234.30 -11,095.88 -275.63 6,019,930.03 469,472.99 0.00 11,072.44 16,792.85 95.76 144.47 6,281.18 6,224.98 -11,171.06 -221.94 6,019,854.64 469,526.36 0.00 11,149.94 Start Dir 3°/100':16792.85'MD,6281.18'TVD 16,800.00 95.54 144.46 6,280.48 6,224.28 -11,176.85 -217.81 6,019,848.83 469,530.47 3.00 11,155.91 16,900.00 92.54 144.35 6,273.43 6,217.23 -11,257.96 -159.75 6,019,767.50 469,588.19 3.00 11,239.53 17,000.00 89.55 144.24 6,271.60 6,215.40 -11,339.13 -101.40 6,019,686.10 469,646.20 3.00 11,323.24 17,100.00 86.55 144.12 6,275.01 6,218.81 -11,420.16 -42.92 6,019,604.84 469,704.35 3.00 11,406.80 17,118.31 86.00 144.10 6,276.20 6,220.00 -11,434.96 -32.21 6,019,590.00 469,715.00 3.00 11,422.07 IS14 V1 T5 17,176.18 87.74 144.10 6,279.36 6,223.16 -11,481.77 1.67 6,019,543.06 469,748.69 3.00 11,470.35 End Dir:17176.18'MD,6279.36'ND 17,200.00 87.74 144.10 6,280.30 6,224.10 -11,501.05 15.63 6,019,523.72 469,762.57 0.00 11,490.23 17,300.00 87.74 144.10 6,284.25 6,228.05 -11,581.99 74.22 6,019,442.55 469,820.82 0.00 11,573.71 17,400.00 87.74 144.10 6,288.20 6,232.00 -11,662.94 132.81 6,019,361.38 469,879.07 0.00 11,657.20 17,500.00 87.74 144.10 6,292.15 6,235.95 -11,743.88 191.39 6,019,280.21 469,937.33 0.00 11,740.68 17,600.00 87.74 144.10 6,296.10 6,239.90 -11,824.82 249.98 6,019,199.03 469,995.58 0.00 11,824.16 17,700.00 87.74 144.10 6,300.05 6,243.85 -11,905.76 308.57 6,019,117.86 470,053.83 0.00 11,907.65 17,800.00 87.74 144.10 6,304.00 6,247.80 -11,986.71 367.16 6,019,036.69 470,112.09 0.00 11,991.13 17,900.00 87.74 144.10 6,307.95 6,251.75 -12,067.65 425.75 6,018,955.52 470,170.34 0.00 12,074.61 18,000.00 87.74 144.10 6,311.90 6,255.70 -12,148.59 484.34 6,018,874.35 470,228.60 0.00 12,158.10 18,100.00 87.74 144.10 6,315.85 6,259.65 -12,229.53 542.93 6,018,793.18 470,286.85 0.00 12,241.58 18,108.83 87.74 144.10 6,316.20 6,260.00 -12,236.68 548.10 6,018,786.01 470,291.99 0.00 12,248.95 41/2" • 18,108.84 87.74 144.10 6,316.20 . 6,260.00 -12,236.69 548.11 6,018,786.00 470,292.00 0.01 12,248.96 Total Depth 18108.84'MD,6316.2'ND-IS14 V1 T6 • 4/20/2011 3:01:13PM Page 9 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTON Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i 1514 Design: ODSN-22i 1514 wp06 Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +N/-S +E/-W Northing Easting -Shape (?) (?) (ft) (ft) (ft) (ft) (ft) 1S14 V1 T2 0.00 0.00 6,356.20 -7,837.03 -2,608.11 6,023,198.00 467,154.00 -plan hits target -Point Black 1 Fault KupB 0.00 0.00 6,179.50 -4,650.89 -2,043.97 6,026,381.50 467,731.03 -plan misses by 2100.43ft at 8268.58ft MD(5003.02 TVD,-4236.34 N,-3733.89 E) -Polygon Point 1 6,179.50 -4,650.89 -2,043.97 6,026,381.50 467,731.03 Point 2 6,179.50 -4,211.79 -2,274.57 6,026,821.49 467,502.24 Point 3 6,179.50 -3,772.99 -2,597.07 6,027,261.55 467,181.56 Point 4 6,179.50 -2,896.09 -3,373.47 6,028,141.51 466,408.81 Point 5 6,179.50 -2,238.99 -4,113.97 6,028,801.55 465,671.06 Point6 6,179.50 -1,581.29 -4,808.17 6,029,462.00 464,979.60 Point 7 6,179.50 -924.49 -5,621.67 6,030,122.03 464,168.86 Point 8 6,179.50 -268.39 -6,607.47 6,030,782.06 463,185.84 Point 9 6,179.50 169.61 -7,097.27 6,031,222.01 462,697.87 Point 10 6,179.50 608.31 -7,427.37 6,031,662.00 462,369.59 Point 11 6,179.50 1,486.61 -7,893.97 6,032,542.10 461,906.61 Point 12 6,179.50 1,925.91 -8,075.47 6,032,982.09 461,726.91 Point 13 6,179.50 2,584.11 -8,537.17 6,033,642.09 461,267.94 Point 14 6,179.50 3,241.11 -9,297.07 6,034,302.11 460,510.79 Point 15 6,179.50 3,460.01 -9,571.27 6,034,522.10 460,237.51 Point 16 6,179.50 2,803.41 -8,700.17 6,033,862.03 461,105.84 Point 17 6,179.50 2,365.11 -8,276.67 6,033,422.06 461,527.52 Point 18 6,179.50 1,926.31 -7,974.67 6,032,982.08 461,827.70 Point 19 6,179.50 1,267.51 -7,664.77 6,032,322.09 462,134.89 Point 20 6,179.50 609.01 -7,268.27 6,031,662.05 462,528.67 Point 21 6,179.50 170.41 -6,910.07 6,031,222.05 462,885.05 Point22 6,179.50 -1,142.89 -5,209.67 6,029,901.98 464,579.93 Point 23 6,179.50 -2,895.39 -3,194.87 6,028,141.48 466,587.39 Point 24 6,179.50 -3,991.79 -2,286.77 6,027,041.51 467,490.93 Point25 6,179.50 -4,430.79 -2,025.47 6,026,601.50 467,750.42 1S14 V1 T1 0.00 0.00 6,256.20 -6,638.39 -3,467.08 6,024,400.00 466,300.00 -plan misses by 36.25ft at 11205.32ft MD(6220.96 TVD,-6645.24 N,-3462.05 E) -Point 1514 V1 13 0.00 0.00 6,286.20 -9,036.67 -1,749.14 6,021,995.00 468,008.00 -plan hits target -Point 1514 V1 T4 0.00 0.00 6,396.20 -10,235.31 -890.18 6,020,793.00 468,862.00 -plan hits target -Point 1514 Toe 0.00 0.00 6,326.20 -10,813.80 -501.79 6,020,213.00 469,248.00 -plan misses by 20.13ft at 16337.25ft MD(6326.88 TVD,-10802.16 N,-485.37 E) -Point 1514 V1 T6 0.00 0.00 6,316.20 -12,236.69 548.11 6,018,786.00 470,292.00 -plan hits target -Point 1514 V1 Kup 0.00 0.00 6,021.20 -6,143.75 -3,814.12 6,024,896.00 465,955.00 -plan hits target -Point IS14 Heel 0.00 0.00 6,226.20 -5,702.09 -4,154.96 6,025,339.00 465,616.00 -plan misses by 408.56ft at 10151.17ft MD(5867.56 TVD,-5808.64 N,-3990.83 E) -Point 1S14 V1 T5 0.00 0.00 6,276.20 -11,434.96 -32.21 6,019,590.00 469,715.00 4/20/2011 3:01:13PM Page 10 COMPASS 2003.16 Build 428 Halliburton Company HALLIBURTDN Standard Proposal Report Database: .Pioneer Alaska Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Company: Well Planning-Pioneer-Oooguruk TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-22i Survey Calculation Method: Minimum Curvature Wellbore: ODSN-22i IS14 Design: ODSN-22i IS14 wp06 -plan hits target -Point Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 4,423.02 3,251.00 11 3/4" 11.750 14.500 9,037.07 5,361.00 9 5/8" 9.625 11.750 11,126.04 6,199.00 7" 7.000 8.500 18,108.83 6,316.20 41/2" 4.500 6.125 Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction (ft) (ft) ft Name Lithology (?) (?) 10,943.23 6,142.00 BCU 6,646.49 4,264.00 Brook 2B 3,698.69 2,921.00 Tuffacious Shales 10,255.24 5,909.00 Base HRZ 10,375.68 5,955.00 Kalubik Marker 10,548.52 6,017.00 Top Kuparuk C 10,605.26 6,036.00 Base Kuparuk(LCU) 9,958.20 5,787.00 Top HRZ 8,854.62 5,274.00 Base Torok Sand 8,303.66 5,019.00 Torok Ss 2,542.09 2,300.00 Top West Sac 11,116.01 6,196.00 Top Nuiqsut Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 300.00 300.00 0.00 0.00 Start Dir 2°/100':300'MD,300'TVD:260°RT TF 550.00 549.68 0.00 0.00 Start Dir 3°/100':550'MD,549.68'TVD 891.68 885.79 -1.89 -10.74 Start Dir 2°/100':891.68'MD,885.79'TVD 1,727.02 1,650.00 -0.62 -69.61 Start Dir 3.5°/100': 1727.02'MD, 1650'TVD 3,231.15 2,707.99 32.34 -397.87 End Dir:3231.15'MD,2707.99'TVD 8,492.64 5,105.10 -519.96 -1,224.48 Start Dir 3°/100':8492.64'MD,5105.1'TVD 10,628.55 6,043.41 -4,401.63 -3,845.50 End Dir: 10628.55'MD,6043.41'TVD 11,093.07 6,188.94 -6,143.75 -3,814.12 Start Dir 3°/100': 11093.07'MD,6188.94'TVD 11,563.33 6,280.17 -6,196.49 -3,777.80 End Dir: 11563.33'MD,6280.17'TVD 12,540.78 6,351.16 -6,557.36 -3,524.08 Start Dir 3°/100': 12540.78'MD,6351.16'TVD 12,795.78 6,352.67 -6,775.22 -3,369.41 End Dir: 12795.78'MD,6352.67'TVD 13,907.91 6,285.08 -6,932.03 -3,257.01 Start Dir 3°/100': 13907.91'MD,6285.08'TVD 14,198.88 6,289.54 -7,724.27 -2,688.91 End Dir: 14198.88'MD,6289.54'TVD 15,329.08 6,392.86 -7,837.03 -2,608.11 Start Dir 3°/100': 15329.08'MD,6392.86'TVD 15,695.82 6,391.22 -7,931.41 -2,540.54 End Dir:15695.82'MD,6391.22'TVD 16,792.85 6,281.18 -8,834.00 -1,894.32 Start Dir 3°/100':16792.85'MD,6281.18'TVD j 17,176.18 6,279.36 -9,036.67 -1,749.14 End Dir:17176.18'MD,6279.36'TVD 18,108.84 6,316.20 -9,070.29 -1,725.05 Total Depth 18108.84'MD,6316.2'TVD 4/20/2011 3:01:13PM Page 11 COMPASS 2003.16 Build 428 Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-22i ODSN-22i IS14 ODSN-22i IS14 wp06 Anticollision Summary Report 21 April, 2011 I SURVEY PROGRAM ANTI-COLLISION SETTINGS )ate:7111-04-01T00:00:00 Validated:Yes Version: Interpolation Method: MD,interval:25.00 Depth Range From: 42.70 To 18108.84 Depth From Depth To Survey/Plan Tool Results Limited By: Centre Distance:2006.61 42.70 1500.00 ODSN-22i IS14 wp06 SR-Gyro-SS 1500.00 4500.00 ODSN-22i IS14 wp06 MWD+IFR2+MS+sag Reference: Plan:ODSN-22i IS14 wp06(ODSN-2200DSN-221IS14) 4500.00 0500.00 ODSN-22i 1514 wp06 MWD+IFR2+MS+sag Scan Type:GLOBAL FILTER APPLIED:All welipaths within 200'+100/1000 of reference 8500.00 10300.00 ODSN-22i 1514 wp06 MWD+IFR2+MS+sag 10300.00 18108.84 ODSN-2211514 wp06 MWD+IFR2+MS+seg - 1 ODSN-21 PS13 wp07 C` I ODSN-2311N14wpw,, ,,1: 65.1.20 34ext wp05 ODSK-ZO o �ODSN-15� ODSN-11i ISI Pi-4 l IODSN-12 P ' �.�.�5'1 'IODSK•1¢ �KUP C lateral PKt t/ �/ .. 30 ODSDNR•19 Dispose wp¢4 330.6 �.��4( 30 From Color To MD / 's% 1� �' ���f'44%. i 30 IODSN-2t PS1 'ZOO--y, �o�� .., S1 i� • iODSN-16L'� ��1R '-�j 'i\ ;�OJ1.' '�I�4p �ODSN-1 43-249 i,��. /i' ,t* ®I//�+, !IP • • • 249 499 al\� f��/� ���� 1 a:✓��.., ,a���; �- oDSN•I7 Li 499 749 300/` L,..... r.,1 , � 'a11`i� ► 60 300 !i,�%A�t 1� I e� so,- 999999 ��0,���'S`,'0, � �.1.01 I4 Ii /�, ♦ T ilii L wI' ie9, ��'�. -- 1249 1499 w .. 'Mt ill�.J 11`.. IODSN-231IN1} iii�1��=R.iii \�:���rji �i i • .ODSN=' 1749-1990 'r1499-1749 / `,rr.-: _ ���..iii•�,J frit,}fpr ,ty`,_ `.•;�r'/:Teti }Fj�1 I - 7999 2249 2 r :�,`� *1`\, 90 ,IAIti� ♦♦ !/4)� •, Ihdll�/pl�'')3�1,.- • lODSN-3i 2249 2499 '�/47,2,1,....4#.17-5-----,...,,„� ('111I #144 ! i!:-. 61,11 , :;m., o:`lQD8KJ81 Kopf) 2499-6769 `. )� r 27 11y). 3: {'6 �i16� 1 �� 2749-2999 r►�_ -/ _ •; 6671 6- t • DW219 Dlsposa 3999 3999 - 1 r , 4I ' 1 r� ♦•I �Zf x1,1(11 fr '- V/ jir999 4999 \\\� ` t��� e ///%G% I )/Dr. 'd� A' S1043'1(.41 Ku F -. h 4` ;A ooSN-2436. / /Lry,'/�,j(/1�'flt�{i 1 _ e,,t�. s .� A _P x999- - 5989 240`N\\�N` wee - 120 `'fi iltl'Y,° :ft 4'. •�i� y I ODST-39i Torok 5999 6999 `\®\`� If/j'1\:.0 t¢ ��� ip' 1s 6999-7999A1 4 , id,s,, 11\��;9yw �;��,�'il0li•r�, �obsw42A 7999-999e 11�4mia3 �mii\ \\� i 3Y • 'a / Veep 1 r i® tir-dO� I 8999 9999 sr �ip�7�\\ ` .- . ,�, ���\ ;.r 9` ``'`' �20 ODSN-0 PN1� 9999 [0999 210 �II��� 1,\ 150 240 'a A 1. 4\ fir,\ 1 10999 11999 Q /I . ���OD§DW1..,r '180 .ia�i@`'7441'��s ;.•�j�\p -rt- 1[999 [2999 /110*• ..... ►• - 13999 ODSN2436e4twpDO �3PS15• 13999 14999 ODSN-24 SNI9 wpo 4� �� r' `s;��j�o//tom rc ,A I 14999 16996 210 '011117,1,..48.08! 'i env 150 16999 [6999 VW ii- OD5T�8� �� \99/ , 16999 17999 Travelling Cylinder Aumuth(TFOsAZn 1?)vs Centre to Centre Separation 120 Mei 6I ODST-47 Torok D 17999-18999 • ' 18018999 18999-19999 DDSN-24_--T 19999 20999 ODSN-48i IS16 SECTION 067811.6 Sec mr. Inc AM WO 418,6 w at°6 r 4270 000 000 4270 000 000 OW 000 000 300 00 0 CO 0 CO 320 00 0 00 0 00 0 CO 000 000 1 Travelliug Cylinder Azimuth(TFO+AZI)(?)vs Centre to Centre Separation[50 ft/inI 1727 02 3170 27609 166000 3234.787 2. 203 .11 326116.90 21403 270780.51996•1224 47 350.81 66 48465 .92 64 6290 2.03 510510 4.1 63.364650 000 000 422515 1 1056077 MOO 14600 802120.61.75.14 12 300 8940 596692 REFERENCE INFORMATION ,4 v++c 1614 v,r Co-ordinate(N/E)Reference:Well OOSN-221-Slot 0133.22,True North 31264075 0564 14466 635116,24 27.265891 OM 000 75.21 Vertical(TVD)Reference:42.T+13.5'@ 56.20ft(Nabors 19AC) ,4 v,r: Section(VS)Reference:Slot-ODS-22(0.00N,0.00E) 512795 76 9340 14440 636267-71361 41.254054 300 004 76087861390791 9345 144 40 626508.6834 00.9462 000 ODD 874039 Measured Depth Reference:42.T+13.5'9356.209(Nabors 19AC) Well Planning-Pioneer-Oooguru6 14V113 81419888 8476 14437 6269 54 sown•172506 300 47971 698401 Calculation Method:Minimum Curvatura 91532906 8478 1.37 639206 8.504.6937 OGG ODD 992719 201563726.00 144.6396201023531 590 16 3C0 0381018623 Calculation Method:Minimum Curvature ,.v,u NAD 27 ASP Zone 4:WELL DETAILS:0136N-220 Error System: ISCWSAM OW 14v,n Scan Method:Tray.Cylinder North 241717619 8774 144 10 627936114817 167 306 000 11470. x1910661 67.74,«m 6616.201M® 648 11 Dao 000 M.6.S6,6,41176 Ground Level: 13.50 Error Surface: Elliptical Conic 40-S+E/-W Northing Easdng Latatude Longitude Slot Warning Method: Rules Based 0.00 0.00 6031023.58 469793.67 70.2W 44.960N 150°14'49.182 W ODS-22 Halliburton Company Anticollision Report Company: Well Planning-Pioneer-Oooguruk Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Project: Oooguruk Development TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site Error: tft North Reference: True Reference Well: ODSN-22i Survey Calculation Method: Minimum Curvature Well Error: ft Output errors are at 2.00 sigma Reference Wellbore ODSN-22i IS14 Database: .Pioneer Alaska Reference Design: ODSN-22i IS14 wp06 Offset TVD Reference: Offset Datum Reference ODSN-22i IS14 wp06 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval )tD tD(tDft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of ft Error Surface: Elliptical Conic Survey Tool Program Date 4/20/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description ODSN-22i 1S14 wp06(ODSN-22i IS14) SR-Gyro-SS Fixed:v2:surface readout gyro single shot ODSN-22i IS14 wp06(ODSN-22i IS14) MWD+IFR2+MS+sag Fixed:v2:IIFR dec&3-axis correction+sag ODSN-22i IS14 wp06(ODSN-22i 1S14) MWD+IFR2+MS+sag Fixed:v2:IIFR dec&3-axis correction+sag ODSN-22i 1S14 wp06(ODSN-22i 1S14) MWD+IFR2+MS+sag Fixed:v2:IIFR dec&3-axis correction+sag ODSN-22i 1S14 wp06(ODSN-22i 1S14) MWD+IFR2+MS+sag Fixed:v2:IIFR dec&3-axis correction+sag 4/21/2011 9:05:29AM Page 2 of 5 COMPASS 2003.16 Build 428 Halliburton Company Anticollision Report Company: Well Planning-Pioneer-Oooguruk Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Project: Oooguruk Development TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site Error: tft North Reference: True Reference Well: ODSN-22i Survey Calculation Method: Minimum Curvature Well Error: ft Output errors are at 2.00 sigma Reference Wellbore ODSN-22i IS14 Database: .Pioneer Alaska Reference Design: ODSN-22i IS14 wp06 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) Ooguruk Offset Wells Colville Delta 2-Colville Delta 2-Colville Delta 2 70.33 Pass-Minor Risk 1/200 Oooguruk Drill Site ODSDW1-44-ODSDW1-44 Disposal-ODSDW1 6.91 Pass-Major Risk ODSK-13i-KUP C lateral PK1 -ODSK-13 PK1 wl 6.77 Pass-Major Risk ODSK-13i-ODSK-13i KupH-ODSK-13 PK1 PH‘ 6.77 Pass-Major Risk ODSK-13i-ODSK-13i KupH-ODSK-13i KupH 6.77 Pass-Major Risk ODSK-14-ODSK-14-ODSK-14 KupB 6.50 Pass-Major Risk ODSK-14-ODSK-14 PB1 -ODSK-14 PB1 KupB 6.50 Pass-Major Risk ODSK-14-ODSK-14 PB2-ODSK-14 PB2 KupB 6.50 Pass-Major Risk ODSK-33-ODSK-33 KupA-ODSK-33 KupA 1.09 Pass-Major Risk ODSK-33-ODSK-33 PB1 KupA-ODSK-33 PB1 F 6.18 Pass-Major Risk ODSK-35Ai-ODSK-35 KupB-ODSK-35 KupB St 6.12 Pass-Major Risk ODSK-35Ai-ODSK-35Ai-ODSK-35Ai KupH Suri 6.12 Pass-Major Risk ODSK-38i-ODSK-38i KupD-ODSK-38i KupD St 6.66 Pass-Major Risk ODSK-41 -ODSK-41 KupF-ODSK-41 KupF Suri 6.40 Pass-Major Risk ODSK-41 -ODSK-41 PB1 KupF-ODSK-41 PB1 I. 6.49 Pass-Major Risk ODSK-42i-ODSK-42Ai-ODSK-42Ai 7.26 Pass-Major Risk ODSK-42i-ODSK-42i KupG-ODSK-42i KupG 7.30 Pass-Major Risk ODSN-1 -ODSN-1 37ext-ODSN-1 37ext wp03 6.48 Pass-Major Risk ODSN-10-ODSN-10 PS12-ODSN-10 PS12 wpl 6.52 Pass-Major Risk ODSN-11 i-ODSN-11 i IS11 -ODSN-1 1 i IS11 wp1 7.30 Pass-Major Risk ODSN-12-ODSN-12 PS10-ODSN-12 PS10 wp1 6.43 Pass-Major Risk ODSN-15i-ODSN-15i-ODSN-15i IN12 6.57 Pass-Major Risk ODSN-16-ODSN-16-ODSN-16 PN13 Surveys 6.42 Pass-Major Risk ODSN-16-ODSN-16-ODSN-16 PN13 wp11 6.42 Pass-Major Risk ODSN-16-ODSN-16L1 -ODSN-16L1 PN13 6.42 Pass-Major Risk ODSN-16-ODSN-16L1 -ODSN-16L1 PN13 wp1( 6.42 Pass-Major Risk ODSN-17-ODSN-17-ODSN-17 PN13 Mid Surve 6.05 Pass-Major Risk ODSN-17-ODSN-17-ODSN-17 PN13 Plan 6.22 Pass-Major Risk ODSN-17-ODSN-17 L1 -ODSN-17 L1 PN13 6.05 Pass-Major Risk ODSN-17-ODSN-17 L1 -ODSN-17L1 PN13 mid 6.05 Pass-Major Risk ODSN-18-ODSN-18-ODSN-18 PN11 7.29 Pass-Major Risk ODSN-18-ODSN-18 PB5-ODSN-18 PN11 PB5 7.29 Pass-Major Risk ODSN-18-ODSN-18 PB1 -ODSN-18 PN11 PB1 7.29 Pass-Major Risk ODSN-18-ODSN-18 PB2-ODSN-18 PN11 PB2 7.29 Pass-Major Risk ODSN-18-ODSN-18 PB2-ODSN-18_PB2 7.29 Pass-Major Risk ODSN-18-ODSN-18 PB3-ODSN-18 PN11 PB3 7.29 Pass-Major Risk ODSN-18-ODSN-18 PB4-ODSN-18 PN11 PB4 7.29 Pass-Major Risk ODSN-19-ODSDW2-19 Disposal-ODSDW2-19 7.60 Pass-Major Risk ODSN-2-ODSN-2 PS1 -ODSN-2 PS1 wp08 6.93 Pass-Major Risk ODSN-20-ODSK-20 34ext-ODSN-20 34ext wp0 5.64 Pass-Major Risk ODSN-21 -ODSN-21 PS13-ODSN-21 PS13 wp0 4.70 Pass-Major Risk ODSN-23i-ODSN-23i IN14-ODSN-23i IN14 wpC 3.76 Pass-Major Risk ODSN-24-ODSN-24 36ext-ODSN-24 36ext wpC 6.48 Pass-Major Risk ODSN-24-ODSN-24 SW9-ODSN-24 SW9 wp01 5.11 Pass-Major Risk ODSN-25-ODSN-25 31 ext-ODSN-25 31 ext wpi 4.25 Pass-Major Risk ODSN-26-ODSN-26 32 ext-ODSN-26 32ext wpi 5.65 Pass-Major Risk ODSN-27i-ODSN-27i IN2-ODSN-27i IN2 wp06 6.50 Pass-Major Risk ODSN-28-ODSN-28 PN3-ODSN-28 PN3 wp07. 6.05 Pass-Major Risk ODSN-29i-ODSN-29i IN4-ODSN-29i IN4 wp06 6.51 Pass-Major Risk ODSN-30-ODSN-30 PN5-ODSN-30 PN5 wp05 6.51 Pass-Major Risk ODSN-31 -ODSN-31 -ODSN-31 PN6 Surveys 6.38 Pass-Major Risk 4/21/2011 9:05:29AM Page 3 of 5 COMPASS 2003.16 Build 428 Halliburton Company Anticollision Report Company: Well Planning-Pioneer-Oooguruk Local Co-ordinate Reference: Well ODSN-22i-Slot ODS-22 Project: Oooguruk Development TVD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7'+13.5'@ 56.20ft(Nabors 19AC) Site Error: tft North Reference: True Reference Well: ODSN-22i Survey Calculation Method: Minimum Curvature Well Error: ft Output errors are at 2.00 sigma Reference Wellbore ODSN-22i IS14 Database: .Pioneer Alaska Reference Design: ODSN-22i IS14 wp06 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) Oooguruk Drill Site ODSN-31 -ODSN-31 PB1 -ODSN-31 PB1 PN6 St 6.38 Pass-Major Risk ODSN-32i-ODSN-32i IN7-ODSN-32i IN7 Surve: 6.68 Pass-Major Risk ODSN-32i-ODSN-32iPB1 IN7-ODSN-32iPB1 IN 6.68 Pass-Major Risk ODSN-34i-ODSN-34 IN9-ODSN-34i IN9 Survey 6.36 Pass-Major Risk ODSN-34i-ODSN-34i PB2-ODSN-34iPB2 IN9 6.36 Pass-Major Risk ODSN-34i-ODSN-34i PB3-ODSN-34iPB3 IN9 6.36 Pass-Major Risk ODSN-34i-ODSN-34iPB1 -ODSN-34iPB1 IN9 6.36 Pass-Major Risk ODSN-36-ODSN-36 L1 -ODSN-36 L1 wp01 5.72 Pass-Major Risk ODSN-36-ODSN-36 PB1 -ODSN-36 PB1 PN10 5.72 Pass-Major Risk ODSN-36-ODSN-36 PB2-ODSN-36 PB2 PN10 5.72 Pass-Major Risk ODSN-36-ODSN-36 PN10-ODSN-36 PN10 Sur 5.72 Pass-Major Risk ODSN-37-ODSN-37-ODSN-37 PN8 6.35 Pass-Major Risk ODSN-37-ODSN-37 L1 -ODSN-37 L1 wp01 6.35 Pass-Major Risk ODSN-3i-ODSN-3i IS2-ODSN-3i IS2 wp08 6.93 Pass-Major Risk ODSN-4-ODSN-4 PS3-ODSN-4 PS3 wp07 6.51 Pass-Major Risk ODSN-40-ODSN-40 PN12-ODSN-40 PN12 Sur 6.33 Pass-Major Risk ODSN-40-ODSN-40PB1 PN12-ODSN-40PB1 P 6.33 Pass-Major Risk ODSN-40-ODSN-40PB2 PN12-ODSN-40PB2 P 6.42 Pass-Major Risk ODSN-43-ODSN-43 PS15-ODSN-43 PS15 wp0 5.90 Pass-Major Risk ODSN-48-ODSN-48i 1516-ODSN-48i IS16 wp0' 4.16 Pass-Major Risk ODSN-5i-ODSN-5i IS4-ODSN-5i IS4 wp08 6.94 Pass-Major Risk ODSN-6-ODSN-6 PS5-ODSN-6 PS5 wp09 6.51 Pass-Major Risk ODSN-7i-ODSN-7i IS7-ODSN-7i IS7 wp08 6.86 Pass-Major Risk ODSN-8-ODSN-8 PS8-ODSN-8 PS8 wp08-8K 6.86 Pass-Major Risk ODSN-9i-ODSN-9i IS9-ODSN-9i IS9 wp11 -8K 7.60 Pass-Major Risk ODST-39-ODSN-39i IN11 -ODSN-39i IN11 6.38 Pass-Major Risk ODST-39-ODST-39i Torok D-ODST-39 Torok D 6.38 Pass-Major Risk ODST-45-ODSN-45i PB1 IN13-ODSN-45i PB1 6.18 Pass-Major Risk ODST-45-ODST-45A-ODST-45A Surveys 6.18 Pass-Major Risk ODST-46i-ODST-46i-ODST-46i Torok C 2.77 Pass-Major Risk ODST-46i-ODST-46i-ODST-46i Torok C wp05 Out of range ODST-46i-ODST-46i PB1 -ODST-46i Torok C P 2.77 Pass-Major Risk ODST-46i-ODST-46i PB1 -ODST-46i Torok C w 3.74 Pass-Major Risk ODST-46i-ODST-46i PB2-ODST-46i Torok C P 2.77 Pass-Major Risk ODST-46i-ODST-46i PB2-ODST-46i Torok C w 2.77 Pass-Major Risk ODST-46i-ODST-46i Torok C PB3-ODST-46i P 2.77 Pass-Major Risk ODST-47-ODST-47 Torok B-ODST-47 Torok B 4.21 Pass-Major Risk 4/21/2011 9:05:29AM Page 4 of 5 COMPASS 2003.16 Build 428 Page 1 of 2 Schwartz, Guy L (DOA) From: Schwartz, Guy L(DOA) Sent: Monday, June 27, 2011 11:25 AM To: 'Vaughan, Alex' Subject: RE: ODSN-22i (PTD 211-078) Thanks Alex... looks like no wells are in the 1/4 mile area. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Vaughan, Alex [mailto:Alex.Vaughan@pxd.com] Sent: Monday, June 27, 2011 11:00 AM To: Schwartz, Guy L (DOA) Cc: Tirpack, Robert Subject: FW: ODSN-22i (PTD 211-078) Guy, Please see attached ONSN-22i area of review. Please advise if I can be of further assistance. Alex Vaughan Senior Drilling Engineer PIONEER NATURAL RESOURCES 907.343.2186 (office) 907.748.5478 (mobile) From: Vaughan, Alex Sent: Monday, June 27, 2011 9:20 AM To: 'Schwartz, Guy L(DOA)' Cc: Tirpack, Robert; 'Galen Nelson' Subject: RE: ODSN-22i (PTD 211-078) Guy, We are working this and should have it by the end of the day. Thanks. Alex Vaughan Senior Drilling Engineer PIONEER NATURAL RESOURCES 907.343.2186 (office) 907.748.5478 (mobile) From: Schwartz, Guy L(DOA) [mailto:guy.schwartz@alaska.gov] Sent: Friday, June 24, 2011 12:16 PM To: Vaughan, Alex; Tirpack, Robert Subject: ODSN-22i (PTD 211-078) 6/27/2011 Page 2 of 2 Alex/Rob: Can you guys provide an AOR (Area of Review) as required for injectors. I didn't see it in the PTD package. Thanks, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) Statement of Confidentiality: This message may contain information that is privileged or confidential. If you receive this transmission in error, please notify the sender by reply e-mail and delete the message and any attachments. 6/27/2011 17 ,; - o 1� ® 16+fa)L to 73..111❑to IP it RS k_ I + :* 413. 6 %L 4 Plan:ODSN-22i IS14 wp06(ODSN-22i/ODSN-22i IS14) 14001111<:,_,-- 41111%1111K-rj.41111111.11411P410tilill--- ---------- ' 1.011. - -' APPAllihkb.. i 1_Td J re-" �\ \ -\SC \ \ \ SC $ODSN-22i 1114 wp06 _ - - 2Cohrille Delta 2,Colville Delco 7,Colville Deka 2 VO '"""liiii"IIIII%lltlttlo„ ODSDWI-44 ODSDWI-44 Disposal,ODSDWI-44 Dr- ODSK-13i,ODSK-13i KupH,ODSK-13i KupH VO ODSK-14,ODSK-14 PB1,OOSK-14 PB1 KupB VO 0W ODSK-14 Pot,ODSK-14 PB2 KupB VO • e ODSK-14,ODSK-14,ODSK-14 KupB VO 1eODSK-33,ODSK-33 KupA,ODSK-33 KupAVO $ODSK-33,ODSK-33 PB1 KupA,ODSK-33 P81 KupA... 1i etirODSK-35Ai,ODSK-35 KupB,ODSK-35 KupB Survey... 4ODSK-35Ai,ODSK-35A,ODSK-35Ai KupH Surveys... 40DSK-38i,ODSK-38i KupD,ODSK-38i KupD Survey...- 1\ $ODSK-4],ODSK-41 KupF,OD1K-41 KupF Surveys VO e 001K-41,ODSK-41 PB1 KupF,ODSK-41 P81 KupF VO '*ODSK-42i,ODSK-42A,ODSK-42Ai VO A ODSK-42i,ODSK-42i KupG,ODSK-42i KupG VO 1 .egle ODSN-15i,ODSN-15i,ODSN-15i I1912 VO 44.ODSN-16,ODSN-16,ODSN-16 PN13 Surveys VO eODSN-16,ODSN-1611,OD5N-1611 PN13 VO ODSN-17,ODSN-17 Ll,ODSN-17 1.1 PN13 VO I $ODSN-17,ODSN-17,ODSN-17 PN13 Mid Surveys VO 1l ege ODSN-18,ODSN-18 PBS,ODSN-18 PN11 P85 VO LiODSN-18,ODSN-18 P81,ODSN-18 PN11 PK,.2ODSN-18,ODSN-18 PB2,ODSN-18 PN11 P82 V0 ODSN-18,ODSN-18 PB2,ODSN-18_PB2 VO 1 - 1 orxl 611,1676 b. 16 No-Ord 0 it•9K 14 El +1f f4a JicI•1 t Plan:ODSN-22i 1514 wp06(ODSN-22i/ODSN-22i!S14) t `- - 11.1111/411L . \ 11101N‘#NZ I.,. ... „ , . $ODSN-22i IS14 wp06 _ e Colville Deka 2,Colville Deka 2,Colville Deka 2 VO - A ODSDW1-44,ODSDW1-44 Disposal,ODSDW1-44 Di... \ 4ODSK-13i,ODSK-13i KupH,ODSK-13i KupH VO eODSK-14,ODSK-14 PBI,ODSK-14 PB1 KupB VO 4ODSK-14,ODSK-14 P82,ODSK-14 PB2 KupB VO $ODSK-14,ODSK-14,ODSK-14 KupB VO e ODSK-33,ODSK-33 KupA,ODSK-33 KupA VO $ODSK-33,ODSK-33 P81 KupA,ODSK-33 PB1 KupA... gar ODSK-35Ai,ODSK-35 KupB,ODSK-35 KupB Survey... tODSK-35Ai,ODSK-35Ai,ODSK-35Ai KupH Surveys.,. ODSK-36i,ODSK-38i KupD,ODSK-38i KupD Survey...- $ODSC-41,ODSK-41 KupF,ODSK-41 KupF Surveys VO ODSK-41,ODSK-41 PB1 KupF,ODSK-41 P81 KupF VO ODBC-42i,ODSK-42Ai,ODBC-42Ai VO ODSK-42i,ODSK-421 KupG,ODSK-42i KupG VO 411ODSN-15i,ODSN-15i,ODSN-15i IN12 VO -3EODSN-16,ODSN-16,ODSN-16 PN13 Surveys VO ODSN-16,ODSN-16L1„ODSN-16L1 PN13 VO .ODSN-ll,ODSN-11 LI,ODSN-17 Ll PN13 VO 1 $ODSN-17,ODSN-17,ODSN-17 PN13 Mid Surveys VO 41ODSN-18,ODSN-18 PBS,ODSN-18 PN11 PBS VO \44 A ODSN-18,ODSN-18 PBI,ODSN-18 PNll MVO 2ODSN-18,ODSN-18 PB2,ODSN-18 PNll PB2 VO ODSN-18,ODSN-18 PB2,ODSN-18_PB2 VO E - 1 ° 1X1 0 iGg L- L ',', SP 0 GI 1EL..At RS ,_ Ili :: 110/ 8, 111- V Plan:ODSN-22i 1514 wp06(ODSN-22i/ODSN-2211314) // \\iii ir ' 1 --__ _____,.... - ..-------- ---.:. ' 41111111111411.--' _404:10041114______...-----ill\:416:___________ \ 1 1 . ._ _ \ ZSOC - _�` \\ \ C)OC __ _ I ❑ I xI $ODSN-22i IS14 wp06 -- -- ---- --- 2 Colville Deka 2,Colville Delta 2,Colville Deka 2V0 ODSDW1-44,ODSDWI-44 Disposal,ODSDW1-44 Di... ODSK-13i,ODSK-13i KupH,ODSK-13i KupH VO 4400.441111111111 ODSK-14,ODSK-14 PB1,ODSK-11 PB1 KupB VO ODSK-14,ODSK-14 P82,ODSK-14 PB2 KupB VO $ODSK-14,ODSK-14,ODSK-14 KupB VO e0DSK•33,ODSK-33 Kupq ODSK-33 KupH VO I +30DSK-33,ODSK-33 P01 KupA,ODSK-33 P81 KupA... \\\ 41.0DSK-35Ai,ODSK-35 KupB,ODSK-35 KupB Survey... *ODSK-35Ai,ODSK-35.114,ODSK-35Ai KupH Surveys-.. *ODSK-38i,ODSK-38i KupD,ODSK-38i KupD Survey...- $ODSK-41,ODSK-41 KupF,ODSK-41 KupF Surveys VO 4 ODSK-41,ODSK-41 PB1 KupF,ODSK-41 P81 KupF VO tODSK-41i,ODSK-42Ai,ODSK-42Ai VO ODSK-42i,ODSK-42i KupG,ODSK-42i KupG VO egkODSN-1.51,ODSN-15i,ODSN-15i 1N12 VO 4 0DSN-16,ODSN-16,ODSN-16 PN13 Surveys VO eODSN-16,ODSN-16L2,ODSN-16L1 PN13 VO 01:1574-17,ODSN-17 Li,ODSN-1711 PN13 VO $ODSN-17,ODSN-17,ODSN-17 PN13 Mid Surveys VO 1 ODSN-18,00%1-18 P05,ODSN-18 PNU P85 VO A ODS61-18,ODSN-18 P81,ODSN-18 PN11 PB1V0 I QODS61-18,ODSN-18 P82,ODSN-18 PN11 PB2 VO - --- -- - -._. -_ .A ODSN-18.ODSN-18 P82.00214-18 P02 V0 ..I Page 1 of 4 Schwartz, Guy L (DOA) From: Davies, Stephen F(DOA) Sent: Friday, June 24, 2011 12:04 PM To: Cook, Robert; Roby, David S (DOA); Schwartz, Guy L (DOA) Cc: Foley, Pat; Bond, Andy; Hoffman, Dale; Hellen, John Subject: RE: SRPS designation request for ODSN-22i (Nuiqsut injector) Robert, Based on the Kuparuk Amplitude map and drilling results presented below, zero SRPS is appropriate for the revised well course for ODSN-22 (Permit to Drill number 211-078). Please let me know if you have any additional questions. Regards, Steve Davies Sr. Petroleum Geologist Alaska Oil and Gas Conservation Commission 907-793-1224 From: Cook, Robert [mailto:Robert.Cook@pxd.com] Sent: Friday, June 24, 2011 11:49 AM To: Davies, Stephen F (DOA); Roby, David S (DOA); Schwartz, Guy L (DOA) Cc: Foley, Pat; Bond, Andy; Hoffman, Dale; Hellen, John Subject: SRPS designation request for ODSN-22i (Nuiqsut injector) Gentlemen, Pioneer plans to drill the Oooguruk Nuiqsut well designated ODSN-22i this fall,and would like to notify you that it may penetrate Kuparuk section during a restricted drilling season. This well,formerly called the S-14(PS14), is referenced in the March 28, 2008 response letter from AOGCC to Pioneer, and has been granted the designation 'Zero SRPS'. We give this notification because the bottom hole location (Kup penetration point) has changed from the originally proposed and approved location by approximately 1,200 feet. The original location approved was near the ODSN-40(formerly PN12)which was drilled in 2008 and had a zero SRPS designation. The new location shifts outward to the southeast(away from Kup thickness)toward the CD-2 well with 0'gross Kup thickness(see attached map). Results of the first three wells in the fault block are as follows: The N-40 well had a gross Kuparuk thickness of about 6'with a net sand of about 1.5' (accurate to pre-drill prediction). This well was reviewed with AOGCC shortly after drilling. We recently perforated this interval, and the Kupc interval would not flow unassisted. Other wells drilled in this fault block were the IN-13 (ODSN-16)and the IN14(ODSN-18). Bottom hole locations for these wells were moved and are indicated on the attached plat. These wells each had about 2'gross interval with 0' net sand in the Kuparuk. The results of these wells were communicated via phone to AOGCC with no review required. 6/24/2011 Page 2 of 4 Based on your previous finding and our shift to an even less likely area for Kup sand in the ODSN-22i well, we would like to retain the zero SRPS for this location, and drill in the restricted season if necessary. Thanks for your consideration. Respectfully, Robert Cook Geoscience Manager Pioneer Natural Resources, Alaska 700 G Street, Anchorage, AK 99501 office (907) 343-2124 fax (907) 343-2190 robert.cook@pxd.com Excerpt from the AOGCC response letter dated March 28, 2008. 6/24/2011 Page 3 of 4 In sum, the Commission makes the following recommendations with respect to Pioneer's Mr request: 1) A zero SRPS is appropriate for the following five proposed wells (with Kuparuk penetrations as indicated in Pioneer's March 10, 2008, request), on the condition th Kuparuk C Formation penetration, Pioneer presents and meets with the Commission well results for the Kuparuk C Formation penetrations, thereby enabling the Commis! if appropriate, its SRPS recommendations for the remaining proposed wells: a. Oooguruk Nuiqsut Producer N-12 Laurie Silfven March 28,2008 Page 3 of 3 b. Oooguruk Nuiqsut Injector N-11 c. Oooguruk Nuiqsut Injector N-13 d. Oooguruk Nuiqsut Producer N-14 c. Oooguruk Nuiqsut Producer S-14 2) The Commission recommends that ADEC delay deciding whether to approve a zero following wells until there is more well data: a. Oooguruk Nuiqsut Producer S-5 b. Oooguruk Nuiqsut Injector S-7 6/24/2011 Page 4 of 4 !Confidential � Proposed Nuiqsut Wells 0 \\\ 4/ \ \ ' i if Ls °('9/ ) S \ /.i, k li oil, , Proposed c \co Wells ' IN11 17/, \ Xb \I , \ 04 • • ` N1 t 7�j PS5 5 S`,/)w r IS7/ S\:\ I13S • ° // ~— ,, PN14 0 0----, Non-reservoir \ 0 Ku•aruk ° S14 BHL shift outboar. 1,200' now N-22 ��. 0 No Kup in upthrown well. 0 PS14 ,\, Kup RMS Amplitude \ (-8/+20msec) Statement of Confidentiality: This message may contain information that is privileged or confidential. If you receive this transmission in error, please notify the sender by reply e-mail and delete the message and any attachments. 6/24/2011 TRANSMITTAL LETTER CHECKLIST • WELL NAME PTD# ./ Development Service Exploratory Stratigraphic Test Non-Conventional Wellj. FIELDJ • eY; t,,eL POOL:h'L -)C-r> z LCA —C /a /Z �. Circle Appropriate Letter I 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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