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213-008
Guhl, Meredith D (DOA) From: Guhl, Meredith D (DOA) Sent: Wednesday, March 01, 2017 2:42 PM To: Vern.Johnson@caelusenergy.com Cc: Schwartz, Guy L (DOA); Bettis, Patricia K (DOA) Subject: PTD 212-008, Oooguruk ODSN-20 Hello Vern, Permit to Drill 213-008, for Oooguruk ODSN-20, issued 30 January 2013, has expired under Regulation 20 AAC 25.005 fgJ. The PTD will be marked expired in the AOGCC database. If you have any questions, please contact me. Thank you, Meredith Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. THE STATE A okz 01and Gae OIALA,'�'SKA C(anservation Commtss�on GOVERNOR SEAN PARNELL 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 Alex Vaughan Staff Drilling Engineer Pioneer Natural Resources Alaska, Inc. 700 G Street, Suite 600 Anchorage, AK 99501 Re: Oooguruk Field, Nuiqsut Oil Pool, ODSN-20i Pioneer Natural Resources Alaska, Inc. Permit No: 213-008 Surface Location: 2917' FSL, 1194' FEL, SEC. 11, T13N, R7E, UM Bottomhole Location: 2856' FSL, 2193' FEL, SEC. 33, T14N, R7E, UM Dear Mr. Vaughan: Enclosed is the approved application for permit to drill the above referenced service well. Pioneers request to waive the diverter system as required by 20 AAC 25.035 (c) while drilling surface hole is DENIED. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, Cathy . Foerster Chair DATED this 3o day of January, 2013. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA XA OIL AND GAS CONSERVATION COMN. iON PERMIT TO DRILL � ili�2s�l3 �n AAq 9�, nn,; 1 a. Type of Work: 1 b. Proposed Well Class: Development - Oil Service - Wini ❑ Single Zone Q 1 c. Specify if well is proposed for: Drill 7 Lateral ❑ Stratigraphic Test ❑ Development - Gas Service - Supply ❑ Multiple Zone ❑ Coalbed Gas ❑ Gas Hydrates ❑ Redrill ❑ Reentry ❑ Exploratory ❑ Service - WAG Service - Disp ❑ Geothermal ❑ Shale Gas ❑ 2. Operator Name: 5. Bond: Blanket Q Single Well ❑ 11. Well Name and Number: Pioneer Natural Resources Alaska, Inc. Bond No. 103655283 - ODSN-20i 3. Address: 700 G Street, Suite #600 6. Proposed Depth: 12. Field/Pool(s): Anchorage, AK 99501 MD: 18,203' ' TVD: 6216', 7. Property Designation (Lease Number): Oooguruk - Nuigsut Oil Pool• 4a. Location of Well (Governmental Section): Surface: 2917' FSL, 1194' FEL, Sec. 11, T13N, R7E, UM ' ADL 355036 / ADL 389959 Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 3328' FSL, 3463' FEL, Sec. 3, T13N, R7E, UM 417497 217/2013 - Total Depth: 2856' FSL, 2193' FEL, Sec. 33, T14N, R7E, UM 9. Acres in Property: 14. Distance to Nearest Prope ft P)�3 5760 + 2560. Ar 411 za3 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 56.2 feet A 5. Distance to Nearest Well Open Surface: x- 469803.59 y- 6031033.50 Zone -ASP 4 - GL Elevation above MSL: 13.5 feet to Same Pool: ODSN-34 is 1265' 16. Deviated wells: Kickoff depth: • 225 feet away 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 95.01 degrees Downhole: 3202 • Surface: 2511 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 Brc-M/ Hyd 521 4759' Surface Surface 4802' 3219' 576 sx PF'L'; 467 sx Class'G' 11-3/4" 9-5/8" 40# L-80 Hyd 521 4946' 4652' 3150' 9598' 5437' 153 sx Class'G' 8-1/2" 7" 26# L-80 BTC-M/ Hyd 563 11,925' Surface Surface 11,968' 6284' 342 sx Class'G' 6-1/8" 1 4-1/2" 12.6# L-80 I Hyd 521 1 6385' 11,818' 1 6271' 18,203' 1 6216' 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 Conductor/Structural Surface Intermediate Production 7T7 13 Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): �OGC 20. Attachments: Property Plat BOP Sketch ❑ Drilling Program 0 • Time v. Depth Plot ❑ Shallow Hazard Analysis❑ Diverter Sketch ❑ Seabed Report ❑ Drilling Fluid Program 0 . 20 AAC 25.050 requirements❑ 21. Verbal Approval: Commission Representative: Date 22. 1 hereby certify that the foregoing is true and correct. Contact Alex Vaughan, 343-2186 Email alex.vaughan(cDpxd com Printed Name Alex Vaughan Title 9 Staff Drilling Engineer Signature Phone 343-2186 Date 1/11/2013 -- Commission Use Only Permit to Drill (� IA"umber: Permit Approval See cover letter for other Number: 0213 Op b 50- O �_d0 _ Date: Od requirements. Conditions of approval : If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales: ❑✓ Other: , O Samples req'd: Yes ❑ No[f Mud log req'd: Yes ❑ No [Er HZS measures: Yes ❑ No Directional svy req'd: Yes [2' No❑ (2 9L Ovc� '7rf G�cSr fn�%�cc L��l _ Spacing exception rdeq'd: Yes ❑?NoE2r Inclination -only svy req'd: Yes ❑ No[a' cl APPROVED BY Approved b COMMISSIONER THE COMMISSION Date: -1-3 U It (e i 1 0,) This permit is valid for 24 months from the date f approval (20 AAC 25.005(g)) Attac h ents i,} Dup�"e / �. PIONEER NATURAL RESOURCES ALASKA January 10th, 2013 State of Alaska Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite #100 Anchorage, AK 99501 RE: Application for Permit to Drill ODSN-20i RECEIVED JAN 10 2013 Pioneer Natural Resources Alaska, Inc. 700 G Street, Suite 600 Anchorage, Alaska 99501 Tel: (907) 277-2700 Fax: (907) 343-2190 Surface Location: 2917' FSL, 1194' FEL, Sec. 11, T13N, R7E, UM X = 469803.59, Y = 6031033.50, ASP4 Pioneer Natural Resources Alaska, Inc. (PNRA) hereby applies for a Permit to Drill a development well from the Oooguruk Drill Site (ODS) located within the Oooguruk Unit. The well is designed to be 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-20i prior to injection for an undetermined period and therefore will permit as a producer with the intention to submit a sundry to convert well classification to an injector at termination of pre -production period as requested by the AOGCC. As indicated in the attachments, the drilling and well construction program includes the following: • Surface Hole: o Drill 14-1/2" to-4,802' MD / 3,219' 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-9,598' MD / 5,437' TVD. Run and set a 9-5/8" drilling liner. • Intermediate Hole 2: o Drill 8-1/2" and under -ream while drilling (UWD) to 9-1/2" to-11,968' MD / 6,284' TVD and set 7" Intermediate casing into the top of the Oooguruk-Nuiqsut formation. • ODSN-20i Lateral Hole: o Drill 6-1/8" horizontally to-18,203' MD / 6,216' 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 Consei January 10", 2013 Page 2 of 3 on Commission PNRA will implement Managed Pressure Drilling technology (MPD) while drilling the Intermediate 2 and Lateral hole sections of ODSN-20i 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 -13.0 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 7" shoe during connections and while tripping. ■ Open formations: Nuigsut 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. DI UG r�c r -, � 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 Conser January 10th, 2013 Page 3 of 3 .ion Commission 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 February 7th, 2013. 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-20i Well File Permit to Drill Well Plan Summary ODSN-20i Oooguruk — Nuigsut Single Lateral Production Well Surface TD @ 4,802' MD / 3,219' TVD Drilling Liner TD @ 9,598' MD / 5,437' TVD Intermediate TD @ 11,968' MD / 6,284' TVD Lateral TD @ 18,203' MD / 6,216' TVD Surface Location: 2917' FSL, 1194' FEL, Sec. 11, T13N, R7E, Umiat ASP 4 NAD27projection X = 469803.59 1 Y = 6031033.50 Target: Ooo uruk-Nui sut 3328' FSL, 3463' FEL, Sec. 3, T13N, R7E, Umiat, (ADL355036) X = 462267.57 1 Y = 6036809.32 1 6,284' TVDrkb Bottom Hole Location 2856' FSL, 2193' FEL, Sec. 33, T14N, R7E, Umiat, (ADL389959) X = 458302.00 1 Y = 6041606.00 1 6,216' TVDrkb AFE Number: TBA Est. Start Date: Feb 7th, 2013 Ri : Nabors 19AC Operating days: 45 days to Drill and Complete Objective & Well Type Nui sut 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: Jan 10th, 2013 ODSN-20i Permit To Drill Page 1 of 12 7 4- t-zY•i3 Well Control: Well Section Pressure Depth psi TVD Basis 14-1/2" Surface Section Maximum anticipated BHP 1440 3219 Based on seawater gradient of 0.4472 psi/f Maximum surface pressure (Based on BHP and a full column of gas 1085 Surface from TD @ 0.11 psi/ft) 10-5/8" x 11-3/4" Drilling Liner Hole Section Maximum anticipated BHP (Based on seawater gradient of 0.4472 2431 5437 psi/ft) Maximum surface pressure 1833 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 3202 6284 Based on 9.8 ppg Oooguruk-Kuparuk pore pressure) Maximum surface pressure 2511 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 3168 6216 Based on 9.8 ppg Oooguruk-Nuiqsut pore pressure) Maximum surface pressure 2484 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: Jan 10`h, 2013 ODSN-20i Permit To Drill Page 2 of 12 Formation Intearitv Testina 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 ppq Drilling Fluids Proqram: Surface Hole Mud Properties: 14-1/2" hole Spud Mud Interval Density Viscosity secs YP PV 10 sec el 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 1 in- 15 <12 Drilling Liner Mud Properties: 10-5/8" x 11-3/4" hole MOBM Interval Density 455 Viscosity secs YP PV HTHP O / W Initial to TD 10.0 - 11.0 - 80 15 - 25 20 - 35 < 6.0 80 / 20 Intermediate Hole Mud Properties: 8-1/2" x 9-1/2" hole LSND Interval Density Viscosity secs YP PV MBT API FL Initial to TD 9.8 - 10.5 ppg 50 - 70 15 - 25 15 - 25 < 10 3-5 (-13.0 ppg via (8-10 MPD) HTHP Lateral Hole Mud Properties: 6-1/8" hole MOBM Interval Density Viscosity secs YP PV HTHP O / W Initial to TD 7.2 - 8.2 ppg 55 - 80 12 - 25 10 - 20 <6 94 / 6 (-9.8 -10.2 ppg via MPD Pioneer Natural Resources Last Revised: Jan 10t', 2013 ODSN-20i Permit To Drill Page 3 of 12 Formation Markers: Formation Tops P MD ft () TVDrkb Pore Press. (psi)Comments EMW Top of Permafrost 861 853 Base of Permafrost 1786 1668 Ugnu D 1844 1713 Top West Sak 2765 2277 1024 8.65 Base of fluvial sands Cret tuffs 4123 2905 Hue 2 shale 4781 3210 SCP (10' TVD below Hue2) 4802 3219 Brookian 2B 7119 4291 Top Torok Sand 8673 5009 2253 8.65 Injection sand Base Torok Sand 9160 5235 Torok 1 Shale 9587 5432 ICP1 (5' TVD below Torok 1 Sh) 9598 5437 Top HRZ 10562 5882 Base HRZ (Top Kalubik Sh) 10849 6015 Kalubik Marker 11055 6106 Top Kuparuk C 11254 6177 3148 9.8 Oil bearing formation LCU (Top Miluveach Sh) 11334 6199 BCU (Top Kingak Sh) 11721 6263 Top Nuiqsut 11893 6278 Nuiqsut 1 11924 6280 ICP2 (4' into Zone 1) 11968 6284 3202 9.8 Production zone TD 18203 6216 Pioneer Natural Resources Last Revised: Jan 10th, 2013 ODSN-20i Permit To Drill Page 4 of 12 Logging Proqram: 14-1/2" Section: Drilling: Dir / GR Open Hole: N/A Cased Hole: N/A 10-5/8" x 11-3/4" Section: Drilling: Mud Logging Dir / GR /Res Open Hole: N/A Cased Hole: N/A 8-1/2" Section: Drilling: Mud Logging Dir / GR / Res / AzDens / Neut Open Hole: N/A Cased Hole: 6-1/8" Section: Drilling: Mud logging Dir / GR / Res / AzDens / Neut / PWD / Bat Sonic Open Hole: N/A Cased Hole: N/A Pioneer Natural Resources Last Revised: Jan 10t", 2013 ODSN-20i Permit To Drill Page 5 of 12 Casinq Proqram: Hole Size Casing / Tubing Weight Grade Conn. Casing Length Csg/Tbg Top MDrkb Hole Btm MDrkb/TVDrkb 24" 16" 109# H-40 Welded 115 Surface 158 158 14-1/2" 11-3/4" 60# L-80 BTC-M 4759 Surface 4801.6 3219 11-3/4" 9-5/8" 40# L-80 H dril521 4946 4651.6 9597.5 5436.7 8-1/2" 7" 26# L-80 BTC-M 11925 Surface 11968 6284.1 6-1/8" 4-1/2" 12.6# L-80 H dril521 6385 11818 18202.8 6216.2 Tubing 3-1/2" 9.3# L-80 IBT / TCII 1 9405 1 Surface 9447.5 15363.9 Casing Properties Size Weight Grade ID Drift ID Conn. Internal Yield (psi) Collapse (psi) Tensile Strength Joint Body 16" 109# H-40 14.67" 14.5" Welded Conductor casing 11-3/4" 60# L-80 10.772" 10.62" BTC-M 5830 3180 1384M 1384M 9-5/8" 40# L-80 8.835' 8.75" H dril 521 5750 3090 916 M 916 M 7" 26# L-80 6.276" 6.151 H dril 563 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" H dril 521 na na 289 M 289 M Pioneer Natural Resources Last Revised: Jan 101h 2013 ODSN-201 Permit To Drill Page 6 of 12 Cement Calculations: CasingSize: 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: 3,828' MD - 500' MD above 3000' TVD Total Cement Volume: Preflush 10 bbl water Spacer 60 bbl 10.0 ppg Dual Spacer Lead 447 bbis / 576 sx of 10.92 ppg Type "L" Permafrost Cement. 4. 15 c /sk, 20.0 gps water req. Tail Is / 467 sx of 15.9 ppg Premium "G" + adds. 19 cf/s 5.23 gps water req. Displ 517 bbls Mud L_Temp I BHST -550 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: 9,098' MD - 500' MD above casing point 15% excess, plus 85' shoe track Total Cement Volume: Preflush 10 bbl water Spacer 60 bbl 10 ppg Dual Spacer -- Primary 32 bbls / 153 x Premium "G" + adds. 1.17 cf/sk Dis I 451 bbis mud Temp BHST - 135' F, BHCT -110' F CasingSize: 1711 Intermediate 2 - single stage Basis: TOC.-10,757'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 S acer - Primary 71 bbls / a42 sx Premium "G" + ad . 1.17 cf/sk Dis I 455 bbls mud " Temp BHST - 165' F, BHCT -1350 F This well is outside the 1/2 mile radius around ODSN-DW1 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, 0,DSDW1-44. i Pioneer Natural Resources Last Revised: Jan 10", 2013 ODSN-20i Permit To Drill Page 7 of 12 Pioneer Natural Resources Well Plan Summary Drilling Operations Pre -Rig Work 1. 16" Conductors have been set and the Well Bay modules have been placed. Rig Activity: Drill Surface, Intermediate 1 & Intermediate 2 and Set Casing 1. MIRU Nabors 19AC over pre -installed 16" conductor casing. 2. Nipple up spacer spools and riser. 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. L01- 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 ,k5, 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 -- chartand s� d 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 -12.0 ppg mud for shale stability. RD the MPD bearing assembly and RU MPD trip nipple. POOH. Pioneer Natural Resources Last Revised: Jan 10", 2013 ODSN-20i Permit To Drill Page 8 of 12 24. Change one set of pipe rams to 7" and test BOPE as required. ✓ 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" Longstring a) Run and cement the 7" 26# L-80 BTC-M intermediate casing. b) Bump the plug with kill weight brine and bring the pressure up to 3500 psi -hold for 5 minute pressure test. Release pressure and ensure floats are holding. c) LD 5" DP \ tJ Option #2: 7" Liner with Tie -Back Option .1 a) Run 7" 26# L-80 Hydril 563 intermediate liner on 5" DP. Set liner hanger, release from liner and cement. Bump the plug with kill weight brine and bring the pressure up to 3500 psi -hold and chart for 30 minute pressure test. • This will provide a quick integrity test of the 7" liner. • Note the pressure test in the morning report. b) 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. c) Set liner top packer and test the 9-518" 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 d) Displace well to kill weight brine and POOH with liner running string. e) Run 7" 26# L-80 BTC intermediate tie -back to 7" liner -hanger seal bore and space out. t) Displace diesel freeze protection down 7" annulus to 2, 000' tvd with annular preventer closed. g) Strip through annular preventer and sting into 7" liner -hanger seal bore and land tie -back casing. h) Pressure test seal assembly to 3500 psi -hold & chart for 30 minutes. w i) Pressure test 7' tie back annulus 3500 psi -hold and chart for 30 minutes. j) Set and test 7" pack -off. Rig Activitv: Operations Shutdown Op / E p 1. RIH with enough 3-1/2" or 2-7/8" tubing to allow for the circulation of diesel freeze protection fluid to -2000' TVDrkb. 2. Land the tubing and RILDS. Install TWC. 3. NU Tree and test. 4. Pull TWC. Circulate diesel freeze protection fluid surface to surface to freeze protect the well to -2000' TVDrkb 5. Temporarily suspend the well. RDMO. Note: The well will be temporarily suspended due well scheduling issues concerning seasonal drilling restrictions. Pioneer Natural Resources Last Revised: Jan 10t', 2013 ODSN-20i Permit To Drill Page 9 of 12 Rig Activity: Drill Lateral and Complete Well Note: ODSN-20i was temporary shutdown with 7" casing pressure tested to 3500 psi and charted. The 7" cement plug was bumped with kill weight brine. MIRU. RU circulation lines and circulate out the diesel freeze protection fluid and ensure the well is dead. 2. Install TWC. ND Tree and NU BOPE and test to 250/4500 psi — Notify AOGCC 48 hours in advance of test. 3. Pull circulation tubing string from the well. 4. RU MPD trip nipple & PU 4" DP as needed to TD the lateral hole section. 5. RIH to landing collar and w/ 4" DP & mill tooth cleanout bit. 6. Pressure test casing to 3500 psi for 5 minute pressure test. 7. Drill through Intermediate 2 shoe and POOH w/ cleanout assembly. 8. MU 6-1/8" RSS, MWD/LWD drilling assembly on 4" DP and RIH. 9. RD MPD trip nipple and RU bearing assembly. 10. Displace to drill -in -fluid for lateral hole. 11. Drill rathole + 20' of new hole and perform FIT to 12.5 ppg. 12. Drill 6-1/8" lateral lateral hole to TD. 13. Circulate and condition hole to run liner. 14. POH to intermediate shoe and set heavy weight balance brine pill. 15. RD MPD bearing assembly and RU MPD trip nipple. Cont POH to surface. 16. Change one set of pipe rams to 4-1/2" and test BOPE as required. 17. RIH w/ 4-1/2" injection liner w/ sliding sleeves, swell packers, and ported pups from 150' inside the intermediate shoe to TD. 18. Release from the liner and set the liner top packer. Displace the well over to heavy weight completion brine and POOH. 19. Run 3 %" injection completion string with packer, rock gauge, GLM, and SSSV to top of 4-1/2" liner seal bore. 20. Reverse circulate corrosion inhibited brine or diesel to freeze protect the well to —2000' TVD. 21. Sting 3 1/" injection completion string into the 4-1/2" liner seal bore. 22. 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. 23. RDMO to next well. Post -Rig Work 1. RU Slickline and pull the ball and rod. Pull the RHC-m plug. 2. RD Slickline. Pioneer Natural Resources Last Revised: Jan 10", 2013 ODSN-20i 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 % 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 % 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: Jan 10`h, 2013 ODSN-20i Permit To Drill Page 11 of 12 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 / Interval Maximum Influx Volume Mud Weight Exp Pore Press Min LOT / FIT 11-3/4" Surface / 10-5/8" x 11-3/4" 536 bbls 10.0-11.0 ppg 2431 12.5 ppg (LOT) 9-5/8" Drilling Liner / Infinite 9.8-10.5 ppg 3202 13.5 ppg (FIT), 8-1/2" x 9-1/2" 13.0 EMW w/MPD 7" Intermediate / 6-1/8" Infinite 7.2-8.2 ppg 9.8-10.2 EMW w/MPD 3168 12.5 ppg (FIT) 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 • Seismic faults with expected throws of 15-40' may be encountered. Losses may be associated with these faults. • Consult the ODS data sheet for additional information (still in development) Pioneer Natural Resources Last Revised: Jan 10t', 2013 ODSN-20i Permit To Drill Page 12 of 12 ODSN-20i Nuiqsut Injection Well Completion - Proposed Updated 01/10/13 I i 16" Conductor I Packer Fluid mix: Inhibited Kill weight Brine with 2000' TVD diesel cap 11-3/4" 60 ppf L-80 BTC-M Hydril 521 Surface Casing @ 4802' MD / 3219' TVD cemented to surface 9-5/8" 40 ppf L-80 Hydril 521 Intermediate 1 Casing @ 9598' MD / 5437' TVD i 3-1/2" 9.3 ppf L-80 IBT/TCII c� Tubing i i kEstimated above top of ruk 7" 26 ppf L-86 BTC-M + Hydril 563 Intermediate 2 Casing @ 11,968' MD / 6284' TVD 0 ------ ---a 4-'/2" Hydril 521 Liner with Pre -Perforated Pups spaced — 400 ft 6-1/8" Hole apart and isolated with oil activated Swell Packers (7 total) TD at 18,203' MD / 6216' TVD The following map shows the planned ODSN-20i surface casing point surrounded by and inbourd of the ODSN-24 & ODSN-25 surface casing points. 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N W S 9 Y O` W N e m m o U v o r To c a H 1 0 _W .aau N N 3 W $vo"L - $c� Cl O A w d U ❑ E E rn c o r n w�nwE w iL 2 C dT0 0 0 0 0 0 0 0 q 3 U ClCl0 0 0 0 0 0 0 0 y o o Q 0 W 0 m 0 N 0 0)(V m F N N M -It Q (u!fldsn 05LO 41da4 IeOIIJan anil °88 °06 O 5° z °06 °98 � O v p N d II Z U °09 r f °S9 / Z 0 0 O O) � C O j 00 0 LO o O r cD r M N O (h O O � r � O O U o 0 � U_ o � O ;N 0 v N C, M r PIONEER _ HALLIBURTION vFs; Jr=11� "-1,..>:,)i.Si-... Bperry Qri{ling '0%IPANY DETAILS: Well Planning - Pioneer-Ocoguruk Calculation Method: Minimum Curvature Error System: ISCWSA Scan Method: Tma . Cylinder North En or Surface: Elliptical Conic Warning Method: Rules Baacd Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Plan: ODSN-20 KE4 wp08 SURVEY PROGRAM Date: 2013-01-02T00:00:00 Validated: Yes Version: Depth From Depth To Survey/Plan Tool 42.7 750.0 ODSN-20 KE4wp08SRG-SS 750.0 4801.0 ODSN-20 KE4 wp08MWD+IFR2+MS+sag 4801.0 9597.0 ODSN-20 KE4wpO8MWD+IFR2+MS+sag 9597.0 11968.0 ODSN-20 KE4 wp08MWD+IFR2+MS+sag 11968.0 18202.8 ODSN-20 KE4 wp08MWD+IFR2+MS+sag 4 1/2" 11000 10000 N20 v2 t6 9000 8000 7000 c_ c� 7 O 6000 CD N 5000 0 Z 4000 0 U) ODSN-20 KE4 wp08 N20 v2 t5 N20 v2 t4 N20 v2 t3 5 N20 v2 t3 N20 v2 t2 7 N20 v2 t1 �� N20 V1 T1 0CP2, CASING DETAILS REFEREN( E INFORM I10 s TVD MID Name 3219.0 4801.6 11 3/4" 4 to 1N I I Relo-ce: Well ODSN-20, True North 5436.7 9597.5 9 5/8" :4-1/2 venleal Nk-u-I (ret1) Rele,cncer Depw Reverence: 42 7 + 13.5' C 56.2usn (Nabors 19AC) 427' + 13.5' C 56.2usa (Nabors 19AC) 6284.111968.0 7" CakutaW�n \1ohod: N6nmm"n cunalurc 6216.218202.8 41/2" SECTION DETAILS Sec MD Inc Azi TVD +N/-S +E/-W Dleg TFace VSect Target 1 42.7 0.00 0.00 42.7 0.0 0.0 0.00 0.00 0.0 2 225.0 0.00 310.00 225.0 0.0 0.0 0.00 310.00 0.0 3 1025.0 20.00 310.00 1008.9 88.8 -105.9 2.50 310.00 138.1 4 2725.7 62.46 306.07 2259.0 750.3 -978.5 2.50 -5.16 1228.6 5 10921.9 62.46 306.07 6049.1 5029.1-6852.6 0.00 0.00 8452.2 6 11668.9 85.00 319.98 6258.0 5517.5-7368.6 3.50 32.92 9162.5 7 11968.9 85.00 319.98 6284.2 5746.4-7560.7 0.00 0.00 9458.7 N20 V1 T1 (ICP2) 8 12002.6 86.01 319.98 6286.8 5772.1-7582.4 3.00 0.12 9492.0 9 12717.7 86.01 319.98 6336.6 6318.5-8041.1 0.00 0.00 10199.1 10 12850.7 90.00 319.95 6341.2 6420.2-8126.5 3.00 -0.38 10330.8 N20 v2 t2 11 13009.0 94.75 319.95 6334.6 6541.2-8228.3 3.00 0.00 10487.5 12 13473.2 94.75 319.95 6296.2 6895.4-8525.9 0.00 0.00 10946.1 13 13882.0 90.88 318.64 6276.1 7204.9-8792.2 1.00-161.22 11351.4 14 14471.3 90.88 318.64 6267.1 7647.1-9181.5 0.00 0.00 11937.0 15 14542.7 90.56 318.00 6266.2 7700.4-9229.0 1.00-116.50 12008.0 N20 v2 t3 16 14576.5 90.54 317.49 6265.9 7725.4-9251.7 1.52 -92.28 12041.7 17 14950.7 90.54 317.49 6262.4 8001.3-9504.6 0.00 0.00 12414.3 18 15195.3 90.00 320.00 6261.2 8185.1-9665.9 1.05 102.11 12657.4 N20 v2 t3.5 19 15283.8 89.98 320.88 6261.2 8253.3-9722.2 1.00 91.18 12745.0 20 15854.1 89.98 320.88 6261.4 8695.8-10082.0 0.00 0.00 13309.0 21 16091.6 87.70 321.54 6266.2 8880.9-10230.8 1.00 163.99 13543.6 N20 v2 t4 22 16107.1 87.55 321.56 6266.8 8893.0-10240.4 1.00 172.86 13558.9 23 16964.2 87.55 321.56 6303.5 9563.8-10772.8 0.00 0.00 14404.2 24 17088.0 90.00 321.24 6306.2 9660.5-10850.0 2.00 -7.47 14526.4 N20 v2 t5 25 17254.9 95.01 321.24 6298.9 9790.4-10954.3 3.00 -0.01 14691.1 26 18202.8 95.01 321.24 6216.2 10526.7-11545.6 0.00 0.00 15624.1 N20 v2 t6 ANNOTATIONS TVD MD Inc Azi +N/-S +E/-W VSect Departure Annotation 225.0 225.0 0.00 310,00 0.0 0.0 0.0 0.0 Start Dir 25"/100': 225' MD, 225'TVD: 310 RT 2259.0 2725.7 62.46 306.07 750.3 -978.5 1228.6 1233.4 End Dir 2725.7' MD, 2259' TVD 6049.1 10921.9 62.46 306.07 5029.1-6852.6 8452.2 8500.6 Start Dir 3.F/100': 10921.9' MD, 6049.2'TVD 6258.0 11668.9 85,00 319.98 5517.5-7368.6 9162.5 9212.8 End Dir 11668.9' MD, 6258' TVD 6284.2 11968.9 85.00 319.98 5746.4-7560.7 9458.7 9511.7 Start Dir 3°/100': 11968.9' MD, 6284.2'TVD 6286.8 12002.6 86.01 319,98 5772.1 -7582A 9492.0 9545.3 End Dir: 12002.6' MD, 6286.8' TVD 6336.6 12717.7 86.01 319.98 6318.5-8041.1 10199.1 10258.6 Start Dir 3°/100': 12717.7' MD, 6336.6'TVD 6334.6 13009.0 94.75 319.95 6541.3-8228.3 10487.5 10549.7 End Dir: 13009' MD, 6334.6' TVD 6296.2 13473.2 94.75 319.95 6895A-8525.9 10946.1 11012.3 Start Dir 1°/100': 13473.2' MD, 6296.2'TVD 6276.1 13882.5 90.88 318.64 7205.2-8792.5 11351.8 11421.0 End Dir: 138825' MD, 6276.1' TVD 6267.1 14472.4 90.87 318.63 7647.9-9182.3 11938A 12010.8 Start Dir 1°/100': 144724' MD, 6267.1'TVD 6266.2 14542.6 90.56 318.00 7700.3-9228.9 12007.9 12081.0 Start Dir 1.52°/100': 14542.6' MD, 6266.2'TVD 6265.9 14574.5 90.54 317.52 7724.0-9250.4 12039.7 12112.9 End Dir 14574.5' MD, 6265.9' TVD 6262.3 14953.5 90.53 317.52 8003.3-9506.5 12417.1 12491.9 Start Dir 1.05°/100': 14953.5' MD, 62623'TVD 6261.2 15195.3 90.00 320,00 8185.1-9665.9 12657.4 12733.7 Start Dir 1°/100': 15195.3' MD, 6261.2'TVD 6261.2 15283.9 89.98 320.88 8253.4-9722.3 12745.1 12822.3 End Dir: 15283.9' MD, 6261.2' TVD 6261.4 15854.1 89.98 320,88 8695.8-10082.0 13309.0 13392.5 Start Dir 10/100': 15854.1' MD, 6261.4'TVD 6266.8 16107.1 87.55 321 56 8893.0-10240.4 13558.9 13645.4 End Dir 16107. 1' MD, 6266.8, TVD 6303.5 16964.2 87.55 321.56 9563.7-10772.8 14404.2 14501.7 Start Dir 2°/100': 16964.2' MD, 6303.5'TVD 6306.2 17088.0 90.00 321.24 9660.5-10850.0 14526.4 14625.5 Start Dir 3°/100': 17088' MD, 6306.2TVD 6298.9 17254.9 95.01 321.24 9790.4-10954.4 14691.1 14792.2 End Dir: 17254.9' MD, 6298.9' TVD 6216.2 18202.6 95.01 321.24 10526.6-11545.5 15623.9 15736.3 Total Depth: 18202.8' MD, 6216.2' TVD 9 5/8" To view Annotations on wellbore refer to Section View, 3000 WELL DETAILS: ODSN-20 11 3/4" 2000 +N/-S +E/-W Northing Ground Level: Easting 13.5 Latitude Longitude Slot 0.0 0.0 6031033.50 469803.59 70° 29' 45.078 N 150' 14' 48.891 W 1000 WELLBORE TARGET DETAILS (MAP CO-ORDINATES) Name TVD +N/-S +E/-W Northing Easting Shape N20 v2 t6 6216.2 10526.7 -11545.6 6041606.00 458302.00 Point N20 v2 t3.5 6261.2 8185.1 -9665.9 6039257.00 460172.00 Point 0 N20 v2 t3 6266.2 7713.9 -9213.9 6038784.00 460622.00 Point N20 v2 t4 6266.2 8880.9 -10230.8 6039955.00 459610.00 Point N20 V1 T1 (ICP2) 6284.2 5746.4 -7560.7 6036810.00 462267.00 Point N20 v2 t5 6306.2 9660.5 -10850.0 6040737.00 458994.00 Point N20 v2 t1 6341.2 5746.4 -7560.7 6036810.00 462267.00 Point N20 v2 t2 6341.2 6420.2 -8126.5 6037486.00 461704.00 Point -1000 12000 -11000 -10000 -9000 -8000 -7000 -6000 -5000 -4000 -3000 -2000 -1000 West( -)/East(+) (2000 usft/in) 0 DD1= 6.74 HALLIBURTON Database: EDMAKPRD Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Pioneer Natural Resources Standard Proposal Report Local Co-ordinate Reference: Well ODSN-20 TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) North Reference: True Survey Calculation Method: Minimum Curvature 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: From: Map Easting: Position Uncertainty: 0.0 usft Slot Radius: Well ODSN-20 Well Position +N/-S 0.0 usft Northing: +E/-W 0.0 usft Easting: Position Uncertainty 0.0 usft Wellhead Elevation Wellbore ODSN-20 KE4 Magnetics Model Name Sample Date IGR F200510 12/31 /2009 Design ODSN-20 KE4 wp08 Audit Notes: 6.031.151.32 usft Latitude: 469.920.45usft Longitude: 13-3/16" Grid Convergence: 6,031,033.50usfi Latitude: 469,803.59 usfi Longitude: usfi Ground Level: Declination Dip Angle (°) (°) 21.99 80.81 Version: Phase: PLAN Tie On Depth: 42.7 Vertical Section: Depth From (TVD) +N/-S +E/-W Direction (usft) (usft) (usft) (°) 42.7 0.0 0.0 312.36 70` 29' 46.242 N 150' 14' 45.465 W -0.23 ' 70` 29' 45.078 N 150° 14' 48.891 W 13.5 usft Field Strength (nT) 57.759 11412013 9:21:58AM Page 2 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +N/-S +E/-W Rate Rate Rate Tool Face (usft) (°) (°) (usft) usft (usft) (usft) (°/100usft) (°/100usft) (°/100usft) (°) 42.7 0.00 0.00 42.7 -13.5 0.0 0.0 0.00 0.00 0.00 0.00 225.0 0.00 310.00 225.0 168.8 0.0 0.0 0.00 0.00 0.00 310.00 1,025.0 20.00 310.00 1,008.9 952.7 88.8 -105.9 2.50 2.50 0.00 310.00 2,725.7 62.46 306.07 2,259.0 2,202.8 750.3 -978.5 2.50 2.50 -0.23 -5.16 10,921.9 62,46 306.07 6,049.1 5,992.9 5,029.1 -6,852.6 0.00 0.00 0.00 0.00 11,668.9 85.00 319.98 6,258.0 6,201.8 5,517.5 -7,368.6 3.50 3.02 1.86 32.92 11,968.9 85.00 319.98 6.284.2 6228.0 5,746.4 -7,560.7 0.00 0.00 0.00 0.00 12.002.6 86.01 319.98 6.286.8 6,230.6 5,772.1 -7,582.4 3.00 3.00 0.01 0.12 12.717.7 86.01 319.98 6,336.6 6,280.4 6,318.5 -8.041.1 0.00 0.00 0.00 0.00 12.850.7 90.00 319.95 6,341.2 6,285.0 6,420.2 -8.126.5 3.00 3.00 -0.02 -0.38 13.009.0 94.75 319.95 6,334.6 6,278.4 6,541.2 -8,228.3 3.00 3.00 0.00 0.00 13,473.2 94.75 319.95 6,296.2 6,240.0 6,895.4 -8,525.9 0.00 0.00 0.00 0.00 13,882.0 90.88 318.64 6,276.1 6,219.9 7,204.9 -8,792.2 1.00 -0.95 -0.32 -161.22 14,471.3 90.88 318.64 6,267.1 6,210.9 7,647.1 -9,181.5 0.00 0.00 0.00 0.00 14,542.7 90.56 318.00 6,266.2 6,210.0 7,700.4 -9,229.0 1.00 -0.45 -0.89 -116.50 14,576.5 90.54 317.49 6,265.9 6,209.7 7,725.4 -9,251.7 1.52 -0.06 -1.52 -92.28 14,950.7 90.54 317.49 6,262.4 6,206.2 8,001.3 -9,504.6 0.00 0.00 0.00 0.00 15,195.3 90.00 320.00 6,261.2 6,205.0 8,185.1 -9,665.9 1.05 -0.22 1.03 102.11 15,283.8 89.98 320.88 6,261.2 6,205.0 8,253.3 -9,722.2 1.00 -0.02 1.00 91.18 15,854.1 89.98 320.88 6,261.4 6,205.2 8,695.8 -10,082.0 0.00 0.00 0.00 0.00 16,091.6 87.70 321.54 6,266.2 6,210.0 8,880.9 -10,230.8 1.00 -0.96 0.28 163.99 16,107.1 87.55 321.56 6,266.8 6,210.6 8,893.0 -10,240.4 1.00 -0.99 0.12 172.86 16,964.2 87.55 321.56 6,303.5 6247.3 9,563.8 -10,772.8 0.00 0.00 0.00 0.00 17,088.0 90.00 321.24 6,306.2 6,250.0 9,660.5 -10,850.0 2.00 1.98 -0.26 -7.47 17,254.9 95.01 321.24 6,298.9 6,242.7 9,790.4 -10,954.3 3.00 3.00 0.00 -0.01 18,202.8 95.01 321.24 6,216.2 6,160.0 10,526.7 -11,545.6 0.00 0.00 0.00 0.00 / 11412013 9:21:58AM Page 3 COMPASS 5000.1 Build 61 HALLIBURTON Database: EDMAKPRD Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Depth Inclination Azimuth Depth TVDss (usft) C) (1) (usft) usft 42.7 0.00 0.00 42.7 -13.5 100.0 0.00 310.00 100.0 43.8 200.0 0.00 310.00 200.0 143.8 225.0 0.00 310.00 225.0 168.8 Start Dir 2.5°/100': 225' MD, 225'TVD: 310' RT TF 300.0 1.88 310.00 300.0 243.8 400.0 4.38 310.00 399.8 343.6 500.0 6.88 310.00 499.3 443.1 600.0 9.38 310.00 598.3 542.1 700.0 11.88 310.00 696.6 640.4 800.0 14.38 310.00 794.0 737.8 861.1 15.90 310.00 853.0 796.8 Top of Permafrost 900.0 16.88 310.00 890.3 834.1 1,000.0 19.38 310.00 985.3 929.1 1,025.0 20.00 310.00 1,008.9 952.7 1,100.0 21.87 309.55 1,078.9 1,022.7 1,200.0 24.36 309.05 1,170.9 1,114.7 1,300.0 26.85 308.63 1,261.0 1,204.8 1,400.0 29.35 308.29 1,349.2 1,293.0 1,500.0 31.84 307.99 1,435.3 1,379.1 1,600.0 34.34 307.73 1,519.1 1,462.9 1,700.0 36.84 307.50 1,600.4 1,544.2 1,785.7 38.98 307.33 1,668.0 1,611.8 Base of Permafrost 1,800.0 39.33 307.30 1,679.1 1,622.9 1,844.2 40.44 307.22 1,713.0 1,656.8 Ugnu D 1,900.0 41.83 307.12 1,755.0 1,698.8 2,000.0 44.33 306.96 1,828.1 1,771.9 2,100.0 46.83 306.80 1,898.1 1,841.9 2,200.0 49.32 306.67 1,964.9 1,908.7 2,300.0 51.82 306.54 2,028.4 1,972.2 2,400.0 54.32 306.42 2,088.5 2,032.3 2,500.0 56.82 306.30 2,145.0 2,088.8 2,600.0 59.32 306.20 2,197.9 2,141.7 2,700.0 61.81 306.10 2,247.0 2,190.8 2,725.7 62.46 306.07 2,259.0 2,202.8 End Dir: 2725.7' MD, 2259' TVD 2,764.7 62.46 306.07 2,277.1 2,220.9 Top West Salk 2,800.0 62.46 306.07 2,293.4 2,237.2 2,900.0 62.46 306.07 2,339.6 2,283.4 3,000.0 62.46 306.07 2,385.9 2,329.7 3,100.0 62.46 306.07 2,432.1 2,375.9 Local Co-ordinate Reference TVD Reference: MD Reference: North Reference: Survey Calculation Method: Pioneer Natural Resources Standard Proposal Report Well ODSN-20 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 42.7' + 13.5' @ 56.2usft (Nabors 19AC) True Minimum Curvature Map Map +N/-S +E/-W Northing Easting DLS Vert Section (usft) (usft) (usft) (usft) -13.50 0.0 0.0 6,031.033.50 469,803.59 0.00 0.00 0.0 0.0 6,031,033.50 469,803.59 0.00 0.00 0.0 0.0 6,031.033.50 469,803.59 0.00 0.00 0.0 0.0 6.031.033.50 469.803.59 0.00 0.00 0.8 -0.9 6.031,034.29 469.802.65 2.50 1.23 4.3 -5.1 6,031.037.81 469.798.49 2.50 6.67 10.6 -12.6 6,031,044.14 469.791.01 2.50 16.47 19.7 -23.4 6.031,053.27 469,780.22 2.50 30.59 31.5 -37.6 6,031,065.18 469,766.15 2.50 49.01 46.1 -55.0 6,031,079.84 469,748.81 2.50 71.69 56.4 -67.2 6,031,090.15 469,736.63 2.50 87.65 63.4 -75.6 6,031,097.24 469,728.26 2.50 98.60 83.4 -99.4 6,031,117.33 469,704.51 2.50 129.68 88.8 -105.9 6,031,122.76 469,698.08 2.50 138.10 106.0 -126.5 6,031,139.99 469,677.56 2.50 164.87 130.8 -156.9 6,031,164.96 469,647.28 2.50 204.06 157.9 -190.5 6,031,192.19 469,613.73 2.50 247.20 187.2 -227.4 6,031,221.63 469,576.97 2.50 294.19 218.7 -267.4 6,031,253.22 469,537.07 2.50 344.94 252.2 -310.5 6,031,286.89 469,494.10 2.50 399.37 287.7 -356.6 6,031,322.59 469,448.16 2.50 457.36 319.7 -398.4 6,031,354.74 469,406.48 2.50 509.80 325.1 -405.6 6,031,360.25 469,399.32 2.50 518.81 342.3 -428.2 6,031,377.49 469,376.84 2.50 547.02 364.5 -457.4 6,031,399.79 469,347.67 2.50 583.59 405.6 -512.0 6,031,441.14 469,293.33 2.50 651.60 448.5 -569.1 6,031,484.23 469,236.39 2.50 722.68 493.0 -628.7 6,031,528.96 469,176.95 2.50 796.72 539.0 -690.7 6,031,575.26 469,115.14 2.50 873.57 586.5 -755.0 6,031,623.03 469,051.06 2.50 953.08 635.4 -821.4 6,031,672.19 468,984.85 2.50 1,035.10 685.6 -889.8 6,031,722.64 468,916.63 2.50 1,119.48 737.0 -960.2 6,031,774.29 468,846.52 2.50 1,206.05 750.3 -978.5 6,031,787.74 468,828.22 2.50 1,228.64 770.7 -1,006.5 6,031,808.20 468,800.37 0.00 1,262.99 789.1 -1,031.8 6,031,826.74 468,775.13 0.00 1,294.12 841.3 -1,103.4 6,031,879.23 468,703.68 0.00 1,382.25 893.5 -1,175.1 6,031,931.72 468,632.23 0.00 1,470.39 945.7 -1,246.8 6,031,984.21 468,560.78 0.00 1,558.52 11412013 9:21:58AM Page 4 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (usft) V) V) (usft) usft (usft) (usft) (usft) (usft) 2,422.16 3,200.0 62.46 306.07 2,478.4 2,422.2 998.0 -1,318.4 6,032,036.70 468,489.33 0.00 1,646.65 3,300.0 62.46 306.07 2,524.6 2,468.4 1,050.2 -1,390.1 6,032,089.19 468,417.89 0.00 1,734.78 3,400.0 62.46 306.07 2,570.8 2,514.6 1,102.4 -1,461.8 6,032,141.68 468,346.44 0.00 1,822.92 3,500.0 62.46 306.07 2,617.1 2,560.9 1,154.6 -1,533.5 6,032,194.17 468,274.99 0.00 1,911.05 3,600.0 62.46 306.07 2,663.3 2,607.1 1,206.8 -1,605.1 6,032,246.66 468,203.54 0.00 1,999.18 3,700.0 62.46 306.07 2,709.6 2,653.4 1,259.0 -1,676.8 6,032,299.15 468,132.09 0.00 2,087.32 3,800.0 62.46 306.07 2,755.8 2,699.6 1,311.2 -1,748.5 6,032,351.64 468,060.64 0.00 2,175.45 3,900.0 62.46 306.07 2,802.1 2,745.9 1,363.4 -1,820.1 6,032,404.13 467,989.19 0.00 2,263.58 4,000.0 62.46 306.07 2,848.3 2,792.1 1,415.6 -1,891.8 6,032,456.62 467,917.74 0.00 2,351.71 4,100.0 62.46 306.07 2,894.5 2,838.3 1,467.8 -1,963.5 6,032,509.11 467,846.30 0.00 2,439.85 4,123.0 62.46 306.07 2,905.2 2,849.0 1,479.8 -1,979.9 6,032,521.17 467,829.89 0.00 2,460.08 Cret tuffs 4,200.0 62.46 306.07 2,940.8 2,884.6 1,520.0 -2,035.1 6,032,561.60 467,774.85 0.00 2,527.98 4,300.0 62.46 306.07 2,987.0 2,930.8 1,572.2 -2,106.8 6,032,614.09 467,703.40 0.00 2,616.11 4,400.0 62.46 306.07 3,033.3 2,977.1 1,624.4 -2,178.5 6,032,666.58 467,631.95 0.00 2,704.25 4,500.0 62.46 306.07 3,079.5 3,023.3 1,676.6 -2,250.1 6,032,719.07 467,560.50 0.00 2,792.38 4,600.0 62.46 306.07 3,125.8 3,069.6 1,728.8 -2,321.8 6,032,771.56 467,489.05 0.00 2,880.51 4,700.0 62.46 306.07 3,172.0 3,115.8 1,781.0 -2,393.5 6,032,824.05 467,417.60 0.00 2,968.64 4,781.4 62.46 306.07 3,209.6 3,153.4 1,823.5 -2,451.8 6,032,866.78 467,359.44 0.00 3,040.39 Hue 2 shale 4,800.0 62.46 306.07 3,218.2 3,162.0 1,833.2 -2,465.1 6,032,876.54 467,346.15 0.00 3,056.78 4,801.6 62.46 306.07 3,219.0 3,162.8 1,834.1 -2,466.3 6,032,877.41 467,344.98 0.00 3,058.23 11 3/4" 4,900.0 62.46 306.07 3,264.5 3,208.3 1,885.4 -2,536.8 6,032,929.03 467,274.71 0.00 3,144.91 5,000.0 62.46 306.07 3,310.7 3,254.5 1,937.6 -2,608.5 6,032,981.52 467,203.26 0.00 3,233.04 5,100.0 62.46 306.07 3,357.0 3,300.8 1,989.8 -2,680.2 6,033,034.01 467,131.81 0.00 3,321.17 5,200.0 62.46 306.07 3,403.2 3,347.0 2,042.0 -2,751.8 6,033,086.50 467,060.36 0.00 3,409.31 5,300.0 62.46 306.07 3,449.4 3,393.2 2,094.2 -2,823.5 6,033,138.99 466,988.91 0.00 3,497.44 5,400.0 62.46 306.07 3,495.7 3,439.5 2,146.5 -2,895.2 6,033,191.48 466,917.46 0.00 3,585.57 1 5,500.0 62.46 306.07 3,541.9 3,485.7 2,198.7 -2,966.8 6,033,243.97 466,846.01 0.00 3,673.71 5,600.0 62.46 306.07 3,588.2 3,532.0 2,250.9 -3,038.5 6,033,296.46 466,774.56 0.00 3,761.84 5,700.0 62.46 306.07 3,634.4 3,578.2 2,303.1 -3,110.2 6,033,348.95 466,703.12 0.00 3,849.97 5,800.0 62.46 306.07 3,680.7 3,624.5 2,355.3 -3,181.8 6,033,401.44 466,631.67 0.00 3,938.10 5,900.0 62.46 306.07 3,726.9 3,670.7 2,407.5 -3,253.5 6,033,453.93 466,560.22 0.00 4,026.24 6,000.0 62.46 306.07 3,773.1 3,716.9 2,459.7 -3,325.2 6,033,506.42 466,488.77 0.00 4,114.37 6,100.0 62.46 306.07 3,819.4 3,763.2 2,511.9 -3,396.8 6,033,558.91 466,417.32 0.00 4,202.50 6,200.0 62.46 306.07 3,865.6 3,809.4 2,564.1 -3,468.5 6,033,611.40 466,345.87 0.00 4,290.64 6,300.0 62.46 306.07 3,911.9 3,855.7 2,616.3 -3,540.2 6,033,663.89 466,274.42 0.00 4,378.77 6,400.0 62.46 306.07 3,958.1 3,901.9 2,668.5 -3,611.8 6,033,716.38 466,202.97 0.00 4,466.90 6,500.0 62.46 306.07 4,004.4 3,948.2 2,720.7 -3,683.5 6,033,768.87 466,131.53 0.00 4,555.03 6,600.0 62.46 306.07 4,050.6 3,994.4 2,772.9 -3,755.2 6,033,821.36 466,060.08 0.00 4,643.17 6,700.0 62.46 306.07 4,096.8 4,040.6 2,825.1 -3,826.8 6,033,873.85 465,988.63 0.00 4,731.30 6,800.0 62.46 306.07 4,143.1 4,086.9 2,877.3 -3,898.5 6,033,926.34 465,917.18 0.00 4,819.43 6,900.0 62.46 306.07 4,189.3 4,133.1 2,929.5 -3,970.2 6,033,978.83 465,845.73 0.00 4,907.57 7,000.0 62.46 306.07 4,235.6 4,179.4 2,981.7 -4,041.9 6,034,031.32 465,774.28 0.00 4,995.70 11412013 9:21:58AM Page 5 COMPASS 5000.1 Build 61 HALLIBURTON Database: EDMAKPRD Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Depth Inclination Azimuth (usft) (°) (°) 7.100.0 62.46 306.07 7,119.4 62.46 306.07 Brookian 2B 7,200.0 62.46 306.07 7,300.0 62.46 306.07 7,400.0 62.46 306.07 7.500.0 62.46 306.07 7,600.0 62.46 306.07 7,700.0 62.46 306.07 7,800.0 62.46 306.07 7,900.0 62.46 306.07 8.000.0 62.46 306.07 8,100.0 62.46 306.07 8,200.0 62.46 306.07 8,300.0 62.46 306.07 8,400.0 62.46 306.07 8,500.0 62.46 306.07 8,600.0 62.46 306.07 8,673.0 62.46 306.07 Top Torok Sand 8,700.0 62.46 306.07 8,800.0 62.46 306.07 8,900.0 62.46 306.07 9,000.0 62.46 306.07 9,100.0 62.46 306.07 9,160.4 62.46 306.07 Base Torok Sand 9,200.0 62.46 306.07 9,300.0 62.46 306.07 9,400.0 62.46 306.07 9,500.0 62.46 306.07 9,586.7 62.46 306.07 Torok 1 Shale 9,597.5 62.46 306.07 9 5/81, 9,600.0 62.46 306.07 9,700.0 62.46 306.07 9,800.0 62.46 306.07 9,900.0 62.46 306.07 10,000.0 62.46 306.07 10,100.0 62.46 306.07 10,200.0 62.46 306.07 10,300.0 62.46 306.07 10,400.0 62.46 306.07 10,500.0 62.46 306.07 Local Co-ordinate Reference TVD Reference: MD Reference: North Reference: Survey Calculation Method: Pioneer Natural Resources Standard Proposal Report Well ODSN-20 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 42.7' + 13.5' @ 56.2usft (Nabors 19AC) True Minimum Curvature Vertical Map Map Depth TVDss +NI-S +El-W Northing Easting DLS Vert Section (usft) usft (usft) (usft) (usft) (usft) 4,225.61 4281.8 4.225.6 3.033.9 -4,113.5 6.034,083.81 465,702.83 0.00 5,083.83 4,290.8 4.234.6 3,044.1 -4,127.5 6,034,094.02 465,688.94 0.00 5,100.97 4,328.0 4.271.8 3,086.1 -4,185.2 6,034,136.30 465.631.38 0.00 5,171.96 4,374.3 4.318.1 3,138.3 -4.256.9 6,034,188.79 465,559.94 0.00 5,260.10 4,420.5 4.364.3 3.190.5 -4,328.5 6,034,241.28 465,488.49 0.00 5,348.23 4,466.8 4.410.6 3.242.7 -4,400.2 6,034,293.77 465,417.04 0.00 5.436.36 4.513.0 4,456.8 3,294.9 -4,471.9 6,034,346.26 465.345.59 0.00 5,524.49 4,559.3 4,503.1 3,347.2 -4.543.5 6,034,398.75 465,274.14 0.00 5,612.63 4,605.5 4,549.3 3.399.4 -4,615.2 6,034,451.24 465,202.69 0.00 5,700.76 4,651.7 4,595.5 3,451.6 -4,686.9 6,034,503.73 465,131.24 0.00 5,788.89 4,698.0 4,641.8 3,503.8 -4,758.5 6,034,556.22 465,059.79 0.00 5,877.03 4,744.2 4,688.0 3,556.0 -4,830.2 6,034,608.71 464,988.35 0.00 5,965.16 4,790.5 4,734.3 3,608.2 -4,901.9 6,034,661.20 464,916.90 0.00 6,053.29 4,836.7 4,780.5 3,660.4 -4,973.5 6,034,713.69 464,845.45 0.00 6,141.42 4,883.0 4,826.8 3,712.6 -5,045.2 6,034,766.18 464,774.00 0.00 6,229.56 4,929.2 4,873.0 3,764.8 -5,116.9 6,034,818.67 464,702.55 0.00 6,317.69 4,975.4 4,919.2 3,817.0 -5,188.5 6,034,871.16 464,631.10 0.00 6,405.82 5,009.2 4,953.0 3,855.1 -5,240.9 6,034,909.48 464,578.94 0.00 6,470.17 5,021.7 4,965.5 3,869.2 -5,260.2 6,034,923.65 464,559.65 0.00 6,493.96 5,067.9 5,011.7 3,921.4 -5,331.9 6,034,976.14 464,488.20 0.00 6,582.09 5,114.2 5,058.0 3,973.6 -5,403.6 6,035,028.63 464,416.76 0.00 6,670.22 5,160.4 5,104.2 4,025.8 -5,475.2 6,035,081.12 464,345.31 0.00 6,758.35 5,206.6 5,150.4 4,078.0 -5,546.9 6,035,133.61 464,273.86 0.00 6,846.49 5,234.6 5,178.4 4,109.6 -5,590.2 6,035,165.33 464,230.67 0.00 6,899.76 5,252.9 5,196.7 4,130.2 -5,618.6 6,035,186.10 464,202.41 0.00 6.934.62 5,299.1 5,242.9 4,182.4 -5,690.2 6,035,238.59 464,130.96 0.00 7,022.75 5,345.4 5,289.2 4,234.6 -5,761.9 6,035,291.08 464,059.51 0.00 7,110.88 5,391.6 5,335.4 4,286.8 -5,833.6 6,035,343.57 463,988.06 0.00 7,199.02 5,431.7 5,375.5 4,332.1 -5,895.7 6,035,389.07 463,926.13 0.00 7,275.41 5,436.7 5,380.5 4,337.7 -5,903.4 6,035,394.74 463,918.40 0.00 7,284.94 5,437.9 5,381.7 4,339.0 -5,905.2 6,035,396.06 463,916.61 0.00 7,287.15 5,484.1 5,427.9 4,391.2 -5,976.9 6,035,448.55 463,845.17 0.00 7,375.28 5,530.3 5,474.1 4,443.4 -6,048.6 6,035,501.04 463,773.72 0.00 7,463.42 5,576.6 5,520.4 4,495.6 -6,120.2 6,035,553.53 463,702.27 0.00 7,551.55 5,622.8 5,566.6 4,547.9 -6,191.9 6,035,606.02 463,630.82 0.00 7,639.68 5,669.1 5,612.9 4,600.1 -6,263.6 6,035,658.51 463,559.37 0.00 7,727.81 5,715.3 5,659.1 4,652.3 -6,335.2 6,035,711.00 463,487.92 0.00 7,815.95 5,761.6 5,705.4 4,704.5 -6,406.9 6,035,763.49 463,416.47 0.00 7,904.08 5,807.8 5,751.6 4,756.7 -6,478.6 6,035,815.98 463,345.02 0.00 7,992.21 5,854.0 5,797.8 4,808.9 -6,550.2 6,035,868.46 463,273.58 0.00 8,080.35 11412013 9:21.58AM Page 6 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (usft) (1) (1) (usft) usft (usft) (usft) (usft) (usft) 5,826.30 10,561.5 62.46 306.07 5,882.5 5.826.3 4,841.0 -6,594.4 6.035,900.77 463,229.60 0.00 8,134.59 Top HRZ 10,600.0 62.46 306.07 5,900.3 5,844.1 4,861.1 -6,621.9 6.035,920.95 463,202.13 0.00 8,168.48 10.700.0 62.46 306.07 5,946.5 5.890.3 4,913.3 -6,693.6 6,035,973.44 463,130.68 0.00 8,256.61 10,800.0 62.46 306.07 5,992.8 5,936.6 4,965.5 -6,765.3 6,036,025.93 463.059.23 0.00 8,344.74 10.848.5 62.46 306.07 6,015.2 5,959.0 4,990.8 -6,800.0 6.036,051.40 463.024.56 0.00 8,387.50 Base HRZ (Top Kalubik Sh) 10.900.0 62.46 306.07 6,039.0 5.982.8 5,017.7 -6,836.9 6,036,078.42 462,987.78 0.00 8,432.88 10.921.9 62.46 306.07 6,049.1 5,992.9 5,029.1 -6,852.6 6,036,089.92 462,972.13 0.00 8.452.18 Start Dir 3.5°/100': 10921.9' MD, 6049.2'TVD 11.000.0 64.76 307.71 6,083.8 6.027.6 5,071.1 -6,908.6 6,036,132.14 462,916.37 3.50 8,521.81 11,054.5 66.38 308.82 6,106.4 6,050.2 5,101.9 -6,947.5 6,036,163.04 462.877.53 3.50 8,571.33 Kalubik Marker 11,100.0 67.74 309.73 6,124.1 6,067.9 5,128.4 -6,979.9 6,036,189.68 462,845.22 3.50 8,613.14 11,200.0 70.73 311.65 6.159.6 6,103.4 5,189.3 -7,050.8 6,036,250.92 462,774.60 3.50 8,706.59 11,253.8 72.36 312.66 6,176.6 6,120.4 5,223.6 -7,088.6 6,036,285.31 462,736.94 3.50 8,757.59 Top Kuparuk C 11,300.0 73.75 313.51 6,190.1 6,133.9 5,253.8 -7,120.9 6,036,315.65 462,704.77 3.50 8,801.81 11,334.4 74.80 314.14 6,199.4 6,143.2 5,276.7 -7,144.8 6,036,338.67 462,680.97 3.50 8,834.92 LCU (Top Miluveach Sh) 11,400.0 76.79 315.32 6,215.5 6,159.3 5,321.5 -7,190.0 6,036,383.60 462,635.99 3.50 8,898.45 11,500.0 79.83 317.08 6,235.8 6,179.6 5,392.1 -7,257.7 6,036,454.54 462,568.52 3.50 8,996.14 11,600.0 82.89 318.80 6,250.8 6,194.6 5,465.5 -7,324.0 6,036,528.20 462,502.61 3.50 9,094.52 11,668.9 85.00 319.98 6,258.0 6,201.8 5,517.5 -7,368.6 6,036,580.39 462,458.23 3.50 9,162.51 End Dir: 11668.9' MD, 6258' TVD 11,700.0 85.00 319.98 6,260.8 6,204.6 5,541.3 -7,388.5 6,036,604.19 462,438.41 0.00 9,193.22 11,721.2 85.00 319.98 6,262.E 6,206.4 5,557.4 -7,402.1 6,036,620.42 462,424.89 0.00 9,214.15 BCU (Top Kingak Sh) 11,800.0 85.00 319.98 6,269.5 6,213.3 5,617.6 -7,452.5 6,036,680.73 462,374.66 0.00 9,291.96 11,893.3 85.00 319.98 6,277.6 6,221.4 5,688.7 -7,512.3 6,036,752.15 462,315.18 0.00 9,384.09 Top Nuiqsut 11,900.0 85.00 319.98 6,278.2 6,222.0 5,693.8 -7,516.6 6,036,757.27 462,310.91 0.00 9,390.70 11,924.3 85.00 319.98 6,280.3 6,224.1 5,712.4 -7,532.2 6,036,775.86 462,295.43 0.00 9,414.68 Nuiqsut 1 11,968.0 85.00 319.98 6,284.1 6,227.9 5,745.7 -7,560.2 6,036,809.32 462,267.57 0.00 9,457.84 7 11,968.9 85.00 319.98 6,284.2 6,228.0 5,746.4 -7,560.7 6,036,810.01 462,266.99 0.00 9,458.73 Start Dir 3°/100': 11968.9' MD, 6284.2'TVD 12,002.6 86.01 319.98 6,286.8 6,230.6 5,772.1 -7,582.4 6,036,835.82 462,245.50 3.00 9,492.03 End Dir: 12002.6' MD, 6286.8' TVD 12,100.0 86.01 319.98 6,293.6 6,237.4 5,846.6 -7,644.8 6,036,910.48 462,183.32 0.00 9,588.33 12,200.0 86.01 319.98 6,300.6 6,244.4 5,922.9 -7,709.0 6,036,987.13 462,119.49 0.00 9,687.21 12,300.0 86.01 319.98 6,307.5 6,251.3 5,999.3 -7,773.1 6,037,063.78 462,055.66 0.00 9,786.09 12,400.0 86.01 319.98 6,314.5 6,258.3 6,075.7 -7,837.3 6,037,140.43 461,991.83 0.00 9,884.96 12,500.0 86.01 319.98 6,321.4 6,265.2 6,152.1 -7,901.4 6,037,217.07 461,928.00 0.00 9,983.84 12,600.0 86.01 319.98 6,328.4 6,272.2 6,228.5 -7,965.6 6,037,293.72 461,864.16 0.00 10,082.71 1/4/2013 9.21.58AM Page 7 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +NI-S +E/-W Northing Easting DLS Vert Section (usft) (°) (°) (usft) usft (usft) (usft) (usft) (usft) 6,279.14 12,700.0 86.01 319.98 6,335.3 6,279.1 6,304.9 -8,029.7 6,037.370.37 461,800.33 0.00 10,181.59 12,717.7 86.01 319.98 6,336.6 6,280.4 6318.5 -8.041.1 6,037,383.94 461,789.03 0.00 10,199.09 Start Dir 31I100': 12717.7' MD, 6336.6'TVD 12,800.0 88.48 319.96 6,340.5 6,284.3 6,381.4 -8.093.9 6.037.447.09 461,736.43 3.00 10,280.57 12,850.7 90.00 319.95 6,341.2 6,285.0 6,420.2 -8,126.5 6,037,486.00 461,704.00 3.00 10,330.78 12,900.0 91.48 319.95 6.340.6 6.284.4 6.457.9 -8.158.3 6.037.523.89 461.672.42 3.00 10,379.68 13.009.0 94,75 319.95 6,334.6 6,278.4 6.541.3 -8,228.3 6,037.607.47 461.602.74 3.00 10.487.54 End Dir: 13009' MD, 6334.6' TVD 13,100.0 94.75 319.95 6,327.1 6,270.9 6,610.7 -8.286.6 6,037,677.13 461,544.68 0.00 10,577A4 13,200.0 94.75 319.95 6,318.8 6,262.6 6,687.0 -8,350.8 6.037,753.67 461.480.88 0.00 10.676.22 13,300.0 94.75 319.95 6,310.5 6,254.3 6,763.3 -8,414.9 6,037,830.21 461,417.08 0.00 10,775.00 13,400.0 94.75 319.95 6,302.3 6.246.1 6,839.5 -8,479.0 6,037,906.75 461,353.28 0.00 10,873.78 13,473.2 94.75 319.95 6,296.2 6,240.0 6,895.4 -8,525.9 6,037,962.78 461,306.57 0.00 10,946.09 Start Dir 1°/100': 13473.2' MD, 6296.2'TVD 13,500.0 94.50 319.87 6,294.0 6,237.8 6,915.8 -8.543.1 6,037,983.29 461,289,45 1.00 10,972.57 13,600.0 93.55 319.54 6,287.0 6,230.8 6,991.9 -8,607.7 6,038,059.62 461,225.26 1.00 11,071.50 13,700.0 92.60 319.22 6,281.7 6,225.5 7,067.7 -8,672.7 6,038,135.68 461,160.57 1.00 11,170.61 13,800.0 91.66 318.90 6,277.9 6.221.7 7,143.2 -8,738.1 6,038,211.43 461,095.41 1.00 11,269.85 13,882.0 90.88 318.64 6,276.1 6,219.9 7,204.9 -8.792.2 6,038,273.32 461,041.61 1.00 11,351.35 13,882.5 90.88 318.64 6,276.1 6,219.9 7,205.2 -8,792.5 6,038,273.67 461,041.30 0.00 11,351.82 End Dir: 13882.5' MD, 6276.1' TVD 13,900.0 90.88 318.64 6,275.9 6,219.7 7,218.4 -8,804.1 6,038,286.85 461,029.80 0.00 11,369.21 14,000.0 90.88 318.64 6,274.3 6,218.1 7,293.4 -8,870.1 6,038,362.16 460,964.03 0.00 11,468.60 14,100.0 90.88 318.64 6,272.8 6,216.6 7,368.5 -8,936.2 6,038,437.46 460,898.27 0.00 11,567.99 14,200.0 90.88 318.64 6,271.3 6,215.1 7,443.5 -9,002.3 6,038,512.77 460,832.51 0.00 11,667.37 14,300.0 90.88 318.64 6,269.7 6,213.5 7,518.5 -9,068.3 6,038,588.08 460,766.75 0.00 11,766.76 14,400.0 90.88 318.64 6,268.2 6,212.0 7,593.6 -9,134.4 6,038,663.38 460,700.99 0.00 11,866.15 14,471.3 90.88 318.64 6,267.1 6,210.9 7,647.1 -9,181.5 6,038,717.09 460,654.10 0.00 11,937.02 14,472.4 90.87 318.63 6,267.1 6,210.9 7,647.9 -9,182.3 6,038,717.91 460,653.38 1.00 11,938.11 Start Dir 11/100': 14472.4' MD, 6267.1'TVD 14,500.0 90.75 318.38 6,266.7 6,210.5 7,668.6 -9,200.5 6,038,738.65 460,635.18 1.00 11,965.55 14,542.6 90.56 318.00 6,266.2 6,210.0 7,700.3 -9,228.9 6,038,770.51 460,606.92 1.00 12,007.92 Start Dir 1.52°/100': 14542.6' MD, 6266.2'TVD 14,542.7 90.56 318.00 6,266.2 6,210.0 7,700.4 -9,229.0 6,038,770.56 460,606.87 1.00 12,007.99 14,574.5 90.54 317.52 6,265.9 6,209.7 7,724.0 -9,250.4 6,038,794.21 460,585.57 1.52 12,039.68 End Dir: 14574.5' MD, 6265.9' TVD 14,576.5 90.54 317.49 6,265.9 6,209.7 7,725.4 -9,251.7 6,038,795.70 460,584.22 1.52 12,041.68 14,600.0 90.54 317.49 6,265.7 6,209.5 7,742.8 -9,267.6 6,038,813.08 460,568.42 0.00 12,065.08 14,700.0 90.54 317.49 6,264.7 6,208.5 7,816.5 -9,335.2 6,038,887.05 460,501.15 0.00 12,164.67 14,800.0 90.54 317.49 6,263.8 6,207.6 7,890.2 -9,402.8 6,038,961.03 460,433.88 0.00 12,264.27 14,900.0 90.54 317.49 6,262.8 6,206.6 7,963.9 -9,470.3 6,039,035.00 460,366.62 0.00 12,363.86 14,950.7 90.54 317.49 6,262.4 6,206.2 8,001.3 -9,504.6 6,039,072.50 460,332.52 0.00 12,414.35 14,953.5 90.53 317.52 6,262.3 6,206.1 8,003.3 -9,506.5 6,039,074.58 460,330.63 1.05 12,417.14 Start Dir 1.050/100': 14953.5' MD, 6262.3'TVD 15,000.0 90.43 317.99 6,261.9 6,205.7 8,037.7 -9,537.7 6,039,109.12 460,299.51 1.05 12,463.44 11412013 9:21:58AM Page 8 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (usft) (1) (1) (usft) usft (usft) (usft) (usft) (usft) 6,205.17 15,100.0 90.21 319.02 6,261.4 6,205.2 8,112.6 -9.604.0 6.039,184.29 460,233.57 1.05 12,562.86 15,195.3 90.00 320.00 6,261.2 6,205.0 8,185.1 -9,665.9 6,039,257.01 460,172.00 1.05 12.657.41 Start Dir 10/100': 15195.3' MD, 6261.2'TVD 15,200.0 90.00 320.05 6,261.2 6.205.0 8,188.7 -9.668.9 6,039,260.62 460,168.99 1.00 12.662.07 15.283.8 89.98 320.88 6,261.2 6,205.0 8,253.3 -9,722.2 6,039,325.44 460,115.93 1.00 12,745.01 15.283.9 89.98 320.88 6.261.2 6.205.0 8.253.4 -9,722.3 6,039,325.54 460,115.85 0.00 12,745.13 End Dir: 15283.9' MD, 6261.2' TVD 15,300.0 89.98 320.88 6,261.2 6.205.0 8,265.9 -9,732.5 6,039,338.07 460,105.75 0.00 12,761.06 15,400.0 89.98 320.88 6,261.3 6.205.1 8,343.5 -9,795.5 6,039,415.90 460,042.98 0.00 12,859.95 15.500.0 89.98 320.88 6,261.3 6,205.1 8,421.1 -9,858.6 6,039,493.74 459.980.22 0.00 12,958.84 15,600.0 89.98 320.88 6,261.3 6.205.1 8,498.7 -9,921.7 6,039,571.58 459,917.45 0.00 13,057.74 15,700.0 89.98 320.88 6,261.3 6,205.1 8,576.3 -9,984.8 6,039,649.41 459.854.68 0.00 13,156.63 15,800.0 89.98 320.88 6.261.4 6,205.2 8,653.9 -10,047.9 6,039,727.25 459,791.92 0.00 13,255.53 15,854.1 89.98 320.88 6.261.4 6,205.2 8,695.8 -10,082.0 6,039,769.36 459,757.96 0.00 13,309.03 Start Dir 10/100': 15854.1' MD, 6261.4'TVD 15,900.0 89.54 321.01 6.261.6 6,205.4 8,731.5 -10,110.9 6,039,805.11 459,729.19 1.00 13,354.41 16,000.0 88.58 321.29 6,263.2 6,207.0 8,809.3 -10,173.7 6,039,883.23 459,666.79 1.00 13.453.22 16,091.6 87.70 321.54 6,266.2 6,210.0 8,880.9 -10,230.8 6,039.955.00 459,610.00 1.00 13,543.62 16,107.1 87.55 321.56 6,266.8 6,210.6 8,893.0 -10,240.4 6,039,967.18 459,600.41 1.00 13,558.92 End Dir: 16107.1' MD, 6266.8' TVD 16,200.0 87.55 321.56 6,270.8 6,214.6 8,965.7 -10,298.1 6,040,040.10 459,543.01 0.00 13,650.54 16,300.0 87.55 321.56 6,275.1 6,218.9 9,044.0 -10,360.2 6,040,118.60 459,481.22 0.00 13,749.16 16,400.0 87.55 321.56 6.279.4 6,223.2 9,122.2 -10,422.3 6,040,197.10 459,419.43 0.00 13,847.79 16,500.0 87.55 321.56 6,283.7 6,227.5 9,200.5 -10,484.4 6,040,275.59 459,357.64 0.00 13,946.41 16,600.0 87.55 321.56 6,288.0 6,231.8 9,278.7 -10,546.6 6,040,354.09 459,295.85 0.00 14,045.03 16,700.0 87.55 321.56 6,292.2 6,236.0 9,357.0 -10,608.7 6,040,432.59 459,234.06 0.00 14,143.65 16,800.0 87.55 321.56 6,296.5 6,240.3 9,435.3 -10,670.8 6,040,511.09 459,172.27 0.00 14,242.28 16,900.0 87.55 321.56 6,300.8 6,244.6 9,513.5 -10,732.9 6,040,589.58 459,110.48 0.00 14,340.90 16,964.2 87.55 321.56 6,303.5 6,247.3 9,563.7 -10,772.8 6,040,639.98 459,070.81 0.00 14,404.22 Start Dir 2°/100': 16964.2' MD, 6303.5'TVD 17,000.0 88.25 321.47 6,304.9 6,248.7 9,591.7 -10,795.0 6,040,668.07 459,048.67 2.00 14,439.54 17,088.0 90.00 321.24 6,306.2 6,250.0 9,660.5 -10,850.0 6,040,737.00 458,994.00 2.00 14,526.44 Start Dir 301100': 17088' MD, 6306.2'TVD 17,100.0 90.36 321.24 6,306.2 6,250.0 9,669.8 -10,857.5 6,040,746.39 458,986.53 3.00 14,538.30 17,200.0 93.36 321.24 6,302.9 6,246.7 9,747.7 -10,920.1 6,040,824.56 458,924.28 3.00 14,637.03 17,254.9 95.01 321.24 6,298.9 6,242.7 9,790.4 -10,954.4 6,040,867.38 458,890.18 3.00 14,691.13 End Dir: 17254.9' MD, 6298.9' TVD 17,300.0 95.01 321.24 6,295.0 6,238.8 9,825.5 -10,982.5 6,040,902.53 458,862.19 0.00 14,735.52 17,400.0 95.01 321.24 6,286.3 6,230.1 9,903.1 -11,044.9 6,040,980.45 458,800.14 0.00 14,833.94 17,500.0 95.01 321.24 6,277.5 6,221.3 9,980.8 -11,107.2 6,041,058.37 458,738.09 0.00 14,932.37 17,600.0 95.01 321.24 6,268.8 6,212.6 10,058.5 -11,169.6 6,041,136.29 458,676.04 0.00 15,030.79 17,700.0 95.01 321.24 6,260.1 6,203.9 10,136.2 -11,232.0 6,041,214.21 458,613.99 0.00 15,129.22 17,800.0 95.01 321.24 6,251.3 6,195.1 10,213.8 -11,294.3 6,041,292.13 458,551.94 0.00 15,227.64 17,900.0 95.01 321.24 6,242.6 6,186.4 10,291.5 -11,356.7 6,041,370.05 458,489.89 0.00 15,326.07 18,000.0 95.01 321.24 6,233.9 6,177.7 10,369.2 -11,419.1 6,041,447.97 458,427.84 0.00 15,424.49 11412013 9:21:58AM Page 9 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (usft) (1) (1) (usft) usft (usft) (usft) (usft) (usft) 6,168.97 18,100.0 95.01 321.24 6.225.2 6,169.0 10.446.9-11.481.5 6,041,525.89 458.365+79 0.00 15,522.92 18,202.7 95.01 321.24 6.216.2 6,160.0 10,526.6-11,545.5 6,041,605.92 458.302.06 0.00 15,624.00 Total Depth: 18202.8' MD, 6216.2' TVD 18,202.8 95.01 321.24 6.216.2 6,160+0 10.526.7-11,545.6 6,041,606.00 458,302.00 0.00 15,624.10 4 1 /2" 11412013 9:21:58AM Page 10 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLI B U RTO N Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Targets Target Name hit/miss target Dip Angle Dip Dir. TVD +N/-S +E/-W Northing Easting Shape (°) (°) (usft) (usft) (usft) (usft) (usft) K20 37ext V1 toe 0.00 0.00 6,406.2 8,970.9 -7,757.9 6,040,035.00 462,083.00 plan misses target center by 1948.5usft at 14507.4usft MD (6266.6 TVD, 7674.1 N,-9205.4 E) Point K20 34ext V2 toe 0.00 0.00 6,305.2 10,546.3 -11,525.4 6,041,625.49 458,322.23 plan misses target center by 93.2usft at 18197.7usft MD (6216.6 TVD, 10522.7 N,-11542.4 E) Point N20 V1 T4 (Invert #2) 0.00 0.00 6,290.2 9,660.5 -10,850.0 6,040,737.00 458,994.00 plan misses target center by 16.0usft at 17087.8usft MD (6306.2 TVD, 9660.3 N,-10849.8 E) Point N20 V1 T5 (TD) 0.00 0.00 6,216.2 10,526.4 -11,545.3 6,041,605.70 458,302.30 plan misses target center by 0.1 usft at 18202.4usft MD (6216.2 TVD, 10526.4 N,-11545.3 E) Point K20 32ext V1 heel 0.00 0.00 6,236.2 6,521.9 -3,528.5 6,037,569.00 466,302.00 plan misses target center by 3318.6usft at 9405.3usft MD (5347.8 TVD, 4237.4 N,-5765.7 E) Point I K20 34ext V3 heel 0.00 0.00 6,324.2 5,592.4 -7,963.5 6,036,657.66 461,863.67 plan misses target center by 408.5usft at 12112.4usft MD (6294.5 TVD, 5856.0 N,-7652.8 E) Point N20 v2 t3 0.00 359.70 6,266.2 7,713.9 -9,213.9 6.038,784.00 460,622.00 plan misses target center by 20.2usft at 14542.6usft MD (6266.2 TVD, 7700.4 N,-9228.9 E) Point N20 v2 t3.5 0.00 359.70 6,261.2 8,185.1 -9,665.9 6,039,257.00 460,172.00 plan hits target center Point K20 34ext V1 heel 0.00 0.00 6,386.2 8,104.7 -9,507.5 6,039,176.00 460,330.00 plan misses target center by 141.5usft at 15029.5usft MD (6261.7 TVD, 8059.7 N,-9557.4 E) Point K20 34ext V3 toe 0.00 0.00 6,320.2 10,250.4 -11,808.8 6,041,330.73 458,037.64 plan misses target center by 391.1 usft at 18143.3usft MD (6221.4 TVD, 10480.5 N,-11508.4 E) Point K20 34ext V1 toe 0.00 0.00 6,306.2 5,464.3 -7,326.6 6,036,527.00 462,500.00 plan misses target center by 55.0usft at 11606.6usft MD (6251.6 TVD, 5470.5 N,-7328.3 E) Point N20 v2 t4 0.00 359.69 6,266.2 8,880.9 -10,230.8 6,039,955.00 459,610.00 plan hits target center Point K20 36ext V1 toe 0.00 0.00 6,386.2 6,211.8 -11,180.0 6,037,290.00 458,650.00 plan misses target center by 2447.3usft at 14762.7usft MD (6264.1 TVD, 7862.7 N,-9377.5 E) Point K20 31ext V1 toe 0.00 0.00 6,296.2 12,574.1 -5,344.2 6,043,628.00 464,511.00 plan misses target center by 6122.8usft at 15881.1 usft MD (6261.5 TVD, 8716.8 N,-10099.0 E) Point N20 v2 t5 0.00 359.68 6,306.2 9,660.5 -107850.0 6,040.737.00 458,994.00 plan hits target center Point N20 v2 t1 0.00 359.71 6,341.2 5,746.4 -7,560.7 6,036,810.00 462.267,00 plan misses target center by 56.8usft at 11973.4usft MD (6284.6 TVD, 5749.8 N,-7563.6 E) Point K20 34ext V2 heel 0.00 0.00 6,331.2 5,889.5 -7,679.0 6,036,953.53 462,149,32 Ian misses target center by 33.7usft at 12157.3usft MD (6297.6 TVD 5890.3 N-7681.6 E) 11412013 9:21:58AM Page 11 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 - Point N20 v2 16 0.00 359.68 6,216.2 10,526.7 -11.545.6 6,041,606.00 458,302.00 plan hits target center Point N20 V1 T3 (Revert #1) 0.00 0.00 6,266.2 7.713.9 -9,213.9 6,038,784.00 460,622.00 plan misses target center by 20.2usft at 14542.6usft MD (6266.2 TVD, 7700.4 N.-9228.9 E) Point I K20 37ext V1 heel 0.00 0.00 6.266.2 5,766.5 -5.327.6 6,036.821.00 464,500.00 plan misses target center by 1596.0usft at 10314.2usft MD (5768.1 TVD, 4711.9 N. -6417.1 E) Point K20 36ext V1 heel 0.00 0.00 6.306.2 3,533.1 -8,323.8 6,034,600.00 461,495.00 plan misses target center by 2092.9usft at 11144.5usft MD (6140.5 TVD, 5155.1 N,-7011.6 E) Point N20 v2 t2 0.00 359.70 6.341.2 6,420.2 -8.126.5 6,037.486.00 461,704.00 plan hits target center Point K20 32ext V1 toe 0.00 0.00 6,296.2 10,052.9 -6,081.1 6,041,110.00 463,764.00 plan misses target center by 3916.9usft at 14227.8usft MD (6270.8 TVD, 7464.3 N,-9020.6 E) Point N20 V1 T1 (ICP2) 0.00 0.00 6,284.2 5,746.4 -7,560.7 6,036,810.00 462.267.00 plan hits target center Point N20 V1 T2 (Invert #1) 0.00 0.00 6,341.2 6,420.2 -8,126.5 6,037,486.00 461,704.00 plan hits target center Point Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (usft) (usft) Name (") (") 4,801.6 3,219.0 113/4" 11-3/4 14-1/2 9,597.5 5,436.7 9 5/8" 9-5/8 11-3/4 11,968.0 6,284.1 7" 7 8-1/2 18,202.8 6,216.2 41/2" 4-1/2 6-1/8 11412013 9:21:58AM Page 12 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction (usft) (usft) Name Lithology 11,253.8 6,176.6 Top Kuparuk C 9,160.4 5,234.6 Base Torok Sand 11,721.2 6,262.6 BCU (Top Kingak Sh) 4,123.0 2,905.2 Cret tuffs 11,334.4 6,199.4 LCU (Top Miluveach Sh) 10,848.5 6,015.2 Base HRZ (Top Kalubik Sh) 4,781.4 3,209.6 Hue 2 shale 1,844.2 1,713.0 Ugnu D 11,893.3 6,277.6 Top Nuiqsut 8,673.0 5,009.2 Top Torok Sand 861.1 853.0 Top of Permafrost 2,764.7 2,277.1 Top West Sak 9,586.7 5,431.7 Torok 1 Shale 11,924.3 6,280.3 Nuiqsut 1 1,785.7 1,668.0 Base of Permafrost 7,119.4 4,290.8 Brookian 2B 11,054.5 6,106.4 Kalubik Marker 10,561.5 5,882.5 Top HRZ Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (usft) (usft) (usft) (usft) Comment 225.0 225.0 0.0 0.0 Start Dir 2.50/100': 225' MD, 225'TVD: 310° RT TF 2,725.7 2,259.0 750.3 -978.5 End Dir: 2725.7' MD, 2259' TVD 10,921.9 6,049.1 5,029.1 -6,852.6 Start Dir 3.50/100': 10921.9' MD, 6049.2'TVD 11,668.9 6,258.0 5,517.5 -7,368.6 End Dir: 11668.9' MD, 6258' TVD 11,968.9 6,284.2 5,746.4 -7,560.7 Start Dir 31/100': 11968.9' MD, 6284.2'TVD 12,002.6 6,286.8 5,772.1 -7,582.4 End Dir: 12002.6' MD, 6286.8' TVD 12,717.7 6,336.6 6,318.5 -8,041.1 Start Dir 31/100': 12717.7' MD, 6336.6'TVD 13,009.0 6,334.6 6,541.3 -8,228.3 End Dir: 13009' MD, 6334.6' TVD 13,473.2 6,296.2 6,895.4 -8,525.9 Start Dir 1*/100': 13473.2' MD, 6296.2'TVD 13,882.5 6,276.1 7,205.2 -8,792.5 End Dir: 13882.5' MD, 6276.1' TVD 14,472.4 6,267.1 7,647.9 -9,182.3 Start Dir 1°/100': 14472.4' MD, 6267.1'TVD 14,542.6 6,266.2 7,700.3 -9,228.9 Start Dir 1.520/100': 14542.6' MD, 6266.2'TVD 14,574.5 6,265.9 7,724.0 -9,250.4 End Dir: 14574.5' MD, 6265.9' TVD 14,953.5 6,262.3 8,003.3 -9,506.5 Start Dir 1.050/100': 14953.5' MD, 6262.3'TVD 15,195.3 6,261.2 8,185.1 -9,665.9 Start Dir 10/100': 15195.3' MD, 6261.2'TVD 15,283.9 6,261.2 8,253.4 -9,722.3 End Dir: 15283.9' MD, 6261.2' TVD 15,854.1 6,261.4 8,695.8 -10,082.0 Start Dir 11/100': 15854.1' MD, 6261.4'TVD 16,107.1 6,266.8 8,893.0 -10,240.4 End Dir: 16107.1' MD, 6266.8' TVD 16,964.2 6,303.5 9,563.7 -10,772.8 Start Dir 21/100': 16964.2' MD, 6303.5'TVD 17,088.0 6,306.2 9,660.5 -10,850.0 Start Dir 31/100': 17088' MD, 6306.2'TVD 17,254.9 6,298.9 9,790.4 -10,954.4 End Dir: 17254.9' MD, 6298.9' TVD 18,202.7 6,216.2 10,526.6 -11,545.5 Total Depth: 18202.8' MD, 6216.2' TVD 11412013 9:21:58AM Page 13 COMPASS 5000.1 Build 61 Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-20 ODSN-20 KE4 ODSN-20 KE4 wp08 Anticollision Summary Report 04 January, 2013 1�. \` A r•,�.. here. .�`� r Y • Fri � 'i vi�� rf2��'�i • � � � • CL it IL Lr m e• a :��� s�i 9 y/ Ifs • o�� CD acu o � ;� �I �' � `®�1����lid� _rye ► � �1 ��11�•+���� • » lid►.►�� o. m� 11�Y/I r .r.�, m wwwww Os.�"M +' b s+! i 6t�lis�!'yrir;� a, • • • r: \_ �Ci'•'r01 +iir�� .I .- -•i'�'.r Via:\ ONSIINS ►ION � \ • • • • rr�N/7/ll���►�l�Jy�il����'0���� - • • I'VE r1•�i�Q 1 rsr zC - 0. 0I. Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Reference Site: Oooguruk Drill Site Site Error: 0.0usft Reference Well: ODSN-20 Well Error: O.Ousft Reference Wellbore ODSN-20 KE4 Reference Design: ODSN-20 KE4 wp08 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset TVD Reference: Well ODSN-20 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 42.7' + 13.5' @ 56.2usft (Nabors 19AC) True Minimum Curvature 2.00 sigma EDMAKPRD Offset Datum Reference ODSN-20 KE4 wp08 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of referE Interpolation Method: MD Interval 25.Ousft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray. Cylinder North Results Limited by: Maximum center -center distance of 2,016.Ousft Error Surface: Elliptical Conic Survey Tool Program Date 1/4/2013 From To (usft) (usft) Survey (Wellbore) Tool Name Description 42.7 750.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) SRG-SS Surface readout gyro single shot 750.0 4,801.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:vZIIFR dec & 3-axis correction + sag 4,801.0 9,597.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 9,597.0 11,968.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 11,968.0 18,202.8 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 11412013 11:11.07AM Page 2 of 5 COMPASS 5000.1 Build 61 Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Local Co-ordinate Reference: Well ODSN-20 Project: Oooguruk Development TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site Error: 0.0usft North Reference: True Reference Well: ODSN-20 Survey Calculation Method: Minimum Curvature Well Error: 0.0usft Output errors are at 2.00 sigma Reference Wellbore ODSN-20 KE4 Database: EDMAKPRD Reference Design: ODSN-20 KE4 wp08 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) Oooguruk Drill Site ODSDW1-44 - ODSDW1-44 Disposal - ODSDW1 299.0 300.0 32.5 5.92 26.6 Pass - Major Risk ODSDW2-19 - ODSDW2-19 Disposal - ODSDW2 250.0 250.0 8.0 5.61 2.4 Pass - Major Risk ODSK-13 - ODSK-13 - ODSK-13 473.6 475.0 60.8 10.86 49.9 Pass - Major Risk ODSK-13 - ODSK-13PB1 - ODSK-13PB1 473.6 475.0 60.8 10.86 49.9 Pass - Major Risk ODSK-13 - ODSK-13PI32 - ODSK-13PB2 473.6 475.0 60.8 10.86 49.9 Pass - Major Risk ODSK-14 - ODSK-14 - ODSK-14 KupB 524.0 525.0 54A 12.31 42.1 Pass - Major Risk ODSK-14 - ODSK-14 PB1 - ODSK-14 P61 KupB 524.0 525.0 54.4 12.31 42.1 Pass - Major Risk ODSK-14 - ODSK-14 PB2 - ODSK-14 PB2 KupB 524.0 525.0 54.4 12.31 42.1 Pass - Major Risk ODSK-33 - ODSK-33 KupA - ODSK-33 KupA 346.5 350.0 104.7 7.86 96.8 Pass - Major Risk ODSK-33 - ODSK-33 P61 KupA - ODSK-33 PB1 1 346.5 350.0 104.7 7.86 96.8 Pass - Major Risk ODSK-35Ai - ODSK-35 KupB - ODSK-35 KupB SL 323.2 325.0 92.0 7.26 84.7 Pass - Major Risk ODSK-35Ai - ODSK-35Ai - ODSK-35Ai KupH Sury 323.2 325.0 92.0 7.26 84.7 Pass - Major Risk ODSK-38i - ODSK-38i KupD - ODSK-38i KupD SL 346.6 350.0 62.3 7.89 54.4 Pass - Major Risk ODSK-41 - ODSK-41 KupF - ODSK-41 KupF Sury 322.2 325.0 44.8 7.30 37.5 Pass - Major Risk ODSK-41 - ODSK-41 PB1 KupF - ODSK-41 P61 F 322.2 325.0 44.8 7.39 37.4 Pass - Major Risk ODSK-42i - ODSK-42Ai - ODSK-42Ai 323.5 325.0 40.7 7.48 33.3 Pass - Major Risk ODSK-42i - ODSK-42i KupG - ODSK-42i KupG 323.5 325.0 40.7 7.48 33.3 Pass - Major Risk ODSK-7i - ODSN-7i Ivik Kup - ODSN-7i Ivik KupA 374.2 375.0 114.0 8.38 105.6 Pass - Major Risk ODSN-1 - ODSN-1 KE3 - ODSN-1 KE3 991.2 1,000.0 167.4 22.39 145.1 Pass - Major Risk ODSN-1 - ODSN-1 KE3 PB1 - ODSN-1 KE3 P131 991.2 1,000.0 167.4 22.39 145.1 Pass - Major Risk ODSN-10 - ODSN-10 PS12 - ODSN-10 PS12 wp1 473.2 475.0 94.0 11.05 83.0 Pass - Major Risk ODSN-11i - ODSN-11i IS11 - ODSN-11i IS11 wp1 1,503.9 1,500.0 59.3 38.23 21.4 Pass - Major Risk ODSN-12 - ODSN-12 PS10 - ODSN-12 PS10 wp1 473.4 475.0 80.2 11.06 69.1 Pass - Major Risk ODSN-15i - ODSN-15i - ODSN-15i IN12 748.4 750.0 42.2 18.28 24.1 Pass - Major Risk ODSN-16 - ODSN-16 - ODSN-16 PN13 Surveys 795.8 800.0 42.0 19.14 23.5 Pass - Major Risk ODSN-16 - ODSN-16L1 - ODSN-16L1 PN13 795.8 800.0 42.0 19.14 23.5 Pass - Major Risk ODSN-17 - ODSN-17 - ODSN-17 PN13 Mid SurVE 349.8 350.0 34.9 8.01 26.9 Pass - Major Risk ODSN-17 - ODSN-17 L1 - ODSN-17 L1 PN13 349.8 350.0 34.9 8.01 26.9 Pass - Major Risk ODSN-18 - ODSN-18 - ODSN-18 PN11 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB5 - ODSN-18 PN11 PB5 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB1 - ODSN-18 PN11 P131 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 P132 - ODSN-18 PN11 P132 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB2 - ODSN-18_ PB2 523.9 525.0 26.8 11.01 15.9 Pass - Major Risk ODSN-18 - ODSN-18 P133 - ODSN-18 PN11 PB3 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 P134 - ODSN-18 PN11 P134 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-2 - ODSN-2 PN3 ext - ODSN-2 PN3 ext wp 324.1 325.0 160.1 7.33 152.7 Pass - Major Risk ODSN-21 - ODSN-21 PS13 - ODSN-21 PS13 wp0 225:0 225.0 7.6 5.04 2.6 Pass - Major Risk ODSN-22i - ODSN-22i IS14 - ODSN-22i IS14 wp0 349.9 350.0 14.5 8.00 6.5 Pass - Major Risk ODSN-23i - ODSN-23i - ODSN-23i IN14 150.0 150.0 21.7 3.28 18.5 Pass - Major Risk ODSN-23i - ODSN-23i P61 - ODSN-23i IN14 P131 150.0 150.0 21.7 3.28 18.5 Pass - Major Risk ODSN-23i - ODSN-23i P132 - ODSN-23i IN14 P62 150.0 150.0 21.7 3.28 18.5 Pass - Major Risk ODSN-24 - ODSN-24 KE5 - ODSN-24 KE5 175.0 175.0 28.5 3.81 24.7 Pass - Major Risk ODSN-24 - ODSN-24 KE5 - ODSN-24 KE5 wp11 250.0 250.0 28.9 5.58 23.3 Pass - Major Risk ODSN-24 - ODSN-24 P61 - ODSN-24 P131 175.0 175.0 28.5 3.81 24.7 Pass - Major Risk ODSN-25 - ODSN-25 - ODSN-25 KE1 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 PB1 - ODSN-25 P61 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 P62 - ODSN-25 KE1 P132 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 P133 - ODSN-25 KE1 P133 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 P134 - ODSN-25 KE1 PB4 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-26i - ODSN-26 KE2 PB2 - ODSN-26 KE2 P 298.4 300.0 163.6 6.80 156.8 Pass - Major Risk ODSN-26i - ODSN-26i KE2 - ODSN-26i KE2 298.4 300.0 163.6 6.80 156.8 Pass - Major Risk ODSN-26i - ODSN-26i KE2 P61 - ODSN-26i KE2 298.4 300.0 163.6 6.80 156.8 Pass - Major Risk ODSN-27i - ODSN-27i IN4 - ODSN-27i IN4 396.2 400.0 155.8 9.14 146.6 Pass - Major Risk 11412013 11:11:07AM Page 3 of 5 COMPASS 5000.1 Build 61 Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Local Co-ordinate Reference: Well ODSN-20 Project: Oooguruk Development TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site Error: 0.0usft North Reference: True Reference Well: ODSN-20 Survey Calculation Method: Minimum Curvature Well Error: 0.0usft Output errors are at 2.00 sigma Reference Wellbore ODSN-20 KE4 Database: EDMAKPRD Reference Design: ODSN-20 KE4 wp08 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) Oooguruk Drill Site ODSN-28 - ODSN-28 PN3 - ODSN-28 PN3 wp09 323.0 325.0 149.4 7.36 142.1 Pass - Major Risk ODSN-29 - ODSN-29 PN5 - ODSN-29 PN5 347.1 350.0 143.2 7.86 135.4 Pass - Major Risk ODSN-29 - ODSN-29 PN5 PB1 - ODSN-29 PN5 F 347.1 350.0 143.2 7.86 135.4 Pass - Major Risk ODSN-29 - ODSN-29 PN5 P132 - ODSN-29 PN5 F 347.1 350.0 143.2 7.86 135.4 Pass - Major Risk ODSN-30 - ODSN-30 PS5 - ODSN-30 PS5 wp02 420.9 425.0 137.3 9.48 127.8 Pass - Major Risk ODSN-31 - ODSN-31 - ODSN-31 PN6 Surveys 347.7 350.0 118.6 8.05 110.5 Pass - Major Risk ODSN-31 - ODSN-31 PB1 - ODSN-31 PB1 PN6 St 347.7 350.0 118.6 8.05 110.5 Pass - Major Risk ODSN-32i - ODSN-32i IN7 - ODSN-32i IN7 Surve, 372.1 375.0 112.2 8.61 103.6 Pass - Major Risk ODSN-32i - ODSN-32iPB1 IN7 - ODSN-32iPB1 IN 372.1 375.0 112.2 8.61 103.6 Pass - Major Risk ODSN-34i - ODSN-34 IN9 - ODSN-34i IN9 Survey 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-34i - ODSN-34i PB2 - ODSN-34iPB2 IN9 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-34i - ODSN-34i P133 - ODSN-34iPB3 IN9 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-34i - ODSN-34iP61 - ODSN-34iPB1 IN9 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-36 - ODSN-36 L1 - ODSN-36 L1 wp05 298.7 300.0 85.5 6.55 78.9 Pass - Major Risk ODSN-36 - ODSN-36 PB1 - ODSN-36 P131 PN10 298.7 300.0 85.5 6.64 78.9 Pass - Major Risk ODSN-36 - ODSN-36 PB2 - ODSN-36 PB2 PN10 298.7 300.0 85.5 6.64 78.9 Pass - Major Risk ODSN-36 - ODSN-36 PN10 - ODSN-36 PN10 Sur 298.7 300.0 85.5 6.64 78.9 Pass - Major Risk ODSN-37 - ODSN-37 - ODSN-37 PN8 347.9 350.0 68.8 8.08 60.7 Pass - Major Risk ODSN-37 - ODSN-37 L1 - ODSN-37 L1 wp01 347.9 350.0 68.8 7.99 60.8 Pass - Major Risk ODSN-3i - ODSN-3i IN4 ext - ODSN-3i IN4 wp07 324.5 325.0 153.7 7.45 146.3 Pass - Major Risk ODSN-4 - ODSN-4 PN5 ext - ODSN-4 PN5 ext wp 1,125.8 1,125.0 128.8 29.84 99.7 Pass - Major Risk ODSN-40 - ODSN-40 PN12 - ODSN-40 PN12 Sur 297.5 300.0 50.6 6.76 43.9 Pass - Major Risk ODSN-40 - ODSN-40PB1 PN12 - ODSN-40PB1 P 297.5 300.0 50.6 6.76 43.9 Pass - Major Risk ODSN-40 - ODSN-40PB2 PN12 - ODSN-40PB2 P 297.5 300.0 50.6 6.76 43.9 Pass - Major Risk ODSN-43 - ODSN-43 PS15 (current) - ODSN-43 F 274.3 275.0 34.1 6.19 27.9 Pass - Major Risk ODSN-48 - ODSN-48i IS16 - ODSN-48i IS16 wp0, 249.7 250.0 43.6 5.61 38.0 Pass - Major Risk ODSN-5i - ODSN-5i IS3 - ODSN-5i IS3 wp09 374.1 375.0 139.5 8.64 130.9 Pass - Major Risk ODSN-6 - ODSN-6 PS4 - ODSN-6 PS4 wp01 497.1 500.0 132.8 11.15 121.7 Pass - Major Risk ODSN-8 - ODSN-8 PS8 - ODSN-8 PS8 wp08 - 8K 473.1 475.0 107.9 10.97 96.9 Pass - Major Risk ODSN-9i - ODSN-9i IS9 - ODSN-91 wp12-8k horz 646.8 650.0 103.8 15.43 88.4 Pass - Major Risk ODST-39 - ODSN-39i IN11 - ODSN-39i IN11 298.8 300.0 56.6 6.80 49.8 Pass - Major Risk ODST-39 - ODST-39 Torok D - ODST-39 Torok D 298.8 300.0 56.6 6.80 49.8 Pass - Major Risk ODST-39 - ODST-39 Torok D PB1 - ODST-39 Tor 298.8 300.0 56.6 6.80 49.8 Pass - Major Risk ODST-45 - ODSN-45i P131 IN13 - ODSN-45i P131 249.6 250.0 34.8 5.81 29.0 Pass - Major Risk ODST-45 - ODST-45A - ODST-45A Surveys 249.6 250.0 34.8 5.81 29.0 Pass - Major Risk ODST-46i - ODST-46i - ODST-46i Torok C 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODST-46i - ODST-46i PB1 - ODST-46i Torok C P 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODST-46i - ODST-46i PB2 - ODST-46i Torok C P 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODST-46i - ODST-46i Torok C PB3 - ODST-46i P 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODST-47 - ODST-47 - ODST-47 274.3 275.0 38.9 6.13 32.7 Pass - Major Risk 11412013 11:11.07AM Page 4 of 5 COMPASS 5000.1 Build 61 Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Local Co-ordinate Reference: Well ODSN-20 Project: Oooguruk Development TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site Error: O.Ousft North Reference: True Reference Well: ODSN-20 Survey Calculation Method: Minimum Curvature Well Error: O Ousft Output errors are at 2.00 sigma Reference Wellbore ODSN-20 KE4 Database: EDMAKPRD Reference Design: ODSN-20 KE4 wp08 Offset TVD Reference: Offset Datum reference Depths are relative to 42.7' + 13.5' @ 56.2usft (Nabors Coordinates are relative to: ODSN-20 )Ket Depths are relative to Offset Datum Coordinate System is US State Plane 1927 (Exact solution), Alaska Zone 04 ventral Meridian is 150' 0' 0.000 W ' Grid Convergence at Surface is: -0.23' 9 VO :-13PB1 VO -13PB2 VO KupBV00 <-14 P61 Ku@ VO <-14 PB2 KupB VO X-33 KUnA VO > ,ODSK-35KupBSurveysVO K-35AiKupHSurveysV0 D ODSK-38iKupDSurveysVO DSK�31 KupFSurveysVO ,LpF,ODSK41 PB1 KupFVO K-42Ai VO 3 ODSK-42i KupG VO DSN-7iMikKupwp01 VO N-1 KE3 VO 1 ODSIN-1 KE3PB1 VO li Ladder Plot 'y t 1 F v 51r111`. 1 3600 -iE- ODSN-2&@RSN-23i, ODS,N-M84 V0 12000�-0FT5g&§N-37, ODSN-3faBb1 ODSN-23i3ODSrgdSgg�UEPuskin) ODSN-37,ODSN-37L1,01 ODSN-23i3ODSN-23iPB2O2i 114PB2VO ODSN-3i, ODSN-3i IN4 end, -3*- ODSN-24,ODSN-24KE5,ODSN24KE5wp11VO ODSN-40,ODSN-40PN12,ODSI ODSN-24,ODSN-24P131,ODSN-24PB1 VO $ ODSN-40,ODSN-40PB1 PN12,0 $ ODSN-25,ODSN-25,ODSN-25KE1 VO ODSN-40,ODSN-40PB2PN12,O ODSN-25,ODSN-25P131,ODSN-25PB1 VO ODSN-43, ODSN-43 PS1 5 (currei -I-- ODSN-25,ODSN-25PB2,ODSN-25KE1P132VO 4'> ODSN-48,ODSN-48iIS16,ODSl` ODSN-25,ODSN-25 PB3, ODSN•25 KE1 PB3 VO ODSN-5i, ODSN-5i IS3, ODSN-5i $ ODSN-25,ODSN-25 PB4, ODSN-25 KE1 P134 VO $ ODSN-6, ODSN 6 PS4, ODSN-6 I $ ODSN•26i3ODSN-26KE2P62,ODSN-26KE2PB2VO ODSN-8, ODSN-8 PS8, ODSN-8 -'+ ODSN-26i, ODSN-26i KE2, ODSN-26i KE2 VO -E3- ODSN-9i, ODSN-9i IS9, ODSN-91 11412013 11. 11.07AM Page 5 of 5 COMPASS 5000.1 Build 61 Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-20 ' ODSN-20 KE4 / Plan: ODSN-20 KE4 wp0R Standard Proposal Report 04 January, 2013 13 I HALLIBURT®N Sperry Drilling Services � 1 CO) n yy000 y0 O NNZGto ��N22 mm o0 .k m �. 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W n� 4 +Jp 9 w�0 n—Z --o ZZ� o N Coln PIONEER NATURAL RESOURCES HALLIBURTON Sperry Drilling OMPANY DETAILS: Well Planing - Pioneer - Oooguruk Calculation Method: Minimum Curvature Error System ISCWSA Scan Method: Tray. Cylinder North Error Surface: Elliptical Conic Warning Method: Rules Eased Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Plan: ODSN-20 KE4 wp08 SURVEY PROGRAM Date: 2013-01-02T00:00:00 Validated: Yes Version: Depth From Depth To Survey/Plan Tool 42.7 750.0 ODSN-20 KE4 wpO8SRG-SS 750.0 4801.0 ODSN-20 KE4 wpOBMWD+IFR2+MS+sag 4801.0 9597.0 ODSN-20KE4 wpOBMWD+IFR2+MS+sag 9597.0 11968.0 ODSN-20KE4 wpO8MWD+IFR2+MS+sag 11968.0 18202.8 ODSN-20 KE4 wpO8MWD+IFR2+MS+sag CASING DETAILS REFERENCE INFORMATION 3219.0 4801.6 11 3/4" 11-3/4 Coordinate WE) Reference: Well ODSN-20, True North 5436.7 9597.6 9 5/8" 9-5/8 VG1•8cal (TVD) Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 6284.111968.0 7" 7 Memsed Depth Reference: 427+ 13.5' @ 56.2usft (Nabors 19AC) 621E-218202.8 41f2" 4 -1/2 Calculadoa Method: Minimrm Curvature SECTION DETAILS Sec MD Inc Azi TVD +N/-S +E/-W Dleg TFace VSect Target 1 42.7 0.00 0.00 42.7 0.0 0.0 0.00 0.00 0.0 2 225.0 0.00 310.00 225.0 0.0 0.0 0.00 310.00 0.0 3 1025.0 20.00 310.00 1008.9 88.8 -105.9 2.50 310.00 138.1 4 2725.7 62.46 306.07 2259.0 750.3 -978.5 2.50 -5.1A 1228.6 5 10921.9 62.46 306.07 6049.1 5029.1-6852.6 0.00 400 8452.2 6 11668.9 85.00 319.98 6258.0 5517.5-7368.6 3.50 32.92 9162.6 7 11968.9 85.00 319.98 6284.2 5746.4-7560.7 0.00 0.00 9458.7 N20 V1 T1 (ICP2) 8 12002.6 86.01 319.98 6286.8 5772.1-7582.4 3.00 0.12 9492.0 9 12717.7 86.01 319.98 6336.6 6318.5-8041.1 0.00 0.00 10199.1 10 12850.7 90.00 319.95 6341.2 6420.2-8126.5 3.00 -0.38 10330.8 N20 v2 t2 11 13009.0 94.75 319.95 6334.6 6541.2 -822E-3 3.00 0.00 10487.5 12 13473.2 94.75 319.95 6296.2 6895.4 -8U5.9 0.00 0.00 10946.1 13 13882.0 90.88 318.64 6276.1 7204.9 87922 1.00-161.22 11351.4 14 14471.3 90.88 318.64 6267.1 7647.1-9181.5 0.00 0.00 11937.0 15 14542.7 90.56 318.00 6266.2 7700.4-9229.0 1.00-116.50 12008.0 N20 v2 t3 16 14576.5 90.54 317.49 6265.9 7725.4 -9251.7 1.52 -92.28 12041.7 17 14950.7 90.54 317.49 6262.4 8001.3-9504.6 0.00 0.00 12414.3 18 16195.3 90.00 320.00 6261.A 8185.1-9665.9 1.05 102.11 12657.4 N20 v2 t3.5 19 15283.8 89.98 320.88 6281.2 8253.3-9722.2 1.00 91.18 12745.0 20 15854.1 89.98 320.88 6281.4 8695.8-10082.0 0.00 0.00 13309.0 21 16091.6 87.70 321.54 6286.2 8880.9-10230.8 1,00 163.99 13543.6 N20 V2 t4 22 16107.1 87.55 321.35 8266.8 8893.0-10240.4 1.00 172.86 13558.9 23 16964.2 87.55 321.56 6303.5 9563.8-10772.8 0.00 0.00 14404.2 24 17088.0 90.00 Z21.24 6306.2 9660.5-10850.0 2.00 -7.47 14526.4 N20 V2 t5 25 17254.9 95.01 321.24 6298.9 9790.4-10954.3 3.00 -0.01 14691.1 26 18202.8 95.01 321.24 6216.2 10526.7-11545.6 0.00 0.00 15624.1 M20 V2t6 4 1/2" ANNOTATIONS 11000 ODSN-20 KE4 wp08 TVD MD Inc Aid +N/S +E/-W VSect Departure Annotation 225.0 225.0 0.00 310.00 0.0 0.0 0.0 0.0 Start Dir 2.5°/l00': 225' MD, 2257VD: 310* R' 2259.0 2725.7 62.46 306.07 750.3 -978.5 1228.6 1233.4 End Dir. 2725.T MD, 2259' TVD i 6049.1 10921.9 62.46 306.07 5029.1-6852.6 8452.2 8500.E Start Dir 3.5°/100': 10921.9' MD, 6049.27VD 6258.0 11668.9 85.00 319.98 5517.5-7368.6 9162.5 9212.8 End Dir. 11668.9' MD, 6258' TVD 10000 ' 8284.2 11968.9 85.00 319.90 5746.4-7560.7 9458.7 9511.7 Start Dir 7/100': 11988.9' MD, 6284.27VD r 8288.8 12002.8 88.01 319.98 5772.1-7582.4 9492.0 9545.3 End Dir. 12002.8' MD, 6286Z TVD r 8338.6 12717.7, 86.01 319.98 6318.5-8041.1 10199.1 10258.6 Start Dir 7/100': 127177 MD, 6336.6'TVD N20 v2 t6 i' 8334.8 13009.0 94.75 319.95 6541.3 4108.3 10487.5 10549.7 End Dir. 13009' MD, 6334.6 TVD 82882 13473.2 94.75 319.95 6895.4 -M.0 10946.1 11012.3 Start Dir 1°/100% 13473.2' MD, 6296.27VD 8276.1 13882.5 90.88 318.64 7205.2-8702.5 11351.8 11421.0 End Dir 13882.5' MD, 6276.1' TVD 9000 8287.1 11472.4 90.87 318.83 7847.9-9182.3 11938.1 12010.8 Start Dir 1°/100': 14472.4' MD, 6267.17VD r 8288.2 14542.E WAS 318.00 7700.3 -9M.9 12007.9 12081.0 Start Dir 1.52°/100': 14542.6' MD, 6266.27VD N20 v2 t5 8285.9 14574.5 90.54 317.52 7724.0-9250.4 12039.7 12112.9 End Dir. 14574.5' MD, 6285.9' TVD r 8282.3 14953.5 90.53 317.62 8003.3 -0506.5 12417.1 12491.9 Start Dir 1.05°/1001: 14953.5' MD, 6262.37M 82812 15195.3 90.00 320.00 8185.1-9665.9 12657.4 12733.7 Start Dir 171001: 15195.3' MD, 6261.27VD 621".4 15854A $99.98 320.88 865.8 -10082.0 13309.0 13392.5 Slat Dlir 1° 100'915854.18MD, 626 8000 N20 v2 t4 6246.8 16107.1 87.55 321.56 .47VD 8893.0-10240.4 13558.9 13645.4 End Dir, 16107.1' MD, 6266.8' TVD 6303.5 18984.2 87.55 321.56 9563.7-10772.8 14404.2 14501.7 Start Dir 16964.2' MD, 6303.57VD 63062 17088.0 90.00 321.24 -1/1DIY: 9660.5-10a50.0 14526.4 14625.5 Start Dir 7/100': 17088' MD, 6308.27VD 6298.0 17254.9 95.01 321.24 9790.4-10954.4 14691.1 14792.2 End Dir. 17254.9'MD, 6298.9'TVD N20 v2 t3.5 8216.2 18202.6 95.01 321.24 10526.6-11545.5 15623.9 15736.3 Total Depth: 18202.8' MD, 6216.2 TVD 7000 c ' N20 v2 t3 To Annotations view on wellbore 6000 7" refer to Section View. 0 N20 v2 t2 CV - + N20 v2 t1 5000 p N20 V1 T1 (ICP2) 9 5/8" Z 4000 O W 3000 WELL DETAILS: ODSN-20 11 3/4" 2000 Cuound Level: 13.5 +N/-S 4F/-W Nordt S Easting Latitude Longitude Slot 0,0 0.0 6031033.50 469803.59 700 29' 45.078 N 150° 14' 48.891 W WELLBORE TARGET DETAILS (MAP CO-ORDINATES) Name TVD +N/-S +E/-W Northing Easting Shape N20 v2t6 6216.2 10526.7 -11545.6 6041606.00 458302.00 Point N20 v2 t3.5 6261.2 8185.1 -9665.9 6039257.00 460172.00 Point p N20 v2 t3 6266.2 7713.9 -9213.9 6038784.00 460622.00 Point N20 v2 t4 6266.2 8880.9 -10230.8 6039955.00 459610.00 Point N20 V1 T1 (ICP2) 6284.2 5746.4 -7560.7 6036810.00 462267.00 Point N20 v2 t5 6306.2 9660.5 -10850.0 6040737.00 458994.00 Point N20 v2 t1 6341.2 5746.4 -7560.7 6036810.00 462267.00 Point -1000 N20 v2 t2 6341.2 6420.2 8126.5 6037486.00 461704.00 Point -12000 -11000 -10000 -9000 -8000 -7000 -6000 -5000 -4600 -3000 -2000 -1000 0 West( -)/East(+) (2000 usft/in) DD1= 6.74 HALLIBURTON Database: EDMAKPRD Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Pioneer Natural Resources Standard Proposal Report Local Co-ordinate Reference: Well ODSN-20 TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) North Reference: True Survey Calculation Method: Minimum Curvature 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 Tsing geodetic scale factor Site Oooguruk Drill Site Site Position: Northing: From: Map Easting: Position Uncertainty: 0.0 usft Slot Radius: Well ODSN-20 Well Position +N/-S 0.0 usft Northing: +E/-W 0.0 usft Easting: Position Uncertainty 0.0 usft Wellhead Elevation Wellbore ODSN-20 KE4 Magnetics Model Name Sample Date IGRF200510 12/31 /2009 Design ODSN-20 KE4 wp08 Audit Notes: Version: Phase: Vertical Section: Depth From (TVD) (usft) 42.7 6,031,151.32usft Latitude: 469,920.45 us# Longitude: 13-3/16" Grid Convergence: 70° 29' 46.242 N 150° 14' 45.465 W -0.23 6,031,033.50 usfl Latitude: 70° 29' 45.078 N 469,803.59 usfl Longitude: 150° 14' 48.891 W usft Fround Level: 13.5 usft Declination Dip Angle Field Strength (°)°) (nT) 21.99 80.81 57,759 PLAN Tie On Depth: 42.7 +N/-S +E/-W Direction (usft) (usft) (°) 0.0 0.0 312.36 1142013 9:21:58AM Page 2 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: Company: Project: Site: Well: Wellbore: Design: EDMAKPRD Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-20 ODSN-20 KE4 ODSN-20 KE4 wp08 Local Co-ordinate Reference: Well ODSN-20 TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) North Reference: True Survey Calculation Method: Minimum Curvature Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +N/S +E/-W Rate Rate Rate Tool Face (usft) (°) (°) (usft) usft (usft) (usft) (°/100usfti (°1100usft) (°/100usft) 42.7 0.00 0.00 42.7 -13.5 0.0 0.0 0.00 0.00 0.00 0.00 225.0 0.00 310.00 225.0 168.8 0.0 0.0 0.00 0.00 0.00 310.00 1,025.0 20.00 310.00 1,008.9 952.7 88.8 -105.9 2.50 2.50 0.00 310.00 2,725.7 62.46 306.07 2,259.0 2,202.8 750.3 -974.5 2.50 2.50 -0.23 -5.16 10,921.9 62.46 306.07 6,049.1 5,992.9 5,029.1 -6,852.6 0.00 0.00 0.00 0.00 11,668.9 85.00 319.98 6,258.0 6,201.8 5,517.5 -7,368.6 3.50 3.02 1.86 32.92 11,968.9 85.00 319.98 6,284.2 6,228.0 5,746.4 -7,560.7 0.Q0 0.00 0.00 0.00 12,002.6 86.01 319.98 6,286.8 6,230.6 5,772.1 -7,582.4 3.00 3.00 0.01 0.12 12,717.7 86.01 319.98 6,336.6 6,280.4 6,314.5 -8,041.1 0.00 0.00 0.00 0.00 12,850.7 90.00 319.95 6,341.2 6,285.0 6,420.2 -8,126.5 3.00 3.00 -0.02 -0.38 13,009.0 94.75 319.95 6,334.6 6,278.4 6,541.2 -8,228.3 3.00 3.00 0.00 0.00 13,473.2 94.75 319.95 6,296.2 6,240.0 6,896.4 -8,525.9 0.00 0.00 0.00 0.00 13,882.0 90.88 318.64 6,276.1 6,219.9 7,204.9 -8,792.2 1.00 -0.95 -0.32 -161.22 14,471.3 90.88 318.64 6,267.1 6,210.9 7,647.1 -9,181.5 0.00 0.00 0.00 0.00 14,542.7 90.56 318.00 6,266.2 6,210.0 7,700.4 -9,229.0 1.00 -0.45 -0.89 -116.50 14,576.5 90.54 317.49 6,265.9 6,209.7 7,725.4 -9,251.7 1.52 -0.06 -1.52 -92.28 14,950.7 90.54 317.49 6,262.4 6,206.2 8,001.3 -9,504.6 0.00 0.00 0.00 0.00 15,195.3 90.00 320.00 6,261.2 6,205.0 8,185.1 -9,665.9 1.05 -0.22 1.03 102.11 15,283.8 89.98 320.88 6,261.2 6,205.0 8,253.3 -9,722.2 1.00 -0.02 1.00 91.18 15,854.1 89.98 320.88 6,261.4 6,205.2 8,695.8 -10,082.0 0.00 0.00 0.00 0.00 16,091.6 87.70 321.54 6,266.2 6,210.0 8,880.E -10,230.8 1.00 -0.96 0.28 163.99 16,107.1 87.55 321.56 6,266.8 6,210.6 8,893.0 -10,240.4 1.00 -0.99 0.12 172.86 16,964.2 87.55 221.56 6,303.5 6,247.3 9,563.8 -10,772.8 0.00 0.00 0.00 0.00 17,088.0 90.00 321.24 6,306.2 6,250.0 9,660.5 -10,850.0 2.00 1.98 -0.26 -7.47 17,254.9 95.01 321.24 6,298.9 6,242.7 9,790.4 -10,954.3 3.00 3.00 0.00 -0.01 18,202.8 95.01 321.24 6,216.2 6,160.0 10,526.7 -11,545.6 0.00 0.00 0.00 0.00 1142013 9:21:56AM Page 3 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Fasting DLS Vert Section (usft) V) V) (usft) usft (usft) (usft) (usft) (usft) -13.50 42.7 0.00 0.00 42.7 -13.5 0.0 0.0 6,031,033.50 469,803.59 0.00 0.00 100.0 0.00 310.00 100.0 43.8 0.0 0.0 6,031,033.50 469,803.59 0.00 0.00 200.0 0.00 310.00 200.0 143.8 0.0 0.0 6,031,033.50 469,803.59 0.0Q 0.00 225.0 0.00 310.00 225.0 168.8 0.0 0.0 6,031,033.50 469,803.59 0.00 0.00 Start Dir 2.50/100': 225' MD, 225'TVD: 310* RT TF 300.0 1.88 310.00 300.0 243.8 0.8 -0.9 6,031,034.29 469,802.65 2.50 1.23 400.0 4.38 310.00 399.8 343.6 4.3 -5.1 6,031,037.81 469,798.49 2.50 6.67 500.0 6.88 310.00 499.3 443.1 10.6 -12.6 6,031,044.14 469,791.01 2.50 16.47 600.0 9.38 310.00 598.3 542.1 19.7 -23.4 6,031,053.27 469,780.22 2.50 30.59 700.0 11.88 310.00 696.6 640.4 31.5 -37.6 6,031,065.18 469,766.15 2.50 49.01 800.0 14.38 310.00 794.0 737.8 46.1 -55.0 6,031,679.84 469,748.81 2.50 71.69 861.1 15.90 310.00 853.0 796.8 56.4 -67.2 6,031,090.15 469,736.63 2.50 87.65 Top of Permafrost 900.0 16.88 310.00 890.3 834.1 63.4 -75.6 6,031,097.24 469,728.26 2.50 98.60 1,000.0 19.38 310.00 985.3 929.1 83.4 -99.4 6,031,117.33 469,704.51 2.50 129.68 1,025.0 20.00 310.00 1,008.9 952.7 88.8 -105.9 6,031,122.76 469,698.08 2.50 138.10 1,100.0 21.87 309.55 1,078.9 1,022.7 106.0 -126.5 6,031,139.99 469,677.56 2.50 164.87 1,200.0 24.36 309.05 1,170.9 1,114.7 130.8 -156.9 6,031,164.96 469,647.28 2.50 204.06 1,300.0 26.85 308.63 1,261.0 1,204.8 157.9 -190.5 6,031,192.19 469,613.73 2.50 247.20 1,400.0 29.35 308.2A 1,349.2 1,293.0 187.2 -227.4 6,031,221.63 469,576.97 2.50 294.19 1,500.0 31.84 307.99 1,435.3 1,279.1 218.7 -267.4 6,031,253.22 469,537.07 2.50 344.94 1,600.0 34.34 307.73 1,519.1 1,462.9 252.2 -310.5 6,031,286.89 469,494.10 2.50 399.37 1,700.0 36.84 307.50 1,600.4 1,544.2 287.7 -356.6 6,031,322.59 469,448.16 2.50 457.36 1,785.7 38.98 367.33 1,668.0 1,611.8 319.7 -398.4 6,031,354.74 469,406.48 2.50 509.80 Base of Permafrost 1,800.0 39.33 307.30 1,679.1 1,622.9 325.1 -405.6 6,031,360.25 469,399.32 2.50 518.81 1,844.2 40.44 11)7.22 1,713.0 1,656.8 342.3 -428.2 6,031,377.49 469,376.84 2.50 547.02 Ugnu D 1,900.0 41.83 307.12 1,755.E 1,698.8 364.5 -457.4 6,031,399.79 469,347.67 2.50 583.59 2,000.0 44.33 308.96 1,828.1 1,771.9 405.6 -512.0 6,031,441.14 469,293.33 2.50 651.60 2,100.0 46.83 306.80 1,898.1 1,841.9 448.5 -569.1 6,031,484.23 469,236.39 2.50 722.68 2,200.0 49.32 306.67 1,964.9 1,908.7 493.0 -628.7 6,031,528.96 469,176.95 2.50 796.72 2,300.0 51.82 306.54 2,028.4 1,972.2 539.0 -690.7 6,031,575.26 469,115.14 2.50 873.57 2,400.0 54.32 306.42 2,088.5 2,032.3 586.5 -755.0 6,031,623.03 469,051.06 2.50 953.08 2,500.0 56.82 306.30 2,145.0 2,088.8 635.4 -821.4 6,031,672.19 468,984.85 2.50 1,035.10 2,600.0 59.32 3Q6.20 2,197.9 2,141.7 685.6 -889.8 6,031,722.64 468,916.63 2.50 1,119.48 2,700.0 61.81 306.10 2,247.0 2,190.8 737.0 -960.2 6,031,774.29 468,846.52 2.50 1,206.05 2,725.7 62.46 306.07 2,259.0 2,202.8 750.3 -978.5 6,031,787.74 468,828.22 2.50 1,228.64 End Din 2725.7' MD, 2259' TVD 2,764.7 62.46 306.07 2,277.1 2,220.9 770.7 -1,006.5 6,031,808.20 468,800.37 0.00 1,262.99 Top West Sak 2,800.0 62.46 306.07 2,293.4 2,237.2 789.1 -1,031.8 6,031,826.74 468,775.13 0.00 1,294.12 2,900.0 62.46 306.07 2,339.6 2,283.4 841.3 -1,103.4 6,031,879.23 468,703.68 0.00 1,382.25 3,000.0 62.46 306.07 2,385.9 2,329.7 893.5 -1,175.1 6,031,931.72 468,632.23 0.00 1,470.39 3,100.0 62.46 306.07 2,432.1 2,375.9 945.7 -1,246.8 6,031,984.21 468,560.78 0.00 1,558.52 1/4/2013 9:21:58AM Page 4 COMPASS 5000.1 Build 61 HALLIBURTON Database: EDMAKPRD Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Depth Inclination Azimuth (usft) V) V) 3,200.0 62.46 306.07 3,300.0 62.46 306.07 3,400.0 62.46 306.07 3,500.0 62.46 306.07 3,600.0 62.46 306.07 3,700.0 62.46 306.07 3,800.0 62.46 306.07 3,900.0 62.46 306.07 4,000.0 62.46 306.07 4,100.0 62.46 306.07 4,123.0 62.46 306.07 Cret tuffs 4,200.0 4,300.0 4,400.0 4,500.0 4,600.0 4,700.0 4,781.4 Hue 2 shale 4,800.0 4,801.6 11 3/4" Local Co-ordinate Reference: ND Reference: MD Reference: North Reference: Survey Calculation Method: Pioneer Natural Resources Standard Proposal Report Well ODSN-20 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 42.7' + 13.5' @ 56.2usft (Nabors 19AC) True Minimum Curvature Vertical Map Map Depth TVDss +N/S +El-W Northing Easting US Vert Section (usft) usft (usft) (usft) (usft) (usft) 2,422.16 2,478.4 2,422.2 998.0 -1,318.4 6,032,036.70 468,489.33 0.00 1,646.65 2,524.6 2,468.4 1,050.2 -1,390.1 6,032,089.19 468,417.89 0.00 1,734.78 2,570.8 2,514.6 1,102.4 -1,461.8 6,032,141.68 468,346.44 0.06 1,822.92 2,617.1 2,560.9 1,154.6 -1,533.5 6,032,194.17 468,274.99 0.00 1,911.05 2,663.3 2,607.1 1,206.8 -1,605.1 6,032,246.66 468,203.54 0.00 1,999.18 2,709.6 2,653.4 1,259.0 -1,676.8 6,032,299.15 468,132.09 0.00 2,087.32 2,755.8 2,699.6 1,311.2 -1,748.5 6,032,351.64 468,060.64 0.00 2,175.45 2,802.1 2,745.9 1,363.4 -1,820.1 6,032,404.13 467,989.19 0.00 2,263.58 2,848.3 2,792.1 1,415.6 -1,891.8 6,032,466.62 467,917.74 0.00 2,351.71 2,894.5 2,838.3 1,467.8 -1,963.5 6,032,509.11 467,846.30 0.00 2,439.85 2,905.2 2,849.0 1,479.8 -1,979.9 6,032,521.17 467,829.89 0.00 2,460.08 62.46 306.07 2,940.8 2,884.6 1,520.0 -2,035.1 6,032,561.60 467,774.85 0.00 2,527.98 62.46 306.07 2,987.0 2,930.8 1,572.2 -2,106.8 6,032,614.09 467,703.40 0.00 2,616.11 62.46 306.07 3,033.3 2,977.1 1,624.4 -2,178.5 6,032,666.58 467,631.95 0.00 2,704.25 62.46 306.07 3,079.5 3,023.3 1,676.6 -2,250.1 6,032,719.07 467,560.50 0.00 2,792.38 62.46 306.07 3,125.8 3,069.6 1,728.8 -2,321.8 6,032,771.56 467,489.05 0.00 2,880.51 62.46 306.07 3,172.0 3,115.8 1,781A -2,393.5 6,032,824.05 467,417.60 0.00 2,968.64 62.46 306.07 3,209.6 3,153.4 1,823.5 -2,451.8 6,032,866.78 467,359.44 0.00 3,040.39 62.46 306.07 3,218.2 3,162.0 1,833.2 -2,465.1 6,032,876.54 467,346.15 0.00 3,056.78 62.46 306.07 3,219.0 3,162.8 1,834.1 -2,466.3 6,032,877.41 467,344.98 0.00 3,058.23 4,900.0 62.46 306.07 3,264.5 3,208.3 1,885.4 -2,536.8 6,032,929.03 467,274.71 0.00 3,144.91 5,000.0 62.46 306.67 3,310.7 3,254.5 1,937.6 -2,608.5 6,032,981.52 467,203.26 0.00 3,233.04 5,100.0 62.46 306.07 3,357.0 3,300.8 1,989.8 -2,680.2 6,033,034.01 467,131.81 0.00 3,321.17 5,200.41 62.46 166.07 3,403.2 3,347.0 2,042.0 -2,751.8 6,033,086.50 467,060.36 0.00 3,409.31 5,300.0 62.46 306.07 3,449.4 3,393.2 2,094.2 -2,823.5 6,033,138.99 466,988.91 0.00 3,497.44 5,400.0 62.46 306.07 3,495.7 3,439.5 2,146.5 -2,895.2 6,033,191.48 466,917.46 0.00 3,585.57 5,500.0 62.46 306.07 3,541.9 3,485.7 2,198.7 -2,966.8 6,033,243.97 466,846.01 0.00 3,673.71 5,600.0 62.46 306.07 3,588.2 3,532.0 2,250.9 -3,038.5 6,033,296.46 466,774.56 0.00 3,761.84 5,700.0 62.46 306.07 3,634.4 3,578.2 2,303.1 -3,110.2 6,033,348.95 466,703.12 0.00 3,849.97 5,800.0 62.46 306.07 3,680.7 3,624.5 2,355.3 -3,181.8 6,033,401.44 466,631.67 0.00 3,938.10 5,900.0 62.46 306.07 3,726.9 3,670.7 2,407.5 -3,253.5 6,033,453.93 466,560.22 0.00 4,026.24 6,000.0 62.46 306.07 3,773.1 3,716.9 2,459.7 -3,325.2 6,033,506.42 466,488.77 0.00 4,114.37 6,100.0 62.46 306.07 3,819.4 3,763.2 2,511.9 -3,396.8 6,033,558.91 466,417.32 0.00 4,202.50 6,200.0 62.46 306.07 3,865.6 3,809.4 2,564.1 -3,468.5 6,033,611.40 466,345.87 0.00 4,290.64 6,300.0 63.46 306.07 3,911.9 3,855.7 2,616.3 -3,540.2 6,033,663.89 466,274.42 0.00 4,378.77 6,400.0 62.46 306.07 3,958.1 3,901.9 2,668.5 -3,611.8 6,033,716.38 466,202.97 0.00 4,466.90 6,500.0 62.46 306.07 4,004.4 3,948.2 2,720.7 -3,683.5 6,033,768.87 466,131.53 0.00 4,555.03 6,600.0 62.46 306.07 4,050.6 3,994.4 2,772.9 -3,755.2 6,033,821.36 466,060.08 0.00 4,643.17 6,700.0 62.46 306.07 4,096.8 4,040.6 2,825.1 -3,826.8 6,033,873.85 465,988.63 0.00 4,731.30 6,800.0 62.46 306.07 4,143.1 4,086.9 2,877.3 -3,898.5 6,033,926.34 465,917.18 0.00 4,819.43 6,900.0 62.46 306.07 4,189.3 4,133.1 2,929.5 -3,970.2 6,033,978.83 465,845.73 0.00 4,907.57 7,000.0 62.46 306.07 4,235.6 4,179.4 2,981.7 -4,041.9 6,034,031.32 465,774.28 0.00 4,995.70 11412013 9:21:58AM Page 5 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: Company: Project: Site: Well: Wellbore: Design: EDMAKPRD Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-20 ODSN-20 KE4 ODSN-20 KE4 wp08 Local Co-ordinate Reference: Well ODSN-20 TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) North Reference: True Survey Calculation Method: Minimum Curvature Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (usft) n n (usft) usft (usft) (usft) (usft) (usft) 4,225.61 7,100.0 62.46 306.07 4,281.8 4,225.6 3,033.9 -4,113.5 6,034,083.81 465,702.83 0.00 5,083.83 7,119.4 62.46 306.07 4,290.8 4,234.6 3,044.1 -4,127.5 6,034,094.02 465,688.94 0.00 5,100.97 Brookian 2B 7,200.0 62.46 306.07 4,328.0 4,271.8 3,086.1 -4,185.2 6,034,136.30 465,631.38 0.00 5,171.96 7,300.0 62.46 306.07 4,374.3 4,318.1 3,138.3 -4,256.9 6,034,188.79 465,559.94 0.00 5,260.10 7,400.0 62.46 306.07 4,420.5 4,364.3 3,190.5 -4,338.5 6,034,241.28 465,488.49 0.00 5,348.23 7,500.0 62.46 306.07 4,466.8 4,410.6 3,242.7 -4,400.2 6,034,293.77 465,417.04 0.00 5,436.36 7,600.0 62.46 306.07 4,513.0 4,456.8 3,294.9 -4,471.9 6,034,346.26 465,345.59 0.00 5,524.49 7,700.0 62.46 306.07 4,559.3 4,503.1 3,347.2 4,543.5 6,034,398.75 465,274.14 0.00 5,612.63 7,800.0 62.46 306.07 4,605.5 4,549.3 3,399.4 -4,615.2 6,034,451.24 465,202.69 0.00 5,700.76 7,900.0 62.46 306.07 4,651.7 4,595.5 3,451.6 -4,686.9 6,034,503.73 465,131.24 0.00 5,788.89 8,000.0 62.46 306.07 4,698.0 4,641.8 3,503.8 -4,758.5 6,034,556.22 465,059.79 0.00 5,877.03 8,100.0 62.46 306.07 4,744.2 4,68a.0 3,556.0 4,830.2 6,034,608.71 464,988.35 0.00 5,965.16 8,200.0 62.46 306.07 4,790.5 4,734.3 3,608.2 4,901.9 6,034,661.20 464,916.90 0.00 6,053.29 8,300.0 62.46 306.07 4,836.7 4,780.5 3,660.4 -4,973.5 6,034,713.69 464,845.45 0.00 6,141.42 8,400.0 62.46 306.07 4,883.0 4,826.8 3,712.6 -5,045.2 6,034,766.18 464,774.00 0.00 6,229.56 8,500.0 62.46 306.07 4,929.2 4,873.0 3,764.8 -5,116.9 6,034,818.67 464,702.55 0.00 6,317.69 8,600.0 62.46 306.07 4,975.4 4,919.2 3,817A -5,188.5 6,034,871.16 464,631.10 0.00 6,405.82 8,673.0 62.46 306.07 5,009.2 4,953.0 3,855.1 -5,240.9 6,034,909.48 464,578.94 0.00 6,470.17 Top Torok Sand 8,700.0 62.46 306.07 5,021.7 4,05.5 3,869.2 -5,260.2 6,034,923.65 464,559.65 0.00 6,493.96 8,800.0 62.46 306.07 5,067.9 5,011.7 3,921.4 -5,331.9 6,034,976.14 464,488.20 0.00 6,582.09 8,900.0 62.46 306.07 5,114.2 5,058.0 3,973.6 -5,403.6 6,035,028.63 464,416.76 0.00 6,670.22 9,000.0 62.46 366.07 5,160.4 5,104.2 4,025.8 -5,475.2 6,035,081.12 464,345.31 0.00 6,758.35 9,100.0 62.46 306.017 5,206.6 5,150.4 4,078.0 -5,546.9 6,035,133.61 464,273.86 0.00 6,846.49 9,160.4 62.46 306.07 5,234.6 5,178.4 4,109.6 -5,590.2 6,035,165.33 464,230.67 0.00 6,899.76 Base Torok Sand 9,200.0 62.46 306.07 5,252.9 5,196.7 4,130.2 -5,618.6 6,035,186.10 464,202.41 0.00 6,934.62 9,300.0 62.46 306.07 5,299.1 5,242.9 4,182.4 -5,690.2 6,035,238.59 464,130.96 0.00 7,022.75 9,400.0 62.46 30e.07 5,345.4 5,289.2 4,234.6 -5,761.9 6,035,291.08 464,059.51 0.00 7,110.88 9,500.0 62.46 306.07 5,391.6 5,335.4 4,286.8 -5,833.6 6,035,343.57 463,988.06 0.00 7,199.02 9,586.7 62.46 306.07 5,431.7 5,375.5 4,332.1 -5,895.7 6,035,389.07 463,926.13 0.00 7,275.41 Torok 1 Shale 9,597.5 62.46 306.07 5,436.7 5,380.5 4,337.7 -5,903.4 6,035,394.74 463,918.40 0.00 7,284.94 9 5/8" 9,600.0 62.46 306.07 5,437.9 5,381.7 4,339.0 -5,905.2 6,035,396.06 463,916.61 0.00 7,287.15 9,700.0 62.46 306.07 5,484.1 5,427.9 4,391.2 -5,976.9 6,035,448.55 463,845.17 0.00 7,375.28 9,800.0 62.46 306.07 5,530.3 5,474.1 4,443.4 -6,048.6 6,035,501.04 463,773.72 0.00 7,463.42 9,900.0 62.46 306.07 5,576.6 5,520.4 4,495.6 -6,120.2 6,035,553.53 463,702.27 0.00 7,551.55 10,000.0 62.46 306.07 5,622.8 5,566.6 4,547.9 -6,191.9 6,035,606.02 463,630.82 0.00 7,639.68 10,100.0 62.46 306.07 5,669.1 5,612.9 4,600.1 -6,263.6 6,035,658.51 463,559.37 0.00 7,727.81 10,200.0 62.46 306.07 5,715.3 5,659.1 4,652.3 -6,335.2 6,035,711.00 463,487.92 0.00 7,815.95 10,300.0 62.46 306.07 5,761.6 5,705.4 4,704.5 -6,406.9 6,035,763.49 463,416.47 0.00 7,904.08 10,400.0 62.46 306.07 5,807.8 5,751.6 4,756.7 -6,478.6 6,035,815.98 463,345.02 0.00 7,992.21 10,500.0 62.46 306.07 5,854.0 5,797.8 4,808.9 -6,550.2 6,035,868.46 463,273.58 0.00 8,080.35 11412013 9:21:58AM Page 6 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: Company: Project: Site: Well: Weilbore: Design: EDMAKPRD Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-20 ODSN-20 KE4 ODSN-20 KE4 wp08 Local Co-ordinate Reference: Well ODSN-20 TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) North Reference: True Survey Calculation Method: Minimum Curvature Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting US Vert Section (usft) n n (usft) usft (usft) (usft) (usft) (usft) 5,826.30 10,561.5 62.46 306.07 5,882.5 5,826.3 4,841.0 -6,594.4 6,035,900.77 463,229.60 0.00 8,134.59 Top HRZ 10,600.0 62.46 306.07 5,900.3 5,844.1 4,861.1 -6,621.9 6,035,920.95 463,202.13 0.00 8,168.48 10,700.0 62.46 306.07 5,946.5 5,890.3 4,913.3 -6,693.6 6,035,973.44 463,130.68 0.00 8,256.61 10,800.0 62.46 306.07 5,992.8 5,936.6 4,965.5 -6,765.3 6,036,025.93 463,059.23 0.00 8,344.74 10,848.5 62.46 306.07 6,015.2 5,959.0 4,990.8 -6,8m0.0 6,036,051.40 463,024.56 0.00 8,387.50 Base HRZ (Top Kalubik Sh) 10,900.0 62.46 306.07 6,039.0 5,982.8 5,017.7 -6,836.9 6,036,078.42 462,987.78 0.00 8,432.88 10,921.9 62.46 306.07 6,049.1 5,992.9 5,029.1 -6,852.6 6,036,089.92 462,972.13 0.00 8,452.18 Start Dir 3.50/100% 10921.9' MD, 6049.2'TVD 11,000.0 64.76 307.71 6,083.8 6,027.6 5,071.1 -6,908.6 6,036,132.14 462,916.37 3.50 8,521.81 11,054.5 66.38 308.82 6,106.4 6,050.2 5,101.9 -6,947.5 6,036,163.04 462,877.53 3.50 8,571.33 Kalubik Marker 11,100.0 67.74 309.73 6,124.1 6,067.9 5,128.4 -6,979.9 6,036,189.68 462,845.22 3.50 8,613.14 11,200.0 70.73 311.65 6,159.6 6,103.4 5,189.3 -7,050.8 6,036,250.92 462,774.60 3.50 8,706.59 11,253.8 72.36 312.66 6,176.6 6,120.4 5,223.6 -7,088.6 6,036,285.31 462,736.94 3.50 8,757.59 Top P Ku aruk C 11,300.0 73.75 313.51 6,190.1 6,133.9 5,253.8 -7,120.9 6,036,315.65 462,704.77 3.50 8,801.81 11,334.4 74.80 314.14 6,199.4 6,143.2 5,276.7 -7,144.8 6,036,338.67 462,680.97 3.50 8,834.92 LCU (Top Miluveach Sh) 11,400.0 76.79 315.32 6,215.5 6,159.3 5,321.5 -7,190.0 6,036,383.60 462,635.99 3.50 8,898.45 11,500.0 79.83 317.08 6,235.8 6,179.6 5,392.1 -7,257.7 6,036,454.54 462,568.52 3.50 8,996.14 11,600.0 82.89 318.80 6,250.8 6,194.6 5,465.5 -7,324.0 6,036,528.20 462,502.61 3.50 9,094.52 11,668.9 85.00 319.98 6,258.A 6,201.8 5,517.5 -7,368.6 6,036,580.39 462,458.23 3.50 9,162.51 End Die 11668.9' MD, 6258' TVD 11,700.0 85.00 319.98 6,260.8 6,204.6 5,541.3 -7,388.5 6,036,604.19 462,438.41 0.00 9,193.22 11,721.2 85.00 319.98 6,262.6 6,206.4 5,557.4 -7,402.1 6,036,620.42 462,424.89 0.00 9,214.15 BCU (Top Kingak Sh) 11,800.0 85.00 319.98 6,269.5 6,213.3 5,617.6 -7,452.5 6,036,680.73 462,374.66 0.00 9,291.96 11,893.3 85.00 319.98 6,277.6 6,221.4 5,688.7 -7,512.3 6,036,752.15 462,315.18 0.00 9,384.09 I Top Nuiqsut 11,900.0 85.00 319.98 6,278.2 6,222.0 5,693.8 -7,516.6 6,036,757.27 462,310.91 0.00 9,390.70 11,924.3 85.00 319.98 6,280.3 6,224.1 5,712.4 -7,532.2 6,036,775.86 462,295.43 0.00 9,414.68 Nuigsut 1 11,968.0 85.00 319.98 6,284.1 6,227.9 5,745.7 -7,560.2 6,036,809.32 462,267.57 0.00 9,457.84 7" 11,968.9 85.00 319.98 6,284.2 6,228.0 5,746.4 -7,560.7 6,036,810.01 462,266.99 0.00 9,458.73 Start Dir 30/100': 11968.9' MD, 6284.2'TVD 12,002.6 86.01 319.98 6,286.8 6,230.6 5,772.1 -7,582.4 6,036,835.82 462,245.50 3.00 9,492.03 End Dir: 12002.6' MD, 6286.8' TVD 12,100.0 86.01 319.98 6,293.6 6,237.4 5,846.6 -7,644.8 6,036,910.48 462,183.32 0.00 9,588.33 12,200.0 86.01 319.98 6,300.6 6,244.4 5,922.9 -7,709.0 6,036,987.13 462,119.49 0.00 9,687.21 12,300.0 86.01 319.98 6,307.5 6,251.3 5,999.3 -7,773.1 6,037,063.78 462,055.66 0.00 9,786.09 12,400.0 86.01 319.98 6,314.5 6,258.3 6,075.7 -7,837.3 6,037,140.43 461,991.83 0.00 9,884.96 12,500.0 86.01 319.98 6,321.4 6,265.2 6,152.1 -7,901.4 6,037,217.07 461,928.00 0.00 9,983.84 12,600.0 86.01 319.98 6,328.4 6,272.2 6,228.5 -7,965.6 6,037,293.72 461,864.16 0.00 10,082.71 1/42013 9:21:58AM Page 7 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/S +E/-W Northing Easting DLS Vert Section (usft) V) V) (usft) usft (usft) (usft) (usft) (usft) 6,279.14 12,700.0 86.01 319.98 6,335.3 6,279.1 6,304.9 -8,029.7 6,037,370.37 461,800.33 0.00 10,181.59 12,717.7 86.01 319.98 6,336.6 6,280.4 6,318.5 -8,041.1 6,037,383.94 461,789.03 0.00 10,199.09 Start Dir 30/100': 12717.7' MD, 6336.6'TVD 12,800.0 88.48 319.96 6,340.5 6,284.3 6,381.4 -8,093.9 6,037,447.09 461,736.43 3.00 10,280.57 12,850.7 90.00 319.95 6,341.2 6,285.0 6,420.2 -8,126.5 6,037,486.00 461,704.00 3.00 10,330.78 12,900.0 91.48 319.95 6,340.6 6,284.4 6,457.9 -8,148.3 6,037,523.89 461,672.42 3.00 10,379.68 13,009.0 94.75 319.95 6,334.6 6,278.4 6,541.3 -8,228.3 6,037,607.47 461,602.74 3.00 10,487.54 End Dir: 13009' MD, 6334.6' TVD 13,100.0 94.75 319.95 6,327.1 6,270.9 6,610.7 -8,286.6 6,037,677.13 461,544.68 0.00 10,577.44 13,200.0 94.75 319.95 6,318.8 6,262.6 6,687.0 -8,350.8 6,037,753.67 461,480.88 0.00 10,676.22 13,300.0 94.75 319.95 6,310.5 6,254.3 6,763.3 -8,414.9 6,037,830.21 461,417.08 0.00 10,775.00 13,400.0 94.75 319.95 6,302.3 6,246.1 6,839.5 -8,479.0 6,037,906.75 461,353.28 0.00 10,873.78 13,473.2 94.75 319.95 6,296.2 6,240.0 6,895.4 -8,525.9 6,037,962.78 461,306.57 0.00 10,946.09 Start Dir 10/100': 13473.2' MD, 6296.2'TVD 13,500.0 94.50 319.87 6,294.0 6,237.8 6,S415.8 -8,543.1 6,037,983.29 461,289.45 1.00 10,972.57 13,600.0 93.55 319.54 6,287.0 6,230.8 6,991.9 -8,607.7 6,038,059.62 461,225.26 1.00 11,071.50 13,700.0 92.60 319.22 6,281.7 6,225.5 7,067.7 -8,672.7 6,038,135.68 461,160.57 1.00 11,170.61 13,800.0 91.66 318.90 6,277.9 6,221.7 7,143.1 -8,738.1 6,038,211.43 461,095.41 1.00 11,269.85 13,882.0 90.88 318.64 6,276.1 6,219.9 7,204.9 -8,792.2 6,038,273.32 461,041.61 1.00 11,351.35 13,882.5 90.88 318.6A 6,276.1 6,219.9 7,205.2 -8,792.5 6,038,273.67 461,041.30 0.00 11,351.82 End Dir: 13882.5' MD, 6276.1' TVD 13,900.0 90.88 318.64 6,275.9 111,219.7 7,218.4 -8,804.1 6,038,286.85 461,029.80 0.00 11,369.21 14,000.0 90.88 318.64 6,274.3 6,218.1 7,293.4 -8,870.1 6,038,362.16 460,964.03 0.00 11,468.60 14,100.0 90.88 318.64 6,272.d 6,216.6 7,368.5 -8,936.2 6,038,437.46 460,898.27 0.00 11,567.99 14,200.0 90.88 318.64 6,271.3 6,215.1 7,443.5 -9,002.3 6,038,512.77 460,832.51 0.00 11,667.37 14,300.0 90.88 318.64 6,269.7 6,213.5 7,518.5 -9,068.3 6,038,588.08 460,766.75 0.00 11,766.76 14,400.41 90.88 148.64 6,268.2 6,212.0 7,593.6 -9,134.4 6,038,663.38 460,700.99 0.00 11,866.15 14,471.3 90.88 318.64 6,267.1 6,210.9 7,647.1 -9,181.5 6,038,717.09 460,654.10 0.00 11,937.02 14,472.4 90.87 318.63 6,267.1 6,210.9 7,647.9 -9,182.3 6,038,717.91 460,653.38 1.00 11,938.11 Start Dir 10/100% 14472.4' MD, 6267.1'TVD 14,500.0 90.75 318.38 6,266.7 6,210.5 7,668.6 -9,200.5 6,038,738.65 460,635.18 1.00 11,965.55 14,542.6 90.56 318.00 6,266.2 6,210.0 7,700.3 -9,228.9 6,038,770.51 460,606.92 1.00 12,007.92 Start Dir 1.520/100': 14542.6' MD, 6266.2'TVD 14,542.7 90.56 318.00 6,266.2 6,210.0 7,700.4 -9,229.0 6,038,770.56 460,606.87 1.00 12,007.99 14,574.5 90.54 317.52 6,265.9 6,209.7 7,724.0 -9,250.4 6,038,794.21 460,585.57 1.52 12,039.68 End Dir: 14574.5' MD, 6265.9' TVD 14,576.5 90.54 317.49 6,265.9 6,209.7 7,725.4 -9,251.7 6,038,795.70 460,584.22 1.52 12,041.68 14,600.0 90.54 317.49 6,265.7 6,209.5 7,742.8 -9,267.6 6,038,813.08 460,568.42 0.00 12,065.08 14,700.0 90.54 317.49 6,264.7 6,208.5 7,816.5 -9,335.2 6,038,887.05 460,501.15 0.00 12,164.67 14,800.0 90.54 317.49 6,263.8 6,207.6 7,890.2 -9,402.8 6,038,961.03 460,433.88 0.00 12,264.27 14,900.0 90.54 317.49 6,262.8 6,206.6 7,963.9 -9,470.3 6,039,035.00 460,366.62 0.00 12,363.86 14,950.7 90.54 317.49 6,262.4 6,206.2 8,001.3 -9,504.6 6,039,072.50 460,332.52 0.00 12,414.35 14,953.5 90.53 317.52 6,262.3 6,206.1 8,003.3 -9,506.5 6,039,074.58 460,330.63 1.05 12,417.14 Start Dir 1.050/100': 14953.5' MD, 6262.3'TVD 15,000.0 90.43 317.99 6,261.9 6,205.7 8,037.7 -9,537.7 6,039,109.12 460,299.51 1.05 12,463.44 11412013 9:21:58AM Page 8 COMPASS 5000.1 Build 61 HALLIBURTON Database: EDMAKPRD Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Site: Oooguruk Drill Site Well: ODSN-20 Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Depth Inclination Azimuth Depth (usft) V) V) (usft) 15,100.0 90.21 319.02 6,261.4 15,195.3 90.00 320.00 6,261.2 Start Dir 10/100': 15195.3' MD, 6261.21TVD 15,200.0 90.00 320.05 6,261.2 15,283.8 89.98 320.88 6,261.2 15,283.9 89.98 320.88 6,261.2 End Dir: 15283.9' MD, 6261.2' TVD 15,300.0 89.98 320.88 6,261.2 15,400.0 89.98 320.88 6,261.3 15,500.0 89.98 320.88 6,261.3 15,600.0 89.98 320.88 6,261.3 15,700.0 89.98 320.88 6,261.3 15,800.0 89.98 320.88 6,261.4 15,854.1 89.98 320.88 6,261.4 Start Dir 10/100% 15854.1' MD, 6261.4'TVD 15,900.0 89.54 321.01 6,261.6 16,000.0 88.58 321.29 6,263.2 16,091.6 87.70 321.54 6,266.2 16,107.1 87.55 321.56 6,266.8 End Dir: 16107.1' MD, 6266.8' TVD 16,200.0 87.55 321.56 6,270.8 16,300.0 87.55 321.56 6,275.1 16,400.0 87.55 321.56 6,279.4 16,500.0 87.55 321.56 6,283.9 16,600.0 87.55 321.56 6,288.0 16,700.0 87.55 321.56 6,292.2 16,800.4 87.55 W1.56 6,296.5 16,900.0 87.55 321.56 6,360.8 16,964.2 87.55 321.56 6,303.5 Start Dir 20/100': 16964.2' MD, 6303.51TVD 17,000.0 88.25 321.47 6,304.9 17,088.0 90.00 321.24 6,306.2 Start Dir 30/100': 17088' MD, 6306.21TVD 17,100.0 90.36 321.24 6,306.2 17,200.0 93.36 321.24 6,302.9 17,254.9 95.01 321.24 6,298.9 End Dir. 17254.9' MD, 6298.9' TVD 17,300.0 95.01 321.24 6,295.0 17,400.0 95.01 321.24 6,286.3 17,500.0 95.01 321.24 6,277.5 17,600.0 95.01 321.24 6,268.8 17,700.0 95.01 321.24 6,260.1 17,800.0 95.01 321.24 6,251.3 17,900.0 95.01 321.24 6,242.6 18,000.0 95.01 321.24 6,233.9 Pioneer Natural Resources Standard Proposal Report Local Co-ordinate Reference: Well ODSN-20 ND Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) North Reference: True Survey Calculation Method: Minimum Curvature Map Map TVDss +N/S +E/-W Northing Easting US Vert Section usft (usft) (usft) (usft) (usft) 6,205,17 6,205.2 8,112.6 -9,604.0 6,039,184.29 460,233.57 1.05 12,562.86 6,205.0 8,185.1 -9,665.9 6,039,257.01 460,172.00 1.05 12,657.41 6,205.0 8,188.7 -9,668.9 6,039,260.62 460,168.99 1.00 12,662.07 6,205.0 8,253.3 -9,722.2 6,039,325.44 460,115.93 1.00 12,745.01 6,205.0 8,253.4 -9,732.3 6,039,325.54 460,115.85 0.00 12,745.13 6,205.0 8,265.9 -9,732.5 6,039,338.07 460,105.75 0.00 12,761.06 6,205.1 8,343.5 -9,795.5 6,039,415.90 460,042.98 0.00 12,859.95 6,205.1 8,421.1 -9,858.6 6,039,493.74 459,980.22 0.00 12,958.84 6,205.1 8,498.7 -9,921.7 6,039,571.58 459,917.45 0.00 13,057.74 6,205.1 8,576.3 -9,984.8 6,039,649.41 459,854.68 0.00 13,156.63 6,205.2 8,653.9 -10,047.9 6,039,727.25 459,791.92 0.00 13,255.53 6,205.2 8,695.8 -10,082.0 6,039,769.36 459,757.96 0.00 13,309.03 6,205.4 8,731.5 -10,110.9 6,039,805.11 459,729.19 1.00 13,354.41 6,207.0 8,809.3 -10,173.7 6,039,883.23 459,666.79 1.00 13,453.22 6,210.0 8,8801 -10,230.8 6,039,955.00 459,610.00 1.00 13,543.62 6,210.6 8,893.0 -10,240.4 6,039,967.18 459,600.41 1.00 13,558.92 6,514.6 8,965.7 -10,298.1 6,040,040.10 459,543.01 0.00 13,650.54 6,218.9 9,044.0 -10,360.2 6,040,118.60 459,481.22 0.00 13,749.16 6,223.2 9,122.2 -10,422.3 6,040,197.10 459,419.43 0.00 13,847.79 6,227.5 9,200.5 -10,484.4 6,040,275.59 459,357.64 0.00 13,946.41 6,231.8 9,278.7 -10,546.6 6,040,354.09 459,295.85 0.00 14,045.03 6,236.0 9,357.0 -10,608.7 6,040,432.59 459,234.06 0.00 14,143.65 6,240.3 9,435.3 -10,670.8 6,040,511.09 459,172.27 0.00 14,242.28 6,244.6 9,513.5 -10,732.9 6,040,589.58 459,110.48 0.00 14,340.90 6,247.3 9,563.7 -10,772.8 6,040,639.98 459,070.81 0.00 14,404.22 6,248.7 9,591.7 -10,795.0 6,040,668.07 459,048.67 2.00 14,439.54 6,250.0 9,660.5 -10,850.0 6,040,737.00 458,994.00 2.00 14,526.44 6,250.0 9,669.8 -10,857.5 6,040,746.39 458,986.53 3.00 14,538.30 6,246.7 9,747.7 -10,920.1 6,040,824.56 458,924.28 3.00 14,637.03 6,242.7 9,790.4 -10,954.4 6,040,867.38 458,890.18 3.00 14,691.13 6,238.8 9,825.5 -10,982.5 6,040,902.53 458,862.19 0.00 14,735.52 6,230.1 9,903.1 -11,044.9 6,040,980.45 458,800.14 0.00 14,833.94 6,221.3 9,980.8 -11,107.2 6,041,058.37 458,738.09 0.00 14,932.37 6,212.6 10,058.5 -11,169.6 6,041,136.29 458,676.04 0.00 15,030.79 6,203.9 10,136.2 -11,232.0 6,041,214.21 458,613.99 0.00 15,129.22 6,195.1 10,213.8 -11,294.3 6,041,292.13 458,551.94 0.00 15,227.64 6,186.4 10,291.5 -11,356.7 6,041,370.05 458,489.89 0.00 15,326.07 6,177.7 10,369.2 -11,419.1 6,041,447.97 458,427.84 0.00 15,424.49 11412013 9:21:58AM Page 9 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-3 +E/-W Northing Easting US Vert Section (usft) (1) V) (usft) usft (usft) (usft) (usft) (usft) 6,168.97 18,100.0 95.01 321.24 6,225.2 6,169.0 10,446.9-11,481.5 6,041,525.89 458,365.79 0.00 15,522.92 18,202.7 95.01 321.24 6,216.2 6,160.0 10,526.6-11,545.5 6,041,605.92 458,302.06 0.00 15,624.00 Total Depth: 18202.8' MD, 6216.2' TVD 18,202.8 95.01 321.24 6,216.2 6,160.0 10,526.7-11,545.6 6,041,606.00 458,302.00 0.00 15,624.10 4 1/2" 11412013 9:21:58AM Page 10 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 rgets Target Name hit/miss target Dip Angle Dip Dir. TVD +N/S +E/-W Northing Easting - Shape V) V) (usft) (usft) (usft) (usft) (usft) K20 37ext V1 toe 0.00 0.00 6,406.2 8,970.9 -7,757.9 6,040,035.00 462,083.00 plan misses target center by 1948.5usft at 14507.4usft MD (6266.6 TVD, 7674.1 N,-9205.4 E) Point K20 34ext V2 toe 0.00 0.00 6,305.2 10,546.3 -11,525.4 6,041,625.49 458,322.23 plan misses target center by 93.2usft at 18197.7usft MD (6216.6 TVD, 10522.7 N,-11542.4 E) Point N20 V1 T4 (Invert #2) 0.00 0.00 6,290.2 9,660.5 -10,850.0 6,040,737.00 458,994.00 plan misses target center by 16.Ousft at 17087.8usft MD (6306.2 TVD, 9660.3 N,-10849.8 E) Point N20 V1 T5 (TD) 0.00 0.00 6,216.2 10,526.4 -11,545.3 6,041,605.70 458,302.30 plan misses target center by 0.1 usft at 18202.4usft MD (6216.2 TVD, 10526.4 N,-11545.3 E) Point K20 32ext V1 heel 0.00 0.00 6,236.2 6,521.9 -3,528.5 6,037,569.00 466,302.00 plan misses target center by 3318.6usft at 9405.3usft MD (5347.8 TVD, 4237.4 N,-5765.7 E) Point K20 34ext V3 heel 0.00 0.00 6,324.2 5,692.4 -7,963.5 6,036,657.66 461,863.67 plan misses target center by 408.5usft at 12112.4usft MD (6294.5 TVD, 5856.0 N,-7652.8 E) Point N20 v2 t3 g.00 359.70 6,266.2 7,713.9 -9,213.9 6,038,784.00 460,622.00 plan misses target center by 20.2usft at 14542.6usft MD (6266.2 TVD, 7700.4 N,-9228.9 E) Point N20 v2 t3.5 0.00 359.70 9,261.2 8,185.1 -9,665.9 6,039,257.00 460,172.00 plan hits target center Point K20 34ext V1 heel 0.00 0.00 6,386.2 8,104.7 -9,507.5 6,039,176.00 460,330.00 plan misses target centen by 141.5usft at 15029.5usft MD (6261.7 TVD, 8059.7 N,-9557.4 E) Point K20 34ext V3 toe 0.00 0.00 6,320.2 10,250.4 -11,808.8 6,041,330.73 458,037.64 plan misses target center by 391.1 usft at 18143.3usft MD (6221.4 TVD, 10480.5 N,-11508.4 E) Point K20 34ext V1 toe 0.00 0.00 6,306.2 5,464.3 -7,326.6 6,036,527.00 462,500.00 plan misses target center by 55.Ousft at 11606.6usft MD (6251.6 TVD, 5470.5 N,-7328.3 E) - Point 1 Nd20 v2 M 0.00 359.69 6,266.2 8,880.9 -10,230.8 6,039,955.00 459,610.00 - plan hits target center - Point K20 36ext V1 toe 0.00 0.00 6,386.2 6,211.8-11,180.0 6,037,290.00 458,650.00 plan misses target center by 2447.3usft at 14762.7usft MD (6264.1 TVD, 7862.7 N,-9377.5 E) Point K20 31ext V1 toe 0.00 0.00 6,296.2 12,574.1 -5,344.2 6,043,628.00 464,511.00 plan misses target center by 6122.8usft at 15881.1 usft MD (6261.5 TVD, 8716.8 N,-10099.0 E) Point N20 v2 t5 0.00 359.68 6,306.2 9,660.5-10,850.0 6,040,737.00 458,994.00 plan hits target center Point N20 v2 tl 0.00 359.71 6,341.2 5,746.4 -7,560.7 6,036,810.00 462,267.00 plan misses target center by 56.8usft at 11973.4usft MD (6284.6 TVD, 5749.8 N,-7563.6 E) Point K20 34ext V2 heel 0.00 0.00 6,331.2 5,889.5 -7,679.0 6,036,953.53 462,149.32 - plan misses target center by 33.7usft at 12157.3usft MD (6297.6 TVD, 5890.3 N,-7681.6 E) 11412013 9:21:58AM Page 11 COMPASS 5000.1 Build 61 HALLIBURTON Pioneer Natural Resources Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk ND Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 - Point N20 v2 t6 0.00 359.68 6,216.2 10,526.7 -11,545.6 plan hits target center Point N20 V1 T3 (Revert #1) 0.00 0.00 6,266.2 7,713.9 -9,213.9 plan misses target center by 20.2usft at 14542.6usft MD (6266.2 TVD, 7700.4 N,-9228.9 E) Point K20 37ext V1 heel 0.00 0.00 6,266.2 5,766.5 -5,327.6 plan misses target center by 1596.Ousft at 10314.2usft MD (5768.1 TVD, 4711.9 N,-6417.1 E) Point K20 36ext V1 heel 0.00 0.00 6,306.2 3,533.1 -8,323.8 plan misses target center by 2092.9usft at 11144.5usft MD (6140.5 TVD, 515!.1 N,-7011.6 E) Point N20 v2 t2 0.00 359.70 6,341.2 6,420.2 -8,126.5 plan hits target center Point K20 32ext V1 toe 0.00 0AA 6,296.2 10,052.9 -6,081.1 plan misses target center by 3916.9usft at 14227.8usft MD (6270.8 TVD, 7464.3 N,-9020.6 E) Point N20 V1 T1 (ICP2) 0.01 0.00 6,284.2 5,746.4 -7,560.7 plan hits target center Point N20 V1 T2 (Invert#1) 0.00 0.00 6,341.2 6,420.2 -8,126.5 plan hits target center Point Casing Points 6,041,606.00 458,302.00 6,038,784.00 460,622.00 6,036,821.00 464,500.00 6,034,600.00 461,495.00 6,037,486.00 461,704.00 6,041,110.00 463,764.00 6,036,810.00 462,267.00 6,037,486.00 461,704.00 Measured Vertical Casing Hole Depth Depth Diameter Diameter (usft) (usft) Name (") (") 4,801.6 3,219.0 11 3/4" 11-3/4 14-1 /2 9,597.5 5,436.7 9 5/8" 9-5/8 11-3/4 11,968.0 6,284.1 7" 7 8-1/2 18,202.8 6,216.2 41/2" 4-1/2 6-1/8 11412013 9:21:58AM Page 12 COMPASS 5000.1 Build 61 Pioneer Natural Resources HALLIBURTON Standard Proposal Report Database: EDMAKPRD Local Co-ordinate Reference: Well ODSN-20 Company: Well Planning - Pioneer - Oooguruk TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Project: Oooguruk Development MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site: Oooguruk Drill Site North Reference: True Well: ODSN-20 Survey Calculation Method: Minimum Curvature Wellbore: ODSN-20 KE4 Design: ODSN-20 KE4 wp08 Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction (usft) (usft) Name Lithology (°) (°) 11,253.8 6,176.6 Top Kuparuk C 9,160.4 5,234.6 Base Torok Sand 11,721.2 6,262.6 BCU (Top Kingak Sh) 4,123.0 2,905.2 Cret tuffs 11,334.4 6,199.4 LCU (Top Miluveach Sh) 10,848.5 6,015.2 Base HRZ (Top Kalubik Sh) 4,781.4 3,209.6 Hue 2 shale 1,844.2 1,713.0 Ugnu D 11,893.3 6,277.6 Top Nuiqsut 8,673.0 5,009.2 Top Torok Sand 861.1 853.0 Top of Permafrost 2,764.7 2,277.1 Top West Sak 9,586.7 5,431.7 Tor01d 1 Shale 11,924.3 6,280.3 Nuigsut 1 1,785.7 1,668.0 Base of Permafrost 7,119.4 4,290.8 Brookian 2B 11,054.5 6,106.4 Kalubik Marker 10,561.5 5,882.5 Top HRZ Plan Annotations Measured Vertical Local Coordinates Depth Deptb +N/-S +E/-W (usft) (usft) (usft) (usft) Cournent 225.0 225.0 0.0 0.0 Start Dir 2.50/100': 225' MD, 225'TVD: 310° RT TF 2,725.7 2,259.0 750.3 -978.5 End Dir: 2725.7' MD, 2259' TVD 10,921.9 6,049.1 5,029.1 -6,852.6 Start Dir 3.5'/100': 10921.9' MD, 6049.2'TVD 11,668.9 6,258.0 5,517.5 -7,368.6 End Dir: 11668.9' MD, 6258' TVD 11,968.9 6,284.2 5,746.4 -7,560.7 Start Dir 30/100': 11968.9' MD, 6284.21TVD 12,002.6 6,286.8 5,772.1 -7,582.4 End Dir: 12002.6' MD, 6286.8' TVD 12,717.7 6,336.6 6,318.5 -8,041.1 Start Dir 3*/100': 12717.7' MD, 6336.6'TVD 13,009.0 6,334.6 6,541.3 -8,228.3 End Dir: 13009' MD, 6334.6' TVD 13,473.2 6,296.2 6,895.4 -8,525.9 Start Dir 10/100': 13473.2' MD, 6296.2'TVD 13,882.5 6,276.1 7,205.2 -8,792.5 End Dir: 13882.5' MD, 6276.1' TVD 14,472.4 6,267.1 7,647.9 -9,182.3 Start Dir 10/100': 14472.4' MD, 6267.1'TVD 14,542.6 6,266.2 7,700.3 -9,228.9 Start Dir 1.520/100': 14542.6' MD, 6266.2'TVD 14,574.5 6,265.9 7,724.0 -9,250.4 End Dir: 14574.5' MD, 6265.9' TVD 14,953.5 6,262.3 8,003.3 -9,506.5 Start Dir 1.050/100': 14953.5' MD, 6262.3'TVD 15,195.3 6,261.2 8,185.1 -9,665.9 Start Dir 10/100': 15195.3' MD, 6261.2'TVD 15,283.9 6,261.2 8,253.4 -9,722.3 End Dir: 15283.9' MD, 6261.2' TVD 15,854.1 6,261.4 8,695.8 -10,082.0 Start Dir 10/100': 15854.1' MD, 6261.4'TVD 16,107.1 6,266.8 8,893.0 -10,240.4 End Dir: 16107.1' MD, 6266.8' TVD 16,964.2 6,303.5 9,563.7 -10,772.8 Start Dir 20/100': 16964.2' MD, 6303.5'TVD 17,088.0 6,306.2 9,660.5 -10,850.0 Start Dir 30/100': 17088' MD, 6306.2'TVD 17,254.9 6,298.9 9,790.4 -10,954.4 End Dir: 17254.9' MD, 6298.9' TVD 18,202.7 6,216.2 10,526.6 -11,545.5 Total Depth: 18202.8' MD, 6216.2' TVD 1/4/2013 9:21:58AM Page 13 COMPASS 5000.1 Build 61 Well Planning - Pioneer - Oooguruk Oooguruk Development Oooguruk Drill Site ODSN-20 ODSN-20 KE4 ODSN-20 KE4 wp08 Anticollision Summary Report 04 January, 2013 ............... .... . ........... 4lb _ -4 AXI - ,, ,►, fir• ♦ ar ♦ - .qt • low �11' .iglus` ♦ a I N ��� �Ph♦ ♦ k �1 ♦ 1 w�► ;T - e A - - - - - - - - - - - - - - - - - - - _ _ _ • g4gw—�ll .vim ���..•,. . P',I��'lii! lai r�lh4001n,tITIosh�• �� iq/�1�r:iAll • - u ♦�ri�L�f►• Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Reference Site: Oooguruk Drill Site Site Error: O.Ousft Reference Well: ODSN-20 Well Error: O.ousft Reference Wellbore ODSN-20 KE4 Reference Design: ODSN-20 KE4 wp08 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset TVD Reference: Well ODSN-20 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 42.7' + 13.5' @ 56.2usft (Nabors 19AC) True Minimum Curvature 2.00 sigma EDMAKPRD Offset Datum Reference ODSN-20 KE4 wp08 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refere Interpolation Method: MD Interval 25.0usft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray. Cylinder North Results Limited by: Maximum center -center distance of 2,016.0usft Error Surface: Elliptical Conic Survey Tool Program Date 1/4/2013 From To (usft) (usft) Survey (Wellbore) Tool (Name Description 42.7 750.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) 3RG-SS Surface readout gyro single shot 750.0 4,801.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 4,801.0 9,597.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 9,597.0 11,968.0 ODSN-20 KE4 wp08 (ODSN-20 KE4) MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 11,968.0 18,202.8 ODSN-20 KE4 wp08 (ODSN-20 IFE41 MWD+IFR2+MS+sag Fixed:v2:IIFR dec & 3-axis correction + sag 11412013 11:11.07AM Page 2 of 5 COMPASS 5000.1 Build 61 Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Local Co-ordinate Reference: Well ODSN-20 Project: Oooguruk Development ND Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site Error: O.Ousft North Reference: True Reference Well: ODSN-20 Survey Calculation Method: Minimum Curvature Well Error: 0.0usft Output errors are at 2.00 sigma Reference Wellbore ODSN-20 KE4 Database: EDMAKPRD Reference Design: ODSN-20 KE4 wp08 Offset ND Reference: Offset Datum Summary Reference Offset Centre to No-tiEo Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) Oooguruk Drill Site ODSDWI-44 - ODSDW1-44 Disposal - ODSDWI 299.0 300.0 32.5 5.92 26.6 Pass - Yajor Risk ODSDW2-19 - ODSDW2-19 Disposal - ODSDW2 250.0 250.0 8.0 5.61 2.4 Pass - Major Risk ODSK-13 - ODSK-13 - ODSK-13 473.6 475.0 60.8 10.86 49.9 Pass - Major Risk ODSK-13 - ODSK-13PB1 - ODSK-13P61 473.6 475.0 60.8 10.86 49.9 Pass - Major Risk ODSK-13 - ODSK-13PB2 - ODSK-13PB2 473.6 475.0 60.8 10.86 49.9 Pass - Major Risk ODSK-14 - ODSK-14 - ODSK-14 KupB 524.0 525.0 54.4 12.31 42.1 Pass - Major Risk ODSK-14 - ODSK-14 PB1 - ODSK-14 P61 KupB 524.0 525.0 54.4 12.31 42.1 Pass - Major Risk ODSK-14 - ODSK-14 P132 - ODSK-14 PB2 KupB 524.0 525.0 54.4 12.31 42.1 Pass - Major Risk ODSK-33 - ODSK-33 KupA - ODSK-33 KupA 346.5 350.0 104.7 7.86 96.8 Pass - Major Risk ODSK-33 - ODSK-33 PB1 KupA - ODSK-33 PB1 1, 346.5 350.0 104.7 7.86 96.8 Pass - Major Risk ODSK-35Ai - ODSK-35 KupB - ODSK-35 KupB SL 323.2 325.0 92.0 7.26 84.7 Pass - Major Risk ODSK-35Ai - ODSK-35Ai - ODSK-35Ai KupH Sury 323.2 325.0 92.0 7.26 84.7 Pass - Major Risk ODSK-38i - ODSK-38i KupD - ODSK-38i KupD SL 346.6 350.0 62.3 7.89 54.4 Pass - Major Risk ODSK-41 - ODSK-41 KupF - ODSK-41 KupF Sum 322.2 325.0 44.8 7.30 37.5 Pass - Major Risk ODSK-41 - ODSK-41 PB1 KupF - ODSK-41 PB1 F 322.r 325.0 44.8 7.39 37.4 Pass - Major Risk ODSK-42i - ODSK-42Ai - ODSK-42Ai 323.5 325.0 40.7 7.48 33.3 Pass - Major Risk ODSK-42i - ODSK-42i KupG - ODSK-42i KupG 323.5 325.0 40.7 7.48 33.3 Pass - Major Risk ODSK-7i - ODSN-7i Ivik Kup - ODSN-7i Ivik Wiip uk 374.2 375.0 114.0 8.38 105.6 Pass - Major Risk ODSN-1 - ODSN-1 KE3 - ODSN-1 KE3 991.2 1,000.0 167.4 22.39 145.1 Pass - Major Risk ODSN-1 - ODSN-1 KE3 P131 - ODSN-1 KE3 PB1 991.2 1,000.0 167.4 22.39 145.1 Pass - Major Risk ODSN-10 - ODSN-10 PS12 - OD3N-10 PSI wp1 473.2 475.0 94.0 11.05 83.0 Pass - Major Risk ODSN-11i - ODSN-11i IS11 - ODSN-11i IS11 wp1 1,503.9 1,500.0 59.3 38.23 21.4 Pass - Major Risk ODSN-12 - ODSN-12 PS10 - ODSN-12 PS10 wp1 473.4 475.0 80.2 11.06 69.1 Pass - Major Risk ODSN-15i - ODSN-15i - ODSN-151 IN12 748.4 7Y0.0 42.2 18.28 24.1 Pass - Major Risk ODSN-16 - ODSN-16 - ODSN-16 PN13 Surveys 795.8 800.0 42.0 19.14 23.5 Pass - Major Risk ODSN-16 - ODSN-161-1 - ODSN-16L1 PN13 795.8 800.0 42.0 19.14 23.5 Pass - Major Risk ODSN-17 - ODSN-17 - ODSN-17 PN13 Mid Surve 349.8 350.0 34.9 8.01 26.9 Pass - Major Risk ODSN-17 - OD3N-17 L1 - ODSN-17 L1 PN13 349.8 350.0 34.9 8.01 26.9 Pass - Major Risk ODSN-18 - ODSN-18 - ODSN-18 RN11 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB5 - ODSN-18 PN11 PB5 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB1 - ODSN-18 PN11 PB1 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB2 - ODSN-18 PN11 P132 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk 012SN-18 - ODSN-18 P132 - ODSN-181PB2 523.9 525.0 26.8 11.01 15.9 Pass - Major Risk ODSN-18 - ODSN-18 PB3 - ODSN-18 PN11 PB3 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-18 - ODSN-18 PB4 - ODSN-18 PN11 PB4 523.9 525.0 26.8 12.15 14.7 Pass - Major Risk ODSN-2 - ODSN-2 PN3 ext - ODSN-2 PN3 ext wp 324.1 325.0 160.1 7.33 152.7 Pass - Major Risk ODSN-21 - ODSN-21 PSI - ODSN-21 PSI wpO 225.0 225.0 7.6 5.04 2.6 Pass - Major Risk OIESN-22i - ODSN-22i IS14 - ODSN-22i IS14 wpO 349.9 350.0 14.5 8.00 6.5 Pass - Major Risk ODSN-23i - ODSN-23i - ODSN-231 IN14 150.0 150.0 21.7 3.28 18.5 Pass - Major Risk ODSN-23i - ODSN-23i PB1 - ODSN-23i IN14 PB1 150.0 150.0 21.7 3.28 18.5 Pass - Major Risk ODSN-23i - ODSN-23i P132 - ODSN-23i IN14 PB2 150.0 150.0 21.7 3.28 18.5 Pass - Major Risk ODSN-24 - ODSN-24 KE5 - ODSN-24 KE5 175.0 175.0 28.5 3.81 24.7 Pass - Major Risk ODSN-24 - OD3N-24 KE5 - ODSN-24 KE5 wp11 250.0 250.0 28.9 5.58 23.3 Pass - Major Risk ODSN-24 - ODSN-24 PB1 - ODSN-24 P61 175.0 175.0 28.5 3.81 24.7 Pass - Major Risk ODSN-25 - ODSN-29 - ODSN-25 KE1 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 PB1 - ODSN-25 P131 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 P132 - ODSN-25 KE1 PB2 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 PB3 - ODSN-25 KE1 P133 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-25 - ODSN-25 PB4 - ODSN-25 KE1 PB4 225.0 225.0 169.9 4.97 164.9 Pass - Major Risk ODSN-26i - ODSN-26 KE2 P132 - ODSN-26 KE2 P 298.4 300.0 163.6 6.80 156.8 Pass - Major Risk ODSN-26i - ODSN-26i KE2 - ODSN-26i KE2 298.4 300.0 163.6 6.80 156.8 Pass - Major Risk ODSN-26i - ODSN-26i KE2 P131 - ODSN-26i KE2 298.4 300.0 163.6 6.80 156.8 Pass - Major Risk ODSN-27i - ODSN-27i IN4 - ODSN-27i IN4 396.2 400.0 155.8 9.14 146.6 Pass - Major Risk 1/4/2013 11:11:07AM Page 3 of 5 COMPASS 5000.1 Build 61 Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Local Co-ordinate Reference: Well ODSN-20 Project: Oooguruk Development TVD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Reference Site: Oooguruk Drill Site MD Reference: 42.7' + 13.5' @ 56.2usft (Nabors 19AC) Site Error: 0.0usft North Reference: True Reference Well: ODSN-20 Survey Calculation Method: Minimum Curvature Well Error: Uusft Output errors are at 2.00 sigma Reference Wellbore ODSN-20 KE4 Database: EDMAKPRD Reference Design: ODSN-20 KE4 wp08 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Qo Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) Oooguruk Drill Site ODSN-28 - ODSN-28 PN3 - ODSN-28 PN3 wp09 323.0 325.0 149.4 7.36 142.1 Pass - Major Risk ODSN-29 - ODSN-29 PN5 - ODSN-29 PN5 347.1 350.0 143.2 7.86 135.4 Pass - Major Risk ODSN-29 - ODSN-29 PN5 PB1 - ODSN-29 PN5 F 347.1 350.0 143.2 7.A6 135.4 Pass - Major Risk ODSN-29 - ODSN-29 PN5 PB2 - ODSN-29 PN5 F 347.1 350.0 143.2 7.86 135.4 Pass - Major Risk ODSN-30 - ODSN-30 PS5 - ODSN-30 PS5 wp02 420.9 425.0 137.3 9.48 127.8 Pass - Major Risk ODSN-31 - ODSN-31 - ODSN-31 PN6 Surveys 347.7 350.0 118.6 8.05 110.5 Pass - Major Risk ODSN-31 - ODSN-31 PB1 - ODSN-31 PB1 PN6 St 347.7 350.0 118.6 8.05 110.5 Pass - Major Risk ODSN-32i - ODSN-32i IN7 - ODSN-32i IN7 Surve, 372.1 375.0 112.2 8.61 103.6 Pass - Major Risk ODSN-32i - ODSN-32iPB1 IN7 - ODSN-32iPB1 IN 372.1 375.0 112.2 8.61 103.6 Pass - Major Risk ODSN-34i - ODSN-34 IN9 - ODSN-34i IN9 Survey 347.R 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-34i - ODSN-34i PB2 - ODSN-34iPB2 IN9 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-34i - ODSN-34i PB3 - ODSN-34iPB3 IN9 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-34i - ODSN-34iPB1 - ODSN-34iPB1 IN9 347.8 350.0 97.6 7.92 89.7 Pass - Major Risk ODSN-36 - ODSN-36 L1 - ODSN-36 L1 wp05 298.7 300.0 85.5 6.55 78.9 Pass - Major Risk ODSN-36 - ODSN-36 PB1 - ODSN-36 P131 PN10 298.1i 300.0 85.5 6.64 78.9 Pass - Major Risk ODSN-36 - ODSN-36 PB2 - ODSN-36 PB2 PN10 298.7 300.0 85.5 6.64 78.9 Pass - Major Risk ODSN-36 - ODSN-36 PN10 - ODSN-36 PN10 Sur 298.7 300.0 85.5 6.64 78.9 Pass - Major Risk ODSN-37 - ODSN-37 - ODSN-37 PN8 347.9 350.0 68.8 8.08 60.7 Pass - Major Risk ODSN-37 - ODSN-37 L1 - ODSN-37 L1 wp01 347.9 350.0 68.8 7.99 60.8 Pass - Major Risk ODSN-3i - ODSN-3i IN4 ext - ODSN-3i IN4 wp07 324.5 325.0 153.7 7.45 146.3 Pass - Major Risk ODSN-4 - ODSN-4 PN5 ext - ODSN-4 PN5 ext wp 1,125.8 1,125.0 128.8 29.84 99.7 Pass - Major Risk ODSN-40 - ODSN-40 PN12 - ODSN-40 PN12 Sur 297.5 300.0 50.6 6.76 43.9 Pass - Major Risk ODSN-40 - ODSN-40PB1 PN12 - ODSN-40PB1 P 297.5 00.0 50.6 6.76 43.9 Pass - Major Risk ODSN-40 - ODSN-40PB2 PN12 - ODSN-40PB2 P 297.5 U0.0 50.6 6.76 43.9 Pass - Major Risk ODSN-43 - ODSN-43 RS15 (current) - ODSN-43 F 274.3 275.0 34.1 6.19 27.9 Pass - Major Risk ODSN-48 - ODSN-48i IS16 - ODSN-48i IS16 wp0: 249.7 250.0 43.6 5.61 38.0 Pass - Major Risk ODSN-5i - ODSN-5i IS3 - ODSN-5i IS3 wp09 374.1 375.0 139.5 8.64 130.9 Pass - Major Risk ODSN-6 - ODSN-6 PS4 - ODSN-6 PS4 wp01 497.1 500.0 132.8 11.15 121.7 Pass - Major Risk ODSN-8 - ODSN-8 PS8 - ODSN-8 PS8 wp08 - 8K 473.1 475.0 107.9 10.97 96.9 Pass - Major Risk ODSN-9i - ODSN-9i IS9 - ODSN-91 wp12-8k horz 646.8 650.0 103.8 15.43 88.4 Pass - Major Risk ODST-39 - ODSN-39i IN11 - ODSN-39i IN11 298.8 300.0 56.6 6.80 49.8 Pass - Major Risk ODSI-39 - ODST-39 Torok D - ODST-39 Torok D 298.8 300.0 56.6 6.80 49.8 Pass - Major Risk OIEST-39 - ODST-39 Torok D PB1 - ODST-39 Tor 298.8 300.0 56.6 6.80 49.8 Pass - Major Risk ODST-45 - ODSN-45i PB1 IN13 - ODSN-45i PB1 249.6 250.0 34.8 5.81 29.0 Pass - Major Risk ODST-45 - ODST-45A - ODST-45A Surveys 249.6 250.0 34.8 5.81 29.0 Pass - Major Risk ODST-46i - ODST-46i - ODST-46i Torok C 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODST-46i - ODST-46i PB1 - ODST-46i Torok C P 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk OIEST-46i - ODST-46i PB2 - ODST-46i Torok C P 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODSIf-46i - ODST-46i Torok C PB3 - ODST-46i P 150.0 150.0 36.1 3.23 32.9 Pass - Major Risk ODST-47 - ODST-47 - ODST-47 274.3 275.0 38.9 6.13 32.7 Pass - Major Risk 11412013 11.11.07AM Page 4 of 5 COMPASS 5000.1 Build 61 Pioneer Natural Resources Anticollision Report Company: Well Planning - Pioneer - Oooguruk Project: Oooguruk Development Reference Site: Oooguruk Drill Site Site Error: 0.0usft Reference Well: ODSN-20 Well Error: 0.0usft Reference Wellbore ODSN-20 KE4 Reference Design: ODSN-20 KE4 wpO8 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset TVD Reference: Well ODSN-20 42.7' + 13.5' @ 56.2usft (Nabors 19AC) 42.7' + 13.5' @ 56.2usft (Nabors 19AC) True Minimum Curvature 2.00 sigma EDMAKPRD Offset Datum Reference Depths are relative to 42.7' + 13.5' @ 56.2usft (Nabors Coordinates are relative to: ODSN-20 Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927 (Exact solution), Alaska Zone 04 Central Meridian is 150' 0' 0.000 W ° Grid Convergence at Surface is: -0.23' EEO C w 1500- 0 0 0 la IZ cn 1000- c m U 0 lsposal, ODSE 3 VO ;K-13PB1 VO Ladder Plot Y14, �. 1 � 1►IVY .� e�. 7, L� r IIt I�1 �� � F' �pii�y �Il� �/ V► ', �. � ♦' � ♦ � a �� �� / .� Il,ri�r��� � � ��i► y��� J . II A •! • 7s s, 1! Ait.,� r t�iiu p •DS11 1 — i- 4 KupB V00 _ 5K-14 PB1 Ku VO 3K-14 PB2 KupB VO )SK-33 KupA VO , ODSK35 KupB Surveys VO ISK35Ai KupHSurroeysVO ODSK38i KupDSurveysVO IDSK-41 KupFSurveysVO :)F,ODSK41 PB1 KupFVO ;K-42Ai VO ODSK-42i KupG VO :)DSN-7ilvikKupwp01 VO tN•1 KE3 VO 3000 -X- ODS"tJ� RSN-23i3ODSN-§6"4V0 V�12000 ODSN 23i, ODSI`dJ.L fA i DS 2b&dsTVn) �F ODSN-23i3ODSN-23i PB2,O3i 114 PB2 VO -F ODSN-24, ODSN-24 KE5, ODSN-24 KE5 wp11 VO - ' ODSN-24,ODSN-24PB1,ODSN•24PB1 VO �® ODSN-25,ODSN-25,ODSN-25KE1 VO ODSN-25,ODSN-25PB1,ODSN-25PB1 VO $ ODSN-25, ODSN-25 P132, ODSN•25 KE1 P132 VO ODSN-25,ODSN-25 PB3, ODSN-25 KE1 PB3 VO $ ODSN-25, ODSN-25 PB4, ODSN-25 KE1 P134 VO ODSN-26i, ODSN-26 KE2 PB2, ODSN-26 KE2 PB2 VO $ ODSN-26i, ODSN-26i KE2, ODSN-26i KE2 VO 5�N 37,ODSN 317�N 37 ODSN37,ODSN37L1,ODSN- ODSN-3i, ODSN-3i IN4 e4 OD: $ ODSN40,ODSN40PN12,ODSI $ ODSN40,ODSN-40P131 PN12,C -IMF ODSN-40,ODSN-40PB2PN12,0 ODSN-43,ODSN-43 PS15 (currei $ ODSN48,ODSN-48ilS16,ODSh ODSN5i3ODSNSilS3,ODSN5i $ ODSN-6, ODSN-6 PS4, ODSN-6 f -&- ODSN-8,ODSN-8PS8,ODSN-8 $ ODSN3i3ODSN-9iIS9,ODSN-91 1142013 11:11:07AM Page 5 of 5 COMPASS 5000.1 Build 61 0 Z O O D W Z Z •• m ?R O �•� y` o e �O o /9 0 0 Rj o Rb, o RS. o RR o 40 �i ffi CD co O' CFJI 8a P" m yn o a �!j O O r- 0 0 0 0 7 Q 1, If it `l w 1 1 Lundry •VzArict1 1 N�OOOGURUK E SITE S orner o i Protracted Section" 11 Coordinates I i i N 6028111.04 c E 4 1 P+_25 ' E m! u Ref. AK BLM , Harrison Bay Tract 'AA.. N P+-24\ — ,41 \�� Record prawina-__ tiR �\�� � �u (( 9• 22 't"N 91 n /q1v'° 12� Otto" 20 oodn59 WSW �� �� Near Sh—'mood'=38�"' AIAe a PI 7 ic PI 20 Pi 141 PI-16 f r _ DS 3N B.O.P. N� - phf7 Tundra Icame n �. " ♦ �- g Rovda to .Colo + y Pi- IIWIO�S.i-. GxI p I 19 BU s _. J H X+ •_ R4 -STAKED PI INFORMATION ONLY e OF At _►, `Basis of Location DS-3H West Monument Coordinates N 6001016.61 E 498081.23 Ref. Lownsbury & Assoc. Drawing No. NSK 6.01-d672 Pioneer Natural Resouces JOB NAME: Oooguruk Drill Site Conductors DRAWN BY: BL CHECKED BY: MJD LOCATION: Protracted Section 11 SCALE: N/A Township 13 North Range 7 East DATE: 7-12-07 Umiat Meridian NANUQ JOB NO. SHEET DESCRIPTION: Basis of Location 05204 2 of 4 Well No, - as a State Tangy -- Latitude (np -Secfion Line =__ --.:. - Pad Elay. ---- Longitude (W) __Y.= _ . _ X --- 1 2 3 6, 031,151 32 _ _ 6, 431,146, 35 6, Q31,141,30 469, 920, 45 469, 915.52 469, 01 Q 59 469;905,67 469, 900,74 469, 895, 8Q 4.69,$83.13 469, 878, 21 469,873,2�i 469, 868 36 469, 863 39 469, 85$.47 469, 845 81 469,840 $7 _ 469,$35,99 469, 831.04 826.11 _ _ 469, $21,18 - - ----- 469, 808,50 469, 8-0 59 460,703,67 46-9, 7$$, 76 $4 _ -- - - 70 29 46, 24160 70 20 46 19252 70 29 4fi,14354_ 7Q 29 46.09485 7Q 29 46, 0453$ -- 7Q 29 45 99660 70 29 45,$7-ow 9 70 29 45, $2102 70 29 45.71184_ 17 70 29 45, 72286 _ 70 29 45,67398 74 29 45' 02400 7Q 29 45.49$ .0 70 s 45 44932- 70 29 45.40053 7Q 29 45- 35145 _ 70 29 45,30277 70 29 45,25350 -- --- 70 29 45 1276$ 74 29 45 00-7811 70 29 45 02903 70 29 44 9$014 70 29 A4 03067 70 294:88150 _. -. -- -_- --- 150 14.4, 5.4646$ 15Q 14 45: 60922 150 14 45, 75375 15014 48.89799 150 14 46,04252 - - -6 -- 15Q 14 46,18735 150 14-4V$$87?-1 150 14 46, 70303 3435 1077 13, 54 _ 3030 3025 3020 3g15 --- - 3010 2997 2992 10a7 1002 - 1097 1102 1115 1120 13,50 13:50 13, 50 13.50 13;5Q 13, 50 5 6,431,136,46 -. 6, 031,131.45 €�, 031,126, 51 6,031,113,73 6, 431,148.73 6, 031,103, 75 _ 8, 031, 09$ 79 6, Q31, 093 84 6, 031, 08$, 87 6, Q31, 076, 06 6,431,071,09 - s,031,0661 6, 031, 061 1$ 6, 031,056 25 ---469, _ 6, 031,051.27 - -- ---- --- 6, 031, 033, 54 6,031,023,5$ -6, 031,001$.57 6, 031, 013,6Q469,7$3, 6 7 9 1 Q - 11 12 13 -- 14 15Q 14 46, $4814 _ 1$014 46, 99179 150 1447,13750 1501 47 2$174 150 14 47 652$$ 150 i4 47.70770 150 14 4--9a165 15014 4$.0$5$8 '150 14 48,23042 150 14 48,37495 - - - -- 150 14 4$, 7466$ 29$7 - 29$2 2977 2972 2900 2995 2957 2945 294Q 1125 -- _ 1139 _ 113 1140 1152 _ 1157 11-02 1167 - - - 1172 13, 50 _ 13, 50 13,50 13, 50 1$,54 1 t50 - 13,8Q- 13,50 13,50 - -15 17 - -18 196,031,038,52- 20 2179$.62 22 23 --4 - 2935 1177 13:50 ------ 2922 11$9 _13, 50 13;5Q 13, 50 150 1448.. 89061 _ _ _ - 150 14 49, 030$2 15014 4 ,' l -.1-44 15014 �0, 32537 10 14 49.6960 - _._ 2917 2.12 2907 29Q2 _ 1194 1199 1204 1209 2897 1214 13 ,50 Notes, 1, Elevations are based on $P Mean Sea Level. 2, Coordinates are teased on Alaska State Plane Nad 27. Zone 4, 3, Alt conductors ore within Protracted Section 11. P- ion eer Notur-al Resouces JOB NAME- Ooogur-uk Drill LOCATION; Protracted Township Range Umiat Site CCmduotors section 11 13 North 7 East Meridian�!�fiE= DRAWN BY; 6 C-**MJp ; SCALE., N/A 7e92�07 NANUQ JOB NQ, SHEET -- -- DESCRfP-fiIQN; As -built Cocrdi.nctes - 05204 3 0€ 4 Well No. Alaska State Plane Latitude (N) Longitude (W) Section Line Offset Pad Elev. Y X FSL FEL 25 6, 031,128.32 469, 943.64 70 29 46.01630 150 14 44.77930 3013 1055 13.50 26 6,031,123.35 469, 938.69 70 29 45.96722 150 14 44.92442 3008 1060 13.50 27 6,031,118.33 469, 933.76 70 29 45.91765 150 14 45.06895 3003 1065 13.50 28 6,031,113.39 469, 928.86 70 29 45.86887 150 14 45.21260 2997 1070 13.50 29 6,031,108.44 469, 923.95 70 29 45.81999 150 14 45.35655 2992 1075 13.50 30 6,031,103.45 469, 919.01 70 29 45.77071 150 14 45.50137 2988 1079 13.50 31 6, 031, 090.65 469, 906.38 70 29 45.64431 150 14 45.87163 2975 1092 13.50 32 6, 031, 085.68 469, 901.39 70 29 45.59523 150 14 46.01793 2970 1097 13.50 33 6, 031, 080.67 469, 896.50 70 29 45.54576 150 14 46.16128 2965 1102 13.50 34 6,031,075.73 469,891.57 70 29 45.49698 150 14 46.30581 2960 1106 13.50 35 6, 031, 070.76 469, 886.60 70 29 45.44789 150 14 46.45152 2955 1111 13.50 36 6,031,065.83 469,881.69 70 29 45.39921 150 14 46.59547 2950 1116 13.50 37 6, 031, 053.00 469, 869.00 70 29 45.27251 150 14 46.96749 2937 1129 13.50 38 6, 031, 047.99 469, 864.14 70 29 45.22304 150 14 47.10995 2932 1134 13.50 39 6,031,043.03 469,859.20 70 29 45.17406 150 14 47.25478 2927 1139 13.50 40 6,031,038.10 469,854.21 70 29 45.12537 150 14 47.40108 2922 1144 13.50 41 6, 031, 033.05 469, 849.29 70 29 45.07551 150 14 47.54530 2917 1149 13.50 42 6, 031, 028.13 469, 844.38 70 29 45.02692 150 14 47.68925 2912 1154 13.50 43 6, 031, 015.46 469, 831.70 70 29 44.90180 150 14 48.06099 2899 1166 13.50 44 6,031,010.49 469,826.79 70 29 44.85272 150 14 48.20493 2894 1171 13.50 45 6, 031, 005.53 469, 821.86 70 29 44.80373 150 14 48.34946 2889 1176 13.50 46 6,031,000.54 469,816.94 70 29 44.75446 150 14 48.49369 2884 1181 13.50 47 61030,995.50 469,811.98 1 70 29 44.70469 150 14 48.63910 2879 1186 1 13.50 48 6,030,990.58 469,807.07 1 70 29 44.65610 150 14 48.78304 1 2874 1191 1 13.50 +®� OF At %%8 B SURVEYOR'S CERTIFICATE I HEREBY CERTIFY THAT I AM PROPERLY REGISTERED AND LICENSED TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA AND THAT THIS PLAT REPRESENTS A SURVEY DONE BY ME OR UNDER MY SUPERVISION AND THAT I BELIEVE THAT ALL DIMENSIONS AND OTHER DETAILS ARE CORRECT AS SUBMITTED TO ME BY NANUQ, INC. AS OF JULY 12TH, 2007. Pioneer Natural Resouces JOB NAME: Oooguruk Drill Site Conductors DRAWN BY: BL ICHECKED BY: MJD, LOCATION: Protracted Section 11 SCALE: N/A Township 13 North Range 7 East DATE: 7-12-07 Umiot Meridian NANUQ JOB NO. SHEET DESCRIPTION: As -built Coordinates 05204 4 of 4 Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) Sent: Monday, January 28, 2013 12:52 PM To: Fisher, Samantha J (DOA) Subject: ODSN-20i (PTD 213-008) Put this in the trans letter: Pioneers request to waive the diverter system as required by 20 AAC 25.035 (c) while drilling surface hole is DENIED. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) 1/28/2013 Bettis, Patricia K (DOA) From: Vaughan, Alex [Alex.Vaughan@pxd.com] Sent: Monday, January 21, 2013 8:43 AM To: Bettis, Patricia K (DOA) Cc: Roby, David S (DOA); Schwartz, Guy L (DOA) Subject: RE: Permit to Drill: ODSN-20i Attachments: ODSN-20i KE4 wp08.pdf Patricia, As requested please find the updated ODSN-20i directional program attached. If the AOGCC requires additional information to process the ODSN-20i Permit to Drill please advise. Alex Vaughan Senior Drilling Engineer PIONEER NATURAL RESOURCES 907.343.2186 (office) 907.748.5478 (mobile) From: Bettis, Patricia K (DOA)[ma iIto: patricia.bettis(a)alaska.gov] Sent: Friday, January 18, 2013 4:24 PM To: Vaughan, Alex Cc: Roby, David S (DOA); Schwartz, Guy L (DOA) Subject: Permit to Drill: ODSN-20i Good afternoon Alex, To follow up on our telephone conversation on January 17, 2013, under 20 AAC 25.050, if a well is to be intentionally deviated, the application for a Permit to Drill (Form 10-401) must include a wellbore survey report. The wellbore survey that was submitted with the proposed ODSN-20i Form 10-401 is stamped "DRAFT". A final wellbore survey needs to be submitted to the commission before the application is processed. Under 20 AAC 25.015(b), to change a program approved in a Permit to Drill or to change information under 20 AAC 25.005(c) after drilling operations start, the operator shall submit and obtain the commission's approval of a new application for a Permit to Drill, if the proposed bottom -hole location or the proposed location of an objective formation is changed by more than 500 feet laterally or vertically, or if the change requires a spacing exception under 20 AAC 25.055. If you have any questions, please do not hesitate to call me at (907) 793-1238. Thank you, Patricia Patricia Bettis Senior Petroleum Geologist Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, AK 99501 Tel: (907) 793-1238 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. Bettis, Patricia K (DOA) From: Bettis, Patricia K (DOA) Sent: Friday, January 18, 2013 4:24 PM To: 'alex.vaughan@pxd.com' Cc: Roby, David S (DOA); Schwartz, Guy L (DOA) Subject: Permit to Drill: ODSN-20i Good afternoon Alex, To follow up on our telephone conversation on January 17, 2013, under 20 AAC 25.050, if a well is to be intentionally deviated, the application for a Permit to Drill (Form 10-401) must include a wellbore survey report. The wellbore survey that was submitted with the proposed ODSN-20i Form 10-401 is stamped "DRAFT". A final wellbore survey needs to be submitted to the commission before the application is processed. Under 20 AAC 25.015(b), to change a program approved in a Permit to Drill or to change information under 20 AAC 25.005(c) after drilling operations start, the operator shall submit and obtain the commission's approval of a new application for a Permit to Drill, if the proposed bottom -hole location or the proposed location of an objective formation is changed by more than 500 feet laterally or vertically, or if the change requires a spacing exception under 20 AAC 25.055. If you have any questions, please do not hesitate to call me at (907) 793-1238. Thank you, Patricia Patricia Bettis Senior Petroleum Geologist Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, AK 99501 Tel: (907) 793-1238 1 TRANSMITTAL LETTER CHECKLIST WELL NAME ObSN - ao� PTD# 3 0 0 Development Service Exploratory Stratigraphic Test Non -Conventional Well FIELD: POOL: Op tkr L' lni Sl,.f' i Check Box for Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTILATERAL 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 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 tar et zones. Non -Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 9/09/2011 __'4t1-CHECKLIST Field & Pool OOOGURUK, NUIQSUT OIL - 576150 vr+:2130080 Company PIONEER NATURAL RESOURCES ALASKA INC Initial Class/Type Well Name: OOOGURUK ODSN-20i Program SER Well bore seg SER / PEND GeoArea 890 Unit On/Off Shore Off Annular Dispc Administration 17 Nonconven. gas conforms to AS31.05.030(j.1.A),(j.2.A-D) NA 1 Permit fee attached NA 2 Lease number appropriate Yes ADL0355036 (Surf location and Top Prod Interval); ADL0389959 (portion of Prod Interval and TD) 3 Unique well name and number Yes Oooguruk ODSN-20i 4 Well located in a defined pool Yes OOOGURUK, NUIQSUT OIL - 576150, governed by CO 597 5 Well located proper distance from drilling unit boundary Yes CO 597 specifies no restrictions as to well spacing except no pay open within 500' 6 Well located proper distance from other wells Yes of external property line where ownership or landownership changes. 7 Sufficient acreage available in drilling unit Yes 8 If deviated, is wellbore plat included Yes 9 Operator only affected party Yes Wellbore is more than 8,400 ft from property line where ownership or landownership changes. 10 Operator has appropriate bond in force Yes Appr Date 11 Permit can be issued without conservation order Yes 12 Permit can be issued without administrative approval Yes PKB 1/23/2013 13 Can permit be approved before 15-day wait Yes 14 Well located within area and strata authorized by Injection Order # (put IO# in comments) (For Yes Area Injection Order 34 15 All wells within 1/4 mile area of review identified (For service well only) Yes ODSN-34i (25 ft inside area of review) 16 Pre -produced injector: duration of pre -production less than 3 months (For service well only) Yes Well will be pre -produced for an indeterminate amount of time. 18 Conductor string provided Yes 16" conductor set at 158' md. (driven) Engineering 19 Surface casing protects all known USDWs NA No aquifers... Per AIO 34 20 CMT vol adequate to circulate on conductor & surf csg Yes 11 3/4" surface casing will be fully cemented. 21 CMT vol adequate to tie-in long string to surf csg No Production casing will be cemented to 500' above Kuparuk fm. 22 CMT will cover all known productive horizons Yes ported liner with swell packers using in horz. Section. 23 Casing designs adequate for C, T, B & permafrost Yes 24 Adequate tankage or reserve pit Yes Rig has steel pits. Drilling waste to be injected on pad into approved disposal wells. 25 If a re -drill, has a 10-403 for abandonment been approved NA 26 Adequate wellbore separation proposed Yes Proximity analysis performed. No issues. 27 If diverter required, does it meet regulations Yes Diverter required.. Pioneer requested waiver but was denied. Appr Date 28 Drilling fluid program schematic & equip list adequate Yes Max formation press= 3202 psi ( 9.8 ppg EMW) Will drill with 7.2-8.2 ppg mud utilizing MPD for BHP control. GLS 1/28/2013 29 BOPEs, do they meet regulation Yes 30 BOPE press rating appropriate; test to (put psig in comments) Yes MASP=2511 psi Will test BOP to 4500 psi 31 Choke manifold complies w/API RP-53 (May 84) Yes 32 Work will occur without operation shutdown No OP shutdown is planned after 7" casing is cemented in place (seasonal drilling restriction) 33 Is presence of H2S gas probable No H2S in not likely. Rig has sensors and alarms. 34 Mechanical condition of wells within AOR verified (For service well only) Yes AOR completed. No wells in 1/4_mile area. 35 Permit can be issued w/o hydrogen_ sulfide measures Yes H2S not expected. Rig equipped with sensors & seques. Agents. Geology 36 Data presented on potential overpressure zones Yes Expected reservoir pressure is 9.8 ppg EMW; production section will be drilled using 7.2-8.2 ppg and Appr Date 37 Seismic analysis of shallow gas zones NA managed pressure drilling technology to maintain equivalent circulation density of 9.8 to 10.2 ppg PKB 1/23/2013 38 Seabed condition survey (if off -shore) NA Offshore man-made island 39 Contact name/phone for weekly progress reports [exploratory only] NA Geologic Engineering Public Grassroots Niqsuit Injector... will be pre -produced for several months before conversion to injection. GIs Commissioner: Date: Commissioner: Date Co i i Date OTS it 30ti
