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221-105
Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 01/12/2023 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 4Q 2022. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through the end of 4Q 2022. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404 Report of Sundry Operations. If you have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Engineer Hilcorp North Slope, LLC By Samantha Carlisle at 3:53 pm, Jan 12, 2023 Digitally signed by Oliver Sternicki (4525) DN: cn=Oliver Sternicki (4525), ou=Users Date: 2023.01.12 14:52:49 -09'00' Oliver Sternicki (4525) DATA SUBMITTAL COMPLIANCE REPORT 4/27/2022 Permit to Drill 2211050 Well Name/No. PRUDHOE BAY UN ORIN Z-220 Operator Hilcorp North Slope, LLC API No. 50-029-23705-00-00 MD 17691 TVD 4916 Completion Date 2/9/2022 Completion Status 1-0I1- Current Status 1-0I1- UIC No REQUIRED INFORMATION Mud Log No V Samples No U//*" Directional Survey Yes DATA INFORMATION List of Logs Obtained: ROP, AGR, DGR, ABG, EWR, ADR MD & TVD: main, PB1, PB2 Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Type Med/Frmt Number Name Scale Media No ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data ED DF 36377 Digital Data (from Master Well Data/Logs) Interval OH / Start Stop CH Received Comments 5936 17654 2/25/2022 Electronic Data Set, Filename: PBU Z-220 ADR Quadrants All Curves.las 105 17691 2/25/2022 Electronic Data Set, Filename: PBU Z-220 LWD Final.las 2/25/2022 Electronic File: PBU_Z-220_ADR _Images.dlis 2/25/2022 Electronic File: PBU_Z-220_ADR_Images.ver 2/25/2022 Electronic File: PBU Z-220 Geosteering EOW Plot.emf 2/25/2022 Electronic File: PBU Z-220 Geosteering EOW Plot.pdf 2/25/2022 Electronic File: PBU Z-220 Customer Survey.xlsx 2/25/2022 Electronic File: PBU Z-220 Geosteering End of Well Report.pdf 2/25/2022 Electronic File: PBU Z-220 Post Well Geosteering X-Section.pdf 2/25/2022 Electronic File: PBU Z-220 Post -Well Geosteering X-Section with PBs.pdf 2/25/2022 Electronic File: PBU Z-220 Geosteering EOW Plot150dpi.tif 2/25/2022 Electronic File: PBU Z-220 Geosteering EOW Plot300dpi.tif 2/25/2022 Electronic File: PBU Z-220 LWD Final MD.cgm 2/25/2022 Electronic File: PBU Z-220 LWD Final TVD.cgm 2/25/2022 Electronic File: PBU Z-220 Final Surveys.xlsx AOGCC Page 1 of 4 Wednesday, April 27, 2022 DATA SUBMITTAL COMPLIANCE REPORT 4/27/2022 Permit to Drill 2211050 Well Name/No. PRUDHOE BAY UN ORIN Z-220 Operator Hilcorp North Slope, LLC API No. 50-029-23705-00-00 MD 17691 TVD 4916 Completion Date 2/9/2022 Completion Status 1-0IL Current Status 1-0IL UIC No ED DF 36377 Digital Data 2/25/2022 Electronic File: Z-220_Definitive Survey Report.pdf ED DF 36377 Digital Data 2/25/2022 Electronic File: Z-220_Definitive Survey Report.txt ED DF 36377 Digital Data 2/25/2022 Electronic File: Z-220_GIS.txt ED DF 36377 Digital Data 2/25/2022 Electronic File: Z-220_Plan.pdf ED DF 36377 Digital Data 2/25/2022 Electronic File: Z-220_VSec.pdf ED DF 36377 Digital Data 2/25/2022 Electronic File: PBU Z-220 LWD Final MD.emf ED DF 36377 Digital Data 2/25/2022 Electronic File: PBU Z-220 LWD Final TVD.emf ED DF 36377 Digital Data 2/25/2022 Electronic File: PBU Z-220 LWD Final MD.pdf ED DF 36377 Digital Data 2/25/2022 Electronic File: PBU Z-220 LWD Final TVD.pdf ED DF 36377 Digital Data 2/25/2022 Electronic File: PBU Z-220 LWD Final MD.tif ED DF 36377 Digital Data 2/25/2022 Electronic File: PBU Z-220 LWD Final TVD.tif ED DF 36378 Digital Data 105 12907 2/25/2022 Electronic Data Set, Filename: PBU Z-220PB1 LWD Final.las ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final MD.cgm ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final TVD.cgm ED DF 36378 Digital Data 2/25/2022 Electronic File: Z-220PB1_Definitive Survey Report.pdf ED DF 36378 Digital Data 2/25/2022 Electronic File: Z-220PB1_Definitive Survey Report.txt ED DF 36378 Digital Data 2/25/2022 Electronic File: Z-220PB1_GIS.txt ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final MD.emf ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final TVD.emf ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final M D. pdf ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final TVD.pdf ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final MD.tif ED DF 36378 Digital Data 2/25/2022 Electronic File: PBU Z-220PB1 LWD Final TVD.tif AOGCC Page 2 of 4 Wednesday, April 27, 2022 DATA SUBMITTAL COMPLIANCE REPORT 4/27/2022 Permit to Drill 2211050 Well Name/No. PRUDHOE BAY UN ORIN Z-220 Operator Hilcorp North Slope, LLC MD 17691 TVD 4916 ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data ED DF 36379 Digital Data Well Cores/Samples Information: Name INFORMATION RECEIVED Completion Report OY Production Test Information Y NA Geologic Markers/Tops ems/ COMPLIANCE HISTORY API No. 50-029-23705-00-00 Completion Date 2/9/2022 Completion Status 1-OIL Current Status 1-0I1- UIC No 105 15216 2/25/2022 Electronic Data Set, Filename: PBU Z-220PI32 LWD Final.las 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final MD.cgm 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final TVD.cgm 2/25/2022 Electronic File: Z-220PB2_Definitive Survey Report.pdf 2/25/2022 Electronic File: Z-220PB2_Definitive Survey Report.txt 2/25/2022 Electronic File: Z-220PB2_GIS.txt 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final MD.emf 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final TVD.emf 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final M D. pdf 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final TVD.pdf 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final MD.tif 2/25/2022 Electronic File: PBU Z-220PB2 LWD Final TVD.tif Sample Interval Total Set Start Stop Boxes Received Number Comments Directional / Inclination Data QY Mud Logs, Image Files, Digital Data Y Q Core Chips Y /(Q Mechanical Integrity Test Information Y / NA Composite Logs, Image, Data File Core Photographs Y / NA Daily Operations Summary e Cuttings Samples Y /e Laboratory Analyses Y NA AOGCC Page 3 of 4 Wednesday, April 27, 2022 DATA SUBMITTAL COMPLIANCE REPORT 4/27/2022 Permit to Drill 2211050 Well Name/No. PRUDHOE BAY UN ORIN Z-220 Operator Hilcorp North Slope, LLC MD 17691 TVD 4916 Completion Date 2/9/2022 Completion Status 1-0I1- Current Status 1-0I1- Completion Date: 2/9/2022 Release Date: 12/10/2021 Description Date Comments Comments: Compliance Reviewed By: M. Guhl API No. 50-029-23705-00-00 Date: 4/27/2022 UIC No AOGCC Page 4 of 4 Wednesday, April 27, 2022 David Douglas Hilcorp Alaska, LLC Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Hilcorp North Slope, LLC Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Date: 02/25/2022 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 DATA TRANSMITTAL PBU Z-220 PTD: 221-105 API: 50-029-23705-00-00 221-105 T36377 FINAL LWD FORMATION EVALUATION LOGS (01/10/2022 to 02/02/2022) • AGR, EWR-M5, ABG, DGR, ADR, Horizontal Presentation (2" & 5" MD/TVD Color Logs) • Final Definitive Directional Survey • Geosteering and EOW Report SFTP Transfer — Main Folders: Name Type Z-220 FNAL LWD Filefolder Z-220 FINAL GEOSTEERING + EOW File folder FINAL LWD: _Log Viewers Filefolder CGM Filefolder DATA Filefolder L1 D ef i n itive Su rvey Filefolder F1 EMF Filefolder PDF Filefolder TFF Filefolder FINAL GEOSTEERING + EOW: Flame Type _Log Viewers Filefolder DATA Filefolder EMF Filefolder PDF Filefolder Reports Filefolder 11FF Filefolder Please include current contact information if different from above. Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Meredith G U h I Date: Digitally signed by Meredith Guhl Date: 2022.02.28 07:48:20-09'00' 221-105 David Douglas Hilcorp Alaska, LLC T36378 Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 ij Anchorage, AK 99503 Hilcorp North Slope, LLk Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Date: 02/25/2022 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 DATA TRANSMITTAL PBU Z-220PB1 PTD: 221-105 API: 50-029-23705-70-00 FINAL LWD FORMATION EVALUATION LOGS (01110/2022 to 01/22/2022) • AGR, EWR-M5, ABG, DGR, ADR, Horizontal Presentation (2" & 5" MD/TVD Color Logs) • Final Definitive Directional Survey Z-220PB1 FINAL LWD: _Log Viewers Filefolder _ CGM Filefolder F1 DATA Filefolder L1 D ef i n itive Su rvey Filefolder F1 EMF Filefolder F1 PDF Filefolder 11FF Filefolder Please include current contact information if different from above. Please acknowledge receipt by signing and returning one copy of this transmittal. Received By- Meredith G u h l Date: Digitally signed by Meredith Guhl Date: 2022.02.28 07:50:14-09'00' 221-105 David Douglas Hilcorp Alaska, LLC T36379 Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 11 Anchorage, AK 99503 Hilcorp North Slope, LLC Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Date: 02/25/2022 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 DATA TRANSMITTAL PBU Z-220PB2 PTD: 221-105 API: 50-029-23705-71-00 FINAL LWD FORMATION EVALUATION LOGS (01110/2022 to 01/31/2022) • AGR, EWR-M5, ABG, DGR, ADR, Horizontal Presentation (2" & 5" MD/TVD Color Logs) • Final Definitive Directional Survey Z-220PB2 FINAL LWD: _Log Viewers Filefolder CGM Filefolder F1 DATA Filefolder L1 D ef i n itive Su rvey Filefolder F1 EMF Filefolder F1 PDF Filefolder 11FF Filefolder Please include current contact information if different from above. Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Digitally signed by Meredith Guhl Meredith G u h I Date: 2022.02.28 07:51:55-09'00' RECEIVED By Meredith Guhl at 3:53 pm, Feb 23, 2022 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: Oil Gas] SPLUG [ Other ] Abandoned ] Suspended ] 20AAC 25.105 20AAC 25.110 GINJ [ WINJ ] WAG ] WDSPL C No. of Completions: 1 1b. Well Class: Development ] Exploratory [ Service [ Stratigraphic Test ❑ 2. Operator Name: Hilcorp Alaska, LLC 6. Date Comp., Susp., or Aband.: 2/9/2022 14. Permit to Drill Number / Sundry: 221-105 3. Address: 3800 Centerpoint Drive, Suite 1400, Anchorage, AK 99503 7. Date Spudded: 1/10/2022 15. API Number: 50-029-23705-00-00 4a. Location of Well (Governmental Section): Surface: 4295' FSL, 2832' FEL, Sec. 19, T11 N, R12E, UM, AK Top of Productive Interval: 1668' FNL, 1899' FWL, Sec. 19, T11 N, R12E, UM, AK Total Depth: 1378' FNL, 251' FEL, Sec. 07, T11 N, R12E, UM, AK 8. Date TD Reached: 2/1/2022 16. Well Name and Number: PBU Z-220 9. Ref Elevations: KB: 82.89' GL: 56.1' BF: 17. Field / Pool(s): Prudhoe Bay Field/ Schrader Bluff Oil Pool, Orion Dev Area 10. Plug Back Depth MD/TVD: 17,689' / 4,916' 18. Property Designation: ADL 028262 & 047450 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 599846 y- 5959100 Zone-4 TPI: x- 599632 y- 5958414 Zone-4 Total Depth: x- 602252 y- 5969299 Zone-4 11. Total Depth MD/TVD: 17,691' / 4,916' 19. DNR Approval Number: 85-009 12. SSSV Depth MD/TVD: None 20. Thickness of Permafrost MD/TVD: 2,106' / 1,833' 5. Directional or Inclination Survey: Yes k (attached) No Submit electronic information per 20 AAC 25.050 13. Water Depth, if Offshore: N/A (ft MSL) 21. Re-drill/Lateral Top Window MD/TVD: N/A 22. Logs Obtained: List all logs run and, pursuant to AS 31.05.030 and 20 AAC 25.071, submit all electronic data within 90 days of completion, suspension, or abandonment, whichever occurs first. Types of logs to be listed include, but are not limited to: mud log, spontaneous potential, gamma ray, caliper, resistivity, porosity, magnetic resonance, dipmeter, formation tester, temperature, cement evaluation, casing collar locator, jewelry, and perforation record. Acronyms may be used. Attach a separate page if necessary PB 1: ROP, AGR, DGR, ABG, EWR, ADR MD & TVD PB 2: ROP, AGR, DGR, ABG, EWR, ADR MD & TVD A: ROP, AGR, DGR, ABG, EWR, ADR MD & TVD 23. CASING, LINER AND CEMENTING RECORD CASING WT. PER FT GRADE SETTING DEPTH MD SETTING DEPTH TVD HOLE SIZE CEMENTING RECORD AMOUNT PULLED TOP BOTTOM TOP BOTTOM 20"x34" 215.5# A-53 26' 106' 26' 106' 42" 17 yds Concrete 9-5/8" 47# L-80 26' 2,311' 26' 2,001' 12-1/4" Stg 1 L - 454 sx / T - 398sx 40# L-80 2,311' 5,946' 2,011' 4,699' Stg 2 L - 610 sx / T - 270 sx 7" 26# L-80 25' 5,778' 25' 4,681' Tieback Uncemented Tieback Liner 6-5/8" 20# L-80 5,770 17,691' 4,680' 4,916' 4-1/2" Uncemented Slotted Liner 24. Open to production or injection? Yes ] No [ If Yes, list each interval open (MD/TVD of Top and Bottom; Perforation Size and Number; Date Perfd): 6-5/8" Slotted Liner 2/6/2022 5920' 9418' 4697' - 4801' Completion Date 9807' - 13778' 4836' - 4864' 2/9/2022 15012' - 17649' 4828' - 4915' MDG 25. TUBING RECORD SIZE DEPTH SET (MD) PACKER SET (MD/TVD) 4-1/2" 12.6# L-80 5,850' 5,502' / 4,602' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. Was hydraulic fracturing used during completion? Yes ] No Per 20 AAC 25.283 (i)(2) attach electronic information DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED 27. PRODUCTION TEST Date First Production: Not on Production Method of Operation (Flowing, gas lift, etc.): N/A Date of Test: Hours Tested: Production for Test Period Oil-BbI: Gas-MCF: Water-Bbl: Choke Size: Gas -Oil Ratio: Flow Tubing Press. Casing Press: Calculated 24-Hour Rate Oil-BbI: Gas-MCF: Water-Bbl: Oil Gravity - API (corr): Sr Pet Eng MGR09MAR2022 Sr Pet Geo DLB 04/26/2022 Sr Res Eng U Form 10-407 Revised 3/2020 RBDMS 2/24/2022 MDG Submit within 30 days of Completion, Suspension, or Abandonment 28. CORE DATA Conventional Core(s): Yes ❑ No ❑� Sidewall Cores: Yes ❑ No ❑� If Yes, list formations and intervals cored (MD/TVD, From/To), and summarize lithology and presence of oil, gas or water (submit separate pages with this form, if needed). Submit detailed descriptions, core chips, photographs, and all subsequent laboratory analytical results per 20 AAC 25.071. 29. GEOLOGIC MARKERS (List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Well tested? Yes ❑ No Ev If yes, list intervals and formations tested, briefly summarizing test results. Permafrost - Top 60' 60' Permafrost - Base 2166' 1893' Attach separate pages to this form, if needed, and submit detailed test Top of Productive Interval 5878' 4693' MDG information, including reports, per 20 AAC 25.071. SV5 1948' 1731' SV1 3358' 2808' Ugnu 3 4051' 3469' Ugnu MB 5017' 4330' Schrader Bluff NA 5424' 4569' Schrader Bluff OBd 5878' 4693' Formation at total depth: SB OBd 6878' 4693 31. List of Attachments: LOT / FIT Data Sheet, Drilling and Completion Reports, Casing and Cement Report, Definitive Directional Surveys, Wellbore Schematic Information to be attached includes, but is not limited to: summary of daily operations, wellbore schematic, directional or inclination survey, core analysis, paleontolociical report, reduction or well test results er 20 AAC 25.070. 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Authorized Name: Monty Myers Contact Name: Joe Lastufka Authorized Title: Drilling Manager Contact Email: mose h.lastufka hilcor .com Authorized DigiallyslgnedbyMonyMMyers Contact Phone: 777-8400 -Monty M Myers, -US, 2 .2 3.2 0 2 2 Monty M o" Signature w/Date: °-"Il orpAsska. LLC• ou=Technical a11=mmye1@hi1c°rp.c°m Myers Date2022...pp02.23 49thi.d-Oment INSTRUCTIONS General: This form and the required attachments provide a complete and concise record for each well drilled in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC, no matter when the analyses are conducted. Item 1a: Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 1 b: Well Class - Service wells: Gas Injection, Water Injection, Water -Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Item 4b: TPI (Top of Producing Interval). Item 9: The Kelly Bushing, Ground Level, and Base Flange elevations in feet above Mean Sea Level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 15: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 19: Report the Division of Oil & Gas / Division of Mining Land and Water: Plan of Operations (LO/Region YY-123), Land Use Permit (LAS 12345), and/or Easement (ADL 123456) number. Item 20: Report measured depth and true vertical thickness of permafrost. Provide MD and TVD for the top and base of permafrost in Box 29. Item 22: Review the reporting requirements of 20 AAC 25.071 and, pursuant to AS 31.05.030, submit all electronic data within 90 days of completion, suspension, or abandonment, whichever occurs first. Item 23: Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other (explain). Item 28: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Pursuant to 20 AAC 25.071, submit detailed descriptions, core chips, photographs, and all subsequent laboratory analytical results, including, but not limited to: porosity, permeability, fluid saturation, fluid composition, fluid fluorescence, vitrinite reflectance, geochemical, or paleontology. Item 30: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Item 31: Pursuant to 20 AAC 25.070, attach to this form: well schematic diagram, summary of daily well operations, directional or inclination survey, and other tests as required including, but not limited to: core analysis, paleontological report, production or well test results. Form 10-407 Revised 3/2020 Submit within 30 days of Completion, Suspension, or Abandonment CASING AND LEAK -OFF FRACTURE TESTS Well Name: PBU Z-220 Date: 1/19/2022 Csg Size/Wt/Grade: 9 5/8" 47#/40# L-80 Supervisor: Lott/Demoski Csg Setting Depth: 5948 TMD 4699 TVD 610 Mud Weight: 9.3 ppg LOT / FIT Press = 6" psi LOT / FIT = 12.00 ppg 11.7 ppg Hole Depth = 5968 and Fluid Pumped= Bbls Volume Back = bbls Estimated Pump Output: 0.062 Barrels/Stroke LOT / FIT DATA CASING TEST DATA Enter Strokes Enter Pressure Enter Strokes Enter Pressure Here Here Here Here 0 4 a 0 6 4 112 a 2 76 6 172 a 4 142 8 233 a 6 215 10 289 a 8 284 12 334 a 10 339 14 374 a 12 395 16 420 a 14 451 18 471 a 16 514 20 523 a 18 571 22 567 a 20 623 24 613 a 40 1124 26 634 a 80 2139 28 660 a 101 2710 Enter Holding Enter Holding Enter Holding Enter Holding Time Here Pressure Here Time Here Pressure Here 0 1 660 624 2 601 3 586 4 574 5 555 6 539 7 522 8 509 9 500 10 490 CLOT I FIT DATA tCASING TEST DATA 3000 2900 2800 2700 2600 2500 2400 2300 2200 2100 8 2000 1900 1800 1700 y 1600 a 1500 N 1400 a 1300 1200 1100 4 1000 900 800 700 6r6akovera 10 6si. 600 1 2 2 500 400 1 1 300 200 8 100 ti 6 2 0 0 10 20 30 40 50 60 70 80 90 100 110 Strokes (# of) t LOT / FIT DATA f CASING TEST DATA 3000 2900 2800 2700 2600 6 2500 2400 2300 2200 2100 2000 1900 1800 1700 1600 N a 1500 0 N p 1400 a 1300 1200 1100 1000 900 800 700 660 4 600 4 5 9 500 400 300 200 100 0 0 5 10 15 20 25 30 Time (Minutes) Hilcorp Energy Company Composite Report Well Name: PBW Z-220 Field: Prudhoe Bay West County/State: , Alaska API #: 50-029-23705-00-00 Spud Date: 1/10/2022 Activity Date I Ops Summary 1/9/2022 Spot and set remaining modules: pipe shed, mud mod, gen mod. Start connecting up utility lines in interconnect. NES trucks released at 08:30. Cont. connecting utility lines in interconnects. Assist electrician plugins in rig. Gen power at 09:00. Spot break shack and enviro-vac. Safe out walkways and landings post rig move. Spot Beyond shake. Work on getting steam system energized. Install steam traps and fully energize steam system. Energize water and air. Install cuttings tank and hot house. Work on rig acceptance checklist and safe out all walkways, stairways and rooftops. Warm up and function test all drawworks and top drive control. Scope up derrick and bridal down. Set BOP on diverter'T'. tighten flange bolts. Install bell nipple on top of annular. P/U knife valve and bolt up to diverter 'T'. Install diverter vent line. Sim Ops: C/O hydraulic drive motor on pipe skate. C/O saver sub. Cont. checking lines in pits. Install clamp on twin towers diverter stand. Center up stack. Pull bushings and air -boot saver. Install riser and bushings. Inflate air -boots. Hook up hole -fill line. SimOps: Finish C/O saver sub. Cont. working on rig acceptance checklist. Grease crown. Post rig move derrick inspection. Function test and inspected all rig floor equipment. Thaw sumps in mud pits. Install 5" hydraulic elevators, C/O leaking hose. Obtain RKB's. Install mousehole in rotary and close annular. 1/10/2022 Drift (3.125"), P/U and rack back 5" drill pipe. Rig Accepted at 04:00. Continue picking up and racking back 5" NC50, 19.5#, S-135 drill pipe (198 jts total). Drift = 3.125" MD. Rack back 9 stds 5" HWDP NC50, S-135, 49.3# with jars. L/D mousehole. Test gas alarms 10/20 ppm H2S, 20/40% LEL. Test PVT and alarms (test good). Perform diverter test with 5" test joint. Annular 10 secs, Knife 6 secs. 3000 psi full charge, 1950 psi drawdown, 200 psi increase 16 secs, full recovery 51 secs. 6 bottle avg 2333 psi. Mob BHA components to rig floor and prep pipeshed to M/U BHA. Install long mousehole. M/U 12-1/4" 633 Kymera on 1.5° mtr assy. Dry tag @ 36' (ice). Flood surface lines and conductor with water then check for leaks (good). PT mud line 3000 psi (test good). Wash down thru ice and drill 12- 1/4" rathole with cleanout assy F/ 36' - T/ 220' MD. 300 gpm, 260 psi, 20 rpm, 1.8k tq, 41 k up Observed 200 bbl loss @ 140' - 180' depths. Inspect well row for broaching (no found). Continue drilling ahead with losses intermittent. Pea gravel back @ shakers. BROOH F/ 220' to 98' then straight pull on elevators without issue. Rack back HWDP. M/U remaining MWD/GWD components as per Sperry/GyroData. RFO 235/783=108.04°, GWD 577/784=264.95°. Updoad MWD. M/U NM Flex DCs, XO. Non ported plunger float in mtr. Plug in and upload MWD. P/U and RIH with (2) NM flex collars. Cont. drilling 12-1/4 surface hole from 220' to 436' (total 216', AROP 43fph) at 420 gpm, 980 psi, WOB 2-5K, 40 rpms, 2-4Kft-lbs TQ, ECD 9.6 ppg. PUW 58K, SOW 61 K, ROT 59K. Losses continually improving. Continuously jetting flow line, pump down bleeder as needed. Pea gravel to —340'. Clear out packed off drag chain, due to excessive pea gravel at 300'. Take GWD surveys every stand. Cont. drilling 12-1/4 surface hole from 436' to 925' (total 489', AROP 82 fph) at 450 gpm, 1200 psi, WOB 6-8K, 60 rpms, 4Kft-lbs TQ, ECD 10. ppg with 9.1 ppg mud. PUW 72K, SOW 70K, ROT 69K. Continuously jetting flow line, pump down bleeder as needed. Pump bit balling sweep at 910'. Sliding —70% for 3*/100 build. Last GWD survey at 866'. KOP at 285'. Daily disposal to G&I: 171 bbls, total = 228 bbls. Daily water from Lake 2 620 bbls, total = 720 bbls. Daily metal 0 lbs, total = 0 lbs. Daily losses downhole 400 bbls, total = 400 bbls. Distance to WP#12: 3.28', 1.68' High, 2.82' right. 1/11/2022 Cont. drilling 12-1/4" surface hole from 925' to 1 100'(total 175', AROP 30 fph) at 500 gpm, 1350 psi, WOB 3-9K, 60 rpms, 5Kft-Ibs TQ, ECD 9.6 ppg with 9.1 ppg mud. PUW 78K, SOW 59K, ROT 75K. Jet flow line, pump down bleeder as needed. Sliding —75% for 4°/100 build Pump bit balling sweep at 910' with no change. Cont. drilling 12-1/4" surface hole from 1 100'to 1421' (total 321', AROP 54 fph) at 500 gpm, 1445 psi, WOB 3-13K, 60 rpms, 5Kft-Ibs TQ, ECD 9.7 ppg with 9.1 ppg mud. PUW 81 K, SOW 74K, ROT 79K. Jet flow line, pump down bleeder as needed. Sliding —75% for 4°/100 build. B/R full stds. Cont. drilling 12-1/4" surface hole from 1421' to 1924' (total 503', AROP 84 fph) at 500 gpm, 1445 psi, WOB 3-13K, 60 rpms, 5Kft-lbs TQ, ECD 9.7 ppg with 9.1 ppg mud. PUW 81 K, SOW 74K, ROT 79K. Jet flow line, pump down bleeder as needed. Start tangent at 1465'. Cont. drilling 12-1/4" surface hole from 1924' to 2530' (total 606', AROP 101 fph) at 500 gpm, 1620 psi, WOB 6-1 OK, 80 rpms, 6.5Kft-lbs TQ, ECD 10.45 ppg with 9.5 ppg mud. PUW 105K, SOW 77K, ROT 90K. Jet flow line, pump down bleeder as needed. Base of permafrost logged at 2166'MD. Daily disposal to G&I: 1026 bbls, total = 1254 bbls. Daily water from Lake 2: 1120 bbls, total = 1840 bbls. Daily metal 0 lbs, total = 0 lbs. Daily losses downhole 0 bbls, total = 400 bbls. Distance to WP#12: 8.64', 8.19' Low, 2.74' Right. 1/12/2022 Cont. drilling 12-1/4" surface hole from 2530' to 3262' (total 732', AROP 122 fph) at 550 gpm, 2040 psi, WOB 12-14K, 80 rpms, 8Kft-lbs TQ, ECD 10.36 ppg with 9.6 ppg mud. Max Gas 1492U. PUW 120K, SOW 87K, ROT 102K. Back ream full stands. Start 4.5°/100' drop/turn at 3100'. Cont. drilling 12-1/4" surface hole from 3262' to 3840' (total 578', AROP 96 fph) at 550 gpm, 2055 psi, WOB 6-14K, 80 rpms, 8-9Kft-lbs TQ, ECD 10.3 ppg with 9.45 ppg mud. Max Gas 904U. PUW 130K, SOW 95K, ROT 107K. Back ream full stands. Slide as needed for 4.5'/100' drop/ turn. Cont. drilling 12-1/4" surface hole from 3840' to 4243' (total 403', AROP 67 fph) at 550 gpm, 2110 psi, WOB 6-16K, 80 rpms, 11 Kft-lbs TQ, ECD 10.4 ppg with 9.45 ppg mud. Max Gas 346U. PUW 161 K, SOW 103K, ROT 122K. Back ream full stands. Slide as needed for 4.5°/100' build/ turn. Cont. drilling 12-1/4" surface hole from 4243' to 4530' (total 287', AROP 48 fph) at 550 gpm, 2171 psi, WOB 12-15K, 80 rpms, 11 Kft-lbs TQ, ECD 10.14 ppg with 9.45 ppg mud. Max Gas 334U. PUW 160K, SOW 99K, ROT 121 K. Back ream full stands. Slide as needed for 4.5'/100' build/ turn. Daily disposal to G&I: 1492 bbls, total = 2746 bbls. Daily water from Lake 2: 1130 bbls, total = 2970 bbls. Daily metal 0 lbs, total = 0 lbs. Daily losses downhole 0 bbls, total = 400 bbls. Distance to WP#12: 10.11', 7.53' High, 6.74' Right. 1/13/2022 Cont. drilling 12-1/4" surface hole from 4530' to 4851' MD, 4,202 TVD, (total 321', AROP 53.5 fph) at 550 gpm, 1930 psi, WOB 13K, 80 rpms, 13.5Kft-lbs TQ, ECD 10.17 ppg with 9.4 ppg mud. Max Gas 317u. PUW 185K, SOW 98K, ROT 128K. Back ream full stands. Slide as needed for 4.5'/100' build/ turn. Cont. drilling 12- 1/4" surface hole from 4851' to 5177' MD, 4,202 TVD, (total 321', AROP 53.5 fph) at 550 gpm, 2055 psi, WOB 8-18K, 80 rpms, 14-16Kft-lbs TQ, ECD 10.17 ppg with 9.4 ppg mud. Max Gas 285u. PUW 187K, SOW 99K, ROT 131 K. Back ream full stands. Slide as needed for 4.5'/100' build/turn. Cont. drilling 12-1/4" surface hole from 5177' to 5421' MD, 4,437' TVD, (total 244', AROP 40.7 fph) at 550 gpm, 2110 psi, WOB 8-20K, 80 rpms, 12-18Kft-lbs TQ, ECD 10.0 ppg with 9.5 ppg mud. Max gas 445u. PUW 196K, SOW 99K, ROT 130K. Back ream full stands. Slide as needed for 4.5'/100' build/turn. Cont. drilling 12-1/4" surface hole from 5421' to 5655' MD, 4,655' TVD, (total 234', AROP 39 fph) at 550 gpm, 2110 psi, WOB 10-18K, 80 rpms, 13-20Kft-bls TQ, ECD 10.11 ppg with 9.4 ppg mud. Max gas 428u. PUW 202K, SOW 97K, ROT 131 K. Back ream full stands. Slide as needed for 4.5'/100' build/turn. Daily disposal to G&I = 1,321 bbl, Total = 4,067 bbl. Daily H2O from Lake 2: =1,280 bbl, Total = 4,250 bbl. Daily Metal: 0 lbs, Total = 0 lbs. Daily DH Loss: 0 bbl, Total = 400 bbl. Distance to WP#12: 13.35', 13.31' Low, 1.13' Left. 1/14/2022 Cont. drilling 12-1/4" surface hole from 5655' to 5948' MD, (4,699' TVD), (total 2393, AROP 58 fph) at 550 gpm, 2240 psi, WOB 10-20K, 80 rpms, 14-18Kft-bls TQ, ECD 10.2 ppg with 9.4 ppg mud. Max gas 428u. PUW 201 K, SOW 91 K, ROT 131 K. Back ream full stands. Slide as needed for 4.5'/100' build/turn. Crossed Fault @ 5517' MD with 277' DTSW Throw from NA to OBb.ast Survey = MD 5893. fic 84.85 Azi 47.73 Tvd 4694.44. Distance to Plan = 13.06' total 13.05' low and 0.69' right of plan line BROOH from 5948' to 5805' MD, Pump 40 bbls 9.4 ppg, 160 Visc/Nut Plug Sweep, 550 GPM, 2115 PSI, 80 RPM, 13-18k Tq while reciprocate pipe, lowering YP to 30 and Visc to -70. Sweep back on time with minimal change at shakers, circulate additional bottoms up after sweep. Orient Tool Face to High sidw and TIH on elevators from 5805 to 5928', wash down last 20' to 5948'w/no fill. Lay Down on Joint 5" DP. PUW 196K, SOW 95K on bottom. BROOH from 5948' to 4430', 550 GPM, 1830 PSI, 80 RPM, 15-18K TQ, 10.3 ECD, 222u max gas. 25-307min pulling speed. PUW 175K, SOW 95K, ROT 127K. BROOH from 4430' to 1259', slowed to 47min pulling speed from 2649' to 2457' for 1.5x bottoms up prior to the base of permafrost. 550 GPM, 1450 PSI, 80 RPM. 4- 5K TQ, 10.4 ECD. 265u max gas. 25-307min pulling speed. PUW 89K, SO 69K, ROT 80K. BROOH from 1259' to 756', 550 GPM, 1175 PSI, 80 RPM, 3-8K TQ, 10.9 ECD, 4u max gas, circulated 1.5x bottoms up while pulling last stand before HW DP. Attempt to pull on elevators but saw 40K overpull. Continue to BROOH from 756' to 406', 450 GPM, 865 PSI, 40 RPM, 1-5K TQ. PUW 74K, SOW 71 K, ROT 72K. Pull on elevators, racking back HWDP from L/D 406' to 160'. L/D XO & two NMDC to 98'. Read MWD tools communication slow, only partial read will read the remainder in the pipe shed. L/D BHA from 98' to top of mud motor at 33'. Wear observed on top of Inline stabilizer blades. Daily disposal to G&I: 684 bbl, Total: 4,751 bbl. Daily H2O from Lake 2: 1,180 bbl, Total: 5,430 bbl. Daily Metal: 0 Ibs, Total: 0 lbs. Daily DH Loss: 0 bbl, Total: 400 bbl. 1/15/2022 L/D Sperry mud motor and bit from 33'. Bit graded 3-5-BT-A-X-1-CT-TD. Clean and clear rig floor. PJSM. Rig up Weatherford Volant CRT, bail extensions and 250t side door elevators. Rig up casing tongs and mobilize 9-5/8" TXP and VAM casing XOs to the rig floor. M/U 9-5/8" shoe track: Float shoe, 2 joints, float collar, 1 joint, Halliburton baffle adapter and 1 joint to 143'. Thread lock all connections and torque with casing tongs. Check floats - good. Run 9-5/8" 40# L-80 TXP-BTC casing from 143' to 1135'. Torque to 21,000 ft/lbs with casing tongs. Install 12-1/4" O.D. centralizers every joint to #25 then every other joint. Fill casing every 5 joints and break circ every 10th. Run 9-5/8" 40# L-80 TXP-BTC casing from 11 35'to 2285' at 40-607min. Torque to 21,000 ft/lbs with casing tongs. Install 12-1/4" O.D. centralizers every other joint. Fill casing every 5 joints and break circ every 10th. Work pipe f/ 11 35't/ 1388' with 3 BPM, 120 PSI, 5-10 RPM, 18K TQ. Circulate a bottoms up at 2285' below the base of permafrost. Stage pumps up to 7 BPM, 175 PSI, 10 RPM, 10-12K TQ. Max gas 56u. Run 9-5/8" 40# L-80 TXP- BTC casing from 2285' to 3102' at 40-607min. Torque to 21,000 ft/lbs with casing tongs. Install 12-1/4" O.D. centralizers every other joint to #69. Fill casing every 5 joints and break circ every 10th. 4 bbls losses every 10 joints, slow running speed. Circulate a bottoms up at 3102' before the build and turn. Stage pumps up to 7 BPM, 185 PSI, 5 RPM, 13-15K TQ. Run 9-5/8" 40# L-80 TXP-BTC casing from 3102' to 3712' at 30-407min. Torque to 21,000 ft/lbs with casing tongs. Fill casing every 5 joints and break circ every 10th. Installed ES cementer after joint #88. Installed centralizers on 5 joints above & below ES cementer then every 3rd joint. Pin connection on BTC joint "C" not making up properly. Observing torque 3 rounds into make up. Back out, ensure hanging plumb and attempt 3x times with same result. Observed thread damage and laid down joint. Run 9-5/8" 47# L-80 VAM casing from 3712' to 4189' at 30-40'/min. Torque to 21,000 ft/lbs with casing tongs. Fill casing every 5 joints and break circ every 10th. Installed centralizers on every 3rd joint. PUW 215K, SOW 103K. 79 bbls lost 12:00 - 00:00. Run 9-5/8" 47# L- 80 VAM casing from 4189' to 5948' at 30-407min. Torque to 21,000 ft/lbs with casing tongs. Fill casing every 5 joints and break circ every 10th. Installed centralizers on every 3rd joint. Est. circulation and stage up pump to 7 BPM, 290 PSI, 1 RPM, 17K TQ while reciprocating 40'. Adding 20 bbI/hr water to condition mud. 9.5 ppg MW in. No losses. PUW 365K, SOW 120K, ROT 134K. 1/16/2022 Continue circulate and condition staging up pump to 7 BPM, 290 PSI, 1 RPM, 17K TQ while reciprocating 40'. Adding 20 bbI/hr water to condition mud. 9.5 ppg MW in, lower YP to -19 No losses. PUW 365K, SOW 120K, ROT 134K. PJSM, Wet lines w/ 5 bbls H2O (HES) and P/T low kick out 1,511 low/ 4,100 high. Pump 1st stage cement job as follows: 57 bbls 10 ppg Tuned spacer w/ 4# red dye & 5 lb/bbl poly flake (1st 10 bbls) 3.5 bpm, 320 psi. Mix & Pump 189 bbls (454 sx) 12 ppg EconoCem Type 111 Lead cmt, 2.347 y1d, 4.5 bpm, 450 PSI. 80 bbls (398 sx) 15.8 ppg HalCem Type 111 Tail cmt, 1.156 yld, 3 bpm, ICP 580 psi FCP 522 PSI. Release F/ Volant, drop shutoff plug. Displace w/ 20 bbls H2O f/CMT Unit 5 bpm, 410 psi. Turn over to rig. Rig disp w/ 235 bbls 9.5 ppg spud mud, 7 bpm, ICP 338 psi, FCP 600 psi. Stop Rot & Rec string set at 5,946' MD W/ 250K string WT. HES disp 80 bbls 9.4 ppg spacer, 4.5 bpm 744 psi. Rig disp 105.9 bbls 9.5 ppg spud mud 3 bpm, ICP @ 6 bpm 954 psi. Reduced rate last 36 bbls to 2 bpm, FCP 1200 PSI. Bump plug, Press up to 1,700 PSI with 440.9 bbls actual / 436.5 bbls calculated. Held pressure for 5 minutes, check floats - good. CIP 12:00 hrs. Lost 49 bbls during job. Pump at 3 bpm Press up to 3,088 psi ES cementer opened. Increase pumps to 5 bpm 850 ICP, 400 FCP. CBU x2, overboard 272 bbls clabbered up mud and 16'bbls green CMT. Shoe set @ 5946'. Disconnect knife valve and flush stack W/ black H2O. Function Annular 2X. Stage pumps up to 5 bpm 360 psi. SIMOPS haul excess cement and prep pits. Send trucks to Milne due impassable load blocking road to Deadhorse at the Kuparuk River. Prep pits for 2nd stage. Load 5" drill pipe into the shed. No losses while circulating. Provided 24 hour notice for BOP testing to AOGCC. PJSM. Break out Volant tool and inspect dies - good. Continue to pump with rig at 5 BPM, 400 PSI while Halliburton prime equipment. Wet lines w/ 5 bbls H2O (HES). Pump 2nd stage cement job as follows: 60 bbls 10.0 ppg Tuned spacer w/ 4# red dye & 5 lb/bbl poly flake (1st 10 bbls� 4.0 bpm, 240 psi. Mix & Pump 313 bbls (610 sx) 10.7 ppg ArcticCem Lead cmt, 2.883 yld, 3.5-5.25 bpm, ICP 327 psi FCP 445 psi. Observe poly flake at surface at 170 bbls lead cement pumped and red dye back at 180 bbls lead cement pumped. Observe good 10.7 ppg lead cement back to surface at 313 bbls of lead cement pumped.t,Aix and pump 57.45 bbls (270 sx) 15.8 ppg HalCem Type III Tail cmt,p1.17 yld, 3.25 bpm, ICP 625 psi FCP 553 PSI. Drop closing plug. Displace with 20 bbls f/ cmt unit at 7.5 BPM, 1024 PSI. Swap to rig and displace with 9.5 ppg spud mud at 6.88 BPM, ICP 558 psi FCP 1001 psi. Slow for last 10 bbls to 3 BPM, 550 PSI. Bump plug 0.99 bbl early at 2419 stks vs 2435 stks calc.169.98 bbls total displacement. Continue to pressure up andfbbserve ES cementer close at 1400 PSI, continue to 1960 PSI and hold for 5 min - good. Bleed off and check floats - good. CIP at 23:25. 229 bbls of cement observed back to surface. No losses during cement job. PJSM. Remove mousehole, R/U bridge crane & disconnect cross chains from stack. Disconnect accumulator lines to knife valve. Fill stack with black water & function annular. Disconnect & flush cement line then blow down. R/D Volant. R/D knife valve. Drain stack. Vac out 9.625" Csg for cut. R/D first section of diverter line. Sim-Ops: Haul off surface mud, clean pits and load 5" drill pipe into the shed. PJSM Loosen speed head and suspend stack. Set 9.625" emergency slips W/ 40k on slips as per Vault rep onsite. Cut 9.625" Csg (29.60'). Set stack down. Johnny whack stack & jet flowline. N/D and rack back BOP stack. Sim-Ops: Continue to clean pits and load 5" drill pipe into the shed. 1/17/2022 Remove Diverter Tee from conductor and send out with fork Lift. Bring MPD Head into cellar, install MPD on Stack and rack back stack. SIMOPS: Send out casing equipment, bushing and Bell Nipple, P/U Split bushings and MPD Nipple, bring in wear ring and test plug. Continue cleaning pits. Install Slip Lock CSG Head, Tq down Slips as per Wellhead Rep. PT RCMS to 3800 psi for 10 min. Install test plug in CSG Spool, M/U TBG Spool. SIMOPS: TQ MPD Head to Stack and continue to clean Pits. M/U DSA, Land Stack on Well and install nuts, move MPD 1 bolt hole and Re-Tq, grease choke and Perform annual inspection on KOOMEY. Finish TQ up MPD Head. TQ all flanged connections from DSA up. Install CHoke and Kill Lines, Install 4" Beyond line and hard line to Choke. Install hole Fill line and 1502 components. Install Drip Pan. Install companion flanges on Annulus. Install drain hoses. Install Koomey Lines and energize system. Install Mouse Hole and Obtain RKB's: GL-26.12', LLDS-24.51', ULDS- 22.28', LPR- 20.13', Blind Rams- 16.59', UPR- 15.19', Annular- 12.24'. SIMOPS: C/O Wash Pipe and break in as per procedure. Check Bearing Tolerance all good. M/U Dart TIW and Pump in Sub. Flood lines through Kill, Choke and Beyond Manifold, Bleed air, PT 5 min to 250/1200 psi. Good. Bleed off psi, B/D Beyond lines, Shut Orbit Valve on Stack, R/D Test Cap, install clamp style Trip Nipple. Install test plug & 5" testjoint. R/U test equipment. Fill stack & lines with fresh water. Attempt shell test, low pressure test bleeding off but high pressure holding. Suspect annular leaking & investigate same. No visible damage observed on annular. Test again & found upper IBOP leaking. PJSM. Change leaking upper IBOP. Remove tool joint locks from saver sub & lower IBOP. B/O & UD saver sub. Remove IBOP actuator assv. Remove IBOP tool joint lock. B/O & LID upper IBOP. Install replacement upper IBOP, actuator assv. lower IBOP & saver sub. Install tool joint locks & safety wire. PJSM. Install 5" test plug, rig up test equipment and fill lines with fresh water. Perform BOP body test with annular closed on 5" test joint against test plug to 250 PSI low / 3000 PSI high - good test. Notify AOGCC inspector of good test. Given approval to begin testing while he is enroute. PJSM. Perform BOPE test with 5" test joint to 250 PSI low and 3,000 PSI high for 5 min. Tested Annular, upper 2-7/8" x 5-1/2" VBR, upper IBOP, #3 kill valve, HCR kill, 5" dart valve, 5" TIW #1, choke manifold valves 7, 8, 9, 10, 11, 12, 13, 14 & 15. BOP testing continues into the next report period. 1/18/2022 Continue Perform BOPE test W/ 4.5" & 5" to 250 PSI low and 3,000 PSI high for 5 Min. Tested Choke Manifold 1-15, 5" Dart, 2 ea 5" TIW, Upper and lower IBOP, Mez Kill, HCR and manual Choke and Kill, Super Choke and manual to 1,600 PSI, Upper and lower VRB Rams (2.875" X 5.5") Blind Rams & Annular. Test H2S 10- 20 ppm, LEL 20-40%, PVT high/ low level alarms. Checked PVT sensors and return flow. Koomey draw drown Initial System 3,000 PSI, Manifold 1,300 PSI, Annular 1,500 PSI, after System 1,450 PSI, Man 1,500 PSI, Annular 1,550 PSI.200 PSI increase 30 Sec, full charge 103 sec. Nitrogen 6 bottle @ 2383 psi. Test Witnessed by AOGCC Brian Bixby. Pull Test Plug and install Wear Bushing (37" L x 10 3/4" OD x 9 1/16" ID) Blow Down Choke and Kill Lines. P/U M/U Clean out BHA with new 8.5" XR-CPS Tri Cone bit (0.9419 TFA) & 6.75" StrataForce 6:7- 6 stg 1.5° motor 32.1'. Check float Cont P/U 5" HWDP & jar to 591' MD. PJSM Single in hole W/ 5" 19.5# S-135 NC50 D.P. F/ skate F/ 591' to 2,300' MD. Fill pipe prior to tagging ESCMTR. Wash pipe leaking. Wash pipe leaking. Blow Down Top Drive, Service rig, tighten and grease wash pipe. Break circulation. Wash pipe still leaking from top connection. Blow down Top Drive. Remove and inspect Wash pipe.C/O upper O-Ring on wash pipe. Blow down Top Drive. Remove and inspect Wash pipe .C/O upper O-Ring on wash pipe. Wash down 3 bpm F/ 2,300' tag ESCMTR @ 2332' MD.(4.00' deep) Drill cement and ES F/ 2,332' to 2337' MD. Ream through cementer 2x times and trip through clean. Ream while chasing plug f/ 2337' t/ 2623' w/ 10-15K drag until worked through. Rubber observed at shakers. Single in hole W/ 5" 19.5# S-135 NC50 D.P. F/ skate F/ 2,623' to 5,777' where took 8K weight. Filled pipe at 5011'. PUW 190K, SOW 84K. Wash down F/ 5,777' T/ 5,804' 350 GPM, 1080 PSI, 30 RPM, 15-16K TQ, briefly drilled cement stringer at 5,783' with 2-4K WOB. PUW 190K, SOW 84K, ROT 118K. Circulate surface to surface while reciprocating F/ 5,804' T/ 5,763', 400 GPM, 730 PSI, 30 RPM, 15-16K TQ. Place bit at 5,800'. Blow down top drive. R/U to pressure test casing & flood lines. Close upper pipe rams, pump down drill pipe & kill line. Pressure up to 2710 PSI in 101 strokes,'hold for 30 min on chart and bleed off - good test.16.26 bbl pumped, 6.26 bbls bled back. Rig down & blow down. Ream and tag cement at 5822'. Drill cement & shoe track equipment f/ 5822' t/ 5846', 400 GPM, 800 PSI, 30 RPM, 15-18K TQ, 4-6K WOB. Baffle adapter, float collar & float shoe (2' deep to tally) ream each 2x. Clean out rathole to 5948' & drill 20' of new hole to 5968' MD / 4701' TVD, 20' drilled, 58.87hr AROP, 500 GPM, 1020 PSI, 30 RPM, 14-16K TQ, 6K WOB. Pump 30 bbl high vis spacer & displace well to 9.3 ppg BaraDrill-N on the fly. Good 9.3 ppg MW in/out. Slow pump rates & rack back stand to 5927'. Blow down top drive & R/U test equipment. Close upper 2-7/8" x 5-1/2" pipe rams & flood lines.j�prform4QQ--ppg FIT at 5,946' MDJ 4,699' TVD casing shoe with 9.3 ppg mud. Pump down drill pipe & kill line to apply 660 PSI surface pressure. 1.6 bbl pumped, 1.2 bbls bled back. Rig down & blow down. FIT 11.7 ppg 1/19/2022 POOH racking back 5" D.P. F/ 5,931' to 590' MD. No losses. Single in hole W/ 5" D.P. F/ 590' to 1,392' MD. POOH racking back 5" D.P. F/ 1,352' to 590' MD. PJSM UD 10 jnts 5" HWDP, rack back 4 stands W/ Jar. Crain motor and break off 8.5" Bit. Bit Grade 1-1-WT-A-E-1-N-BHA Clean and clear rig floor. Stage FS/ ILS. DGR, PWD on rig floor. PJSM P/U M/U 8.5" RSS HBA 3. 8.5" PDC SK616M-J1 D Bit (0.7777 TFA), 8.5" NRP, Geo-Pilot 7600 XL 25KSI, 6.75" ADR, 8.375" ILS, 6.75" DGR, 6.75" PWD. 6.75" DM, 6.75" TM HOC & 8.375" Integral Blade. Down load MWD. Cont M/U 6.75" NM FS (Non port/ Plunger) 6.75" NM FC, 6.75" NM FS (Non port/ Plunger) 6.75" NM FC, 4 jnts 5" HWDP, 6.5" SLB Hydra Jars & 3 jnt 5" HWDP to 401.59' MD. PJSM Single in BHA 3 W/ 5" 19.5# S-135 NC50 D.P. F/ pipe shed F/ 401' to 5,931' MD. Break in Geo Pilot at 2,307' MD. 3.125" OD Drift. Fill every 2,500'. P/U 177k SLK 90k. PJSM Drain stack and remove riser. Install RCD bearing and stand and set in RCD head. Install clamp and bowl saver. Circ through MPD lines and check for leaks, good. PJSM Cut and slip 13 wraps, 82'. ACCUM 35,320 TM. 891' left on spool. Check Drawwork brakes, all with in spec. SIMOPS Circ to shear mud at 415 gpm, 1,035 psi through MPD, Max Gas 160u. PJSM Service rig. Grease Crown, Blocks, Top Drive, Wash Pipe, IBOP, Drawworks, Spinners and Iron Roughneck. Check sheave wobble EAM on blocks. Had trouble removing cover over sheave sue to being frozen to blocks. RIH F/ 5,931' to 5,968' MD. Establish parameters 450 gpm 1,190 psi 60 rpm, Trq 12-13k ECD 10.12. P/U 195k SLK 89k ROT 117k. Drill 8.5" Production Hole F/5,968 to 6,412' MD (4,724' TVD) Total 444' (AROP 111') 450 GPM/ MPD 450, 1,325 psi, 80-125 RPM, TRQ on 14-15k, TRQ off 13-14k, WOB 4-8k. ECD 10.48 Max Gas 1.654u. P/U 186k, SLK 78k, ROT 115k. MPD 100% open. Distance to WP12: 21.06' 20.55' Low 4.63' Right. 1 concretion for a total thickness of 10' (2.8 % of the lateral). 364' drilled in OBd Sand Daily Disposal to G&I = 766 bbls, total = 8549 bbls. Daily H2O from Lake 2 = 570 bbls. Total H2O from Lake 2 = 7880 bbls. Daily Metal: 0 lb. Total Metal 0 lb. Daily Production loss: 0 bbls. Total Surface loss: 539 bbls. 1/20/2022 Drill 8.5" Production Hole F/6,412 to 6,655' MD (4,747' TVD) Total 243' (AROP 40.5') 500 GPM/ MPD 450, 1,730 psi, 80-120 RPM, TRQ on 15-17k, TRQ off 14- 15k, WOB 6-15k. ECD 10.2 Max Gas 1,590u. P/U 189k, SLK 77k, ROT 113k. MPD 100% open. Back ream full stands. Drill 8.5" Production Hole F/6,655' to 7,375' MD (4,776' TVD) Total 720' (AROP 120') 500 GPM/ MPD 500, 1,650 psi, 120 RPM, TRQ on 16-17k, TRQ off 16k, WOB 6-10k. ECD 10.6, Max Gas 1,655u. P/U 196k, SLK 74k, ROT 114k. MPD 100% open. Back ream full stands. Drill 8.5" Production Hole F/7,375 to 8,025' MD (4,781' TVD) Total 650' (AROP 108.4') 500 GPM/ MPD 500, 1,650 psi, 120 RPM, TRQ on 20-21k, TRQ off 19-20k, WOB 6-9k. ECD 10.69 Max Gas 1.422u. P/U 202k, SLK 66k, ROT 113k. MPD holding 100 psi dynamic 9.85 EMW static 50 psi EMW 9.65 to mitigate shakers running over from gas. Perform clean cycle 2 BU F/ 7,450' to 7,580' MD. Undulating in OBd sand as per Geo. Increase Lubes 0.5% due to trq. Back ream full stands. Drill 8.5" Production Hole F/8,025 to 8,854' MD (4,792' TVD) Total 829' (AROP 138.2') 500 GPM/ MPD 500, 1,850 psi, 120 RPM, TRQ on 19-22k, TRQ off 19-21k, WOB 4-9k. ECD 10.84 Max Gas 1.484u. P/U 214k, SLK 58k, ROT 110k. MPD 100% open, static 50 psi EMW 9.65 to mitigate shakers running over F/ gas, Undulating in OBd sand as per Geo. Back ream full stands. Distance to WP12: 18.07' 4.18' High 17.58' Left. 12 concretions for a total thickness of 64' ( 2.3% of the lateral). Footage OBd-1=257' OBd-2=1,334' OBd-3=1,183'. Total 2,774'. Daily Disposal to G&I = 519 bbls, total = 9068 bbls. Daily H2O from Lake 2 = 280 bbls. Total H2O from Lake 2 = 8160 bbls. Daily Metal: 5 lb. Total Metal 5 lb. Daily Production loss: 0 bbls. Total Surface loss: 539 bbls. 1/21/2022 Drill 8.5" Production Hole F/8,854' to 9,554' MD (4805' TVD) Total 700' (AROP 116.6') 450 GPM/ MPD 500, 1,670 psi, 120 RPM, TRQ on 21-22k, TRQ off 20-21 k, WOB 3-9k. ECD 10.86 Max Gas 1.603u. P/U 250k, SLK 35k, ROT 109k. MPD 100% open, static 50 psi EMW 9.65 to mitigate shakers running over F/ gas, Bring Lube concentration up to +4% to mitigate High Tq. TQ down from 24.5K to 21-22K. Lost Slack Off Wt @ 9429'. Drill ahead in OBd-3 to Fault 1 at 9435' Drill 8.5" Production Hole F/9,554' to 10,220' MD (4844' TVD) Total 666' (AROP 111') 475 GPM/ MPD 475, 1,910 psi, 120 RPM, TRQ on 22k, TRQ off 20-21 k, WOB 6-10k. ECD 11.27, Max Gas 1.589u. P/U 227k, SLK 69k, ROT 113k. MPD 100% open, static 50 psi EMW 9.65 to mitigate shakers running over F/ gas, Regain Slack Off Wt @ 9620'. Reentered OBd-1 at 9660'. Fault 1 is 43' DTN. Drill 8.5" Production Hole F/10,220 to 10,760' MD (4,852' TVD) Total 540' (AROP 90') 500 GPM/ MPD 495, 2,115 psi, 120 RPM, TRQ on 21-22k, TRQ off 20-21 k, WOB 6-8k. ECD 11.4 Max Gas 1.400u. P/U 218k, SLK 62k, ROT 109k. MPD 100% open at 10,385' MD. Appears went out the bottom of OBd-3 at-10,152' MD. Set Inc F/ 87° to 93° at 10,507', 96° at 10,697' and 97° at 10,835' MD to get back into OBd sand. May have crossed Fault #2 at 10,785' MD 12' DTS up to interpretation. Back ream full stands. Drill 8.5" Production Hole F/10,760 to 11,334' MD (4,796' TVD) Total 574' (AROP 95.7') 500 GPM/ MPD 492, 2,250 psi, 110-120 RPM, TRQ on 22-24k, TRQ off 21-22k, WOB 5-9k. ECD 11.78 Max Gas 1.661 u. P/U 220k, SLK 35k, ROT 104k. MPD 100% open. Lost SLK at 11,143' MD. Reenter Obd at 11,058' MD. Undulating as per Geo. Back ream full stands. Distance to WP12: 38.69' 38.55' High 3.21' Right undulating in OBd sand as per Geo. 16 concretions for a total thickness of 84' (1.6 % of the lateral). Fault #1 9,435' 45' DTN. Footage OBd-1=298' OBd-2=1,790' OBd-3=2,041' Total 4,129'. Out of zone 1,131'. Daily Disposal to G&I = 635 bbls, total = 9703 bbls. Daily H2O from Lake 2 = 1140 bbls. Total H2O from Lake 2 = 9300 bbls. Daily Metal: 3 lb. Total Metal 8 lb. Daily Production loss: 0 bbls. Total Surface loss: 539 bbls. Drill 8.5" Production Hole F/11,334 to 11,885' MD (4,768' TVD) Total 551' (AROP 91.8') 525 GPM/ MPD 510, 2,695 psi, 120 RPM, TRQ on 21-23k, TRQ off 19- 21k, WOB 5-9k. ECD 11.89 Max Gas 1843u. P/U 213k, SLK 35k, ROT 102k. MPD 100% open w/Drilling, hold 100 psi connections. Crossed Fault 3 @ 11,735' 6' DTN Drill 8.5" Production Hole F/11,885 to 12,481' MD (4,730' TVD) Total 596' (AROP 99.3') 525 GPM/ MPD 515, 2,325 psi, 120 RPM, TRQ on 23-24k, TRQ off 22-23k, WOB 5-9k. ECD 11.32 Max Gas 1450u. P/U 230k, SLK 35k, ROT 103k. MPD 100% open w/Drilling, hold 100 psi connections. @ 11,910' pump tandem Low WULow Vis, High Wt/ High Vis Sweep with 10% increase at shakers. At 11,950' start 580 bbl dump and dilute, MW 9.3, Vis 43, Lube 4%. Back in zone @ 12,180' Drill 8.5" Production Hole F/12,481' to 12,907' MD (4,688' TVD) Total 426' (AROP 77.5') 525 GPM/ MPD 515, 2,325 psi, 120 RPM, TRQ on 22-23k, TRQ off 22-23k, WOB 5-9k. ECD 11.42 Max Gas 784u. P/U 205k, SLK 35k, ROT 103k. MPD 100% open dynamic, 100 psi static 9.8 EMW. Geologist determined drilling out of zone, decision was made to BROOH F/ 12,907' to-11,588' MD and perform open side track operations. Obtain final survey at 12,907' MD (4,687.86' TVD) 97.24' Inc 3.52' Azi. Shut down monitor well 10 min, static. Shut in MPD 3 min no Press, static. Prepare for BROOH operations. PJSM BROOH F/12,907' to 12,481' MD 520 GPM/ MPD 463, 2,270 psi, 120 RPM, TRQ 20-21 k, ECD 11.39 Max Gas 1,031 u. P/U 206k, SLK 35k, ROT 111 k. MPD 100% open. After further discussion with engineers it was determined that we exited the OBd sand at 11,737' MD (Fault #3) and drilled through OBc and OBb all the way into the base of the Oba sand (wet sand). BROOH F/ 12,481' to 12,290' MD. Perform clean up cycle 3 BU 1 BU per stand for 3 stands. 520 GPM/ MPD 504, 2,335 psi, 120 RPM, TRQ 21-13k, ECD 11.20 Max Gas 91 u. P/U 204k, SLK 55k, ROT 109k. MPD 100% open. Dynamic loss 7 bph. Decision was made to BROOH to surface and run back in to isolate the OBa wet sand. BROOH F/12,290' to 10,705' MD 520 GPM/ MPD 460, 2,130 psi, 120 RPM, TRQ 14-16k, ECD 11.3 Max Gas 93u. P/U 180k, SLK 70k, ROT 111 k. MPD 100% open. Dynamic loss -7 bph. Lost 42 bbls. Distance to WP12: 110.84' 110.72' High 5.09' Left. 18 concretions for a total thickness of 93' (1.3 % of the lateral). Fault #1 9,435' MD Fault #2 10,775' MD Fault #3 11,735' MD. Footage OBd-1=334' OBd-2=2,035' OBd-3=2,326' Total 4,695'. Out of zone 2266' Daily Disposal to G&I = 1362 bbls, total = 11065 bbls. Daily H2O from Lake 2 = 670 bbls. Total H2O from Lake 2 = 9970 bbls. Daily Metal: 3 lb. Total Metal 11 lb. Daily Production loss: 18 bbls Total 18 bbls. Total Surface loss: 539 bbls. 1/23/2022 BROOH F/10,705' to 7,707'MD 500 GPM/ MPD 460, 1700 psi, 120 RPM, TRQ 9-12k, ECD 10.44 Max Gas 412u. P/U 150k, SLK 85k, ROT 115k. MPD 100% open. Dynamic loss -7 bph. Lost 43 bbls. Work through/ream slowly tight spots @ 10,544', 9,580' and 9,450'. BROOH F/7,707' to 5946' MD 500 GPM/ MPD 480, 1610 psi, 120 RPM, TRQ 8-10k, ECD 10.18 Max Gas 121 u. P/U 150k, SLK 92k, ROT 110k. MPD 100% open. Dynamic loss -7 bph. Lost 43 bbls. Reduce pulling speed/RPM bring BHA into the Shoe. No issues. Circulate/Reciprocate f/5,860' to 5,800', pump 50 bbls sweep 300 visc Surface to surface, 30 RPM, 500 GPM, 1615 PSI. Monitor Well for 15 min on Beyond chokes no Pressure Build. R/U and remove MPD RCD Bearing, install trip nipple, Tq clamp, flood lines and verify no leaks. Clean and send Bearing and puller off Rig Floor. PJSM POOH on elevators racking back 5" D.P. F/ 5,867' to 402' MD. Pull 10 stands, no swabbing. Pump dry job. P/U 148k SLK 115k Max Gas 23u Lost 8 bbls for trip. PJSM L/D 5" HW DP, Jar, 2 NM FC, 2 FS. Retrieve rabbit in FS. Remove corrosion ring. Read MW D. L/D ILS, TM, DM, PWD, DGR, ILS & ADR. Static loss 2 bph. PJSM Close Blind Rams. Break off 8.5" Bit, NRP & GeoPilot. Bit Grade 2-4-BT-N-X-1-NO-FM PJSM Clean & clear rig floor. L/D BHA components. R/D Hydraulic elevators. PJSM R/U Weatherford 4.5" 75T YC Elevators. P/U rig up power tongs. Stage 9 ea 4.5" Centralizers. SIMOPS Load and process 4.5" 12.6# L-80 TXP BTC in pipe shed. PJSM P/U M/U Round Nose Shoe, 4.5" jnt W/ 2 cent& 4 SR, Blank jnt W/ 1 cent 2 SR, FC, Checked float, good., 8 jnts 4.5" 12.6# L-80 TXP BTC W/ centralizers each jnt, Landing Collar and 4,5" jnt W/ 1 ea Centralizer & 2 SR. P/U M/U Iso Zone Packer as per Baker Rep onsite to 497.3' MD. Add PAL Mix. RIH 1 stand F/ derrick to 559' MD. P/U 40k SLK 40k. 11 total Cent & 8 SR. Break Circ 2 bpm 50 psi 4 bpm 80 psi 1.5 X liner volume. M/U Trq 6.2k. SIMOPS: C/O Elevators to 5" hydraulic. L/D Weatherford handling Equip. Cont RIH W/ Plug Back Assy W/ 5" 19.5# S-135 NC-50 D.P. F/ derrick F/ 559' to 2,085' MD. Run speed 60-80 f /min. P/U 57k SLK 56k. Lost 5 bbls. Daily Disposal to G&I = 288 bbls, total = 11353 bbls. Daily H2O from Lake 2 = 570 bbls. Total H2O from Lake 2 = 10540 bbls. Daily Metal: 0 lb. Total Metal 11 lb. Daily Production loss: 99 bbls Total 117 bbls. Total Surface loss: 539 bbls. 1/24/2022 Cont RIH W/ Plug Back Assy W/ 5" 19.5# S-135 NC-50 D.P. F/ derrick F/ 2,058' to 5,902' MD (CSG Shoe 5946'). Run speed 60-80 ft/min. P/U 140k SLK 10k. Lost 5 bbls. Circulate bottoms up from 5902', 9 bpm 580 PSI, Rot 5 RPM, 5.5K TQ Cont RIH W/ Plug Back Assy W/ 5" 19.5# 5-135 NC-50 D.P. F/ derrick F/ 5,902' to 7,397' MD. Run speed 60-80 ft/min. P/U 150k SLK 71 k. Set down @ 7397' (Shoe Depth, 6,923' PKR Depth) MU Top drive, establish circulation @ 1 bpm 250 PSI while working pipe. Attempt to work past tight spot. Packed off again. Attempt to regain circulation and free pipe. Work pipe 7,340' to 7,350' MD stage pumps f/.5 bpm to 2.5 bpm working pipe from 71 K to 150K (5') Pump and spot 30 bbl 15% Lube Pill (GoldSeal) around PKR. Work pipe straight pull staging up to 320K (170K over) and pull pipe free. Decision made to POOH P/U clean out BHA & RIH. Pump out of hole at 2 bpm 525 psi (Press Limit 525 psi) F/ 7,350' to 7,128' MD with swabbing. Encountered over pull and pack off at 7,128' MD. Attempted pulling staging up F/ 160k to 320k (170k) over pull. Work string and try to establish movement & Circ F/ 7,130' to 7,134' MD. Was able to SLK down to free movement & regain Circ. F/ 7,132' to 7,139' MD. Stage up Circ F/ 0.5 255 psi to 2 bpm 480 psi. Worked 6-9k Trq into string without any noticeable difference, released Trq. Pulled string at 2-3 ft/min, packed off at 525 psi and broke over at 300k at 7,128' MD. Regained Circ and pump press dropped F/ 525 psi to 180 psi at 1 bpm. Cont pump out of hole at 3-4 bpm 220-263 psi F/0 20%, pull speed 2-15 ft/min F/ 7,108' to 6,856' MD. P/U 145k SLK 86k. Lost 5 bbls for tour. Cont pumping out of hole 4 bpm 220 psi F/ 6,856' to 6,475' MD Pull speed 12-20 ft/min. Pull on elevators F/ 6,475' to 5,900' MD. No swabbing and packer pulled clean through shoe (5,946' MD) P/U 140k SLK 111 k. CBU staging pumps up F/ 4-9 bpm 580 psi. Shut down monitor well 10 min, static. PJSM Pull 5 stands F/ 5,900' to 5,584' MD checking for swabbing, good. Pump Dry job & blow down. Cont POOH on elevators racking back 5" D.P. F/ 5,584' to 559' MD. Verify Iso packer at surface. P/U 41 k SLK 41 k. Lost 11 bbls. Prep to R/U Weatherford. Daily Disposal to G&I = 115 bbls, total = 11468 bbls. Daily H2O from Lake 2 = 280 bbls. Total H2O from Lake 2 = 10820 bbls. Daily Metal: 5 lb. Total Metal 16 lb. Daily Production loss: 36 bbls Total 153 bbls. Total Surface loss: 539 bbls. 1/25/2022 P/U Weatherford 4 1/2" Pipe handling equipment and Power Tongs. Rack Back last stand of DP, pull PKR to surface found Element was left in hole. L/D PKR and 11 jts Tubing including shoe track. R/D Weahterford equipment. R/U 5" DP Handling equipment. Remove Weatherford tools from floor. M/U Clean out BHA w/8.5" Smith Tri cone, 6 3/4" Mtr (1.50 Bend), DM Collar, TM HOC, IBS, 2 ea Flex Collars, 4-HWDP, Jar, 3-HWDP. Total Length 362.86'. RIH P/U 10 jts 5" DP from shed to 680'. TIH out of Derrick from 680' to 2530' P/U 10 jts 5" DP from shed to 680'. TIH out of Derrick from 680' to 2530' Continue TIH out of Derrick from 2530' to 5895'. Parameters @ 5895' before exiting Shoe 450 GPM, 1270 PSI, 40 RPM, 6/7K TQ, P/U 140, SO 11 OK, Rot 125K. TIH on elevators from 5895'. Set down X2 20k at 6,667'. M/U top drive, wash ream down to 6717' with no issues. Continue to TIH on elevators from 6717' to 10,564'. P/U 140K, SO 11 OK Wash down F/ 10,564' to 12,907' MD. 450 gpm 1,680 psi 60 rpm Trq 13-14k F/O 45% Max Gas 651 u. P/U 160k SLK 62k ROT 117k Collecting packer rubber at shakers. Tag on depth. Shut down monitor well 10 min, static. Lost 9 bbls for trip. CBU F/ 12,907' to 12,635' MD (5 stands) 500 gpm 2,300 psi 80 rpm Trq 13-15 Max Gas 509u. P/U 182 SLK 72k SPR. BROOH F/ 12,635' to 10,092' MD 500 gpm 2,100 psi 80 rpm Trq 11-13k F/O 45% Max Gas 321 u. P/U 170k SLK 90k ROT 114k Pull speed 40 ft/min. Lost 11.5 bbls. Daily Disposal to G&I = 57 bbls, total = 11525 bbls. Daily H2O from Lake 2 = 160 bbls. Total H2O from Lake 2 = 10980 bbls. Daily Metal: 0 lb. Total Metal 16 lb. Daily Production loss: 37 bbls Total 190 bbls. Total Surface loss: 539 bbls. 1/26/2022 BROOH F/ 10,092 to 5,895' MD 500 gpm 1,650 psi 80 rpm Trq 7-9k F/O 45% Max Gas 22u. P/U 135k SLK 113k ROT 115k Pull speed 40 ft/min. Lost 11.5 bbls. Rot Rec F/ 5,885' to 5,825 MD Pump 30 bbl 9.4 ppg 300+ Vis sweep, back on time W/ 30% increase at shakers. 525 gpm 1,750 psi 40 rpm Trq 6k F/O 48% P/U 135k SLK 113k ROT 117k. PJSM Cur & slip drilling line. Hang blocks, cut 13 wraps (82') 1013 TM Acc TM 36,337. (809' left on spool) TRQ deadman 180 fUlb. Check brake tolerance, calibrate, check floor and crown saver. PJSM Service rig. Grease crown, wash pipe, IBOP, spinners and TD. Check TD & rotary table oil. PJSM POOH racking 5" D.P. back in derrick F/ 5,885' to 392' MD. Pulled 5 stands no swabbing. Pumped dry job. P/U 73k SLK 70k. Lost 10 bbls. PJSM L/D 7 jnts 5" HWDP, jar, 2 ea NM FC, integral blade, DM & TM, pulled probe. Break 8.5" tri cone of mud motor. Bit Grade 1-1-WT-A-E-2-NO-HP Static loss rate -2 bph. Recovered total 1 & 3/4 5 gal bucket of rubber. Clean and clear rig floor BHA components. PJSM R/U Weatherford 4.5" handling equip. R/U power tongs, C/O Hydraulic to 4.5" 75T 4.5" elevators. PJSM P/U M/U Round Nose Shoe, 4.5" jnt W/ 2 cent& 4 SR, Blank jnt W/ 1 cent 2 SR, FC, Checked float, good., 8 jnts 4.5" 12.6# L-80 TXP BTC W/ centralizers each jnt, Landing Collar and 4,5" jnt W/ 1 ea Centralizer & 2 SR. P/U M/U 4..5" X 5.625" .Iso Zone EC Packer as per Baker Rep onsite to 506.47' MD. Add PAL Mix. RIH 1 stand F/ derrick to 559' MD. P/U 40k SLK 40k Total 11 total Cent & 8 SR.M/U Trq 6.2k. SIMOPS: C/O Elevators to 5" hydraulic. L/D Weatherford handling Equip. Break Circ 4 bpm 54 psi 4 bpm 80 psi through Iso EC Packer. Blow down TD. Cont RIH W/ Plug Back Assy W/ 5" 19.5# S-135 NC-50 D.P. F/ derrick F/ 559' to 5,908' MD. P/U 140k SLK 110k. Run speed 60-80 ft/min. Lost 14 bbls. CBU Obtain parameters prior to exiting csg, 8 bpm 460 psi 5 rpm Trq 5.3k. Blow down TD. Max Gas 23u. Cont RIH W/ Plug Back Assy W/ 5" 19.5# 5-135 NC-50 D.P. F/ derrick F/ 5,908' to 7,050' MD. Run speed 40-60 ft/min. P/U 142k SLK 102k. Lost 2 bbls. Daily Disposal to G&I = 116 bbls, total = 11641 bbls. Daily H2O from Lake 2 = 280 bbls. Total H2O from Lake 2 = 11260 bbls. Daily Metal: 0 lb. Total Metal 16 lb. Daily Production loss: 37 bbls Total 227 bbls. Total Surface loss: 539 bbls. 1/27/2022 Cont RIH W/ Plug Back Assy W/ 5" 19.5# S-135 NC-50 D.P. F/ 7050' to 12906' MD. Run speed 40-60 ft/min. P/U 167k SLK 82k. M/U BOT rot cement head w/ 10' pup. R/U cmt line and pumping equipment. Sym Ops - Rack in HES cementers. Prep contam pill on vac truck (40 bbls). Break circulation and stage up to 4.5 bpm, 612 psi, 24% F/O. Circulate 1.5 string volume (-320 bbls)w/ no losses. Recip pipe 170k up, 78k do w/ pump PJSM, HES wet lines w/ 5 bbls water and PT to 3000 psi (test good). Pump 42 bbls 10# spacer, 2.8 bpm, 450 psi. Type I/II 31 bbls 15.8 cement (1.16 Yield), 2.2 bpm, 450 psi. Release dart (good indication from tattle tale). Park string in tension @ 157k. 4 bbls 15.8 cement. 5 bbls H2O. Turn over to rig. Displace w/ MP#1. 193.4 bbls (Bumped) 9.4 mud, 5 bpm, 670 psi. Latched wiper 10.6 bbls early. Pressured up and held 1500 psi w/ .87 bbls injected in ECP @ .4 bpm before static pump rate and 1500 psi hold (5 min). Continue psi up to 3000 psi while slacking off to down wt 77k. Hold 3000 psi 5 min. Bleed off psi. P/U 4' with no overpull. B/O and L/D cement head and 10' pup. Psi up on string to 500 psi and P/U 8' observing psi dump and indicating good release from pkr assy. TOL @ 12410, BOL @ 12906' MD. CIP @ 15:55 Rack back 5 stands from 12410' to 12081' MD. Drop 5" wiper ball and circulate 2x Btms up at max rate while reciprocating pipe. Pump @ 600 GPM, 1,700Psi. Max gas 230u. Spacer seen at surface. Monitor well 5 min, static. POOH rack back in 5" D.P. F/ 12,081' to 5,405' MD. Pulled 5 stands off bottom, no swab. Pump dryjob. P/U 186k SLK 75k Lost 15 bbls. CBU 1 X at 5,405' MD. 525 gpm 715 psi F/O 48% P/U 135k SLK 110k. Blow down TD. Pump 20 bbls dryjob. Blow down TD. POOH F/ 5,405' to surface. L/D Packer running Assy as per Baker rep onsite. Lost 17 bbls. PJSM Clean and clear rig floor. P/U 5" Test jnt, pull wear ring and install test plug. R/U Pump in sub, 5" TIW, 5" Dart and top drive sub. Flood choke and lines. Perform shell test to 3,000 psi, good Perform BOPE test 250/ 3,000 psi 5 min on chart. Test Annular. Test Annular, IBOP, Mezz Kill, 5" Dart, 5" TIW, CMV 4-15, HCR Kill, Upper VRB Rams (2.875" X 5.5") & Manual Kill. Witnessed waived by AOGCC rep Austin McLeod. Daily Disposal to G&I = 288 bbls, total = 11929 bbls. Daily H2O from Lake 2 = 140 bbls. Total H2O from Lake 2 = 11400 bbls. Daily Metal: 0 lb. Total Metal 16 lb. Daily Production loss: 56 bbls Total 283 bbls. Total Surface loss: 539 bbls. 1/28/2022 Cont test BOPE. Found Test Tee to top drive leak, C/O. F/P #15 greased, passed. Test 250/3,000 psi 5 min on chart. 4.5" & 5" Annular, Manual & HCR Choke, Upper & Lower VBR's Rams (2.875" X 5.5"), CMV 1-3, 1 ea 5" TIW, Blind Ram, Super & Manual Choke 1,600 psi, Draw down Initial Acc 2,900, Man 1,450 Ann 1,250 psi, after Acc1,500, Man 1,500 Ann 1,250. 200 psi 27 sec full 91 sec. NO2 6 bottle Avg 2,333 psi. Test PVT & high/ low level alarms. LEL 20-40 % H2S 10- 20 ppm. Witnessed waived by AOGCC rep Austin McLeod. R/D test Equip. Break down TIW, Dart & side entry sub. Pull test plug and install wear ring. (9 1/16" ID 10 3/4" OD 37" Lgt) RILDS. L/D test jnt. Blow down surface Equip. P/U stage BHA components on rig floor. PJSM P/U M/U 8.5" RSS HBA 3. 8.5" PDC SK616M- J1D Bit (0.7777 TFA), 8.5" NRP, Geo-Pilot 7600 XL 25KSI, 6.75" ADR, 8.375" ILS, 6.75" DGR, 6.75" PWD. 6.75" DM, 6.75" TM HOC & 8.375" Integral Blade. Download MW D. Cont M/U 6.75" NM FS (Non port/ Plunger) 6.75" NM FC, 6.75" NM FS (Non port/ Plunger) 6.75" NM FC, 4 jnts 5" HWDP, 6.5" SLB Hydra Jars & 3 jnt 5" HWDP = BHA length 401.69' MD. PJSM Single in (162 Jnts) 5" 19.5# 5-135 NC50 D.P. F/ pipe shed F/ 402' to 5,867' MD. Break in Geo Pilot at 2,625' MD. 3.125" OD Drift. Fill every 2,500'. P/U 92k SLK 78k. Lost 12 bbls. PJSM Drain stack and remove riser. Install RCD bearing and stand and set in RCD head. Install clamp and bowl saver. Circ through MPD lines and check for leaks, good. PJSM Cut and slip 7 wraps, 44'. ACCUM 36,862, 529 TM. 765' left on spool. Check Drawwork brakes, all with in spec. Check floor & crown saver. SIMOPS Circ 400 gpm, 1,205 psi through MPD, Max Gas 20u. Lost 6 bbls. PJSM Service rig. Grease crown, blocks, washpipe, IBOP, spinners and TD. Check oil in TD & rotary table. Cont RIH 5" D.P. F/ derrick F/ 5,867' to 6,956' MD. P/U 161 k SLK 96k. Lost 2 bbls. Cont RIH 5" D.P. F/ derrick F/ 6,956' to 9,681' MD. Fill D.P. at 8,120' MD. B/D P/U 175k SLK 90k. Lost 6 bbls. Perform sidetrack operations. Start at 9,670. MD Target TF180° W/ 100% deflection, kickoff at 9,681' MD 10 ft/hr ABI Inc 83.70°, reduced deflection to 60% at 9,692' MD. At 9,702' MD 25-30 ft hr Cont target 180' W/ ABI Inc 83.70° reducing deflection to 0% , At 9,710' MD 180' ABI Inc 83.00' showing mother bore at 84.53°. Indicating good separation. Cont maintain 83.70' to-9,800' MD. 500 gpm/ MPD 488, 2,200 psi 120 rpm Trq 15.5-18k WOB 1-3k ROP 10-30, Max Gas 132. P/U 175k SLK 90k ROT 117k. Drill 8.5" Production Hole F/ 9,710' to 9,808' MD (4,832' TVD) Total 98' (AROP 98')500 GPM/ MPD 487, 2,150 psi, 120 RPM, TRQ on 15k, TRQ off 15k, WOB 1-2k. ECD 10.71. Max Gas 350u. P/U 182k, SLK 83k, ROT 117k. MPD 100% open. Back 60'. Daily Disposal to G&I = 39 bbls, total = 11968 bbls. Daily H2O from Lake 2 = 210 bbls. Total H2O from Lake 2 = 11610 bbls. Daily Metal: 0 lb. Total Metal 16 lb. Daily Production loss: 30 bbls Total 313 bbls. Total Surface loss: 539 bbls. 1/29/2022 Drill 8.5" Production Hole F/ 9808' - T/ 10573' MD (4825' TVD) Total 765' (AROP 128')500 GPM/ MPD 490, 2250 psi, 120 RPM, TRQ on 17.5k, TRQ off 16.5k, WOB 4-6k. ECD 10.97. Max Gas 470u. P/U 171 k, S/O 65k, ROT 116k. MPD 100% open. B/R 60'. 1-2 BPH dynamic losses Drill 8.5" Production Hole F/ 10573' - T/ 11 365'MD (4802' TVD) Total 792' (AROP 132')500 GPM/ MPD 486, 2280 psi, 120 RPM, TRQ on 23k, TRQ off 22k, WOB 4-8k. ECD 10.9. Max Gas 388u. P/U 205k, S/O 35k, ROT 113k. MPD 100% open. B/R 60'. 1-2 BPH dynamic losses. Lost do wt @ 11065' Crossed Fault #2 at 10,775' MD with estimated throw of 13' DTN. We faulted from the OBd-3 pay sand, to just slightly below it but for only about 100' before reacquiring sand @ 10880' MD. Dump and dilute 580 bbls -11065' MD. Drill 8.5" Production Hole F/11,365 to 12,096' MD (4,806' TVD) Total 731' (AROP 121.8') 500 GPM/ MPD 485, 2,075 psi, 100-120 RPM, TRQ on 24- 25k, TRQ off 23-24k, WOB 4-8k. ECD 10.7 Max Gas 641 u. P/U 230k, SLK 35k, ROT 113k. MPD 100% open. Cont seeing 1-2 BPH dynamic loss. Crossed Fault #3 at 11,736' MD with estimated throw of 7' DTN. We moved from the base of OBd-3 to the middle of OBd-3 sand. We'll Cont drilling in OBd-3 until-13,300' MD then undulate up to OBd-2. Increase lubes 0.5% to -4.5%. Back ream 60'. Drill 8.5" Production Hole F/12,096 to 12,736' MD (4,818' TVD) Total 640' (AROP 106.7') 500 GPM/ MPD 480, 2,120 psi, 100-120 RPM, TRQ on 25k, TRQ off 24-26k, WOB 4-6k. ECD 10.68 Max Gas 1507u. P/U 278k, SLK 35k, ROT 117k. MPD 100% open. 1-2 BPH dynamic loss. Increase Lube to 5%. Back ream 60'. Distance to WP12: 21.73' 21.67' Low 1.62' Left. 26 concretions for a total thickness of 108' ( 1.6% of the lateral). Fault #1 9,435' MD Fault #2 10,775' MD Fault #3 11,736' MD. Footage OBd-1=295' OBd-2=1,421' OBd-3=4,664' Total 6,380'. Out of zone 344' Daily Disposal to G&I = 823 bbls, total = 12791 bbls. Daily H2O from Lake 2 = 560 bbls. Total H2O from Lake 2 = 12170 bbls. Daily Metal: 4 lb. Total Metal 20 lb. Daily Production loss: 6 bbls Total 319 bbls. Total Surface loss: 539 bbls. 1/30/2022 Drill 8.5" Production Hole F/12,736 to 13,497' MD (4,846' TVD) Total 761' (AROP 126.8') 500 GPM/ MPD 476, 2,180 psi, 100-120 RPM, TRQ on 24k, TRQ off 25k, WOB 5-8k. ECD 10.86 Max Gas 1530u. P/U 255k, SLK 35k, ROT 115k. MPD 100% open. 1-2 BPH dynamic loss. Adjusting parameters due to Trq. Drill 8.5" Production Hole F/13,497 to 14,162' MD (4,890' TVD) Total 665' (AROP 110.9') 500 GPM/ MPD 478, 2,410 psi, 110 RPM, TRQ on 24k, TRQ off 25k, WOB 5-10k. ECD 10.86 Max Gas 1547u. P/U 255k, SLK 35k, ROT 110k. MPD 100% open. 1-2 BPH dynamic loss. Adjusting parameters due to Trq. We crossed fault #4 at 13,881' md, 25'DTS throw. We moved from top of OBd-2 into middle OBd-4. Currently targeting 93°. Expect to be back in OBd-3 pay-14,650' md. At 13,385' MD Pump 30 bbl 200 vis 9.3 ppg on time no increase. Drill 8.5" Production Hole F/14,162 to 14,514' MD (4,878' TVD) Total 352' (AROP 58.7') 525 GPM/ MPD 489, 2,345 psi, 110-120 RPM, TRQ on 20-22k, TRQ off 19-20k, WOB 5-8k. ECD 11.2 Max Gas 1046u. P/U 190k, SLK 48k, ROT 106k. MPD 100% open. 5-10 BPH dynamic loss. Adjusting parameters due to Trq. Encountered trq spike and slight pack offs F/ 14,395' to 14,000' MD reduced to 80 rpm, 450 gpm 1,950 psi adjusting WOB 2-15k. Reentered OBd3 at 14,346' MD. At 14,514' MD Geology reevaluating logs, determined to continue drilling. Targeted 91.5° Inc changed to 89..5° inc. Drill 8.5" Production Hole F/14,514 to 14,825' MD (4,889' TVD) Total 31 V (AROP 51.8') 525-500 GPM/ MPD 489-440, 2,620 psi, 110-120 RPM, TRQ on 22-24k, TRQ off 20-21 k, WOB 6-9k. ECD 11.35 Max Gas 1369u. P/U 195k, SLK 35k, ROT 111 k. MPD 100% open. 5-10 BPH dynamic loss. At 14,590' MD Pump 30 bbl 30 vis 9.3 ppg, 30 bbl 300+ Vis 9.3 time 10% increase. At 14,648' MD Geology reevaluating logs, determined to continue drilling targeting 88° Inc. Appears went out the top of OBd sand at 14,568' MD. Target 84' Inc. Seeing poor detection F/-14,648' MD Re shoot 14,825' MD. Over the last 150' Beyond flow out showing a 14% loss in returns. Trouble shoot mud pumps, MPD and GeoSpan. Found washout in GeoSpan. Rack back stand and blow down surface Equip. C/O GeoSpan. Reset tools and check calibration. Distance to WP12: 97.11' 97.02' Low 4.02' Right. 36 concretions for a total thickness of 138' ( 1.5% of the lateral). Fault #1 9,435' Fault #2 10,775' Fault #3 11,736' Fault #4 13,881' MD. Footage OBd-1=326' OBd-2=1,841' OBd-3= 5,645' Total 7,812'. Out of zone 1,074' Daily Disposal to G&I = 692 bbls, total = 13483 bbls. Daily H2O from Lake 2 = 1080 bbls. Total H2O from Lake 2 = 13250 bbls. Daily Metal: 4 lb. Total Metal 24 lb. Daily Production loss: 42 bbls Total 361 bbls. Total Surface loss: 539 bbls. 1/31/2022 Drill 8.5" Production Hole F/14,825 to 14932' MD (4776' TVD) Total 107' (AROP 107') 500 GPM/ MPD 485, 2630 psi, 110-120 RPM, TRQ on 22k, TRQ off 19-20k, WOB 8k. ECD 11.45 Max Gas 280u. P/U 202k, S/O NA, ROT 113k. MPD 100% open. 5-10 BPH dynamic loss. Stop drilling and discuss options with town due to out of zone interval. Decision made to sidetrack. Obtain final svy and SPR's. BROOH F/ 14932' - T/ 14260' MD. at full drilling rates. Wash and ream back to btm without issue. Decision made to continue drilling ahead dropping in section to finger print geological structure and minimize uncertainty for upcoming sidetrack point. Same parameters as above. Target 80° Inc. Cont Drill 8.5" Production Hole F/14932 - T/ 15056' MD. 500 GPM/ MPD 485, 2705 psi, 110 RPM, TRQ on 22k, TRQ off 20k, WOB 8k. ECD 11.5 Max Gas 671 u. P/U 195k, S/O 44k, ROT 110k. MPD 100% open. 5-10 BPH dynamic loss. Drill 8.5" Production Hole F/15056 - T/ 15216' MD (4949' TVD) Total 160' (AROP 64') 500 GPM/ MPD 485, 2705 psi, 110 RPM, TRQ on 22k, TRQ off 20k, WOB 8k. ECD 11.5 Max Gas 671 u. P/U 195k, S/O 44k, ROT 110k. MPD 100% open. 5-10 BPH dynamic loss. Decision made to sidetrack. BROOH F/ 15216' - T/ 14270' MD (Sidetrack point). 445 gpm, 2720 psi, Tq on 19k, 11.5 ECD, 253u max gas. P/U 185k, S/O 45k, 110k Rot. No issues observed during backream operations. Trough 3X F/ 14270' - T/ 14300' MD for sidetrack w/ 180' TF (100% deflection). 500 gpm, 2740 psi on, 120 rpm, 19.5k tq. 11.6 ECDs. P/U 185k, S/O 45k, 110k Rot. Max gas 296u Perform side track operations. F/ 14,300' to 14,322' MD Cont 180' TF 100% Def ABI inc 91.5° ROP 15 f /hr. At 14,310' MD adjust TF 90° R 70% Def to 14,322' MD. Ream 3X no Pumps & Rot. Check shot at 14,322' MD original bore 92.25° inc, new 90.32' inc, good separation. Same parameters. Drill 8.5" Production Hole F/14,322 to 14,705' MD (4951' TVD) Total 383' (AROP 85.V) 500 GPM/ MPD 488, 2695 psi, 110 RPM, TRQ on 21-22k, TRQ off 19-20k, WOB 6-9k. ECD 11.47 Max Gas 1241u. P/U 195k, SLK 35k ROT 118k. MPD 100% open. Back ream 60' Drill 8.5" Production Hole F/14,705 to 15,342' MD (4,814' TVD) Total 637' (AROP 106.2') 500 GPM/ MPD 490, 2760 psi, 110 RPM, TRQ on 24-26k, TRQ off 22k, WOB 8-12k. ECD 11.7 Max Gas 1270u. P/U 208k, SLK 35k ROT 108k. MPD 100% open. Back ream 60' Re -correlated fault #4 to 122' DTS , putting the wellbore in the lower OBf sand. ST @ 14270' and targeted 97° Inc to regain OBd sand. Dip -87.5° leveled off at 90' reentered OBd at 15,015' MD. Distance to WP12: 42.51' 36.24' Low 22.23' Right. PB1 12,907' to 9,670' MD PB2 15,216' to 14,270' MD 35 concretions for a total thickness of 127' ( 1.4% of the lateral). Fault #1 9,435' Fault #2 10,775' Fault #3 11,736' Fault #4 13,881' MD 122' DTS. Footage OBd-1=296' OBd-2=1,841' OBd-3= 5,620' Total 7,756'. Out of zone 1,478' Daily Disposal to G&I = 462 bbls, total = 13945 bbls. Daily H2O from Lake 2 = 780 bbls. Total H2O from Lake 2 = 14030 bbls. Daily Metal: 1 lb. Total Metal 25 lb. Daily Production loss: 38 bbls Total 399 bbls. Total Surface loss: 539 bbls. 2/1/2022 Drill 8.5" Production Hole F/15342' - T/ 16042' MD (4,852' TVD) Total 700' (AROP 117') 500 GPM/ MPD 486, 2910 psi, 100 RPM, TRQ on 24-26k, TRQ off 24k, WOB 4-9k, ECD 11.8 (9.3 MW), Max Gas 1238u. P/U 220k, S/O NA, ROT 110k. MPD 100% open. Back ream 60' Pump 40 bbls 9.3 ppg / 250 vis sweep @ 15350' MD. Came back 25 bbl late with 10% increase in cuttings. Drill 8.5" Production Hole F/ 16042' - T/ 16700' MD (4,884' TVD) Total ' (AROP 110') 500 GPM/ MPD 486, 2930 psi, 100 RPM, TRQ on 24-26k, TRQ off 24k, WOB 4-9k, ECD 11.8 (9.3 MW), Max Gas 1006u. P/U 245k, S/O NA, ROT 109k. MPD 100% open. Back ream 60'. Seeing 3-5 bph dynamic. Drill 8.5" Production Hole F/ 16,700' to 17,310' MD (4,894' TVD) Total 610' (AROP 101.7') 500 GPM/ MPD 485 2,985 psi, 100 RPM, TRQ on 25-26k, TRQ off 24-25k, WOB 4-8k, ECD 11.7 (9.3 MW), Max Gas 998u. P/U 245k, S/O N/A ROT 108k. MPD 100% open. Back ream 60'. Seeing 6-12 bph dynamic. Lost 143 bbl Drill 8.5" Production Hole F/ 17,310' to 17,334' MD (4,894' TVD) 500 GPM/ MPD 486 2,910 psi, 100 RPM, TRQ on 24- 26k, TRQ off 24k, WOB 4-9k, ECD 11.8 (9.3 MW), Max Gas 805u. P/U 200k, S/O N/A ROT 110k. MPD 100% open. Back ream 60'. Seeing 8-15 bph dynamic. Found weep holes leaking on both pumps. C/O wear plate, liner and swab on MP #1 Pod 1 & MP #2 Pod 2. Rot Rec 14,334' to 17,303' MD 210 GPM/ MPD 198 930 psi, 40 RPM, TRQ 24k ECD 11.69 (9.3 MW), Max Gas 602u. P/U 242k, S/O N/A ROT 106k. Dynamic loss 15 bph. Drill 8.5" Production Hole F/ 17,334' to 17,691' MD (4,917' TVD) Total 357' (AROP 89.3') 475 GPM/ MPD 459 2,710 psi, 90-100 RPM, TRQ on 25-27k, TRQ off 25k, WOB 6-8k, ECD 11.6 (9.3 MW), Max Gas 1102u. P/U 242k, S/O N/A ROT 111 k. MPD 100% open. Back ream 60'. Dynamic loss -15 bph Distance to WP12: 16.93' 13.81' Low 9.79' Left. PB1 12,907' to 9,670' MD PB2 15,216' to 14,270' MD 38 concretions for a total thickness of 143' ( 1.2% of the lateral). Fault #1 9,435' Fault #2 10,775' Fault #3 11,736' Fault #4 13,881' MD 122' DTS. Footage OBd-1=533' OBd-2= 3,144' OBd-3= 6,459' Total 10,136'. Out of zone 1,478' Daily Disposal to G&I = 837 bbls, total = 14782 bbls. Daily H2O from Lake 2 = 1040 bbls. Total H2O from Lake 2 = 15070 bbls. Daily Metal: 0 lb. Total Metal 25 lb. Daily Production loss: 143 bbls Total 542 bbls. Total Surface loss: 539 bbls. 2/2/2022 Circulate and condition mud RottRecip @ TD 17691' MQ(4916' TVD). Pump tandem sweep 35 bbl ea Lo vis/wt, Hi vis/wt. Came back 30 bbls late w/ 10% increase in cuttings. 500 gpm, 2975 psi, 90-110 rpm, 25k tq. Dynamic losses 15 BPH. Max gas 1199u. Screen up to all 200's. Continue circulating hole clean @ TD until 1400 hrs. PJSM, Displace wellbore over to 9.3 Quikdril brine (2% lubes). Disp with 3x 40 bbl Sapp pills with 20 bbl Quikdril spacers between. Chase with Quikdril. Observed 3-5k tq increase on btm with 28k max and stalling. Reduced rpm's to 60-80/25k tq Displacement pump rates were reduced to allow enough time for Vac/SS trucks to demob and mob with limited access to staging area and address MP 2 / Pod 1 weep hole. P/U 248k, S/O NA, Rot 111 k. Disp @ 295 gpm, 760 psi, 60 rpm, 25k tq. Monitor well, static. Shut in Beyond chokes and verify with no pressure build. Drop drift. BROOH from 17691' to 16614' at 315 gpm, 945 psi, 120 rpms, 25Kft-Ibs. Pull at 4-5 fpm, due to reduced pump rate while changing out pod 1 on MP 2. BROOH from 16614' to 16350' at 500 gpm, 2100 psi, 120 rpm, 23-16Kft-Ibs. ECD 10.5 ppg EMW with 9.3 ppg Quickdril. PUW 211 K, ROTW 115K. max gas 219U. Cont. to BROOH from 16,350' to 14,687', at 500 gpm, 2020 psi, 120 rpms, 22-25Kft-Ibs, Max gas 548U, ECD 10.54 ppg with 9.3 ppg drilling fluid, PUW 195K, SOW N/A, ROTW 109K. Pull speed 15-20 fpm, slowing to 2-10 fpm at 15,000' due to erratic tq and slight packoffs (out of zone). Distance to WP12: 14.98' 12.76' Low 7.83' Left. PB1 12,907' to 9,670' MD PB2 15,216' to 14,270' MD 38 concretions for a total thickness of 143' ( 1.2% of the lateral). Fault #1 9,435' Fault #2 10,775' Fault #3 11,736' Fault #4 13,881' MD 122' DTS. Footage OBd- 1=533' OBd-2= 3,275' OBd-3= 6,459' Total 10,267'. Out of zone 1,478' Daily Disposal to G&I = 2219 bbls, total = 17001 bbls. Daily H2O from Lake 2 = 480 bbls. Total H2O from Lake 2 = 15550 bbls. Daily Metal: 0 lb. Total Metal 25 lb. Daily Production loss: 296 bbls Total 838 bbls. Total Surface loss: 539 bbls. 2/3/2022 Cont. to BROOH from 14687' to 13386' at 500 gpm, 1950 psi, 120 rpm, 15-17Kft-Ibs, max gas 548U ECD 10.5 ppg with 9.3 ppg Quickdril-N. Pull 2-25 fpm as hole dictates, with slight pack -offs and erratic TQ from 14687' to 13860' (out of zone). PUW 195K, SOW N/A, ROT 109K. Tripped back thru sidetrack point @ 14270' to confirm clean sidetrack point for upcoming liner run (confirmed by ABI). Loss rate-10bpm. Cont. BROOH from 13386' to 10690', 500 gpm, 1750 psi, 120 rpms, 13- 15Kft-Ibs. Max gas 380U. ECD 10.2 ppg with 9.3 ppg Quickdril-N. Pull speed 25-35 fpm. PUW 168K, SOW 85K, ROTW 115K. Loss rate 10 bph. Cont. BROOH from 10690' to 7774', 500 gpm, 1640 psi, 120 rpms, 10-11 Kft-Ibs. Max gas 487U. ECD 10.2 ppg with 9.3 ppg Quickdril-N. Pull speed 25-35 fpm. PUW 151 K, SOW 96K, ROTW 121 K. Tripped back thru sidetrack point @ 9681' to confirm clean sidetrack point for upcoming liner run (confirmed by ABI). Loss rate-10bpm. Encounter erratic torque and slight pack offs from 9493' to 9429' (fault #1), slow pulling speed and work through multiple times. Shut down rotary and trip though without issue. Cont. to BROOH from 7774' to 5931' at 500 gpm, 1575 psi, 120 rpms 8-10Kft-Ibs, max gas 318U, ECD 10.02 ppg with 9.3 ppg Quickdril-N. Pulling 10-25 fpm as hole dictates slow pulling speed to 0-3 fpm from 6654' to 6605' due to erratic tq and slight packoffs. Slow rotary to 40 rpms as BHA comes through shoe with 3-51K bobble and slight packoffs. PUW 145K, SOW 100K, ROTW 120K. Daily Disposal to G&I = 228 bbls, total = 17229 bbls. Daily H2O from Lake 2 = 300 bbls. Total H2O from Lake 2 = 15850 bbls. Daily Metal: 5 lb. Total Metal 30 lb. Daily Production loss: 216 bbls Total 1054 bbls. Total Surface loss: 539 bbls. 2/4/2022 Circulate and condition Rot/Recip @ 5931' MD. Pump tandem 30 bbl sweep - 8.2 ppg, 32 vis followed by 9.3 ppg, 200 vis. Came back on time with 25% increase in cuttings. 500 gpm, 1630 psi, 80 rpm, 6.5k tq. 64u Max Gas, 10 ECD w/ 9.3 MW. P/U 140k, S/O 105k, Rot 120k. Monitor well (static). PJSM, Pull RCD and install trip nipple. B/D TDS and Geo Span. R/D same. L/D RCD head and associated equipment. Grease and inspect crown sheaves. Svc and inspect TDS. Check cradle for cracks (none found). Check gear oil (ok), Inspect inside "J" box (ok). Remove racking board saver and bale angle sensor. POOH laying down 5" NC50 Drill pipe F/ 5931' - T/ 2604' MD. P/U 95k, S/O 85k. Cull DP for Cat IV inspection (hard band). Continue POOH laying down 5" drill pipe F/ 2604' - 401' MD (BHA). L/D 8.5" RSS BHA assy. B/O and L/D BHA HWDP w/jars, Flex DCS. Read MWD. B/O and L/D smart tools. Minor damage on ILS. Bit graded 4,1,LT, N,X,I,BT,TD. 19 bbl loss for total trip. 3 bph static loss rate. Clean and clear BHA components from rig floor. M/U johnny whacker to 1 std of 5" DP. RIH with excess 5" out of derrick to make room for Weatherford casing equipment to 5791', PUW 145K, SOW 108K. Calc Displacement 48 bbls actual 42 bbls. Monitor well, observe slight less. Pump 10 bbls corrosion inhibited dry job. B/D top drive. POOH L/D drill pipe from 5791' to surface, culling out joints for Cat V inspection. Cut and slip 75' of drilling line. Monitor well on trip tank 3.7 bph loss rate. Service rig: grease and inspect crown sheaves, grease blocks and top drive. Rig up to RIH with 6-5/8" slotted liner. M/U safety joint. remove hydraulic elevators and install 6-5/8" elevators. Rig up Weatherford power tongs. Verify pipe count. Mobilize centralizers to rig floor. RIH with 6-5/8", L-80, H563 slotted liner as per detail to 446', TQ connections to 7,100 ft-Ibs, installing centralizers every joint. PUW 46K, SOW 42K. Daily Disposal to G&I = 114 bbls, total = 17343 bbls. Daily H2O from Lake 2 = 280 bbls. Total H2O from Lake 2 = 16130 bbls. Daily Metal: 0 lb. Total Metal 30 lb. Daily Production loss: 101 bbls Total 1155 bbls. Total Surface loss: 539 bbls. 2/5/2022 Cont. to RIH with 6-5/8", 20#, L-80, H563 slotted liner as per detail from 446' to 7636'. TQ connections to 7100 ft-Ibs, installing centralizers as per tally. No issues exiting casing show, observe 5-12K drag in open hole. PUW 138K, SOW 88K. Cont. to RIH with 6-5/8", 20#, L-80, H563 slotted liner as per detail from 7636' to 11,932'. TQ connections to 7100 ft-Ibs, installing centralizers (204 total)as per tally. PUW 168K, SOW 70K. M/U Welltec packers as per tally with 5.5" joints between, Bakerlok all joints between and above packers. C/O pipe handling equipment and M/U Baker SLZXP liner hanger. Obtain parameters, 2 bpm 60 psi, Set TQ limiter at 6500 ft-Ibs, able to rotate 1 rpm in downstroke. Calculated displacement 29.9 bbls, actual 12.9 bbls. No issues running Cont. to RIH with 6-5/8" slotted liner conveyed on HW DP, drifting and picking up from shed from 11, 932'. Slow running speed at 14,270 (ST #2) to 14,363'. At 15,086', set down. Work pipe up to 40K over and setting down 70K. Set Tq limiter to 6500ft-Ibs and rotate 1-3 rpms in downstroke. Work pipe down to 15,216', with some effort. Cont. to work pipe at 15,216' (bottom of sidetrack 2), without any progress. PUW 270K, SOW 105K. Calc displ 58 bbls, actual 37 bbls. Discuss options with engineer, Cont. to work pipe to attempt and verify if in sidetrack hole. Work pipe total of 3 hrs with no progress with 70K set down, increase Tq limiter to 10Kft-Ibs, 4 bpm 437 psi. POOH from 15,216' to 14367'. Tight at 15,193' 15148', 15100' work pipe up to 80K overpull (Welltec Packers weld weak point) with 4 bpm 430 psi. Observe pipe pull tight every -40-43' work pipe with 20-50K. PUW 240K, SOW 118K Daily Disposal to G&I = 57 bbls, total = 17400 bbls. Daily H2O from Lake 2 = 0 bbls. Total H2O from Lake 2 = 16130 bbls. Daily Metal: 0 lb. Total Metal 30 lb. Daily Production loss: 76 bbls Total 1231 bbls. Total Surface loss: 539 bbls. 2/6/2022 Continue POOH w/ 6-5/8" liner F/ 14347' - T/ 14241' MD. Kelly up and rotate down 1-3 rpm, 9.2k tq slowly @ 1-2 fpm, 121 k rot wt dn. Set down 13k @ 14275' MD. P/U to 165k and slack off to 105k with 9.2k tq. Observed wt come back with 120k. Continue slowly rotate down tagging up again @ 14305' MD Presumably junction of sidetrack @ 14305' MD. P/U to 180k then S/O to 103k with 9.2k working tq down to shoe. Observed wt come back with 120k do while slowly rotating. Continue rotate down to 14370' with do wt ranging from 60-130k (ratty). Maintain 3 bpm, 250 psi during all sidetrack operation B/D TDS. Continue running 6-5/8" Hydril 563, 20#, L-80 slotted liner conveyed on 5" NC50 49.5# HW DP F/ 14370' tolfinal set depth of 17691' MD. 135k dn, P/U to 350k max with no break over. 55 bbl loss for liner run. Circ 1x DP vol @ 3 bpm, 460 psi. Parkin liner in tension 280k up. Drop 1" phenolic setting ball (BOT) and pump down @ 3 bpm slowing to 1.5 bpm @ 600 stks (843 calc to bump). Ball on seat @ 619 stks. Psi up to 1800 psi / 3 min hold, Psi up to 2150 and observed shift/3 min hold. Psi up to 3500 psi and swap to test pump. Continue psi up to 4990 psi, observe shift and psi dump indicating4SLZ6P set. S/O to 200k then P/U to 340k (not release from Iiner).Attempt to left hand off (no go after 23 min). B/O and blowdown TDS before continuing to "E" off liner hanger. Temp -34' F Continue left hand operations to release from liner hanger as per Baker rep Kris Cottingham. work 15-17k tq (left and right) working pipe 340k to 170k. Released from liner with 235k free up wt (Pick up 2'). TOL @--5770.24' MD R/U and test IA against SLZXP with 1500 psi, 10 min hold / Chart and record (test good] R/D test equipment, B/D same. POOH laying down 2 jts to clear LRT cup from liner top. PJSM, Displace 9-5/8" casing over @ 5770' MD to clean 9.3 corrosion inhibited brine. 340 gpm, 1360 psi. Pump a total of 365 bbls. B/D surface equipment. Monitor well (2-4 bph static loss rate). Pump 20 bbls dry job, BD top drive. POOH laying down HW DP from 5745' to surface. L/D liner running tool (Left hand release sheared). Calc displ 98.6 bbls, actu 38.7 bbls. Clean and clear rig floor. P/U and breakdown 6-5/8" safetyjoint. M/U Johnny whacker. RIH with excess drill pipe from derrick to 5404'. PUW 145K, SOW 105K. Calc disp 19.6 bbls, actual 15.1 bbls Monitor well, slight losses. Pump corrosion inhibited dry job. POOH from 5404' to 318', laying down drill pipe. Cull out pipe for Cat 5 inspection. RIH with excess drill pipe from derrick from 318' to 954'. P/U 68K, S/O 56K. POOH Laying down drill pipe from 954' to 573'. Cull pipe for Cats inspection. P/U 58K, S/O 54K. Daily Disposal to G&I = 57 bbls, total = 17457 bbls. Daily H2O from Lake 2 = 0 bbls. Total H2O from Lake 2 = 16130 bbls. Daily Metal: 0 lb. Total Metal 30 lb. Daily Production loss: 124 bbls Total 1355 bbls. Total Surface loss: 539 bbls. Hilcorp Energy Company Composite Report Well Name: PBW Z-220 Field: Prudhoe Bay West County/State: , Alaska API #: 50-029-23705-00-00 Act Ops Summary 2/7/2022 Cont to L/d drill pipe from 573' to surface. Cull pipe out for Cat 5 inspection.,Pull wear ring. M/U Johnny whacker and flush BOP. Blow down top drive.,Drain stack, Shut blind rams. Bleed down accumulator. C/O UPR's to 7" solid bodies.,P/U 7" testjoint. M/U test plu and set. Flood lines. Test 7" UPR's 250/3000 psi. AOGCC Brian Bixby waived witness,Rig up to RIH with 7" tie -back string. C/O elevators, Bring 7" handling equipment to rig floor. R/U power tongs.,RIH with 7", 26#, L-80, H563 tie back string as per detail to 96'. TQ turn connections to 9400 ft-Ibs. Trouble shoot hydraulics on power tongs. C/O power tongs.,Cont. to RIH with 7", 26#, L-80, H563 tie back string as per detail from 96' to 3610'. After 5 joints troubleshoot hydraulics on power tongs., again. TQ gauge and load cell on power tongs was not functioning correctly. C/O. POOH checking TQ and threads - good.,Cont. to RIH with 7", 26#, L-80, H563 tie back string as per detail from 361 0'andbp-go at 5775.04'. TQ connections to 9400 ft-Ibs. PUW 158K, SOW 110K. Calc disp 53.2 bbls, actu 21.2 bbls.,Calculate space -out (1.17' off no go). L/D 3 joints, p/u 4 space out pups and full joint. M/U hanger and landing joint. RIH and land hanger. M/U circulating equipment. Pressure up to 400 psi, pick up to expose ports on Bullet Seals, observe pressure drop.,Spot and rig up litte red services to 9-5/8" x 7" annulus. PT lines to 2500 psi - good.,Freeze protect 9-5/8" x 7" annulus. Little Red pump 57 bbls diesel at 1 bpm (limited due to heating diesel under extreme cold) ICP 214 psi, FCP 400 psi.,Strip through annular and land tubing. R/D circulating equipment. L/d landing joint. P/U working single and M/U packoff running tool/packoff. Set packoff, RILDS. PT packoff void 500/5000 psi for 10 minutes - good.,Rig up LRS and test pump. Flood lines. PT 9-5/8" x 7" IA to 1500 psi for 30 minutes - aoc& 1.7 bbls pumped 1.6 bbls back. R/D testing equipment.,Rig up to RIH with upper completion. R/U Weatherford power tongs, C/O elevators. Bring air slips to rig floor. R/U TQ turn. Verify pipe count.,P/U Mule shoe, perform dump test on power tongs. RIH with 4-1/2", 12.6#, L-80, VamTop upper completion as per tally from surface to 326'. P/U 40K, S/O 42K. Daily Disposal to G&I = 225 bbls, total = 17682 bbls. Daily H2O from Lake 2 = 40 bbls. Total H2O from Lake 2 = 16170 bbls. Daily Metal: 0 lb. Total Metal 30 lb. Daily Production loss: 78 bbls Total 1433 bbls. Total Surface loss: 539 bbls. 2/8/2022 Cont. to RIH with 4-1/2", 12.6#, L-80, Vam Top Gas lift completion as per detail from 326' to 5418'. Tq Turn connections to 4400 ft-Ibs. P/U 90K, S/O 72K. Cacl disp 22.8 bbls, Actual 12.7 bbls.,Cont. to RIH with 4-1/2", 12.6#, L-80, Vam Top Gas lift completion as per detail from 5418' to 5830'. Tq Turn connections to 4400 ft-Ibs. P/U 92K, S/O 74K. Cacl disp 2.5 bbls, Actual 1 bbls.. 11.6 bbl loss for total trip.,M/U hanger and landing jt. Land out on final set depth 5850' MD. RILDS. 39k string wt on hanger. Drop ball and rod. Rig up high pressure pumping equipment.,Purge lines. pressure up on tubing to 3500 psi @ 1/4 BPM, observed lull @ 2100 psi indicating packer set. Continue slowly walking psi up to 3500 psi.lT-Tbg to 3500 psi/30 MTMT i?' P;d-. Bleed tbg down to 2000 psi. MIT -IA to 3500 psi/30 minutes - goody Bleed off tubing and observe GLM shear 1500 psi. Pumped total 3 bbls, 3 bbls bled back.,Rig down testing equipment. Install TWC.,Flush surface equipment with heated soap pill, through top drive, BOP stack, kill and choke lines. Blow down lines., De -energize accumulator. C/O UPR's from 7" to 2- 7/8" x 5-1/2" VBRs. Inspect cavities.,N/D BOP. remove hole fill line and Beyond 1502 components. Loosen MPD clamp and remove riser. Remove Beyond lines, drip pan, choke and kill lines. Hook up bridge cranes and remove cross chains. Break BOPE Bolts. Pick up stack and rack back on pedestal. Daily Disposal to G&I = 404 bbls, total = 18,086 bbls. Daily H2O from Lake 2 = 240 bbls. Total H2O from Lake 2 = 16410 bbls. Daily Metal: 0 lb. Total Metal 30 lb. Daily Production loss: bbls Total 1462 bbls. Total Surface loss: 539 bbls. 2/9/2022 N/U 5M 11" FMC dry hole tree. Tq flanges and test void. 500/5000 10 min hold on ea (test good), Test tree 250/5000 w/ 5/15 min hold (test good). R/D test equipment. Pull TWC.,R/U " U" tube pumping equipment on tree. R/U LRS. Flood lines and P/T 2500 psi (good). Pump 78 bbls diesel do IA @ 1 bpm, 300 ICP, 550 FCP. R/D pumping equipment and release LRS. Allow diesel to " U" tube 1 hour. Shut in all valves and secure well.,PJSM, Clean BOP stack, tree and cellar box for handover. Perform EAM on skate, koomey, gens, IR prior to release. Continue cleaning pits. Inspect pumps. R/D floor and prep for move. Release from Z- 220 at 06:00. Final Report. Hilcorp Energy Company CASING & CEMENTING REPORT Lease & Well No. Date Run 15-Jan-22 County State Alaska Supv. J Lott / C Demoski CASING RECORD Surface V TO 5,948.00 Shoe Depth: 5,946.00 PBTD: 5,831.45 No. As. Delivered No. Jts. Run No. Jts. Returned PBW Z-220 Ftg. Delivered Ftg. Run Ftg. Returned Length Measurements W/O Threads Ftg. Cut A 32.19 Ftg. Balance RKB 26.79 RKB to BHF RKB to CHF RKB to THE Casing (Or Liner) Detail Setting Depths Jts. Component Size Wt. Grade THD Make Length Bottom Top 1 Shoe 103/4 TXP Innovex 1.59 5,946.00 5,944.41 1 Casing 9 5/8 40.0 L-80 TXP 78.84 5,944.41 5,865.57 1 Float Collar 103/4 TXP Innovex 1.46 5,865.57 5,864.11 1 Casing 9 5/8 47.0 L-80 TXP 31.09 5,864.11 5,833.02 1 Baffle Adapter 103/4 TXP Halliburton 1.41 5,833.02 5,831.61 84 Casing 9 5/8 40.0 L-80 TXP 3,482.92 5,831.61 2,348.69 1 Casing Pup Joint 9 5/8 40.0 L-80 TXP 17.37 2,348.69 2,331.32 1 ES Cementer 103/4 TXP Halliburton 2.81 2,331.32 2,328.51 1 Casing Pup Joint 9 5/8 40.0 L-80 TXP 17.58 2,328.51 2,310.93 2 Casing 9 5/8 47.0 L-80 BTC 77.38 2,310.93 2,233.55 1 Casing XO Joint 9 5/8 47.0 L-80 VAM 27.87 2,233.55 2,205.68 53 Casing 9 5/8 47.0 L-80 VAM 2,173.49 2,205.68 1 Cut Casing Joint 9 5/8 47.0 L-80 VAM 32.19 32.19 Csg Wt. On Hook: 365,000 Type Float Collar: Innovex No. Hrs to Run: 19 Csg Wt. On Slips: 40,000 Type of Shoe: Innovex Casing Crew: Weatherford Rotate Csg X Yes No Recip Csg X Yes _ No 30 Ft. Min. 9.5 PPG Fluid Description: Spud Mud Liner hanger Info (Make/Model): Liner top Packer?: _Yes -No Liner hanger test pressure: Floats Held X Yes No Centralizer Placement: 144 total joints of 9-5/8" ran, two pup joints and one 10.81' cut joint. 75 total 9-5/8"x12-1/4" centralizers ran and 9 stop rings installed. Two centralizers on shoe joint and one each to joint #25. Every other joint to joint #69. Six centralizers installed beneath and six above the ES cementer at 2328'. Centralizers installed every third joint from joint #96 to #141 CEMENTING REPORT Shoe @ 5946 FC @ 5,863.95 Top of Liner Preflush (Spacer) Type: Tuned Spacer Density (ppg) 10 Volume pumped (BBLs) 57 Lead Slurry Type: EconoCem Type 1/11 Sacks: 454 Yield: 2.35 Density (ppg) 12 Volume pumped (BBLs) 189 Mixing / Pumping Rate (bpm): 4.5 Tail Slurry w Type: HalCem Type 1/11 Sacks: 398 Yield: 1.16 F Density (ppg) 15.8 Volume pumped (BBLs) 80 Mixing / Pumping Rate (bpm): 4.5 y Post Flush (Spacer) rc Type: Density (ppg) Rate (bpm): Volume: LL Displacement: Type: Spud Mud Density (ppg) 9.5 Rate (bpm): 6 Volume (actual / calculated): 440.9/436.5 FCP (psi): 1200 Pump used for disp: Rlg Bump Plug? X Yes No Bump press 1700 Casing Rotated? X Yes _No Reciprocated? X _ Yes _ No % Returns during job 83 Cement returns to surface? X Yes _No Spacer returns? X Yes _No Vol to Surf: 16 Cement In Place At: 12:00 Date: 1/16/2022 Estimated TOC: 2,328 Method Used To Determine TOC: Returns to surface Stage Collar @ 2328.35 Type ES Cementer Closure OK Y 'reflush (Spacer) Type: Tuned Spacer Density (ppg) 10 Volume pumped (BBLs) 60 Lead Slurry Type: ArclicCem Sacks: 610 Yield: 2.88 Density (ppg) 10.7 Volume pumped (BBLs) 313 Mixing / Pumping Rate (bpm): 5.25 Tail Slurry Type: HalCem Type 1111 Sacks: 270 Yield: 1.17 y Density (ppg) 15.8 Volume pumped (BBLs) 57.45 Mixing / Pumping Rate (bpm): 3.25 Z Post Flush (Spacer) coi Type: Density (ppg) Rate (bpm): Volume: w N Displacement: Type: Spud Mud Density (ppg) 9.5 Rate (bpm): 6.88 Volume (actual / calculated): 169.98/170.97 FCP (psi): 550 Pump used for disp: Rig Bump Plug? X Yes No Bump press 1960 Casing Rotated? X No Reciprocated? X No % Returns during job 100 _Yes Cement returns to surface? X _Yes Yes _No Spacer returns? _Yes X No Vol to Surf: 229 Cement In Place At: 23:25 Date: 1/16/2022 Estimated TOC: 27 Method Used To Determine TOC: Cement to surface Post Job Calculations: Calculated Craft Vol @ 0 % excess: Cmt returned to surface: _ OH volume Calculated: 362.74 Total Volume cmt Pumped: _ 245 Calculated cement left in wellbore: 394.45 354.04 OH volume actual: 384.75 Actual % Washout: 639.45 8.67 LLC TREE = 20" X 34" COND 215.5#, A-53 WELLHEAD = ACTUATOR = OKB. ELEV = 82.89' REF ELEV = 82.89' BF. ELEV =-57.70' KOP = Max Angle = 97- @ 14635' Datum MD = 5253.38' Datum TVD = '4400' SS 9-5/8" CSG, 47#,VAM 21, ID = 8.681" 1 106' r. P*111 k Minimum ID = 3.813" @ 2173' 4-1/2" HES X NIPPLE Z-220 SAFETY NOTES: WELL ANGLE > 70° @ 5560'. 2173' -�4-1/2" HES X NIP, ID = 3.813" 2328' -�9-5/8" HES CEMENTER QAS I IFT MANr]RFI S ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3232 2701 35 MMG DOME BK 16 02/12/22 3 4131 3548 10 MMG DOME BK 16 02/12/22 2 4783 4149 35 MMG DOME BK 20 02/12t22 1 5437 4575 64 MMG SO BK 24 02/12/22 5473' -�4-1Z' HES X NIP, D = 3.813" 5502' 6-5/8" X 4-1/2" HES TNT PKR, ID = 3.867" 5533' 4-1/2" HES X NIP, D = 3.813" I 5577g72W �479-"-15X/2/86" "-W5X/L87E"" XGLO, TID,P ID=w/=3T.59IE.59B89A"0 C" K SLV, ID=6.180" �7" LNR, 26#, L-80 W563, 577 .0383 bpf, ID=6.276" 8 4-1/2"TBG,12.6#,L-80VT,.0152bpf,ID=3.958" 850' 5850 9 9-5/8" CSG, 40#, TXP BTC, ID = 8.835I 1 w FAULT @ 9435' 1 1 9586' — — — — — — — — �— 9587' 5-1/2" WELLTEC WAB PKR (NOT SET), i ID = 4.778" PERFORATION SUMMARY REF LOG: ON ANGLE AT TOP PERF:_' @ Note: Refer to Production DB for historical perfdata SIZE SPF INTERVAL O n/S z SHOT SQZ 6-5/8" SLTD 5920 - 9418 SLTD 6-5/8" SLTD 9807 - 13778 SLTD 6-5/8" SLTD 15012 -17649 SLTD PLUGBACK #1 DETAIL 4-1/2", 12.6#, P&A KIT RAN AND CEMENTED 12410'-12907' IN PB 1 (Isolates Wet Oba) 9740' 5-1/2" WELLTEC WAB PKR (NOT SET), ID = 4.778" I I �� FAULT @ 10780' I 1 FAULT @ 11737' PBTD 1768W 6-5/8" LNR, 20#, L-80 HYD 563, 17691' .0355 bpf, ID = 6.019" 9766' -� 5-1 /2" X 6-5/8" XO, ID = 4.778" DATE REV BY COMMENTS DATE REV BY COMMENTS 02/09/22 IRIG INITIAL WELLBORE 02/18/22 JMD CREATE WBS PER TALLIES 02/22/22 BW/JMD WBS EDITS 02/23/22 BW/JMD FINAL ODE APPROVAL PLUGBACK DETAIL P131: 9681' - 12907' P132: 14270' -15216 PLUGBACK #2 ORION UNIT WELL: Z-220 PERMIT No: 221-105 API No: 50-029-23705-00 SEC 19. T11 N. R12E. 4295' FSL & 2832' FEL Hilcorp North Slope, LLC Hilcorp North Prudhoe Bay Z Z-220 500292370500 Slope, LLC Sperry Drilling Definitive Survey Report 02 February, 2022 HALLIBURTON Sperry Drilling Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220 Design: Z-220 Local Co-ordinate Reference: Well Z-220 TVD Reference: Z-220 Actual RKB @ 82.89usft MD Reference: Z-220 Actual RKB @ 82.89usft North Reference: True Survey Calculation Method: Minimum Curvature Database: NORTH US + CANADA )roject Prudhoe Bay, North Slope, UNITED STATES flap System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level 3eo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point flap Zone: Alaska Zone 04 Using geodetic scale factor Well Z-220, Slot SB Well Position +N/-S 0.00 usft Northing: 5,959,100.12 usft Latitude: 70° 17' 51.634 N +E/-W 0.00 usft Easting: 599,846.00 usft Longitude: 149° 11' 29.155 W Position Uncertainty 0.50 usft Wellhead Elevation: usft Ground Level: 56.10usft Wellbore Z-220 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (nT) IFR 1/20/2022 15.44 80.73 57,248.30000000 Design Z-220 Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 14,254.02 Vertical Section: Depth From (TVD) +N/-S +E/-W Direction (usft) (usft) (usft) (°) 26.79 0.00 0.00 10.00 Survey Program Date 2/2/2022 From To (usft) (usft) Survey (Wellbore) Tool Name Description Survey Date 179.37 866.30 Z-220PB1 GWD Gyro (Z-220PB1) GYD_Quest GWD Gyrodata Stationary SPEAR GWD tool in open 12/30/2021 917.65 5,876.96 Z-220PB1 MWD+IFR2+MS+Sag (1) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/11/2022 5,893.80 9,675.26 Z-220PB1 MWD+IFR2+MS+Sag (2) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/20/2022 9,681.00 14,254.02 Z-220PB2 MWD+IFR2+MS+Sag (3) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/24/2022 14,270.00 17,621.37 Z-220 MWD+IFR2+MS+Sag (4) (Z-220) 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/31/2022 Survey Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (I (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 26.79 0.00 0.00 26.79 -56.10 0.00 0.00 5,959,100.12 599,846.00 0.00 0.00 UNDEFINED 179.37 0.09 339.14 179.37 96.48 0.11 -0.04 5,959,100.23 599,845.96 0.06 0.10 GYD_QuestGWD (1) 240.10 0.09 125.40 240.10 157.21 0.13 -0.02 5,959,100.25 599,845.98 0.28 0.12 GYD_Quest GWD (1) 303.10 1.32 217.91 303.09 220.20 -0.47 -0.43 5,959,099.64 599,845.58 2.11 -0.54 GYD_Quest GWD (1) 364.17 3.66 216.85 364.10 281.21 -2.59 -2.03 5,959,097.51 599,844.01 3.83 -2.90 GYD_Quest GWD (1) 426.92 5.05 222.84 426.67 343.78 -6.22 -5.11 5,959,093.84 599,840.98 2.33 -7.01 GYD_Quest GWD (1) 489.01 6.28 218.97 488.46 405.57 -10.86 -9.10 5,959,089.14 599,837.04 2.07 -12.27 GYD_Quest GWD (1) 550.96 8.03 224.96 549.92 467.03 -16.56 -14.29 5,959,083.38 599,831.93 3.07 -18.79 GYD_Quest GWD (1) 612.20 10.38 222.31 610.37 527.48 -23.66 -21.03 5,959,076.18 599,825.29 3.90 -26.96 GYD_Quest GWD (1) 674.16 13.35 213.50 671.00 588.11 -33.76 -28.73 5,959,065.98 599,817.72 5.60 -38.24 GYD_Quest GWD (1) 21212022 4:53:19PM Page 2 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220 Survey Calculation Method: Minimum Curvature Design: Z-220 Database: NORTH US + CANADA Survey Ar T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100,) (ft) Survey Tool Name 739.08 15.98 218.61 733.81 650.92 -47.00 -38.45 5,959,052.62 599,808.18 4.51 -52.96 GYD_Quest GWD (1) 802.24 18.19 217.38 794.18 711.29 -61.62 -49.86 5,959,037.84 599,796.97 3.55 -69.35 GYD_Quest GWD (1) 866.30 20.05 218.44 854.70 771.81 -78.17 -62.76 5,959,021.13 599,784.29 2.95 -87.88 GYD_Quest GWD (1) 917.65 21.64 217.84 902.69 819.80 -92.55 -74.04 5,959,006.61 599,773.20 3.12 -104.00 3_MWD+IFR2+MS+Sag (2) 981.32 22.97 218.45 961.59 878.70 -111.55 -88.97 5,958,987.41 599,758.53 2.12 -125.30 3_MWD+IFR2+MS+Sag (2) 1,045.46 26.04 219.84 1,019.95 937.06 -132.16 -105.78 5,958,966.57 599,742.00 4.87 -148.52 3_MWD+IFR2+MS+Sag (2) 1,109.03 28.40 221.95 1,076.47 993.58 -154.12 -124.82 5,958,944.36 599,723.25 4.01 -173.46 3_MWD+IFR2+MS+Sag (2) 1,172.58 30.13 220.54 1,131.91 1,049.02 -177.49 -145.30 5,958,920.73 599,703.09 2.93 -200.02 3_MWD+IFR2+MS+Sag (2) 1,236.23 34.37 219.74 1,185.73 1,102.84 -203.46 -167.18 5,958,894.48 599,681.56 6.69 -229.39 3_MWD+IFR2+MS+Sag (2) 1,299.65 37.53 220.90 1,237.06 1,154.17 -231.83 -191.27 5,958,865.79 599,657.84 5.10 -261.52 3_MWD+IFR2+MS+Sag (2) 1,362.34 39.56 220.86 1,286.09 1,203.20 -261.36 -216.84 5,958,835.92 599,632.67 3.24 -295.05 3_MWD+IFR2+MS+Sag (2) 1,427.26 41.68 221.22 1,335.37 1,252.48 -293.24 -244.59 5,958,803.68 599,605.35 3.29 -331.26 3_MWD+IFR2+MS+Sag (2) 1,491.05 42.06 221.55 1,382.87 1,299.98 -325.18 -272.74 5,958,771.37 599,577.63 0.69 -367.60 3_MWD+IFR2+MS+Sag (2) 1,554.50 40.63 220.35 1,430.50 1,347.61 -356.83 -300.21 5,958,739.36 599,550.58 2.58 -403.54 3_MWD+IFR2+MS+Sag (2) 1,618.32 39.59 220.25 1,479.31 1,396.42 -388.19 -326.81 5,958,707.66 599,524.41 1.63 -439.04 3_MWD+IFR2+MS+Sag (2) 1,681.65 39.77 220.85 1,528.05 1,445.16 -418.92 -353.09 5,958,676.59 599,498.53 0.67 -473.86 3_MWD+IFR2+MS+Sag (2) 1,742.96 39.43 220.82 1,575.29 1,492.40 -448.48 -378.65 5,958,646.69 599,473.38 0.56 -507.42 3_MWD+IFR2+MS+Sag (2) 1,808.19 40.11 220.48 1,625.43 1,542.54 -480.14 -405.83 5,958,614.67 599,446.62 1.09 -543.32 3_MWD+IFR2+MS+Sag (2) 1,871.74 40.91 220.65 1,673.75 1,590.86 -511.50 -432.68 5,958,582.96 599,420.20 1.27 -578.86 3_MWD+IFR2+MS+Sag (2) 1,935.08 41.95 220.21 1,721.24 1,638.35 -543.41 -459.85 5,958,550.70 599,393.45 1.71 -615.00 3_MWD+IFR2+MS+Sag (2) 1,998.39 40.64 220.64 1,768.80 1,685.91 -575.21 -486.94 5,958,518.54 599,366.78 2.12 -651.03 3_MWD+IFR2+MS+Sag (2) 2,062.85 42.33 220.06 1,817.09 1,734.20 -607.75 -514.59 5,958,485.64 599,339.58 2.69 -687.88 3_MWD+IFR2+MS+Sag (2) 2,125.24 42.65 220.20 1,863.10 1,780.21 -639.98 -541.75 5,958,453.06 599,312.85 0.53 -724.33 3_MWD+IFR2+MS+Sag (2) 2,188.42 41.49 220.36 1,909.99 1,827.10 -672.27 -569.12 5,958,420.41 599,285.91 1.84 -760.88 3_MWD+IFR2+MS+Sag (2) 2,252.12 42.50 220.72 1,957.34 1,874.45 -704.66 -596.82 5,958,387.66 599,258.65 1.63 -797.59 3_MWD+IFR2+MS+Sag (2) 2,315.18 42.50 220.50 2,003.83 1,920.94 -737.00 -624.55 5,958,354.95 599,231.35 0.24 -834.26 3_MWD+IFR2+MS+Sag (2) 2,379.04 42.76 221.46 2,050.81 1,967.92 -769.65 -652.91 5,958,321.93 599,203.43 1.10 -871.33 3_MWD+IFR2+MS+Sag (2) 2,442.90 42.60 221.98 2,097.76 2,014.87 -801.96 -681.72 5,958,289.24 599,175.05 0.61 -908.16 3_MWD+IFR2+MS+Sag (2) 2,506.46 42.32 220.80 2,144.65 2,061.76 -834.15 -710.09 5,958,256.68 599,147.12 1.33 -944.78 3_MWD+IFR2+MS+Sag (2) 2,569.84 42.51 220.28 2,191.44 2,108.55 -866.64 -737.88 5,958,223.83 599,119.77 0.63 -981.60 3_MWD+IFR2+MS+Sag (2) 2,633.68 41.67 220.64 2,238.82 2,155.93 -899.20 -765.64 5,958,190.91 599,092.44 1.37 -1,018.49 3_MWD+IFR2+MS+Sag (2) 2,697.66 41.29 220.87 2,286.75 2,203.86 -931.30 -793.31 5,958,158.45 599,065.20 0.64 -1,054.91 3_MWD+IFR2+MS+Sag (2) 2,761.49 39.40 220.07 2,335.40 2,252.51 -962.73 -820.13 5,958,126.67 599,038.80 3.07 -1,090.52 3_MWD+IFR2+MS+Sag (2) 2,824.91 39.74 219.51 2,384.29 2,301.40 -993.77 -845.99 5,958,095.28 599,013.37 0.78 -1,125.58 3_MWD+IFR2+MS+Sag (2) 2,889.05 39.94 220.58 2,433.54 2,350.65 -1,025.23 -872.42 5,958,063.48 598,987.35 1.11 -1,161.15 3_MWD+IFR2+MS+Sag (2) 2,952.13 39.88 221.70 2,481.92 2,399.03 -1,055.71 -899.05 5,958,032.66 598,961.14 1.14 -1,195.79 3_MWD+IFR2+MS+Sag (2) 3,015.70 40.17 222.60 2,530.60 2,447.71 -1,086.02 -926.48 5,958,001.99 598,934.11 1.02 -1,230.40 3_MWD+IFR2+MS+Sag (2) 3,079.87 39.21 221.65 2,579.98 2,497.09 -1,116.41 -953.97 5,957,971.24 598,907.03 1.77 -1,265.10 3_MWD+IFR2+MS+Sag (2) 3,143.19 37.72 221.09 2,629.56 2,546.67 -1,145.96 -980.01 5,957,941.34 598,881.39 2.42 -1,298.73 3_MWD+IFR2+MS+Sag (2) 3,206.80 35.84 219.62 2,680.51 2,597.62 -1,174.98 -1,004.67 5,957,912.01 598,857.11 3.26 -1,331.59 3_MWD+IFR2+MS+Sag (2) 21212022 4:53:19PM Page 3 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220 Design: Z-220 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Survey Rw -Ir--- Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (*/100,) (ft) Survey Tool Name 3,270.80 32.76 217.95 2,733.37 2,650.48 -1,203.07 -1,027.28 5,957,883.62 598,834.89 5.03 -1,363.18 3_MWD+IFR2+MS+Sag (2) 3,334.30 30.08 216.57 2,787.56 2,704.67 -1,229.40 -1,047.33 5,957,857.02 598,815.19 4.37 -1,392.59 3_MWD+IFR2+MS+Sag (2) 3,398.21 28.22 214.24 2,843.37 2,760.48 -1,254.76 -1,065.37 5,957,831.43 598,797.48 3.41 -1,420.70 3_MWD+IFR2+MS+Sag (2) 3,461.96 25.81 212.95 2,900.16 2,817.27 -1,278.87 -1,081.41 5,957,807.11 598,781.77 3.89 -1,447.23 3_MWD+IFR2+MS+Sag (2) 3,525.50 22.79 211.56 2,958.07 2,875.18 -1,300.97 -1,095.37 5,957,784.83 598,768.10 4.84 -1,471.41 3_MWD+IFR2+MS+Sag (2) 3,589.22 19.71 210.22 3,017.45 2,934.56 -1,320.77 -1,107.24 5,957,764.87 598,756.50 4.89 -1,492.98 3_MWD+IFR2+MS+Sag (2) 3,652.87 17.23 207.64 3,077.81 2,994.92 -1,338.40 -1,117.02 5,957,747.11 598,746.96 4.10 -1,512.04 3_MWD+IFR2+MS+Sag (2) 3,715.21 14.18 206.09 3,137.82 3,054.93 -1,353.44 -1,124.66 5,957,731.97 598,739.51 4.94 -1,528.18 3_MWD+IFR2+MS+Sag (2) 3,777.80 11.49 200.77 3,198.84 3,115.95 -1,366.16 -1,130.25 5,957,719.19 598,734.10 4.69 -1,541.67 3_MWD+IFR2+MS+Sag (2) 3,842.50 8.85 194.83 3,262.52 3,179.63 -1,377.00 -1,133.81 5,957,708.30 598,730.69 4.39 -1,552.96 3_MWD+IFR2+MS+Sag (2) 3,906.45 6.66 180.00 3,325.89 3,243.00 -1,385.47 -1,135.07 5,957,699.82 598,729.54 4.61 -1,561.52 3_MWD+IFR2+MS+Sag (2) 3,970.45 6.11 153.13 3,389.51 3,306.62 -1,392.22 -1,133.53 5,957,693.09 598,731.17 4.70 -1,567.90 3_MWD+IFR2+MS+Sag (2) 4,033.41 7.16 123.62 3,452.06 3,369.17 -1,397.38 -1,128.74 5,957,687.99 598,736.02 5.59 -1,572.15 3_MWD+IFR2+MS+Sag (2) 4,096.72 8.71 97.18 3,514.78 3,431.89 -1,400.16 -1,120.70 5,957,685.32 598,744.10 6.19 -1,573.50 3_MWD+IFR2+MS+Sag (2) 4,160.70 11.04 79.50 3,577.83 3,494.94 -1,399.65 -1,109.87 5,957,685.97 598,754.92 5.94 -1,571.12 3_MWD+IFR2+MS+Sag (2) 4,223.73 13.76 74.73 3,639.38 3,556.49 -1,396.58 -1,096.70 5,957,689.22 598,768.05 4.61 -1,565.80 3_MWD+IFR2+MS+Sag (2) 4,287.58 16.23 69.87 3,701.06 3,618.17 -1,391.51 -1,080.99 5,957,694.50 598,783.69 4.34 -1,558.08 3_MWD+IFR2+MS+Sag (2) 4,351.23 18.03 65.23 3,761.88 3,678.99 -1,384.32 -1,063.69 5,957,701.92 598,800.88 3.55 -1,547.99 3_MWD+IFR2+MS+Sag (2) 4,414.64 20.11 61.25 3,821.81 3,738.92 -1,374.96 -1,045.22 5,957,711.52 598,819.23 3.87 -1,535.57 3_MWD+IFR2+MS+Sag (2) 4,478.13 22.09 59.33 3,881.04 3,798.15 -1,363.62 -1,025.38 5,957,723.12 598,838.91 3.30 -1,520.96 3_MWD+IFR2+MS+Sag (2) 4,542.00 24.37 57.22 3,939.73 3,856.84 -1,350.36 -1,003.97 5,957,736.66 598,860.14 3.80 -1,504.18 3_MWD+IFR2+MS+Sag (2) 4,605.09 26.64 54.13 3,996.67 3,913.78 -1,335.02 -981.56 5,957,752.30 598,882.35 4.17 -1,485.19 3_MWD+IFR2+MS+Sag (2) 4,668.85 29.98 52.44 4,052.80 3,969.91 -1,316.93 -957.34 5,957,770.71 598,906.32 5.39 -1,463.16 3_MWD+IFR2+MS+Sag (2) 4,732.50 32.73 52.49 4,107.15 4,024.26 -1,296.75 -931.08 5,957,791.23 598,932.31 4.32 -1,438.73 3_MWD+IFR2+MS+Sag (2) 4,796.11 35.44 52.23 4,159.83 4,076.94 -1,274.98 -902.86 5,957,813.37 598,960.24 4.27 -1,412.39 3_MWD+IFR2+MS+Sag (2) 4,860.22 37.64 52.77 4,211.33 4,128.44 -1,251.75 -872.58 5,957,837.00 598,990.21 3.47 -1,384.25 3_MWD+IFR2+MS+Sag (2) 4,924.05 40.06 52.73 4,261.04 4,178.15 -1,227.51 -840.71 5,957,861.66 599,021.75 3.78 -1,354.85 3_MWD+IFR2+MS+Sag (2) 4,987.52 42.61 51.76 4,308.69 4,225.80 -1,201.84 -807.57 5,957,887.76 599,054.54 4.15 -1,323.81 3_MWD+IFR2+MS+Sag (2) 5,050.94 45.63 50.92 4,354.22 4,271.33 -1,174.25 -773.11 5,957,915.80 599,088.63 4.84 -1,290.66 3_MWD+IFR2+MS+Sag (2) 5,115.10 49.70 49.84 4,397.42 4,314.53 -1,144.01 -736.60 5,957,946.53 599,124.73 6.47 -1,254.54 3_MWD+IFR2+MS+Sag (2) 5,178.29 51.34 49.64 4,437.60 4,354.71 -1,112.49 -699.38 5,957,978.54 599,161.52 2.61 -1,217.03 3_MWD+IFR2+MS+Sag (2) 5,242.40 53.96 48.69 4,476.48 4,393.59 -1,079.16 -660.83 5,958,012.37 599,199.62 4.26 -1,177.52 3_MWD+IFR2+MS+Sag (2) 5,305.75 58.41 47.99 4,511.73 4,428.84 -1,044.18 -621.53 5,958,047.87 599,238.46 7.08 -1,136.24 3_MWD+IFR2+MS+Sag (2) 5,369.06 60.92 47.97 4,543.71 4,460.82 -1,007.60 -580.93 5,958,084.98 599,278.55 3.96 -1,093.17 3_MWD+IFR2+MS+Sag (2) 5,432.28 63.66 47.37 4,573.11 4,490.22 -969.91 -539.57 5,958,123.21 599,319.41 4.41 -1,048.87 3_MWD+IFR2+MS+Sag (2) 5,496.51 66.30 47.20 4,600.27 4,517.38 -930.43 -496.81 5,958,163.25 599,361.64 4.13 -1,002.57 3_MWD+IFR2+MS+Sag (2) 5,559.94 69.89 47.31 4,623.92 4,541.03 -890.50 -453.60 5,958,203.75 599,404.31 5.66 -955.74 3_MWD+IFR2+MS+Sag (2) 5,623.77 72.55 47.76 4,644.47 4,561.58 -849.70 -409.02 5,958,245.13 599,448.34 4.22 -907.82 3_MWD+IFR2+MS+Sag (2) 5,686.75 75.00 48.38 4,662.07 4,579.18 -809.30 -364.03 5,958,286.13 599,492.79 4.00 -860.22 3_MWD+IFR2+MS+Sag (2) 5,750.29 78.80 48.28 4,676.47 4,593.58 -768.17 -317.81 5,958,327.87 599,538.45 5.98 -811.68 3_MWD+IFR2+MS+Sag (2) ZW2022 4:53:19PM Page 4 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220 Survey Calculation Method: Minimum Curvature Design: �Z-220 Database: NORTH US + CANADA Survey JF7 -1 Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/1001) (ft) Survey Tool Name 5,813.72 83.36 48.26 4,686.30 4,603.41 -726.47 -271.05 5,958,370.18 599,584.65 7.19 -762.50 3_MWD+IFR2+MS+Sag (2) 5,876.96 84.73 47.74 4,692.87 4,609.98 -684.38 -224.31 5,958,412.88 599,630.82 2.31 -712.94 3_MWD+IFR2+MS+Sag (2) 5,893.80 84.85 47.73 4,694.40 4,611.51 -673.10 -211.90 5,958,424.32 599,643.08 0.73 -699.67 3_MWD+IFR2+MS+Sag (3) 5,986.09 85.12 48.24 4,702.46 4,619.57 -611.57 -143.60 5,958,486.75 599,710.55 0.62 -627.21 3_MWD+IFR2+MS+Sag (3) 6,050.40 85.36 48.04 4,707.80 4,624.91 -568.80 -95.87 5,958,530.14 599,757.71 0.49 -576.81 3_MWD+IFR2+MS+Sag (3) 6,114.10 85.11 47.40 4,713.09 4,630.20 -526.10 -48.90 5,958,573.47 599,804.10 1.08 -526.59 3_MWD+IFR2+MS+Sag (3) 6,177.64 86.35 46.48 4,717.82 4,634.93 -482.83 -2.60 5,958,617.34 599,849.81 2.43 -475.95 3_MWD+IFR2+MS+Sag (3) 6,241.21 86.72 44.94 4,721.66 4,638.77 -438.53 42.81 5,958,662.24 599,894.63 2.49 -424.43 3_MWD+IFR2+MS+Sag (3) 6,305.02 88.64 42.79 4,724.25 4,641.36 -392.56 86.99 5,958,708.78 599,938.19 4.52 -371.49 3_MWD+IFR2+MS+Sag (3) 6,368.73 88.70 42.52 4,725.73 4,642.84 -345.72 130.15 5,958,756.19 599,980.72 0.43 -317.87 3_MWD+IFR2+MS+Sag (3) 6,432.31 87.59 41.27 4,727.79 4,644.90 -298.42 172.58 5,958,804.05 600,022.52 2.63 -263.92 3_MWD+IFR2+MS+Sag (3) 6,495.61 85.05 41.83 4,731.85 4,648.96 -251.15 214.48 5,958,851.86 600,063.77 4.11 -210.09 3_MWD+IFR2+MS+Sag (3) 6,559.61 84.43 44.09 4,737.72 4,654.83 -204.51 257.90 5,958,899.07 600,106.58 3.65 -156.62 3_MWD+IFR2+MS+Sag (3) 6,622.36 84.31 46.12 4,743.87 4,660.98 -160.44 302.14 5,958,943.72 600,150.22 3.23 -105.54 3_MWD+IFR2+MS+Sag (3) 6,686.56 85.05 46.08 4,749.82 4,666.93 -116.11 348.20 5,958,988.65 600,195.68 1.15 -53.89 3_MWD+IFR2+MS+Sag (3) 6,749.70 86.17 46.52 4,754.66 4,671.77 -72.62 393.71 5,959,032.74 600,240.61 1.91 -3.15 3_MWD+IFR2+MS+Sag (3) 6,813.59 87.09 45.87 4,758.41 4,675.52 -28.47 439.74 5,959,077.49 600,286.04 1.76 48.32 3_MWD+IFR2+MS+Sag (3) 6,876.70 87.34 46.17 4,761.48 4,678.59 15.30 485.10 5,959,121.86 600,330.81 0.62 99.30 3_MWD+IFR2+MS+Sag (3) 6,939.91 87.34 46.24 4,764.41 4,681.52 59.00 530.68 5,959,166.16 600,375.80 0.11 150.25 3_MWD+IFR2+MS+Sag (3) 7,003.56 87.53 45.96 4,767.26 4,684.37 103.09 576.49 5,959,210.85 600,421.02 0.53 201.63 3_MWD+IFR2+MS+Sag (3) 7,067.16 88.52 46.76 4,769.45 4,686.56 146.95 622.49 5,959,255.32 600,466.43 2.00 252.82 3_MWD+IFR2+MS+Sag (3) 7,130.62 90.18 47.56 4,770.17 4,687.28 190.10 669.02 5,959,299.07 600,512.38 2.90 303.39 3_MWD+IFR2+MS+Sag (3) 7,193.83 90.00 48.05 4,770.07 4,687.18 232.55 715.85 5,959,342.14 600,558.63 0.83 353.33 3_MWD+IFR2+MS+Sag (3) 7,257.42 88.39 46.59 4,770.97 4,688.08 275.66 762.59 5,959,385.86 600,604.79 3.42 403.89 3_MWD+IFR2+MS+Sag (3) 7,320.97 88.08 45.41 4,772.93 4,690.04 319.78 808.28 5,959,430.58 600,649.89 1.92 455.28 3_MWD+IFR2+MS+Sag (3) 7,384.03 87.65 44.28 4,775.27 4,692.38 364.46 852.72 5,959,475.84 600,693.73 1.92 506.99 3_MWD+IFR2+MS+Sag (3) 7,447.91 87.22 44.17 4,778.13 4,695.24 410.19 897.23 5,959,522.16 600,737.62 0.69 559.76 3_MWD+IFR2+MS+Sag (3) 7,511.36 89.26 45.30 4,780.08 4,697.19 455.24 941.86 5,959,567.79 600,781.65 3.67 611.87 3_MWD+IFR2+MS+Sag (3) 7,574.86 89.32 45.92 4,780.87 4,697.98 499.65 987.24 5,959,612.80 600,826.43 0.98 663.49 3_MWD+IFR2+MS+Sag (3) 7,638.40 89.81 45.84 4,781.35 4,698.46 543.89 1,032.85 5,959,657.63 600,871.44 0.78 714.98 3_MWD+IFR2+MS+Sag (3) 7,702.68 89.93 45.34 4,781.50 4,698.61 588.87 1,078.77 5,959,703.22 600,916.76 0.80 767.25 3_MWD+IFR2+MS+Sag (3) 7,766.02 90.24 45.51 4,781.40 4,698.51 633.32 1,123.89 5,959,748.26 600,961.28 0.56 818.86 3_MWD+IFR2+MS+Sag (3) 7,829.93 90.00 43.28 4,781.27 4,698.38 678.99 1,168.60 5,959,794.51 601,005.37 3.51 871.60 3_MWD+IFR2+MS+Sag (3) 7,893.43 90.30 42.27 4,781.10 4,698.21 725.60 1,211.72 5,959,841.68 601,047.87 1.66 924.99 3_MWD+IFR2+MS+Sag (3) 7,956.80 90.68 43.75 4,780.56 4,697.67 771.93 1,254.94 5,959,888.59 601,090.47 2.41 978.12 3_MWD+IFR2+MS+Sag (3) 8,021.09 90.49 45.14 4,779.90 4,697.01 817.83 1,299.96 5,959,935.07 601,134.86 2.18 1,031.14 3_MWD+IFR2+MS+Sag (3) 8,084.45 88.57 45.46 4,780.42 4,697.53 862.39 1,344.99 5,959,980.22 601,179.30 3.07 1,082.84 3_MWD+IFR2+MS+Sag (3) 8,148.25 88.64 45.73 4,781.98 4,699.09 907.02 1,390.56 5,960,025.45 601,224.26 0.44 1,134.71 3_MWD+IFR2+MS+Sag (3) 8,211.98 90.06 45.17 4,782.70 4,699.81 951.72 1,435.97 5,960,070.75 601,269.07 2.40 1,186.62 3_MWD+IFR2+MS+Sag (3) 8,275.65 90.30 44.46 4,782.50 4,699.61 996.89 1,480.84 5,960,116.51 601,313.34 1.18 1,238.89 3_MWD+IFR2+MS+Sag (3) ZW2022 4:53:19PM Page 5 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220 Design: Z-220 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Survey ow T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 8,339.43 90.06 42.75 4,782.30 4,699.41 1,043.07 1,524.83 5,960,163.26 601,356.70 2.71 1,292.01 3_MWD+IFR2+MS+Sag (3) 8,403.49 89.87 41.78 4,782.34 4,699.45 1,090.48 1,567.91 5,960,211.23 601,399.15 1.54 1,346.18 3_MWD+IFR2+MS+Sag (3) 8,466.65 89.50 40.75 4,782.69 4,699.80 1,137.95 1,609.57 5,960,259.25 601,440.17 1.73 1,400.16 3_MWD+IFR2+MS+Sag (3) 8,529.63 89.13 40.27 4,783.44 4,700.55 1,185.83 1,650.48 5,960,307.67 601,480.43 0.96 1,454.42 3_MWD+IFR2+MS+Sag (3) 8,593.12 89.13 38.71 4,784.40 4,701.51 1,234.82 1,690.85 5,960,357.19 601,520.14 2.46 1,509.67 3_MWD+IFR2+MS+Sag (3) 8,656.89 88.45 36.86 4,785.75 4,702.86 1,285.21 1,729.91 5,960,408.08 601,558.53 3.09 1,566.08 3_MWD+IFR2+MS+Sag (3) 8,720.51 88.20 35.44 4,787.61 4,704.72 1,336.55 1,767.42 5,960,459.92 601,595.35 2.27 1,623.16 3_MWD+IFR2+MS+Sag (3) 8,784.29 88.27 34.92 4,789.57 4,706.68 1,388.66 1,804.15 5,960,512.50 601,631.38 0.82 1,680.85 3_MWD+IFR2+MS+Sag (3) 8,848.02 89.19 35.05 4,790.99 4,708.10 1,440.86 1,840.68 5,960,565.18 601,667.21 1.46 1,738.60 3_MWD+IFR2+MS+Sag (3) 8,911.78 89.38 32.90 4,791.78 4,708.89 1,493.73 1,876.31 5,960,618.51 601,702.13 3.38 1,796.85 3_MWD+IFR2+MS+Sag (3) 8,974.96 89.19 30.66 4,792.57 4,709.68 1,547.43 1,909.58 5,960,672.64 601,734.68 3.56 1,855.51 3_MWD+IFR2+MS+Sag (3) 9,038.60 89.07 29.13 4,793.54 4,710.65 1,602.59 1,941.29 5,960,728.22 601,765.66 2.41 1,915.35 3_MWD+IFR2+MS+Sag (3) 9,102.10 89.19 29.21 4,794.50 4,711.61 1,658.03 1,972.24 5,960,784.06 601,795.86 0.23 1,975.32 3_MWD+IFR2+MS+Sag (3) 9,165.74 89.38 27.79 4,795.30 4,712.41 1,713.95 2,002.60 5,960,840.38 601,825.48 2.25 2,035.66 3_MWD+IFR2+MS+Sag (3) 9,229.78 88.95 26.33 4,796.23 4,713.34 1,770.98 2,031.73 5,960,897.77 601,853.84 2.38 2,096.88 3_MWD+IFR2+MS+Sag (3) 9,293.75 89.01 24.42 4,797.37 4,714.48 1,828.76 2,059.14 5,960,955.91 601,880.48 2.99 2,158.55 3_MWD+IFR2+MS+Sag (3) 9,356.73 87.96 22.43 4,799.03 4,716.14 1,886.53 2,084.17 5,961,014.00 601,904.73 3.57 2,219.78 3_MWD+IFR2+MS+Sag (3) 9,420.70 88.02 20.05 4,801.28 4,718.39 1,946.11 2,107.32 5,961,073.88 601,927.10 3.72 2,282.48 3_MWD+IFR2+MS+Sag (3) 9,484.82 86.84 18.49 4,804.15 4,721.26 2,006.58 2,128.46 5,961,134.62 601,947.43 3.05 2,345.69 3_MWD+IFR2+MS+Sag (3) 9,548.73 84.18 15.34 4,809.16 4,726.27 2,067.52 2,147.00 5,961,195.80 601,965.15 6.44 2,408.93 3_MWD+IFR2+MS+Sag (3) 9,612.02 83.75 12.33 4,815.81 4,732.92 2,128.62 2,162.05 5,961,257.09 601,979.39 4.78 2,471.72 3_MWD+IFR2+MS+Sag (3) 9,675.26 83.93 10.68 4,822.60 4,739.71 2,190.23 2,174.59 5,961,318.86 601,991.11 2.61 2,534.57 3_MWD+IFR2+MS+Sag (3) 9,681.00 84.13 10.57 4,823.20 4,740.31 2,195.84 2,175.64 5,961,324.48 601,992.09 3.97 2,540.28 3_MWD+IFR2+MS+Sag (4) 9,739.44 83.06 10.68 4,829.71 4,746.82 2,252.92 2,186.35 5,961,381.69 602,002.03 1.84 2,598.35 3_MWD+IFR2+MS+Sag (4) 9,803.52 85.99 11.69 4,835.83 4,752.94 2,315.49 2,198.72 5,961,444.41 602,013.57 4.83 2,662.12 3_MWD+IFR2+MS+Sag (4) 9,867.18 87.96 10.38 4,839.19 4,756.30 2,377.88 2,210.89 5,961,506.95 602,024.91 3.71 2,725.67 3_MWD+IFR2+MS+Sag (4) 9,930.30 89.75 9.22 4,840.45 4,757.56 2,440.07 2,221.63 5,961,569.27 602,034.82 3.38 2,788.78 3_MWD+IFR2+MS+Sag (4) 9,994.38 91.30 7.76 4,839.86 4,756.97 2,503.44 2,231.09 5,961,632.75 602,043.44 3.32 2,852.83 3_MWD+IFR2+MS+Sag (4) 10,057.64 92.53 6.35 4,837.75 4,754.86 2,566.18 2,238.85 5,961,695.59 602,050.37 2.96 2,915.97 3_MWD+IFR2+MS+Sag (4) 10,121.41 92.28 4.43 4,835.07 4,752.18 2,629.61 2,244.84 5,961,759.09 602,055.51 3.03 2,979.47 3_MWD+IFR2+MS+Sag (4) 10,184.64 91.91 2.52 4,832.76 4,749.87 2,692.68 2,248.67 5,961,822.20 602,058.50 3.07 3,042.25 3_MWD+IFR2+MS+Sag (4) 10,248.14 91.72 0.45 4,830.75 4,747.86 2,756.12 2,250.31 5,961,885.65 602,059.30 3.27 3,105.01 3_MWD+IFR2+MS+Sag (4) 10,311.76 91.54 358.02 4,828.94 4,746.05 2,819.71 2,249.46 5,961,949.21 602,057.61 3.83 3,167.48 3_MWD+IFR2+MS+Sag (4) 10,375.34 90.80 356.32 4,827.64 4,744.75 2,883.19 2,246.33 5,962,012.64 602,053.63 2.92 3,229.46 3_MWD+IFR2+MS+Sag (4) 10,438.64 90.80 355.89 4,826.76 4,743.87 2,946.34 2,242.03 5,962,075.72 602,048.49 0.68 3,290.90 3_MWD+IFR2+MS+Sag (4) 10,501.78 90.67 356.34 4,825.95 4,743.06 3,009.33 2,237.75 5,962,138.64 602,043.37 0.74 3,352.19 3_MWD+IFR2+MS+Sag (4) 10,565.77 90.30 355.78 4,825.40 4,742.51 3,073.17 2,233.35 5,962,202.41 602,038.13 1.05 3,414.29 3_MWD+IFR2+MS+Sag (4) 10,628.67 90.49 355.62 4,824.97 4,742.08 3,135.89 2,228.64 5,962,265.06 602,032.58 0.39 3,475.24 3_MWD+IFR2+MS+Sag (4) 10,693.10 90.67 355.31 4,824.32 4,741.43 3,200.11 2,223.54 5,962,329.20 602,026.64 0.56 3,537.61 3_MWD+IFR2+MS+Sag (4) 10,756.12 90.92 355.82 4,823.44 4,740.55 3,262.94 2,218.67 5,962,391.95 602,020.93 0.90 3,598.63 3_MWD+IFR2+MS+Sag (4) 21212022 4:53:19PM Page 6 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220 Design: Z-220 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Survey X7 T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 10,819.95 90.74 356.06 4,822.52 4,739.63 3,326.60 2,214.15 5,962,455.55 602,015.57 0.47 3,660.54 3_MWD+IFR2+MS+Sag (4) 10,882.99 93.40 356.60 4,820.24 4,737.35 3,389.46 2,210.12 5,962,518.34 602,010.70 4.31 3,721.75 3_MWD+IFR2+MS+Sag (4) 10,946.73 93.77 356.70 4,816.26 4,733.37 3,452.97 2,206.40 5,962,581.79 602,006.14 0.60 3,783.65 3_MWD+IFR2+MS+Sag (4) 11,010.15 93.64 357.14 4,812.16 4,729.27 3,516.17 2,203.00 5,962,644.93 602,001.90 0.72 3,845.29 3_MWD+IFR2+MS+Sag (4) 11,074.07 92.09 357.29 4,808.96 4,726.07 3,579.93 2,199.90 5,962,708.64 601,997.95 2.44 3,907.55 3_MWD+IFR2+MS+Sag (4) 11,137.72 92.59 357.42 4,806.37 4,723.48 3,643.46 2,196.96 5,962,772.12 601,994.17 0.81 3,969.60 3_MWD+IFR2+MS+Sag (4) 11,201.43 92.28 356.21 4,803.66 4,720.77 3,707.01 2,193.43 5,962,835.61 601,989.79 1.96 4,031.58 3_MWD+IFR2+MS+Sag (4) 11,265.55 90.98 355.25 4,801.83 4,718.94 3,770.92 2,188.66 5,962,899.45 601,984.17 2.52 4,093.69 3_MWD+IFR2+MS+Sag (4) 11,328.34 91.66 356.83 4,800.39 4,717.50 3,833.55 2,184.32 5,962,962.01 601,979.01 2.74 4,154.61 3_MWD+IFR2+MS+Sag (4) 11,392.35 90.73 356.58 4,799.05 4,716.16 3,897.43 2,180.64 5,963,025.83 601,974.48 1.50 4,216.89 3_MWD+IFR2+MS+Sag (4) 11,459.16 90.98 356.29 4,798.06 4,715.17 3,964.11 2,176.49 5,963,092.44 601,969.44 0.57 4,281.83 3_MWD+IFR2+MS+Sag (4) 11,519.21 91.29 356.55 4,796.87 4,713.98 4,024.03 2,172.74 5,963,152.30 601,964.90 0.67 4,340.19 3_MWD+IFR2+MS+Sag (4) 11,583.06 89.81 355.34 4,796.25 4,713.36 4,087.71 2,168.22 5,963,215.91 601,959.54 2.99 4,402.12 3_MWD+IFR2+MS+Sag (4) 11,646.72 89.69 355.98 4,796.53 4,713.64 4,151.19 2,163.41 5,963,279.32 601,953.88 1.02 4,463.80 3_MWD+IFR2+MS+Sag (4) 11,710.07 90.31 354.68 4,796.53 4,713.64 4,214.33 2,158.25 5,963,342.37 601,947.88 2.27 4,525.08 3_MWD+IFR2+MS+Sag (4) 11,773.69 90.06 355.61 4,796.33 4,713.44 4,277.72 2,152.86 5,963,405.68 601,941.66 1.51 4,586.57 3_MWD+IFR2+MS+Sag (4) 11,837.22 88.38 355.31 4,797.19 4,714.30 4,341.04 2,147.84 5,963,468.93 601,935.79 2.69 4,648.06 3_MWD+IFR2+MS+Sag (4) 11,900.72 88.33 355.36 4,799.01 4,716.12 4,404.30 2,142.67 5,963,532.11 601,929.79 0.11 4,709.46 3_MWD+IFR2+MS+Sag (4) 11,964.04 87.96 355.61 4,801.06 4,718.17 4,467.39 2,137.69 5,963,595.12 601,923.97 0.71 4,770.73 3_MWD+IFR2+MS+Sag (4) 12,027.75 88.14 356.89 4,803.23 4,720.34 4,530.93 2,133.53 5,963,658.59 601,918.96 2.03 4,832.58 3_MWD+IFR2+MS+Sag (4) 12,091.69 88.27 357.51 4,805.23 4,722.34 4,594.76 2,130.41 5,963,722.37 601,914.99 0.99 4,894.90 3_MWD+IFR2+MS+Sag (4) 12,155.69 88.02 358.39 4,807.31 4,724.42 4,658.69 2,128.12 5,963,786.25 601,911.85 1.43 4,957.45 3_MWD+IFR2+MS+Sag (4) 12,219.15 88.70 359.89 4,809.12 4,726.23 4,722.11 2,127.17 5,963,849.66 601,910.06 2.59 5,019.75 3_MWD+IFR2+MS+Sag (4) 12,282.82 88.39 0.78 4,810.74 4,727.85 4,785.76 2,127.54 5,963,913.30 601,909.58 1.48 5,082.50 3_MWD+IFR2+MS+Sag (4) 12,346.19 88.45 0.81 4,812.49 4,729.60 4,849.10 2,128.42 5,963,976.64 601,909.62 0.11 5,145.03 3_MWD+IFR2+MS+Sag (4) 12,410.28 88.58 0.39 4,814.15 4,731.26 4,913.16 2,129.09 5,964,040.70 601,909.44 0.69 5,208.23 3_MWD+IFR2+MS+Sag (4) 12,473.16 89.63 1.18 4,815.13 4,732.24 4,976.03 2,129.95 5,964,103.56 601,909.47 2.09 5,270.29 3_MWD+IFR2+MS+Sag (4) 12,536.79 89.56 1.79 4,815.58 4,732.69 5,039.64 2,131.60 5,964,167.18 601,910.27 0.96 5,333.22 3_MWD+IFR2+MS+Sag (4) 12,600.84 89.32 2.76 4,816.21 4,733.32 5,103.63 2,134.14 5,964,231.20 601,911.96 1.56 5,396.69 3_MWD+IFR2+MS+Sag (4) 12,664.24 88.33 2.25 4,817.51 4,734.62 5,166.96 2,136.91 5,964,294.55 601,913.89 1.76 5,459.53 3_MWD+IFR2+MS+Sag (4) 12,728.56 87.46 1.96 4,819.87 4,736.98 5,231.19 2,139.27 5,964,358.80 601,915.40 1.43 5,523.20 3_MWD+IFR2+MS+Sag (4) 12,791.78 87.65 1.79 4,822.57 4,739.68 5,294.32 2,141.34 5,964,421.95 601,916.63 0.40 5,585.72 3_MWD+IFR2+MS+Sag (4) 12,855.38 87.03 1.52 4,825.52 4,742.63 5,357.82 2,143.17 5,964,485.47 601,917.62 1.06 5,648.58 3_MWD+IFR2+MS+Sag (4) 12,917.36 87.28 1.77 4,828.59 4,745.70 5,419.70 2,144.95 5,964,547.36 601,918.57 0.57 5,709.83 3_MWD+IFR2+MS+Sag (4) 12,981.95 88.02 2.23 4,831.24 4,748.35 5,484.20 2,147.20 5,964,611.87 601,919.97 1.35 5,773.74 3_MWD+IFR2+MS+Sag (4) 13,045.44 88.20 2.54 4,833.34 4,750.45 5,547.60 2,149.84 5,964,675.29 601,921.76 0.56 5,836.63 3_MWD+IFR2+MS+Sag (4) 13,108.58 88.08 2.84 4,835.38 4,752.49 5,610.63 2,152.81 5,964,738.36 601,923.89 0.51 5,899.23 3_MWD+IFR2+MS+Sag (4) 13,171.94 88.45 2.91 4,837.30 4,754.41 5,673.88 2,155.98 5,964,801.64 601,926.22 0.59 5,962.07 3_MWD+IFR2+MS+Sag (4) 13,235.79 88.70 2.70 4,838.89 4,756.00 5,737.64 2,159.11 5,964,865.43 601,928.50 0.51 6,025.40 3_MWD+IFR2+MS+Sag (4) 13,299.33 88.82 3.02 4,840.27 4,757.38 5,801.08 2,162.28 5,964,928.90 601,930.83 0.54 6,088.43 3_MWD+IFR2+MS+Sag (4) 21212022 4:53:19PM Page 7 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220 Design: Z-220 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Survey Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/1001) (ft) Survey Tool Name 13,363.03 88.39 3.69 4,841.82 4,758.93 5,864.66 2,166.00 5,964,992.51 601,933.71 1.25 6,151.68 3_MWD+IFR2+MS+Sag (4) 13,426.40 87.83 3.63 4,843.91 4,761.02 5,927.86 2,170.05 5,965,055.76 601,936.91 0.89 6,214.63 3_MWD+IFR2+MS+Sag (4) 13,490.57 87.71 2.67 4,846.40 4,763.51 5,991.89 2,173.57 5,965,119.82 601,939.58 1.51 6,278.29 3_MWD+IFR2+MS+Sag (4) 13,553.19 85.91 6.08 4,849.89 4,767.00 6,054.21 2,178.34 5,965,182.20 601,943.52 6.15 6,340.50 3_MWD+IFR2+MS+Sag (4) 13,617.59 86.17 9.40 4,854.34 4,771.45 6,117.87 2,186.99 5,965,245.96 601,951.33 5.16 6,404.69 3_MWD+IFR2+MS+Sag (4) 13,680.24 86.23 8.03 4,858.49 4,775.60 6,179.66 2,196.46 5,965,307.86 601,959.97 2.18 6,467.18 3_MWD+IFR2+MS+Sag (4) 13,744.62 87.40 6.56 4,862.07 4,779.18 6,243.41 2,204.62 5,965,371.72 601,967.29 2.92 6,531.39 3_MWD+IFR2+MS+Sag (4) 13,808.46 87.40 5.79 4,864.96 4,782.07 6,306.82 2,211.48 5,965,435.20 601,973.30 1.20 6,595.02 3_MWD+IFR2+MS+Sag (4) 13,872.64 87.40 4.01 4,867.88 4,784.99 6,370.69 2,216.96 5,965,499.14 601,977.93 2.77 6,658.88 3_MWD+IFR2+MS+Sag (4) 13,936.09 85.91 2.45 4,871.58 4,788.69 6,433.93 2,220.53 5,965,562.41 601,980.66 3.40 6,721.78 3_MWD+IFR2+MS+Sag (4) 13,998.54 84.86 0.89 4,876.60 4,793.71 6,496.15 2,222.34 5,965,624.64 601,981.65 3.00 6,783.36 3_MWD+IFR2+MS+Sag (4) 14,063.84 85.05 0.54 4,882.34 4,799.45 6,561.19 2,223.15 5,965,689.68 601,981.59 0.61 6,847.56 3_MWD+IFR2+MS+Sag (4) 14,126.88 86.17 0.62 4,887.17 4,804.28 6,624.04 2,223.79 5,965,752.53 601,981.40 1.78 6,909.56 3_MWD+IFR2+MS+Sag (4) 14,190.42 88.46 1.45 4,890.15 4,807.26 6,687.50 2,224.93 5,965,815.99 601,981.70 3.83 6,972.25 3_MWD+IFR2+MS+Sag (4) 14,254.02 90.43 2.23 4,890.76 4,807.87 6,751.06 2,226.98 5,965,879.57 601,982.90 3.33 7,035.20 3_MWD+IFR2+MS+Sag (4) 14,270.00 91.05 2.43 4,890.56 4,807.67 6,767.02 2,227.63 5,965,895.54 601,983.33 4.08 7,051.04 3_MWD+IFR2+MS+Sag (5) 14,318.30 90.24 3.88 4,890.01 4,807.12 6,815.25 2,230.28 5,965,943.79 601,985.35 3.44 7,098.99 3_MWD+IFR2+MS+Sag (5) 14,381.45 90.55 6.05 4,889.58 4,806.69 6,878.15 2,235.75 5,966,006.76 601,989.98 3.47 7,161.89 3_MWD+IFR2+MS+Sag (5) 14,445.04 92.53 6.67 4,887.87 4,804.98 6,941.33 2,242.79 5,966,070.01 601,996.18 3.26 7,225.33 3_MWD+IFR2+MS+Sag (5) 14,508.27 94.14 6.73 4,884.19 4,801.30 7,004.01 2,250.15 5,966,132.79 602,002.71 2.55 7,288.34 3_MWD+IFR2+MS+Sag (5) 14,572.61 95.44 5.93 4,878.82 4,795.93 7,067.74 2,257.22 5,966,196.59 602,008.93 2.37 7,352.33 3_MWD+IFR2+MS+Sag (5) 14,635.43 97.24 5.75 4,871.88 4,788.99 7,129.85 2,263.58 5,966,258.78 602,014.46 2.88 7,414.59 3_MWD+IFR2+MS+Sag (5) 14,699.47 97.30 5.83 4,863.78 4,780.89 7,193.05 2,269.99 5,966,322.05 602,020.03 0.16 7,477.95 3_MWD+IFR2+MS+Sag (5) 14,763.62 97.17 5.34 4,855.70 4,772.81 7,256.38 2,276.18 5,966,385.46 602,025.38 0.78 7,541.40 3_MWD+IFR2+MS+Sag (5) 14,826.46 97.24 4.00 4,847.82 4,764.93 7,318.52 2,281.25 5,966,447.65 602,029.63 2.12 7,603.47 3_MWD+IFR2+MS+Sag (5) 14,889.51 96.05 3.29 4,840.52 4,757.63 7,381.02 2,285.24 5,966,510.19 602,032.78 2.19 7,665.71 3_MWD+IFR2+MS+Sag (5) 14,952.74 96.30 3.79 4,833.72 4,750.83 7,443.76 2,289.12 5,966,572.97 602,035.82 0.88 7,728.17 3_MWD+IFR2+MS+Sag (5) 15,016.32 94.32 3.77 4,827.83 4,744.94 7,506.93 2,293.29 5,966,636.19 602,039.16 3.11 7,791.11 3_MWD+IFR2+MS+Sag (5) 15,080.80 92.52 3.89 4,823.99 4,741.10 7,571.15 2,297.59 5,966,700.45 602,042.60 2.80 7,855.10 3_MWD+IFR2+MS+Sag (5) 15,144.24 92.41 3.55 4,821.26 4,738.37 7,634.39 2,301.70 5,966,763.74 602,045.87 0.56 7,918.10 3_MWD+IFR2+MS+Sag (5) 15,206.89 89.93 3.31 4,819.98 4,737.09 7,696.91 2,305.45 5,966,826.30 602,048.79 3.98 7,980.32 3_MWD+IFR2+MS+Sag (5) 15,271.59 90.24 2.68 4,819.88 4,736.99 7,761.52 2,308.83 5,966,890.94 602,051.31 1.09 8,044.53 3_MWD+IFR2+MS+Sag (5) 15,335.36 90.00 3.11 4,819.75 4,736.86 7,825.21 2,312.05 5,966,954.66 602,053.68 0.77 8,107.81 3_MWD+IFR2+MS+Sag (5) 15,398.94 90.31 3.45 4,819.58 4,736.69 7,888.69 2,315.69 5,967,018.18 602,056.48 0.72 8,170.96 3_MWD+IFR2+MS+Sag (5) 15,462.40 88.01 3.72 4,820.51 4,737.62 7,952.01 2,319.66 5,967,081.54 602,059.60 3.65 8,234.01 3_MWD+IFR2+MS+Sag (5) 15,525.77 86.72 4.21 4,823.42 4,740.53 8,015.16 2,324.03 5,967,144.74 602,063.14 2.18 8,296.96 3_MWD+IFR2+MS+Sag (5) 15,589.23 86.66 5.25 4,827.09 4,744.20 8,078.30 2,329.26 5,967,207.94 602,067.53 1.64 8,360.04 3_MWD+IFR2+MS+Sag (5) 15,652.87 86.97 6.09 4,830.62 4,747.73 8,141.53 2,335.53 5,967,271.24 602,072.96 1.41 8,423.40 3_MWD+IFR2+MS+Sag (5) 15,716.49 87.22 6.97 4,833.85 4,750.96 8,204.66 2,342.76 5,967,334.45 602,079.35 1.44 8,486.83 3_MWD+IFR2+MS+Sag (5) 15,780.40 87.40 7.04 4,836.85 4,753.96 8,268.02 2,350.55 5,967,397.90 602,086.29 0.30 8,550.58 3_MWD+IFR2+MS+Sag (5) 21212022 4:53:19PM Page 8 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220 Design: Z-220 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Survey V Map Map MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) - 15,844.02 85.73 6.81 4,840.66 4,757.77 8,331.06 2,358.20 5,967,461.03 602,093.11 15,906.81 85.79 6.73 4,845.30 4,762.41 8,393.24 2,365.58 5,967,523.30 602,099.66 15,965.94 86.17 6.53 4,849.45 4,766.56 8,451.83 2,372.39 5,967,581.97 602,105.69 16,035.04 85.61 6.05 4,854.40 4,771.51 8,520.34 2,379.95 5,967,650.57 602,112.33 16,098.71 86.79 5.69 4,858.62 4,775.73 8,583.53 2,386.44 5,967,713.84 602,117.99 16,160.72 87.28 5.61 4,861.83 4,778.94 8,645.16 2,392.54 5,967,775.53 602,123.27 16,224.51 86.91 5.83 4,865.06 4,782.17 8,708.55 2,398.89 5,967,839.00 602,128.77 16,288.07 87.15 5.71 4,868.35 4,785.46 8,771.70 2,405.27 5,967,902.22 602,134.31 16,351.48 87.28 5.93 4,871.43 4,788.54 8,834.71 2,411.69 5,967,965.31 602,139.90 16,414.49 87.65 5.95 4,874.22 4,791.33 8,897.32 2,418.21 5,968,027.99 602,145.58 16,477.74 87.46 5.77 4,876.92 4,794.03 8,960.18 2,424.66 5,968,090.93 602,151.20 16,541.54 88.08 5.49 4,879.40 4,796.51 9,023.63 2,430.91 5,968,154.45 602,156.61 16,606.83 88.08 4.93 4,881.59 4,798.70 9,088.61 2,436.84 5,968,219.50 602,161.67 16,669.36 88.27 4.78 4,883.58 4,800.69 9,150.89 2,442.13 5,968,281.83 602,166.13 16,733.54 89.13 5.32 4,885.04 4,802.15 9,214.80 2,447.78 5,968,345.81 602,170.93 16,796.84 89.75 5.18 4,885.65 4,802.76 9,277.83 2,453.57 5,968,408.90 602,175.88 16,860.96 90.24 5.60 4,885.66 4,802.77 9,341.67 2,459.59 5,968,472.81 602,181.05 16,924.05 88.82 6.52 4,886.18 4,803.29 9,404.40 2,466.25 5,968,535.62 602,186.88 16,987.38 88.76 6.89 4,887.51 4,804.62 9,467.28 2,473.64 5,968,598.59 602,193.43 17,051.52 90.12 5.76 4,888.14 4,805.25 9,531.03 2,480.71 5,968,662.42 602,199.65 17,115.48 89.87 4.99 4,888.15 4,805.26 9,594.70 2,486.70 5,968,726.16 602,204.80 17,178.13 87.77 4.22 4,889.44 4,806.55 9,657.13 2,491.73 5,968,788.65 602,208.99 17,241.93 85.91 4.20 4,892.95 4,810.06 9,720.66 2,496.41 5,968,852.23 602,212.83 17,305.51 86.22 4.45 4,897.32 4,814.43 9,783.91 2,501.19 5,968,915.53 602,216.77 17,369.50 85.11 3.74 4,902.15 4,819.26 9,847.55 2,505.75 5,968,979.22 602,220.48 17,432.83 86.29 4.55 4,906.90 4,824.01 9,910.54 2,510.31 5,969,042.26 602,224.21 17,496.24 88.46 6.04 4,909.81 4,826.92 9,973.61 2,516.16 5,969,105.39 602,229.21 17,559.19 88.08 7.19 4,911.71 4,828.82 10,036.11 2,523.40 5,969,167.98 602,235.63 17,621.37 88.14 8.04 4,913.76 4,830.87 10,097.71 2,531.64 5,969,229.67 602,243.05 17,691.00 88.14 8.04 4,916.02 4,833.13 10,166.62 2,541.37 5,969,298.70 602,251.86 I Vertical DLS Section (°/100') (ft) Survey Tool Name 2.65 8,613.99 3_MWD+IFR2+MS+Sag (5) 0.16 8,676.51 3_MWD+IFR2+MS+Sag (5) 0.73 8,735.39 3_MWD+IFR2+MS+Sag (5) 1.07 8,804.17 3_MWD+IFR2+MS+Sag (5) 1.94 8,867.53 3_MWD+IFR2+MS+Sag (5) 0.80 8,929.28 3_MWD+IFR2+MS+Sag (5) 0.67 8,992.81 3_MWD+IFR2+MS+Sag (5) 0.42 9,056.11 3_MWD+IFR2+MS+Sag (5) 0.40 9,119.28 3_MWD+IFR2+MS+Sag (5) 0.59 9,182.07 3_MWD+IFR2+MS+Sag (5) 0.41 9,245.10 3_MWD+IFR2+MS+Sag (5) 1.07 9,308.66 3_MWD+IFR2+MS+Sag (5) 0.86 9,373.69 3_MWD+IFR2+MS+Sag (5) 0.39 9,435.93 3_MWD+IFR2+MS+Sag (5) 1.58 9,499.86 3_MWD+IFR2+MS+Sag (5) 1.00 9,562.94 3_MWD+IFR2+MS+Sag (5) 1.01 9,626.85 3_MWD+IFR2+MS+Sag (5) 2.68 9,689.79 3_MWD+IFR2+MS+Sag (5) 0.59 9,753.00 3_MWD+IFR2+MS+Sag (5) 2.76 9,817.00 3_MWD+IFR2+MS+Sag (5) 1.27 9,880.75 3_MWD+IFR2+MS+Sag (5) 3.57 9,943.11 3_MWD+IFR2+MS+Sag (5) 2.92 10,006.48 3_MWD+IFR2+MS+Sag (5) 0.63 10,069.60 3_MWD+IFR2+MS+Sag (5) 2.06 10,133.07 3_MWD+IFR2+MS+Sag (5) 2.26 10,195.89 3_MWD+IFR2+MS+Sag (5) 4.15 10,259.01 3_MWD+IFR2+MS+Sag (5) 1.92 10,321.82 3_MWD+IFR2+MS+Sag (5) 1.37 10,383.91 3_MWD+IFR2+MS+Sag (5) 0.00 10,453.47 PROJECTED to TD Digitallysigned by Chelsea Digitally signed by Benjamin Hand 02-07-2022 Checked By:Chelsea Wright n igh;n»mm,a.c°.n _n Approved By: Benjamin Hand Date: 2022.02.0310:18:23-09'00' Date. 21212022 4:53:19PM Page 9 COMPASS 5000.15 Build 91E Hilcorp North Prudhoe Bay Z Z-220PB1 500292370570 Slope, LLC Sperry Drilling Definitive Survey Report 02 February, 2022 HALLIBURTON Sperry Drilling Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220PB1 Design: Z-220PB1 Local Co-ordinate Reference: Well Z-220 TVD Reference: Z-220 Actual RKB @ 82.89usft MD Reference: Z-220 Actual RKB @ 82.89usft North Reference: True Survey Calculation Method: Minimum Curvature Database: NORTH US + CANADA )roject Prudhoe Bay, North Slope, UNITED STATES flap System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level 3eo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point flap Zone: Alaska Zone 04 Using geodetic scale factor Well Z-220, Slot SIB Well Position +N/-S 0.00 usft Northing: +E/-W 0.00 usft Easting: Position Uncertainty 0.50 usft Wellhead Elevation: Wellbore Magnetics Design Audit Notes: Version: Vertical Section Z-220PB1 Model Name 1 IM Z-220P61 Sample Date 1 /9n/M99 5,959,100.12usf Latitude: 70° 17' 51.634 N 599,846.00 usf Longitude: 149° 11' 29.155 W usfl Ground Level: 56.10usft Declination 15.44 Dip Angle Field Strength (°)mi (nT) 80.73 57,248.30000000 1.0 Phase: ACTUAL Tie On Depth: 26.79 Depth From (TVD) +N/-S +E/-W Direction (usft) (usft) (usft) , , (°) 26.79 0.00 0.00 10.00 Survey Program Date 1/24/2022 llvpp� From To (usft) (usft) Survey (Wellbore) Tool Name Description Survey Date 179.37 866.30 Z-220PB1 GWD Gyro (Z-220P61) GYD_Quest GWD Gyrodata Stationary SPEAR GWD tool in open 12/30/2021 917.65 5,876.96 Z-220PB1 MWD+IFR2+MS+Sag (1) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + so 01/11/2022 5,893.80 12,837.96 Z-220PB1 MWD+IFR2+MS+Sag (2) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + so 01/20/2022 Survey Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 26.79 0.00 0.00 26.79 -56.10 0.00 0.00 5,959,100.12 699,846.00 0.00 0.00 UNDEFINED 179.37 0.09 339.14 179.37 96.48 0.11 -0.04 5,959,100.23 599,845.96 0.06 0.10 GYD_Quest GWD (1) 240.10 0.09 125.40 240.10 157.21 0.13 -0.02 5,959,100.25 599,845.98 0.28 0.12 GYD_Quest GWD (1) 303.10 1.32 217.91 303.09 220.20 -0.47 -0.43 5,959,099.64 599,845.58 2.11 -0.54 GYD_Quest GWD (1) 364.17 3.66 216.85 364.10 281.21 -2.59 -2.03 5,959,097.51 599,844.01 3.83 -2.90 GYD_Quest GWD (1) 426.92 5.05 222.84 426.67 343.78 -6.22 -5.11 5,959,093.84 599,840.98 2.33 -7.01 GYD_Quest GWD (1) 489.01 6.28 218.97 488.46 405.57 -10.86 -9.10 5,959,089.14 599,837.04 2.07 -12.27 GYD_Quest GWD (1) 550.96 8.03 224.96 549.92 467.03 -16.56 -14.29 5,959,083.38 599,831.93 3.07 -18.79 GYD_Quest GWD (1) 612.20 10.38 222.31 610.37 527.48 -23.66 -21.03 5,959,076.18 599,825.29 3.90 -26.96 GYD_Quest GWD (1) 674.16 13.35 213.50 671.00 588.11 -33.76 -28.73 5,959,065.98 599,817.72 5.60 -38.24 GYD_Quest GWD (1) 739.08 15.98 218.61 733.81 650.92 -47.00 -38.45 5,959,052.62 599,808.18 4.51 -52.96 GYD_Quest GWD (1) 802.24 18.19 217.38 794.18 711.29 -61.62 -49.86 5,959,037.84 599,796.97 3.55 -69.35 GYD_Quest GWD (1) 21212022 4:10:39PM Page 2 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB1 Survey Calculation Method: Minimum Curvature Design: �Z-220PB1 Database: NORTH US + CANADA Survey Rw -T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (*/1001) (ft) Survey Tool Name 866.30 20.05 218.44 854.70 771.81 -78.17 -62.76 5,959,021.13 599,784.29 2.95 -87.88 GYD_Quest GWD (1) 917.65 21.64 217.84 902.69 819.80 -92.55 -74.04 5,959,006.61 599,773.20 3.12 -104.00 3_MWD+IFR2+MS+Sag (2) 981.32 22.97 218.45 961.59 878.70 -111.55 -88.97 5,958,987.41 599,758.53 2.12 -125.30 3_MWD+IFR2+MS+Sag (2) 1,045.46 26.04 219.84 1,019.95 937.06 -132.16 -105.78 5,958,966.57 599,742.00 4.87 -148.52 3_MWD+IFR2+MS+Sag (2) 1,109.03 28.40 221.95 1,076.47 993.58 -154.12 -124.82 5,958,944.36 599,723.25 4.01 -173.46 3_MWD+IFR2+MS+Sag (2) 1,172.58 30.13 220.54 1,131.91 1,049.02 -177.49 -145.30 5,958,920.73 599,703.09 2.93 -200.02 3_MWD+IFR2+MS+Sag (2) 1,236.23 34.37 219.74 1,185.73 1,102.84 -203.46 -167.18 5,958,894.48 599,681.56 6.69 -229.39 3_MWD+IFR2+MS+Sag (2) 1,299.65 37.53 220.90 1,237.06 1,154.17 -231.83 -191.27 5,958,865.79 599,657.84 5.10 -261.52 3_MWD+IFR2+MS+Sag (2) 1,362.34 39.56 220.86 1,286.09 1,203.20 -261.36 -216.84 5,958,835.92 599,632.67 3.24 -295.05 3_MWD+IFR2+MS+Sag (2) 1,427.26 41.68 221.22 1,335.37 1,252.48 -293.24 -244.59 5,958,803.68 599,605.35 3.29 -331.26 3_MWD+IFR2+MS+Sag (2) 1,491.05 42.06 221.55 1,382.87 1,299.98 -325.18 -272.74 5,958,771.37 599,577.63 0.69 -367.60 3_MWD+IFR2+MS+Sag (2) 1,554.50 40.63 220.35 1,430.50 1,347.61 -356.83 -300.21 5,958,739.36 599,550.58 2.58 -403.54 3_MWD+IFR2+MS+Sag (2) 1,618.32 39.59 220.25 1,479.31 1,396.42 -388.19 -326.81 5,958,707.66 599,524.41 1.63 -439.04 3_MWD+IFR2+MS+Sag (2) 1,681.65 39.77 220.85 1,528.05 1,445.16 -418.92 -353.09 5,958,676.59 599,498.53 0.67 -473.86 3_MWD+IFR2+MS+Sag (2) 1,742.96 39.43 220.82 1,575.29 1,492.40 -448.48 -378.65 5,958,646.69 599,473.38 0.56 -507.42 3_MWD+IFR2+MS+Sag (2) 1,808.19 40.11 220.48 1,625.43 1,542.54 -480.14 -405.83 5,958,614.67 599,446.62 1.09 -543.32 3_MWD+IFR2+MS+Sag (2) 1,871.74 40.91 220.65 1,673.75 1,590.86 -511.50 -432.68 5,958,582.96 599,420.20 1.27 -578.86 3_MWD+IFR2+MS+Sag (2) 1,935.08 41.95 220.21 1,721.24 1,638.35 -543.41 -459.85 5,958,550.70 599,393.45 1.71 -615.00 3_MWD+IFR2+MS+Sag (2) 1,998.39 40.64 220.64 1,768.80 1,685.91 -575.21 -486.94 5,958,518.54 599,366.78 2.12 -651.03 3_MWD+IFR2+MS+Sag (2) 2,062.85 42.33 220.06 1,817.09 1,734.20 -607.75 -514.59 5,958,485.64 599,339.58 2.69 -687.88 3_MWD+IFR2+MS+Sag (2) 2,125.24 42.65 220.20 1,863.10 1,780.21 -639.98 -541.75 5,958,453.06 599,312.85 0.53 -724.33 3_MWD+IFR2+MS+Sag (2) 2,188.42 41.49 220.36 1,909.99 1,827.10 -672.27 -569.12 5,958,420.41 599,285.91 1.84 -760.88 3_MWD+IFR2+MS+Sag (2) 2,252.12 42.50 220.72 1,957.34 1,874.45 -704.66 -596.82 5,958,387.66 599,258.65 1.63 -797.59 3_MWD+IFR2+MS+Sag (2) 2,315.18 42.50 220.50 2,003.83 1,920.94 -737.00 -624.55 5,958,354.95 599,231.35 0.24 -834.26 3_MWD+IFR2+MS+Sag (2) 2,379.04 42.76 221.46 2,050.81 1,967.92 -769.65 -652.91 5,958,321.93 599,203.43 1.10 -871.33 3_MWD+IFR2+MS+Sag (2) 2,442.90 42.60 221.98 2,097.76 2,014.87 -801.96 -681.72 5,958,289.24 599,175.05 0.61 -908.16 3_MWD+IFR2+MS+Sag (2) 2,506.46 42.32 220.80 2,144.65 2,061.76 -834.15 -710.09 5,958,256.68 599,147.12 1.33 -944.78 3_MWD+IFR2+MS+Sag (2) 2,569.84 42.51 220.28 2,191.44 2,108.55 -866.64 -737.88 5,958,223.83 599,119.77 0.63 -981.60 3_MWD+IFR2+MS+Sag (2) 2,633.68 41.67 220.64 2,238.82 2,155.93 -899.20 -765.64 5,958,190.91 599,092.44 1.37 -1,018.49 3_MWD+IFR2+MS+Sag (2) 2,697.66 41.29 220.87 2,286.75 2,203.86 -931.30 -793.31 5,958,158.45 599,065.20 0.64 -1,054.91 3_MWD+IFR2+MS+Sag (2) 2,761.49 39.40 220.07 2,335.40 2,252.51 -962.73 -820.13 5,958,126.67 599,038.80 3.07 -1,090.52 3_MWD+IFR2+MS+Sag (2) 2,824.91 39.74 219.51 2,384.29 2,301.40 -993.77 -845.99 5,958,095.28 599,013.37 0.78 -1,125.58 3_MWD+IFR2+MS+Sag (2) 2,889.05 39.94 220.58 2,433.54 2,350.65 -1,025.23 -872.42 5,958,063.48 598,987.35 1.11 -1,161.15 3_MWD+IFR2+MS+Sag (2) 2,952.13 39.88 221.70 2,481.92 2,399.03 -1,055.71 -899.05 5,958,032.66 598,961.14 1.14 -1,195.79 3_MWD+IFR2+MS+Sag (2) 3,015.70 40.17 222.60 2,530.60 2,447.71 -1,086.02 -926.48 5,958,001.99 598,934.11 1.02 -1,230.40 3_MWD+IFR2+MS+Sag (2) 3,079.87 39.21 221.65 2,579.98 2,497.09 -1,116.41 -953.97 5,957,971.24 598,907.03 1.77 -1,265.10 3_MWD+IFR2+MS+Sag (2) 3,143.19 37.72 221.09 2,629.56 2,546.67 -1,145.96 -980.01 5,957,941.34 598,881.39 2.42 -1,298.73 3_MWD+IFR2+MS+Sag (2) 3,206.80 35.84 219.62 2,680.51 2,597.62 -1,174.98 -1,004.67 5,957,912.01 598,857.11 3.26 -1,331.59 3_MWD+IFR2+MS+Sag (2) 3,270.80 32.76 217.95 2,733.37 2,650.48 -1,203.07 -1,027.28 5,957,883.62 598,834.89 5.03 -1,363.18 3_MWD+IFR2+MS+Sag (2) 3,334.30 30.08 216.57 2,787.56 2,704.67 -1,229.40 -1,047.33 5,957,857.02 598,815.19 4.37 -1,392.59 3_MWD+IFR2+MS+Sag (2) ZV2022 4:10:39PM Page 3 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220PB1 Design: �Z-220PB1 Survey V Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (*/100,) (ft) Survey Tool Name 3,398.21 28.22 214.24 2,843.37 2,760.48 -1,254.76 -1,065.37 5,957,831.43 598,797.48 3.41 -1,420.70 3_MWD+IFR2+MS+Sag (2) 3,461.96 25.81 212.95 2,900.16 2,817.27 -1,278.87 -1,081.41 5,957,807.11 598,781.77 3.89 -1,447.23 3_MWD+IFR2+MS+Sag (2) 3,525.50 22.79 211.56 2,958.07 2,875.18 -1,300.97 -1,095.37 5,957,784.83 598,768.10 4.84 -1,471.41 3_MWD+IFR2+MS+Sag (2) 3,589.22 19.71 210.22 3,017.45 2,934.56 -1,320.77 -1,107.24 5,957,764.87 598,756.50 4.89 -1,492.98 3_MWD+IFR2+MS+Sag (2) 3,652.87 17.23 207.64 3,077.81 2,994.92 -1,338.40 -1,117.02 5,957,747.11 598,746.96 4.10 -1,512.04 3_MWD+IFR2+MS+Sag (2) 3,715.21 14.18 206.09 3,137.82 3,054.93 -1,353.44 -1,124.66 5,957,731.97 598,739.51 4.94 -1,528.18 3_MWD+IFR2+MS+Sag (2) 3,777.80 11.49 200.77 3,198.84 3,115.95 -1,366.16 -1,130.25 5,957,719.19 598,734.10 4.69 -1,541.67 3_MWD+IFR2+MS+Sag (2) 3,842.50 8.85 194.83 3,262.52 3,179.63 -1,377.00 -1,133.81 5,957,708.30 598,730.69 4.39 -1,552.96 3_MWD+IFR2+MS+Sag (2) 3,906.45 6.66 180.00 3,325.89 3,243.00 -1,385.47 -1,135.07 5,957,699.82 598,729.54 4.61 -1,561.52 3_MWD+IFR2+MS+Sag (2) 3,970.45 6.11 153.13 3,389.51 3,306.62 -1,392.22 -1,133.53 5,957,693.09 598,731.17 4.70 -1,567.90 3_MWD+IFR2+MS+Sag (2) 4,033.41 7.16 123.62 3,452.06 3,369.17 -1,397.38 -1,128.74 5,957,687.99 598,736.02 5.59 -1,572.15 3_MWD+IFR2+MS+Sag (2) 4,096.72 8.71 97.18 3,514.78 3,431.89 -1,400.16 -1,120.70 5,957,685.32 598,744.10 6.19 -1,573.50 3_MWD+IFR2+MS+Sag (2) 4,160.70 11.04 79.50 3,577.83 3,494.94 -1,399.65 -1,109.87 5,957,685.97 598,764.92 5.94 -1,571.12 3_MWD+IFR2+MS+Sag (2) 4,223.73 13.76 74.73 3,639.38 3,556.49 -1,396.58 -1,096.70 5,957,689.22 598,768.05 4.61 -1,565.80 3_MWD+IFR2+MS+Sag (2) 4,287.58 16.23 69.87 3,701.06 3,618.17 -1,391.51 -1,080.99 5,957,694.50 598,783.69 4.34 -1,558.08 3_MWD+IFR2+MS+Sag (2) 4,351.23 18.03 65.23 3,761.88 3,678.99 -1,384.32 -1,063.69 5,957,701.92 598,800.88 3.55 -1,547.99 3_MWD+IFR2+MS+Sag (2) 4,414.64 20.11 61.25 3,821.81 3,738.92 -1,374.96 -1,045.22 5,957,711.52 598,819.23 3.87 -1,535.57 3_MWD+IFR2+MS+Sag (2) 4,478.13 22.09 59.33 3,881.04 3,798.15 -1,363.62 -1,025.38 5,957,723.12 598,838.91 3.30 -1,520.96 3_MWD+IFR2+MS+Sag (2) 4,542.00 24.37 57.22 3,939.73 3,856.84 -1,350.36 -1,003.97 5,957,736.66 598,860.14 3.80 -1,504.18 3_MWD+IFR2+MS+Sag (2) 4,605.09 26.64 54.13 3,996.67 3,913.78 -1,335.02 -981.56 5,957,752.30 598,882.35 4.17 -1,485.19 3_MWD+IFR2+MS+Sag (2) 4,668.85 29.98 52.44 4,052.80 3,969.91 -1,316.93 -957.34 5,957,770.71 598,906.32 5.39 -1,463.16 3_MWD+IFR2+MS+Sag (2) 4,732.50 32.73 52.49 4,107.15 4,024.26 -1,296.75 -931.08 5,957,791.23 598,932.31 4.32 -1,438.73 3_MWD+IFR2+MS+Sag (2) 4,796.11 35.44 52.23 4,159.83 4,076.94 -1,274.98 -902.86 5,957,813.37 598,960.24 4.27 -1,412.39 3_MWD+IFR2+MS+Sag (2) 4,860.22 37.64 52.77 4,211.33 4,128.44 -1,251.75 -872.58 5,957,837.00 598,990.21 3.47 -1,384.25 3_MWD+IFR2+MS+Sag (2) 4,924.05 40.06 52.73 4,261.04 4,178.15 -1,227.51 -840.71 5,957,861.66 599,021.75 3.78 -1,354.85 3_MWD+IFR2+MS+Sag (2) 4,987.52 42.61 51.76 4,308.69 4,225.80 -1,201.84 -807.57 5,957,887.76 599,054.54 4.15 -1,323.81 3_MWD+IFR2+MS+Sag (2) 5,050.94 45.63 50.92 4,354.22 4,271.33 -1,174.25 -773.11 5,957,915.80 599,088.63 4.84 -1,290.66 3_MWD+IFR2+MS+Sag (2) 5,115.10 49.70 49.84 4,397.42 4,314.53 -1,144.01 -736.60 5,957,946.53 599,124.73 6.47 -1,254.54 3_MWD+IFR2+MS+Sag (2) 5,178.29 51.34 49.64 4,437.60 4,354.71 -1,112.49 -699.38 5,957,978.54 599,161.52 2.61 -1,217.03 3_MWD+IFR2+MS+Sag (2) 5,242.40 53.96 48.69 4,476.48 4,393.59 -1,079.16 -660.83 5,958,012.37 599,199.62 4.26 -1,177.52 3_MWD+IFR2+MS+Sag (2) 5,305.75 58.41 47.99 4,511.73 4,428.84 -1,044.18 -621.53 5,958,047.87 599,238.46 7.08 -1,136.24 3_MWD+IFR2+MS+Sag (2) 5,369.06 60.92 47.97 4,543.71 4,460.82 -1,007.60 -580.93 5,958,084.98 599,278.55 3.96 -1,093.17 3_MWD+IFR2+MS+Sag (2) 5,432.28 63.66 47.37 4,573.11 4,490.22 -969.91 -539.57 5,958,123.21 599,319.41 4.41 -1,048.87 3_MWD+IFR2+MS+Sag (2) 5,496.51 66.30 47.20 4,600.27 4,517.38 -930.43 -496.81 5,958,163.25 599,361.64 4.13 -1,002.57 3_MWD+IFR2+MS+Sag (2) 5,559.94 69.89 47.31 4,623.92 4,541.03 -890.50 -453.60 5,958,203.75 599,404.31 5.66 -955.74 3_MWD+IFR2+MS+Sag (2) 5,623.77 72.55 47.76 4,644.47 4,561.58 -849.70 -409.02 5,958,245.13 599,448.34 4.22 -907.82 3_MWD+IFR2+MS+Sag (2) 5,686.75 75.00 48.38 4,662.07 4,579.18 -809.30 -364.03 5,958,286.13 599,492.79 4.00 -860.22 3_MWD+IFR2+MS+Sag (2) 5,750.29 78.80 48.28 4,676.47 4,593.58 -768.17 -317.81 5,958,327.87 599,538.45 5.98 -811.68 3_MWD+IFR2+MS+Sag (2) 5,813.72 83.36 48.26 4,686.30 4,603.41 -726.47 -271.05 5,958,370.18 599,584.65 7.19 -762.50 3_MWD+IFR2+MS+Sag (2) 5,876.96 84.73 47.74 4,692.87 4,609.98 -684.38 -224.31 5,958,412.88 599,630.82 2.31 -712.94 3_MWD+IFR2+MS+Sag (2) ZV2022 4:10:39PM Page 4 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB1 Survey Calculation Method: Minimum Curvature Design: �Z-220PB1 Database: NORTH US + CANADA Survey I Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100-) (ft) Survey Tool Name 5,893.80 84.85 47.73 4,694.40 4,611.51 -673.10 -211.90 5,958,424.32 599,643.08 0.73 -699.67 3_MWD+IFR2+MS+Sag (3) 5,986.09 85.12 48.24 4,702.46 4,619.57 -611.57 -143.60 5,958,486.75 599,710.55 0.62 -627.21 3_MWD+IFR2+MS+Sag (3) 6,050.40 85.36 48.04 4,707.80 4,624.91 -568.80 -95.87 5,958,530.14 599,757.71 0.49 -576.81 3_MWD+IFR2+MS+Sag (3) 6,114.10 85.11 47.40 4,713.09 4,630.20 -526.10 -48.90 5,958,573.47 599,804.10 1.08 -526.59 3_MWD+IFR2+MS+Sag (3) 6,177.64 86.35 46.48 4,717.82 4,634.93 -482.83 -2.60 5,958,617.34 599,849.81 2.43 -475.95 3_MWD+IFR2+MS+Sag (3) 6,241.21 86.72 44.94 4,721.66 4,638.77 -438.53 42.81 5,958,662.24 599,894.63 2.49 -424.43 3_MWD+IFR2+MS+Sag (3) 6,305.02 88.64 42.79 4,724.25 4,641.36 -392.56 86.99 5,958,708.78 599,938.19 4.52 -371.49 3_MWD+IFR2+MS+Sag (3) 6,368.73 88.70 42.52 4,725.73 4,642.84 -345.72 130.15 5,958,756.19 599,980.72 0.43 -317.87 3_MWD+IFR2+MS+Sag (3) 6,432.31 87.59 41.27 4,727.79 4,644.90 -298.42 172.58 5,958,804.05 600,022.52 2.63 -263.92 3_MWD+IFR2+MS+Sag (3) 6,495.61 85.05 41.83 4,731.85 4,648.96 -251.15 214.48 5,958,851.86 600,063.77 4.11 -210.09 3_MWD+IFR2+MS+Sag (3) 6,559.61 84.43 44.09 4,737.72 4,654.83 -204.51 257.90 5,958,899.07 600,106.58 3.65 -156.62 3_MWD+IFR2+MS+Sag (3) 6,622.36 84.31 46.12 4,743.87 4,660.98 -160.44 302.14 5,958,943.72 600,150.22 3.23 -105.54 3_MWD+IFR2+MS+Sag (3) 6,686.56 85.05 46.08 4,749.82 4,666.93 -116.11 348.20 5,958,988.65 600,195.68 1.15 -53.89 3_MWD+IFR2+MS+Sag (3) 6,749.70 86.17 46.52 4,754.66 4,671.77 -72.62 393.71 5,959,032.74 600,240.61 1.91 -3.15 3_MWD+IFR2+MS+Sag (3) 6,813.59 87.09 45.87 4,758.41 4,675.52 -28.47 439.74 5,959,077.49 600,286.04 1.76 48.32 3_MWD+IFR2+MS+Sag (3) 6,876.70 87.34 46.17 4,761.48 4,678.59 15.30 485.10 5,959,121.86 600,330.81 0.62 99.30 3_MWD+IFR2+MS+Sag (3) 6,939.91 87.34 46.24 4,764.41 4,681.52 59.00 530.68 5,959,166.16 600,375.80 0.11 150.25 3_MWD+IFR2+MS+Sag (3) 7,003.56 87.53 45.96 4,767.26 4,684.37 103.09 576.49 5,959,210.85 600,421.02 0.53 201.63 3_MWD+IFR2+MS+Sag (3) 7,067.16 88.52 46.76 4,769.45 4,686.56 146.95 622.49 5,959,255.32 600,466.43 2.00 252.82 3_MWD+IFR2+MS+Sag (3) 7,130.62 90.18 47.56 4,770.17 4,687.28 190.10 669.02 5,959,299.07 600,512.38 2.90 303.39 3_MWD+IFR2+MS+Sag (3) 7,193.83 90.00 48.05 4,770.07 4,687.18 232.55 715.85 5,959,342.14 600,558.63 0.83 353.33 3_MWD+IFR2+MS+Sag (3) 7,257.42 88.39 46.59 4,770.97 4,688.08 275.66 762.59 5,959,385.86 600,604.79 3.42 403.89 3_MWD+IFR2+MS+Sag (3) 7,320.97 88.08 45.41 4,772.93 4,690.04 319.78 808.28 5,959,430.58 600,649.89 1.92 455.28 3_MWD+IFR2+MS+Sag (3) 7,384.03 87.65 44.28 4,775.27 4,692.38 364.46 852.72 5,959,475.84 600,693.73 1.92 506.99 3_MWD+IFR2+MS+Sag (3) 7,447.91 87.22 44.17 4,778.13 4,695.24 410.19 897.23 5,959,522.16 600,737.62 0.69 559.76 3_MWD+IFR2+MS+Sag (3) 7,511.36 89.26 45.30 4,780.08 4,697.19 455.24 941.86 5,959,567.79 600,781.65 3.67 611.87 3_MWD+IFR2+MS+Sag (3) 7,574.86 89.32 45.92 4,780.87 4,697.98 499.65 987.24 5,959,612.80 600,826.43 0.98 663.49 3_MWD+IFR2+MS+Sag (3) 7,638.40 89.81 45.84 4,781.35 4,698.46 543.89 1,032.85 5,959,657.63 600,871.44 0.78 714.98 3_MWD+IFR2+MS+Sag (3) 7,702.68 89.93 45.34 4,781.50 4,698.61 588.87 1,078.77 5,959,703.22 600,916.76 0.80 767.25 3_MWD+IFR2+MS+Sag (3) 7,766.02 90.24 45.51 4,781.40 4,698.51 633.32 1,123.89 5,959,748.26 600,961.28 0.56 818.86 3_MWD+IFR2+MS+Sag (3) 7,829.93 90.00 43.28 4,781.27 4,698.38 678.99 1,168.60 5,959,794.51 601,005.37 3.51 871.60 3_MWD+IFR2+MS+Sag (3) 7,893.43 90.30 42.27 4,781.10 4,698.21 725.60 1,211.72 5,959,841.68 601,047.87 1.66 924.99 3_MWD+IFR2+MS+Sag (3) 7,956.80 90.68 43.75 4,780.56 4,697.67 771.93 1,254.94 5,959,888.59 601,090.47 2.41 978.12 3_MWD+IFR2+MS+Sag (3) 8,021.09 90.49 45.14 4,779.90 4,697.01 817.83 1,299.96 5,959,935.07 601,134.86 2.18 1,031.14 3_MWD+IFR2+MS+Sag (3) 8,084.45 88.57 45.46 4,780.42 4,697.53 862.39 1,344.99 5,959,980.22 601,179.30 3.07 1,082.84 3_MWD+IFR2+MS+Sag (3) 8,148.25 88.64 45.73 4,781.98 4,699.09 907.02 1,390.56 5,960,025.45 601,224.26 0.44 1,134.71 3_MWD+IFR2+MS+Sag (3) 8,211.98 90.06 45.17 4,782.70 4,699.81 951.72 1,435.97 5,960,070.75 601,269.07 2.40 1,186.62 3_MWD+IFR2+MS+Sag (3) 8,275.65 90.30 44.46 4,782.50 4,699.61 996.89 1,480.84 5,960,116.51 601,313.34 1.18 1,238.89 3_MWD+IFR2+MS+Sag (3) 8,339.43 90.06 42.75 4,782.30 4,699.41 1,043.07 1,524.83 5,960,163.26 601,356.70 2.71 1,292.01 3_MWD+IFR2+MS+Sag (3) 8,403.49 89.87 41.78 4,782.34 4,699.45 1,090.48 1,567.91 5,960,211.23 601,399.15 1.54 1,346.18 3_MWD+IFR2+MS+Sag (3) ZV2022 4:10:39PM Page 5 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB1 Survey Calculation Method: Minimum Curvature Design: �Z-220PB1 Database: NORTH US + CANADA Survey T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) V) V) (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 8,466.65 89.50 40.75 4,782.69 4,699.80 1,137.95 1,609.57 5,960,259.25 601,440.17 1.73 1,400.16 3_MWD+IFR2+MS+Sag (3) 8,529.63 89.13 40.27 4,783.44 4,700.55 1,185.83 1,650.48 5,960,307.67 601,480.43 0.96 1,454.42 3_MWD+IFR2+MS+Sag (3) 8,593.12 89.13 38.71 4,784.40 4,701.51 1,234.82 1,690.85 5,960,357.19 601,520.14 2.46 1,509.67 3_MWD+IFR2+MS+Sag (3) 8,656.89 88.45 36.86 4,785.75 4,702.86 1,285.21 1,729.91 5,960,408.08 601,558.53 3.09 1,566.08 3_MWD+IFR2+MS+Sag (3) 8,720.51 88.20 35.44 4,787.61 4,704.72 1,336.55 1,767.42 5,960,459.92 601,595.35 2.27 1,623.16 3_MWD+IFR2+MS+Sag (3) 8,784.29 88.27 34.92 4,789.57 4,706.68 1,388.66 1,804.15 5,960,512.50 601,631.38 0.82 1,680.85 3_MWD+IFR2+MS+Sag (3) 8,848.02 89.19 35.05 4,790.99 4,708.10 1,440.86 1,840.68 5,960,565.18 601,667.21 1.46 1,738.60 3_MWD+IFR2+MS+Sag (3) 8,911.78 89.38 32.90 4,791.78 4,708.89 1,493.73 1,876.31 5,960,618.51 601,702.13 3.38 1,796.85 3_MWD+IFR2+MS+Sag (3) 8,974.96 89.19 30.66 4,792.57 4,709.68 1,547.43 1,909.58 5,960,672.64 601,734.68 3.56 1,855.51 3_MWD+IFR2+MS+Sag (3) 9,038.60 89.07 29.13 4,793.54 4,710.65 1,602.59 1,941.29 5,960,728.22 601,765.66 2.41 1,915.35 3_MWD+IFR2+MS+Sag (3) 9,102.10 89.19 29.21 4,794.50 4,711.61 1,658.03 1,972.24 5,960,784.06 601,795.86 0.23 1,975.32 3_MWD+IFR2+MS+Sag (3) 9,165.74 89.38 27.79 4,795.30 4,712.41 1,713.95 2,002.60 5,960,840.38 601,825.48 2.25 2,035.66 3_MWD+IFR2+MS+Sag (3) 9,229.78 88.95 26.33 4,796.23 4,713.34 1,770.98 2,031.73 5,960,897.77 601,853.84 2.38 2,096.88 3_MWD+IFR2+MS+Sag (3) 9,293.75 89.01 24.42 4,797.37 4,714.48 1,828.76 2,059.14 5,960,955.91 601,880.48 2.99 2,158.55 3_MWD+IFR2+MS+Sag (3) 9,356.73 87.96 22.43 4,799.03 4,716.14 1,886.53 2,084.17 5,961,014.00 601,904.73 3.57 2,219.78 3_MWD+IFR2+MS+Sag (3) 9,420.70 88.02 20.05 4,801.28 4,718.39 1,946.11 2,107.32 5,961,073.88 601,927.10 3.72 2,282.48 3_MWD+IFR2+MS+Sag (3) 9,484.82 86.84 18.49 4,804.15 4,721.26 2,006.58 2,128.46 5,961,134.62 601,947.43 3.05 2,345.69 3_MWD+IFR2+MS+Sag (3) 9,548.73 84.18 15.34 4,809.16 4,726.27 2,067.52 2,147.00 5,961,195.80 601,965.15 6.44 2,408.93 3_MWD+IFR2+MS+Sag (3) 9,612.02 83.75 12.33 4,815.81 4,732.92 2,128.62 2,162.05 5,961,257.09 601,979.39 4.78 2,471.72 3_MWD+IFR2+MS+Sag (3) 9,675.26 83.93 10.68 4,822.60 4,739.71 2,190.23 2,174.59 5,961,318.86 601,991.11 2.61 2,534.57 3_MWD+IFR2+MS+Sag (3) 9,739.11 86.11 9.48 4,828.14 4,745.25 2,252.86 2,185.72 5,961,381.61 602,001.40 3.89 2,598.18 3_MWD+IFR2+MS+Sag (3) 9,802.82 88.40 7.07 4,831.19 4,748.30 2,315.82 2,194.88 5,961,444.69 602,009.72 5.21 2,661.78 3_MWD+IFR2+MS+Sag (3) 9,866.21 88.45 5.42 4,832.93 4,750.04 2,378.81 2,201.77 5,961,507.76 602,015.78 2.60 2,725.00 3_MWD+IFR2+MS+Sag (3) 9,928.54 88.02 4.21 4,834.85 4,751.96 2,440.89 2,207.00 5,961,569.90 602,020.18 2.06 2,787.05 3_MWD+IFR2+MS+Sag (3) 9,992.04 88.14 2.80 4,836.98 4,754.09 2,504.23 2,210.88 5,961,633.28 602,023.22 2.23 2,850.10 3_MWD+IFR2+MS+Sag (3) 10,057.22 88.14 0.48 4,839.10 4,756.21 2,569.35 2,212.74 5,961,698.41 602,024.22 3.56 2,914.55 3_MWD+IFR2+MS+Sag (3) 10,120.62 88.02 357.79 4,841.22 4,758.33 2,632.70 2,211.79 5,961,761.74 602,022.42 4.24 2,976.77 3_MWD+IFR2+MS+Sag (3) 10,183.86 88.45 357.25 4,843.17 4,760.28 2,695.85 2,209.05 5,961,824.84 602,018.85 1.09 3,038.49 3_MWD+IFR2+MS+Sag (3) 10,247.08 88.33 357.55 4,844.95 4,762.06 2,758.98 2,206.18 5,961,887.92 602,015.14 0.51 3,100.16 3_MWD+IFR2+MS+Sag (3) 10,311.11 87.96 357.65 4,847.02 4,764.13 2,822.92 2,203.50 5,961,951.81 602,011.61 0.60 3,162.67 3_MWD+IFR2+MS+Sag (3) 10,374.37 87.77 358.47 4,849.38 4,766.49 2,886.10 2,201.36 5,962,014.95 602,008.63 1.33 3,224.52 3_MWD+IFR2+MS+Sag (3) 10,438.09 86.54 358.28 4,852.54 4,769.65 2,949.71 2,199.56 5,962,078.53 602,005.98 1.95 3,286.85 3_MWD+IFR2+MS+Sag (3) 10,501.38 86.84 357.30 4,856.19 4,773.30 3,012.85 2,197.12 5,962,141.63 602,002.71 1.62 3,348.60 3_MWD+IFR2+MS+Sag (3) 10,564.64 88.39 356.72 4,858.83 4,775.94 3,075.97 2,193.83 5,962,204.69 601,998.57 2.62 3,410.19 3_MWD+IFR2+MS+Sag (3) 10,628.45 90.62 357.13 4,859.38 4,776.49 3,139.68 2,190.40 5,962,268.34 601,994.31 3.55 3,472.34 3_MWD+IFR2+MS+Sag (3) 10,692.53 92.84 357.23 4,857.44 4,774.55 3,203.65 2,187.25 5,962,332.26 601,990.31 3.47 3,534.79 3_MWD+IFR2+MS+Sag (3) 10,756.20 95.01 357.50 4,853.08 4,770.19 3,267.10 2,184.33 5,962,395.66 601,986.54 3.43 3,596.77 3_MWD+IFR2+MS+Sag (3) 10,819.59 95.87 358.40 4,847.07 4,764.18 3,330.16 2,182.07 5,962,458.68 601,983.45 1.96 3,658.48 3_MWD+IFR2+MS+Sag (3) 10,882.54 96.87 357.67 4,840.09 4,757.20 3,392.68 2,179.93 5,962,521.16 601,980.47 1.96 3,719.68 3_MWD+IFR2+MS+Sag (3) 10,946.40 97.05 357.55 4,832.35 4,749.46 3,456.02 2,177.29 5,962,584.45 601,976.99 0.34 3,781.59 3_MWD+IFR2+MS+Sag (3) ZV2022 4:10:39PM Page 6 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Project: Site: Well: Wellbore: Design: Hilcorp North Slope, LLC Prudhoe Bay Z Z-220 Z-220PB1 �Z-220PB1 Local Co-ordinate Reference: Well Z-220 TVD Reference: Z-220 Actual RKB @ 82.89usft MD Reference: Z-220 Actual RKB @ 82.89usft North Reference: True Survey Calculation Method: Minimum Curvature Database: NORTH US + CANADA Survey I Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100-) (ft) Survey Tool Name 11,010.25 96.93 356.95 4,824.58 4,741.69 3,519.32 2,174.25 5,962,647.70 601,973.11 0.95 3,843.41 3_MWD+IFR2+MS+Sag (3) 11,072.86 96.99 356.73 4,817.00 4,734.11 3,581.37 2,170.82 5,962,709.70 601,968.86 0.36 3,903.92 3_MWD+IFR2+MS+Sag (3) 11,134.34 95.68 355.67 4,810.21 4,727.32 3,642.34 2,166.77 5,962,770.60 601,964.00 2.73 3,963.26 3_MWD+IFR2+MS+Sag (3) 11,198.96 94.69 355.41 4,804.37 4,721.48 3,706.50 2,161.77 5,962,834.68 601,958.14 1.58 4,025.58 3_MWD+IFR2+MS+Sag (3) 11,264.57 92.71 354.69 4,800.14 4,717.25 3,771.73 2,156.12 5,962,899.82 601,951.63 3.21 4,088.83 3_MWD+IFR2+MS+Sag (3) 11,327.98 92.59 355.47 4,797.21 4,714.32 3,834.84 2,150.68 5,962,962.85 601,945.36 1.24 4,150.04 3_MWD+IFR2+MS+Sag (3) 11,392.31 92.59 355.46 4,794.30 4,711.41 3,898.90 2,145.60 5,963,026.83 601,939.43 0.02 4,212.25 3_MWD+IFR2+MS+Sag (3) 11,455.71 92.53 355.31 4,791.47 4,708.58 3,962.03 2,140.51 5,963,089.88 601,933.49 0.25 4,273.53 3_MWD+IFR2+MS+Sag (3) 11,519.08 92.28 356.30 4,788.81 4,705.92 4,025.17 2,135.87 5,963,152.96 601,928.02 1.61 4,334.91 3_MWD+IFR2+MS+Sag (3) 11,583.10 92.22 356.61 4,786.29 4,703.40 4,089.02 2,131.92 5,963,216.74 601,923.22 0.49 4,397.10 3_MWD+IFR2+MS+Sag (3) 11,646.77 91.91 358.18 4,784.00 4,701.11 4,152.58 2,129.03 5,963,280.25 601,919.48 2.51 4,459.20 3_MWD+IFR2+MS+Sag (3) 11,710.23 92.03 358.42 4,781.82 4,698.93 4,215.98 2,127.15 5,963,343.61 601,916.76 0.42 4,521.30 3_MWD+IFR2+MS+Sag (3) 11,774.08 93.83 359.24 4,778.55 4,695.66 4,279.73 2,125.84 5,963,407.33 601,914.61 3.10 4,583.86 3_MWD+IFR2+MS+Sag (3) 11,837.55 94.20 358.62 4,774.11 4,691.22 4,343.03 2,124.66 5,963,470.61 601,912.59 1.14 4,645.99 3_MWD+IFR2+MS+Sag (3) 11,899.98 93.95 357.77 4,769.67 4,686.78 4,405.27 2,122.70 5,963,532.81 601,909.80 1.42 4,706.95 3_MWD+IFR2+MS+Sag (3) 11,965.07 94.14 357.04 4,765.08 4,682.19 4,470.13 2,119.76 5,963,597.62 601,906.00 1.16 4,770.31 3_MWD+IFR2+MS+Sag (3) 12,027.83 95.00 357.69 4,760.08 4,677.19 4,532.62 2,116.88 5,963,660.07 601,902.29 1.72 4,831.36 3_MWD+IFR2+MS+Sag (3) 12,091.47 95.31 358.26 4,754.36 4,671.47 4,595.97 2,114.64 5,963,723.37 601,899.21 1.02 4,893.35 3_MWD+IFR2+MS+Sag (3) 12,155.42 95.32 358.33 4,748.44 4,665.55 4,659.61 2,112.75 5,963,786.98 601,896.47 0.11 4,955.70 3_MWD+IFR2+MS+Sag (3) 12,219.02 94.63 359.39 4,742.92 4,660.03 4,722.96 2,111.49 5,963,850.30 601,894.37 1.98 5,017.86 3_MWD+IFR2+MS+Sag (3) 12,282.91 92.96 0.61 4,738.70 4,655.81 4,786.71 2,111.49 5,963,914.03 601,893.53 3.23 5,080.64 3_MWD+IFR2+MS+Sag (3) 12,346.77 92.65 0.88 4,735.57 4,652.68 4,850.49 2,112.32 5,963,977.81 601,893.51 0.64 5,143.60 3_MWD+IFR2+MS+Sag (3) 12,409.06 92.96 2.56 4,732.52 4,649.63 4,912.67 2,114.19 5,964,040.01 601,894.55 2.74 5,205.16 3_MWD+IFR2+MS+Sag (3) 12,473.44 93.02 3.03 4,729.16 4,646.27 4,976.89 2,117.32 5,964,104.25 601,896.83 0.73 5,268.94 3_MWD+IFR2+MS+Sag (3) 12,536.70 94.51 2.52 4,725.01 4,642.12 5,039.93 2,120.38 5,964,167.33 601,899.05 2.49 5,331.57 3_MWD+IFR2+MS+Sag (3) 12,600.62 95.07 3.48 4,719.67 4,636.78 5,103.54 2,123.71 5,964,230.97 601,901.54 1.73 5,394.79 3_MWD+IFR2+MS+Sag (3) 12,664.21 95.19 4.57 4,713.99 4,631.10 5,166.72 2,128.16 5,964,294.20 601,905.14 1.72 5,457.78 3_MWD+IFR2+MS+Sag (3) 12,728.04 95.13 3.51 4,708.25 4,625.36 5,230.13 2,132.64 5,964,357.66 601,908.78 1.66 5,521.00 3_MWD+IFR2+MS+Sag (3) 12,791.81 96.18 3.15 4,701.96 4,619.07 5,293.48 2,136.32 5,964,421.05 601,911.62 1.74 5,584.03 3_MWD+IFR2+MS+Sag (3) 12,837.96 97.24 3.52 4,696.57 4,613.68 5,339.24 2,138.99 5,964,466.83 601,913.68 2.43 5,629.56 3_MWD+IFR2+MS+Sag (3) 12,907.00 97.24 3.52 4,687.87 4,604.98 5,407.60 2,143.19 5,964,535.23 601,916.97 0.00 5,697.61 PROJECTED to TD Digitally signed by Chelsea Checked By: Chelsea Wright Wright Digitally signed by Benjamin Han 02-07-2022 : Benjamin Hand Date: 2022.02.03 09:51:15-09'00' ate: By. 000Approved 21212022 4:10:39PM Page 7 COMPASS 5000.15 Build 91E Hilcorp North Prudhoe Bay Z Z-220PB2 500292370571 Slope, LLC Sperry Drilling Definitive Survey Report 02 February, 2022 HALLIBURTON Sperry Drilling Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220PB2 Design: Z-220PB2 Local Co-ordinate Reference: Well Z-220 TVD Reference: Z-220 Actual RKB @ 82.89usft MD Reference: Z-220 Actual RKB @ 82.89usft North Reference: True Survey Calculation Method: Minimum Curvature Database: NORTH US + CANADA )roject Prudhoe Bay, North Slope, UNITED STATES flap System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level 3eo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point flap Zone: Alaska Zone 04 Using geodetic scale factor Well Z-220, Slot SB Well Position +N/-S 0.00 usft Northing: 5,959,100.12 usft Latitude: 70° 17' 51.634 N +E/-W 0.00 usft Easting: 599,846.00 usft Longitude: 149° 11' 29.155 W Position Uncertainty 0.50 usft Wellhead Elevation: usft Ground Level: 56.10usft Wellbore Z-220PB2 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (nT) IFR 1/20/2022 15.44 80.73 57,248.30000000 Design Z-220PB2 Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 9,675.26 Vertical Section: Depth From (TVD) +N/-S +E/-W Direction (usft) (usft) (usft) (°) 26.79 0.00 0.00 10.00 Survey Program Date 1/31/2022 From To (usft) (usft) Survey (Wellbore) Tool Name Description Survey Date 179.37 866.30 Z-220PB1 GWD Gyro (Z-220PB1) GYD_Quest GWD Gyrodata Stationary SPEAR GWD tool in open 12/30/2021 917.65 5,876.96 Z-220PB1 MWD+IFR2+MS+Sag (1) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/11/2022 5,893.80 9,675.26 Z-220PB1 MWD+IFR2+MS+Sag (2) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/20/2022 9,681.00 15,145.01 Z-220PB2 MWD+IFR2+MS+Sag (3) (Z-2 3_MWD+IFR2+MS+Sag A013Mb: IIFR dec & multi -station analysis + se 01/24/2022 Survey Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (I (I (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 26.79 0.00 0.00 26.79 -56.10 0.00 0.00 5,959,100.12 599,846.00 0.00 0.00 UNDEFINED 179.37 0.09 339.14 179.37 96.48 0.11 -0.04 5,959,100.23 599,845.96 0.06 0.10 GYD_QuestGWD (1) 240.10 0.09 125.40 240.10 157.21 0.13 -0.02 5,959,100.25 599,845.98 0.28 0.12 GYD_Quest GWD (1) 303.10 1.32 217.91 303.09 220.20 -0.47 -0.43 5,959,099.64 599,845.58 2.11 -0.54 GYD_Quest GWD (1) 364.17 3.66 216.85 364.10 281.21 -2.59 -2.03 5,959,097.51 599,844.01 3.83 -2.90 GYD_Quest GWD (1) 426.92 5.05 222.84 426.67 343.78 -6.22 -5.11 5,959,093.84 599,840.98 2.33 -7.01 GYD_Quest GWD (1) 489.01 6.28 218.97 488.46 405.57 -10.86 -9.10 5,959,089.14 599,837.04 2.07 -12.27 GYD_Quest GWD (1) 550.96 8.03 224.96 549.92 467.03 -16.56 -14.29 5,959,083.38 599,831.93 3.07 -18.79 GYD_Quest GWD (1) 612.20 10.38 222.31 610.37 527.48 -23.66 -21.03 5,959,076.18 599,825.29 3.90 -26.96 GYD_Quest GWD (1) 674.16 13.35 213.50 671.00 588.11 -33.76 -28.73 5,959,065.98 599,817.72 5.60 -38.24 GYD_Quest GWD (1) 739.08 15.98 218.61 733.81 650.92 -47.00 -38.45 5,959,052.62 599,808.18 4.51 -52.96 GYD_Quest GWD (1) 21212022 4:12:05PM Page 2 COMPASS 5000.15 Build 91 E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB2 Survey Calculation Method: Minimum Curvature Design: �Z-220PB2 Database: NORTH US + CANADA Survey ow T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100,) (ft) Survey Tool Name 802.24 18.19 217.38 794.18 711.29 -61.62 -49.86 5,959,037.84 599,796.97 3.55 -69.35 GYD_Quest GWD (1) 866.30 20.05 218.44 854.70 771.81 -78.17 -62.76 5,959,021.13 599,784.29 2.95 -87.88 GYD_Quest GWD (1) 917.65 21.64 217.84 902.69 819.80 -92.55 -74.04 5,959,006.61 599,773.20 3.12 -104.00 3_MWD+IFR2+MS+Sag (2) 981.32 22.97 218.45 961.59 878.70 -111.55 -88.97 5,958,987.41 599,758.53 2.12 -125.30 3_MWD+IFR2+MS+Sag (2) 1,045.46 26.04 219.84 1,019.95 937.06 -132.16 -105.78 5,958,966.57 599,742.00 4.87 -148.52 3_MWD+IFR2+MS+Sag (2) 1,109.03 28.40 221.95 1,076.47 993.58 -154.12 -124.82 5,958,944.36 599,723.25 4.01 -173.46 3_MWD+IFR2+MS+Sag (2) 1,172.58 30.13 220.54 1,131.91 1,049.02 -177.49 -145.30 5,958,920.73 599,703.09 2.93 -200.02 3_MWD+IFR2+MS+Sag (2) 1,236.23 34.37 219.74 1,185.73 1,102.84 -203.46 -167.18 5,958,894.48 599,681.56 6.69 -229.39 3_MWD+IFR2+MS+Sag (2) 1,299.65 37.53 220.90 1,237.06 1,154.17 -231.83 -191.27 5,958,865.79 599,657.84 5.10 -261.52 3_MWD+IFR2+MS+Sag (2) 1,362.34 39.56 220.86 1,286.09 1,203.20 -261.36 -216.84 5,958,835.92 599,632.67 3.24 -295.05 3_MWD+IFR2+MS+Sag (2) 1,427.26 41.68 221.22 1,335.37 1,252.48 -293.24 -244.59 5,958,803.68 599,605.35 3.29 -331.26 3_MWD+IFR2+MS+Sag (2) 1,491.05 42.06 221.55 1,382.87 1,299.98 -325.18 -272.74 5,958,771.37 599,577.63 0.69 -367.60 3_MWD+IFR2+MS+Sag (2) 1,554.50 40.63 220.35 1,430.50 1,347.61 -356.83 -300.21 5,958,739.36 599,550.58 2.58 -403.54 3_MWD+IFR2+MS+Sag (2) 1,618.32 39.59 220.25 1,479.31 1,396.42 -388.19 -326.81 5,958,707.66 599,524.41 1.63 -439.04 3_MWD+IFR2+MS+Sag (2) 1,681.65 39.77 220.85 1,528.05 1,445.16 -418.92 -353.09 5,958,676.59 599,498.53 0.67 -473.86 3_MWD+IFR2+MS+Sag (2) 1,742.96 39.43 220.82 1,575.29 1,492.40 -448.48 -378.65 5,958,646.69 599,473.38 0.56 -507.42 3_MWD+IFR2+MS+Sag (2) 1,808.19 40.11 220.48 1,625.43 1,542.54 -480.14 -405.83 5,958,614.67 599,446.62 1.09 -543.32 3_MWD+IFR2+MS+Sag (2) 1,871.74 40.91 220.65 1,673.75 1,590.86 -511.50 -432.68 5,958,582.96 599,420.20 1.27 -578.86 3_MWD+IFR2+MS+Sag (2) 1,935.08 41.95 220.21 1,721.24 1,638.35 -543.41 -459.85 5,958,550.70 599,393.45 1.71 -615.00 3_MWD+IFR2+MS+Sag (2) 1,998.39 40.64 220.64 1,768.80 1,685.91 -575.21 -486.94 5,958,518.54 599,366.78 2.12 -651.03 3_MWD+IFR2+MS+Sag (2) 2,062.85 42.33 220.06 1,817.09 1,734.20 -607.75 -514.59 5,958,485.64 599,339.58 2.69 -687.88 3_MWD+IFR2+MS+Sag (2) 2,125.24 42.65 220.20 1,863.10 1,780.21 -639.98 -541.75 5,958,453.06 599,312.85 0.53 -724.33 3_MWD+IFR2+MS+Sag (2) 2,188.42 41.49 220.36 1,909.99 1,827.10 -672.27 -569.12 5,958,420.41 599,285.91 1.84 -760.88 3_MWD+IFR2+MS+Sag (2) 2,252.12 42.50 220.72 1,957.34 1,874.45 -704.66 -596.82 5,958,387.66 599,258.65 1.63 -797.59 3_MWD+IFR2+MS+Sag (2) 2,315.18 42.50 220.50 2,003.83 1,920.94 -737.00 -624.55 5,958,354.95 599,231.35 0.24 -834.26 3_MWD+IFR2+MS+Sag (2) 2,379.04 42.76 221.46 2,050.81 1,967.92 -769.65 -652.91 5,958,321.93 599,203.43 1.10 -871.33 3_MWD+IFR2+MS+Sag (2) 2,442.90 42.60 221.98 2,097.76 2,014.87 -801.96 -681.72 5,958,289.24 599,175.05 0.61 -908.16 3_MWD+IFR2+MS+Sag (2) 2,506.46 42.32 220.80 2,144.65 2,061.76 -834.15 -710.09 5,958,256.68 599,147.12 1.33 -944.78 3_MWD+IFR2+MS+Sag (2) 2,569.84 42.51 220.28 2,191.44 2,108.55 -866.64 -737.88 5,958,223.83 599,119.77 0.63 -981.60 3_MWD+IFR2+MS+Sag (2) 2,633.68 41.67 220.64 2,238.82 2,155.93 -899.20 -765.64 5,958,190.91 599,092.44 1.37 -1,018.49 3_MWD+IFR2+MS+Sag (2) 2,697.66 41.29 220.87 2,286.75 2,203.86 -931.30 -793.31 5,958,158.45 599,065.20 0.64 -1,054.91 3_MWD+IFR2+MS+Sag (2) 2,761.49 39.40 220.07 2,335.40 2,252.51 -962.73 -820.13 5,958,126.67 599,038.80 3.07 -1,090.52 3_MWD+IFR2+MS+Sag (2) 2,824.91 39.74 219.51 2,384.29 2,301.40 -993.77 -845.99 5,958,095.28 599,013.37 0.78 -1,125.58 3_MWD+IFR2+MS+Sag (2) 2,889.05 39.94 220.58 2,433.54 2,350.65 -1,025.23 -872.42 5,958,063.48 598,987.35 1.11 -1,161.15 3_MWD+IFR2+MS+Sag (2) 2,952.13 39.88 221.70 2,481.92 2,399.03 -1,055.71 -899.05 5,958,032.66 598,961.14 1.14 -1,195.79 3_MWD+IFR2+MS+Sag (2) 3,015.70 40.17 222.60 2,530.60 2,447.71 -1,086.02 -926.48 5,958,001.99 598,934.11 1.02 -1,230.40 3_MWD+IFR2+MS+Sag (2) 3,079.87 39.21 221.65 2,579.98 2,497.09 -1,116.41 -953.97 5,957,971.24 598,907.03 1.77 -1,265.10 3_MWD+IFR2+MS+Sag (2) 3,143.19 37.72 221.09 2,629.56 2,546.67 -1,145.96 -980.01 5,957,941.34 598,881.39 2.42 -1,298.73 3_MWD+IFR2+MS+Sag (2) 3,206.80 35.84 219.62 2,680.51 2,597.62 -1,174.98 -1,004.67 5,957,912.01 598,857.11 3.26 -1,331.59 3_MWD+IFR2+MS+Sag (2) 3,270.80 32.76 217.95 2,733.37 2,650.48 -1,203.07 -1,027.28 5,957,883.62 598,834.89 5.03 -1,363.18 3_MWD+IFR2+MS+Sag (2) ZW2022 4:12:05PM Page 3 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Z-220 Wellbore: Z-220PB2 Design: �Z-220PB2 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Database: Well Z-220 Z-220 Actual RKB @ 82.89usft Z-220 Actual RKB @ 82.89usft True Minimum Curvature NORTH US + CANADA Survey RW7 -1 Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/1001) (ft) Survey Tool Name 3,334.30 30.08 216.57 2,787.56 2,704.67 -1,229.40 -1,047.33 5,957,857.02 598,815.19 4.37 -1,392.59 3_MWD+IFR2+MS+Sag (2) 3,398.21 28.22 214.24 2,843.37 2,760.48 -1,254.76 -1,065.37 5,957,831.43 598,797.48 3.41 -1,420.70 3_MWD+IFR2+MS+Sag (2) 3,461.96 25.81 212.95 2,900.16 2,817.27 -1,278.87 -1,081.41 5,957,807.11 598,781.77 3.89 -1,447.23 3_MWD+IFR2+MS+Sag (2) 3,525.50 22.79 211.56 2,958.07 2,875.18 -1,300.97 -1,095.37 5,957,784.83 598,768.10 4.84 -1,471.41 3_MWD+IFR2+MS+Sag (2) 3,589.22 19.71 210.22 3,017.45 2,934.56 -1,320.77 -1,107.24 5,957,764.87 598,756.50 4.89 -1,492.98 3_MWD+IFR2+MS+Sag (2) 3,652.87 17.23 207.64 3,077.81 2,994.92 -1,338.40 -1,117.02 5,957,747.11 598,746.96 4.10 -1,512.04 3_MWD+IFR2+MS+Sag (2) 3,715.21 14.18 206.09 3,137.82 3,054.93 -1,353.44 -1,124.66 5,957,731.97 598,739.51 4.94 -1,528.18 3_MWD+IFR2+MS+Sag (2) 3,777.80 11.49 200.77 3,198.84 3,115.95 -1,366.16 -1,130.25 5,957,719.19 598,734.10 4.69 -1,541.67 3_MWD+IFR2+MS+Sag (2) 3,842.50 8.85 194.83 3,262.52 3,179.63 -1,377.00 -1,133.81 5,957,708.30 598,730.69 4.39 -1,552.96 3_MWD+IFR2+MS+Sag (2) 3,906.45 6.66 180.00 3,325.89 3,243.00 -1,385.47 -1,135.07 5,957,699.82 598,729.54 4.61 -1,561.52 3_MWD+IFR2+MS+Sag (2) 3,970.45 6.11 153.13 3,389.51 3,306.62 -1,392.22 -1,133.53 5,957,693.09 598,731.17 4.70 -1,567.90 3_MWD+IFR2+MS+Sag (2) 4,033.41 7.16 123.62 3,452.06 3,369.17 -1,397.38 -1,128.74 5,957,687.99 598,736.02 5.59 -1,572.15 3_MWD+IFR2+MS+Sag (2) 4,096.72 8.71 97.18 3,514.78 3,431.89 -1,400.16 -1,120.70 5,957,685.32 598,744.10 6.19 -1,573.50 3_MWD+IFR2+MS+Sag (2) 4,160.70 11.04 79.50 3,577.83 3,494.94 -1,399.65 -1,109.87 5,957,685.97 598,754.92 5.94 -1,571.12 3_MWD+IFR2+MS+Sag (2) 4,223.73 13.76 74.73 3,639.38 3,556.49 -1,396.58 -1,096.70 5,957,689.22 598,768.05 4.61 -1,565.80 3_MWD+IFR2+MS+Sag (2) 4,287.58 16.23 69.87 3,701.06 3,618.17 -1,391.51 -1,080.99 5,957,694.50 598,783.69 4.34 -1,558.08 3_MWD+IFR2+MS+Sag (2) 4,351.23 18.03 65.23 3,761.88 3,678.99 -1,384.32 -1,063.69 5,957,701.92 598,800.88 3.55 -1,547.99 3_MWD+IFR2+MS+Sag (2) 4,414.64 20.11 61.25 3,821.81 3,738.92 -1,374.96 -1,045.22 5,957,711.52 598,819.23 3.87 -1,535.57 3_MWD+IFR2+MS+Sag (2) 4,478.13 22.09 59.33 3,881.04 3,798.15 -1,363.62 -1,025.38 5,957,723.12 598,838.91 3.30 -1,520.96 3_MWD+IFR2+MS+Sag (2) 4,542.00 24.37 57.22 3,939.73 3,856.84 -1,350.36 -1,003.97 5,957,736.66 598,860.14 3.80 -1,504.18 3_MWD+IFR2+MS+Sag (2) 4,605.09 26.64 54.13 3,996.67 3,913.78 -1,335.02 -981.56 5,957,752.30 598,882.35 4.17 -1,485.19 3_MWD+IFR2+MS+Sag (2) 4,668.85 29.98 52.44 4,052.80 3,969.91 -1,316.93 -957.34 5,957,770.71 598,906.32 5.39 -1,463.16 3_MWD+IFR2+MS+Sag (2) 4,732.50 32.73 52.49 4,107.15 4,024.26 -1,296.75 -931.08 5,957,791.23 598,932.31 4.32 -1,438.73 3_MWD+IFR2+MS+Sag (2) 4,796.11 35.44 52.23 4,159.83 4,076.94 -1,274.98 -902.86 5,957,813.37 598,960.24 4.27 -1,412.39 3_MWD+IFR2+MS+Sag (2) 4,860.22 37.64 52.77 4,211.33 4,128.44 -1,251.75 -872.58 5,957,837.00 598,990.21 3.47 -1,384.25 3_MWD+IFR2+MS+Sag (2) 4,924.05 40.06 52.73 4,261.04 4,178.15 -1,227.51 -840.71 5,957,861.66 599,021.75 3.78 -1,354.85 3_MWD+IFR2+MS+Sag (2) 4,987.52 42.61 51.76 4,308.69 4,225.80 -1,201.84 -807.57 5,957,887.76 599,054.54 4.15 -1,323.81 3_MWD+IFR2+MS+Sag (2) 5,050.94 45.63 50.92 4,354.22 4,271.33 -1,174.25 -773.11 5,957,915.80 599,088.63 4.84 -1,290.66 3_MWD+IFR2+MS+Sag (2) 5,115.10 49.70 49.84 4,397.42 4,314.53 -1,144.01 -736.60 5,957,946.53 599,124.73 6.47 -1,254.54 3_MWD+IFR2+MS+Sag (2) 5,178.29 51.34 49.64 4,437.60 4,354.71 -1,112.49 -699.38 5,957,978.54 599,161.52 2.61 -1,217.03 3_MWD+IFR2+MS+Sag (2) 5,242.40 53.96 48.69 4,476.48 4,393.59 -1,079.16 -660.83 5,958,012.37 599,199.62 4.26 -1,177.52 3_MWD+IFR2+MS+Sag (2) 5,305.75 58.41 47.99 4,511.73 4,428.84 -1,044.18 -621.53 5,958,047.87 599,238.46 7.08 -1,136.24 3_MWD+IFR2+MS+Sag (2) 5,369.06 60.92 47.97 4,543.71 4,460.82 -1,007.60 -580.93 5,958,084.98 599,278.55 3.96 -1,093.17 3_MWD+IFR2+MS+Sag (2) 5,432.28 63.66 47.37 4,573.11 4,490.22 -969.91 -539.57 5,958,123.21 599,319.41 4.41 -1,048.87 3_MWD+IFR2+MS+Sag (2) 5,496.51 66.30 47.20 4,600.27 4,517.38 -930.43 -496.81 5,958,163.25 599,361.64 4.13 -1,002.57 3_MWD+IFR2+MS+Sag (2) 5,559.94 69.89 47.31 4,623.92 4,541.03 -890.50 -453.60 5,958,203.75 599,404.31 5.66 -955.74 3_MWD+IFR2+MS+Sag (2) 5,623.77 72.55 47.76 4,644.47 4,561.58 -849.70 -409.02 5,958,245.13 599,448.34 4.22 -907.82 3_MWD+IFR2+MS+Sag (2) 5,686.75 75.00 48.38 4,662.07 4,579.18 -809.30 -364.03 5,958,286.13 599,492.79 4.00 -860.22 3_MWD+IFR2+MS+Sag (2) 5,750.29 78.80 48.28 4,676.47 4,593.58 -768.17 -317.81 5,958,327.87 599,538.45 5.98 -811.68 3_MWD+IFR2+MS+Sag (2) 5,813.72 83.36 48.26 4,686.30 4,603.41 -726.47 -271.05 5,958,370.18 599,584.65 7.19 -762.50 3_MWD+IFR2+MS+Sag (2) ZW2022 4:12:05PM Page 4 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB2 Survey Calculation Method: Minimum Curvature Design: �Z-220PB2 Database: NORTH US + CANADA Survey IF Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/1001) (ft) Survey Tool Name 5,876.96 84.73 47.74 4,692.87 4,609.98 -684.38 -224.31 5,958,412.88 599,630.82 2.31 -712.94 3_MWD+IFR2+MS+Sag (2) 5,893.80 84.85 47.73 4,694.40 4,611.51 -673.10 -211.90 5,958,424.32 599,643.08 0.73 -699.67 3_MWD+IFR2+MS+Sag (3) 5,986.09 85.12 48.24 4,702.46 4,619.57 -611.57 -143.60 5,958,486.75 599,710.55 0.62 -627.21 3_MWD+IFR2+MS+Sag (3) 6,050.40 85.36 48.04 4,707.80 4,624.91 -568.80 -95.87 5,958,530.14 599,757.71 0.49 -576.81 3_MWD+IFR2+MS+Sag (3) 6,114.10 85.11 47.40 4,713.09 4,630.20 -526.10 -48.90 5,958,573.47 599,804.10 1.08 -526.59 3_MWD+IFR2+MS+Sag (3) 6,177.64 86.35 46.48 4,717.82 4,634.93 -482.83 -2.60 5,958,617.34 599,849.81 2.43 -475.95 3_MWD+IFR2+MS+Sag (3) 6,241.21 86.72 44.94 4,721.66 4,638.77 -438.53 42.81 5,958,662.24 599,894.63 2.49 -424.43 3_MWD+IFR2+MS+Sag (3) 6,305.02 88.64 42.79 4,724.25 4,641.36 -392.56 86.99 5,958,708.78 599,938.19 4.52 -371.49 3_MWD+IFR2+MS+Sag (3) 6,368.73 88.70 42.52 4,725.73 4,642.84 -345.72 130.15 5,958,756.19 599,980.72 0.43 -317.87 3_MWD+IFR2+MS+Sag (3) 6,432.31 87.59 41.27 4,727.79 4,644.90 -298.42 172.58 5,958,804.05 600,022.52 2.63 -263.92 3_MWD+IFR2+MS+Sag (3) 6,495.61 85.05 41.83 4,731.85 4,648.96 -251.15 214.48 5,958,851.86 600,063.77 4.11 -210.09 3_MWD+IFR2+MS+Sag (3) 6,559.61 84.43 44.09 4,737.72 4,654.83 -204.51 257.90 5,958,899.07 600,106.58 3.65 -156.62 3_MWD+IFR2+MS+Sag (3) 6,622.36 84.31 46.12 4,743.87 4,660.98 -160.44 302.14 5,958,943.72 600,150.22 3.23 -105.54 3_MWD+IFR2+MS+Sag (3) 6,686.56 85.05 46.08 4,749.82 4,666.93 -116.11 348.20 5,958,988.65 600,195.68 1.15 -53.89 3_MWD+IFR2+MS+Sag (3) 6,749.70 86.17 46.52 4,754.66 4,671.77 -72.62 393.71 5,959,032.74 600,240.61 1.91 -3.15 3_MWD+IFR2+MS+Sag (3) 6,813.59 87.09 45.87 4,758.41 4,675.52 -28.47 439.74 5,959,077.49 600,286.04 1.76 48.32 3_MWD+IFR2+MS+Sag (3) 6,876.70 87.34 46.17 4,761.48 4,678.59 15.30 485.10 5,959,121.86 600,330.81 0.62 99.30 3_MWD+IFR2+MS+Sag (3) 6,939.91 87.34 46.24 4,764.41 4,681.52 59.00 530.68 5,959,166.16 600,375.80 0.11 150.25 3_MWD+IFR2+MS+Sag (3) 7,003.56 87.53 45.96 4,767.26 4,684.37 103.09 576.49 5,959,210.85 600,421.02 0.53 201.63 3_MWD+IFR2+MS+Sag (3) 7,067.16 88.52 46.76 4,769.45 4,686.56 146.95 622.49 5,959,255.32 600,466.43 2.00 252.82 3_MWD+IFR2+MS+Sag (3) 7,130.62 90.18 47.56 4,770.17 4,687.28 190.10 669.02 5,959,299.07 600,512.38 2.90 303.39 3_MWD+IFR2+MS+Sag (3) 7,193.83 90.00 48.05 4,770.07 4,687.18 232.55 715.85 5,959,342.14 600,558.63 0.83 353.33 3_MWD+IFR2+MS+Sag (3) 7,257.42 88.39 46.59 4,770.97 4,688.08 275.66 762.59 5,959,385.86 600,604.79 3.42 403.89 3_MWD+IFR2+MS+Sag (3) 7,320.97 88.08 45.41 4,772.93 4,690.04 319.78 808.28 5,959,430.58 600,649.89 1.92 455.28 3_MWD+IFR2+MS+Sag (3) 7,384.03 87.65 44.28 4,775.27 4,692.38 364.46 852.72 5,959,475.84 600,693.73 1.92 506.99 3_MWD+IFR2+MS+Sag (3) 7,447.91 87.22 44.17 4,778.13 4,695.24 410.19 897.23 5,959,522.16 600,737.62 0.69 559.76 3_MWD+IFR2+MS+Sag (3) 7,511.36 89.26 45.30 4,780.08 4,697.19 455.24 941.86 5,959,567.79 600,781.65 3.67 611.87 3_MWD+IFR2+MS+Sag (3) 7,574.86 89.32 45.92 4,780.87 4,697.98 499.65 987.24 5,959,612.80 600,826.43 0.98 663.49 3_MWD+IFR2+MS+Sag (3) 7,638.40 89.81 45.84 4,781.35 4,698.46 543.89 1,032.85 5,959,657.63 600,871.44 0.78 714.98 3_MWD+IFR2+MS+Sag (3) 7,702.68 89.93 45.34 4,781.50 4,698.61 588.87 1,078.77 5,959,703.22 600,916.76 0.80 767.25 3_MWD+IFR2+MS+Sag (3) 7,766.02 90.24 45.51 4,781.40 4,698.51 633.32 1,123.89 5,959,748.26 600,961.28 0.56 818.86 3_MWD+IFR2+MS+Sag (3) 7,829.93 90.00 43.28 4,781.27 4,698.38 678.99 1,168.60 5,959,794.51 601,005.37 3.51 871.60 3_MWD+IFR2+MS+Sag (3) 7,893.43 90.30 42.27 4,781.10 4,698.21 725.60 1,211.72 5,959,841.68 601,047.87 1.66 924.99 3_MWD+IFR2+MS+Sag (3) 7,956.80 90.68 43.75 4,780.56 4,697.67 771.93 1,254.94 5,959,888.59 601,090.47 2.41 978.12 3_MWD+IFR2+MS+Sag (3) 8,021.09 90.49 45.14 4,779.90 4,697.01 817.83 1,299.96 5,959,935.07 601,134.86 2.18 1,031.14 3_MWD+IFR2+MS+Sag (3) 8,084.45 88.57 45.46 4,780.42 4,697.53 862.39 1,344.99 5,959,980.22 601,179.30 3.07 1,082.84 3_MWD+IFR2+MS+Sag (3) 8,148.25 88.64 45.73 4,781.98 4,699.09 907.02 1,390.56 5,960,025.45 601,224.26 0.44 1,134.71 3_MWD+IFR2+MS+Sag (3) 8,211.98 90.06 45.17 4,782.70 4,699.81 951.72 1,435.97 5,960,070.75 601,269.07 2.40 1,186.62 3_MWD+IFR2+MS+Sag (3) 8,275.65 90.30 44.46 4,782.50 4,699.61 996.89 1,480.84 5,960,116.51 601,313.34 1.18 1,238.89 3_MWD+IFR2+MS+Sag (3) 8,339.43 90.06 42.75 4,782.30 4,699.41 1,043.07 1,524.83 5,960,163.26 601,356.70 2.71 1,292.01 3_MWD+IFR2+MS+Sag (3) ZW2022 4:12:05PM Page 5 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB2 Survey Calculation Method: Minimum Curvature Design: �Z-220PB2 Database: NORTH US + CANADA Survey M T Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) V) (usft) (usft) (usft) (usft) (ft) (ft) (°/100') (ft) Survey Tool Name 8,403.49 89.87 41.78 4,782.34 4,699.45 1,090.48 1,567.91 5,960,211.23 601,399.15 1.54 1,346.18 3_MWD+IFR2+MS+Sag (3) 8,466.65 89.50 40.75 4,782.69 4,699.80 1,137.95 1,609.57 5,960,259.25 601,440.17 1.73 1,400.16 3_MWD+IFR2+MS+Sag (3) 8,529.63 89.13 40.27 4,783.44 4,700.55 1,185.83 1,650.48 5,960,307.67 601,480.43 0.96 1,454.42 3_MWD+IFR2+MS+Sag (3) 8,593.12 89.13 38.71 4,784.40 4,701.51 1,234.82 1,690.85 5,960,357.19 601,520.14 2.46 1,509.67 3_MWD+IFR2+MS+Sag (3) 8,656.89 88.45 36.86 4,785.75 4,702.86 1,285.21 1,729.91 5,960,408.08 601,558.53 3.09 1,566.08 3_MWD+IFR2+MS+Sag (3) 8,720.51 88.20 35.44 4,787.61 4,704.72 1,336.55 1,767.42 5,960,459.92 601,595.35 2.27 1,623.16 3_MWD+IFR2+MS+Sag (3) 8,784.29 88.27 34.92 4,789.57 4,706.68 1,388.66 1,804.15 5,960,512.50 601,631.38 0.82 1,680.85 3_MWD+IFR2+MS+Sag (3) 8,848.02 89.19 35.05 4,790.99 4,708.10 1,440.86 1,840.68 5,960,565.18 601,667.21 1.46 1,738.60 3_MWD+IFR2+MS+Sag (3) 8,911.78 89.38 32.90 4,791.78 4,708.89 1,493.73 1,876.31 5,960,618.51 601,702.13 3.38 1,796.85 3_MWD+IFR2+MS+Sag (3) 8,974.96 89.19 30.66 4,792.57 4,709.68 1,547.43 1,909.58 5,960,672.64 601,734.68 3.56 1,855.51 3_MWD+IFR2+MS+Sag (3) 9,038.60 89.07 29.13 4,793.54 4,710.65 1,602.59 1,941.29 5,960,728.22 601,765.66 2.41 1,915.35 3_MWD+IFR2+MS+Sag (3) 9,102.10 89.19 29.21 4,794.50 4,711.61 1,658.03 1,972.24 5,960,784.06 601,795.86 0.23 1,975.32 3_MWD+IFR2+MS+Sag (3) 9,165.74 89.38 27.79 4,795.30 4,712.41 1,713.95 2,002.60 5,960,840.38 601,825.48 2.25 2,035.66 3_MWD+IFR2+MS+Sag (3) 9,229.78 88.95 26.33 4,796.23 4,713.34 1,770.98 2,031.73 5,960,897.77 601,853.84 2.38 2,096.88 3_MWD+IFR2+MS+Sag (3) 9,293.75 89.01 24.42 4,797.37 4,714.48 1,828.76 2,059.14 5,960,955.91 601,880.48 2.99 2,158.55 3_MWD+IFR2+MS+Sag (3) 9,356.73 87.96 22.43 4,799.03 4,716.14 1,886.53 2,084.17 5,961,014.00 601,904.73 3.57 2,219.78 3_MWD+IFR2+MS+Sag (3) 9,420.70 88.02 20.05 4,801.28 4,718.39 1,946.11 2,107.32 5,961,073.88 601,927.10 3.72 2,282.48 3_MWD+IFR2+MS+Sag (3) 9,484.82 86.84 18.49 4,804.15 4,721.26 2,006.58 2,128.46 5,961,134.62 601,947.43 3.05 2,345.69 3_MWD+IFR2+MS+Sag (3) 9,548.73 84.18 15.34 4,809.16 4,726.27 2,067.52 2,147.00 5,961,195.80 601,965.15 6.44 2,408.93 3_MWD+IFR2+MS+Sag (3) 9,612.02 83.75 12.33 4,815.81 4,732.92 2,128.62 2,162.05 5,961,257.09 601,979.39 4.78 2,471.72 3_MWD+IFR2+MS+Sag (3) 9,675.26 83.93 10.68 4,822.60 4,739.71 2,190.23 2,174.59 5,961,318.86 601,991.11 2.61 2,534.57 3_MWD+IFR2+MS+Sag (3) 9,681.00 84.13 10.57 4,823.20 4,740.31 2,195.84 2,175.64 5,961,324.48 601,992.09 3.97 2,540.28 3_MWD+IFR2+MS+Sag (4) 9,739.44 83.06 10.68 4,829.71 4,746.82 2,252.92 2,186.35 5,961,381.69 602,002.03 1.84 2,598.35 3_MWD+IFR2+MS+Sag (4) 9,803.52 85.99 11.69 4,835.83 4,752.94 2,315.49 2,198.72 5,961,444.41 602,013.57 4.83 2,662.12 3_MWD+IFR2+MS+Sag (4) 9,867.18 87.96 10.38 4,839.19 4,756.30 2,377.88 2,210.89 5,961,506.95 602,024.91 3.71 2,725.67 3_MWD+IFR2+MS+Sag (4) 9,930.30 89.75 9.22 4,840.45 4,757.56 2,440.07 2,221.63 5,961,569.27 602,034.82 3.38 2,788.78 3_MWD+IFR2+MS+Sag (4) 9,994.38 91.30 7.76 4,839.86 4,756.97 2,503.44 2,231.09 5,961,632.75 602,043.44 3.32 2,852.83 3_MWD+IFR2+MS+Sag (4) 10,057.64 92.53 6.35 4,837.75 4,754.86 2,566.18 2,238.85 5,961,695.59 602,050.37 2.96 2,915.97 3_MWD+IFR2+MS+Sag (4) 10,121.41 92.28 4.43 4,835.07 4,752.18 2,629.61 2,244.84 5,961,759.09 602,055.51 3.03 2,979.47 3_MWD+IFR2+MS+Sag (4) 10,184.64 91.91 2.52 4,832.76 4,749.87 2,692.68 2,248.67 5,961,822.20 602,058.50 3.07 3,042.25 3_MWD+IFR2+MS+Sag (4) 10,248.14 91.72 0.45 4,830.75 4,747.86 2,756.12 2,250.31 5,961,885.65 602,059.30 3.27 3,105.01 3_MWD+IFR2+MS+Sag (4) 10,311.76 91.54 358.02 4,828.94 4,746.05 2,819.71 2,249.46 5,961,949.21 602,057.61 3.83 3,167.48 3_MWD+IFR2+MS+Sag (4) 10,375.34 90.80 356.32 4,827.64 4,744.75 2,883.19 2,246.33 5,962,012.64 602,053.63 2.92 3,229.46 3_MWD+IFR2+MS+Sag (4) 10,438.64 90.80 355.89 4,826.76 4,743.87 2,946.34 2,242.03 5,962,075.72 602,048.49 0.68 3,290.90 3_MWD+IFR2+MS+Sag (4) 10,501.78 90.67 356.34 4,825.95 4,743.06 3,009.33 2,237.75 5,962,138.64 602,043.37 0.74 3,352.19 3_MWD+IFR2+MS+Sag (4) 10,565.77 90.30 355.78 4,825.40 4,742.51 3,073.17 2,233.35 5,962,202.41 602,038.13 1.05 3,414.29 3_MWD+IFR2+MS+Sag (4) 10,628.67 90.49 355.62 4,824.97 4,742.08 3,135.89 2,228.64 5,962,265.06 602,032.58 0.39 3,475.24 3_MWD+IFR2+MS+Sag (4) 10,693.10 90.67 355.31 4,824.32 4,741.43 3,200.11 2,223.54 5,962,329.20 602,026.64 0.56 3,537.61 3_MWD+IFR2+MS+Sag (4) 10,756.12 90.92 355.82 4,823.44 4,740.55 3,262.94 2,218.67 5,962,391.95 602,020.93 0.90 3,598.63 3_MWD+IFR2+MS+Sag (4) 10,819.95 90.74 356.06 4,822.52 4,739.63 3,326.60 2,214.15 5,962,455.55 602,015.57 0.47 3,660.54 3_MWD+IFR2+MS+Sag (4) ZW2022 4:12:05PM Page 6 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB2 Survey Calculation Method: Minimum Curvature Design: �Z-220PB2 Database: NORTH US + CANADA Survey qw Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (*/100,) (ft) Survey Tool Name 10,882.99 93.40 356.60 4,820.24 4,737.35 3,389.46 2,210.12 5,962,518.34 602,010.70 4.31 3,721.75 3_MWD+IFR2+MS+Sag (4) 10,946.73 93.77 356.70 4,816.26 4,733.37 3,452.97 2,206.40 5,962,581.79 602,006.14 0.60 3,783.65 3_MWD+IFR2+MS+Sag (4) 11,010.15 93.64 357.14 4,812.16 4,729.27 3,516.17 2,203.00 5,962,644.93 602,001.90 0.72 3,845.29 3_MWD+IFR2+MS+Sag (4) 11,074.07 92.09 357.29 4,808.96 4,726.07 3,579.93 2,199.90 5,962,708.64 601,997.95 2.44 3,907.55 3_MWD+IFR2+MS+Sag (4) 11,137.72 92.59 357.42 4,806.37 4,723.48 3,643.46 2,196.96 5,962,772.12 601,994.17 0.81 3,969.60 3_MWD+IFR2+MS+Sag (4) 11,201.43 92.28 356.21 4,803.66 4,720.77 3,707.01 2,193.43 5,962,835.61 601,989.79 1.96 4,031.58 3_MWD+IFR2+MS+Sag (4) 11,265.55 90.98 355.25 4,801.83 4,718.94 3,770.92 2,188.66 5,962,899.45 601,984.17 2.52 4,093.69 3_MWD+IFR2+MS+Sag (4) 11,328.34 91.66 356.83 4,800.39 4,717.50 3,833.55 2,184.32 5,962,962.01 601,979.01 2.74 4,154.61 3_MWD+IFR2+MS+Sag (4) 11,392.35 90.73 356.58 4,799.05 4,716.16 3,897.43 2,180.64 5,963,025.83 601,974.48 1.50 4,216.89 3_MWD+IFR2+MS+Sag (4) 11,459.16 90.98 356.29 4,798.06 4,715.17 3,964.11 2,176.49 5,963,092.44 601,969.44 0.57 4,281.83 3_MWD+IFR2+MS+Sag (4) 11,519.21 91.29 356.55 4,796.87 4,713.98 4,024.03 2,172.74 5,963,152.30 601,964.90 0.67 4,340.19 3_MWD+IFR2+MS+Sag (4) 11,583.06 89.81 355.34 4,796.25 4,713.36 4,087.71 2,168.22 5,963,215.91 601,959.54 2.99 4,402.12 3_MWD+IFR2+MS+Sag (4) 11,646.72 89.69 355.98 4,796.53 4,713.64 4,151.19 2,163.41 5,963,279.32 601,953.88 1.02 4,463.80 3_MWD+IFR2+MS+Sag (4) 11,710.07 90.31 354.68 4,796.53 4,713.64 4,214.33 2,158.25 5,963,342.37 601,947.88 2.27 4,525.08 3_MWD+IFR2+MS+Sag (4) 11,773.69 90.06 355.61 4,796.33 4,713.44 4,277.72 2,152.86 5,963,405.68 601,941.66 1.51 4,586.57 3_MWD+IFR2+MS+Sag (4) 11,837.22 88.38 355.31 4,797.19 4,714.30 4,341.04 2,147.84 5,963,468.93 601,935.79 2.69 4,648.06 3_MWD+IFR2+MS+Sag (4) 11,900.72 88.33 355.36 4,799.01 4,716.12 4,404.30 2,142.67 5,963,532.11 601,929.79 0.11 4,709.46 3_MWD+IFR2+MS+Sag (4) 11,964.04 87.96 355.61 4,801.06 4,718.17 4,467.39 2,137.69 5,963,595.12 601,923.97 0.71 4,770.73 3_MWD+IFR2+MS+Sag (4) 12,027.75 88.14 356.89 4,803.23 4,720.34 4,530.93 2,133.53 5,963,658.59 601,918.96 2.03 4,832.58 3_MWD+IFR2+MS+Sag (4) 12,091.69 88.27 357.51 4,805.23 4,722.34 4,594.76 2,130.41 5,963,722.37 601,914.99 0.99 4,894.90 3_MWD+IFR2+MS+Sag (4) 12,155.69 88.02 358.39 4,807.31 4,724.42 4,658.69 2,128.12 5,963,786.25 601,911.85 1.43 4,957.45 3_MWD+IFR2+MS+Sag (4) 12,219.15 88.70 359.89 4,809.12 4,726.23 4,722.11 2,127.17 5,963,849.66 601,910.06 2.59 5,019.75 3_MWD+IFR2+MS+Sag (4) 12,282.82 88.39 0.78 4,810.74 4,727.85 4,785.76 2,127.54 5,963,913.30 601,909.58 1.48 5,082.50 3_MWD+IFR2+MS+Sag (4) 12,346.19 88.45 0.81 4,812.49 4,729.60 4,849.10 2,128.42 5,963,976.64 601,909.62 0.11 5,145.03 3_MWD+IFR2+MS+Sag (4) 12,410.28 88.58 0.39 4,814.15 4,731.26 4,913.16 2,129.09 5,964,040.70 601,909.44 0.69 5,208.23 3_MWD+IFR2+MS+Sag (4) 12,473.16 89.63 1.18 4,815.13 4,732.24 4,976.03 2,129.95 5,964,103.56 601,909.47 2.09 5,270.29 3_MWD+IFR2+MS+Sag (4) 12,536.79 89.56 1.79 4,815.58 4,732.69 5,039.64 2,131.60 5,964,167.18 601,910.27 0.96 5,333.22 3_MWD+IFR2+MS+Sag (4) 12,600.84 89.32 2.76 4,816.21 4,733.32 5,103.63 2,134.14 5,964,231.20 601,911.96 1.56 5,396.69 3_MWD+IFR2+MS+Sag (4) 12,664.24 88.33 2.25 4,817.51 4,734.62 5,166.96 2,136.91 5,964,294.55 601,913.89 1.76 5,459.53 3_MWD+IFR2+MS+Sag (4) 12,728.56 87.46 1.96 4,819.87 4,736.98 5,231.19 2,139.27 5,964,358.80 601,915.40 1.43 5,523.20 3_MWD+IFR2+MS+Sag (4) 12,791.78 87.65 1.79 4,822.57 4,739.68 5,294.32 2,141.34 5,964,421.95 601,916.63 0.40 5,585.72 3_MWD+IFR2+MS+Sag (4) 12,855.38 87.03 1.52 4,825.52 4,742.63 5,357.82 2,143.17 5,964,485.47 601,917.62 1.06 5,648.58 3_MWD+IFR2+MS+Sag (4) 12,917.36 87.28 1.77 4,828.59 4,745.70 5,419.70 2,144.95 5,964,547.36 601,918.57 0.57 5,709.83 3_MWD+IFR2+MS+Sag (4) 12,981.95 88.02 2.23 4,831.24 4,748.35 5,484.20 2,147.20 5,964,611.87 601,919.97 1.35 5,773.74 3_MWD+IFR2+MS+Sag (4) 13,045.44 88.20 2.54 4,833.34 4,750.45 5,547.60 2,149.84 5,964,675.29 601,921.76 0.56 5,836.63 3_MWD+IFR2+MS+Sag (4) 13,108.58 88.08 2.84 4,835.38 4,752.49 5,610.63 2,152.81 5,964,738.36 601,923.89 0.51 5,899.23 3_MWD+IFR2+MS+Sag (4) 13,171.94 88.45 2.91 4,837.30 4,754.41 5,673.88 2,155.98 5,964,801.64 601,926.22 0.59 5,962.07 3_MWD+IFR2+MS+Sag (4) 13,235.79 88.70 2.70 4,838.89 4,756.00 5,737.64 2,159.11 5,964,865.43 601,928.50 0.51 6,025.40 3_MWD+IFR2+MS+Sag (4) 13,299.33 88.82 3.02 4,840.27 4,757.38 5,801.08 2,162.28 5,964,928.90 601,930.83 0.54 6,088.43 3_MWD+IFR2+MS+Sag (4) 13,363.03 88.39 3.69 4,841.82 4,758.93 5,864.66 2,166.00 5,964,992.51 601,933.71 1.25 6,151.68 3_MWD+IFR2+MS+Sag (4) ZW2022 4:12:05PM Page 7 COMPASS 5000.15 Build 91E Definitive Survey Report Company: Hilcorp North Slope, LLC Local Co-ordinate Reference: Well Z-220 Project: Prudhoe Bay TVD Reference: Z-220 Actual RKB @ 82.89usft Site: Z MD Reference: Z-220 Actual RKB @ 82.89usft Well: Z-220 North Reference: True Wellbore: Z-220PB2 Survey Calculation Method: Minimum Curvature Design: �Z-220PB2 Database: NORTH US + CANADA Survey Exi ' Map Map Vertical MD Inc Azi TVD TVDSS +N/-S +E/-W Northing Easting DLS Section (usft) (°) (°) (usft) (usft) (usft) (usft) (ft) (ft) (°/100,) (ft) Survey Tool Name 13,426.40 87.83 3.63 4,843.91 4,761.02 5,927.86 2,170.05 5,965,055.76 601,936.91 0.89 6,214.63 3_MWD+IFR2+MS+Sag (4) 13,490.57 87.71 2.67 4,846.40 4,763.51 5,991.89 2,173.57 5,965,119.82 601,939.58 1.51 6,278.29 3_MWD+IFR2+MS+Sag (4) 13,553.19 85.91 6.08 4,849.89 4,767.00 6,054.21 2,178.34 5,965,182.20 601,943.52 6.15 6,340.50 3_MWD+IFR2+MS+Sag (4) 13,617.59 86.17 9.40 4,854.34 4,771.45 6,117.87 2,186.99 5,965,245.96 601,951.33 5.16 6,404.69 3_MWD+IFR2+MS+Sag (4) 13,680.24 86.23 8.03 4,858.49 4,775.60 6,179.66 2,196.46 5,965,307.86 601,959.97 2.18 6,467.18 3_MWD+IFR2+MS+Sag (4) 13,744.62 87.40 6.56 4,862.07 4,779.18 6,243.41 2,204.62 5,965,371.72 601,967.29 2.92 6,531.39 3_MWD+IFR2+MS+Sag (4) 13,808.46 87.40 5.79 4,864.96 4,782.07 6,306.82 2,211.48 5,965,435.20 601,973.30 1.20 6,595.02 3_MWD+IFR2+MS+Sag (4) 13,872.64 87.40 4.01 4,867.88 4,784.99 6,370.69 2,216.96 5,965,499.14 601,977.93 2.77 6,658.88 3_MWD+IFR2+MS+Sag (4) 13,936.09 85.91 2.45 4,871.58 4,788.69 6,433.93 2,220.53 5,965,562.41 601,980.66 3.40 6,721.78 3_MWD+IFR2+MS+Sag (4) 13,998.54 84.86 0.89 4,876.60 4,793.71 6,496.15 2,222.34 5,965,624.64 601,981.65 3.00 6,783.36 3_MWD+IFR2+MS+Sag (4) 14,063.84 85.05 0.54 4,882.34 4,799.45 6,561.19 2,223.15 5,965,689.68 601,981.59 0.61 6,847.56 3_MWD+IFR2+MS+Sag (4) 14,126.88 86.17 0.62 4,887.17 4,804.28 6,624.04 2,223.79 5,965,752.53 601,981.40 1.78 6,909.56 3_MWD+IFR2+MS+Sag (4) 14,190.42 88.46 1.45 4,890.15 4,807.26 6,687.50 2,224.93 5,965,815.99 601,981.70 3.83 6,972.25 3_MWD+IFR2+MS+Sag (4) 14,254.02 90.43 2.23 4,890.76 4,807.87 6,751.06 2,226.98 5,965,879.57 601,982.90 3.33 7,035.20 3_MWD+IFR2+MS+Sag (4) 14,317.55 92.90 3.01 4,888.92 4,806.03 6,814.49 2,229.88 5,965,943.03 601,984.96 4.08 7,098.18 3_MWD+IFR2+MS+Sag (4) 14,381.99 94.39 3.51 4,884.82 4,801.93 6,878.69 2,233.54 5,966,007.27 601,987.76 2.44 7,162.04 3_MWD+IFR2+MS+Sag (4) 14,444.84 93.14 2.91 4,880.69 4,797.80 6,941.31 2,237.05 5,966,069.92 601,990.44 2.21 7,224.31 3_MWD+IFR2+MS+Sag (4) 14,508.84 91.85 2.09 4,877.91 4,795.02 7,005.18 2,239.84 5,966,133.82 601,992.38 2.39 7,287.70 3_MWD+IFR2+MS+Sag (4) 14,572.57 89.50 0.97 4,877.16 4,794.27 7,068.88 2,241.54 5,966,197.53 601,993.23 4.08 7,350.73 3_MWD+IFR2+MS+Sag (4) 14,636.11 90.06 1.36 4,877.40 4,794.51 7,132.41 2,242.83 5,966,261.06 601,993.68 1.07 7,413.51 3_MWD+IFR2+MS+Sag (4) 14,699.68 87.83 2.29 4,878.57 4,795.68 7,195.93 2,244.85 5,966,324.60 601,994.86 3.80 7,476.42 3_MWD+IFR2+MS+Sag (4) 14,763.61 86.10 3.54 4,881.96 4,799.07 7,259.68 2,248.10 5,966,388.38 601,997.26 3.34 7,539.77 3_MWD+IFR2+MS+Sag (4) 14,827.14 83.68 3.90 4,887.61 4,804.72 7,322.82 2,252.20 5,966,451.57 602,000.52 3.85 7,602.66 3_MWD+IFR2+MS+Sag (4) 14,888.59 84.24 5.21 4,894.08 4,811.19 7,383.74 2,257.06 5,966,512.54 602,004.57 2.31 7,663.50 3_MWD+IFR2+MS+Sag (4) 14,952.84 83.87 5.98 4,900.73 4,817.84 7,447.34 2,263.29 5,966,576.21 602,009.95 1.32 7,727.21 3_MWD+IFR2+MS+Sag (4) 15,016.74 80.94 6.19 4,909.18 4,826.29 7,510.31 2,270.00 5,966,639.26 602,015.83 4.60 7,790.40 3_MWD+IFR2+MS+Sag (4) 15,080.59 78.11 5.76 4,920.79 4,837.90 7,572.75 2,276.54 5,966,701.77 602,021.53 4.48 7,853.02 3_MWD+IFR2+MS+Sag (4) 15,145.01 76.98 6.01 4,934.68 4,851.79 7,635.32 2,282.99 5,966,764.42 602,027.15 1.79 7,915.76 3_MWD+IFR2+MS+Sag (4) 15,216.00 76.98 6.01 4,950.67 4,867.78 7,704.11 2,290.23 5,966,833.29 602,033.47 0.00 7,984.76 PROJECTED to TD Digitally signed Benjamin Hand Digitally signed by Benjamin Hand 02-07-2022 Checked By: Chelsea Wright DaM202202.0214:517a Wright'Approved By. j Date:2022.02.0309:59:11-09-00- Date. ZW2022 4:12:05PM Page 8 COMPASS 5000.15 Build 91E From: Joseph Lastufka To: Guhl, Meredith D (OGC) Subject: RE: [EXTERNAL] TPI PTD 221-105 PBU Z-220 Date: Thursday, February 24, 2022 8:42:45 AM CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. Sorry about that! 5878' MD, 4693' TVD. Would you like me to resubmit? THANKS! Thanks, Joe Lastufka Sr. Drilling Technologist Hilcorp North Slope, LLC Office: (907)777-8400, Cell:(907)227-8496 From: Guhl, Meredith D (OGC) <meredith.guhl@alaska.gov> Sent: Thursday, February 24, 2022 8:33 AM To: Joseph Lastufka <Joseph.Lastufka @hilcorp.com> Subject: [EXTERNAL] TPI PTD 221-105 PBU Z-220 Hi Joe, What's the TPI MD and TVD for the recently submitted PBU Z-220 please? Thanks, Meredith Meredith Guhl (she/her) Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhlCcDalaska.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.guhWalaska.g_ov. The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. From: Rixse, Melvin G (OGC) To: AOGCC Records (CED sponsored) Subject: FW: Hilcorp PBW Z-220 (PTD: 221-105) Update Date: Friday, January 28, 2022 5:13:35 PM Attachments: imaae001.ina From: Joseph Engel <jengel@hilcorp.com> Sent: Friday, January 28, 2022 10:56 AM To: Rixse, Melvin G (C)GC) <melvin.rixse@alaska.gov> Cc: Joseph Lastufka <Joseph.Lastufka@hilcorp.com>; Monty Myers <mmyers@hilcorp.com> Subject: Hilcorp PBW Z-220 (PTD: 221-105) Update CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. I wanted to give you an update on PBW Z-220. While drilling ahead in our production lateral we crossed a fault and built up to reacquire the OBd sand. After doing so, it was determined that we had actually faulted down and crossed through the OBc lobe and into a wet OBa lobe of the Schrader Bluff. The team made the decision to isolate the wet Oba sand to prevent water production from Z- 220 and future OBc producers. We have successfully ran an ECP with 500' of sacrificial tubing beneath it to a set depth of 12,410' MD, above the OBc sand, and pumped 31 bbls of 15.8ppg cement behind the packer and 4 bbls on top. Currently we are testing BOPEs and our plan forward will be to MU RSS lateral BHA, RIH and sidetrack the well in the OBd sand at — 9681' MD and drill ahead as per directional plan. PB1 information below. We will include the PB1 on the end of well schematic. Please let me know if you have any questions. Thank you for your time. -Joe Depth Interval OH Sidetrack Date Length (ft) M D, ft FBI 1/28/2022 1 pl a n n e d 01ST date; —9,681- 12,907' 3,226 STATE OF ALASKA Reviewed By: OIL AND GAS CONSERVATION COMMISSION P.I. Supry BODE Test Report for: PRUDHOE BAY UN ORM Z-220 - Comm Contractor/Rig No.: Hilcorp Innovation - PTD#: 2211050 - DATE: 1/18/2022 Inspector Brian Bixby Insp Source Operator: Hilcorp North Slope, LLC Operator Rep: lames Lott Rig Rep: Matt Vanhoose Inspector Type Operation: DRILL Sundry No: Test Pressures: Inspection No: bopBDB220119135105 Rams: Annular: Valves: MASP: Type Test: INIT 250/3000 250/3000 250/3000 1602 - Related Insp No: TEST DATA MISC. INSPECTIONS: MUD SYSTEM: ACCUMULATOR SYSTEM: P/F Visual Alarm Time/Pressure P/F Location Gen.: P Trip Tank P P System Pressure 3000 P " Housekeeping: P Pit Level Indicators P P Pressure After Closure 1450 P PTD On Location P Flow Indicator P P 200 PSI Attained 30 P _ Standing Order Posted _P Meth Gas Detector P_ P_ Full Pressure Attained 103 P ' Well Sign P H2S Gas Detector P P Blind Switch Covers: YES P ' Drl. Rig P MS Misc _NA_ _ NA Nitgn. Bottles (avg): 6*2383 P Hazard Sec. P ACC Misc 0 NA Misc NA FLOOR SAFTY VALVES: BOP STACK: CHOKE MANIFOLD: Quantity P/F Quantity Size P/F Quantity P/F Upper Kelly — 1 P Stripper _ 0 _- NA_ _ No. Valves 15 FPS Lower Kelly _ _ 1 ' -P_ Annular Preventer - 1 13 5/8"_ - P -- Manual Chokes 1 _ P Ball Type 2 FP ✓ #1 Rams 1 2 7/8x5 1/2_ P Hydraulic Chokes 1 P Inside BOP I P #2 Rams 1 Blinds P CH Misc 0 NA FSV Misc 0 NA #3 Rams 1 2 7/8x5 1/2 P #4 Rams 0 NA #5 Rams 0 NA INSIDE REEL VALVES: #6 Rams 0 NA (Valid for Coil Rigs Only) Choke Ln. Valves 1 - 3 1/8 P Quantity P/F HCR Valves 2 3 1/8 FP ✓ Inside Reel Valves 0—NA Kill Line Valves 2 3 1/8 P Check Valve 0 - - - NA_ BOP Misc 1 Flange -_ FP,/ Number of Failures: 4 ✓ Test Results Test Time 6 Remarks: Tested with 4.5" and 5" test joints, Tested all PVT's and Gas Alarms, TIW serviced FP, HCR Kill serviced FP CM Valve #15 serviced FP and Flange was tighteded FP. Accumulator Closer Times = Annular 9sec, UPR 8sec, Blinds 8sec, LPR 4sec, Kill and Choke both 1sec. 20 precharge Bottles ALL at 1000psi each. STATE OF ALASKA Reviewed By: OIL AND GAS CONSERVATION COMMISSION P.I. Supry DIVERTER Test Report for: PRUDHOE BAY UN ORIN Z-220 , Comm Contractor/Rig No.: Hilcorp Innovation PTD#: 2211050 ' DATE: 1/10/2022 ' Inspector Austin McLeod Insp Source Operator: Hilcorp North Slope, LLC Operator Rep: Shane Barber Rig Rep: Matt Vanhoose Inspector Well Class: DEV Inspection No: divSAM220110201217 Related Insp No: MISC. INSPECTIONS: P/F Location Gen.: P Housekeeping: _P Warning Sign _P " 24 hr Notice: P Well Sign: P Drlg. Rig. P ' Misc: NA GAS DETECTORS: Visual Alarm Methane: P ' P Hydrogen Sulfide: _P _P Gas Detectors Misc: NA NA TEST DATA MUD SYSTEM: Visual Alarm Trip Tank: P P ' Mud Pits: P P ' Flow Monitor: P P Mud System Misc: NA NA_ ACCUMULATOR SYSTEM: Time/Pressure P/F Systems Pressure: 3000 - _ P Pressure After Closure: 1950 P 200 psi Recharge Time: 16 _ P_ Full Recharge Time: 51 P Nitrogen Bottles (Number of): 6_ ' P_ Avg. Pressure:2353 P ' Accumulator Misc: 0 NA DIVERTER SYSTEM: Size P/F Designed to Avoid Freeze-up? P- Remote Operated Diverter? P No Threaded Connections? P " Vent line Below Diverter? P " Diverter Size: 13.625 P Hole Size: 12.25 P Vent Line(s) Size: 16_ - P Vent Line(s) Length: 253 P ' Closest Ignition Source: 100 P Outlet from Rig Substructure: 235 P Vent Line(s) Anchored: P Turns Targeted / Long Radius: NA Divert Valve(s) Full Opening:_ _ P___` Valve(s) Auto & Simultaneous: Annular Closed Time: 10 P - Knife Valve Open Time, 6 P' Diverter Misc: 0 NA Number of Failures: 0 Test Time: I Remarks: 5- joint. THE STATE Alaska Oil and Gas ofA ASKA Conservation Commission GOVERNOR MIKE DUNLE VY 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www.aogcc.alaska.gov Monty Myers Drilling Manager Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400 Anchorage, AK, 99503 Re: Prudhoe Bay Field, Schrader Bluff Oil Pool, PBU Z-220 Hilcorp North Slope, LLC Permit to Drill Number: 221-105 Surface Location: 4295' FSL, 2832' FEL, Sec. 18, T11N, R12E, Umiat Meridian Bottomhole Location: 694' FNL, 172' FEL, Sec. 7, T11N, R12E, Umiat Meridian Dear Mr. Myers: Enclosed is the approved application for the permit to drill the above referenced well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the AOGCC 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 AOGCC 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 an AOGCC order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, Digitally signed by Jeremy Jeremy Price `aCe Date: 2021.12.10 10:20:34 -09,00, Jeremy M. Price Chair DATED this 10 day of December, 2021. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 20 AAC 25.005 RECEIVED By Samantha Carlisle at 8:45 am, Dec 03, 2021 la. Type of Work: 1 b. Proposed Well Class: Exploratory - Gas ❑ Service - WAG ❑ Service - Disp ❑ 1 c. Specify if well is proposed for: Drill 0 Lateral ❑ Stratigraphic Test ❑ Development - Oil 0 Service - Winj ❑ Single Zone ❑ Coalbed Gas ❑ Gas Hydrates❑ Redrill ❑ Reentry ❑ Exploratory - Oil ❑ Development - Gas ❑ Service - Supply ❑ Multiple Zone ❑ Geothermal ❑ Shale Gas ❑ 2. Operator Name: 5. Bond Blanket 0 Single Well ❑ 11. Well Name and Number: Hilcorp North Slope, LLC Bond No. 107205344 PBU Z-220 ' 3. Address: 6. Proposed Depth: 12. Field/Pool(s): 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 MD: 18,384' TVD: 4,933' Prudhoe Bay Field / Schrader Bluff Oil Pool, 4a. Location of Well (Governmental Section): 7. Property Designation (Lease Number): Orion Development Area Surface: 4295' FSL, 2832' FEL, Sec. 19, T11 N, R12E, UM, AK ADL 028262 & 047450 8. DNR Approval Number: 13. Approximate spud date: Top of Productive Horizon: 1631' FNL, 1976' FWL, Sec. 19, T11N, R12E, UM, AK 85-009 January 5, 2022 9. Acres in Property: 14. Distance to Nearest Property: Total Depth: 694' FNL, 172' FEL, Sec. 07, T11 N, R12E, UM, AK 4949 7,288' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 82.6' feet 15. Distance to Nearest Well Surface: x- 599846 ' y- 5959100 ' Zone - 4 GL Elevation above MSL: 56.1' feet Open to Same Pool: 1,635' 16. Deviated wells: Kickoff Depth: 300 feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 96 degrees Downhole: 2072 Surface: 1602 18. Casinq 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) 42" 20" x 34" 215.5# A-53 80' Surface Surface 136' 136' 17 yds Concrete 12-1/4" 9-5/8" 47# L-80 Vam 21 2,500' Surface Surface 2,500' 2,148' Stg 1 L - 1068 ft 3 / T - 458 ft3 12-1/4" 9-5/8" 40# L-80 BTC 3,624' 2,500' 2,148' 6,124' 4,710' Stg 2 L - 2527 ft3 / T - 313 ft3 .i Tieback 7" 26# L-80 JEF Bear 5,350' Surface Surface 5,350' 4,536' Uncemented Tieback Liner x 6-5/8" 26# / 20# L-80 Hyd 563 12,360' 6,024' 1 4,710' 1 18,384' 4,933' Uncemented Slotted Liner 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): FEffect. Depth TVD (ft): Junk (measured): Casing Length Size Cement Volume MD TVD Conductor/Structural Surface Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): Hydraulic Fracture planned? Yes ❑ No 0 ' 20. Attachments Property Plat 0 BOP Sketch 0 Drilling Program 0 Time v. Depth Plot 0 Shallow Hazard Analysis ❑ Diverter Sketch 0 Seabed Report ❑ Drilling Fluid Program 0 20 AAC 25.050 requirements 0 21. 1 hereby certify that the foregoing is true and the procedure approved herein will not be deviated Contact Name: Joe Engel from without prior written approval. Joseph Engel (2493) Joseph Engel Authorized Name: Monty Myers 2021.12.02 16:28:15 Contact Email: jengel@hilcorp.com (24 QZ�)-09'00' Authorized Title: Drilling Manager Joe Engel For Monty Myers Contact Phone: 777-8395 Authorized Signature: Date: Commission Use Only Permit to Drill 221105 Number: - API Number: 50-029-23705-00-00 Permit Approval Date: 12/10/2021 See cover letter for other 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: 0 Other: BOPE test to 3000 psi. Annular to 2500 psi. Samples req'd: Yes ❑ No 9 Mud log req'd: Yes ❑ No 0 H2S measures Yes 0 No ❑ Directional svy req'd: Yes 0 No ❑ Spacing exception req'd: Yes ❑ No 0 Inclination -only svy req'd: Yes ❑ No 0 Post initial injection MIT req'd: Yes ❑ No ❑ Dl UIlysignedby,eremyNice APPROVED BY 12/10/21 Approved by: Jeremy Price .1e002 2,,2.1010:20:52 COMMISSIONER THE COMMISSION Date: Commdts 12/9/2021 Comm.JLC 12/10/2021 1Sr Pet EnWGR09DEC2021 ISr Pet Geo SFD 12/3/2021 Sr Res Eng Form 10-401 Revised 3/2021 This permit is valid for 24 months from the date of approval (20 AAC 25.005(g)) Hilcorp Alaska, LLC Prudhoe Bay West (PBU) Z-220 Drilling Permit Version 1 11/29/2021 Table of Contents 1.0 Well Summary........................................................................................................................... 2 2.0 Management of Change Information........................................................................................3 3.0 Tubular Program: ...................................................................................................................... 4 4.0 Drill Pipe Information: .............................................................................................................. 4 5.0 Internal Reporting Requirements............................................................................................. 5 6.0 Planned Wellbore Schematic.....................................................................................................6 7.0 Drilling / Completion Summary................................................................................................7 8.0 Mandatory Regulatory Compliance / Notifications.................................................................. 8 9.0 R/U and Preparatory Work.....................................................................................................10 10.0 N/U 13-5/8" 5M Diverter System............................................................................................. I I 11.0 Drill 12-1/4" Hole Section........................................................................................................13 12.0 Run 9-5/8" Surface Casing......................................................................................................16 13.0 Cement 9-5/8" Surface Casing................................................................................................. 21 14.0 ND Diverter, NU BOPE, & Test.............................................................................................. 26 15.0 Drill 8-1/2" Hole Section.......................................................................................................... 27 16.0 Run 6-5/8" Liner......................................................................................................................32 17.0 Run 7" Tieback........................................................................................................................36 18.0 Run Upper Completion/ Post Rig Work................................................................................. 39 19.0 Innovation Rig Diverter Schematic.........................................................................................41 20.0 Innovation Rig BOP Schematic............................................................................................... 42 21.0 Wellhead Schematic................................................................................................................. 43 22.0 Days Vs Depth.......................................................................................................................... 44 23.0 Formation Tops & Information............................................................................................... 45 24.0 Anticipated Drilling Hazards.................................................................................................. 47 25.0 Innovation Rig Layout............................................................................................................. 51 26.0 FIT Procedure.......................................................................................................................... 52 27.0 Innovation Rig Choke Manifold Schematic............................................................................ 53 28.0 Casing Design........................................................................................................................... 54 29.0 8-1/2" Hole Section MASP....................................................................................................... 55 30.0 Spider Plot (NAD 27) (Governmental Sections)...................................................................... 56 31.0 Surface Plat (As Built) (NAD 27)............................................................................................. 57 32.0 Offset Wells: TVD & MW....................................................................................................... 58 Hileorp E-w m 1.0 Well Summary Prudhoe Bay West Z-220 SB Producer Drilling Procedure Well PBU Z-220 Pad Prudhoe Bay Z Pad Planned Completion Type 4-1/2" Gas Lift Target Reservoirs Schrader Bluff OBd Sand Planned Well TD, MD / TVD 18,383' MD / 4,932' TVD PBTD, MD / TVD 18,373' MD / 4,932' TVD Surface Location Governmental 4295' FSL, 2832' FEL, Sec l9, T11N, R12E, UM, AK Surface Location AD 27 X= 599846, Y= 5959100 Top of Productive Horizon Governmental 163 1'FNL, 1976' FWL, Sec 19, T11N, R12E, UM, AK TPH Location AD 27 X=599708, Y= 5958451 BHL Governmental 694' FNL, 172' FEL, Sec 7, T11N, R12E, UM, AK BHL AD 27 X= 602319, Y= 5969984 AFE Number 211-00053 AFE Drilling Days 21 AFE Completion Days 4 Maximum Anticipated Pressure Surface 1602 psig Maximum Anticipated Pressure Downhole/Reservoir 2072 psig Work String 5" 19.5# S-135 NC 50 Innovation KB Elevation above MSL: 26.5 ft + 56.1 ft = 82.6 ft GL Elevation above MSL: 56.1 ft BOP Equipment 13-5/8" x 5M Annular, 3 ea 13-5/8" x 5M Rams Page 2 HilcmEnergyCompmy 2.0 Management of Change Information Prudhoe Bay West Z-220 SB Producer Drilling Procedure Hilcorp Alaska. LLC Hilcor� Farm [• Changes to Approved Permit to Drill Date: 1112912021 Subject: Changes to Approved Permit to Drill for PBU Z-220 File #: PBU Z-220 Drilling and Completion Program Any modifications to PBU Z-220 Drilling & Completion Program will be documented and approved below - Changes to an approved PTO will be communicated to the AQGCC. and approved in advance. before implementation. Sec Page Date Procedure Change Authored By Approved B App rova L Drilling Manager Prepared: Drilling Engineer Page 3 Date Date Prudhoe Bay West Z-220 SB Producer Hilco Drilling Procedure E-W n 3.0 Tubular Program: Hole Section OD (in) ID in Drift in Conn OD in Wt #/ft(psi) Grade Conn Burst Collapse (psi) Tension k-lbs Cond 20" 19.25" - - - X-52 Weld 9-5/8" 8.835" 8.679" 10.625" 40 L-80 BTC 5,750 3,090 916 12-1/4" 9-5/8" 8.681" 8.525" 10.625" 47 L-80 VAM 21 6,870 4,750 1,086 Tieback 7" 6.276 6.151 7.565 26 L-80 JFE Bear 7,240 5,410 604 8-1/2" 6-5/8" 6.049 5.924 7.390 20 L-80 Hydril563 6090 3470 459 Tubing 4-1/2" 3.958 3.833 4.937 12.6 L-80 VAMTOP 8,430 7,500 288 4.0 Drill Pipe Information: Hole Section OD (in) ID (in) TJ ID (in) TJ OD Wt #/ft Grade Conn M/U (Min) M/U (Max) Tension (k-lbs) Surface & 5" 4.276" 3.25" 6.625" 19.5 S-135 DS50 36,100 43,100 560k1b Production 5" 4.276" 3.25" 6.625" 19.5 S-135 NC50 30,730 34,136 560klb All casing will be new, PSL 1 (100% mill inspected, 10% inspection upon delivery). Page 4 Hilcorp E �w m 5.0 Internal Reporting Requirements Prudhoe Bay West Z-220 SB Producer Drilling Procedure 5.1 Fill out daily drilling report and cost report on WellEz. • Report covers operations from 6am to 6am • Click on one of the tabs at the top to save data entered. If you click on one of the tabs to the left of the data entry area — this will not save the data entered, and will navigate to another data entry. • Ensure time entry adds up to 24 hours total. • Try to capture any out of scope work as NPT. This helps later on when we pull end of well reports. • Enter the MD and TVD depths EVERY DAY whether you are making hole or not. 5.2 Afternoon Updates • Submit a short operations update each work day to pmazzolinikhilcorp.com, mmyerskhilgom nathan.sperry&hilcorp.com, jenizelkhilcorp.com and joseph.lastufkakhilcorp.com 5.3 Intranet Home Page Morning Update • Submit a short operations update each morning by lam on the company intranet homepage. On weekend and holidays, ensure to have this update in before 5am. 5.4 EHS Incident Reporting • Health and Safety: Notify EHS field coordinator. • Environmental: Drilling Environmental Coordinator • Notify Drilling Manager & Drilling Engineer on all incidents • Submit Hilcorp Incident report to contacts above within 24 hrs 5.5 Casing Tally • Send final "As -Run" Casing tally to mmers&hilcorp,com jengelghilcorp.com and j oseph.lastufkanhilcorp. com 5.6 Casing and Cement report • Send casing and cement report for each string of casing to mmj ers9hilcorp.com jenael&hilcorp.com and joseph.lastufkaghilcorp.com 5.7 Hilcorp Contact List: Title Name Work Phone Email Drilling Manager Monty Myers 907.777.8431 mmyers@hilcj com Drilling Engineer Joe Engel 907.777.8395 iengel@hilcorp.com Drilling Engineer Nate Sperry 907.777.8450 nathan.sperrv@hilcorp.com Completion Engineer Wyatt Rivard 907.777.8547 wrivard@hilcorp.com Geologist Kevin Eastham 907.777.8316 keastham@hilcorp.com Reservoir Engineer Michael Mayfield 907.564.5097 mmayfield@hilcorp.com Drilling Env. Coordinator Keegan Fleming 907.777.8477 kfleming@hilcorp.com EHS Manager Laura Green 907.777.8314 lajzreen@hilcj com Drilling Tech Joe Lastufka 907.777.8400 Joseph.Lastufka@hiIcorp.com Page 5 Hileorp Alaska. 1,1,1 Orig. KB Elev.: 82.6' / GL Elev.: 56.1' TD=18,384 (MD) / TD = 4,933' (TVD) PBTD=18,384 (MD) / PBTD = 4,933' (TVD) PROPOSED SCHEMATIC Prudhoe Bay Unit Well: PBU Z-220 Last Completed: TBD PTD: TBD TREE & WELLHEAD Tree Cameron 3 1/8" 5M w/ 4-1/16" 5M Cameron Wing Wellhead FMC 11" 5K x sliplock bottom w/ (2) 2-1/16" 5K outs OPEN HOLE / CEMENT DETAIL 42" 17 yards Concrete 12-1/4" Stg 1— Lead — 1068 ft3 / Tail — 458 ft3 Stg 2 — Lead — 2527 ft3 / Tail — 313 ft3 8-1/2" Cementless Slotted Liner CASING DETAIL Size Type Wt/ Grade/ Conn ID Top Btm BPF 20" x 34" Conductor 215.5 / A-53 / Weld N/A Surface 110, N/A 9-5/8" Surface 47/ L-80 / VAM 21 8.681 Surface 2,500' 0.0732 9-5/8" Surface 40 / L-80 / BTC 8.835 2,500' 6,124' • 0.0758 7" Tieback 26 / L-80 / JEF Bear 6.276 Surface 5,350' 0.0383 7" x 6-5/8" Liner 26 x 20 / L-80 / Hyd 563 3.920 6,024' 18,384' • .0149 TUBING DETAIL 4-1/2" Tubing 12.6# / L-80 / TXP-SR 3.958 1 Surface 1 6100' 0.0152 WELL INCLINATION DETAIL KOP @ 300' 90° Hole Angle = @ 6024' MD JEWELRY DETAIL No. Top MD Item ID 1 —2,200' X Nipple 3.813" 2 —3425 GLM @ 2877 3 —4350 GLM @ 3788 4 —4900 GLM @ 4248 5 —5280 GLM @ 4510 6 —5300 X Nipple 3.813" 7 —5350 7" x 9-5/8" Liner Hanger w/ Tieback Sleeve 8 —5400 Liner Top Packer 9 —5490 Production Packer 10 —5550 X Nipple @ —68 deg inc 3.813" 11 —6100 WLEG — Bottom @ 7" x 6-5/8" XO 12 18,384' Shoe 6-5/8" SLOTTED LINER DETAIL GENERAL WELL INFO API: TBD Completion Date: TBD Revised By: BW 12/1/2021 Hilcorp E �w m 7.0 Drilling / Completion Summary Prudhoe Bay West Z-220 SB Producer Drilling Procedure PBU Z-220 is a grassroots producer planned to be drilled in the Schrader Bluff OBd sands. Z-220 is part of a multi -well program targeting the Schrader Bluff sand on PBU Z-pad The directional plan is 12-1/4" surface hole and 9-5/8" surface casing set into the top of the Schrader Bluff OBd sand. An 8-1/2" lateral section will be drilled. A 6-5/8" slotted liner will be run in the open hole section, followed by a 7" tieback and 4-1/2" gas lift tubing. The Innovation Rig will be used to drill and complete the wellbore. Drilling operations are expected to commence approximately January 5, 2022, pending rig schedule. Surface casing will be run to 6,124' MD / 4,710' TVD and cemented to surface via a 2 stage primary cement job. Cement returns to surface will confirm TOC at surface. If cement returns to surface are not observed, necessary remedial action will then be discussed with AOGCC authorities. All cuttings & mud generated during drilling operations will be hauled to one of two locations: Primary: Prudhoe G&I on Pad 4 Secondary: the Milne Point `B" pad G&I facility General sequence of operations: 1. MIRU Innovation Rig to well site 2. N/U & Test 13-5/8" Diverter and 16" diverter line 3. Drill 12-1/4" hole to TD of surface hole section. Run and cement 9-5/8" surface casing 4. N/D diverter, N/U wellhead, NU 13-5/8" 5M BOP & Test 5. Drill 8-1/2" lateral to well TD 6. Run 6-5/8" production liner (T x 6-5/8°) 7. Run 7" tieback 8. Run Upper Completion 9. N/D BOP, N/U Tree, RDMO Reservoir Evaluation Plan: 1. Surface hole: No mud logging. Remote geologist. LWD: GR + Res 2. Production Hole: No mud logging. Remote geologist. LWD: GR + ADR (For geo-steering) Page 7 Hileorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 8.0 Mandatory Regulatory Compliance / Notifications Regulatory Compliance Ensure that our drilling and completion operations comply with the all applicable AOGCC regulations, specific regulations are listed below. If additional clarity or guidance is required on how to comply with a specific regulation, do not hesitate to contact the Anchorage Drilling Team. • BOPs shall be tested at (2) week intervals during the drilling and completion of PBU Z-220. Ensure to provide AOGCC 24 hrs notice prior to testing BOPs. • The initial test of BOP equipment will be to 250/3,000 psi & subsequent tests of the BOP equipment will be to 250/3,000 psi for 5/5 min (annular to 50% rated WP, 2,500 psi on the high test for initial and subsequent tests). Confirm that these test pressures match those specified on the APD. • If the BOP is used to shut in on the well in a well control situation or control fluid flow from the well bore, AOGCC is to be notified and we must test all BOP components utilized for well control prior to the next trip into the wellbore. This pressure test will be charted same as the 14 day BOP test. • All AOGCC regulations within 20 AAC 25.033 "Primary well control for drilling: drilling fluid program and drilling fluid system". • All AOGCC regulations within 20 AAC 25.035 "Secondary well control for primary drilling and completion: blowout prevention equipment and diverter requirements". o Ensure the diverter vent line is at least 75' away from potential ignition sources • Ensure AOGCC approved drilling permit is posted on the rig floor and in Co Man office. • Casing pressure test criteria in 20 AAC 25.030 (e) Casing and Cementing, "A casing pressure test must be performed if BOPE is to be installed on a casing. The casing must be tested to hold a minimum surface pressure equal to 50 percent of the casing internal yield pressure. The test pressure must show stabilizing pressure and may not decline more than 10 percent within 30 minutes. The results of this test and any subsequent tests of the casing must be recorded as required by 20 AAC 25.070(1) ". AOGCC Regulation Variance Requests: No variances requested at this time. Page 8 Hileorp E �w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure Summary of Innovation BOP Equipment & Test Requirements Hole Section Equipment Test Pressure(psi) 12-1/4" 0 13-5/8" 5M CTI Annular BOP w/ 16" diverter line Function Test Only • 13-5/8" x 5M Control Technology Inc Annular BOP • 13-5/8" x 5M Control Technology Inc Double Gate Initial Test: 250/3,000 o Blind ram in btm cavity • Mud cross w/ 3" x 5M side outlets 84/2" • 13-5/8" x 5M Control Technology Single ram • 3-1/8" x 5M Choke Line Subsequent Tests: • 3-1/8" x 5M Kill line 250/3,000 • 3-1/8" x 5M Choke manifold • Standpipe, floor valves, etc Primary closing unit: Control Technology Inc. (CTI), 6 station, 3,000 psi, 220 gallon accumulator unit. Primary closing hydraulics is provided by an electrically driven triplex pump. Secondary back-up is an electric triplex pump on a different electrical circuit and emergency pressure is provided by bottled nitrogen. The remote closing operator panels are located in the doghouse and on accumulator unit. Required AOGCC Notifications: • Well control event (BOPs utilized to shut in the well to control influx of formation fluids). • 24 hours notice prior to spud. • 24 hours notice prior to testing BOPs and changingrams ams • 24 hours notice prior to casing running & cement operations. • Any other notifications required in APD. Regulatory Contact Information: AOGCC Jim Regg / AOGCC Inspector / (0): 907-793-1236 / Email: jim.regakalaska.gov Victoria Loepp / Petroleum Engineer / (0): 907-793-1247 / Email: Victoria.loepp&alaska.gov Mel Rixse / Petroleum Engineer / (0): 907-793-1231 / (C): 907-223-3605 / Email: melvin.rixsegalaska.gov Primary Contact for Opportunity to witness: AOGCC.Inspectorskalaska.gov Test Inspection notification standardization format: hgp:Hdoa.alaska.gov/oac/forms/TestWitnessNotif html Notification / Emergency Phone: 907-793-1236 (During normal Business Hours) Notification / Emergency Phone: 907-659-2714 (Outside normal Business Hours) Page 9 Hileorp E-w m 9.0 R/U and Preparatory Work Prudhoe Bay West Z-220 SB Producer Drilling Procedure 9.1 Z-220 will utilize a 20" conductor on Z-pad. Ensure to review attached surface plat and make sure rig is over appropriate conductor. 9.2 Ensure PTD and drilling program are posted in the rig office and on the rig floor. 9.3 Install landing ring. 9.4 Insure (2) 4" nipples are installed on opposite sides of the conductor with ball valves on each. 9.5 Level pad and ensure enough room for layout of rig footprint and R/U. 9.6 Rig mat footprint of rig. 9.7 MIRU Innovation. Ensure rig is centered over conductor to prevent any wear to BOPE or wellhead. 9.8 Mud loggers WILL NOT be used on either hole section. 9.9 Mix spud mud for 12-1/4" surface hole section. Ensure mud temperatures are cool (<80°F). • Cold mud temps are necessary to mitigate hydrate breakout 9.10 Ensure 5" liners in mud pumps. • White Star Quattro 1,300 HP mud pumps are rated at 4,097 psi, 381 gpm @ 140 spm @ 96.5% volumetric efficiency. Page 10 Hileorp E-w m 10.0 NX 13-5/8" 5M Diverter System Prudhoe Bay West Z-220 SB Producer Drilling Procedure 10.1 N/U 13-5/8" CTI BOP stack in diverter configuration (Diverter Schematic attached to program). • N/U 20" x 13-5/8" DSA • N/U 13 5/8", 5M diverter "T". • NU Knife gate & 16" diverter line. • Ensure diverter R/U complies with AOGCC reg 20.AAC.25.035(C). • Diverter line must be 75 ft from nearest ignition source • Place drip berm at the end of diverter line. • Utilized extensions if needed. 10.2 Notify AOGCC with 24 hour notice to witness. Function test diverter. • Ensure that the knife gate and annular are operated on the same circuit so that knife gate opens prior to annular closure. • Ensure that the annular closes in less than 30 seconds (API Standard 64 3rd edition March 2018 section 12.6.2 for packing element ID less than or equal to 20") 10.3 Ensure to set up a clearly marked "warning zone" is established on each side and ahead of the vent line tip. "Warning Zone" must include: • A prohibition on vehicle parking • A prohibition on ignition sources or running equipment • A prohibition on staged equipment or materials • Restriction of traffic to essential foot or vehicle traffic only. Page 11 Hilcorp E—w m 10.4 Rig & Diverter Orientation: • May change on location 17 a 18 46 19 20 ■ SK �n Page 12 NC Prudhoe Bay West Z-220 SB Producer Drilling Procedure 2C ■ �+0 zm l � �i ell, 261 1 75' Radius Clear of E-gnition Sources ❑iverter Line PBU Z-Pad 'Drawing not to scale Diverter line may be oriented different an location Hileorp E-w m 11.0 Drill 12-1/4" Hole Section Prudhoe Bay West Z-220 SB Producer Drilling Procedure 11.1 P/U 12-1/4" directional drilling assembly: • Ensure BHA components have been inspected previously. • Drift and caliper all components before M/U. Visually verify no debris inside components that cannot be drifted. • Ensure TF offset is measured accurately and entered correctly into the MWD software. • Consider running a UBHO sub for wireline gyro. GWD will be the primary gyro tool. • Have DD run hydraulics calculations on site to ensure optimum nozzle sizing. • Drill string will be 5" 19.5# 5-135. • Run a solid float in the surface hole section. 11.2 Begin drilling out from 20" conductor at reduced flow rates to avoid broaching the conductor. • Consider using a trash bit to clean out conductor to mitigate potential damage from debris in conductor. 11.3 Drill 12-1/4" hole section to section TD, in the Schrader OBd sand. Confirm this setting depth with the Geologist and Drilling Engineer while drilling the well. • Monitor the area around the conductor for any signs of broaching. If broaching is observed, Stop drilling (or circulating) immediately notify Drilling Engineer. • Efforts should be made to minimize dog legs in the surface hole. Keep DLS < 6 deg / 100. • Hold a safety meeting with rig crews to discuss: • Conductor broaching ops and mitigation procedures. • Well control procedures and rig evacuation • Flow rates, hole cleaning, mud cooling, etc. • Pump sweeps and maintain mud rheology to ensure effective hole cleaning. • Keep mud as cool as possible to keep from washing out permafrost. • Pump at 400-600 gpm. Monitor shakers closely to ensure shaker screens and return lines can handle the flow rate. • There have been `directional dead zones' noted in PBW. Directional plan has a build up in DLS from 2 — 4, to allow gradual build. If possible get ahead of build rates while still meeting tangent hold target. • Ensure to not out drill hole cleaning capacity, perform clean up cycles or reduce ROP if packoffs, increase in pump pressure or changes in hookload are seen • Slow in/out of slips and while tripping to keep swab and surge pressures low • Ensure shakers are functioning properly. Check for holes in screens on connections. • Have the flowline jets hooked up and be ready to jet the flowline at the first sign of pea gravel, clay balling or packing off. • Adjust MW and viscosity as necessary to maintain hole stability, ensure MW is at a 9.5 at base of perm and at TD (pending MW increase due to hydrates). This is to combat hydrates and free gas risk, based upon offset wells. • Perform gyro surveys until clean MWD surveys are seen. Take MWD surveys every stand drilled. Page 13 Hilcorp �� Prudhoe Bay West Z-220 SB Producer Drilling Procedure Be prepared for gas hydrates,In PBW they have been encountered typically around 1660' TVD (Base of Perm) to 2740' TVD (Top Ugnu) and below. Be prepared for hydrates: • Gas Hydrates have been seen on Z pad, Last SB Well Z-210 • Keep mud temperature as cool as possible, Target 60-70*F. • Dump and dilute as necessary to maintain temp, utilize cold water on the rig as well as cold pre -made mud on trucks ready. • Drill through hydrate sands and quickly as possible, do not backream. • Gas hydrates can be identified by the gas detector and a decrease in MW or ECD • Monitor returns for hydrates, checking pressurized & non -pressurized scales • Do not stop to circulate out gas hydrates — this will only exacerbate the problem by washing out additional permafrost. Attempt to control drill (150 fph MAX) through the zone completely and efficiently to mitigate the hydrate issue. Flowrates can also be reduced to prevent mud from belching over the bell nipple. • Gas hydrates are not a gas sand, once a hydrate is disturbed the gas will come out of the well. MW will not control gas hydrates, but will affect how gas breaks out at surface. Take MWD and GWD surveys every stand until magnetic interference cleans up. After MWD surveys show clean magnetics, only take MWD surveys. Surface Hole AC, CF <1.0 : • Highland St No 1: has a Clearance factor of < 1.0. Highland St No 1 (PTD: 76-17) was an exploration well drilling in 1976, and was permanently plugged and abandoned in 1997. The only risk of contact with this well is damage to the bit. 11.4 12-1/4" hole mud program summary: • Density: Weighting material to be used for the hole section will be barite. Additional barite or spike fluid will be on location to weight up the active system (1) ppg above highest anticipated MW. We will start with a simple gel + FW spud mud at 8.8 ppg and TD with 9.5+ ppg. MW for free gas and hydrates based upon offset wells Depth Interval MW ( ) Surface — Base Permafrost 8.9+ Base Permafrost - TD 9.5+ (For Hydrates/Free Gas based on offset wells • PVT System: PVT will be used throughout the drilling and completion phase. Remote monitoring stations will be available at the driller's console, Co Man office, Toolpusher office, and mud loggers office. • Rheology: Aquagel and Barazan D+ should be used to maintain rheology. Begin system with a 75 YP but reduce this once clays are encountered. Maintain a minimum 25 YP at all times while drilling. Be prepared to increase the YP if hole cleaning becomes an issue. Fluid Loss: DEXTRID and/or PAC L should be used for filtrate control. Background LCM (10 ppb total) BARACARBs/BAROFIBRE/STEELSEALs can be used in the system while drilling the surface interval to prevent losses and strengthen the wellbore. Page 14 Hilcorp E �w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure Wellbore and mud stability: Additions of CON DET PRE-MIX/DRIL N SLIDE are recommended to reduce the incidence of bit balling and shaker blinding when penetrating the high -clay content sections of the Sagavanirktok and the heavy oil sections of the UGNU 4A. Maintain the pH in the 8.5 — 9.0 range with caustic soda. Daily additions of ALDACIDE G / X-CIDE 207 MUST be made to control bacterial action. • Casing Running: Reduce system YP with DESCO as required for running casing as allowed (do not jeopardize hole conditions). Run casing carefully to minimize surge and swab pressures. Reduce the system rheology once the casing is landed to a YP < 20 (check with the cementers to see what YP value they have targeted). System Type: 8.8 — 9.8 ppg Pre -Hydrated Aquagel/freshwater spud mud Properties: Section Density Viscosity Plastic Viscosi Yield Point API FL pH Temp Surface 8.8 — 9.8 75-175 20 - 40 25-45 <10 8.5-9.0 < 70 F System Formulation: Gel + FW spud mud Product Concentration Fresh Water 0.905 bbl soda Ash 0.5 ppb AQUAGEL 15 - 20 ppb caustic soda 0.1 ppb (8.5 — 9.0 pH) BARAZAN D+ as needed BAROID 41 as required for 8.8 — 9.2 ppg PAC-L /DEXTRID LT if required for <10 FL ALDACIDE G 0.1 ppb 11.5 At TD; PU 2-3 stands off bottom to avoid washing out the hole at TD, CBU, pump tandem sweeps and drop viscosity. 11.6 RIH to bottom, proceed to BROOH to HWDP • Pump at full drill rate (400-600 gpm), and maximize rotation. • Pull slowly, 5 — 10 ft / minute, adjust as dictated by hole conditions • Monitor well for any signs of packing off or losses. • Have the flowline jets hooked up and be ready to jet the flowline at the first sign of clay balling. • If flow rates are reduced to combat overloaded shakers/flowline, stop back reaming until parameters are restored. 11.7 TOOH and LD BHA 11.8 No open hole logging program planned. Page 15 Hilcorp 12.0 Run 9-5/8" Surface Casing 12.1 R/U and pull wearbushing. Prudhoe Bay West Z-220 SB Producer Drilling Procedure 12.2 R/U Weatherford 9-5/8" casing running equipment (CRT & Tongs) • Ensure 9-5/8" BTC x NC50, and VAM 21 x NC50 XO on rig floor and M/U to FOSV. • Use BOL 2000 thread compound. Dope pin end only w/ paint brush. • R/U of CRT if hole conditions require. • R/U a fill up tool to fill casing while running if the CRT is not used. • Ensure all casing has been drifted to 8.75" on the location prior to running. • Top 2,500' of casing 47# drift 8.525" • Actual depth to be dependent upon base of permafrost and stage tool • Be sure to count the total # of joints on the location before running. • Keep hole covered while R/U casing tools. • Record OD's, ID's, lengths, S/N's of all components w/ vendor & model info. 12.3 P/U shoe joint, visually verify no debris inside joint. 12.4 Continue M/U &thread lockins 120' shoe track iassembly consisting of: 9-5/8" Float Shoe 1 joint — 9-5/8" , 2 Centralizers 10' from each end w/ stop rings 1 joint — 9-5/8" , 1 Centralizer mid joint w/ stop ring 9-5/8" Float Collar w/ Stage Cementer Bypass Baffle 'Top Hat' 1 joint — 9-5/8" , 1 Centralizer mid joint with stop ring 9-5/8" HES Baffle Adaptor • Ensure bypass baffle is correctly installed on top of float collar. Bypass Baffle This end up. • Ensure proper operation of float equipment while picking up. • Ensure to record S/N's of all float equipment and stage tool components. Page 16 l Hileorp E-w m 12.5 Float equipment and Stage tool equipment drawings: Type H ES Cementer Part No. SO No - Closing Sleeve No. Shear Pins D f - Opening Sleeve No- Shear Pins ES Cementer S Depth T - Baffle Adapter (if used) iD Depth — Bypass or Shut-off Baffle ID Depth — Float Dollar Depth Float Shoe Depth Hole TD "Reference Casing Sales Manuel &Bckm 5 Page 17 —A 0%wall Length Min. ID Altar Dolloul C Max. Tod Oa D Opening Seek 1D E Closing Seat ID Plug Set Part No. SO No. Closing Plug DD Opening Plug DD OD Shuk- ff Prug OD Bypass Plug (if used) ❑D Prudhoe Bay West Z-220 SB Producer Drilling Procedure Hikorp ES-11 Running Order ES -II Cementer Shut Off Plug BaftleAdapter 15 By -Pass Plug By Pass Baffle Float Collar Float Shoe Hilcorp E �w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 12.6 Continue running 9-5/8" surface casing • Fill casing while running using fill up line on rig floor. • Use BOL 2000 thread compound. Dope pin end only w/ paint brush. • Centralization: • Bowsprin2 Centralizers only • 1 centralizer every joint to — 1000' MD from shoe • 1 centralizer every 2 joints to—2,000' above shoe (Top of Lowest Ugnu) • Verify depth of lowest Ugnu water sand for isolation with Geologist • Utilize a collar clamp until weight is sufficient to keep slips set properly. • Break circulation prior to reaching the base of the permafrost if casing run indicates poor hole conditions. • Any packing off while running casing should be treated as a major problem. It is preferable to POH with casing and condition hole than to risk not getting cement returns to surface. 12.7 Install the Halliburton Type H ES -II Stage tool so that it is positioned at least 100' TVD below the permafrost (— 2,500' MD, actual depth based upon base of permafrost) • Install centralizers over couplings on 5 joints below and 5 joints above stage tool. • Do not place tongs on ES cementer, this can cause damaged to the tool. • Ensure tool is pinned with 6 opening shear pins. This will allow the tool to open at 3300 psi. 9-5/8" 47# L-80 VAM21 Make -Up Torques: Casing OD Minimum Optimum Maximum 9-5/8" 28,400 ft-lbs 31,550 ft-lbs 34,650 ft-lbs 9-5/8" 40# L-80 BTC MUT: Casing OD Minimum I Optimum I Maximum 9-5/8" To mark on pipe. Keep track of averages and investigate anomalies. Page 18 Prudhoe Bay West Z-220 SB Producer Drilling Procedure Connection ifAA1921 OD n 9 5f8 Weight 61t 47A0 Wall Thickness in. 0.472 Grade Leo Option Rear Drfftigpe API Dnit DriRvalue • Nominal 01) in in 8.525 0.025 Normal I D R 8.881 NombW Cross Section Area spin_ 13.572 Grade Type API 5CT Min. Yield Stength ksi 80 Max. Yneld Strengih ksi 95 Min. UlfinaAH Tensile Strength ksi 95 Mininwm Mil Thickness CONMECTLON PROPERTIES Connection Type 87.5 PjEgtdaF Connection OD (From) in 10.420 Connection ID (noro) in 8.852 Makearp Loss in 5.378 Coupling Length in 12.7516 Critical Cross Seen sgin. 13.572 Tension Effiriency % of pipe 100 Compression Efficiency Of pipe 100 Compression Efficiency w ilh ISCUAPI Spub6ility % of pipe 101D InGemal Pressure Efficiency of pipe 100 er E3mnal Pressure Efficiency CONNECT" Tensile Yield Strength % of pipe Idh 11t0 1086 Compression Resistance kIh 1086 CompressionHi6i ISOfAPI SeabbWy kih 1085 Inbernal Yield Pressrre psi sm Exbmnal Pressure Remit p psi 4790 Max. Stuctural Bending 'ACID Ft 38 Max Bending with ISOJAPI Sealahility '11901t 27 Max. load on Coupling Face FIELDr Min. Make-up inrque kIh ft.Ih 654 28408 Opti. Make-up inrque ft.lh 315M Max Malre-uptorque ft.Ih 346W Max. Torque with Sealahility ft.Ih 34M Field Liver MAX ft.Ih NA Page 19 Hileorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 12.8 Continue running 9-5/8" surface casing • Centralizers: 1 centralizer every 3rd ioint to 200' from surface • Fill casing while running using fill up line on rig floor. • Use BOL 2000 thread compound. Dope pin end only w/ paint brush. • Centralization: o 1 centralizer every 2 joints to base of conductor 12.9 The last 2,500' of 9-5/8" will be 47#, from 2,500' to Surface • Actual length of 47# may change due to depth of permafrost as drilled • Ensure drifted to 8.525" 12.10 Watch displacement carefully and avoid surging the hole. Slow down running speed if necessary. 12.11 Slow in and out of slips. 12.12 P/U landing joint and M/U to casing string. Position the casing shoe +/- 10' from TD. Strap the landing joint prior to the casing job and mark the joint at (1) ft intervals to use as a reference when getting the casing on depth. 12.13 Lower casing to setting depth. Confirm measurements. 12.14 Have slips staged in cellar, along with necessary equipment for the operation. 12.15 Circulate and condition mud through CRT. Reduce YP to < 20 to help ensure success of cement job. Ensure adequate amounts of cold M/U water are available to achieve this. If possible reciprocate casing string while conditioning mud. Page 20 Hileorp E-w m 13.0 Cement 9-5/81' Surface Casing Prudhoe Bay West Z-220 SB Producer Drilling Procedure 13.1 Hold a pre job safety meeting over the upcoming cement operations. Make room in pits for volume gained during cement job. Ensure adequate cement displacement volume available as well. Ensure mud & water can be delivered to the cementing unit at acceptable rates. • How to handle cement returns at surface. Ensure vac trucks are on standby and ready to assist. • Which pumps will be utilized for displacement, and how fluid will be fed to displacement PUMP. • Ensure adequate amounts of water for mix fluid is heated and available in the water tanks. • Positions and expectations of personnel involved with the cementing operation. i. Extra hands in the pits to strap during the cement job to identify any losses • Review test reports and ensure pump times are acceptable. • Conduct visual inspection of all hard lines and connections used to route slurry to rig floor. 13.2 Document efficiency of all possible displacement pumps prior to cement job. 13.3 Flush through cement pump and treating iron from pump to rig floor to the shakers. This will help ensure any debris left in the cement pump or treating iron will not be pumped downhole. 13.4 RAJ cement line (if not already done so). Company Rep to witness loading of the top and bottom plugs to ensure done in correct order. 13.5 Fill surface cement lines with water and pressure test. 13.6 Pump remaining 60 bbls 10.5 ppg tuned spacer. 13.7 Drop bottom plug (flexible bypass plug) — HEC rep to witness. Mix and pump cement per below calculations for the I' stage, confirm actual cement volumes with cementer after TD is reached. 13.8 Cement volume based on annular volume + 30% open hole excess. Job will consist of lead & tail, TOC brought to stage tool. Estimated 1st Stage Total Cement Volume: Section Calculation Vol (bbl) Vol (ft3) Vol (sks) 12-1/4" OH x 9-5/8" Casing (6,124'-1,000'-2,500') x 0.0558 bpf x 1.3 190.4 1068.1 J Total Lead 190.4 1068.1 454.5 12-1/4" OH x 9-5/8" Casing 1000' x 0.0558 bpf x 1.3 = 72.5 406.7 M 9-5/8" Shoetrack 120' x 0.0758 bpf = 9.1 51.1 Total Tail 81.6 457.8 394.6 Page 21 Hilcorp E �w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure Cement Slurry Design (1st Stage Cement Job): Lead Slurry Tail Slurry System EconoCem HalCem Density 12.0 lb/gal 15.8 lb/gal Yield 2.35 ft3/sk 1.16 ft3/sk Mix Water 13.92 gal/sk 4.98 gal/sk 13.8 Attempt to reciprocate casing during cement pumping if hole conditions allow. Watch reciprocation PU and SO weights, if the hole gets "sticky", cease pipe reciprocation and continue with the cement job. 13.9 After pumping cement, drop top plug (Shutoff plug) and displace cement with spud mud out of mud pits, spotting water across the HEC stage cementer. • Ensure volumes pumped and volumes returned are documented and constant communication between mud pits, HEC Rep and HES Cementers during the entire job. 13.10 Ensure rig pump is used to displace cement. Displacement calculations have proven to be very accurate using 0.0625 bps (5" liners) for the Quattro pump output. To operate the stage tool hydraulically, the plug must be bumped. 13.11 Displacement calculation: 2500' x 0.0732 bpf + (6,124'-120'-2500') x .0758 bpf = 183 bbl + 265.6 bbl = 448.6 bbls %/ 80 bbls of tuned spacer to be left behind stage tool for preventing of contamination of cement in the annulus 13.12 Monitor returns closely while displacing cement. Adjust pump rate if losses are seen at any point during the job. Be prepared to pump out fluid from cellar. Have black water available to contaminate any cement seen at surface. 13.13 If plug is not bumped at calculated strokes, double check volumes and calculations. Over displace by no more than 50% of shoe track volume, ±4.5 bbls before consulting with Drilling Engineer. 13.14 If plug is not bumped, consult with Drilling Engineer. Ensure the free fall stage tool opening plug is available if needed. This is the back-up option to open the stage tool if the plugs are not bumped. 13.15 Bump the plug with 500 psi over displacement pressure. Bleed off pressure and confirm floats are holding. If floats do not hold, pressure up string to final circulating pressure and hold until cement is set. Monitor pressure build up and do not let it exceed 500 psi above final circulating pressure if pressure must be held, this is to ensure the stage tool is not prematurely opened. Page 22 Hileorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 13.16 Increase pressure to 3,300 psi to open circulating ports in stage collar. Slightly higher pressure may be necessary if TOC is above the stage tool. CBU and record any spacer or cement returns to surface and volume pumped to see the returns. Circulate until YP < 20 again in preparation for the 2nd stage of the cement job. 13.17 Be prepared for cement returns to surface. Dump cement returns in the cellar or open the shaker bypass line to the cuttings tank. Have black water available and vac trucks ready to assist. Ensure to flush out any rig components, hard lines and BOP stack that may have come in contact with the cement. Page 23 Hileorp E-w m Second Stage Surface Cement Job: Prudhoe Bay West Z-220 SB Producer Drilling Procedure 13.18 Prepare for the 2nd stage as necessary. Circulate until first stage reaches sufficient compressive strength. Try to maintain flow rate through stage tool until 2nd stage is ready. Hold pre job safety meeting. • Past wells have seen pressure increase while circulating through stage tool after reduced rate 13.19 HEC representative to witness the loading of the ES cementer closing plug in the cementing head. 13.20 Fill surface lines with water and pressure test. 13.21 Pump remaining 60 bbls 10.5 ppg tuned spacer. 13.22 Mix and pump cmt per below recipe for the 2nd stage. 13.23 Cement volume based on annular volume + open hole excess (300% for lead and 100% for tail). Job will consist of lead & tail, TOC brought to surface. PBU Z pad has a history of washout % that exceeds the standard 200%, to mitigate the risk we will pump 300% excess for lead Cement will continue to be pumped until clean spacer is observed at surface. Estimated 2nd Stage Total Cement Volume: Section Calculation Vol (bbl) Vol (ft3) Vol (sks) 20" Cond x 9-5/8" Casing 110' x 0.26 bpf 28.6 160.4 J 12-1/4" OH x 9-5/8" Casing (2000' - 110) x .0558x 4 421.8 2366.3 Total Lead 450.4 pr 2526.7 877.3 12-1/4" OH x 9-5/8" Casing (2500- 2000' x .0558 bpf x 2 55.8 313.0 ~ Total Tail 55.8 313.0 267.6 Cement Slurry Design (2nd stage cement job): Lead Slurry Tail Slurry System Arctic Cem HalCem Density 10.7 lb/gal 15.8 lb/gal Yield 2.88 ft3/sk 1.17 ft3/sk Mixed Water 22.02 gal/sk 5.08 gal/sk Page 24 r Hileorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 13.24 Continue pumping lead until uncontaminated spacer is seen at surface, then switch to tail. 13.25 After pumping cement, drop ES Cementer closing plug and displace cement with spud mud out of mud pits. 13.26 Displacement calculation: 2500' x 0.0732 bpf = 183 bbls mud 13.27 Monitor returns closely while displacing cement. Adjust pump rate if necessary. Wellhead side outlet valve in cellar can be opened to take returns to cellar if required. Be prepared to pump out fluid from cellar. Have black water available to retard setting of cement. 13.28 Decide ahead of time what will be done with cement returns once they are at surface. We should circulate approximately 100 - 150 bbls of cement slurry to surface. 13.29 Land closing plug on stage collar and pressure up to 1,000 — 1,500 psi to ensure stage tool closes. Follow instructions of Halliburton personnel. Bleed off pressure and check to ensure stage tool has closed. Slips will be set as per plan to allow full annulus for returns during surface cement job. Set slips. 13.30 Make initial cut on 9-5/8" final joint. L/D cut joint. Make final cut on 9-5/8". Dress off stump. Install 9-5/8" wellhead. If transition nipple is welded on, allow to cool as per schedule. Ensure to report the following on wellez: • Pre flush type, volume (bbls) & weight (ppg) Cement slurry type, lead or tail, volume & weight • Pump rate while mixing, bpm, note any shutdown during mixing operations with a duration • Pump rate while displacing, note whether displacement by pump truck or mud pumps, weight & type of displacing fluid • Note if casing is reciprocated or rotated during the job Calculated volume of displacement, actual displacement volume, whether plug bumped & bump pressure, do floats hold • Percent mud returns during job, if intermittent note timing during pumping of job. Final circulating pressure Note if pre flush or cement returns at surface & volume Note time cement in place • Note calculated top of cement • Add any comments which would describe the success or problems during the cement job Send final "As -Run" casing tally & casing and cement report to ien el(a�hilcorp.com and sgph.lastufkakhilcorp.com This will be included with the EOW documentation that goes to the AOGCC. Page 25 Hileorp E-w m 14.0 ND Diverter, NU BOPS, & Test Prudhoe Bay West Z-220 SB Producer Drilling Procedure 14.1 Give AOGCC 24hr notice of BOPE test, for test witness. 14.2 ND the diverter T, knife gate, diverter line & NU I I" x 13-5/8" 5M casing spool. 14.3 NU 13-5/8" x 5M BOP as follows: • BOP configuration from top down: 13-5/8" x 5M annular / 13-5/8" x 5M double gate / 13- 5/8" x 5M mud cross / 13-5/8" x 5M single gate • Double gate ram should be dressed with 2-7/8" x 5-1/2" VBRs in top cavity, blind ram in bottom cavity. • Single ram can be dressed with 2-7/8" x 5-1/2" VBRs or 5" solid body rams • NU bell nipple, install flowline. • Install (1) manual valve & HCR valve on kill side of mud cross. (Manual valve closest to mud cross). • Install (1) manual valve on choke side of mud cross. Install an HRC outside of the manual valve. 14.4 RU MPD RCD and related equipment 14.5 Run 5" BOP test plug 14.6 Test BOP to 250/3,000 psi for 515 min. Test annular to 250/2,500 psi for 515 min. • Test with 5" test joint and test VBR's with 3-1/2" test joint • Confirm test pressures with PTD • Ensure to monitor side outlet valves and annulus valve pressure gauges to ensure no pressure is trapped underneath test plug • Once BOPE test is complete, send a copy of the test report to town engineer and drilling tech 14.7 RD BOP test equipment 14.8 Dump and clean mud pits, send spud mud to G&I pad for injection. 14.9 Mix 8.9 ppg Baradrill-N fluid for production hole. 14.10 Set wearbushing in wellhead. 14.11 If needed, rack back as much 5" DP in derrick as possible to be used while drilling the hole section. 14.12 Ensure 5" liners in mud pumps. Page 26 Hilcorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure Drill 8-1/2" Hole Section MU 8-1/2" Cleanout BHA (Milltooth Bit & 1.22' PDM) TIH w/ 8-1/2" cleanout BHA to stage tool. Note depth TOC tagged on AM report. Drill out stage tool. TIH to TOC above the baffle adapter. Note depth TOC tagged on morning report. 15.4 RU and test casing to 2,500 psi / 30 min. Ensure to record volume / pressure (every 1/4 bbl) and plot on FIT graph. AOGCC reg is 50% of burst = 5,750 / 2 = —2,875 psi, but max test pressure on the well is 2,500 psi as per AOGCC. Document incremental volume pumped (and subsequent pressure) and volume returned. Ensure rams are used to test casing as per AOGCC Industry Guidance Bulletin 17-001. 15.5 Drill out shoe track and 20' of new formation. 15.6 CBU and condition mud for FIT. 15.7 Conduct FIT to 12.0 ppg EMW. Chart Test. Ensure test is recorded on same chart as casing test. Document incremental volume pumped (and subsequent pressure) and volume returned. Submit casing test and FIT digital data to AOGCC. 15.8 POOH and LD cleanout BHA 15.9 PU 8-1/2" directional BHA. • Ensure BHA components have been inspected previously. • Drift and caliper all components before MU. Visually verify no debris inside components that cannot be drifted. • Ensure TF offset is measured accurately and entered correctly into the MWD software. • Ensure MWD is RU and operational. • Have DD run hydraulics calculations on site to ensure optimum nozzle sizing. Hydraulics calculations and recommended TFA is attached below. • Drill string will be 5" 19.5# S-135 NC50. • Run a ported float in the production hole section. Schrader Bluff Bit Jetting Guidelines Formation Jetting TFA NB 6 x 14 0.902 OA 6 x 13 0.778 OB 6 x 13 0.778 Page 27 Hileorp E-w m 15.10 8-1/2" hole section mud program summary: Prudhoe Bay West Z-220 SB Producer Drilling Procedure • Density: Weighting material to be used for the hole section will be calcium carbonate. Additional calcium carbonate will be on location to weight up the active system (1) ppg above highest anticipated MW. • Solids Concentration: It is imperative that the solids concentration be kept low while drilling the production hole section. Keep the shaker screen size optimized and fluid running to near the end of the shakers. It is okay if the shakers run slightly wet to ensure we are running the finest screens possible. • Rheology: Keep viscosifier additions to an absolute minimum (N-VIS). Data suggests excessive viscosifier concentrations can decrease return permeability. Do not pump high vis sweeps, instead use tandem sweeps. Ensure 6 rpm is > 8.5 (hole diameter) sufficient hole cleaning • Run the centrifuge continuously while drilling the production hole, this will help with solids removal. • Dump and dilute as necessary to keep drilled solids to an absolute minimum. • MD Totco PVT will be used throughout the drilling and completion phase. Remote monitoring stations will be available at the driller's console, Co Man office, & Toolpusher office. System Type: 8.9 — 9.5 ppg Baradrill-N drilling fluid Properties: LSYP MBT HPH Hardness Interval Density PV YP Total Solids T Production 8.9-9.5 15-25 - ALAP 15 - 30 4-6 <10% <8 <11.0 <100 System Formulation: Product Concentration Water 0.955 bbl KCL 11 ppb KOH 0.1 ppb N-VIS 1.0 —1.5 ppb DEXTRID LT 5 ppb BARACARB 5 4 ppb BARACARB 25 4 ppb BARACARB 50 2 ppb BARACOR 700 1.0 ppb BARASCAV D 0.5 ppb X-CIDE 207 0.015 ppb Page 28 Hileorp E �w m 15.11 TIH with 8-1/2" directional assembly to bottom 15.12 Install MPD RCD 15.13 Displace wellbore to 9.2 ppg Baradrill-N drilling fluid • Density may change based upon TD of surface hole section Prudhoe Bay West Z-220 SB Producer Drilling Procedure 15.14 Begin drilling 8-1/2" hole section, on -bottom staging technique: • Tag bottom and begin drilling with 100 - 120 rpms at bit. Allow WOB to stabilize at 5-8K. • Slowly begin bringing up rpms, monitoring stick slip and BHA vibrations • If BHA begins to show excessive vibrations / whirl / stick slip, it may be necessary to PU off bottom and restart on bottom staging technique. If stick slip continues, consider adding 0.5% lubes 15.14 Drill 8-1/2" hole section to section TD per Geologist and Drilling Engineer. • Flow Rate: 350-550 GPM, target min. AV's 200 ft/min, 385 GPM • RPM:120+ • Ensure shaker screens are set up to handle this flowrate. Ensure shakers are running slightly wet to maximize solids removal efficiency. Check for holes in screens on every connection. • Keep pipe movement with pumps off to slow speeds, to keep surge and swab pressures low • Take MWD surveys every stand, can be taken more frequently if deemed necessary, ex: concretion deflection • Monitor Torque and Drag with pumps on every 5 stands • Monitor ECD, pump pressure & hookload trends for hole cleaning indication • Good drilling and tripping practices are vital for avoidance of differential sticking. Make every effort to keep the drill string moving whenever possible and avoid stopping with the BHA across the sand for any extended period of time. • Use ADR to stay in section. Reservoir plan is to stay in OBd sand. • Limit maximum instantaneous ROP to < 250 FPH. The sands will drill faster than this, but when concretions are hit when drilling this fast, cutter damage can occur. • Target ROP is as fast as we can clean the hole without having to backream connections • Schrader Bluff OBd Concretions: 4-6% Historically • MPD will be utilized to monitor pressure build up on connections. • 8-1/2" Lateral A/C, CF < 1.0: • Highland St No 1: has a Clearance factor of < 1.0. Highland St No 1 (PTD: 76-17) was an exploration well drilling in 1976, and was permanently plugged and abandoned in 1997. The only risk of contact with this well is damage to the bit. 15.15 Reference: Halliburton has a procedure for Schrader OH sidetracks based on lessons learned and best practices. Ensure the DD is referencing their procedure. • Patience is key! Getting kicked off too quickly might have been the cause of failed liner runs on past wells. Page 29 Hileorp E �w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure • If a known fault is coming up, put a slight "kick-off ramp" in wellbore ahead of the fault so we have a nice place to low side. • Attempt to lowside in a fast drilling interval where the wellbore is headed up. • Orient TF to low side and dig a trough with high flowrates for the first 30 feet, working string back and forth. Trough for approximately 30 minutes. • Time drill at 4 to 6 feet per hour with high flow rates. Gradually increase ROP as the openhole sidetrack is achieved. 15.16 At TD, CBU at least 4 times at 200 ft/min AV (385+ GPM) and rotation (120+ RPM). Pump tandem sweeps if needed • Monitor BU for increase in cuttings, cuttings in laterals come back in waves and not a consistent stream, circulate more if necessary • If seepage losses are seen while drilling, consider reducing MW at TD 15.17 Mix and pump 40 bbl 10 ppb SAPP pill. Lineup to a closed loop system and circulate three SAP pills with 50 bbl in between. Displace out SAP pills. Monitor shakers for returns of mud filter cake and calcium carbonate. Circulate the well clean. Losses during the cleanup of the wellbore are a good indication that the mud filter cake is being removed, including an increase in the loss rate. 15.18 Displace 1.5 OH + liner volume with viscosified brine. • Proposed brine blend (same as used on M-16, aiming for an 8 on the 6 RPM reading) - KCI: 7.1ppb for 2% NaCl: 60.9ppg for 9.4ppg Lotorq: 1.5% Lube 776: 1.5% Soda Ash: as needed for 9.5pH Busan 1060: 0.42ppb Flo-Vis Plus: 1.25ppb • Monitor well for loss rate and contact Drilling Engineer and/or Ops Engineer if further discussion needed prior to BROOH. 15.15 Monitor the returned fluids carefully while displacing to brine. 15.19 BROOH with the drilling assembly to the 9-5/8" casing shoe • Circulate at full drill rate (less if losses are seen, 350 GPM minimum). • Rotate at maximum RPM that can be sustained. Pulling speed 5 — 10 min/stand (slip to slip time, not including connections), adjust as dictated by hole conditions Page 30 Hilcorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure If backreaming operations are commenced, continue backreaming to the shoe 15.20 If abnormal pressure has been observed in the lateral, utilize MPD to close on connections while BROOH. 15.21 CBU minimum two times at 9-5/8" shoe and clean casing with high vis sweeps. 15.22 Monitor well for flow/pressure build up with MPD. Increase fluid weight if necessary. • Wellbore breathing has been seen on past MPU SB wells. Perform extended flow checks to determine if well is breathing, treat all flow as an influx until proven otherwise • If necessary, increase MW at shoe for any higher than expected pressure seen • Ensure fluid coming out of hole has passed a PST at the possum belly 15.23 POOH and LD BHA. 15.24 Continue to POOH and stand back BHA if possible. Rabbit DP on TOOH, ensure rabbit diameter is sufficient for future ball drops. • Only LWD open hole logs are planned for the hole section (GR + Res). There will not be any additional logging runs conducted. Page 31 Hileorp E-w m 16.0 Run 6-5/8" Liner Prudhoe Bay West Z-220 SB Producer Drilling Procedure 16.1 Well control preparedness: In the event of an influx of formation fluids while running the 6- 5/8" liner, the following well control response procedure will be followed: • P/U & M/U the 5" safety joint (with 6-5/8" crossover installed on bottom, TIW valve in open position on top, 6-5/8" handling joint above TIW). This joint shall be fully M/U and available prior to running the first joint of 6-5/8" liner. • Slack off and with 5" DP across the BOP, shut in ram or annular on 5" DP. Close TIW. • Proceed with well kill operations. 16.2 R/U 6-5/8" liner running equipment. • Ensure 6-5/8" 20# H563 x NC50 crossover is on rig floor and M/U to FOSV. • Ensure all casing has been drifted on the deck prior to running. • Be sure to count the total # of joints on the deck before running. • Keep hole covered while R/U casing tools. • Record OD's, ID's, lengths, S/N's of all components w/ vendor & model info. 16.3 Run 6-5/8" slotted liner • Use API Modified or "Best O Life 2000 AG" thread compound. Dope pin end only w/ paint brush. Wipe off excess. Thread compound can plug the screens • Utilize a collar clamp until weight is sufficient to keep slips set properly. • Use lift nubbins and stabbing guides for the liner run. • Install joints as per the Running Order (From Completion Engineer post TD). • If liner length exceeds surface casing length, ensure centralizers are placed 1/jt for each joint outside of the surface shoe. • Obtain up and down weights of the liner before entering open hole. Record rotating torque at 10 and 20 rpm 6-5/8" 20 # H563 Torque - ftlbs OD Minimum Optimum Maximum Yield Torque 6-5/8 5900 7100 10300 36000 Page 32 Hilc2TF.n W Compmy For the latest performance data, always visit our wehsite: www.tenaris.com Wedge 5639) Prudhoe Bay West Z-220 SB Producer Drilling Procedure :1110812018 Outside Diameter 6.625 in. Min. Wall 87.5% } Thickness i') Grade L80 Type 1 Wall Thickness 0.288 in. Conn ectlan OD REGULAR Option COUPLING PIPE SGUY Body: Red 1st Band: Red Grade L80 Type V Drift API Standard 1st Band: Brown 2nd Band: 2nd Band: - Brawn Type Casing 3rd Band: - 3rd Band: - 41h Band - PIPE BODY DATA GEOMETRY Nominal OD 6.625 in. Nominal Weight 20.00 IbsM Drift 5.924 in. Nominal I❑ 6.049 in. wall Thickness 0.208 in. Plain End Weight 19.51 lbs& OD Tolaranw API PERFORMANCE Body Yield Strength 459 0000 the Internal Yield 6090 psi SMYS 800o0 psi Collapse 3470 psi CONNECTION DATA GEOMETRY Connectlon DID 7.390 in. Coupling Length 9.25 in. Connection 10 5.999 in. Make-up Lass 4.050 in. Threads per in 3.29 Connection OD Option REGULAR PERFORMANCE Tenslon EfriGency 95.7 % Joint Yield Strength 439.263 x190Q Internal Pressure Capaclty 6090.000 psi IDS Compression Effcdency 100.0 % Compression Strength 459.000 x1000 Max. Allowable Bending 52.6'1100 R Ibs External Pressure Capacity 3470.000 psi Coupling Face Load 31BODO Ibs MAKE-UP TORQUES Mdnlmum 5900 ft-Ibs Optimum 7109 Robs Maximum 10300 ftaba OPERATION LIMIT TORQUES Operating Torque 31000 ft-Ibs Yield Torque 360H ft-lbs BUCK -ON Minimum 10000 It-Ibs Maximum 11300 R-Ibs Notes This connection is fully interchangeable with: Wedge 5630 - 6.625 in. - 24 1281 32 Ibslft Connections with Dopeless@ Technology are fully compatible with the same connection in its Standard version Page 33 Hilcorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 16.6. Ensure to run enough liner to provide for sufficient overlap inside 9-5/8" casing for gas lift completion. Tentative liner set depth — 5,350' MD • Confirm set depth with completion engineer. • 3-5 joints of 7" will be ran under the liner hanger for the production packer. Confirm with completion engineer. 16.7. Ensure hanger/pkr will not be set in a 9-5/8" connection. • AOGCC regulations require a minimum 100' overlap between the inner and outer strings as per 20 AAC 25.030(d)(6). Do not place liner hanger/packer across 9-5/8" connection. 16.8. Before picking up Baker SLZXP liner hanger / packer assy, count the # of joints on the pipe deck to make sure it coincides with the pipe tally. 16.9. M/U Baker SLZXP liner top packer to 6-5/8" liner. • Confirm with OE any 7" joints between liner top packer and 6-5/8" liner for GLM and packer setting depth 16.10. Note: PU, SO, ROT and torque of liner. Run liner in the hole one stand and pump through liner hanger to ensure a clear flow path exists. 16.11. RIH with liner no faster than 30 ft/min — this is to prevent buckling the liner and drill string and weight transfer to get liner to bottom with minimal rotation. Watch displacement carefully and avoid surging the hole or buckling the liner. Slow down running speed if necessary. • Ensure 5" DP/HWDP has been drifted • There is no inner string planned to be run, as opposed to previous wells. The DP should auto fill. Monitor FL and if filling is required due to losses/surging. • Use HWDP as needed for running liner 16.12. Slow in and out of slips. Ensure accurate slack off data is gathered during RIH. Record shoe depth + SO depth every stand. Record torque value if it becomes necessary to rotate the string to bottom. 16.13. Obtain up and down weights of the liner before entering open hole. Record rotating torque at 10, & 20 RPM. 16.14. If any open hole sidetracks have been drilled, monitor sidetrack depths during run in and ensure shoe enters correct hole. Page 34 Hileorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 16.15. TIH deeper than planned setting depth. Last motion of the liner should be up to ensure it is set in tension. 16.16. Rig up to pump down the work string with the rig pumps. 16.17. Break circulation. Begin circulating at —1 BPM and monitor pump pressures. Do not exceed 1,600 psi while circulating. Pusher tool is set at 2,100 psi with 5% shear screws but it should be discussed before exceeding 1,600 psi. Note all losses. Confirm all pressures with Baker 16.18. Prior to setting the hanger and packer, double check all pipe tallies and record amount of drill pipe left on location. Ensure all numbers coincide with proper setting depth of liner hanger. 16.19. Shut down pumps. Drop setting ball (ball seat now located in HRDE setting tool and not at the WIV) down the workstring and pump slowly (1-2 BPM). Slow pump before the ball seats. Do not allow ball to slam into ball seat. 16.20. Continue pressuring up to 2,700 psi to set the SLZXP liner hanger/packer. Hold for 5 minutes. Slack off 20K lbs on the SZXP liner hanger/packer to ensure the HRDE setting tool is in compression for release from the SLZXP liner hanger/packer. Continue pressuring up 4,500 psi to release the HRDE running tool. 16.21. Bleed DP pressure to 0 psi. Pick up to expose rotating dog sub and set down 50K without pulling sleeve packoff. Pick back up without pulling sleeve packoff, begin rotating at 10-20 RPM and set down 50K again. 16.22. PU to neutral weight, close BOP and test annulus to 1,500 psi for 10 minutes charted. 16.23. Bleed off pressure and open BOPE. Pickup to verify that the HRD setting tool has released. If packer did not test, rotating dog sub can be used to set packer. If running tool cannot be hydraulically released, apply LH torque to mechanically release the setting tool. 16.24. PU pulling running tool free of the packer and displace with at max rate to wash the liner top. Pump sweeps as needed. 16.25. POOH. LD and inspect running tools. If setting of liner hanger/packer proceeded as planned, LD DP on the TOOH. Note: Once running tool is LD, swap to the completion AFE. Page 35 Hileorp E �w m 17.0 Run 7" Tieback Prudhoe Bay West Z-220 SB Producer Drilling Procedure 17.1 RU and pull wear bushing. Get an accurate measurement of RKB to tubing hanger load shoulder to be used for tie -back space out calculation. 17.2 Notify AOGCC 24hrs prior to ram change 17.3 Install 7" solid body casing rams in the upper ram cavity. RU testing equipment. PT to 250/3,000 psi with 7" test joint. RD testing equipment. 17.4 RU 7" casing handling equipment. • Ensure XO to DP made up to FOSV and ready on rig floor. • Rig up computer torque monitoring service. • String should stay full while running, RU fill up line and check as appropriate. 17.5 PU 7" tieback seal assembly and set in rotary table. Ensure 7" seal assembly has (4) 1" holes above the first seal. These holes will be used to spot diesel freeze protect in the 9-5/8" x 7" annulus. 17.6 MU first joint of 7" to seal assy. 17.6 Run 7", 26#, L-80 HE Bear tieback to position seal assembly two joints above tieback sleeve. Record PU and SO weights. 17.7 Tieback to be Torque turned. 7119 , 26#, L-80, HE Bear Casing OD Torque (Min) Torque (Opt) 1 Torque (Max) 1 7" 11800 13110 14420 Page 36 Hilcorp E �w m 4) JFE Graph Signature war Min Shoulofr 7"ue wt. Toro: Prudhoe Bay West Z-220 SB Producer Drilling Procedure JFEBEAR Data Sheet «< Nov 30, 2021, sIZE WEIGHT GRADE 7.000 in 26 Ihlft L80 API Modified - Carbon 177.80 mm 38.69 kglrn Imperial Metric Pipe Body wall 0.362 in 9.19 mm Pipe ID 6.276 in 159.41 mm Drift Diameter 6.151 in 156.24 mm PIPE Pipe Cross Section 7.55 in2 4870 mm2 Collapse Pressure 5410 psi 37.30 MPa Internal Yield Pressure 7240 psi 49.92 MPa Pipe Body Yield Strength 604 kip 2686 kN Min 80000 psi 552 MPa Yield Strength MATERIAL Max 95000 psi 655 MPa Min Tensile Strength 95000 psi 655 MPa Min 11800 ft-lb 15999 Nm Torque Opt 13110 ft-lb 17775 Nm FIELD MAKE-UP TORQUE Max 14420 ft-lb 19551 Nm Min 918 ft-lb 1244 Nm APIModified- Carbon Shoulder Max 8522 ft-lb 11554 Nm Max Torque with Sealability 25400 ft-lb 34438 Nm 17.8 MU 7" to DP crossover. 17.9 MU stand of DP to string, and MU top drive. 17.10 Break circulation at 1 BPM and begin lowering string. 17.11 Note seal assembly entering tieback sleeve with a pressure increase, stop pumping and bleed off pressure. Leave standpipe bleed off valve open. 17.12 Continue lowering string and land out on no-go. Set down 5 — 1 OK and mark the pipe as "NO- GO DEPTH". Page 37 Hileorp E �w m 17.13 PU string & remove unnecessary 7" joints. Prudhoe Bay West Z-220 SB Producer Drilling Procedure 17.14 Space out with pups as needed to leave the no-go 1 ft above fully no-go position when the casing hanger is landed. Ensure one full joint is below the casing hanger. 17.15 PU and MU the 7" casing hanger. 17.16 Ensure circulation is possible through 7" string. 17.17 RU and circulation corrosion inhibited brine in the 9-5/8" x 7" annulus. 17.18 With seals stabbed into tieback sleeve, spot diesel freeze protection from 2,500' TVD to surface in 9-5/8" x 7" annulus by reverse circulating through the holes in the seal assembly. Ensure annular pressure are limited to prevent collapse of the 7" casing (verify collapse pressure of 7" tieback seal assembly). 17.19 SO and land hanger. Confirm hanger has seated properly in wellhead. Make note of actual weight on hanger on morning report. 17.20 Back out the landing joint. MU packoff running tool and install packoff on bottom of landing joint. Set casing hanger packoff and RILDS. PT void to 3,000 psi for 10 minutes. 17.21 RD casing running tools. 17.22 PT 9-5/8" x 7" annulus to 1,500 psi for 30 minutes charted. Page 38 Hileorp E-w m 18.0 Run Upper Completion/ Post Rig Work Prudhoe Bay West Z-220 SB Producer Drilling Procedure 18.1 RU to run 4-1/2", 12.6#, L-80 VAMTOP tubing. • Ensure wear bushing is pulled. • Ensure 4-1/2", L-80, 13.5#, VAMTOP x NC50 crossover is on rig floor and M/U to FOSV. • Ensure all tubing has been drifted in the pipe shed prior to running. • Be sure to count the total # of joints in the pipe shed before running. • Keep hole covered while RU casing tools. • Record OD's, ID's, lengths, SN's of all components with vendor & model info. • Monitor displacement from wellbore while RIH. 18.2 PU, MU and RIH with the following 4-1/2" completion jewelry (tally to be provided by Operations Engineer): • Tubing Jewelry to include: • I X Nipple • 4x GLM • I X Nipple • Ix Production Packer • I X Nipple • XXX joints, 4-1/2", 12.6#, L-80, VAMTOP Page 39 Hileorp E �w m 18.3 PU and MU the 4-1/2" tubing hanger. Prudhoe Bay West Z-220 SB Producer Drilling Procedure 18.4 Record PU and SO weights before landing hanger. Note PU and SO weights on tally along with band/clamp summary. 18.5 Land the tubing hanger and RILDS. Lay down the landing joint. 18.6 Install 4" HP BPV. ND BOP. Install the plug off tool. 18.7 NU the tubing head adapter and NU the tree. 18.8 PT the tubing hanger void to 50015,000 psi. PT the tree to 250/5,000 psi. 18.9 Pull the plug off tool and BPV. 18.10 Reverse circulate the well over to corrosion inhibited source water follow by 85 bbls of diesel freeze protect for both tubing and IA to 2,500' MD. 18.11 Drop the ball & rod and complete loading tubing and hydraulically set the packer as per Halliburton's setting procedure 18.12 Pressure up and test the tubing to 3500 psi for MIT-T with 1000 psi on the IA. Bleed off the tubing to 200012si. Test the IA to 3500 psi for MIT -IA. Bleed off the tubing and observe DCK shear. Confirm circulation in both directions thru the sheared valve. Record and notate all pressure tests (30 minutes) on chart. 18.13 Bleed both the IA and tubing to 0 psi. 18.14 Rig up jumper from IA to tubing to allow freeze protect to swap. 18.15 Prepare to hand over well to production. Ensure necessary forms filled out and well handed over with valve alignment as per operations personnel. 18.16 RDMO Innovation i. POST RIG WELL WORK 1. Slickline a. Change out GLV per GL ENGR b. Pull ball and rod and RHC 2. Well Tie in Page 40 MCorp Em.uc-T-K" 19.0 Innovation Rig Diverter Schematic MEAUUM 13.5.8' 5M Technology Sln( F3-51 Page 41 Prudhoe Bay West Z-220 SB Producer Drilling Procedure Mtrol Technology r58' 5M Control schnology DouNe Ram 1/8' Choke line ----�— %' aiverter Line Hileorp E-w m 20.0 Innovation Rig BOP Schematic Page 42 Prudhoe Bay West Z-220 SB Producer Drilling Procedure 13-518" 5M Control Technology Annular BOP ® 13-518" 5M Control Technology Double Ram �:■z z■=� 9-518" DBL D Seal 13-518- 5M Control Technology Single Ram 13-518" x 5M 11"x5M 2-1116" x 5M Casing Hanger 13-518" x 5M 5-22 13-518" NCM 9.518" 6TC Btrn x 1720-Casing 2-1116" x 5M 14,5" -4 SA Pin Top W1 Primary Seal " Casing Hilcorp Energy Company 21.0 Wellhead Schematic TUOIKC liaW.EP.. TC-IA EMS F. I-0-riC9 "L, 0 1�2 9T9G9u -MM ,. a' I'E "Er.TCP, ,l T..IS Ek i:•. �EL 4 _ r 1 \ j AL I L uar✓.'ER-C-JIB-- •C 3W , 11.-091-I11 T7.,4 fa'- f 1- 9LL rpFFLT. — 9 5-9 50 r w. 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To 1w, ,;EN 5 SLIM HOLE k' = - : k' - - : k' _ Ki VAIE OU CO11FIDUAI IA_ uEscHlr IUN .r+I t. ar[ wh [i xNse SURFACERELLHEAD 1ATfl1J ,FT-K Uc : rR I=ow.: n. wW°,r. �rbenowk vfr-TfA.^Wl ar ww[#l shweiF:. Tsnkn 51$ kT I� P OUEI Sa,wB,RnIx,S I Is.rrtr CASN PnRM+ SSn ry.i Rzkapn rj¢omj 110 7titi4k110 Ir{ILq&#rv_ kLT,I.LF-r4x�s4!- I I -5H k i..MC'hFG •� .r{-101 wri-0tIW[t+i}.s Ix•' •Nlues u•6[ I•+[w,wr[L �Y-nl�s aIW{iCTueIHG �PPPO,f OJr r �-LL Wf D[MIDN up Ix Ini[ w rw�a 1-1*.1 }.n1 bI k 4—p 1p, irrkk oF1 uc m r n mw[: r�FTa FD we DrsP nrT,ov Hr7 • ,m rss Page 43 CUOEC La'rW '"i'l DMI oo 153 3G3 Ip-n-17 1 e v IT 11,� I0 -25-17 11d rE: d T T9* E4 1 lie AT,rIS aWk�a h[i DM:O027?ao, MCorp Em.uc-md" 22.0 Days Vs Depth PBW Z-22D SB OBd Producer Days vs Depth a 2000 4606 5000 3 12000 oducer Prudhoe Bay West Z-220 SB Producer Drilling Procedure 14000 16000 19000 20D06 0 5 10 15 20 25 30 Days Page 44 Hilcorp 23.0 Formation Tops & Information TOP NAME LITHOLOGY EXPECTED MD TVD TVDSS FL LETI FT (F T) BPRF 2,102 1,647,0 -1765 5V1 Gas Hydrates 3,332 2,788.0 -2706 UG4 Gas/Heavy Oil 3,687 3,112.0 -3029 UG3 Heavy0il 4,045 3,464.0 -3381 Ugnu MB Heavy Oil 5,050 4,356.0 -4274 NA Top Schrader Bluff 5,379 4,550.0 -4468 OBC Schrader Bluff Oil 5,549 4,622.0 -4539 OBE (Heel) Schrader Bluff Oil 5,983 4,709.0 -4626 Page 45 Prudhoe Bay West Z-220 SB Producer Drilling Procedure EEL NORTHING I EASTING I pressure I Gradient 813 8.46 1227 8.46 1369 8.46 1524 8.46 1917 8.46 2002 8.46 2034 8.46 2072 8.46 MCorp EvC—md" Prudhoe Bay West Z-220 SB Producer Drilling Procedure PBU Orion/Borealis Z=Pad GENERALIZED GEOLOGICAL INFORMATION DEPTH TVUSS FORM LITH GEOL. DESCRIPTION COMMENTS D" jrancGuh To lee •r- 2W 600 1,000. 181301 2,000' Sagav M04' 32000, 3327' 3500, 3992' 4,000' 43701 4760' 4925' 4U Li ° o . .10 1' inirktolt SV1 UG4A I (I[-13) UG4 I UG3 UTice rtsaiidated coarse to medium sand and conglomerate with minor siltstone. Conglomerate wi some sand sections. Wood and carbonized wood throughout permatrost section. Base permafrost 1800' Conglomerate to 2400' with some clay, silt and sand. Interbedded silttolay and sandstone to TOP of Ugriu (K-15). 1. G4: Good thick coal seam 15 - 10' j at top of ugau. Ugnu: Predominantly sands with some interbedded clay .and coal streak Ug iu Sands UG1 _ — — Sandstone interbedded with mudstone aild snlne silts(one to 4370'. _. _ _ IIy�i;�rC,arllc�;� Isirsiinq. WO �k West Sak Sands (Schrader WestBIUff): tlydrocartan bearing - I WS1 LARGE GRAVELS AND BOULDERS: Z-103i Z-66 {2013j Tight hole 1260. Inadvertent sidetrack attempting to RIH and get around obstruction. Follow Surface Hole RP prac- tices for tight hale. Z-40 (20121 Running sand dunnij surface casing run, casing had to be pumped out of hole 2390-2312 MD for cleanout run. Second ruff wicasing ok. Z-24 (2012) pump 800 obis cernent wr'30 Ibis back to surface. G A 6 HYDRATES! 2000 - 2300' GHALLO V GAS CUT MUD SV3. SVI COMMON AS IN S-112 7DU8. POTENTIAL HYDRATE SHALLOW GAS PROBLEMS: *1- 2560-3994 TVD Z -tsj I�u I �;. ilyd1 .IL .. '�5r 5 '064 �150- e-1 ?S 120121. I#ydr:1to, 0&1 faca rki-KI iotCY+> vdintr �halcti 2794 SS 0114+ 3376 - SS CRETACEOUS OVER -PRE SSURE" Low probability of aver -pressure from pm- duced water injection in Ugrtu 1+14000 tvd), Hileorp E �w m 24.0 Anticipated Drilling Hazards Prudhoe Bay West Z-220 SB Producer Drilling Procedure 12-1/4" Hole Section: Lost Circulation Ensure adequate amounts of LCM are available. Monitor fluid volumes to detect any early signs of lost circulation. For minor seepage losses, consider adding small amounts of calcium carbonate. Gas Hydrates/Free Gas Gas hydrates have been seen on PBU Z Pad. They were reported between 1800' and 3140' TVD. MW has been chosen based upon successful trouble free penetrations of offset wells. • Be prepared for gas hydrates o Keep mud temperature as cool as possible, Target 60-70*F o Dump and dilute as necessary to maintain temp, utilize cold water on the rig as well as cold premade mud on trucks ready o Drill through hydrate sands and quickly as possible, do not backream. Remember that hydrate gas behaves differently from a gas sand. Additional fluid density will not prevent influx of gas hydrates, but can help control the breakout at surface. Once a gas hydrate has been disturbed the gas will come out of the hole. Drill through the hydrate section as quickly as possible while minimizing gas belching. Minimize circulation time while drilling through the hydrate zone. Excessive circulation will accelerate formation thawing which can increase the amount of hydrates released into the wellbore. Keep the mud circulation temperature as cold as possible. Weigh mud with both a pressurized and non -pressurized mud scale. The non -pressurized scale will reflect the actual mud cut weight. Isolate/dump contaminated fluid to remove hydrates from the system. Hole Cleaning: Maintain rheology of mud system. Sweep hole with high viscosity sweeps as necessary. Optimize solids control equipment to maintain density, sand content, and reduce the waste stream. Monitor ECD's to determine if additional circulation time is necessary. In a highly deviated wellbore, pipe rotation is critical for effective hole cleaning. Rotate at maximum RPM's when CBU, and keep pipe moving to avoid washing out a particular section of the hole. Ensure to clean the hole with rotation after slide intervals. Do not out drill our ability to clean the hole. Anti-Collison: There are no known wells with a clearance factory <1.0. Take directional surveys every stand, take additional surveys if necessary. Continuously monitor proximity to offset wellbores and record any close approaches on AM report. Well Specific A/C: • Highland St No 1: has a Clearance factor of < 1.0. Highland St No 1 (PTD: 76-17) was an exploration well drilling in 1976, and was permanently plugged and abandoned in 1997. The only risk of contact with this well is damage to the bit. Wellbore stability (Permafrost, running sands and gravel, conductor broaching): Page 47 Prudhoe Bay West Z-220 SB Producer Drilling Procedure Washouts in the permafrost can be severe if the string is left circulating across it for extended periods of time. Keep mud as cool as possible by taking on cold water and diluting often. High TOH and RIH speeds can aggravate fragile shale/coal formations due to the pressure variations between surge and swab. Bring the pumps on slowly after connections. Monitor conductor for any signs of broaching. Maintain mud parameters and increase MW to combat running sands and gravel formations. H2S: Treat every hole section as though it has the potential for 112S. PBU Z-pad has a history of H2S on wells in all reservoirs. Below are the most recent H2S values of monitored wells in the Shrader / Orion Pool. PBU Orion / Schrader 1-12S Monitored Well - Last H2S Test PPM Well SDatele PPM Well Date PPM Well Date PPM Well Date PPM] Well Date le ;Ppm L-201 8/10/21 80 L-202 7/16/21 40 L-203 5/16/21 38-1 L-204 5/3/21 1 300 L-205110/10/201 20 I L-250 4/2/19 24 W-200 7/7/21 1 36 W-201 5/15/21 40 11 W-202 7/6/21 25 1 6/14/21 30 1W-204 8/6/21 1 63 W-205 12/19/20 19 V-2021 7/29/21 I 30 II V-2031 7121/21 I 50 I V-204 8111121 60 I V-2051 8/10/21 I 275 V-207 8/6/21 1 82 1. The AOGCC will be notified within 24 hours if H2S is encountered in excess of 20 ppm during drilling operations. 2. The rig will have fully functioning automatic H2S detection equipment meeting the requirements of 20 AAC 25.066. 3. In the event H2S is detected, wellwork will be suspended and personnel evacuated until a detailed mitigation procedure can be developed. Page 48 Hilcorp E-w m 8-1/2" Hole Section: Prudhoe Bay West Z-220 SB Producer Drilling Procedure Hole Cleaning: Maintain rheology of mud system. Sweep hole with low-vis water sweeps. Ensure shakers are set up with appropriate screens to maximize solids removal efficiency. Run centrifuge continuously. Monitor ECDs to determine if additional circulation time is necessary. In a highly deviated wellbore, pipe rotation is critical for effective hole cleaning. Rotate at maximum RPMs when CBU, and keep pipe moving to avoid washing out a particular section of the wellbore. Ensure to clean the hole with rotation after slide intervals. Do not out drill our ability to clean the hole. Maintain circulation rate of > 300 gpm Lost Circulation: Ensure adequate amounts of LCM are available. Monitor fluid volumes to detect any early signs of lost circulation. For minor seepage losses, consider adding small amounts of calcium carbonate. Faulting: Crossing faults, known or unknown, can result in drilling into unstable formations that may impact future drilling and liner runs. Talk with Geologist to ensure all known faults are identified and prepared for accordingly. H2S: Treat every hole section as though it has the potential for H2S. PBU Z-pad has a history of 1-12S on wells in all reservoirs. Below are the most recent 1-12S values of monitored wells in the Shrader / Orion Pool. PBU Orion / Schrader H2S Monitored Well - Last H2S Test PPM Sample Sample Sample Sample Sample I Well Date PPM Well Date PPM Well Date PPM Well Date PPM Well Da PPM L-201 8/10/21 80 L-202 7/16/21 1 40 L-203 5/16/21 1 38IF L-204 5/3/21 300 L-205110/10/201 20 I L-250 4/2119 24 W-200 7/7/21 1 36 W-201 5/15/21 40 W-202 7/6/21 1 25 W-203 6/14/21 30 W-204� 8/6/21 63 W-205 12/19/20 19 V-2021 7/29/21 I 30 II V-2031 7121/21 I 50 V-204 8111121 62_jI V-205I 8/10/21 275 V-207I 8/6/21 I 82 1. The AOGCC will be notified within 24 hours if 112S is encountered in excess of 20 ppm during drilling operations. 2. The rig will have fully functioning automatic 1-12S detection equipment meeting the requirements of 20 AAC 25.066. 3. In the event 112S is detected, wellwork will be suspended and personnel evacuated until a detailed mitigation procedure can be developed. Page 49 Hileorp E �w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure Abnormal Pressures and Temperatures: Reservoir pressures are expected to be normal. Utilize MPD to mitigate any abnormal pressure seen. Anti -Collision Take directional surveys every stand, take additional surveys if necessary. Continuously monitor drilling parameters for signs of magnetic interference with another well. Reference A/C report in directional plan. Well Specific A/C: • Highland St No 1: has a Clearance factor of < 1.0. Highland St No 1 (PTD: 76-17) was an exploration well drilling in 1976, and was permanently plugged and abandoned in 1997. The only risk of contact with this well is damage to the bit. Page 50 Hileorp E-w m 25.0 Innovation Rig Layout Page 51 Prudhoe Bay West Z-220 SB Producer Drilling Procedure Hileorp E �w m 26.0 FIT Procedure Formation Integrity Test (FIT) and Leak -Off Test (LOT) Procedures Procedure for FIT: Prudhoe Bay West Z-220 SB Producer Drilling Procedure 1. Drill 20' of new formation below the casing shoe (this does not include rat hole below the shoe). 2. Circulate the hole to establish a uniform mud density throughout the system. P/U into the shoe. 3. Close the blowout preventer (ram or annular). 4. Pump down the drill stem at 1 /4 to 1 /2 bpm. 5. On a graph with the recent casing test already shown, plot the fluid pumped (volume or strokes) vs. drill pipe pressure until appropriate surface pressure is achieved for FIT at shoe. 6. Shut down at required surface pressure. Hold for a minimum 10 minutes or until the pressure stabilizes. Record time vs. pressure in 1-minute intervals. 7. Bleed the pressure off and record the fluid volume recovered. The pre -determined surface pressure for each formation integrity test is based on achieving an EMW at least 1.0 ppg higher than the estimated reservoir pressure, and allowing for an appropriate amount of kick tolerance in case well control measures are required. Where required, the LOT is performed in the same fashion as the formation integrity test. Instead of stopping at a pre -determined point, surface pressure is increased until the formation begins to take fluid; at this point the pressure will continue to rise, but at a slower rate. The system is shut in and pressure monitored as with an FIT. Ensure that casing test and subsequent FIT tests are recorded on the same chart. Document incremental volume pumped and returned during test. Page 52 Hilcorp Em.uc-T-K" 27.0 Innovation Rig Choke Manifold Schematic Page 53 Prudhoe Bay West Z-220 SB Producer Drilling Procedure Hilcorp E-w m Prudhoe Bay West Z-220 SB Producer Drilling Procedure 28.0 Casing Design R� Calculation & Casing Design Factors Hole Size 12-1I4' Hole Size 8-112" Hole Size DATE: 121212021 WELL: PBU Z-220 Design Criteria: Mud Density: 9.2 ppg Mud Density: 9.2 ppg Mud Density: Drilling Mode MASP: 1602 psi (see attached MASP determination & calculation) MASP: Production Mode MASP: 1602 psi {see attached MASP determination & calculation Collapse Calculation: Section Calculation 1 Normal gradient external stress (0.494 psilft) and the casing evacuated for the internal stress CalculationlSpecification Casing Section 1 2 3 4 Casing OD Top (MD) Tap (TVD) 9-518" 6-518" 0 6,124 0 4,710 Bottom (MD) 6,124 18.383 Bottom D 4,710 4,932 Length 6,124 12,259 Weight (ppO 40 20 Grade L-80 L-80 Connection RTC H563 Weight w/o Bouyancy Factor (lbs) 244.960 245,180 Tension at Top of Section (Ihs) 244,960 245,180 Min strength Tension (1000 Ibs) 916 459 Worst Case Safety Factor (Tension) 3.74 1.87 Collapse Pressure at bottom (Psi) 2,327 2,436 Collapse Resistance w10 tension Psi 3,090 3,470 Worst Case Safety Factor {Collapse) 1.33 1.42 MASP (psi) 1,602 1,602 Minimum Yield (psi) 5,750 6,090 Worst case safety factor (Burst) 3.59 3.80 Page 54 Hilcorp F:-,gy ('gym Puny. 29.0 8-1/2" Hole Section MASP Maximum Anticipated Surface Pressure Calculation 8-1/2" Hole Section Hilcarp PBU Z-220 Prudhoe Bay Unit MD TVD Planned Top: 6124 4710 Planned T0: 18393 4932 Anticipated Formations and Pressures: Prudhoe Bay West Z-220 SB Producer Drilling Procedure Formation TVD Est Pressure Oil/Gas/Wet PPG Grad Schrader Bluff OBd Sand 4,708 2072 Oil 8.46 0.440 Offset Well Mud Densities Well Sand MW range Top (TVD) Bottom (TVD) Z-210 SB 8.9 - 9.7 Surface 4488 Assumptions: 1. Field test data suggests the Fracture Gradient in the Schrader Bluff is btwn 11.5 and 15 ppg EMW. 2. Maximum planned mud density forthe 8-1/2" hole section is 9.5 ppg. 3. Calculations assume full evacuation of wellbore to gas Fracture Pressure at 9-S/8" shoe considering a full column of gas from shoe to surface: 4710 (ft) x 0.78(psi/ft)= 3674 3674 (psi) - [0.1(psi/ft)*4710(ft)I= 3203 psi MASP from pore pressure f complete evacuation of wellbore to gas from Schrader Bluff sandI 4710 (ft) x 0.440{psi/ft}= 2073 psi 2073(ps1) - 0.1(psi/ft)*4710(ft) F 1602 psi Summary: 1. MASP while drilling 8-1/2" production hole Is governed by pore pressure and evacuation of entire wellbore to gas at 0.1 psi/ft. Page 55 Prudhoe Bay West Z-220 SB Producer Drilling Procedure 30.0 Spider Plot (NAD 27) (Governmental Sections) Sec. 1 Sec- 6 z-11s Sec- 5 - [593) V-218 Z:30 v-x1s \ Z-224_BIIL rE \. I + v.122 z•ls t Z-22- ^ r I 1 I 1 O 1 I Z-22A I • Z•30A + a 1 I • l `• ` AbL28240 E 7 22.7`, AQL47450 Z-31 Sec S Sec- 12 . 1 1 I (596j r 11 o I 5 . V-115 1 i r• I r + G I r 1 n l I r + Z-19n G Z-328 i r I . z_11s c { tl I T-HYpRATE�.01 `1 4-32C /I_ t ' 9 i) r E r I 1 2-13 F} r}I ± 7 ' tt 1 `N , It6PAR[1F( STATE 07;11.12 + 1 r t Ir t{ t 7 1 ■ i o _ • 2. 13A' -- I r 8 � , I 11 I] + ff f1 1 IyZ-11q♦ 0 ', Y-161 i rr :-11. tZ 32 rr I� i Z-21 f r I C . `\ `\ \ ,,�Z-21A f+ r rr o 1 ' \ P U HOE 9AYI UNIT I ,' . � I +'.Z-au+ 11 rrl ,t' I'r U01%012E U011NU11E+ '� 't ,rn + I 1 1 Z-113 +11 1 I II Ij 0 Z-B9 i ,' pp° Z-pq/ 1 tt I I t 2-2Br + +R �• t t r °o I Sec. 18 f 1 Z-1r. I 1 • I f • r ° f Sec. 13 " ++ t Sec. 17 _ - 1 ! t .' l (599) rp r I ` 'N '-Y-14Bv' ,+V 1 l 1 `! 1 �I+! +ff I Zf fa'r ``♦ E t V 1+ III ff 1 it if +11 '!`f I �� 0 I ! ) r d ,'�`1atl1{III •� 1 Z-r5A � 1I • - II fr lrr l'III �yi� ��-~r��2-14 �' s AUL282fi2 •. AUL28245 `, Z-23sit t j -Z,) ,' YZ13n+' I+ r •�, 3 5 Y I I 1y l r l+ E� /! Z 1,001, I�' 1 1 �r • o Z '- P • - ��� , ' +,+1,1 1 )r I �';r- �- - o� - _ _. - - Legend Z.20 e � _ • - ` ! • t I 1 4 r- Z-23C7 !t'"� L-220 SHL Z-220 TPH ri'a`an 7-710 TPl f Z 220_BHL 1' t `� _ _ . Sec. 24 _ r ' - [601 ]' a x.1oa - - -• - _ _ _ F ^, '�� • Other Bottom Holes [BHQ w-27A 3 + Z-10x 1 I �tl r\`• Z 39 - - - Other Well Paths IZ-02A� ' • Oil and Gas unit Boundary 11t , ' f 1 r i_ 1 5+ • - a r I{ 1 rr Pad Footprint `1 t t r-3a , •HIGHLANMj I S t •, /� 1, / r1 1 E� V � Prudhoe Bay Unit I1IIn., 14-1.. 1.1 A Z-220 Well 0 1,200 2.400 ear obl4! llr4M2l W POg Feet Page 56 Hilcorp Energy C-My 31.0 Surface Plat (As Built) (NAD 27) Prudhoe Bay West Z-220 SB Producer Drilling Procedure a ■ ■ 32 A 00 ■ 30 29 210,L� 3 ■ 1021 - _. ",RAC. RD rj ■ ■ tT■C P-SMA 1Y-PAD... ■ ■ P-5m 2-PAD S � ■ ® 021 ti TTr ' I ■ 22 ti 11 ■ ■ � 1Z ■ ■ 7l f_ Ta ■ ■ 15 VICINITY MAP 14 ■ ■ %TS -• .. TB ■ 17 ■ SOOT I `P ,•• S� t7;' q ••••.:* • SURVEYOR'S CERTIFICATE q n1 ^' I HEREBT CERTIFY THAT I AM 16; 46 ..... ........... ...... PROPERIr REGISTERED AND LCENSED TO PkA TCE LANs SURyEYWc N! it 7 ` PAQ i i�TI�Lc MS THE gAS-RDILT RO-RESENTS A TATE OF ALASKA AP40 ASJ"EY M ■ • •.. ■IO1I Baf�l■� MATTE HY ME OR UNDER MY DIRECT $IIPERN° ATfD Tl1AT ALL 1 2O0 CORRECT A AHD OTTER DETAILS ARE CORRECT A$ OF OCTOBER 26, 2021 w " GRAPHIC SCALE I t6; I �i� o lm toa w5 ❑ �u} LEGEND [ RI FEET ) r� M Vrn+ - 200 n- NOTES. O AS-BULT CONDUCTOR I. AL/SKA STATE PLANE COORDINATES ARE ZONE 4. HAD 27. r EXISTING HELL CONDUCTOR 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL 90A)MENTS MON 2 AND MUTT 3 3. VERTICAL CONTROL IS BASED M 2 PAD MONLPACNTATION, 4, ELEVATIONS ARE BPX A(µ SEA LEVEL (W&L) DATIIAL 5. GEODETIC OA1UM IS NAO27, 0. PAD AVERAGE SCALE FACTOR IS D 9"211213. 7. DATES Or SURVEYt LUNE 28-30. AXY 1-2_ 201T B. REFERENCE F1EED 9DLYIS HSII -K PGS, 1-75; NSII-46 9. REFERENCE OAAVW-- FRB15 IYOZ 02. REY 00 RENAMED CONDUCTOR REM510N MAL S, SLOT SB k Z-105 THIS AS -PAT ORA1■Nf 6 A R V%* Of PREWOVS AS -BUILT ORAIMIGS FOR THE ABOVE LISTED C04DXt0R5. REkAMW COIQIICIORS ARE AS fOLLO■5 OLD COW MAIK li7 ECM RAVE SLOT SB 2-220 2-TO6 . LOCATED WITHIN PROTRACTED SEC, 19. T. 11 N_ R. 12 £_. UMIAT MERIDIAN. AI ASKA WELL A.S.P. PLANT GEODETIC GEODETIC IPOSITION(D.DD) CELLARj SECTION NO. COORDINATES COORDINATES POSITION(OMS) BOX ELEV. OFFSETS —22 Y- 5 959.100.12 N- 1,458.95 70'17'51.634" 70-2976761' . 4.295' FSL SST X- 599 B46.00 E- 1 874.11 149'11'29.155* 149.1914319' 2 832' FEL S6-4 4.295' FSL 2-221 Y- 5 959.10O.11 N- 1.429.03 70'17'51.630' 70.2976750' X- 599 875.92 E= 1 870-10 149'11'28.283" 149-1911897' 2 802' FEL • • ALGA - — Hilcvrp Alaska 77- G•r.. Tg071 rOr a+ Fell WOA Z-DAD AS -BUILT CONDUCTORS I• -'m RENAMED WELLS 1' 1 Page 57 Hilcorp Energy CnmMy 32.0 Offset Wells: TVD & MW Prudhoe Bay West Z-220 SB Producer Drilling Procedure 2-220 Offset Surface MW vs ND MW. pqg 8.4 8.6 8.8 9 9-2 9.4 9.6 9.8 10 10.2 10.4 0.0 1pD0-0 2000-0 Z-210 --o -Z-210 PB1 w 6 30D0.0 � 4DD0.0 5000-0 6000.0 Z-210 Z-210 PB1 MD ND MW MD ND MW 585 550.0 8.8 2173 1900.0 9 3832 2841.0 9.7 3957 2900.0 9 3832 2841.0 9 6958 5118.0 9.2 7000 5148.0 9.2 Page 58 Hilcorp North Slope, LLC Prudhoe Bay Z Plan: Z-220 Z-220 Plan: Z-220 wp08a Standard Proposal Report 01 December, 2021 HALLIBURTON Sperry Drilling Services Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wpO8a 14ALLIBURTORI Mperry Orimng Hilcorp North Slope, LL Calculation Method: Minimum Curvature Error System: ISCWSA Scan Method: Closest Approach 3D Error Surface: Ellipsoid Separation Warning Method: Error Ratio FORMATION TOP DETAILS TVDPath TVDssPath MDPath Formation 1736.60 1654.00 1955.87 SV5 1846.60 1764.00 2101.29 BPRF 2788.60 2706.00 3332.95 S V 1 3111.60 3029.00 3687.10 UG4 3463.60 3381.00 4044.80 UG3 4356.60 4274.00 5049.69 MB 4550.60 4468.00 5378.87 NA 4569.88 4487.28 5420.00 Fault (255' throw) 4621.60 4539.00rr� 5546.15 OBCR. CASING DETAILS TVD TVDSS MD Size Name 4709.80 4627.20 6124.00 9-5/8 9 5/8" x 12 1 /4" 4932.60 4850.00 18383.58 6-5/8 6 5/8" x 8 1 /2" 0 750 't61500 O O r ;2250 CL N 0 v3000 a> H3750 4500 SECTION DETAILS Sec MD Inc Azi TVD +N/-S +E/-W Dleg TFace VSect Target Annotation 1 26.50 0.00 0.00 26.50 0.00 0.00 0.00 0.00 0.00 2 275.00 0.00 0.00 275.00 0.00 0.00 0.00 0.00 0.00 Start Dir32/100' : 275' MD, 275'TVD 3 700.00 12.75 215.00 696.50 -38.58 -27.01 3.00 215.00 -42.68 Start Dir 42/100' : 700' MD, 696.5'TVD 4 1407.15 40.85 223.31 1321.55 -275.61 -234.65 4.00 11.51 -312.17 End Dir :1407.15' MD,1321.56 TVD 5 3123.72 40.85 223.31 2619.96 -1092.60 -1004.88 0.00 0.00 -1250.50 Start Dir 4.51/100' : 3123.72' MD, 2619.96'TVD 6 6024.07 90.00 50.00 4709.80 -631.63 -128.11 4.50 -171.19 -644.28 End Dir :6024.07' MD,4709.8'TVD 7 6124.07 90.00 50.00 4709.80 -567.35 -51.51 0.00 0.00 -567.68 Z-220 wp04 Heel Start Dir 3.21/100' : 6124.07' MD, 4709.8'TVD 8 6305.88 88.20 44.47 4712.65 -443.97 81.89 3.20 -108.02 -423.00 End Dir : 6305.88' MD, 4712.65' TVD 9 8217.81 88.20 44.47 4772.60 919.85 1420.50 0.00 0.00 1152.54 Z-220 wp03 CP1 Start Dir 3.06°/100':8217.81' MD,4772.6'TVD 10 8221.10 88.15 44.38 4772.70 922.20 1422.80 3.06 -123.84 1155.26 End Dir : 8221.1' MD, 4772.7' TVD 11 8401.81 88.15 44.38 4778.55 1051.29 1549.13 0.00 0.00 1304.32 Start Dir 2.832/100' : 8401.81' MD, 4778.557VD 12 9951.51 87.70 0.56 4837.60 2447.62 2126.77 2.83 -91.39 2779.74 Z-220 wp03 CP2 Start Dir 32/100' : 9951.51' MD, 4837.67VD 13 9986.33 88.74 0.55 4838.68 2482.42 2127.11 3.00 -0.29 2814.08 End Dir : 9986.33' MD, 4838.68' TVD 14 11306.41 88.74 0.55 4867.60 3802.12 2139.89 0.00 0.00 4115.95 Z-220 wp03 CP3 Start Dir 4.031/100' : 11306.41' MD, 4867.6'TVD 15 11487.32 96.02 0.05 4860.09 3982.75 2140.85 4.03 -3.93 4293.99 End Dir : 11487.32' MD, 4860.09' TVD 16 11940.28 96.02 0.05 4812.60 4433.22 2141.27 0.00 0.00 4737.70 Z-220 wp03 CP4 Start Dir 31/100' : 11940.28' MD, 4812.6'TVD 17 12152.37 89.78 1.31 4801.88 4644.91 2143.80 3.00 168.59 4946.61 End Dir : 12152.37' MD, 4801.88' TVD 18 13643.89 89.78 1.31 4807.60 6136.03 2177.90 0.00 0.00 6421.00 Z-220 wp03 CP5 Start Dir 32/100' : 13643.89' MD, 4807.6'TVD 19 13736.73 91.56 3.46 4806.52 6228.77 2181.76 3.00 50.37 6513.00 End Dir : 13736.73' MD, 4806.52' TVD 20 14617.33 91.56 3.46 4782.60 7107.45 2234.82 0.00 0.00 7387.54 Z-220 wp03 CP6 Start Dir 32/100' : 14617.33' MD, 4782.6'TVD 21 14771.07 87.64 5.89 4783.68 7260.64 2247.33 3.00 148.17 7540.58 End Dir : 14771.07' MD, 4783.68' TVD 22 18383.58 87.64 5.89 4932.60 10851.03 2617.62 0.00 0.00 11140.72 Z-220 wp03 Toe Total Depth :18383.58' MD,4932.6'TVD WELL DETAILS: Plan: Z-220 +N/-S +E/-W 56.10 Longitude Northing Easting Latitude 0.00 0.00 5959100.12 599846.00 70° 17' 51.6336 N 1490 11' 29.1546 W REFERENCE INFORMATION Co-ordinate (N/E) Reference: Well Plan: Z-220, True North Vertical (TVD) Reference: Z-220 IRIG Planned RKB @ 82.60usft Measured Depth Reference: Z-220 IRIG Planned RKB @ 82.60usft Calculation Method: Minimum Curvature Start Dir 32/100' : 275' MD, 2757VD Start Dir 42/100' : 700' MD, 696.5'TVD 500- . End Dir : 1407.15' MD, 1321.55' TVD ,O 7g0,0- - 9110� 0 SURVEY PROGRAM Date: 2021-09-30T00:00:00 Validated: Yes Version: Depth From Depth To Survey/Plan Tool 26.50 1000.00 Z-220 wp08a (Z-220) 3_Gyro-MWD90+Sag 1000.00 6124.00 Z-220 wp08a (Z-220) 3_MWD+IFR2+MS+Sag 6124.00 18383.58 Z-220 wp08a (Z-220) 3_MWD+IFR2+MS+Sag SV5 rSo Novo O O Q `� !,O �-X O O - O^ o' O - v4j- - - O - - ra O - - ^ Q - - BPRF lb A4, O '� M ^p O^ �y b^ O O" M^' ,O �, •`L Q" hry a cp o"' S - 00, M O O^ b ry rb c Q^ co oo. O' p �, o Q' CG) rp pW O S V i - - OOQ - O - - - W� - ^^ �� - �Q O O" - - ��rO - - - - .^ - - - - - - UG4 3S � rao� cd 09 o' �ry� Q� g O" �_ �C5 rL ^ (b C5 ^ a� `0� ^ �^ �Qri UG3 - moo - - - - O i . rL roC5 - \^p O .00 - ry\. rti - - rn�'y o �(b - - \\00 Cb ^ �ti - w\�O, �^� O� �^- - - wa �' 4000- - a - O c, O p rb' `b - rv, - .� Wes- - - a\ Qi - �� i5 ' O- �- 0 o d 4500 Ica �+a a MB O ��r �O� O Ica O - N1A - 50 0 0" - o_ o _o '' s�' - -' n o oo „ o o o d' o ® 0 0 0 0 -o -o o a rn o to o 9' o o o r o - - - O_ _ _ 6 5/8" x 8 1/2„ o - o 0 �p Fault (255' throw -' - o BO a� :' 0 uO o� ,r�i 00 _ _ �,, �' - p a OBD OBC 9 5/8" x 12 1/4" - Z220 w 03 CP5 Z-220 03 Toe Z-220 wp04 Heel Z-220 wp03 CP1 Z-220 wp03 CP2 Z-220 wp03 CP3 Z-220 wp03 CP4 p Z-220 wp03 CP6 w P 5250 -2250 -1500 -750 0 750 1500 2250 3000 3750 4500 5250 6000 6750 7500 8250 9000 9750 10500 11250 12000 Vertical Section at 10.00o (1500 usft/in) HALUISURTON Project: Prudhoe Bay Site: Z Sperry Drilling Well: Plan: Z-220 Wellbore: Z-220 Plan: Z-220 wp08a 11250 CASING DETAILS TVD TVDSS MD Size Name 4709.80 4627.20 6124.00 9-5/8 9 5/8" x 12 1/4" 4932.60 4850.00 18383.58 6-5/8 6 5/8" x 8 1/2" 10500 WELL DETAILS: Plan: Z-220 56.10 +N/-S +E/-W Northing Easting Latitude Longitude 0.00 0.00 5959100.12 599846.00 70° 17' 51.6336 N 149° 11' 29.1546 W REFERENCE INFORMATION Co-ordinate (N/E) Reference: Well Plan: Z-220, True North Vertical (TVD) Reference: Z-220 TRIG Planned RKB @ 82.60usft Measured Depth Reference: Z-220 TRIG Planned RKB @ 82.60usft Calculation Method: Minimum Curvature 6 5/8" x 8 1/2" Z-220 wp08a Z-220 wp03 Toe 4933 , Total Depth : 18383.58' MD, 4932.6' TVD End Dir : 14771.07' MD, 4783.68' TVD Z-220 wp03 CP6 _ Start Dir 31/100' : 14617.33' MD, 4782.6'TVD End Dir : 13736.73' MD, 4806.52' TVD 6000 Z-220 wp03 CPS - - - - Start Dir 3°/100' : 13643.89' MD, 4807.6'TVD G w h 5250 End Dir : 12152.37' MD, 4801.88' TVD t , " Start Dir 3°/100' : 11940.28' MD, 4812.6'TVD 0 4500 7 Z-220 wp03 CP4 �.i _ End Dir : 11487.32' MD, 4860.09' TVD 3750 Z-220 wp03 CP3 Start Dir 4.03°/100' : 11306.41' MD, 4867.6'TVD End Dir : 9986.33' MD, 4838.68' TVD Z-220 wp03 CP2 - - - - - - - - Start Dir 31/100' : 9951.51' MD, 4837.6TVD -220 wp03 CPl Start Dir 2.830/100' : 8401.81' MD, 4778.55TVD _ - - - - - - - - - - - End Dir : 8221.1' MD, 4772.7' TVD 750- - Start Dir 3°/100' : 275' MD, srjS O0 Start' Start Dir 3.06°/100' : 8217.81' MD, 4772.6TVD Start Dir 4°/100': 700'MD, 696End /TVD Dir:1407.15'MD,1321.55'T_____________--------End _ _ _ _ 9 5/8" x 12 Dir :6305.88'MD, 4712.65'TVD 1/4"750 Start Dir4.5°/100' :3123.72'MD, 2619.96TV' - - _ ' - Start D r 3.2°/100': 6124.07'MD, 4709.8'TVD �a 1500 0 o Z-220 wp04 Heel End Dir : 6024.07' MD, 4709.8' TVD -4500 -3750 -3000 -2250 -1500 -750 0 750 1500 2250 3000 3750 4500 5250 6000 West( -)/East(+) (1500 usft/in) HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Local Co-ordinate Reference: Well Plan: Z-220 TVD Reference: Z-220 IRIG Planned RKB @ 82.60usft MD Reference: Z-220 IRIG Planned RKB @ 82.60usft North Reference: True Survey Calculation Method: Minimum Curvature Project Prudhoe Bay, North Slope, UNITED STATES 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 Z, TR-11-12 Site Position: Northing: From: Map Easting: Position Uncertainty: 0.00 usft Slot Radius: Well Plan: Z-220, Slot SB Well Position +N/-S 0.00 usft Northing: +E/-W 0.00 usft Easting: Position Uncertainty 0.50 usft Wellhead Elevation: Wellbore Z-220 5,957,230.17usft Latitude: 70' 17' 33.0507 N 601,304.82usft Longitude: 149' 10' 47.3652 W 0" Grid Convergence: 0.77 ° 5,959,100.12 usfl Latitude: 70' 17' 51.6336 N 599,846.00 usfl Longitude: 149° 11' 29.1546 W usfl Ground Level: 56.10usft Magnetics Model Name Sample Date Declination (1) BGGM2021 1 /30/2022 15.39 Design Z-220 wp08a Audit Notes: Version: Phase: PLAN Vertical Section: Depth From (TVD) +N/-S (usft) (usft) 26.50 0.00 Dip Angle Field Strength V) (nT) 80.70 57,207.63000144 Tie On Depth: 26.50 +E/-W Direction (usft) (°) 0.00 10.00 121112021 4:52:29PM Page 2 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Local Co-ordinate Reference: Well Plan: Z-220 Company: Hilcorp North Slope, LLC TVD Reference: Z-220 IRIG Planned RKB @ 82.60usft Project: Prudhoe Bay MD Reference: Z-220 IRIG Planned RKB @ 82.60usft Site: Z North Reference: True Well: Plan: Z-220 Survey Calculation Method: Minimum Curvature Wellbore: Z-220 Design: Z-220 wp08a 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) (°) 26.50 0.00 0.00 26.50 -56.10 0.00 0.00 0.00 0.00 0.00 0.00 275.00 0.00 0.00 275.00 192.40 0.00 0.00 0.00 0.00 0.00 0.00 700.00 12.75 215.00 696.50 613.90 -38.58 -27.01 3.00 3.00 0.00 215.00 1,407.15 40.85 223.31 1,321.55 1,238.95 -275.61 -234.65 4.00 3.97 1.18 11.51 3,123.72 40.85 223.31 2,619.96 2,537.36 -1,092.60 -1,004.88 0.00 0.00 0.00 0.00 6,024.07 90.00 50.00 4,709.80 4,627.20 -631.63 -128.11 4.50 1.69 -5.98 -171.19 6,124.07 90.00 50.00 4,709.80 4,627.20 -567.35 -51.51 0.00 0.00 0.00 0.00 6,305.88 88.20 44.47 4,712.65 4,630.05 -443.97 81.89 3.20 -0.99 -3.04 -108.02 8,217.81 88.20 44.47 4,772.60 4,690.00 919.85 1,420.50 0.00 0.00 0.00 0.00 8,221.10 88.15 44.38 4,772.70 4,690.10 922.20 1,422.80 3.06 -1.70 -2.54 -123.84 8,401.81 88.15 44.38 4,778.55 4,695.95 1,051.29 1,549.13 0.00 0.00 0.00 0.00 9,951.51 87.70 0.56 4,837.60 4,755.00 2,447.62 2,126.77 2.83 -0.03 -2.83 -91.39 9,986.33 88.74 0.55 4,838.68 4,756.08 2,482.42 2,127.11 3.00 3.00 -0.02 -0.29 11,306.41 88.74 0.55 4,867.60 4,785.00 3,802.12 2,139.89 0.00 0.00 0.00 0.00 11,487.32 96.02 0.05 4,860.09 4,777.49 3,982.75 2,140.85 4.03 4.02 -0.28 -3.93 11,940.28 96.02 0.05 4,812.60 4,730.00 4,433.22 2,141.27 0.00 0.00 0.00 0.00 12,152.37 89.78 1.31 4,801.88 4,719.28 4,644.91 2,143.80 3.00 -2.94 0.59 168.59 13,643.89 89.78 1.31 4,807.60 4,725.00 6,136.03 2,177.90 0.00 0.00 0.00 0.00 13,736.73 91.56 3.46 4,806.52 4,723.92 6,228.77 2,181.76 3.00 1.91 2.31 50.37 14,617.33 91.56 3.46 4,782.60 4,700.00 7,107.45 2,234.82 0.00 0.00 0.00 0.00 14,771.07 87.64 5.89 4,783.68 4,701.08 7,260.64 2,247.33 3.00 -2.55 1.58 148.17 18,383.58 87.64 5.89 4,932.60 4,850.00 10,851.03 2,617.62 0.00 0.00 0.00 0.00 121112021 4:52:29PM Page 3 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Planned Survey Measured Vertical Depth Inclination Azimuth Depth TVDss (usft) (°) (°) (usft) usft 26.50 0.00 0.00 26.50 -56.10 100.00 0.00 0.00 100.00 17.40 200.00 0.00 0.00 200.00 117.40 275.00 0.00 0.00 275.00 192.40 Start Dir 30/100' : 275' MD, 275'TVD 300.00 0.75 215.00 300.00 217.40 400.00 3.75 215.00 399.91 317.31 500.00 6.75 215.00 499.48 416.88 600.00 9.75 215.00 598.43 515.83 700.00 12.75 215.00 696.50 613.90 Start Dir 40/100' : 700' MD, 696.5'TVD 800.00 16.69 217.78 793.20 710.60 900.00 20.65 219.52 887.92 805.32 1,000.00 24.62 220.72 980.20 897.60 1,100.00 28.60 221.60 1,069.59 986.99 1,200.00 32.59 222.28 1,155.65 1,073.05 1,300.00 36.58 222.83 1,237.96 1,155.36 1,407.15 40.85 223.31 1,321.55 1,238.95 End Dir : 1407.15' MD, 1321.55' TVD 1,500.00 40.85 223.31 1,391.78 1,309.18 1,600.00 40.85 223.31 1,467.42 1,384.82 1,700.00 40.85 223.31 1,543.06 1,460.46 1,800.00 40.85 223.31 1,618.70 1,536.10 1,900.00 40.85 223.31 1,694.34 1,611.74 1,955.87 40.85 223.31 1,736.60 1,654.00 SV5 2,000.00 40.85 223.31 1,769.98 1,687.38 2,100.00 40.85 223.31 1,845.62 1,763.02 2,101.29 40.85 223.31 1,846.60 1,764.00 BPRF 2,200.00 40.85 223.31 1,921.26 1,838.66 2,300.00 40.85 223.31 1,996.90 1,914.30 2,400.00 40.85 223.31 2,072.54 1,989.94 2,500.00 40.85 223.31 2,148.18 2,065.58 2,600.00 40.85 223.31 2,223.82 2,141.22 2,700.00 40.85 223.31 2,299.46 2,216.86 2,800.00 40.85 223.31 2,375.10 2,292.50 2,900.00 40.85 223.31 2,450.74 2,368.14 3,000.00 40.85 223.31 2,526.38 2,443.78 3,100.00 40.85 223.31 2,602.02 2,519.42 3,123.72 40.85 223.31 2,619.96 2,537.36 Start Dir 4.50/100' : 3123.72' MD, 2619.96'TVD 3,200.00 37.46 222.45 2,679.10 2,596.50 3,300.00 33.03 221.09 2,760.75 2,678.15 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Well Plan: Z-220 Z-220 IRIG Planned RKB @ 82.60usft Z-220 IRIG Planned RKB @ 82.60usft True Minimum Curvature Map Map +N/-S +E/-W Northing Easting DLS Vert Section (usft) (usft) (usft) (usft) -56.10 0.00 0.00 5,959,100.12 599,846.00 0.00 0.00 0.00 0.00 5,959,100.12 599,846.00 0.00 0.00 0.00 0.00 5,959,100.12 599,846.00 0.00 0.00 0.00 0.00 5,959,100.12 599,846.00 0.00 0.00 -0.13 -0.09 5,959,099.98 599,845.91 3.00 -0.15 -3.35 -2.35 5,959,096.74 599,843.70 3.00 -3.71 -10.84 -7.59 5,959,089.18 599,838.55 3.00 -12.00 -22.60 -15.82 5,959,077.32 599,830.48 3.00 -25.00 -38.58 -27.01 5,959,061.19 599,819.51 3.00 -42.68 -58.97 -42.14 5,959,040.60 599,804.65 4.00 -65.39 -83.93 -62.17 5,959,015.38 599,784.96 4.00 -93.45 -113.34 -86.99 5,958,985.65 599,760.54 4.00 -126.72 -147.04 -116.48 5,958,951.56 599,731.50 4.00 -165.04 -184.88 -150.50 5,958,913.27 599,697.98 4.00 -208.21 -226.68 -188.89 5,958,870.97 599,660.15 4.00 -256.03 -275.61 -234.65 5,958,821.44 599,615.05 4.00 -312.17 -319.80 -276.32 5,958,776.70 599,573.98 0.00 -362.93 -367.40 -321.19 5,958,728.52 599,529.75 0.00 -417.59 -414.99 -366.06 5,958,680.34 599,485.52 0.00 -472.25 -462.59 -410.93 5,958,632.16 599,441.29 0.00 -526.92 -510.18 -455.80 5,958,583.97 599,397.06 0.00 -581.58 -536.77 -480.87 5,958,557.06 599,372.35 0.00 -612.12 -557.78 -500.67 5,958,535.79 599,352.83 0.00 -636.24 -605.37 -545.54 5,958,487.61 599,308.60 0.00 -690.91 -605.99 -546.12 5,958,486.99 599,308.03 0.00 -691.61 -652.96 -590.41 5,958,439.43 599,264.37 0.00 -745.57 -700.56 -635.28 5,958,391.25 599,220.14 0.00 -800.23 -748.15 -680.15 5,958,343.06 599,175.91 0.00 -854.89 -795.75 -725.02 5,958,294.88 599,131.68 0.00 -909.56 -843.34 -769.89 5,958,246.70 599,087.45 0.00 -964.22 -890.94 -814.76 5,958,198.52 599,043.22 0.00 -1,018.88 -938.53 -859.63 5,958,150.34 598,998.99 0.00 -1,073.55 -986.12 -904.50 5,958,102.15 598,954.76 0.00 -1,128.21 -1,033.72 -949.37 5,958,053.97 598,910.53 0.00 -1,182.87 -1,081.31 -994.24 5,958,005.79 598,866.30 0.00 -1,237.53 -1,092.60 -1,004.88 5,957,994.36 598,855.81 0.00 -1,250.50 -1,127.88 -1,037.67 5,957,958.65 598,823.50 4.50 -1,290.94 -1,170.89 -1,076.13 5,957,915.14 598,785.62 4.50 -1,339.97 121112021 4:52:29PM Page 4 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Planned Survey Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Measured Vertical Depth Inclination Azimuth Depth TVDss +N/-S +E/-W (usft) (°) (°) (usft) usft (usft) (usft) 3,332.95 31.58 220.57 2,788.60 2,706.00 -1,184.21 -1,087.64 SV1 3,400.00 28.62 219.36 2,846.61 2,764.01 -1,209.97 -1,109.25 3,500.00 24.24 217.07 2,936.14 2,853.54 -1,244.87 -1,136.82 3,600.00 19.90 213.85 3,028.79 2,946.19 -1,275.40 -1,158.69 3,687.10 16.19 209.71 3,111.60 3,029.00 -1,298.27 -1,172.97 UG4 3,700.00 15.65 208.94 3,124.00 3,041.40 -1,301.35 -1,174.70 3,800.00 11.59 200.60 3,221.18 3,138.58 -1,322.58 -1,184.77 3,900.00 8.01 184.29 3,319.72 3,237.12 -1,338.94 -1,188.83 4,000.00 5.85 150.68 3,419.02 3,336.42 -1,350.33 -1,186.85 4,044.80 5.83 130.77 3,463.60 3,381.00 -1,353.81 -1,184.01 UG3 4,100.00 6.69 109.21 3,518.47 3,435.87 -1,356.70 -1,178.85 4,200.00 9.77 85.77 3,617.46 3,534.86 -1,357.99 -1,164.88 4,300.00 13.66 74.47 3,715.37 3,632.77 -1,354.20 -1,145.03 4,400.00 17.84 68.23 3,811.60 3,729.00 -1,345.35 -1,119.41 4,500.00 22.14 64.33 3,905.56 3,822.96 -1,331.50 -1,088.18 4,600.00 26.50 61.65 3,996.66 3,914.06 -1,312.73 -1,051.54 4,700.00 30.90 59.69 4,084.35 4,001.75 -1,289.16 -1,009.71 4,800.00 35.33 58.17 4,168.09 4,085.49 -1,260.93 -962.96 4,900.00 39.77 56.95 4,247.36 4,164.76 -1,228.23 -911.56 5,000.00 44.22 55.94 4,321.66 4,239.06 -1,191.24 -855.83 5,049.69 46.43 55.50 4,356.60 4,274.00 -1,171.33 -826.64 MB 5,100.00 48.67 55.08 4,390.55 4,307.95 -1,150.19 -796.13 5,200.00 53.13 54.33 4,453.60 4,371.00 -1,105.35 -732.81 5,300.00 57.60 53.66 4,510.42 4,427.82 -1,056.99 -666.27 5,378.87 61.13 53.18 4,550.60 4,468.00 -1,016.55 -611.79 NA 5,400.00 62.07 53.06 4,560.65 4,478.05 -1,005.40 -596.92 5,420.00 62.96 52.95 4,569.88 4,487.28 -994.72 -582.75 Fault (255' throw) 5,500.00 66.54 52.50 4,604.00 4,521.40 -950.90 -525.18 5,546.15 68.61 52.26 4,621.60 4,539.00 -924.86 -491.39 OBC 5,600.00 71.02 51.99 4,640.18 4,557.58 -893.83 -451.50 5,700.00 75.49 51.49 4,668.99 4,586.39 -834.55 -376.33 5,800.00 79.97 51.02 4,690.23 4,607.63 -773.41 -300.14 5,900.00 84.45 50.56 4,703.79 4,621.19 -710.79 -223.39 5,968.64 87.52 50.25 4,708.60 4,626.00 -667.15 -170.64 OBD 6,000.00 88.92 50.11 4,709.57 4,626.97 -647.08 -146.56 6,024.07 90.00 50.00 4,709.80 4,627.20 -631.63 -128.11 End Dir : 6024.07' MD, 4709.8' TVD Well Plan: Z-220 Z-220 IRIG Planned RKB @ 82.60usft Z-220 IRIG Planned RKB @ 82.60usft True Minimum Curvature Map Map Northing Easting DLS Vert Section (usft) (usft) 2,706.00 5,957,901.67 598,774.29 4.50 -1,355.09 5,957,875.63 598,753.02 4.50 -1,384.20 5,957,840.36 598,725.92 4.50 -1,423.37 5,957,809.55 598,704.46 4.50 -1,457.23 5,957,786.50 598,690.49 4.50 -1,482.23 5,957,783.39 598,688.80 4.50 -1,485.57 5,957,762.04 598,679.01 4.50 -1,508.22 5,957,745.63 598,675.17 4.50 -1,525.03 5,957,734.26 598,677.30 4.50 -1,535.91 5,957,730.82 598,680.18 4.50 -1,538.84 5,957,728.00 598,685.38 4.50 -1,540.79 5,957,726.90 598,699.36 4.50 -1,539.64 5,957,730.95 598,719.16 4.50 -1,532.45 5,957,740.14 598,744.66 4.50 -1,519.29 5,957,754.40 598,775.70 4.50 -1,500.23 5,957,773.65 598,812.08 4.50 -1,475.38 5,957,797.77 598,853.59 4.50 -1,444.91 5,957,826.62 598,899.97 4.50 -1,408.99 5,957,860.00 598,950.92 4.50 -1,367.86 5,957,897.73 599,006.14 4.50 -1,321.75 5,957,918.01 599,035.07 4.50 -1,297.08 5,957,939.55 599,065.29 4.50 -1,270.97 5,957,985.23 599,128.00 4.50 -1,215.81 5,958,034.47 599,193.89 4.50 -1,156.63 5,958,075.62 599,247.82 4.50 -1,107.35 5,958,086.97 599,262.54 4.50 -1,093.78 5,958,097.83 599,276.57 4.50 -1,080.80 5,958,142.41 599,333.54 4.50 -1,027.65 5,958,168.89 599,366.98 4.50 -996.14 5,958,200.45 599,406.45 4.50 -958.66 5,958,260.72 599,480.82 4.50 -887.22 5,958,322.86 599,556.19 4.50 -813.78 5,958,386.49 599,632.09 4.50 -738.78 5,958,430.82 599,684.26 4.50 -686.65 5,958,451.20 599,708.06 4.50 -662.70 5,958,466.90 599,726.30 4.50 -644.28 121112021 4:52:29PM Page 5 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Planned Survey Measured Vertical Depth Inclination Azimuth Depth TVDss (usft) (°) (°) (usft) usft 6,100.00 90.00 50.00 4,709.80 4,627.20 6,124.00 90.00 50.00 4,709.80 4,627.20 9 5/8" x 12 1/4" 6,124.07 90.00 50.00 4,709.80 4,627.20 Start Dir 3.21/100' : 6124.07' MD, 4709.8'TVD 6,200.00 89.25 47.69 4,710.30 4,627.70 6,305.88 88.20 44.47 4,712.65 4,630.05 End Dir : 6305.88' MD, 4712.65' TVD 6,400.00 88.20 44.47 4,715.60 4,633.00 6,500.00 88.20 44.47 4,718.74 4,636.14 6,600.00 88.20 44.47 4,721.87 4,639.27 6,700.00 88.20 44.47 4,725.01 4,642.41 6,800.00 88.20 44.47 4,728.15 4,645.55 6,900.00 88.20 44.47 4,731.28 4,648.68 7,000.00 88.20 44.47 4,734.42 4,651.82 7,100.00 88.20 44.47 4,737.55 4,654.95 7,200.00 88.20 44.47 4,740.69 4,658.09 7,300.00 88.20 44.47 4,743.82 4,661.22 7,400.00 88.20 44.47 4,746.96 4,664.36 7,500.00 88.20 44.47 4,750.09 4,667.49 7,600.00 88.20 44.47 4,753.23 4,670.63 7,700.00 88.20 44.47 4,756.36 4,673.76 7,800.00 88.20 44.47 4,759.50 4,676.90 7,900.00 88.20 44.47 4,762.64 4,680.04 8,000.00 88.20 44.47 4,765.77 4,683.17 8,100.00 88.20 44.47 4,768.91 4,686.31 8,200.00 88.20 44.47 4,772.04 4,689.44 8,217.81 88.20 44.47 4,772.60 4,690.00 Start Dir 3.061/100' : 8217.81' MD, 4772.6'TVD 8,221.10 88.15 44.38 4,772.70 4,690.10 End Dir : 8221.1' MD, 4772.7' TVD 8,300.00 88.15 44.38 4,775.26 4,692.66 8,401.81 88.15 44.38 4,778.55 4,695.95 Start Dir 2.830/100' : 8401.81' MD, 4778.55'TVD 8,500.00 88.08 41.61 4,781.78 4,699.18 8,600.00 88.02 38.78 4,785.18 4,702.58 8,700.00 87.96 35.95 4,788.69 4,706.09 8,800.00 87.91 33.12 4,792.29 4,709.69 8,900.00 87.86 30.30 4,795.97 4,713.37 9,000.00 87.82 27.47 4,799.74 4,717.14 9,100.00 87.79 24.64 4,803.57 4,720.97 9,200.00 87.76 21.81 4,807.46 4,724.86 9,300.00 87.73 18.99 4,811.40 4,728.80 9,400.00 87.71 16.16 4,815.38 4,732.78 9,500.00 87.70 13.33 4,819.39 4,736.79 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Well Plan: Z-220 Z-220 IRIG Planned RKB @ 82.60usft Z-220 IRIG Planned RKB @ 82.60usft True Minimum Curvature Map Map +N/-S +E/-W Northing Easting DLS Vert Section (usft) (usft) (usft) (usft) 4,627.20 -582.82 -69.95 5,958,516.47 599,783.81 0.00 -586.11 -567.40 -51.56 5,958,532.14 599,801.99 0.00 -567.73 -567.35 -51.51 5,958,532.18 599,802.04 0.00 -567.68 -517.39 5.66 5,958,582.90 599,858.53 3.20 -508.54 -443.97 81.89 5,958,657.32 599,933.77 3.20 -423.00 -376.83 147.79 5,958,725.32 599,998.77 0.00 -345.44 -305.50 217.80 5,958,797.57 600,067.82 0.00 -263.04 -234.17 287.81 5,958,869.82 600,136.87 0.00 -180.63 -162.83 357.83 5,958,942.07 600,205.93 0.00 -98.22 -91.50 427.84 5,959,014.32 600,274.98 0.00 -15.82 -20.17 497.85 5,959,086.57 600,344.03 0.00 66.59 51.16 567.87 5,959,158.82 600,413.09 0.00 149.00 122.50 637.88 5,959,231.07 600,482.14 0.00 231.40 193.83 707.89 5,959,303.32 600,551.19 0.00 313.81 265.16 777.91 5,959,375.57 600,620.25 0.00 396.21 336.49 847.92 5,959,447.82 600,689.30 0.00 478.62 407.82 917.94 5,959,520.07 600,758.36 0.00 561.03 479.16 987.95 5,959,592.32 600,827.41 0.00 643.43 550.49 1,057.96 5,959,664.57 600,896.46 0.00 725.84 621.82 1,127.98 5,959,736.82 600,965.52 0.00 808.25 693.15 1,197.99 5,959,809.07 601,034.57 0.00 890.65 764.49 1,268.00 5,959,881.32 601,103.62 0.00 973.06 835.82 1,338.02 5,959,953.56 601,172.68 0.00 1,055.46 907.15 1,408.03 5,960,025.81 601,241.73 0.00 1,137.87 919.85 1,420.50 5,960,038.68 601,254.03 0.00 1,152.54 922.20 1,422.80 5,960,041.06 601,256.30 3.06 1,155.26 978.56 1,477.96 5,960,098.14 601,310.70 0.00 1,220.34 1,051.29 1,549.13 5,960,171.80 601,380.89 0.00 1,304.32 1,123.06 1,616.05 5,960,244.45 601,446.84 2.83 1,386.62 1,199.40 1,680.54 5,960,321.63 601,510.31 2.83 1,473.00 1,278.82 1,741.18 5,960,401.84 601,569.89 2.83 1,561.74 1,361.13 1,797.84 5,960,484.89 601,625.44 2.83 1,652.64 1,446.13 1,850.36 5,960,570.58 601,676.82 2.83 1,745.48 1,533.62 1,898.63 5,960,658.69 601,723.92 2.83 1,840.02 1,623.38 1,942.51 5,960,749.02 601,766.60 2.83 1,936.04 1,715.20 1,981.92 5,960,841.35 601,804.78 2.83 2,033.30 1,808.85 2,016.75 5,960,935.44 601,838.36 2.83 2,131.57 1,904.09 2,046.91 5,961,031.07 601,867.25 2.83 2,230.61 2,000.71 2,072.34 5,961,128.01 601,891.39 2.83 2,330.18 121112021 4:52:29PM Page 6 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Planned Survey Measured Vertical Depth Inclination Azimuth Depth (usft) (°) (°) (usft) Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Map TVDss +N/-S +E/-W Northing usft (usft) (usft) (usft) 9,600.00 87.69 10.50 4,823.42 4,740.82 9,700.00 87.68 7.67 4,827.46 4,744.86 9,800.00 87.69 4.85 4,831.50 4,748.90 9,900.00 87.69 2.02 4,835.53 4,752.93 9,951.51 87.70 0.56 4,837.60 4,755.00 Start Dir 30/100' : 9951.51' MD, 4837.6'TVD 9,986.33 88.74 0.55 4,838.68 4,756.08 End Dir : 9986.33' MD, 4838.68' TVD 10,000.00 88.74 0.55 4,838.98 4,756.38 10,100.00 88.74 0.55 4,841.17 4,758.57 10,200.00 88.74 0.55 4,843.36 4,760.76 10,300.00 88.74 0.55 4,845.55 4,762.95 10,400.00 88.74 0.55 4,847.74 4,765.14 10,500.00 88.74 0.55 4,849.93 4,767.33 10,600.00 88.74 0.55 4,852.12 4,769.52 10,700.00 88.74 0.55 4,854.31 4,771.71 10,800.00 88.74 0.55 4,856.51 4,773.91 10,900.00 88.74 0.55 4,858.70 4,776.10 11,000.00 88.74 0.55 4,860.89 4,778.29 11,100.00 88.74 0.55 4,863.08 4,780.48 11,200.00 88.74 0.55 4,865.27 4,782.67 11,306.41 88.74 0.55 4,867.60 4,785.00 Start Dir 4.030/100' : 11306.41' MD, 4867.6'TVD 11,400.00 92.51 0.30 4,866.58 4,783.98 11,487.32 96.02 0.05 4,860.09 4,777.49 End Dir : 11487.32' MD, 4860.09' TVD 11,500.00 96.02 0.05 4,858.76 4,776.16 11,600.00 96.02 0.05 4,848.27 4,765.67 11,700.00 96.02 0.05 4,837.79 4,755.19 11,800.00 96.02 0.05 4,827.31 4,744.71 11,900.00 96.02 0.05 4,816.82 4,734.22 11,940.28 96.02 0.05 4,812.60 4,730.00 Start Dir 30/100' : 11940.28' MD, 4812.6'TVD 12,000.00 94.26 0.41 4,807.25 4,724.65 12,100.00 91.32 1.00 4,802.38 4,719.78 12,152.37 89.78 1.31 4,801.88 4,719.28 End Dir : 12152.37' MD, 4801.88' TVD 12,200.00 89.78 1.31 4,802.06 4,719.46 12,300.00 89.78 1.31 4,802.44 4,719.84 12,400.00 89.78 1.31 4,802.83 4,720.23 12,500.00 89.78 1.31 4,803.21 4,720.61 12,600.00 89.78 1.31 4,803.60 4,721.00 12,700.00 89.78 1.31 4,803.98 4,721.38 12,800.00 89.78 1.31 4,804.36 4,721.76 12,900.00 89.78 1.31 4,804.75 4,722.15 Well Plan: Z-220 Z-220 IRIG Planned RKB @ 82.60usft Z-220 IRIG Planned RKB @ 82.60usft True Minimum Curvature Map Easting DLS Vert Section (usft) 4,740.82 2,098.47 2,092.96 5,961,226.02 601,910.72 2.83 2,430.03 2,197.12 2,108.74 5,961,324.87 601,925.18 2.83 2,529.92 2,296.44 2,119.64 5,961,424.31 601,934.75 2.83 2,629.62 2,396.17 2,125.62 5,961,524.10 601,939.41 2.83 2,728.87 2,447.62 2,126.77 5,961,575.56 601,939.88 2.83 2,779.74 2,482.42 2,127.11 5,961,610.36 601,939.76 3.00 2,814.08 2,496.09 2,127.24 5,961,624.03 601,939.71 0.00 2,827.56 2,596.06 2,128.21 5,961,723.99 601,939.35 0.00 2,926.18 2,696.03 2,129.18 5,961,823.96 601,938.99 0.00 3,024.80 2,796.00 2,130.15 5,961,923.92 601,938.63 0.00 3,123.42 2,895.97 2,131.11 5,962,023.89 601,938.27 0.00 3,222.04 2,995.94 2,132.08 5,962,123.86 601,937.91 0.00 3,320.66 3,095.91 2,133.05 5,962,223.82 601,937.54 0.00 3,419.28 3,195.89 2,134.02 5,962,323.79 601,937.18 0.00 3,517.90 3,295.86 2,134.99 5,962,423.76 601,936.82 0.00 3,616.52 3,395.83 2,135.95 5,962,523.72 601,936.46 0.00 3,715.14 3,495.80 2,136.92 5,962,623.69 601,936.10 0.00 3,813.76 3,595.77 2,137.89 5,962,723.66 601,935.74 0.00 3,912.38 3,695.74 2,138.86 5,962,823.62 601,935.38 0.00 4,011.00 3,802.12 2,139.89 5,962,930.00 601,935.00 0.00 4,115.95 3,895.69 2,140.58 5,963,023.55 601,934.45 4.03 4,208.21 3,982.75 2,140.85 5,963,110.60 601,933.56 4.03 4,293.99 3,995.36 2,140.86 5,963,123.22 601,933.41 0.00 4,306.42 4,094.81 2,140.96 5,963,222.65 601,932.18 0.00 4,404.37 4,194.26 2,141.05 5,963,322.08 601,930.95 0.00 4,502.33 4,293.71 2,141.14 5,963,421.51 601,929.72 0.00 4,600.28 4,393.16 2,141.24 5,963,520.95 601,928.49 0.00 4,698.24 4,433.22 2,141.27 5,963,561.00 601,928.00 0.00 4,737.70 4,492.69 2,141.51 5,963,620.47 601,927.45 3.00 4,796.31 4,592.55 2,142.74 5,963,720.33 601,927.35 3.00 4,894.87 4,644.91 2,143.80 5,963,772.68 601,927.71 3.00 4,946.61 4,692.53 2,144.89 5,963,820.31 601,928.17 0.00 4,993.69 4,792.50 2,147.17 5,963,920.30 601,929.13 0.00 5,092.54 4,892.47 2,149.46 5,964,020.28 601,930.09 0.00 5,191.40 4,992.45 2,151.75 5,964,120.27 601,931.04 0.00 5,290.25 5,092.42 2,154.03 5,964,220.25 601,932.00 0.00 5,389.10 5,192.39 2,156.32 5,964,320.24 601,932.96 0.00 5,487.95 5,292.37 2,158.61 5,964,420.23 601,933.92 0.00 5,586.80 5,392.34 2,160.89 5,964,520.21 601,934.87 0.00 5,685.65 121112021 4:52:29PM Page 7 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Planned Survey Measured Vertical Depth Inclination Azimuth Depth (usft) (°) (°) (usft) Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Map TVDss +N/-S +E/-W Northing usft (usft) (usft) (usft) 13,000.00 89.78 1.31 4,805.13 4,722.53 13,100.00 89.78 1.31 4,805.51 4,722.91 13,200.00 89.78 1.31 4,805.90 4,723.30 13,300.00 89.78 1.31 4,806.28 4,723.68 13,400.00 89.78 1.31 4,806.66 4,724.06 13,500.00 89.78 1.31 4,807.05 4,724.45 13,600.00 89.78 1.31 4,807.43 4,724.83 13,643.89 89.78 1.31 4,807.60 4,725.00 Start Dir 30/100' : 13643.89' MD, 4807.6'TVD 13,700.00 90.85 2.61 4,807.29 4,724.69 13,736.73 91.56 3.46 4,806.52 4,723.92 End Dir : 13736.73' MD, 4806.52' TVD 13,800.00 91.56 3.46 4,804.80 4,722.20 13,900.00 91.56 3.46 4,802.08 4,719.48 14,000.00 91.56 3.46 4,799.37 4,716.77 14,100.00 91.56 3.46 4,796.65 4,714.05 14,200.00 91.56 3.46 4,793.93 4,711.33 14,300.00 91.56 3.46 4,791.22 4,708.62 14,400.00 91.56 3.46 4,788.50 4,705.90 14,500.00 91.56 3.46 4,785.79 4,703.19 14,600.00 91.56 3.46 4,783.07 4,700.47 14,617.33 91.56 3.46 4,782.60 4,700.00 Start Dir 30/100' : 14617.33' MD, 4782.6'TVD 14,700.00 89.45 4.76 4,781.87 4,699.27 14,771.07 87.64 5.89 4,783.68 4,701.08 End Dir : 14771.07' MD, 4783.68' TVD 14,800.00 87.64 5.89 4,784.87 4,702.27 14,900.00 87.64 5.89 4,789.00 4,706.40 15,000.00 87.64 5.89 4,793.12 4,710.52 15,100.00 87.64 5.89 4,797.24 4,714.64 15,200.00 87.64 5.89 4,801.36 4,718.76 15,300.00 87.64 5.89 4,805.49 4,722.89 15,400.00 87.64 5.89 4,809.61 4,727.01 15,500.00 87.64 5.89 4,813.73 4,731.13 15,600.00 87.64 5.89 4,817.85 4,735.25 15,700.00 87.64 5.89 4,821.97 4,739.37 15,800.00 87.64 5.89 4,826.10 4,743.50 15,900.00 87.64 5.89 4,830.22 4,747.62 16,000.00 87.64 5.89 4,834.34 4,751.74 16,100.00 87.64 5.89 4,838.46 4,755.86 16,200.00 87.64 5.89 4,842.59 4,759.99 16,300.00 87.64 5.89 4,846.71 4,764.11 16,400.00 87.64 5.89 4,850.83 4,768.23 16,500.00 87.64 5.89 4,854.95 4,772.35 16,600.00 87.64 5.89 4,859.08 4,776.48 Well Plan: Z-220 Z-220 IRIG Planned RKB @ 82.60usft Z-220 IRIG Planned RKB @ 82.60usft True Minimum Curvature Map Easting DLS Vert Section (usft) 4,722.53 5,492.31 2,163.18 5,964,620.20 601,935.83 0.00 5,784.50 5,592.28 2,165.47 5,964,720.18 601,936.79 0.00 5,883.35 5,692.26 2,167.75 5,964,820.17 601,937.75 0.00 5,982.21 5,792.23 2,170.04 5,964,920.15 601,938.71 0.00 6,081.06 5,892.20 2,172.32 5,965,020.14 601,939.66 0.00 6,179.91 5,992.18 2,174.61 5,965,120.13 601,940.62 0.00 6,278.76 6,092.15 2,176.90 5,965,220.11 601,941.58 0.00 6,377.61 6,136.03 2,177.90 5,965,264.00 601,942.00 0.00 6,421.00 6,192.10 2,179.82 5,965,320.09 601,943.17 3.00 6,476.55 6,228.77 2,181.76 5,965,356.77 601,944.63 3.00 6,513.00 6,291.90 2,185.57 5,965,419.95 601,947.60 0.00 6,575.84 6,391.69 2,191.60 5,965,519.79 601,952.30 0.00 6,675.15 6,491.47 2,197.62 5,965,619.63 601,957.00 0.00 6,774.46 6,591.25 2,203.65 5,965,719.48 601,961.69 0.00 6,873.77 6,691.03 2,209.67 5,965,819.32 601,966.39 0.00 6,973.08 6,790.81 2,215.70 5,965,919.17 601,971.09 0.00 7,072.40 6,890.59 2,221.72 5,966,019.01 601,975.79 0.00 7,171.71 6,990.37 2,227.75 5,966,118.85 601,980.49 0.00 7,271.02 7,090.16 2,233.77 5,966,218.70 601,985.19 0.00 7,370.33 7,107.45 2,234.82 5,966,236.00 601,986.00 0.00 7,387.54 7,189.90 2,240.74 5,966,318.51 601,990.83 3.00 7,469.77 7,260.64 2,247.33 5,966,389.33 601,996.48 3.00 7,540.58 7,289.38 2,250.30 5,966,418.11 601,999.06 0.00 7,569.40 7,388.77 2,260.55 5,966,517.62 602,007.99 0.00 7,669.06 7,488.16 2,270.80 5,966,617.12 602,016.92 0.00 7,768.72 7,587.55 2,281.05 5,966,716.63 602,025.85 0.00 7,868.38 7,686.94 2,291.30 5,966,816.14 602,034.77 0.00 7,968.03 7,786.32 2,301.55 5,966,915.64 602,043.70 0.00 8,067.69 7,885.71 2,311.80 5,967,015.15 602,052.63 0.00 8,167.35 7,985.10 2,322.05 5,967,114.65 602,061.56 0.00 8,267.01 8,084.49 2,332.30 5,967,214.16 602,070.49 0.00 8,366.67 8,183.88 2,342.55 5,967,313.67 602,079.41 0.00 8,466.32 8,283.26 2,352.80 5,967,413.17 602,088.34 0.00 8,565.98 8,382.65 2,363.05 5,967,512.68 602,097.27 0.00 8,665.64 8,482.04 2,373.30 5,967,612.19 602,106.20 0.00 8,765.30 8,581.43 2,383.55 5,967,711.69 602,115.13 0.00 8,864.95 8,680.81 2,393.80 5,967,811.20 602,124.05 0.00 8,964.61 8,780.20 2,404.05 5,967,910.71 602,132.98 0.00 9,064.27 8,879.59 2,414.30 5,968,010.21 602,141.91 0.00 9,163.93 8,978.98 2,424.55 5,968,109.72 602,150.84 0.00 9,263.59 9,078.37 2,434.80 5,968,209.23 602,159.76 0.00 9,363.24 121112021 4:52:29PM Page 8 COMPASS 5000.15 Build 91 E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Company: Hilcorp North Slope, LLC Project: Prudhoe Bay Site: Z Well: Plan: Z-220 Wellbore: Z-220 Design: Z-220 wp08a Planned Survey Measured Vertical Depth Inclination Azimuth Depth (usft) (°) (°) (usft) 16,700.00 87.64 5.89 4,863.20 16,800.00 87.64 5.89 4,867.32 16,900.00 87.64 5.89 4,871.44 17,000.00 87.64 5.89 4,875.56 17,100.00 87.64 5.89 4,879.69 17,200.00 87.64 5.89 4,883.81 17,300.00 87.64 5.89 4,887.93 17,400.00 87.64 5.89 4,892.05 17,500.00 87.64 5.89 4,896.18 17,600.00 87.64 5.89 4,900.30 17,700.00 87.64 5.89 4,904.42 17,800.00 87.64 5.89 4,908.54 17,900.00 87.64 5.89 4,912.67 18,000.00 87.64 5.89 4,916.79 18,100.00 87.64 5.89 4,920.91 18,200.00 87.64 5.89 4,925.03 18,300.00 87.64 5.89 4,929.15 18,383.58 87.64 5.89 4,932.60 Total Depth : 18383.58' MD, 4932.6' TVD Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Well Plan: Z-220 Z-220 IRIG Planned RKB @ 82.60usft Z-220 IRIG Planned RKB @ 82.60usft True Minimum Curvature Map Map TVDss +N/-S +E/-W Northing Easting DLS Vert Section usft (usft) (usft) (usft) (usft) 4,780.60 4,780.60 9,177.75 2,445.05 5,968,308.73 602,168.69 0.00 9,462.90 4,784.72 9,277.14 2,455.30 5,968,408.24 602,177.62 0.00 9,562.56 4,788.84 9,376.53 2,465.55 5,968,507.74 602,186.55 0.00 9,662.22 4,792.96 9,475.92 2,475.80 5,968,607.25 602,195.48 0.00 9,761.88 4,797.09 9,575.31 2,486.05 5,968,706.76 602,204.40 0.00 9,861.53 4,801.21 9,674.69 2,496.30 5,968,806.26 602,213.33 0.00 9,961.19 4,805.33 9,774.08 2,506.55 5,968,905.77 602,222.26 0.00 10,060.85 4,809.45 9,873.47 2,516.80 5,969,005.28 602,231.19 0.00 10,160.51 4,813.58 9,972.86 2,527.05 5,969,104.78 602,240.12 0.00 10,260.16 4,817.70 10,072.24 2,537.30 5,969,204.29 602,249.04 0.00 10,359.82 4,821.82 10,171.63 2,547.55 5,969,303.80 602,257.97 0.00 10,459.48 4,825.94 10,271.02 2,557.80 5,969,403.30 602,266.90 0.00 10,559.14 4,830.07 10,370.41 2,568.05 5,969,502.81 602,275.83 0.00 10,658.80 4,834.19 10,469.80 2,578.30 5,969,602.32 602,284.75 0.00 10,758.45 4,838.31 10,569.18 2,588.55 5,969,701.82 602,293.68 0.00 10,858.11 4,842.43 10,668.57 2,598.80 5,969,801.33 602,302.61 0.00 10,957.77 4,846.55 10,767.96 2,609.05 5,969,900.83 602,311.54 0.00 11,057.43 4,850.00 10,851.03 2,617.62 5,969,984.00 602,319.00 0.00 11,140.72 121112021 4:52:29PM Page 9 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Local Co-ordinate Reference: Well Plan: Z-220 Company: Hilcorp North Slope, LLC TVD Reference: Z-220 IRIG Planned RKB @ 82.60usft Project: Prudhoe Bay MD Reference: Z-220 IRIG Planned RKB @ 82.60usft Site: Z North Reference: True Well: Plan: Z-220 Survey Calculation Method: Minimum Curvature Wellbore: Z-220 Design: Z-220 wp08a Targets Target Name - hit/miss target Dip Angle Dip Dir. TVD +N/-S +E/-W - Shape (°) (°) (usft) (usft) (usft) Z-220 wp03 CP6 0.00 0.00 4,782.60 7,107.45 2,234.82 - plan hits target center - Point Z-220 wp03 CP2 0.00 0.00 4,837.60 2,469.67 2,006.16 - plan misses target center by 120.82usft at 9972.37usft MD (4838.32 TVD, 2468.47 N, 2126.97 E) - Point Z-220 wp03 CP3 0.00 0.00 4,867.60 3,802.12 2,139.89 - plan hits target center - Point Z-220 wp04 Heel 0.00 0.00 4,709.80 -559.34 -66.44 - plan misses target center by 15.74usft at 6117.78usft MD (4709.80 TVD,-571.39 N, -56.33 E) - Circle (radius 30.00) Z-220 wp03 Toe 0.00 0.00 4,932.60 10,851.03 2,617.62 - plan hits target center - Point Z-220 wp03 CP1 0.00 0.00 4,772.60 904.57 1,390.26 - plan misses target center by 10.92usft at 8185.74usft MD (4771.59 TVD, 896.98 N, 1398.05 E) - Point Z-220 wp03 CP4 0.00 0.00 4,812.60 4,433.22 2,141.27 - plan hits target center - Point Z-220 wp03 CP5 0.00 0.00 4,807.60 6,136.03 2,177.90 - plan hits target center - Point Casing Points Northing Easting (usft) (usft) 5,966,236.00 601,986.00 5,961,596.00 601,819.00 5,962,930.00 601,935.00 5,958,540.00 599,787.00 5,969,984.00 602,319.00 5,960,023.00 601,224.00 5,963,561.00 601,928.00 5,965,264.00 601,942.00 Measured Vertical Casing Hole Depth Depth Diameter Diameter (usft) (usft) Name (') (") 6,124.00 4,709.80 9 5/8" x 12 1 /4" 9-5/8 12-1 /4 18,383.58 4,932.60 6 5/8" x 8 1/2" 6-5/8 8-1/2 Formations Measured Vertical Depth Depth (usft) (usft) 5,378.87 4,550.60 3,332.95 2,788.60 5,968.64 4,708.60 5,420.00 4,569.88 1,955.87 1,736.60 5,049.69 4,356.60 4,044.80 3,463.60 2,101.29 1,846.60 5,546.15 4,621.60 3,687.10 3,111.60 Vertical Dip Depth SS Dip Direction Name Lithology (1 (°) NA 0.00 SV 1 0.00 OBD 0.00 Fault (255' throw) 0.00 SV5 0.00 M B 0.00 UG3 0.00 BPRF 0.00 OBC 0.00 UG4 0.00 121112021 4:52:29PM Page 10 COMPASS 5000.15 Build 91E HALLIBURTON Standard Proposal Report Database: NORTH US + CANADA Local Co-ordinate Reference: Well Plan: Z-220 Company: Hilcorp North Slope, LLC TVD Reference: Z-220 IRIG Planned RKB @ 82.60usft Project: Prudhoe Bay MD Reference: Z-220 IRIG Planned RKB @ 82.60usft Site: Z North Reference: True Well: Plan: Z-220 Survey Calculation Method: Minimum Curvature Wellbore: Z-220 Design: Z-220 wp08a Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (usft) (usft) (usft) (usft) Comment 275.00 275.00 0.00 0.00 Start Dir 30/100' : 275' MD, 275'TVD 700.00 696.50 -38.58 -27.01 Start Dir 40/100' : 700' MD, 696.5'TVD 1,407.15 1,321.55 -275.61 -234.65 End Dir : 1407.15' MD, 1321.55' TVD 3,123.72 2,619.96 -1,092.60 -1,004.88 Start Dir4.50/100' : 3123.72' MD, 2619.96'TVD 6,024.07 4,709.80 -631.63 -128.11 End Dir : 6024.07' MD, 4709.8' TVD 6,124.07 4,709.80 -567.35 -51.51 Start Dir 3.20/100' : 6124.07' MD, 4709.8'TVD 6,305.88 4,712.65 -443.97 81.89 End Dir : 6305.88' MD, 4712.65' TVD 8,217.81 4,772.60 919.85 1,420.50 Start Dir 3.061/100' : 8217.81' MD, 4772.6'TVD 8,221.10 4,772.70 922.20 1,422.80 End Dir : 8221.1' MD, 4772.7' TVD 8,401.81 4,778.55 1,051.29 1,549.13 Start Dir 2.831/100' : 8401.81' MD, 4778.55'TVD 9,951.51 4,837.60 2,447.62 2,126.77 Start Dir 30/100' : 9951.51' MD, 4837.6'TVD 9,986.33 4,838.68 2,482.42 2,127.11 End Dir : 9986.33' MD, 4838.68' TVD 11,306.41 4,867.60 3,802.12 2,139.89 Start Dir4.03°/100' : 11306.41' MD, 4867.6'TVD 11,487.32 4,860.09 3,982.75 2,140.85 End Dir : 11487.32' MD, 4860.09' TVD 11,940.28 4,812.60 4,433.22 2,141.27 Start Dir 30/100' : 11940.28' MD, 4812.6'TVD 12,152.37 4,801.88 4,644.91 2,143.80 End Dir : 12152.37' MD, 4801.88' TVD 13,643.89 4,807.60 6,136.03 2,177.90 Start Dir 30/100' : 13643.89' MD, 4807.6'TVD 13,736.73 4,806.52 6,228.77 2,181.76 End Dir : 13736.73' MD, 4806.52' TVD 14,617.33 4,782.60 7,107.45 2,234.82 Start Dir 30/100' : 14617.33' MD, 4782.6'TVD 14,771.07 4,783.68 7,260.64 2,247.33 End Dir : 14771.07' MD, 4783.68' TVD 18,383.58 4,932.60 10,851.03 2,617.62 Total Depth : 18383.58' MD, 4932.6' TVD 121112021 4:52:29PM Page 11 COMPASS 5000.15 Build 91E Hilcorp North Slope, LLC Prudhoe Bay Z Plan: Z-220 Z-220 50029xxxxx Z-220 wp08a Sperry Drilling Services Clearance Summary Anticollision Report 01 December, 2021 Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Well Coordinates: 5,959,100.12 N, 599,846.00 E (70' 17' 51.63" N, 149° 11' 29.15" W) Datum Height: Z-220 IRIG Planned RKB @ 82.60usft Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Geodetic Scale Factor Applied Version: 5000.15 Build: 91E Scan Type: • • = Scan Type: 25.00 HALLIBURTON Sperry Drilling Services HALLiBURTION Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Hilcorp North Slope, LLC Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft EX HIGHLANDST HIGHLANDST - HIGHLANDST - HIGHLANDST - HIGHLANDST - HIGHLANDST - HIGHLANDST - HIGHLANDST - HIGHLANDST - HIGHLANDST - Z Plan: Z-221 - Z-221 - Z-221 wp05 251.50 29.92 251.50 27.15 251.80 10.785 Centre Distance Pass - Plan: Z-221 - Z-221 - Z-221 wp05 301.50 30.03 301.50 26.95 301.80 9.757 Ellipse Separation Pass - Plan: Z-221 - Z-221 - Z-221 wp05 451.50 34.97 451.50 30.89 451.80 8.578 Clearance Factor Pass - Z-01 - Z-01 - Z-01 5,415.90 146.21 5,415.90 100.04 4,890.34 3.167 Centre Distance Pass - Z-01 - Z-01 - Z-01 5,426.50 146.61 5,426.50 99.29 4,889.92 3.098 Ellipse Separation Pass - Z-01 - Z-01 - Z-01 5,451.50 150.65 5,451.50 101.44 4,888.60 3.061 Clearance Factor Pass - Z-01 - Z-01A - Z-01 A 5,415.90 146.21 5,415.90 100.04 4,890.34 3.167 Centre Distance Pass - Z-01 - Z-01 A - Z-01 A 5,426.50 146.61 5,426.50 99.29 4,889.92 3.098 Ellipse Separation Pass - Z-01 - Z-01A - Z-01 A 5,451.50 150.65 5,451.50 101.44 4,888.60 3.061 Clearance Factor Pass - Z-01-Z-01APB1-Z-01APB1 5,415.90 146.21 5,415.90 100.04 4,890.34 3.167 Centre Distance Pass - Z-01-Z-01APB1-Z-01APB1 5,426.50 146.61 5,426.50 99.29 4,889.92 3.098 Ellipse Separation Pass - Z-01-Z-01APB1-Z-01APB1 5,451.50 150.65 5,451.50 101.44 4,888.60 3.061 Clearance Factor Pass - Z-01 - Z-01APB2 - Z-01APB2 5,415.90 146.21 5,415.90 100.04 4,890.34 3.167 Centre Distance Pass - Z-01 - Z-01AP132 - Z-01AP132 5,426.50 146.61 5,426.50 99.29 4,889.92 3.098 Ellipse Separation Pass - Z-01 - Z-01AP132 - Z-01APB2 5,451.50 150.65 5,451.50 101.44 4,888.60 3.061 Clearance Factor Pass - Z-01 - Z-01 B - Z-01 B 5,415.90 146.21 5,415.90 100.04 4,890.34 3.167 Centre Distance Pass - Z-01 - Z-01 B - Z-01 B 5,426.50 146.61 5,426.50 99.29 4,889.92 3.098 Ellipse Separation Pass - Z-01 - Z-01 B - Z-01 B 5,451.50 150.65 5,451.50 101.44 4,888.60 3.061 Clearance Factor Pass - Z-02 - Z-02 - Z-02 5,478.96 413.52 5,478.96 364.56 4,861.62 8.446 Centre Distance Pass - Z-02 - Z-02 - Z-02 5,501.50 414.17 5,501.50 364.54 4,862.21 8.346 Ellipse Separation Pass - Z-02 - Z-02 - Z-02 5,551.50 420.22 5,551.50 369.50 4,862.10 8.285 Clearance Factor Pass - Z-02 - Z-02A - Z-02A 5,478.96 413.52 5,478.96 364.40 4,854.10 8.419 Centre Distance Pass - Z-02 - Z-02A - Z-02A 5,501.50 414.17 5,501.50 364.39 4,854.69 8.319 Ellipse Separation Pass - 01 December, 2021 - 16:59 Page 2 of 10 COMPASS Hilcorp North Slope, LLC HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-02 - Z-02A - Z-02A 5,551.50 420.22 5,551.50 369.34 4,854.58 8.259 Clearance Factor Pass - Z-03 - Z-03 - Z-03 5,944.35 345.83 5,944.35 295.06 4,813.03 6.812 Ellipse Separation Pass - Z-03 - Z-03 - Z-03 6,051.50 360.22 6,051.50 307.01 4,816.82 6.770 Clearance Factor Pass - Z-03 - Z-03A - Z-03A 5,944.35 345.83 5,944.35 295.23 4,813.03 6.836 Ellipse Separation Pass - Z-03 - Z-03A - Z-03A 6,051.50 360.22 6,051.50 307.20 4,816.82 6.793 Clearance Factor Pass - Z-100 - Z-100 - Z-100 356.97 336.79 356.97 333.56 359.87 104.367 Centre Distance Pass - Z-100 - Z-100 - Z-100 426.50 337.06 426.50 333.34 430.25 90.461 Ellipse Separation Pass - Z-100 - Z-100 - Z-100 6,125.00 1,410.49 6,125.00 1,371.17 4,466.44 35.869 Clearance Factor Pass - Z-103 - Z-103 - Z-103 6,125.00 439.65 6,125.00 385.25 4,819.41 8.082 Clearance Factor Pass - Z-103 - Z-103PB1 - Z-103PB1 6,125.00 439.65 6,125.00 385.18 4,819.41 8.071 Clearance Factor Pass - Z-103 - Z-103PB2 - Z-103PB2 6,125.00 439.65 6,125.00 385.25 4,819.41 8.082 Clearance Factor Pass - Z-108 - Z-108 - Z-108 2,576.50 140.91 2,576.50 118.30 2,425.51 6.232 Ellipse Separation Pass - Z-108 - Z-108 - Z-108 2,589.55 140.78 2,589.55 118.54 2,437.03 6.328 Centre Distance Pass - Z-108 - Z-108 - Z-108 4,426.50 314.02 4,426.50 246.34 4,122.59 4.640 Clearance Factor Pass - Z-11 - Z-11 - Z-11 5,751.50 84.73 5,751.50 38.00 4,869.03 1.813 Clearance Factor Pass - Z-11 - Z-11 - Z-11 5,770.58 82.64 5,770.58 38.58 4,866.91 1.876 Centre Distance Pass - Z-11-Z-11A-Z-11A 5,751.50 84.73 5,751.50 38.00 4,869.03 1.813 Clearance Factor Pass - Z-11-Z-11A-Z-11A 5,770.58 82.64 5,770.58 38.58 4,866.91 1.876 Centre Distance Pass - Z-112 - Z-112 - Z-112 2,301.50 257.27 2,301.50 238.80 2,197.69 13.930 Ellipse Separation Pass - Z-112 - Z-112 - Z-112 2,304.27 257.26 2,304.27 238.81 2,200.23 13.940 Centre Distance Pass - Z-112 - Z-112 - Z-112 4,776.50 547.81 4,776.50 481.40 4,322.06 8.249 Clearance Factor Pass - Z-112 - Z-112PB1 - Z-112PB1 2,301.50 257.27 2,301.50 238.80 2,197.69 13.930 Ellipse Separation Pass - Z-112 - Z-112PB1 - Z-112PB1 2,304.27 257.26 2,304.27 238.81 2,200.23 13.940 Centre Distance Pass - Z-112 - Z-112PB1 - Z-112PB1 4,776.50 547.81 4,776.50 481.40 4,322.06 8.249 Clearance Factor Pass - Z-112 - Z-112PB2 - Z-112PB2 2,301.50 257.27 2,301.50 238.80 2,197.69 13.930 Ellipse Separation Pass - Z-112 - Z-112PB2 - Z-112PB2 2,304.27 257.26 2,304.27 238.81 2,200.23 13.940 Centre Distance Pass - Z-112 - Z-112PB2 - Z-112PB2 4,776.50 547.81 4,776.50 481.40 4,322.06 8.249 Clearance Factor Pass - Z-113 - Z-113 - Z-113 279.91 179.27 279.91 175.26 288.14 44.658 Centre Distance Pass - Z-113 - Z-113 - Z-113 301.50 179.39 301.50 175.12 309.85 42.011 Ellipse Separation Pass - Z-113 - Z-113 - Z-113 626.50 216.41 626.50 208.35 616.15 26.864 Clearance Factor Pass - 01 December, 2021 - 16:59 Page 3 of 10 COMPASS HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Hilcorp North Slope, LLC Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-113 - Z-113PB1 - Z-113PB1 279.91 179.27 279.91 175.26 288.14 44.658 Centre Distance Pass - Z-113 - Z-113PB1 - Z-113PB1 301.50 179.39 301.50 175.12 309.85 42.011 Ellipse Separation Pass - Z-113 - Z-113PB1 - Z-113PB1 626.50 216.41 626.50 208.35 616.15 26.864 Clearance Factor Pass - Z-115 - Z-115 - Z-115 26.50 170.58 26.50 169.01 34.04 108.796 Centre Distance Pass - Z-115 - Z-115 - Z-115 301.50 170.84 301.50 166.61 308.09 40.418 Ellipse Separation Pass - Z-115 - Z-115 - Z-115 576.50 211.83 576.50 204.52 552.14 28.991 Clearance Factor Pass - Z-116 - Z-116 - Z-116 562.74 725.81 562.74 718.13 556.37 94.471 Centre Distance Pass - Z-116 - Z-116 - Z-116 626.50 726.27 626.50 717.74 610.80 85.170 Ellipse Separation Pass - Z-116 - Z-116 - Z-116 1,101.50 768.89 1,101.50 754.14 971.87 52.129 Clearance Factor Pass - Z-12 - Z-12 - Z-12 5,874.15 150.03 5,874.15 106.68 4,953.86 3.461 Centre Distance Pass - Z-12 - Z-12 - Z-12 5,901.50 152.36 5,901.50 106.26 4,944.30 3.305 Clearance Factor Pass - Z-13 - Z-13 - Z-13 1,128.32 236.51 1,128.32 227.44 1,104.45 26.073 Ellipse Separation Pass - Z-13 - Z-13 - Z-13 1,176.50 237.80 1,176.50 228.59 1,145.23 25.844 Clearance Factor Pass - Z-13 - Z-13A - Z-13A 1,128.32 236.51 1,128.32 227.44 1,095.47 26.073 Ellipse Separation Pass - Z-13 - Z-13A - Z-13A 1,176.50 237.80 1,176.50 228.59 1,136.25 25.844 Clearance Factor Pass - Z-13-Z-13APB1-Z-13APB1 1,128.32 236.51 1,128.32 227.44 1,095.47 26.073 Ellipse Separation Pass - Z-13-Z-13APB1 - Z-13APB1 1,176.50 237.80 1,176.50 228.59 1,136.25 25.844 Clearance Factor Pass - Z-14 - Z-14 - Z-14 1,084.10 206.74 1,084.10 191.70 1,066.73 13.749 Centre Distance Pass - Z-14 - Z-14 - Z-14 1,101.50 206.90 1,101.50 191.68 1,082.04 13.595 Ellipse Separation Pass - Z-14-Z-14-Z-14 1,176.50 211.55 1,176.50 195.78 1,147.02 13.412 Clearance Factor Pass - Z-14 - Z-14A - Z-14A 1,084.10 206.74 1,084.10 191.70 1,066.73 13.749 Centre Distance Pass - Z-14 - Z-14A - Z-14A 1,101.50 206.90 1,101.50 191.68 1,082.04 13.595 Ellipse Separation Pass - Z-14 - Z-14A - Z-14A 1,176.50 211.55 1,176.50 195.78 1,147.02 13.412 Clearance Factor Pass - Z-14 - Z-14B - Z-14B 1,084.10 206.74 1,084.10 191.70 1,057.25 13.749 Centre Distance Pass - Z-14-Z-14B-Z-14B 1,101.50 206.90 1,101.50 191.68 1,072.56 13.595 Ellipse Separation Pass - Z-14 - Z-14B - Z-14B 1,176.50 211.55 1,176.50 195.78 1,137.54 13.412 Clearance Factor Pass - Z-15 - Z-15 - Z-15 1,017.44 186.60 1,017.44 177.96 1,004.91 21.595 Centre Distance Pass - Z-15 - Z-15 - Z-15 1,026.50 186.64 1,026.50 177.95 1,013.10 21.477 Ellipse Separation Pass - Z-15 - Z-1 5 - Z-15 1,101.50 190.18 1,101.50 181.14 1,079.86 21.036 Clearance Factor Pass- Z-15 - Z-1 5A - Z-1 5A 1,017.44 186.60 1,017.44 177.96 1,004.91 21.595 Centre Distance Pass - 01 December, 2021 - 16:59 Page 4 of 10 COMPASS HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Hilcorp North Slope, LLC Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-1 5 - Z-1 5A - Z-1 5A 1,026.50 186.64 1,026.50 177.95 1,013.10 21.477 Ellipse Separation Pass - Z-15 - Z-15A - Z-15A 1,101.50 190.18 1,101.50 181.14 1,079.86 21.036 Clearance Factor Pass - Z-15-Z-15APB1-Z-15APB1 1,017.44 186.60 1,017.44 177.96 1,004.91 21.595 Centre Distance Pass - Z-15-Z-15APB1 -Z-15APB1 1,026.50 186.64 1,026.50 177.95 1,013.10 21.477 Ellipse Separation Pass - Z-15-Z-15APB1 -Z-15APB1 1,101.50 190.18 1,101.50 181.14 1,079.86 21.036 Clearance Factor Pass - Z-15 - Z-15AP62 - Z-15AP132 1,017.44 186.60 1,017.44 177.96 1,004.91 21.595 Centre Distance Pass - Z-15 - Z-15APB2 - Z-15APB2 1,026.50 186.64 1,026.50 177.95 1,013.10 21.477 Ellipse Separation Pass - Z-15 - Z-15APB2 - Z-15APB2 1,101.50 190.18 1,101.50 181.14 1,079.86 21.036 Clearance Factor Pass - Z-16 - Z-16 - Z-16 1,176.50 91.15 1,176.50 82.55 1,181.69 10.597 Clearance Factor Pass - Z-16 - Z-16 - Z-16 1,201.50 90.56 1,201.50 82.11 1,206.51 10.714 Ellipse Separation Pass - Z-16 - Z-16 - Z-16 1,203.36 90.55 1,203.36 82.11 1,208.29 10.724 Centre Distance Pass - Z-16 - Z-16A - Z-16A 1,176.50 91.15 1,176.50 82.55 1,181.69 10.597 Clearance Factor Pass - Z-16 - Z-16A - Z-16A 1,201.50 90.56 1,201.50 82.11 1,206.51 10.714 Ellipse Separation Pass - Z-16 - Z-16A - Z-16A 1,203.36 90.55 1,203.36 82.11 1,208.29 10.724 Centre Distance Pass - Z-17 - Z-17 - Z-17 907.57 129.35 907.57 121.83 904.67 17.207 Centre Distance Pass - Z-17 - Z-17 - Z-17 926.50 129.51 926.50 121.80 922.29 16.782 Ellipse Separation Pass - Z-17 - Z-17 - Z-17 1,001.50 133.73 1,001.50 125.30 991.91 15.856 Clearance Factor Pass - Z-17 - Z-17A - Z-17A 907.57 129.35 907.57 121.83 904.67 17.207 Centre Distance Pass - Z-17 - Z-17A - Z-17A 926.50 129.51 926.50 121.80 922.29 16.782 Ellipse Separation Pass - Z-17 - Z-17A - Z-17A 1,001.50 133.73 1,001.50 125.30 991.91 15.856 Clearance Factor Pass - Z-17 - Z-17APB1 - Z-17APB1 907.57 129.35 907.57 121.83 904.67 17.207 Centre Distance Pass - Z-17 - Z-17APB1 - Z-17APB1 926.50 129.51 926.50 121.80 922.29 16.782 Ellipse Separation Pass - Z-17 - Z-17APB1 - Z-17APB1 1,001.50 133.73 1,001.50 125.30 991.91 15.856 Clearance Factor Pass - Z-18 - Z-18 - Z-18 911.13 93.18 911.13 85.80 918.49 12.629 Ellipse Separation Pass - Z-18 - Z-18 - Z-18 976.50 95.61 976.50 87.80 982.01 12.232 Clearance Factor Pass - Z-19 - Z-19 - Z-19 610.28 80.74 610.28 75.94 611.83 16.833 Centre Distance Pass - Z-19 - Z-19 - Z-19 626.50 80.85 626.50 75.92 627.42 16.415 Ellipse Separation Pass - Z-19 - Z-19 - Z-19 701.50 85.10 701.50 79.59 697.90 15.455 Clearance Factor Pass - Z-19 - Z-19A - Z-19A 610.28 80.74 610.28 75.94 607.49 16.833 Centre Distance Pass - Z-19 - Z-19A - Z-19A 626.50 80.85 626.50 75.92 623.08 16.415 Ellipse Separation Pass - 01 December, 2021 - 16:59 Page 5 of 10 COMPASS Hilcorp North Slope, LLC HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-19 - Z-19A - Z-19A 701.50 85.10 701.50 79.59 693.56 15.455 Clearance Factor Pass - Z-20 - Z-20 - Z-20 628.31 47.28 628.31 40.82 635.02 7.325 Centre Distance Pass - Z-20 - Z-20 - Z-20 651.50 47.47 651.50 40.77 657.82 7.093 Ellipse Separation Pass - Z-20 - Z-20 - Z-20 701.50 49.41 701.50 42.22 706.79 6.876 Clearance Factor Pass - Z-23 - Z-23 - Z-23 26.50 466.16 26.50 464.59 36.38 297.315 Centre Distance Pass - Z-23 - Z-23 - Z-23 651.50 467.39 651.50 460.71 659.84 70.043 Ellipse Separation Pass - Z-23 - Z-23 - Z-23 6,125.00 912.89 6,125.00 848.85 4,717.74 14.254 Clearance Factor Pass - Z-23 - Z-23A - Z-23A 26.50 466.16 26.50 464.59 25.68 297.315 Centre Distance Pass - Z-23 - Z-23A - Z-23A 651.50 467.39 651.50 460.71 649.14 70.043 Ellipse Separation Pass - Z-23 - Z-23A - Z-23A 6,125.00 912.89 6,125.00 848.85 4,707.04 14.254 Clearance Factor Pass - Z-23 - Z-23B - Z-23B 26.50 466.16 26.50 464.59 25.70 297.315 Centre Distance Pass - Z-23 - Z-23B - Z-23B 651.50 467.39 651.50 460.71 649.16 70.043 Ellipse Separation Pass - Z-23 - Z-23B - Z-23B 6,125.00 912.89 6,125.00 848.85 4,707.06 14.254 Clearance Factor Pass - Z-23 - Z-23C - Z-23C 26.50 466.16 26.50 464.59 25.70 297.315 Centre Distance Pass - Z-23 - Z-23C - Z-23C 651.50 467.39 651.50 460.71 649.16 70.043 Ellipse Separation Pass - Z-23 - Z-23C - Z-23C 6,125.00 912.89 6,125.00 848.85 4,707.06 14.254 Clearance Factor Pass - Z-26 - Z-26 - Z-26 331.07 382.10 331.07 379.05 339.58 125.100 Centre Distance Pass - Z-26 - Z-26 - Z-26 401.50 382.31 401.50 378.83 409.87 109.833 Ellipse Separation Pass - Z-26 - Z-26 - Z-26 6,125.00 1,306.48 6,125.00 1,268.36 4,131.23 34.276 Clearance Factor Pass - Z-26 - Z-26A - Z-26A 331.07 382.10 331.07 379.05 339.58 125.100 Centre Distance Pass - Z-26 - Z-26A - Z-26A 401.50 382.31 401.50 378.83 409.87 109.833 Ellipse Separation Pass - Z-26 - Z-26A - Z-26A 6,125.00 1,306.48 6,125.00 1,268.36 4,131.23 34.276 Clearance Factor Pass - Z-34 - Z-34 - Z-34 356.39 274.15 356.39 269.40 376.07 57.787 Centre Distance Pass - Z-34 - Z-34 - Z-34 376.50 274.23 376.50 269.34 395.44 56.007 Ellipse Separation Pass - Z-34 - Z-34 - Z-34 6,125.00 540.69 6,125.00 489.03 4,544.74 10.467 Clearance Factor Pass - Z-39 - Z-39 - Z-39 1,342.61 285.25 1,342.61 274.16 1,289.91 25.725 Centre Distance Pass - Z-39 - Z-39 - Z-39 1,351.50 285.30 1,351.50 274.16 1,297.14 25.609 Ellipse Separation Pass - Z-39 - Z-39 - Z-39 6,125.00 644.08 6,125.00 591.65 4,689.77 12.284 Clearance Factor Pass - Z-39 - Z-39A - Z-39A 1,342.61 285.25 1,342.61 274.16 1,289.91 25.725 Centre Distance Pass - Z-39 - Z-39A - Z-39A 1,351.50 285.30 1,351.50 274.16 1,297.14 25.609 Ellipse Separation Pass - Z-39 - Z-39A- Z-39A 6,125.00 644.08 6,125.00 591.65 4,689.77 12.284 Clearance Factor Pass - 01 December, 2021 - 16:59 Page 6 of 10 COMPASS HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Hilcorp North Slope, LLC Prudhoe Bay Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-40 - Z-40 - Z-40 360.70 134.56 360.70 129.72 370.86 27.787 Centre Distance Pass - Z-40 - Z-40 - Z-40 376.50 134.62 376.50 129.59 386.35 26.759 Ellipse Separation Pass - Z-40 - Z-40 - Z-40 5,726.50 625.18 5,726.50 559.56 4,815.20 9.527 Clearance Factor Pass - Z-46 - Z-46 - Z-46 888.08 57.23 888.08 49.31 876.53 7.225 Clearance Factor Pass - Z-46 - Z-46A - Z-46A 888.08 57.23 888.08 49.31 876.53 7.225 Clearance Factor Pass - Z-50 - Z-50 - Z-50 26.50 14.98 26.50 13.57 33.55 10.609 Centre Distance Pass - Z-50 - Z-50 - Z-50 201.50 15.54 201.50 12.55 208.37 5.205 Ellipse Separation Pass - Z-50 - Z-50 - Z-50 526.50 21.59 526.50 14.64 532.85 3.105 Clearance Factor Pass - Z-61 - Z-61 - Z-61 158.32 162.24 158.32 159.60 171.76 61.441 Centre Distance Pass - Z-61 - Z-61 - Z-61 176.50 162.32 176.50 159.49 188.39 57.345 Ellipse Separation Pass - Z-61 - Z-61 - Z-61 676.50 217.33 676.50 208.63 671.51 24.989 Clearance Factor Pass - Z-61 - Z-61 P131 - Z-61 P131 158.32 162.24 158.32 159.60 171.76 61.441 Centre Distance Pass - Z-61 - Z-61 PB1 - Z-61 P131 176.50 162.32 176.50 159.49 188.39 57.345 Ellipse Separation Pass - Z-61 - Z-61 P131 - Z-61 P131 676.50 217.33 676.50 208.63 671.51 24.989 Clearance Factor Pass - Z-65 - Z-65 - Z-65 26.50 60.02 26.50 58.60 33.23 42.514 Centre Distance Pass - Z-65 - Z-65 - Z-65 426.50 61.55 426.50 55.91 435.48 10.916 Ellipse Separation Pass - Z-65 - Z-65 - Z-65 5,651.50 228.75 5,651.50 165.73 4,791.13 3.630 Clearance Factor Pass - Z-65 - Z-65PB1 - Z-65PB1 26.50 60.02 26.50 58.60 33.23 42.514 Centre Distance Pass - Z-65 - Z-65PB1 - Z-65PB1 426.50 61.55 426.50 55.91 435.48 10.916 Ellipse Separation Pass - Z-65 - Z-65PB1 - Z-65PB1 5,651.50 228.75 5,651.50 165.73 4,791.13 3.630 Clearance Factor Pass - Z-66 - Z-66 - Z-66 189.27 14.78 189.27 11.89 202.77 5.110 Centre Distance Pass - Z-66 - Z-66 - Z-66 251.50 15.19 251.50 11.58 264.80 4.210 Ellipse Separation Pass - Z-66 - Z-66 - Z-66 301.50 16.02 301.50 12.05 314.82 4.036 Clearance Factor Pass - Z-66 - Z-66PB1 - Z-66PB1 189.27 14.78 189.27 11.89 202.77 5.110 Centre Distance Pass - Z-66 - Z-66PB1 - Z-66PB1 251.50 15.19 251.50 11.58 264.80 4.210 Ellipse Separation Pass - Z-66 - Z-66PB1 - Z-66PB1 301.50 16.02 301.50 12.05 314.82 4.036 Clearance Factor Pass - Z-69 - Z-69 - Z-69 284.36 210.33 284.36 206.49 298.88 54.715 Centre Distance Pass - Z-69 - Z-69 - Z-69 301.50 210.42 301.50 206.38 315.70 52.037 Ellipse Separation Pass - Z-69 - Z-69 - Z-69 6,125.00 508.08 6,125.00 470.85 4,603.89 13.646 Clearance Factor Pass - Z-70 - Z-70 - Z-70 304.28 73.43 304.28 69.23 325.43 17.475 Centre Distance Pass - 01 December, 2021 - 16:59 Page 7 of 10 COMPASS HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Hilcorp North Slope, LLC Prudhoe Bay Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 26.50 to 6,125.00 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-70 - Z-70 - Z-70 351.50 73.81 351.50 69.04 372.51 15.483 Ellipse Separation Pass - Z-70 - Z-70 - Z-70 676.50 98.48 676.50 89.59 694.05 11.075 Clearance Factor Pass - Survey tool program From To Survey/Plan Survey Tool (usft) (usft) 26.50 1,000.00 Z-220 wp08a 3_Gyro-MWD90+Sag 1,000.00 6,124.00 Z-220 wp08a 3_MWD+IFR2+MS+Sag 6,124.00 18,383.58 Z-220 wp08a 3_MWD+IFR2+MS+Sag Ellipse error terms are correlated across survey tool tie -on points. Calculated ellipses incorporate surface errors. Separation is the actual distance between ellipsoids. Distance Between centres is the straight line distance between wellbore centres. Clearance Factor = Distance Between Profiles / (Distance Between Profiles - Ellipse Separation). All station coordinates were calculated using the Minimum Curvature method. 01 December, 2021 - 16:59 Page 8 of 10 COMPASS HALLIBURTIDN Project: Prudhoe Bay REFERENCE INFORMATION WELL DETAKS:Plan: Z-220 NAD 1927 (NADCON CONUS) Alaska Zone 04 Site: Z Co-ordinate (N/E) Reference: Well Plan: Z-220, True North - Vertical (TVD) Reference: Z-220 IRIG Planned RKB 9parry Drilling Well: Plan: Z-220 Measured Depth Reference: Z-2201RIG Planned RKB @ 82.60usft 56.10 @82.60usft +N/-S +EJ-W Northing Fasting Latitude Longitude Calculation Method: Minimum Curvature Wellbore: Z-220 0.00 0.00 5959100.12 599846.00 70° 1T 51.6336 N 149° 11' 29.1546 W Plan: Z-220 wp08a SURVEY PROGRAM NO GLOBAL FILTER: Using user defined selection & filtering criteria EDepth Date: 2021-09-30T00:00:00 Validated: Yes Version: 26.50 To 18383.58 From Depth To Survey/Plan 26.50 1000.00 Z-220 H(Z-220) Ladder / S.F. Plots Tool 3Gyro-MWD90+Sag CASING DETARS _p08a 1000.00 6124.00 Z-220 Hp08a (Z-220) 1 2 6124.00 18383.58 Z-220 vp08a (Z-220) 3_MWD+IFR2+MS+Sag 3_MWD+IFR2+MS+Sag TVD TVDSS MD Size Name of 4709.80 4627.20 6124.00 9-5/8 9 5/8" x 12 1/4" 4932.60 4850.00 18383.58 6-5/8 6 5/8" x 8 1/2" 180.00 Z-1 y350.00 rn 0 Z-4 Z-18 o 920.00 .2 Z-4 6 Q90.00 (n Z-19 Z-7 aa) 60.00, (� Z-65 $ Z-20 N Z-221 05 11 30.00 N U Z-66 Z-50� 0.00 325 650 975 1300 1625 1950 2275 2600 2925 3250 3575 3900 4225 4550 4875 5200 5525 5850 6175 Measured Depth (650 usft/in) 0 4.00 0 i5 3.00 co IL Collision Risk Procedures R o - 2.00 - ' Q m Collision Avoidance Requir - U) 1.00 - No-G0 Zone Stop Drill' 0.00 325 650 975 1300 1625 1950 2275 2600 2925 3250 3575 3900 4225 4550 4875 5200 5525 5850 6175 Measured Depth (650 usft/in) Hilcorp North Slope, LLC Prudhoe Bay Z Plan: Z-220 Z-220 50029xxxxx Z-220 wp08a Sperry Drilling Services Clearance Summary Anticollision Report 01 December, 2021 Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Well Coordinates: 5,959,100.12 N, 599,846.00 E (70' 17' 51.63" N, 149° 11' 29.15" W) Datum Height: Z-220 IRIG Planned RKB @ 82.60usft Scan Range: 6,125.00 to 18,383.58 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Geodetic Scale Factor Applied Version: 5000.15 Build: 91E Scan Type: • • = Scan Type: 25.00 HALLIBURTON Sperry Drilling Services Hilcorp North Slope, LLC HALLiBURTION Prudhoe Bay Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 6,125.00 to 18,383.58 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft EX HIGHLANDST HIGHLANDST - HIGHLANDST - HIGHLANDST - Z Plan: Z-221 - Z-221 - Z-221 wp05 9,656.26 1,013.80 9,656.26 902.35 10,226.57 9.097 Centre Distance Pass - Plan: Z-221 - Z-221 - Z-221 wp05 17,200.00 1,047.68 17,200.00 769.21 17,826.80 3.762 Ellipse Separation Pass - Plan: Z-221 - Z-221 - Z-221 wp05 17,275.00 1,050.05 17,275.00 770.43 17,886.59 3.755 Clearance Factor Pass - Z-01 - Z-01 - Z-01 6,125.00 703.55 6,125.00 665.07 4,697.62 18.285 Clearance Factor Pass - Z-01 - Z-01A - Z-01A 6,125.00 703.55 6,125.00 665.07 4,697.62 18.285 Clearance Factor Pass - Z-01 - Z-01APB1 - Z-01APB1 6,125.00 703.55 6,125.00 665.07 4,697.62 18.285 Clearance Factor Pass - Z-01 - Z-01APB2 - Z-01AP132 6,125.00 703.55 6,125.00 665.07 4,697.62 18.285 Clearance Factor Pass - Z-01 - Z-01 B - Z-01 B 6,125.00 703.55 6,125.00 665.07 4,697.62 18.285 Clearance Factor Pass - Z-02 - Z-02 - Z-02 6,125.00 766.68 6,125.00 721.71 4,728.95 17.050 Clearance Factor Pass - Z-02 - Z-02A - Z-02A 6,125.00 766.68 6,125.00 721.56 4,721.43 16.991 Clearance Factor Pass - Z-03 - Z-03 - Z-03 6,125.00 386.62 6,125.00 330.54 4,817.91 6.894 Clearance Factor Pass - Z-03 - Z-03A- Z-03A 6,125.00 386.62 6,125.00 330.73 4,817.91 6.917 Clearance Factor Pass - Z-100 - Z-100 - Z-100 7,517.12 500.19 7,517.12 424.12 4,849.57 6.575 Clearance Factor Pass - Z-103 - Z-103 - Z-103 6,462.65 274.57 6,462.65 220.79 4,851.06 5.106 Centre Distance Pass - Z-103 - Z-103 - Z-103 6,475.00 274.84 6,475.00 220.51 4,852.21 5.058 Ellipse Separation Pass - Z-103 - Z-103 - Z-103 6,550.00 288.02 6,550.00 229.13 4,859.16 4.891 Clearance Factor Pass - Z-103 - Z-103PB1 - Z-103PB1 6,462.65 274.57 6,462.65 220.72 4,851.06 5.099 Centre Distance Pass - Z-103 - Z-103PB1 - Z-103PB1 6,475.00 274.84 6,475.00 220.43 4,852.21 5.051 Ellipse Separation Pass - Z-103 - Z-103PB1 - Z-103PB1 6,550.00 288.02 6,550.00 229.05 4,859.16 4.885 Clearance Factor Pass - Z-103 - Z-103PB2 - Z-103PB2 6,462.65 274.57 6,462.65 220.79 4,851.06 5.106 Centre Distance Pass - Z-103 - Z-103PB2 - Z-103PB2 6,475.00 274.84 6,475.00 220.51 4,852.21 5.058 Ellipse Separation Pass - Z-103 - Z-103PB2 - Z-103PB2 6,550.00 288.02 6,550.00 229.13 4,859.16 4.891 Clearance Factor Pass - Z-108 - Z-108 - Z-108 6,125.00 1,458.32 6,125.00 1,411.06 4,505.48 30.857 Clearance Factor Pass - Z-11 - Z-11 - Z-11 6,125.00 349.53 6,125.00 317.30 4,783.39 10.844 Clearance Factor Pass - Z-11 - Z-11A- Z-11A 6,125.00 349.53 6,125.00 317.30 4,783.39 10.844 Clearance Factor Pass - 01 December, 2021 - 17:00 Page 2 of 8 COMPASS Hilcorp North Slope, LLC HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 6,125.00 to 18,383.58 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-112 - Z-112 - Z-112 6,125.00 1,096.38 6,125.00 1,040.44 5,301.33 19.597 Clearance Factor Pass - Z-1 12 - Z-1 1 2PI31 -Z-112PI31 6,125.00 1,096.38 6,125.00 1,040.44 5,301.33 19.597 Clearance Factor Pass - Z-112 - Z-112PI32 - Z-112PI32 6,125.00 1,096.38 6,125.00 1,040.44 5,301.33 19.597 Clearance Factor Pass - Z-113 - Z-113 - Z-113 11,225.00 839.34 11,225.00 673.80 6,614.93 5.071 Clearance Factor Pass - Z-113 - Z-113 - Z-113 11,325.00 832.02 11,325.00 670.03 6,669.71 5.136 Ellipse Separation Pass - Z-113 - Z-113 - Z-113 11,364.83 831.37 11,364.83 671.30 6,691.11 5.194 Centre Distance Pass - Z-113 - Z-113PB1 - Z-113PB1 11,225.00 839.34 11,225.00 673.80 6,614.93 5.071 Clearance Factor Pass - Z-113 - Z-113PB1 - Z-113PB1 11,325.00 832.02 11,325.00 670.03 6,669.71 5.136 Ellipse Separation Pass - Z-113 - Z-113PB1 - Z-113PB1 11,364.83 831.37 11,364.83 671.30 6,691.11 5.194 Centre Distance Pass - Z-115 - Z-115 - Z-115 13,475.00 574.62 13,475.00 358.71 8,563.20 2.661 Clearance Factor Pass - Z-115 - Z-115 - Z-115 13,600.00 548.02 13,600.00 349.19 8,636.04 2.756 Ellipse Separation Pass - Z-115 - Z-115 - Z-115 13,720.10 537.76 13,720.10 359.97 8,708.88 3.025 Centre Distance Pass - Z-116 - Z-116 - Z-116 11,160.91 1,464.26 11,160.91 1,389.77 6,573.45 19.659 Centre Distance Pass - Z-116 - Z-116 - Z-116 11,600.00 1,485.32 11,600.00 1,371.76 6,839.64 13.080 Ellipse Separation Pass - Z-116 - Z-116 - Z-116 11,700.00 1,496.67 11,700.00 1,373.67 6,886.78 12.168 Clearance Factor Pass - Z-12 - Z-12 - Z-12 6,125.00 280.49 6,125.00 234.94 4,855.18 6.157 Clearance Factor Pass - Z-13 - Z-13 - Z-13 6,801.22 982.99 6,801.22 930.90 4,430.48 18.872 Centre Distance Pass - Z-13 - Z-13 - Z-13 6,825.00 983.22 6,825.00 930.79 4,439.38 18.752 Ellipse Separation Pass - Z-13 - Z-13 - Z-13 7,075.00 1,013.03 7,075.00 957.39 4,542.64 18.205 Clearance Factor Pass - Z-13 - Z-13A - Z-13A 6,801.22 982.99 6,801.22 930.90 4,421.50 18.873 Centre Distance Pass - Z-13 - Z-13A - Z-13A 6,825.00 983.22 6,825.00 930.79 4,430.40 18.753 Ellipse Separation Pass - Z-13 - Z-13A - Z-13A 7,075.00 1,013.03 7,075.00 957.39 4,533.66 18.206 Clearance Factor Pass - Z-13 - Z-13AP131 - Z-13APB1 6,801.22 982.99 6,801.22 930.90 4,421.50 18.873 Centre Distance Pass - Z-13 - Z-13AP131 - Z-13APB1 6,825.00 983.22 6,825.00 930.79 4,430.40 18.753 Ellipse Separation Pass - Z-13 - Z-13AP131 - Z-13APB1 7,075.00 1,013.03 7,075.00 957.39 4,533.66 18.206 Clearance Factor Pass - Z-14 - Z-14 - Z-14 7,263.69 525.92 7,263.69 415.10 4,989.86 4.746 Centre Distance Pass - Z-14 - Z-14 - Z-14 7,275.00 526.00 7,275.00 415.00 4,996.26 4.739 Ellipse Separation Pass - Z-14 - Z-14 - Z-14 7,300.00 526.77 7,300.00 415.46 5,010.29 4.732 Clearance Factor Pass - Z-14 - Z-14A - Z-14A 7,263.69 525.92 7,263.69 415.10 4,989.86 4.746 Centre Distance Pass - Z-14 - Z-14A - Z-14A 7,275.00 526.00 7,275.00 415.00 4,996.26 4.739 Ellipse Separation Pass - Z-14 - Z-14A - Z-14A 7,300.00 526.77 7,300.00 415.46 5,010.29 4.732 Clearance Factor Pass - 01 December, 2021 - 17:00 Page 3 of 8 COMPASS Hilcorp North Slope, LLC HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 6,125.00 to 18,383.58 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-14 - Z-14B - Z-14B 7,263.69 525.92 7,263.69 415.10 4,980.38 4.746 Centre Distance Pass - Z-14 - Z-14B - Z-14B 7,275.00 526.00 7,275.00 415.00 4,986.78 4.739 Ellipse Separation Pass - Z-14 - Z-14B - Z-14B 7,300.00 526.77 7,300.00 415.46 5,000.81 4.732 Clearance Factor Pass - Z-15 - Z-15 - Z-15 9,225.00 136.72 9,225.00 21.80 5,926.38 1.190 Clearance Factor Pass - Z-15 - Z-15 - Z-15 9,316.33 118.10 9,316.33 50.31 5,982.63 1.742 Centre Distance Pass - Z-15 - Z-15A - Z-15A 9,225.00 136.72 9,225.00 21.80 5,926.38 1.190 Clearance Factor Pass - Z-15 - Z-15A- Z-15A 9,316.33 118.10 9,316.33 50.31 5,982.63 1.742 Centre Distance Pass - Z-15 - Z-15APB1 - Z-15APB1 9,225.00 136.72 9,225.00 21.80 5,926.38 1.190 Clearance Factor Pass - Z-15 - Z-15APB1 - Z-15APB1 9,316.33 118.10 9,316.33 50.31 5,982.63 1.742 Centre Distance Pass - Z-15 - Z-15APB2 - Z-15APB2 9,225.00 136.72 9,225.00 21.80 5,926.38 1.190 Clearance Factor Pass - Z-15 - Z-15APB2 - Z-15APB2 9,316.33 118.10 9,316.33 50.31 5,982.63 1.742 Centre Distance Pass - Z-17 - Z-17 - Z-17 6,125.00 1,406.55 6,125.00 1,367.45 4,194.16 35.968 Clearance Factor Pass - Z-17 - Z-17A - Z-17A 6,125.00 1,406.55 6,125.00 1,367.45 4,194.16 35.968 Clearance Factor Pass - Z-17-Z-17APB1-Z-17APB1 6,125.00 1,406.55 6,125.00 1,367.45 4,194.16 35.968 Clearance Factor Pass - Z-19 - Z-19A - Z-19A 12,929.15 1,398.37 12,929.15 1,168.56 8,161.49 6.085 Clearance Factor Pass - Z-20 - Z-20 - Z-20 7,300.40 82.70 7,300.40 26.86 4,975.90 1.481 Centre Distance Pass - Z-20 - Z-20 - Z-20 7,325.00 84.99 7,325.00 21.92 4,990.76 1.347 Clearance Factor Pass - Z-23 - Z-23 - Z-23 6,487.59 846.59 6,487.59 779.92 4,720.70 12.699 Clearance Factor Pass - Z-23 - Z-23A - Z-23A 6,487.59 846.59 6,487.59 779.92 4,710.00 12.699 Clearance Factor Pass - Z-23 - Z-23B - Z-23B 6,487.59 846.59 6,487.59 779.92 4,710.02 12.699 Clearance Factor Pass - Z-23 - Z-23C - Z-23C 6,487.59 846.59 6,487.59 779.92 4,710.02 12.699 Clearance Factor Pass - Z-26 - Z-26 - Z-26 7,562.35 822.64 7,562.35 752.10 5,005.20 11.663 Centre Distance Pass - Z-26 - Z-26 - Z-26 7,600.00 823.02 7,600.00 751.68 5,033.42 11.537 Ellipse Separation Pass - Z-26 - Z-26 - Z-26 7,850.00 843.46 7,850.00 767.94 5,222.64 11.168 Clearance Factor Pass - Z-26 - Z-26A - Z-26A 7,562.35 822.64 7,562.35 752.10 5,005.20 11.663 Centre Distance Pass - Z-26 - Z-26A - Z-26A 7,600.00 823.02 7,600.00 751.68 5,033.42 11.537 Ellipse Separation Pass - Z-26 - Z-26A - Z-26A 7,850.00 843.46 7,850.00 767.94 5,222.64 11.168 Clearance Factor Pass - Z-34 - Z-34 - Z-34 6,225.00 518.18 6,225.00 467.04 4,550.86 10.132 Clearance Factor Pass - Z-34 - Z-34 - Z-34 6,268.56 515.84 6,268.56 465.21 4,553.18 10.188 Ellipse Separation Pass - Z-39 - Z-39 - Z-39 6,552.82 478.79 6,552.82 420.72 4,767.24 8.245 Centre Distance Pass - 01 December, 2021 - 17:00 Page 4 of 8 COMPASS Hilcorp North Slope, LLC HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference) Reference Design: Z - Plan: Z-220 - Z-220 - Z-220 wp08a Scan Range: 6,125.00 to 18,383.58 usft. Measured Depth. Scan Radius is Unlimited. Clearance Factor cutoff is Unlimited. Max Ellipse Separation is Unlimited Prudhoe Bay Measured Minimum @Measured Ellipse @Measured Clearance Summary Based on Site Name Depth Distance Depth Separation Depth Factor Minimum Separation Warning Comparison Well Name - Wellbore Name - Design (usft) (usft) (usft) (usft) usft Z-39 - Z-39 - Z-39 6,575.00 479.29 6,575.00 420.13 4,771.13 8.101 Ellipse Separation Pass - Z-39 - Z-39 - Z-39 6,725.00 507.91 6,725.00 441.23 4,797.16 7.617 Clearance Factor Pass - Z-39 - Z-39A - Z-39A 6,552.82 478.79 6,552.82 420.72 4,767.24 8.245 Centre Distance Pass - Z-39 - Z-39A - Z-39A 6,575.00 479.29 6,575.00 420.13 4,771.13 8.101 Ellipse Separation Pass - Z-39 - Z-39A - Z-39A 6,725.00 507.91 6,725.00 441.23 4,797.16 7.617 Clearance Factor Pass - Z-40 - Z-40 - Z-40 6,125.00 675.88 6,125.00 623.57 4,772.47 12.919 Clearance Factor Pass - Z-50 - Z-50 - Z-50 6,125.00 264.86 6,125.00 206.99 4,749.54 4.577 Ellipse Separation Pass - Z-50 - Z-50 - Z-50 6,150.00 266.02 6,150.00 207.89 4,749.48 4.576 Clearance Factor Pass - Z-61 - Z-61 - Z-61 13,375.00 1,077.50 13,375.00 834.06 8,389.54 4.426 Clearance Factor Pass - Z-61 - Z-61 - Z-61 13,425.00 1,076.45 13,425.00 833.49 8,429.90 4.431 Ellipse Separation Pass - Z-61 - Z-61 - Z-61 13,478.61 1,076.08 13,478.61 833.86 8,473.47 4.443 Centre Distance Pass - Z-65 - Z-65 - Z-65 6,125.00 530.42 6,125.00 488.25 4,751.95 12.579 Clearance Factor Pass - Z-65 - Z-65PI31 - Z-65PI31 6,125.00 530.42 6,125.00 488.25 4,751.95 12.579 Clearance Factor Pass - Z-69 - Z-69 - Z-69 6,489.26 394.63 6,489.26 341.50 4,743.26 7.428 Centre Distance Pass - Z-69 - Z-69 - Z-69 6,500.00 394.74 6,500.00 341.27 4,747.59 7.382 Ellipse Separation Pass - Z-69 - Z-69 - Z-69 6,550.00 398.33 6,550.00 343.50 4,767.93 7.265 Clearance Factor Pass - Survey tool program From To Survey/Plan Survey Tool (usft) (usft) 26.50 1,000.00 Z-220 wp08a 3_Gyro-MWD90+Sag 1,000.00 6,124.00 Z-220 wp08a 3_MWD+IFR2+MS+Sag 6,124.00 18,383.58 Z-220 wp08a 3_MWD+IFR2+MS+Sag 01 December, 2021 - 17:00 Page 5 of 8 COMPASS Hilcorp North Slope, LLC HALLiBURTON Anticollision Report for Plan: Z-220 - Z-220 wp08a Ellipse error terms are correlated across survey tool tie -on points. Calculated ellipses incorporate surface errors. Separation is the actual distance between ellipsoids. Distance Between centres is the straight line distance between wellbore centres. Clearance Factor = Distance Between Profiles / (Distance Between Profiles - Ellipse Separation). All station coordinates were calculated using the Minimum Curvature method. Prudhoe Bay 01 December, 2021 - 17:00 Page 6 of 8 COMPASS Project: Prudhoe Bay REFERENCE INFORMATION WELL DETAMSTlan:Z-220 NAD1927(NADCONCONUS) Alaska Zone04 HALLIBURT101V Site: Z Co-ordinate (N/E) Reference: Well Plan: Z-220, True North Bp�rry Grilling Well: Plan: Z-220 Vertical (TVD) Reference: Z-2201RIG Planned RKB @ 82.60usft 56.10 Well Well: Plan:Z-22Measured Depth Reference: Z-220IRIG Planned RKB @ 82.60usft +N/-S +FJ-W Northing Ming Latitude Longitude Calculation Method: Minimum Curvature 0.00 0.00 599846.00 149° 11' 29.1546 W Plan: Z-220 wp08a 5959100.12 70° 1T 51.6336 N SURVEY PROGRAM NO GLOBAL FILTER: Using user defined selection & filtering criteria Date: 2021-09-30T00:00:00 Validated: Yes Version: 26.50 To 18383.58 Depth From Depth To Survey/Plan Tool 26.50 1000.00 Z-220 Hpo8a (Z-220) 3_Gyro-MWD90+Sag CASING DETAILS Ladder / S.F. Plots 1000.00 6124.00 Z-220 Hp08a(Z-220) 3_MWD+IFR2+MS+Sag 2 of 2 6124.00 18383.58 Z-220 vp08a (Z-220) 3_MWD+IFR2+MS+Sag TVD TVDSS MD Size Name 4709.80 4627.20 6124.00 9-5/8 9 5/8" x 12 1/4" 4932.60 4850.00 18383.58 6-5/8 6 5/8" x 8 1/2" 180.00 50.00 0 0 0 cc120.00 c 0 T Q90.00 IIIII I I 60.00 U 0 m c 30.00 N U 2111 FIL - 0.00 - - 6750 7500 8250 9000 9750 10500 11250 12000 12750 13500 14250 15000 15750 16500 17250 18000 18750 19500 20250 Measured Depth (1500 usft/in) 4.00 0 i5 3.00 LL Z-221 wp05 Risk Procedures Collision Req o -- -- �2.00 Q -- --- !Z N 1.00 No -Go Zone - Stop Drilling - - Collision Avoidance Requi 0.00 6750 7500 8250 9000 9750 10500 11250 12000 12750 13500 14250 15000 15750 16500 17250 18000 18750 19500 20250 Measured Depth (1500 usft/in) TRANSMITTAL LETTER CHECKLIST WELL NAME: PBU Z-220 PTD: o Development _ Service FIELD: Prudhoe Bay 221-105 Exploratory _ Stratigraphic Test _ Non -Conventional POOL: Schrader Bluff Oil Pool, Orion Development Area Check Box for Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK OPTIONS TEXT FOR APPROVAL LETTER MULTI The permit is for a new wellbore segment of existing well Permit LATERAL No. , API No. 50- (If last two digits Production should continue to be reported as a function of the original in API number are API number stated above. between 60-69) In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both Pilot Hole well name ( PH) and API number (50- ) from records, data and logs acquired for well name on permit). The permit is approved subject to full compliance with 20 AAC 25.055. Spacing Approval to produce/inject is contingent upon issuance of Exception a conservation order approving a spacing exception. ( ) as Operator assumes the liability of any protest to the spacing exception that may occur. All dry ditch sample sets submitted to the AOGCC must be in no greater Dry Ditch Sample than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Please note the following special condition of this permit: Production or production testing of coal bed methane is not allowed for Non- well ( ) until after ( ) Conventional has designed and implemented a water well testing program to provide Well baseline data on water quality and quantity. ( ) must contact the AOGCC to obtain advance approval of such water well testing program. Regulation 20 AAC 25.071(a) authorizes the AOGCC to specify types of well logs to be run. In addition to the well logging program proposed by ( ) in the attached application, the following well logs are also required for this well: Well Logging Requirements Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for well logs run must be submitted to the AOGCC within 90 days after completion, suspension or abandonment of this well. Revised 2/2015 WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, SCHRADER BLUF OIL - 64013 Well Name: PRUDHOE BAY UN ORIN Z-220 Program DEV Well bore seg ❑ I PTD#: 2211050 Company Hilcorp North Slope, LLC Initial Class/Tvpe DEV / PEND GeoArea 890 Unit 11650 On/Off Shore On Annular Disposal ❑ 2 --------------------------------------------------------------------------------------------------------------------------------- Lease number appropriate Yes Surf Loc & Top Prod Int lie in ADL0028262; TD lies in ADL0047450. 3 Unique well -name and number-------------------------------------- Yes 4 Well located in a defined pool Yes PRUDHOE BAY, SCHRADER BLUFF OIL — 640135, governed by CO 505B (Corrected) 5 Well located proper distance from drilling unit boundary Yes Well conforms to spacing requirements. 6 -Well -located proper dist_ance_from_otherwells ----------------------- - - - - -- Yes - - - - - - - - - - -- -- -- -- -- -- -- -- -- ------- - - - - -- -- - - 7 Sufficient acreage available in drilling unit - - - - - - - - - - - - - - - - - - - - - - - - - - - Yes - - - - - - - - - - - - - - - - 8 If deviated, is wellbore plat included Yes 9 Operator only affected party Yes 10 Operator has appropriate_ bond in force_ Yes 11 Permit can be issued without conservation order ---------------------------------------------------------------- Yes Appr Date 12 Permit can be issued without administrative approval Yes 13 Can permit be approved before 15-day wait Yes SFD 12/3/2021 14 Well located within area and strata authorized by Injection Order # (put 10# in comments) (For NA 15 All wells within 1/4 mile area of review identified (For service well only) NA 16 Pre -produced injector: duration of pre -production less_than_3_months _(For service well only)_ NA- - - - - - - - - - - - - 17 Nonconve_n. gas conforms to_AS31 05.030(j.1.A),(j.2.A-D)_ NA_ - - - - - _ _ _ _ 18 Conductor string provided Yes 20_" x 34" 215.5# A-53 set to 136'_ MD Engineering 19 Surface casing protects all known USDWs Yes 9-5/8" casing from surface to Oab sands, shoe to be horizontal 20 CMTyoI_ adequate to circulate on conductor_& surf csg Yes 9-5/8"casing_fully cemented. Stage collar for assurance of PF cement to surface 21 CMT_vol_ adequate to tie-in long string to surf csg_ Yes ------------------ 22 CMT will cover all known productive horizons Yes Cement from Oab to surface 23 Casing designs adequate for C, T, B & permafrost Yes 24 Adequate tankage or reserve pit Yes Innovation rig has good tankage and adequate truck support 25 If a_re-drill, has_a_ 1.0-403 for abandonment been approved NA_ Z-220_will be a grassroots SIB _development _well - - - 26 Adequate wellbore separation proposed _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes . One close approach to a fully abandoned exploration well HighlandST 27 If diverter required, does it meet regulations Yes 16" diverter line while drilling 12.25" hole Appr Date 28 Drilling fluid program schematic &_e_quip list adequate Yes MGR 12/9/2021 29 BOPEs, do they meet_ regulation_ Yes 13_-5/8"3 ram stack with annular and flow cross 30 BOPE press rating appropriate; test to (put psig in comments) Yes 5000 psi pressure rated . Test to 2500 psi. 31 Choke manifold complies w/API RP-53 (May 84) Yes 32 Work will occur without operation shutdown ---------------------- Yes 33 Is presence of H2S gas probable Yes PBU Z pad is an H2S pad. H2S monitoring will be in effect. 34 —Mechanical—condition of wells with_in_AOR verified_(For_service well only) - - - - - - - - - - - - NA_ Z-220_ is a development well 35 Permit can be issued w/o hydrogen sulfide measures No H2S measures required. Z-Pad wells are H2S bearing. Geology 36 Data presented on potential overpressure zones Yes Gas hydrates expected from Base Permafrost to Top Ugnu. Mitigation measures discussed Appr Date 37 Seismic analysis of shallow gas zones NA in Drilling Hazards. A 255' vertical -displacement fault expected at 5420' MD (-4539' TVDSS). SFD 12/3/2021 38 Seabed condition survey (if off -shore) NA Normal -pressures_ expected; MPD will mitigate any abnormal pressures encountered. 39 Contact name/phone for weekly progress reports [exploratory only] NA CaCO3 onsite to weight up mud system to 1 ppg above highest anticipated mud weight. Geologic Engineering Public Commissioner: Date: Commissioner: Date Commissioner Date JLC 12/10/2021 JMP 12/10/21
