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Home My WebLink About225-080David Douglas Hilcorp North Slope, LLC Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Hilcorp North Slope, LLC Date: 10/30/2025 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 DATA TRANSMITTAL: Well: PBU W-235 PTD: 225-080 API: 50-029-23824-00-00 FINAL LWD FORMATION EVALUATION + GEOSTEERING (09/21/2025 to 10/15/2025) x BaseStar, DGR and iCruise Gamma Ray, EWR-P4,StrataStar Resistivity, LithoStar Density and Neutron Porosity, Horizontal Presentation x Pressure While Drilling (2” & 5” MD/TVD Color Logs) x Final Definitive Directional Survey x Geosteering and EOW Report SFTP Transfer – Main Folders: LWD Subfolders: Geosteering Subfolders:g Please include current contact information if different from above. 225-080 T41045 Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2025.10.31 08:04:02 -08'00' Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www.aogcc.alaska.govOctober 20, 2025 Mr. Luke Saugier Senior Vice President Hilcorp North Slope, LLC P.O. Box 244027 Anchorage, AK 99524-4027 Re: Docket Number OTH-25-047 Notice of Violation – BOPE Test Reporting - Closeout Request for Information (RFI) Prudhoe Bay Unit W-235 (PTD 2250800) Dear Mr. Saugier: The Alaska Oil and Gas Conservation Commission (AOGCC) sent a notice of violation and request for information to Hilcorp North Slope LLC (Hilcorp) on October 7, 2025, for failing to timely submit a blowout prevention equipment (BOPE) test report. Drilling operations conducted by Hilcorp Innovation at PBU W-235 were due for a BOPE test, proper notice was provided, and the test was completed on September 27, 2025. Submitting a BOPE Test Report to the AOGCC is required not later than five days after completion of a BOPE test.1 The due date for the test report was October 2, 2025, but was received by electronic mail on October 5, 2025. By electronic mail on October 10, 2025, Hilcorp Drilling Manager Sean McLaughlin responded, “There was no violation as the BOPE test report was submitted on time per regulations.” The AOGCC disagrees; there is no factual basis for Mr. McLaughlin’s response. Mr. McLaughlin notes that “Regulatory expectations have been communicated with all Drill Site Managers” without other specifics and offers possible future training as a corrective action despite the apparent disagreement about the factual basis for this notice of violation. AOGCC accepts Hilcorp’s communication of regulatory expectations as a corrective action that satisfies the required response to the October 7, 2025, RFI. The effectiveness of that action will be obvious from compliance with reporting obligations. The AOGCC does not intend to pursue any further enforcement action regarding this violation. Sincerely, Jessie L. Chmielowski Gregory C. Wilson Commissioner Commissioner cc: Sean McLaughlin, Hilcorp (sean.mclaughlin@hilcorp.com) Phoebe Brooks 1 20 AAC 25.035(e)(10)(G). The test submittal requirements (distribution and date due relative to the completion of the test) are also detailed at the top of the BOPE Test Report, Form 10-424. Jessie L. Chmielowski Digitally signed by Jessie L. Chmielowski Date: 2025.10.20 09:00:38 -08'00' Gregory C Wilson Digitally signed by Gregory C Wilson Date: 2025.10.20 09:26:16 -08'00' CAUTION: External sender. DO NOT open links or attachments from UNKNOWN senders. 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. From:Sean McLaughlin To:Coldiron, Samantha J (OGC) Cc:Loepp, Victoria T (OGC); Regg, James B (OGC); Brooks, Phoebe L (OGC); Hobie Temple Subject:RE: [EXTERNAL] NOV Late BOPE test rpt - Hilcorp Innovation Date:Friday, October 10, 2025 10:57:54 AM Attachments:NOV Late BOPE test rpt - Hilcorp Innovation.pdf Commissioners, There was no violation as the BOPE test report was submitted on time per regulations. Hilcorp takes all regulatory requirements seriously. Regulatory expectations have been communicated with all Drill Site Managers. In 2026, I hope to conduct in person DSM training which will have an AOGCC awareness component. In addition, I am planning to build a training pack specific to Drilling and the AOGCC requirements. Regards, Sean Sean McLaughlin Hilcorp Alaska, LLC Drilling Manager Sean.McLaughlin@hilcorp.com Cell: 907-223-6784 From: Coldiron, Samantha J (OGC) <samantha.coldiron@alaska.gov> Sent: Tuesday, October 7, 2025 3:18 PM To: Sean McLaughlin <sean.mclaughlin@hilcorp.com> Cc: Loepp, Victoria T (OGC) <victoria.loepp@alaska.gov>; jim.regg <jim.regg@alaska.gov>; Brooks, Phoebe L (OGC) <phoebe.brooks@alaska.gov> Subject: [EXTERNAL] NOV Late BOPE test rpt - Hilcorp Innovation Docket Number OTH-25-047 Notice of Violation – BOPE Test Reporting Request for Information (RFI) Prudhoe Bay Unit W-235 (PTD 2250800) Samantha Coldiron AOGCC Special Assistant Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, AK 99501 (907) 793-1223 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. Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www.aogcc.alaska.govOctober 7, 2025 CERTIFIED MAIL – RETURN RECEIPT REQUESTED 7018 0680 0002 2052 9853 Sean McLaughlin Drilling Manager Hilcorp Alaska, LLC 3800 Centerpoint Drive, Suite 1400 Anchorage, AK, 99503 Re: Docket Number OTH-25-047 Notice of Violation – BOPE Test Reporting Request for Information (RFI) Prudhoe Bay Unit W-235 (PTD 2250800) Dear Mr. McLaughlin: On October 5, 2025, the Alaska Oil and Gas Conservation Commission (AOGCC) received by electronic mail a blowout prevention equipment (BOPE) test report for drilling operations conducted by Hilcorp Innovation. The report indicates testing was completed on September 27, 2025. Submittal of a BOPE Test Report to the AOGCC is required not later than five days after completion of a BOPE test. Refer to 20 AAC 25.035(e)(10)(G). The test submittal requirements (distribution and date due relative to the completion of the test) are also detailed at the top of the BOPE Test Report, Form 10- 424. Failure to timely submit a BOPE test report is a violation of AOGCC regulations. Within 7 days after receipt of this letter (next business day if the due date falls on a weekend or holiday), Hilcorp North Slope, LLC is requested to describe specific steps that have been or will be taken to prevent recurrence of this violation. The information request is made pursuant to 20 AAC 25.300. Failure to comply with this request will be an additional violation. The AOGCC reserves the right to pursue an enforcement action in this matter according to 20 AAC 25.535. Questions regarding this letter should be directed to Jim Regg at 907-793-1236. Sincerely, Jessie L. Chmielowski Gregory C. Wilson Commissioner Commissioner cc: Victoria Loepp Jim Regg Phoebe Brooks Gregory C Wilson Digitally signed by Gregory C Wilson Date: 2025.10.07 13:06:41 -08'00' Jessie L. Chmielowski Digitally signed by Jessie L. Chmielowski Date: 2025.10.07 13:44:08 -08'00' Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www.aogcc.alaska.gov Sean McLaughlin Drilling Manager Hilcorp Alaska, LLC 3800 Centerpoint Drive, Suite 1400 Anchorage, AK, 99503 Re: Prudhoe Bay Unit Field, Schrader Bluff Oil, Orion Development Area, PBU W-235 Hilcorp Alaska, LLC Permit to Drill Number: 225-080 Surface Location: 3872' FSL, 1454' FEL, Sec. 21, T11N, R12E, UM, AK Bottomhole Location: 560' FSL, 888' FEL, Sec. 06, T11N, R12E, UM, AK Dear Mr. McLaughlin: Enclosed is the approved application for the permit to drill the above referenced well. Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for all well logs run must be submitted to the AOGCC within 90 days after completion, suspension, or abandonment of this well, or within 90 days of acquisition of the data, whichever occurs first. 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, *UHJRU\ &.:LOVRQ Commissioner DATED this 1th day of September 2025. Gregory C Wilson Digitally signed by Gregory C Wilson Date: 2025.09.11 08:31:24 -08'00' REVISED Change of tubing size 225-080 Digitally signed by Sean McLaughlin (4311) DN: cn=Sean McLaughlin (4311) Date: 2025.08.21 16:40:28 - 08'00' Sean McLaughlin (4311) By Grace Christianson at 9:34 am, Aug 22, 2025 9:35 am, Aug 22, 2025 Email digital data of casing test, cementing summary, and FIT to AOGCC upon completion of FIT AOGCC witnessed BOP test to 3000 psi, annular to 2500 psi. SFD 9/10/2025 DSR-9/26/25 Documented well control drills for all crews running slotted liners with safety joints space out across BOPE JJL 9/10/25JLC 9/10/2025 Gregory C Wilson Digitally signed by Gregory C Wilson Date: 2025.09.11 08:30:50 -08'00' 09/11/25 09/11/25 RBDMS JSB 091525 8/21/2025 Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, AK 99501 Re: Revised PTD Application under PTD 225-080 Hilcorp North Slope, LLC W-235 Dear Sir/Madam, Hilcorp North Slope, LLC hereby applies for a revision to PTD application of PTD 225-080. The purpose for this revision is to change the upper completion to 3-1/2” tubing. Please find enclosed for your review the revised PTD packed with information as required by 20 AAC 25.005. The only change from prior submittal is the tubing size. If there are any questions, please contact me at (907)777-8395 or jengel@hilcorp.com. Respectfully, Joe Engel Senior Drilling Engineer Hilcorp North Slope, LLC Enclosures: Form 10-401 Permit to Drill Application for Permit to Drill Prudhoe Bay Unit (PBU) W-235 Version 2 8/21/2025 2 Prudhoe Bay W-235 Table of Contents 1. Well Name ...................................................................................................................................... 3 2. Location Summary .......................................................................................................................... 3 3. Blowout Prevention Equipment Information ................................................................................. 4 4. Drilling Hazards Information........................................................................................................... 5 5. Procedure for Conducting Formation Integrity Tests ..................................................................... 6 6. Casing and Cementing Program ..................................................................................................... 6 7. Diverter System Information .......................................................................................................... 7 8. Drilling Fluid Program ..................................................................................................................... 7 9. Abnormally Pressured Formation Information .............................................................................. 8 10. Seismic Analysis ............................................................................................................................ 8 11. Seabed Condition Analysis............................................................................................................ 8 12. Evidence of Bonding ..................................................................................................................... 8 13. Proposed Drilling Program ........................................................................................................... 9 14. Discussion of Mud and Cuttings Disposal and Annular Disposal ................................................ 11 15. Proposed Variance Request........................................................................................................ 11 Attachment 1: Location & GIS Maps ................................................................................................ 12 Attachment 2: BOPE Equipment ...................................................................................................... 14 Attachment 3: Hole Section Hazards ................................................................................................ 18 Attachment 4: LOT / FIT Test Procedure .......................................................................................... 22 Attachment 5: Cement Summary ..................................................................................................... 23 Attachment 6: Prognosed Formation Tops ...................................................................................... 2 5 Attachment 7: Wellbore Schematic ................................................................................................. 26 Attachment 8: Formation Evaluation Program ................................................................................ 27 Attachment 9: Wellhead Diagram .................................................................................................... 28 Attachment 10: Management of Change ......................................................................................... 2 9 Attachment 11: Drill Pipe Specs ....................................................................................................... 30 Attachment 12: Kick Tolerance Calculations .................................................................................... 32 Attachment 13: Directional Plan ...................................................................................................... 34 3 Prudhoe Bay W-235 As per 20 AAC 25.005 (c), an application for a Permit to Drill must be accompanied by each of the following items, except for an item already on file with the commission and identified in the application. 1. Well Name 20 AAC 25.005 (f) Each well must be identified by a unique name designated by the operator and a unique API number assigned by the commission under 20 AAC 25.040(b). For a well with multiple well branches, each branch must similarly be identified by a unique name and API number by adding a suffix to the name designated for the well by the operator and to the number assigned to the well by the commission. The well for which this application for a Permit to Drill is submitted is designated as W-235.This will be a development production well. 2. Location Summary 20 AAC 25.005 (c) (2) A plat identifying the property and the property's owners and showing: (A) the coordinates of the proposed location of the well at the surface, at the top of each objective formation, and at total depth, referenced to governmental section lines; (B) the coordinates of the proposed location of the well at the surface, referenced to the state plane coordinate system for this state as maintained by the National Geodetic Survey in the National Oceanic and Atmospheric Administration; (C) the proposed depth of the well at the top of each objective formation and at total depth Location at Surface Reference to Government Section Lines 1408' FNL, 1454' FEL, Sec 21, T11N, R12E, UM, AK NAD 27 Coordinate System X: 611,789.05 Y: 5,958,844.46 Innovation Rig KB Elevation 26.5’ above GL Ground Level 53.2’ above MSL Location at Top of Productive Interval Reference to Government Section Lines 2241' FSL, 1181' FEL, Sec 17, T11N, R12E, UM, AK NAD 27 Coordinate System X: 606,719.6 Y: 5,962,420.2 Measured Depth, Rig KB (MD) 8500’ Total Vertical Depth, Rig KB (TVD) 4,890.6’ Total vertical Depth, Subsea (TVDSS) 4,810.9’ Location at Bottom of Productive Interval Reference to Government Section Lines 560' FSL, 888' FEL, Sec 6, T11N, R12E, UM, AK NAD 27 Coordinate System X: 601,581.7 Y: 5,971,227.6 Measured Depth, Rig KB (MD) 18,706’ Total Vertical Depth, Rig KB (TVD) 4,929.6’ Total Vertical Depth, Subsea (TVDSS) 4,849.9’ 4 Prudhoe Bay W-235 (D) other information required by 20 AAC 25.050(b); 20 AAC 25.050 (b) If a well is to be intentionally deviated, the application for a Permit to Drill (Form 10-401) must: (1) include a plat, drawn to a suitable scale, showing the path of the proposed wellbore, including all adjacent wellbores within 200 feet of any portion of the proposed well; and Please refer to Attachment 1: Location Maps, Attachment 6: Formation Tops and Attachment 13: Directional Plan for further details. (2) for all wells within 200 feet of the proposed wellbore: (A) list the names of the operators of those wells, to the extent that those names are known or discoverable in public records, and show that each named operator has been furnished a copy of the application by certified mail; or (B) state that the applicant is the only affected owner. The applicant is the only affected owner. 3. Blowout Prevention Equipment Information 20 AAC 25.005 (c) (3) A diagram and description of the blowout prevention equipment (BOPE) as required by 20 AAC 25.035, 20 AAC 25.036, or 20 AAC 25.037, as applicable; BOP test frequency for W-235 will be 14-days. Except in the event of a significant operational issue that may affect well integrity or pose safety concerns, an extension to the 14-day BOP test period should not be requested. Summary of Innovation BOP Equipment & Test Requirements Hole Section Equipment Test Pressure (psi) 8-1/2” & 6-1/8” x 13-5/8” x 5M Control Technology Inc Annular BOP x 13-5/8” x 5M Control Technology Inc Double Gate x Blind ram in bottom cavity x Mud cross w/ 3” x 5M side outlets x 13-5/8” x 5M Control Technology Single ram x 3-1/8” x 5M Choke Line x 3-1/8” x 5M Kill line x 3-1/8” x 5M Choke manifold x Standpipe, floor valves, etc. Initial Test: 250/3000 (Annular 2500 psi) Subsequent Tests: 250/3000 (Annular 2500 psi) 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 in the doghouse and on accumulator unit. Please refer to Attachment 2: BOPE Equipment for further details. 5 Prudhoe Bay W-235 4. Drilling Hazards Information 20 AAC 25.005 (c) (4) Information on drilling hazards, including (A) the maximum downhole pressure that may be encountered, criteria used to determine it, and maximum potential surface pressure based on a pressure gradient to surface of 0.1 psi per foot of true vertical depth, unless the commission approves a different pressure gradient that provides a more accurate means of determining the maximum potential surface pressure; 8-1/2” Intermediate Hole Pressure Data Maximum anticipated BHP 2155 psi in the Schrader OBc at 4,898’ TVD Maximum surface pressure 1,665 psi from the Schrader OBc (0.10 psi/ft gas gradient to surface) Planned BOP test pressure Rams test to 3,000 psi / 250 psi Annular test to 2,500 psi / 250 psi Formation Integrity Test – 8.5” Hole 11.5 ppg EMW FIT after drilling 20’ of new hole outside of 9- 5/8” 11.5 provides greater than 25bbl KT based on 9.4ppg MW 9-5/8” Casing Test 2,500 psi, chart for 30 min 6-1/8” Production Hole Pressure Data Maximum anticipated BHP 2169 psi in the Schrader OBc at 4,929’ TVD Maximum surface pressure 1,676psi from the Schrader OBc (0.10 psi/ft gas gradient to surface) Planned BOP test pressure Rams test to 3,000 psi / 250 psi Annular test to 2,500 psi / 250 psi Formation Integrity Test – 6-1/8” hole 10.5 ppg EMW FIT after drilling 20’ of new hole outside of 9- 5/8” 10.5 provides greater than 25 bbl based on 9.0 ppg MW, 8.46 ppg pore pressure 9.5 ppg minimum to drill ahead, 10.5 EMW for drilling ECDs 7” Casing Test 2,500 psi, chart for 30 min (Test pressure driven by 50% of Casing Burst) (B) data on potential gas zones; and (C) data concerning potential causes of hole problems such as abnormally geo-pressured strata, lost circulation zones, and zones that have a propensity for differential sticking; Please refer to Attachment 3: Hole Section Hazards 6 Prudhoe Bay W-235 5. Procedure for Conducting Formation Integrity Tests 20 AAC 25.005 (c) (5) A description of the procedure for conducting formation integrity tests, as required under 20 AAC 25.030(f); Please refer to Attachment 4: LOT / FIT Test Procedure 6. Casing and Cementing Program 20 AAC 25.005 (c) (6) A complete proposed casing and cementing program as required by 20 AAC 25.030, and a description of any slotted liner, pre-perforated liner, or screen to be installed; Casing/Tubing Program Hole Size Tubular O.D. Tubular ID (in)Wt/Ft Grade Conn Length Top MD Bottom MD 12-1/4” 9-5/8” 8.525” 47# L-80 VamTop 2500’ Surface 2500’ 9-5/8” 8.835” 40# L-80 TXP 935’ 2500’ 3,435’ 8-1/2” 7” 6.276” 26# L-80 H563 8,560’ Surface 8,560’ 6-1/8” 4-1/2” Slotted 3.958 12.6 L-80 H563 5296 8410 13706 3-1/2” Slotted 2.992 9.2 L-80 H563 5000’ 13706 18706 Tubing 3-1/2” 2.992” 9.2# L-80 VamTop 8,410 Surface 8,410 Please refer to Attachment 5: Cement Summary for further details. 7 Prudhoe Bay W-235 7. Diverter System Information 20 AAC 25.005 (c) (7) A diagram and description of the diverter system as required by 20 AAC 25.035, unless this requirement is waived by the commission under 20 AAC 25.035(h)(2); Hole Section Equipment Test Pressure (psi) 12-1/4”x 13-5/8” 5M CTI Annular BOP w/ 16” diverter line Function Test Only Please refer to Attachment 2: BOPE Equipment for further details. 8. Drilling Fluid Program 20 AAC 25.005 (c) (8) A drilling fluid program, including a diagram and description of the drilling fluid system, as required by 20 AAC 25.033; Drilling Fluid Program Summary Surface Hole Intermediate Hole Production Hole Mud Type Spud Mud LSND 3% KCl BaraDril-N Mud Properties: Mud Weight PV YP Fluid Loss pH MBT Temp 8.8 – 9.8 20 – 40 25 - 45 < 10 8.5 – 9.0 Visc: 75 – 175 < 80* 8.8-9.5 ppg 15-30 25-45 < 11.0 8.5-9.0 < 8 8.8 – 9.5 ppg 15-25 15-30 < 11 9-10 <8 A diagram of drilling fluid system on Innovation is on file with AOGCC. Drilling fluid practices will be in accordance with appropriate regulations stated in 20 AAC 25.033 8 Prudhoe Bay W-235 9. Abnormally Pressured Formation Information 20 AAC 25.005 (c) (9) For an exploratory or stratigraphic test well, a tabulation setting out the depths of predicted abnormally geo-pressured strata as required by 20 AAC 25.033(f); N/A – Application is not for an exploratory or stratigraphic test well. 10. Seismic Analysis 20 AAC 25.005 (c) (10) For an exploratory or stratigraphic test well, a seismic refraction or reflection analysis as required by 20 AAC 25.061(a); N/A – Application is not for an exploratory or stratigraphic test well. 11. Seabed Condition Analysis 20 AAC 25.005 (c) (11) For a well drilled from an offshore platform, mobile bottom-founded structure, jack-up rig, or floating drilling vessel, an analysis of seabed conditions as required by 20 AAC 25.061(b); The W-235 is to be drilled from an onshore location. 12. Evidence of Bonding 20 AAC 25.005 (c) (12) Evidence showing that the requirements of 20 AAC 25.025 have been met; Evidence of bonding for Hilcorp North Slope, LLC is on file with the Commission. 9 Prudhoe Bay W-235 13. Proposed Drilling Program 20 AAC 25.005 (c) (13) A copy of the proposed drilling program; the drilling program must indicate if a well is proposed for hydraulic fracturing as defined in 20 AAC 25.283(m); to seek approval to perform hydraulic fracturing, a person must make a separate request by submitting an Application for Sundry Approvals (Form 10-403) with the information required under 20 AAC 25.280 and 20 AAC 25.283; The proposed drilling program to W-235 is listed below. Please refer to Attachments for a Well Schematic, Formation Evaluation Program, and Wellhead & Tree Diagram. Proposed Drilling Program W-235 1. MIRU Innovation Rig 2. NU and test Diverter 3. MU 12-1/4” Motor BHA and Drill Surface Hole to section TD, below SV3 4. CBU, BROOH 5. LD BHA 6. RU and RIH with 9-5/8” Surface Casing to TD 7. Cement 9-5/8” Casing as per cement program 8. Cut 9-5/8” Casing 9. ND Diverter, Install wellhead and casing spool 10. NU BOPE & Test 11. MU 8-1/2” cleanout assembly, TIH top of 9-5/8” shoe track 12. PT 9-5/8” casing to 2500 psi, chart test 13. Drill out 9-5/8” shoe track & 20’ of new hole 14. Pull back into 9-5/8” shoe, perform FIT t/ 11.5 ppg EMW 15. POOH, LD Cleanout BHA 16. MU 8-1/2” RSS BHA, RIH to bottom a. Install MPD RCD to be used to monitor wellbore conditions during connections 17. Drill 8-1/2” intermediate hole to section TD, in the SB OBc 18. CBU and BROOH 19. LD BHA, RU Casing equipment 20. Run 7” Casing to TD 21. Cement 7” Casing as per cement program 22. LD Landing joint, RILDS 23. Freeze protect 9-5/8” x 7” annulus 24. LD 5” DP, PU 4” DP 25. MU 6-1/8” cleanout BHA, TIH 26. Test 7” casing t/ 2500 psi, chart test 27. Drillout shoe track and 20’ of new hole 28. POOH to 7” casing shoe and perform FIT t/ 10.5 ppg EMW 29. POOH LD Cleanout BHA 30. MU 6-1/8” RSS BHA, RIH Email digital data of casing test, cementing summary, and FIT to AOGCC upon completion of FIT - JJL Email digital data of casing test, cementing summary, and FIT to AOGCC upon completion of FIT - JJL 10 Prudhoe Bay W-235 31. Drill 6-1/8” lateral as per directional plan and geo to TD, ~ 18,706’ MD 32. CBU and monitor well 33. BROOH t/ 7” shoe 34. CBU and POOH 35. LD BHA 36. RU and run 4-1/2” x 3-1/2” slotted liner on 4” DP to TD 37. Set and release liner hanger/packer 38. RU and PT liner to packer / 7” annulus t. 1500 psi f/ 10 min, charted 39. POOH LD running tool 40. Run 3-1/2” gas lift completion as per tally 41. Land Hanger, RILDS 42. Install BPV, ND BOPE, NU Tree 43. PT tubing hanger void 500/5000 psi, PT tree to 250/5000psi 44. Spot CI Brine 45. Drop Ball & Rod, set tubing packer 46. PT Tubing 3500 psi with 1000psi on IA, bleed tubing to 2000 psi & PT IA to 3500 psi a. All tests 30 min, charted 47. Bleed Pressure on tubing to 0 psi, spot freeze protect 48. RU jumper to allowed freeze protect to swap 49. RDMO Post Rig Work 1. Wireline: Pull ball and rod, RHC Plug 2. Well Tie In 3. Put Well on production Note: This well will not be fracture stimulated 11 Prudhoe Bay W-235 14. Discussion of Mud and Cuttings Disposal and Annular Disposal 20 AAC 25.005 (c) (14) A general description of how the operator plans to dispose of drilling mud and cuttings and a statement of whether the operator intends to request authorization under 20 AAC 25.080 for an annular disposal operation in the well. All cuttings and mud generated during drilling operations will be hauled to Prudhoe G&I on Pad 4. Drilling mud and cuttings will be hauled offsite as it is generated via truck. There is no intention to request authorization under 20 AAC 25.080 for any annular disposal operation in the well. 15. Proposed Variance Request There are no variance requests for W-235. 12 Prudhoe Bay W-235 Attachment 1: Location & GIS Maps 13 Prudhoe Bay W-235 14 Prudhoe Bay W-235 Attachment 2: BOPE Equipment Innovation Rig Diverter Schematic: 15 Prudhoe Bay W-235 W-235 Diverter Line Layout: 16 Prudhoe Bay W-235 Innovation Rig BOPE Schematic: Per 20 AAC 25.035(e)1.A For an operation with a maximum potential surface pressure of 3,000 psi or less, BOPE must have at least three preventers, including (i) one equipped with pipe rams that fit the size of drill pipe, tubing, or casing being used, except that pipe rams need not be sized to bottom-hole assemblies (BHAs) and drill collars; (ii) (ii) one with blind rams, except that a subsea BOPE assembly must have blind/shear rams in place of blind rams; and (iii) (iii) one annular type 17 Prudhoe Bay W-235 BOPE Configuration for each operation: Drill Intermediate / Run 7” Casing: x 13-5/8” Annular x UPR: 2-7/8” x 5-1/2” VBR x Blind Rams x LPR: 7” Solid Body Drill Production / Run 4-1/2” Liner & 3-1/2” Completion: x 13-5/8” Annular x UPR: 2-7/8” x 5-1/2” VBR x Blind Rams x LPR: 2-7/8” x 5-1/2” VBR Innovation Rig Choke Manifold Schematic 18 Prudhoe Bay W-235 Attachment 3: Hole Section Hazards 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 W Pad. Be prepared for them. They have been reported between 1800’ and 3140’ TVD across Prudhoe. 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. Cretaceous Over Pressure: W-Pad does not have a history of over-pressure in the cretaceous interval (4500-5300’ TVD). However, as a precaution ensure MW is above 9.0. Be prepared while drilling this interval. 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: Take directional surveys every stand, take additional surveys if necessary. Continuously monitor proximity to offset wellbores and record any close approaches on AM report. cretaceous interval (4500-5300’ TVD) ensure MW is above 9.0 19 Prudhoe Bay W-235 Wellbore stability (Permafrost, running sands and gravel) 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. Maintain mud parameters and increase MW to combat running sands and gravel formations. Stuck pipe, wood chunks over shakers and other hole stability issues are specific to W pad. Be prepared and review Pad Data Sheet. Bad see pad data sheet 8-1/2” Hole Section 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. 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. 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. Casing Running Casing running issue have been noted on W pad, gravels, stability wood chunks, etc. Watch casing run, and ensure to condition hole prior to running casing, ex: backream trouble intervals. Gas Cut Mud Gas cut mud as been seen on W pad, ensure sufficient MW is used during hole section. Ensure gas detectors are always functioning. Watch swab effect. 20 Prudhoe Bay W-235 6-1/8” Hole Section 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. 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. 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. 21 Prudhoe Bay W-235 H2S: PBU W Pad has a history of H2S. Ensure detectors are tested and functioning. x AOGCC to be notified withing 24 hours if H2S is encountered more than 20 ppm during drilling operations x Rig will have fully functional automatic H2S detection equipment meeting the requirements of 20 AAC 25.066 x In the event H2S is detected, well work will be suspended and personnel evacuated until a detailed mitigation procured can be developed. Wells with over 100ppm H2S readings on W Pad: There are no wells with H2S 100ppm or greater 22 Prudhoe Bay W-235 Attachment 4: LOT / FIT Test Procedure 23 Prudhoe Bay W-235 Attachment 5: Cement Summary 9-5/8” Surface Casing Cement OH x CSG 12-1/4” OH x 9-5/8” Casing Basis Cement Vol Open hole volume + excess + 120’ ft shoe track TOC Cement to Surface Total Cement Volume Spacer 60 bbls of 11.0 ppg Tuned Spacer Cement Open Hole Excess, 300% Lead & 100% Tail System 10.7ppg Lead: 450.4 bbl, 2526.7 ft3, 877.3 sks - 2.88 cuft/sk 15.8ppg Tail: 160.2 bbls, 898.7 ft3, 768.1 sks – 1.17 cuft/sk BHST 50 deg F Displacement (3,435’–120’) * .0758bpf = 251.3 bbl Section Calculation Vol (bbl) Vol (ft3) Vol (sks) 20" Cond x 9-5/8" Casing 110' x 0.26 bpf 28.6 160.4 12-1/4" OH x 9-5/8" Casing (2000' - 110) x .0558 x 4 421.8 2366.3 Total Lead 450.4 2526.7 877.3 12-1/4" OH x 9-5/8" Casing (3435 - 2000') x .0558 bpf x 2 160.2 898.7 Total Tail 160.2 898.7 768.1LeadTail 24 Prudhoe Bay W-235 7” Intermediate Casing Cement OH x CSG 8-1/2” OH x 7” Casing Basis Cement Vol Open hole volume + excess + 120’ ft shoe track TOC 500’ MD above Ugnu 4A (Top Ugnu 4A: 4,970’ MD, TOC 4,470’ MD) (TOC Required is 500’ Above Ugnu 4A, significant hydrocarbon zone) Lead TOC: 4,470’ MD Tail TOC: 7,104’ MD Total Cement Volume Spacer 60 bbls of 11.0 ppg Tuned Spacer Cement 30% Open Hole Excess, Lead & Tail System 12.0ppg Lead: 77.4 bbls, 434.2 ft3, 184.8 sks - 2.35 cuft/sk 15.8ppg Tail: 47.3 bbls, 265.4 ft3, 230.7 sks – 1.15 cuft/sk BHST 100 deg F Displacement (8,561’ – 120’) * .0382bpf = 322.4 bbl Section Calculation Vol (bbl) Vol (ft3) Vol (sks) 8-1/2" OH x 7" Casing (7104' - 4,470') x 0.0226 bpf x 1.3 = 77.4 434.2 Total Lead 77.4 434.2 184.8 8-1/2" OH x 7" Casing (8,561' - 7104') x 0.0226 bpf x 1.3 = 42.8 240.1 7" Shoetrack 120' x 0.0382 bpf = 4.5 25.2 Total Tail 47.3 265.4 230.7Tail Lead Slurry Lead Tail Density 12 ppg 15.8 ppg Yield 2.35 ft3/sk 1.15 ft3/sk Mix Water 13.91 gal/sk 4.97 gal/sk 24 Prudhoe Bay W-235 7” Intermediate Casing Cement OH x CSG 8-1/2” OH x 7” Casing Basis Cement Vol Open hole volume + excess + 120’ ft shoe track TOC 500’ MD above Ugnu MA (Top Ugnu MA: 7,159’ MD, TOC 6,659’ MD) (TOC Required is 500’ Above Ugnu MA, significant hydrocarbon zone) Total Cement Volume Spacer 60 bbls of 11.0 ppg Tuned Spacer Cement 40% Open Hole Excess 15.8ppg Tail: 64.1 bbls, 363 ft3, 310 sks – 1.17 cuft/sk BHST 100 deg F Displacement (8,561’–120’) * .0382bpf = 322.4 bbl Section Calculation Vol (bbl) Vol (ft3) Vol (sks) 8.5" OH x 7" (8,561 - 6,659)' x 0.0226 bpf x 1.4 = 60.2 337.7 7" Shoetrack 120' x 0.0382 bpf = 4.5 25.2 Total Tail 64.7 363.0 310.2TailSuperseded 25 Prudhoe Bay W-235 Attachment 6: Prognosed Formation Tops All formations expected to be normally pressured. ANTICIPATED FORMATION TOPS & GEOHAZARDS Reference Plan: BPERM 2,047 1,879.7 -1800 827 0.44 SV3 3,233 2,434.4 -2434 1071 0.44 SV1 Gas Hydrates 4,257 2,941.3 -2941 1294 0.44 Ugnu 4A Uncons Sand Heavy Oil? 4,970 3,294.1 -3294 1449 0.44 Ugnu 3 Uncons Sand Heavy Oil? 5,599 3,605.5 -3605 1586 0.44 Ugnu MA Uncons Sand Heavy Oil? 7,161 4,378.2 -4378 1926 0.44 NB Sandstone water 7,604 4,591.5 -4592 2020 0.44 OA Sandstone water/oil 7,924 4,707.6 -4708 2071 0.44 OBA Sandstone oil 8,116 4,755.9 -4756 2093 0.44 OBB Sandstone oil 8,279 4,783.6 -4784 2105 0.44 OBC Sandstone oil 8,676 4,811.6 -4812 2117 0.44 Est. Pressure Gradient W-235 wp05 TOP NAME LITHOLOGY EXPECTED FLUID MD (FT) TVD (FT) TVDSS (FT) 26 Prudhoe Bay W-235 Attachment 7: Wellbore Schematic 27 Prudhoe Bay W-235 Attachment 8: Formation Evaluation Program 12-1/4” Surface Hole LWD Gamma Ray Resistivity 8-1/2” Intermediate Hole LWD Gamma Ray Resistivity 6-1/8” Production Hole LWD Gamma Ray Resistivity Azimuthal Resistivity Density Neutron Mudlogging No mudlogging is planned. 28 Prudhoe Bay W-235 Attachment 9: Wellhead Diagram 29 Prudhoe Bay W-235 Attachment 10: Management of Change 30 Prudhoe Bay W-235 Attachment 11: Drill Pipe Specs 31 Prudhoe Bay W-235 32 Prudhoe Bay W-235 Attachment 12: Kick Tolerance Calculations 33 Prudhoe Bay W-235 34 Prudhoe Bay W-235 Attachment 13: Directional Plan Surface Section Offset Wells with CF < 1.0: x There are no wells with a CF < 1.0 Intermediate Section Offset Wells with CF < 1.0: x There are no wells with a CF < 1.0 Production Section Offset Wells with CF < 1.0: x W-241: CF .8+, This well is a Schrader Bluff OBd lateral injector, separated from the OBc by silt, we will have geologic separation from the well. W-241 will be shut in during production hole drilling. Surveys will be continuously monitored for magnetic interreference across this interval. x Z-228: CF .9, This well is a Schrader Bluff OBd lateral producer, separated from the OBc by silt, we will have geologic separation from the well. Surveys will be continuously monitored for magnetic interreference across this interval. x W-26B: CF.67, This well is a Schrader Bluff OBd lateral producer, separated from the OBc by silt, we will have geologic separation from the well. Surveys will be continuously monitored for magnetic interreference across this interval. Standard Proposal Report 17 July, 2025 Plan: W-235 wp05 Hilcorp North Slope, LLC Prudhoe Bay W Plan: W-235 W-235 -850085017002550340042505100True Vertical Depth (1700 usft/in)0 850 1700 2550 3400 4250 5100 5950 6800 7650 8500 9350 10200 11050 11900 12750 13600 14450 15300 16150Vertical Section at 321.35° (1700 usft/in)9-5/8" x 12 1/4"7" x 8 1/2"4-1/2" x 6 1/850010001500200025003000350040004500500055006000650070007500800085009000 9500 10000 10500 11000 11500 12000 12500 13000135001400014500150001550016000165001700017500180001850018706 W-235 wp05Start Dir 2º/100' : 350' MD, 350'TVDStart Dir 3º/100' : 650' MD, 649.45'TVDEnd Dir : 2519.13' MD, 2160.99' TVDStart Dir 4º/100' : 7417.23' MD, 4585.1'TVDEnd Dir : 8299.82' MD, 4866.23' TVDStart Dir 5º/100' : 8549.82' MD, 4896.7'TVDEnd Dir : 8704.82' MD, 4905.14' TVDStart Dir 1º/100' : 9704.82' MD, 4892.05'TVDEnd Dir : 9779.82' MD, 4891.56' TVDStart Dir 1.5º/100' : 13099.82' MD, 4891.56'TVDEnd Dir : 13401' MD, 4892.61' TVDTotal Depth : 18706' MD, 4929.65' TVDBPERMSV3SV1Ugnu 4AUG3Ugnu MANBOAOBAOBBOBCHilcorp North Slope, LLCCalculation Method:Minimum CurvatureError System:ISCWSAScan Method: Closest Approach 3DError Surface: Ellipsoid SeparationWarning Method: Error RatioWELL DETAILS: Plan: W-23553.20+N/-S +E/-WNorthingEastingLatittudeLongitude0.000.005958844.46611789.05 70° 17' 47.4653 N 149° 5' 41.1373 WSURVEY PROGRAMDate: 2025-07-14T00:00:00 Validated: Yes Version: Depth From Depth To Survey/Plan Tool26.50 1000.00 W-235 wp05 (W-235) GYD_Quest GWD1000.00 3435.00 W-235 wp05 (W-235) 3_MWD+IFR2+MS+Sag3435.00 8561.00 W-235 wp05 (W-235) 3_MWD+IFR2+MS+Sag8561.00 18706.00 W-235 wp05 (W-235) 3_MWD+IFR2+MS+SagFORMATION TOP DETAILSTVDPath TVDssPath MDPath Formation1879.70 1800.00 2047.01 BPERM2513.70 2434.00 3231.81 SV33020.70 2941.00 4256.25 SV13373.70 3294.00 4969.51 Ugnu 4A3684.70 3605.00 5597.91 UG34457.70 4378.00 7159.81 Ugnu MA4671.70 4592.00 7604.85 NB4787.70 4708.00 7924.98 OA4835.70 4756.00 8115.37 OBA4863.70 4784.00 8279.83 OBB4891.70 4812.00 8508.80 OBCREFERENCE INFORMATIONCo-ordinate (N/E) Reference:Well Plan: W-235, True NorthVertical (TVD) Reference:W-235 prelim @ 79.70usft (Original Well Elev)Measured Depth Reference:W-235 prelim @ 79.70usft (Original Well Elev)Calculation Method: Minimum CurvatureProject:Prudhoe BaySite:WWell:Plan: W-235Wellbore:W-235Design:W-235 wp05CASING DETAILSTVD TVDSS MD SizeName2614.00 2534.30 3434.48 9-5/8 9-5/8" x 12 1/4"4898.00 4818.30 8560.93 7 7" x 8 1/2"4929.65 4849.95 18706.00 4-1/2 4-1/2" x 6 1/8"SECTION DETAILSSec MD Inc Azi TVD +N/-S +E/-W Dleg TFace VSect Target Annotation1 26.50 0.00 0.00 26.50 0.00 0.00 0.00 0.00 0.002 350.00 0.00 0.00 350.00 0.00 0.00 0.00 0.00 0.00 Start Dir 2º/100' : 350' MD, 350'TVD3 650.00 6.00 275.00 649.45 1.37 -15.63 2.00 275.00 10.83 Start Dir 3º/100' : 650' MD, 649.45'TVD4 850.00 12.00 275.00 846.90 4.09 -46.79 3.00 0.00 32.425 2519.13 60.34 304.20 2160.99 455.97 -872.68 3.00 33.56 901.12 End Dir : 2519.13' MD, 2160.99' TVD6 7417.23 60.34 304.20 4585.10 2848.29 -4392.89 0.00 0.00 4967.97 Start Dir 4º/100' : 7417.23' MD, 4585.1'TVD7 8299.82 83.00 333.00 4866.23 3474.02 -4925.87 4.00 55.83 5789.52 End Dir : 8299.82' MD, 4866.23' TVD8 8549.82 83.00 333.00 4896.70 3695.11 -5038.52 0.00 0.00 6032.55 Start Dir 5º/100' : 8549.82' MD, 4896.7'TVD9 8704.82 90.75 333.00 4905.14 3832.91 -5108.73 5.00 0.00 6184.02 End Dir : 8704.82' MD, 4905.14' TVD10 9704.82 90.75 333.00 4892.05 4723.84 -5562.68 0.00 0.00 7163.35 Start Dir 1º/100' : 9704.82' MD, 4892.05'TVD11 9779.82 90.00 333.00 4891.56 4790.66 -5596.73 1.00 180.00 7236.80 End Dir : 9779.82' MD, 4891.56' TVD12 13099.82 90.00 333.00 4891.56 7748.80 -7103.98 0.00 0.00 10488.45 Start Dir 1.5º/100' : 13099.82' MD, 4891.56'TVD13 13401.00 89.60 328.50 4892.61 8011.51 -7251.10 1.50 -95.08 10785.51 End Dir : 13401' MD, 4892.61' TVD14 18706.00 89.60 328.50 4929.65 12534.66 -10022.89 0.00 0.00 16049.17 Total Depth : 18706' MD, 4929.65' TVD -750 0 750 1500 2250 3000 3750 4500 5250 6000 6750 7500 8250 9000 9750 10500 11250 12000 12750 13500 South(-)/North(+) (1500 usft/in)-9750 -9000 -8250 -7500 -6750 -6000 -5250 -4500 -3750 -3000 -2250 -1500 -750 0 West(-)/East(+) (1500 usft/in) 9-5/8" x 12 1/4" 7" x 8 1/2" 4-1/2" x 6 1/8" 250125017502000225025002750300032503500375040004250450047504930 W-235 wp05 Start Dir 2º/100' : 350' MD, 350'TVD Start Dir 3º/100' : 650' MD, 649.45'TVD End Dir : 2519.13' MD, 2160.99' TVD Start Dir 4º/100' : 7417.23' MD, 4585.1'TVD End Dir : 8299.82' MD, 4866.23' TVD Start Dir 5º/100' : 8549.82' MD, 4896.7'TVD End Dir : 8704.82' MD, 4905.14' TVD Start Dir 1º/100' : 9704.82' MD, 4892.05'TVD End Dir : 9779.82' MD, 4891.56' TVD Start Dir 1.5º/100' : 13099.82' MD, 4891.56'TVD End Dir : 13401' MD, 4892.61' TVD Total Depth : 18706' MD, 4929.65' TVD CASING DETAILS TVD TVDSS MD Size Name 2614.00 2534.30 3434.48 9-5/8 9-5/8" x 12 1/4" 4898.00 4818.30 8560.93 7 7" x 8 1/2" 4929.65 4849.95 18706.00 4-1/2 4-1/2" x 6 1/8" Project: Prudhoe Bay Site: W Well: Plan: W-235 Wellbore: W-235 Plan: W-235 wp05 WELL DETAILS: Plan: W-235 53.20 +N/-S +E/-W Northing Easting Latittude Longitude 0.00 0.00 5958844.46 611789.05 70° 17' 47.4653 N 149° 5' 41.1373 W REFERENCE INFORMATION Co-ordinate (N/E) Reference:Well Plan: W-235, True NorthVertical (TVD) Reference:W-235 prelim @ 79.70usft (Original Well Elev) Measured Depth Reference:W-235 prelim @ 79.70usft (Original Well Elev)Calculation Method:Minimum Curvature Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Map System: Geo Datum: Project Map Zone: System Datum:US State Plane 1927 (Exact solution) NAD 1927 (NADCON CONUS) Prudhoe Bay, North Slope, UNITED STATES Alaska Zone 04 Mean Sea Level Using Well Reference Point Using geodetic scale factor Site Position: From: Site Latitude: Longitude: Position Uncertainty: Northing: Easting: Grid Convergence: W, TR-11-12 usft Map usft usft °0.84Slot Radius:"0 5,957,194.18 609,919.18 5.00 70° 17' 31.5064 N 149° 6' 36.3426 W Well Well Position Longitude: Latitude: Easting: Northing: usft +E/-W +N/-S Position Uncertainty usft usft usftGround Level: Plan: W-235 usft usft 0.00 0.00 5,958,844.46 611,789.05 53.20Wellhead Elevation:usft0.50 70° 17' 47.4653 N 149° 5' 41.1373 W Wellbore Declination (°) Field Strength (nT) Sample Date Dip Angle (°) W-235 Model NameMagnetics BGGM2025 9/14/2025 13.76 80.59 57,071.39761784 Phase:Version: Audit Notes: Design W-235 wp05 PLAN Vertical Section: Depth From (TVD) (usft) +N/-S (usft) Direction (°) +E/-W (usft) Tie On Depth:26.50 321.350.000.0026.50 Inclination (°) Azimuth (°) +E/-W (usft) Tool Face (°) +N/-S (usft) Measured Depth (usft) Vertical Depth (usft) Dogleg Rate (°/100usft) Build Rate (°/100usft) Turn Rate (°/100usft) Plan Sections TVD System usft 0.000.000.000.000.000.0026.500.000.0026.50 -53.20 0.000.000.000.000.000.00350.000.000.00350.00 270.30 275.000.002.002.00-15.631.37649.45275.006.00650.00 569.75 0.000.003.003.00-46.794.09846.90275.0012.00850.00 767.20 33.561.752.903.00-872.68455.972,160.99304.2060.342,519.13 2,081.29 0.000.000.000.00-4,392.892,848.294,585.10304.2060.347,417.23 4,505.40 55.833.262.574.00-4,925.873,474.024,866.23333.0083.008,299.82 4,786.53 0.000.000.000.00-5,038.523,695.114,896.70333.0083.008,549.82 4,817.00 0.000.005.005.00-5,108.733,832.914,905.14333.0090.758,704.82 4,825.44 0.000.000.000.00-5,562.684,723.844,892.05333.0090.759,704.82 4,812.35 180.000.00-1.001.00-5,596.734,790.664,891.56333.0090.009,779.82 4,811.86 0.000.000.000.00-7,103.987,748.804,891.56333.0090.0013,099.82 4,811.86 -95.08-1.49-0.131.50-7,251.108,011.514,892.61328.5089.6013,401.00 4,812.91 0.000.000.000.00-10,022.8912,534.664,929.65328.5089.6018,706.00 4,849.95 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 2 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Inclination (°) Azimuth (°) +E/-W (usft) Map Northing (usft) Map Easting (usft) +N/-S (usft) Planned Survey Vertical Depth (usft) TVDss usft DLS -53.20 Vert Section 26.50 0.00 26.50 0.00 0.000.00 611,789.055,958,844.46-53.20 0.00 0.00 100.00 0.00 100.00 0.00 0.000.00 611,789.055,958,844.4620.30 0.00 0.00 200.00 0.00 200.00 0.00 0.000.00 611,789.055,958,844.46120.30 0.00 0.00 300.00 0.00 300.00 0.00 0.000.00 611,789.055,958,844.46220.30 0.00 0.00 350.00 0.00 350.00 0.00 0.000.00 611,789.055,958,844.46270.30 0.00 0.00 Start Dir 2º/100' : 350' MD, 350'TVD 400.00 1.00 400.00 0.04 -0.43275.00 611,788.615,958,844.49320.30 2.00 0.30 500.00 3.00 499.93 0.34 -3.91275.00 611,785.135,958,844.74420.23 2.00 2.71 600.00 5.00 599.68 0.95 -10.86275.00 611,778.185,958,845.25519.98 2.00 7.52 650.00 6.00 649.45 1.37 -15.63275.00 611,773.405,958,845.59569.75 2.00 10.83 Start Dir 3º/100' : 650' MD, 649.45'TVD 700.00 7.50 699.10 1.88 -21.49275.00 611,767.545,958,846.02619.40 3.00 14.89 800.00 10.50 797.86 3.24 -37.07275.00 611,751.945,958,847.15718.16 3.00 25.68 850.00 12.00 846.90 4.09 -46.79275.00 611,742.215,958,847.86767.20 3.00 32.42 900.00 13.28 895.69 5.41 -57.64278.61 611,731.345,958,849.01815.99 3.00 40.22 1,000.00 15.94 992.45 10.47 -82.32284.09 611,706.595,958,853.70912.75 3.00 59.59 1,100.00 18.71 1,087.91 18.77 -110.90288.00 611,677.895,958,861.581,008.21 3.00 83.92 1,200.00 21.53 1,181.80 30.28 -143.30290.93 611,645.335,958,872.611,102.10 3.00 113.15 1,300.00 24.40 1,273.86 44.98 -179.44293.20 611,608.985,958,886.761,194.16 3.00 147.19 1,400.00 27.29 1,363.85 62.82 -219.21295.02 611,568.955,958,904.011,284.15 3.00 185.96 1,500.00 30.21 1,451.51 83.75 -262.51296.52 611,525.355,958,924.291,371.81 3.00 229.35 1,600.00 33.13 1,536.61 107.72 -309.21297.77 611,478.305,958,947.561,456.91 3.00 277.24 1,700.00 36.07 1,618.91 134.66 -359.19298.84 611,427.925,958,973.761,539.21 3.00 329.50 1,800.00 39.02 1,698.19 164.50 -412.32299.77 611,374.365,959,002.801,618.49 3.00 385.98 1,900.00 41.97 1,774.23 197.15 -468.44300.59 611,317.775,959,034.611,694.53 3.00 446.53 2,000.00 44.93 1,846.82 232.53 -527.41301.32 611,258.295,959,069.101,767.12 3.00 510.98 2,047.01 46.32 1,879.70 250.08 -556.07301.64 611,229.375,959,086.221,800.00 3.00 542.58 BPERM 2,100.00 47.89 1,915.76 270.54 -589.05301.98 611,196.095,959,106.181,836.06 3.00 579.16 2,200.00 50.86 1,980.87 311.07 -653.21302.57 611,131.345,959,145.751,901.17 3.00 650.89 2,300.00 53.82 2,041.96 354.01 -719.71303.13 611,064.225,959,187.701,962.26 3.00 725.95 2,400.00 56.79 2,098.87 399.25 -788.35303.64 610,994.915,959,231.912,019.17 3.00 804.16 2,500.00 59.77 2,151.44 446.66 -858.97304.11 610,923.615,959,278.262,071.74 3.00 885.29 2,519.13 60.34 2,160.99 455.97 -872.68304.20 610,909.755,959,287.362,081.29 3.00 901.12 End Dir : 2519.13' MD, 2160.99' TVD 2,600.00 60.34 2,201.01 495.47 -930.81304.20 610,851.065,959,325.992,121.31 0.00 968.27 2,700.00 60.34 2,250.50 544.31 -1,002.67304.20 610,778.485,959,373.752,170.80 0.00 1,051.29 2,800.00 60.34 2,299.99 593.15 -1,074.54304.20 610,705.905,959,421.512,220.29 0.00 1,134.32 2,900.00 60.34 2,349.48 641.99 -1,146.41304.20 610,633.325,959,469.282,269.78 0.00 1,217.35 3,000.00 60.34 2,398.97 690.83 -1,218.28304.20 610,560.735,959,517.042,319.27 0.00 1,300.38 3,100.00 60.34 2,448.46 739.68 -1,290.15304.20 610,488.155,959,564.802,368.76 0.00 1,383.41 3,200.00 60.34 2,497.95 788.52 -1,362.02304.20 610,415.575,959,612.572,418.25 0.00 1,466.44 3,231.81 60.34 2,513.70 804.06 -1,384.88304.20 610,392.485,959,627.762,434.00 0.00 1,492.86 SV3 3,300.00 60.34 2,547.45 837.36 -1,433.89304.20 610,342.995,959,660.332,467.75 0.00 1,549.47 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 3 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Inclination (°) Azimuth (°) +E/-W (usft) Map Northing (usft) Map Easting (usft) +N/-S (usft) Planned Survey Vertical Depth (usft) TVDss usft DLS 2,517.24 Vert Section 3,400.00 60.34 2,596.94 886.20 -1,505.76304.20 610,270.415,959,708.092,517.24 0.00 1,632.50 3,434.48 60.34 2,614.00 903.04 -1,530.54304.20 610,245.385,959,724.562,534.30 0.00 1,661.13 9-5/8" x 12 1/4" 3,500.00 60.34 2,646.43 935.04 -1,577.62304.20 610,197.835,959,755.862,566.73 0.00 1,715.53 3,600.00 60.34 2,695.92 983.88 -1,649.49304.20 610,125.255,959,803.622,616.22 0.00 1,798.56 3,700.00 60.34 2,745.41 1,032.73 -1,721.36304.20 610,052.675,959,851.382,665.71 0.00 1,881.59 3,800.00 60.34 2,794.90 1,081.57 -1,793.23304.20 609,980.085,959,899.152,715.20 0.00 1,964.62 3,900.00 60.34 2,844.39 1,130.41 -1,865.10304.20 609,907.505,959,946.912,764.69 0.00 2,047.64 4,000.00 60.34 2,893.88 1,179.25 -1,936.97304.20 609,834.925,959,994.672,814.18 0.00 2,130.67 4,100.00 60.34 2,943.37 1,228.09 -2,008.84304.20 609,762.345,960,042.442,863.67 0.00 2,213.70 4,200.00 60.34 2,992.86 1,276.94 -2,080.71304.20 609,689.765,960,090.202,913.16 0.00 2,296.73 4,256.25 60.34 3,020.70 1,304.41 -2,121.13304.20 609,648.945,960,117.062,941.00 0.00 2,343.43 SV1 4,300.00 60.34 3,042.35 1,325.78 -2,152.58304.20 609,617.185,960,137.962,962.65 0.00 2,379.76 4,400.00 60.34 3,091.85 1,374.62 -2,224.44304.20 609,544.605,960,185.733,012.15 0.00 2,462.79 4,500.00 60.34 3,141.34 1,423.46 -2,296.31304.20 609,472.025,960,233.493,061.64 0.00 2,545.82 4,600.00 60.34 3,190.83 1,472.30 -2,368.18304.20 609,399.445,960,281.253,111.13 0.00 2,628.85 4,700.00 60.34 3,240.32 1,521.14 -2,440.05304.20 609,326.855,960,329.023,160.62 0.00 2,711.88 4,800.00 60.34 3,289.81 1,569.99 -2,511.92304.20 609,254.275,960,376.783,210.11 0.00 2,794.91 4,900.00 60.34 3,339.30 1,618.83 -2,583.79304.20 609,181.695,960,424.543,259.60 0.00 2,877.94 4,969.51 60.34 3,373.70 1,652.78 -2,633.74304.20 609,131.245,960,457.743,294.00 0.00 2,935.65 Ugnu 4A 5,000.00 60.34 3,388.79 1,667.67 -2,655.66304.20 609,109.115,960,472.313,309.09 0.00 2,960.96 5,100.00 60.34 3,438.28 1,716.51 -2,727.53304.20 609,036.535,960,520.073,358.58 0.00 3,043.99 5,200.00 60.34 3,487.77 1,765.35 -2,799.39304.20 608,963.955,960,567.833,408.07 0.00 3,127.02 5,300.00 60.34 3,537.26 1,814.20 -2,871.26304.20 608,891.375,960,615.603,457.56 0.00 3,210.05 5,400.00 60.34 3,586.75 1,863.04 -2,943.13304.20 608,818.795,960,663.363,507.05 0.00 3,293.08 5,500.00 60.34 3,636.24 1,911.88 -3,015.00304.20 608,746.215,960,711.123,556.54 0.00 3,376.11 5,597.91 60.34 3,684.70 1,959.70 -3,085.37304.20 608,675.145,960,757.893,605.00 0.00 3,457.40 UG3 5,600.00 60.34 3,685.74 1,960.72 -3,086.87304.20 608,673.625,960,758.893,606.04 0.00 3,459.14 5,700.00 60.34 3,735.23 2,009.56 -3,158.74304.20 608,601.045,960,806.653,655.53 0.00 3,542.17 5,800.00 60.34 3,784.72 2,058.41 -3,230.61304.20 608,528.465,960,854.413,705.02 0.00 3,625.20 5,900.00 60.34 3,834.21 2,107.25 -3,302.48304.20 608,455.885,960,902.183,754.51 0.00 3,708.23 6,000.00 60.34 3,883.70 2,156.09 -3,374.35304.20 608,383.305,960,949.943,804.00 0.00 3,791.26 6,100.00 60.34 3,933.19 2,204.93 -3,446.21304.20 608,310.725,960,997.703,853.49 0.00 3,874.29 6,200.00 60.34 3,982.68 2,253.77 -3,518.08304.20 608,238.145,961,045.473,902.98 0.00 3,957.31 6,300.00 60.34 4,032.17 2,302.61 -3,589.95304.20 608,165.565,961,093.233,952.47 0.00 4,040.34 6,400.00 60.34 4,081.66 2,351.46 -3,661.82304.20 608,092.985,961,140.994,001.96 0.00 4,123.37 6,500.00 60.34 4,131.15 2,400.30 -3,733.69304.20 608,020.395,961,188.764,051.45 0.00 4,206.40 6,600.00 60.34 4,180.64 2,449.14 -3,805.56304.20 607,947.815,961,236.524,100.94 0.00 4,289.43 6,700.00 60.34 4,230.14 2,497.98 -3,877.43304.20 607,875.235,961,284.284,150.44 0.00 4,372.46 6,800.00 60.34 4,279.63 2,546.82 -3,949.30304.20 607,802.655,961,332.054,199.93 0.00 4,455.49 6,900.00 60.34 4,329.12 2,595.67 -4,021.16304.20 607,730.075,961,379.814,249.42 0.00 4,538.52 7,000.00 60.34 4,378.61 2,644.51 -4,093.03304.20 607,657.495,961,427.574,298.91 0.00 4,621.55 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 4 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Inclination (°) Azimuth (°) +E/-W (usft) Map Northing (usft) Map Easting (usft) +N/-S (usft) Planned Survey Vertical Depth (usft) TVDss usft DLS 4,348.40 Vert Section 7,100.00 60.34 4,428.10 2,693.35 -4,164.90304.20 607,584.915,961,475.344,348.40 0.00 4,704.58 7,159.81 60.34 4,457.70 2,722.56 -4,207.89304.20 607,541.505,961,503.904,378.00 0.00 4,754.24 Ugnu MA 7,200.00 60.34 4,477.59 2,742.19 -4,236.77304.20 607,512.335,961,523.104,397.89 0.00 4,787.61 7,300.00 60.34 4,527.08 2,791.03 -4,308.64304.20 607,439.755,961,570.864,447.38 0.00 4,870.64 7,400.00 60.34 4,576.57 2,839.87 -4,380.51304.20 607,367.165,961,618.634,496.87 0.00 4,953.66 7,417.23 60.34 4,585.10 2,848.29 -4,392.89304.20 607,354.665,961,626.864,505.40 0.00 4,967.97 Start Dir 4º/100' : 7417.23' MD, 4585.1'TVD 7,500.00 62.23 4,624.87 2,890.70 -4,451.78307.30 607,295.155,961,668.384,545.17 4.00 5,037.87 7,600.00 64.61 4,669.63 2,947.10 -4,521.15310.89 607,224.955,961,723.744,589.93 4.00 5,125.25 7,604.85 64.73 4,671.70 2,949.98 -4,524.46311.06 607,221.605,961,726.574,592.00 4.00 5,129.56 NB 7,700.00 67.07 4,710.56 3,008.89 -4,588.25314.35 607,156.955,961,784.524,630.86 4.00 5,215.41 7,800.00 69.61 4,747.48 3,075.76 -4,652.77317.68 607,091.455,961,850.414,667.78 4.00 5,307.92 7,900.00 72.20 4,780.20 3,147.38 -4,714.37320.90 607,028.805,961,921.114,700.50 4.00 5,402.33 7,924.98 72.86 4,787.70 3,165.98 -4,729.27321.69 607,013.625,961,939.484,708.00 4.00 5,426.16 OA 8,000.00 74.85 4,808.57 3,223.42 -4,772.76324.03 606,969.285,961,996.264,728.87 4.00 5,498.19 8,100.00 77.54 4,832.44 3,303.49 -4,827.67327.08 606,913.205,962,075.504,752.74 4.00 5,595.01 8,115.37 77.95 4,835.70 3,316.13 -4,835.78327.54 606,904.905,962,088.024,756.00 4.00 5,609.95 OBA 8,200.00 80.26 4,851.70 3,387.21 -4,878.81330.07 606,860.825,962,158.454,772.00 4.00 5,692.34 8,279.83 82.45 4,863.70 3,456.39 -4,916.77332.42 606,821.845,962,227.044,784.00 4.00 5,770.07 OBB 8,299.82 83.00 4,866.23 3,474.02 -4,925.87333.00 606,812.485,962,244.534,786.53 4.00 5,789.52 End Dir : 8299.82' MD, 4866.23' TVD 8,400.00 83.00 4,878.44 3,562.61 -4,971.01333.00 606,766.035,962,332.444,798.74 0.00 5,886.91 8,500.00 83.00 4,890.63 3,651.05 -5,016.07333.00 606,719.665,962,420.194,810.93 0.00 5,984.12 8,508.80 83.00 4,891.70 3,658.83 -5,020.03333.00 606,715.595,962,427.914,812.00 0.00 5,992.67 OBC 8,549.82 83.00 4,896.70 3,695.11 -5,038.52333.00 606,696.565,962,463.904,817.00 0.00 6,032.55 Start Dir 5º/100' : 8549.82' MD, 4896.7'TVD 8,560.93 83.56 4,898.00 3,704.94 -5,043.53333.00 606,691.415,962,473.664,818.30 5.00 6,043.35 7" x 8 1/2" 8,600.00 85.51 4,901.72 3,739.59 -5,061.18333.00 606,673.245,962,508.044,822.02 5.00 6,081.44 8,704.82 90.75 4,905.14 3,832.90 -5,108.73333.00 606,624.325,962,600.634,825.44 5.00 6,184.02 End Dir : 8704.82' MD, 4905.14' TVD 8,800.00 90.75 4,903.90 3,917.70 -5,151.94333.00 606,579.865,962,684.774,824.20 0.00 6,277.23 8,900.00 90.75 4,902.59 4,006.79 -5,197.33333.00 606,533.155,962,773.174,822.89 0.00 6,375.16 9,000.00 90.75 4,901.28 4,095.89 -5,242.73333.00 606,486.445,962,861.574,821.58 0.00 6,473.09 9,100.00 90.75 4,899.97 4,184.98 -5,288.12333.00 606,439.725,962,949.974,820.27 0.00 6,571.03 9,200.00 90.75 4,898.66 4,274.07 -5,333.52333.00 606,393.015,963,038.374,818.96 0.00 6,668.96 9,300.00 90.75 4,897.35 4,363.17 -5,378.91333.00 606,346.305,963,126.774,817.65 0.00 6,766.89 9,400.00 90.75 4,896.04 4,452.26 -5,424.31333.00 606,299.595,963,215.174,816.34 0.00 6,864.83 9,500.00 90.75 4,894.73 4,541.35 -5,469.70333.00 606,252.885,963,303.574,815.03 0.00 6,962.76 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 5 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Inclination (°) Azimuth (°) +E/-W (usft) Map Northing (usft) Map Easting (usft) +N/-S (usft) Planned Survey Vertical Depth (usft) TVDss usft DLS 4,813.73 Vert Section 9,600.00 90.75 4,893.43 4,630.44 -5,515.10333.00 606,206.175,963,391.974,813.73 0.00 7,060.69 9,704.82 90.75 4,892.05 4,723.83 -5,562.68333.00 606,157.215,963,484.634,812.35 0.00 7,163.34 Start Dir 1º/100' : 9704.82' MD, 4892.05'TVD 9,779.82 90.00 4,891.56 4,790.66 -5,596.73333.00 606,122.175,963,550.934,811.86 1.00 7,236.80 End Dir : 9779.82' MD, 4891.56' TVD 9,800.00 90.00 4,891.56 4,808.64 -5,605.89333.00 606,112.745,963,568.784,811.86 0.00 7,256.56 9,900.00 90.00 4,891.56 4,897.74 -5,651.29333.00 606,066.035,963,657.184,811.86 0.00 7,354.50 10,000.00 90.00 4,891.56 4,986.84 -5,696.69333.00 606,019.315,963,745.594,811.86 0.00 7,452.44 10,100.00 90.00 4,891.56 5,075.94 -5,742.09333.00 605,972.605,963,834.004,811.86 0.00 7,550.39 10,200.00 90.00 4,891.56 5,165.04 -5,787.49333.00 605,925.885,963,922.414,811.86 0.00 7,648.33 10,300.00 90.00 4,891.56 5,254.14 -5,832.89333.00 605,879.175,964,010.824,811.86 0.00 7,746.27 10,400.00 90.00 4,891.56 5,343.24 -5,878.28333.00 605,832.455,964,099.224,811.86 0.00 7,844.21 10,500.00 90.00 4,891.56 5,432.34 -5,923.68333.00 605,785.745,964,187.634,811.86 0.00 7,942.15 10,600.00 90.00 4,891.56 5,521.44 -5,969.08333.00 605,739.025,964,276.044,811.86 0.00 8,040.09 10,700.00 90.00 4,891.56 5,610.54 -6,014.48333.00 605,692.305,964,364.454,811.86 0.00 8,138.03 10,800.00 90.00 4,891.56 5,699.64 -6,059.88333.00 605,645.595,964,452.854,811.86 0.00 8,235.97 10,900.00 90.00 4,891.56 5,788.74 -6,105.28333.00 605,598.875,964,541.264,811.86 0.00 8,333.92 11,000.00 90.00 4,891.56 5,877.84 -6,150.68333.00 605,552.165,964,629.674,811.86 0.00 8,431.86 11,100.00 90.00 4,891.56 5,966.94 -6,196.08333.00 605,505.445,964,718.084,811.86 0.00 8,529.80 11,200.00 90.00 4,891.56 6,056.05 -6,241.48333.00 605,458.735,964,806.494,811.86 0.00 8,627.74 11,300.00 90.00 4,891.56 6,145.15 -6,286.88333.00 605,412.015,964,894.894,811.86 0.00 8,725.68 11,400.00 90.00 4,891.56 6,234.25 -6,332.27333.00 605,365.305,964,983.304,811.86 0.00 8,823.62 11,500.00 90.00 4,891.56 6,323.35 -6,377.67333.00 605,318.585,965,071.714,811.86 0.00 8,921.56 11,600.00 90.00 4,891.56 6,412.45 -6,423.07333.00 605,271.875,965,160.124,811.86 0.00 9,019.50 11,700.00 90.00 4,891.56 6,501.55 -6,468.47333.00 605,225.155,965,248.534,811.86 0.00 9,117.45 11,800.00 90.00 4,891.56 6,590.65 -6,513.87333.00 605,178.445,965,336.934,811.86 0.00 9,215.39 11,900.00 90.00 4,891.56 6,679.75 -6,559.27333.00 605,131.725,965,425.344,811.86 0.00 9,313.33 12,000.00 90.00 4,891.56 6,768.85 -6,604.67333.00 605,085.015,965,513.754,811.86 0.00 9,411.27 12,100.00 90.00 4,891.56 6,857.95 -6,650.07333.00 605,038.295,965,602.164,811.86 0.00 9,509.21 12,200.00 90.00 4,891.56 6,947.05 -6,695.47333.00 604,991.575,965,690.574,811.86 0.00 9,607.15 12,300.00 90.00 4,891.56 7,036.15 -6,740.87333.00 604,944.865,965,778.974,811.86 0.00 9,705.09 12,400.00 90.00 4,891.56 7,125.25 -6,786.27333.00 604,898.145,965,867.384,811.86 0.00 9,803.03 12,500.00 90.00 4,891.56 7,214.35 -6,831.66333.00 604,851.435,965,955.794,811.86 0.00 9,900.98 12,600.00 90.00 4,891.56 7,303.45 -6,877.06333.00 604,804.715,966,044.204,811.86 0.00 9,998.92 12,700.00 90.00 4,891.56 7,392.56 -6,922.46333.00 604,758.005,966,132.614,811.86 0.00 10,096.86 12,800.00 90.00 4,891.56 7,481.66 -6,967.86333.00 604,711.285,966,221.014,811.86 0.00 10,194.80 12,900.00 90.00 4,891.56 7,570.76 -7,013.26333.00 604,664.575,966,309.424,811.86 0.00 10,292.74 13,000.00 90.00 4,891.56 7,659.86 -7,058.66333.00 604,617.855,966,397.834,811.86 0.00 10,390.68 13,099.82 90.00 4,891.56 7,748.80 -7,103.98333.00 604,571.225,966,486.084,811.86 0.00 10,488.45 Start Dir 1.5º/100' : 13099.82' MD, 4891.56'TVD 13,200.00 89.87 4,891.68 7,837.45 -7,150.62331.50 604,523.275,966,574.024,811.98 1.50 10,586.82 13,300.00 89.73 4,892.03 7,924.71 -7,199.47330.01 604,473.135,966,660.534,812.33 1.50 10,685.47 13,401.00 89.60 4,892.61 8,011.51 -7,251.10328.50 604,420.225,966,746.554,812.91 1.50 10,785.51 End Dir : 13401' MD, 4892.61' TVD 13,500.00 89.60 4,893.31 8,095.92 -7,302.83328.50 604,367.255,966,830.174,813.61 0.00 10,883.74 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 6 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Inclination (°) Azimuth (°) +E/-W (usft) Map Northing (usft) Map Easting (usft) +N/-S (usft) Planned Survey Vertical Depth (usft) TVDss usft DLS 4,814.30 Vert Section 13,600.00 89.60 4,894.00 8,181.18 -7,355.07328.50 604,313.745,966,914.644,814.30 0.00 10,982.96 13,700.00 89.60 4,894.70 8,266.44 -7,407.32328.50 604,260.245,966,999.114,815.00 0.00 11,082.18 13,800.00 89.60 4,895.40 8,351.70 -7,459.57328.50 604,206.735,967,083.584,815.70 0.00 11,181.40 13,900.00 89.60 4,896.10 8,436.96 -7,511.82328.50 604,153.225,967,168.044,816.40 0.00 11,280.62 14,000.00 89.60 4,896.80 8,522.23 -7,564.07328.50 604,099.725,967,252.514,817.10 0.00 11,379.84 14,100.00 89.60 4,897.49 8,607.49 -7,616.32328.50 604,046.215,967,336.984,817.79 0.00 11,479.06 14,200.00 89.60 4,898.19 8,692.75 -7,668.57328.50 603,992.705,967,421.454,818.49 0.00 11,578.28 14,300.00 89.60 4,898.89 8,778.01 -7,720.82328.50 603,939.205,967,505.924,819.19 0.00 11,677.50 14,400.00 89.60 4,899.59 8,863.27 -7,773.06328.50 603,885.695,967,590.384,819.89 0.00 11,776.72 14,500.00 89.60 4,900.29 8,948.53 -7,825.31328.50 603,832.185,967,674.854,820.59 0.00 11,875.94 14,600.00 89.60 4,900.99 9,033.80 -7,877.56328.50 603,778.685,967,759.324,821.29 0.00 11,975.16 14,700.00 89.60 4,901.68 9,119.06 -7,929.81328.50 603,725.175,967,843.794,821.98 0.00 12,074.38 14,800.00 89.60 4,902.38 9,204.32 -7,982.06328.50 603,671.665,967,928.264,822.68 0.00 12,173.61 14,900.00 89.60 4,903.08 9,289.58 -8,034.31328.50 603,618.165,968,012.724,823.38 0.00 12,272.83 15,000.00 89.60 4,903.78 9,374.84 -8,086.56328.50 603,564.655,968,097.194,824.08 0.00 12,372.05 15,100.00 89.60 4,904.48 9,460.11 -8,138.80328.50 603,511.155,968,181.664,824.78 0.00 12,471.27 15,200.00 89.60 4,905.17 9,545.37 -8,191.05328.50 603,457.645,968,266.134,825.47 0.00 12,570.49 15,300.00 89.60 4,905.87 9,630.63 -8,243.30328.50 603,404.135,968,350.604,826.17 0.00 12,669.71 15,400.00 89.60 4,906.57 9,715.89 -8,295.55328.50 603,350.635,968,435.064,826.87 0.00 12,768.93 15,500.00 89.60 4,907.27 9,801.15 -8,347.80328.50 603,297.125,968,519.534,827.57 0.00 12,868.15 15,600.00 89.60 4,907.97 9,886.42 -8,400.05328.50 603,243.615,968,604.004,828.27 0.00 12,967.37 15,700.00 89.60 4,908.66 9,971.68 -8,452.30328.50 603,190.115,968,688.474,828.96 0.00 13,066.59 15,800.00 89.60 4,909.36 10,056.94 -8,504.54328.50 603,136.605,968,772.944,829.66 0.00 13,165.81 15,900.00 89.60 4,910.06 10,142.20 -8,556.79328.50 603,083.095,968,857.414,830.36 0.00 13,265.03 16,000.00 89.60 4,910.76 10,227.46 -8,609.04328.50 603,029.595,968,941.874,831.06 0.00 13,364.25 16,100.00 89.60 4,911.46 10,312.73 -8,661.29328.50 602,976.085,969,026.344,831.76 0.00 13,463.47 16,200.00 89.60 4,912.16 10,397.99 -8,713.54328.50 602,922.575,969,110.814,832.46 0.00 13,562.70 16,300.00 89.60 4,912.85 10,483.25 -8,765.79328.50 602,869.075,969,195.284,833.15 0.00 13,661.92 16,400.00 89.60 4,913.55 10,568.51 -8,818.04328.50 602,815.565,969,279.754,833.85 0.00 13,761.14 16,500.00 89.60 4,914.25 10,653.77 -8,870.28328.50 602,762.065,969,364.214,834.55 0.00 13,860.36 16,600.00 89.60 4,914.95 10,739.04 -8,922.53328.50 602,708.555,969,448.684,835.25 0.00 13,959.58 16,700.00 89.60 4,915.65 10,824.30 -8,974.78328.50 602,655.045,969,533.154,835.95 0.00 14,058.80 16,800.00 89.60 4,916.34 10,909.56 -9,027.03328.50 602,601.545,969,617.624,836.64 0.00 14,158.02 16,900.00 89.60 4,917.04 10,994.82 -9,079.28328.50 602,548.035,969,702.094,837.34 0.00 14,257.24 17,000.00 89.60 4,917.74 11,080.08 -9,131.53328.50 602,494.525,969,786.554,838.04 0.00 14,356.46 17,100.00 89.60 4,918.44 11,165.35 -9,183.78328.50 602,441.025,969,871.024,838.74 0.00 14,455.68 17,200.00 89.60 4,919.14 11,250.61 -9,236.02328.50 602,387.515,969,955.494,839.44 0.00 14,554.90 17,300.00 89.60 4,919.83 11,335.87 -9,288.27328.50 602,334.005,970,039.964,840.13 0.00 14,654.12 17,400.00 89.60 4,920.53 11,421.13 -9,340.52328.50 602,280.505,970,124.434,840.83 0.00 14,753.34 17,500.00 89.60 4,921.23 11,506.39 -9,392.77328.50 602,226.995,970,208.894,841.53 0.00 14,852.57 17,600.00 89.60 4,921.93 11,591.65 -9,445.02328.50 602,173.485,970,293.364,842.23 0.00 14,951.79 17,700.00 89.60 4,922.63 11,676.92 -9,497.27328.50 602,119.985,970,377.834,842.93 0.00 15,051.01 17,800.00 89.60 4,923.33 11,762.18 -9,549.52328.50 602,066.475,970,462.304,843.63 0.00 15,150.23 17,900.00 89.60 4,924.02 11,847.44 -9,601.76328.50 602,012.975,970,546.774,844.32 0.00 15,249.45 18,000.00 89.60 4,924.72 11,932.70 -9,654.01328.50 601,959.465,970,631.244,845.02 0.00 15,348.67 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 7 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Inclination (°) Azimuth (°) +E/-W (usft) Map Northing (usft) Map Easting (usft) +N/-S (usft) Planned Survey Vertical Depth (usft) TVDss usft DLS 4,845.72 Vert Section 18,100.00 89.60 4,925.42 12,017.96 -9,706.26328.50 601,905.955,970,715.704,845.72 0.00 15,447.89 18,200.00 89.60 4,926.12 12,103.23 -9,758.51328.50 601,852.455,970,800.174,846.42 0.00 15,547.11 18,300.00 89.60 4,926.82 12,188.49 -9,810.76328.50 601,798.945,970,884.644,847.12 0.00 15,646.33 18,400.00 89.60 4,927.51 12,273.75 -9,863.01328.50 601,745.435,970,969.114,847.81 0.00 15,745.55 18,500.00 89.60 4,928.21 12,359.01 -9,915.26328.50 601,691.935,971,053.584,848.51 0.00 15,844.77 18,600.00 89.60 4,928.91 12,444.27 -9,967.50328.50 601,638.425,971,138.044,849.21 0.00 15,943.99 18,706.00 89.60 4,929.65 12,534.65 -10,022.89328.50 601,581.705,971,227.584,849.95 0.00 16,049.17 Total Depth : 18706' MD, 4929.65' TVD - 4-1/2" x 6 1/8" Target Name - hit/miss target - Shape TVD (usft) Northing (usft) Easting (usft) +N/-S (usft) +E/-W (usft) Targets Dip Angle (°) Dip Dir. (°) Interp @ 4929.65 (Plan: W-235 W-235 W-235 4,929.65 5,971,227.58 601,581.7012,534.65 -10,022.890.00 0.00 - plan hits target center - Point Vertical Depth (usft) Measured Depth (usft) Casing Diameter (") Hole Diameter (")Name Casing Points 4-1/2" x 6 1/8"4,929.6518,706.00 4-1/2 6-1/8 7" x 8 1/2"4,898.008,560.93 78-1/2 9-5/8" x 12 1/4"2,614.003,434.48 9-5/8 12-1/4 Measured Depth (usft) Vertical Depth (usft) Dip Direction (°)Name Lithology Dip (°) Formations Vertical Depth SS 3,231.81 2,513.70 SV3 7,159.81 4,457.70 Ugnu MA 8,279.83 4,863.70 OBB 4,256.25 3,020.70 SV1 4,969.51 3,373.70 Ugnu 4A 7,924.98 4,787.70 OA 8,508.80 4,891.70 OBC 2,047.01 1,879.70 BPERM 5,597.91 3,684.70 UG3 7,604.85 4,671.70 NB 8,115.37 4,835.70 OBA 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 8 Project: Company: Local Co-ordinate Reference: TVD Reference: Site: Hilcorp North Slope, LLC Prudhoe Bay W Standard Proposal Report Well: Wellbore: Plan: W-235 W-235 Survey Calculation Method:Minimum Curvature W-235 prelim @ 79.70usft (Original Well Elev) Design:W-235 wp05 Database:Alaska MD Reference:W-235 prelim @ 79.70usft (Original Well Elev) North Reference: Well Plan: W-235 True Measured Depth (usft) Vertical Depth (usft) +E/-W (usft) +N/-S (usft) Local Coordinates Comment Plan Annotations 350.00 350.00 0.00 0.00 Start Dir 2º/100' : 350' MD, 350'TVD 650.00 649.45 1.37 -15.63 Start Dir 3º/100' : 650' MD, 649.45'TVD 2,519.13 2,160.99 455.97 -872.68 End Dir : 2519.13' MD, 2160.99' TVD 7,417.23 4,585.10 2,848.29 -4,392.89 Start Dir 4º/100' : 7417.23' MD, 4585.1'TVD 8,299.82 4,866.23 3,474.02 -4,925.87 End Dir : 8299.82' MD, 4866.23' TVD 8,549.82 4,896.70 3,695.11 -5,038.52 Start Dir 5º/100' : 8549.82' MD, 4896.7'TVD 8,704.82 4,905.14 3,832.90 -5,108.73 End Dir : 8704.82' MD, 4905.14' TVD 9,704.82 4,892.05 4,723.83 -5,562.68 Start Dir 1º/100' : 9704.82' MD, 4892.05'TVD 9,779.82 4,891.56 4,790.66 -5,596.73 End Dir : 9779.82' MD, 4891.56' TVD 13,099.82 4,891.56 7,748.80 -7,103.98 Start Dir 1.5º/100' : 13099.82' MD, 4891.56'TVD 13,401.00 4,892.61 8,011.51 -7,251.10 End Dir : 13401' MD, 4892.61' TVD 18,706.00 4,929.65 12,534.65 -10,022.89 Total Depth : 18706' MD, 4929.65' TVD 7/17/2025 12:39:27PM COMPASS 5000.17 Build 04 Page 9 Clearance SummaryAnticollision Report17 July, 2025Hilcorp North Slope, LLCPrudhoe BayWPlan: W-235W-235W-235 wp05Reference Design: W - Plan: W-235 - W-235 - W-235 wp05Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference)Well Coordinates: 5,958,844.46 N, 611,789.05 E (70° 17' 47.47" N, 149° 05' 41.14" W)Datum Height: W-235 prelim @ 79.70usft (Original Well Elev)Scan Range: 0.00 to 18,706.00 usft. Measured Depth.Geodetic Scale Factor AppliedVersion: 5000.17 Build: 04Scan Radius is Unlimited . Clearance Factor cutoff is Unlimited. Max Ellipse Separation is 1,000.00 usftNO GLOBAL FILTER: Using user defined selection & filtering criteriaScan Type:Scan Type:25.00 Prudhoe BayHilcorp North Slope, LLCAnticollision Report for Plan: W-235 - W-235 wp05Comparison Well Name - Wellbore Name - Design@MeasuredDepth(usft)MinimumDistance(usft)EllipseSeparation(usft)@MeasuredDepthusftClearanceFactorScan Radius is Unlimited . Clearance Factor cutoff is Unlimited. Max Ellipse Separation is 1,000.00 usftSite NameScan Range: 0.00 to 18,706.00 usft. Measured Depth. Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference)Reference Design: W - Plan: W-235 - W-235 - W-235 wp05MeasuredDepth(usft)Summary Based on MinimumSeparation WarningEX WETWWETW - WETW - WETW 550.46 4,328.50 482.19 3,005.87 8.0624,328.50Clearance Factor Pass - WPlan: W-35 - Plan: W-35A - W-35A wp08 157.63 26.50 156.07 26.50 100.53826.50Centre Distance Pass - Plan: W-35 - Plan: W-35A - W-35A wp08 159.28 725.00 149.87 723.43 16.928725.00Ellipse Separation Pass - Plan: W-35 - Plan: W-35A - W-35A wp08 1,002.84 18,706.00 563.51 19,227.94 2.28318,706.00Clearance Factor Pass - Plan: W-35 - Plan: W-35A PH1 - W-35A PH1 wp08 157.63 26.50 156.07 26.50 100.53826.50Centre Distance Pass - Plan: W-35 - Plan: W-35A PH1 - W-35A PH1 wp08 159.28 725.00 149.87 723.43 16.928725.00Ellipse Separation Pass - Plan: W-35 - Plan: W-35A PH1 - W-35A PH1 wp08 443.16 16,025.00 254.96 17,055.29 2.35516,025.00Clearance Factor Pass - Plan: W-35 - W-35 - W-35 157.63 26.50 156.07 37.75 100.53826.50Centre Distance Pass - Plan: W-35 - W-35 - W-35 159.28 725.00 149.87 734.68 16.928725.00Ellipse Separation Pass - Plan: W-35 - W-35 - W-35 179.25 1,100.00 165.43 1,098.17 12.9641,100.00Clearance Factor Pass - W-241 - W-241 - W-241143.0717,946.32-34.9417,615.000.80417,946.32Clearance FactorFAIL - W-241 - W-241PB1 - W-241PB1 669.71 4,778.50 583.23 4,387.47 7.7454,778.50Centre Distance Pass - W-241 - W-241PB1 - W-241PB1 672.77 5,075.00 580.66 4,676.50 7.3045,075.00Ellipse Separation Pass - W-241 - W-241PB1 - W-241PB1 934.68 13,275.00 672.90 12,594.72 3.57113,275.00Clearance Factor Pass - W-26 - W-26B - W-26B56.9110,011.9810.6810,025.831.23110,011.98Centre DistancePass - W-26 - W-26B - W-26B133.9016,650.00-65.3116,669.420.67216,650.00Clearance FactorFAIL - W-26 - W-26B - W-26B155.4316,750.00-71.4316,759.160.68516,750.00Ellipse SeparationFAIL - W-34 - W-34 - W-34 191.87 585.20 186.01 595.54 32.729585.20Centre Distance Pass - W-34 - W-34 - W-34 192.41 725.00 185.33 734.57 27.165725.00Ellipse Separation Pass - W-34 - W-34 - W-34 213.76 1,150.00 203.23 1,145.43 20.3031,150.00Clearance Factor Pass - W-34 - W-34A - W-34A 191.87 585.20 186.01 595.54 32.729585.20Centre Distance Pass - W-34 - W-34A - W-34A 192.41 725.00 185.33 734.57 27.165725.00Ellipse Separation Pass - W-34 - W-34A - W-34A 213.76 1,150.00 203.23 1,145.43 20.3031,150.00Clearance Factor Pass - W-34 - W-34APB1 - W-34APB1 191.87 585.20 186.01 595.54 32.729585.20Centre Distance Pass - W-34 - W-34APB1 - W-34APB1 192.41 725.00 185.33 734.57 27.165725.00Ellipse Separation Pass - W-34 - W-34APB1 - W-34APB1 213.76 1,150.00 203.23 1,145.43 20.3031,150.00Clearance Factor Pass - 17 July, 2025 - 12:46COMPASSPage 2 of 8 Prudhoe BayHilcorp North Slope, LLCAnticollision Report for Plan: W-235 - W-235 wp05Comparison Well Name - Wellbore Name - Design@MeasuredDepth(usft)MinimumDistance(usft)EllipseSeparation(usft)@MeasuredDepthusftClearanceFactorScan Radius is Unlimited . Clearance Factor cutoff is Unlimited. Max Ellipse Separation is 1,000.00 usftSite NameScan Range: 0.00 to 18,706.00 usft. Measured Depth. Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference)Reference Design: W - Plan: W-235 - W-235 - W-235 wp05MeasuredDepth(usft)Summary Based on MinimumSeparation WarningW-36 - W-36 - W-36 120.71 652.50 115.79 664.13 24.542652.50Centre Distance Pass - W-36 - W-36 - W-36 120.86 700.00 115.65 711.29 23.197700.00Ellipse Separation Pass - W-36 - W-36 - W-36 138.35 1,000.00 131.25 1,003.52 19.4751,000.00Clearance Factor Pass - W-37 - W-37 - W-37 86.25 573.73 81.74 584.99 19.134573.73Centre Distance Pass - W-37 - W-37 - W-37 86.37 625.00 81.55 636.05 17.916625.00Ellipse Separation Pass - W-37 - W-37 - W-37 97.03 875.00 90.65 882.82 15.217875.00Clearance Factor Pass - W-37 - W-37A - W-37A 86.25 573.73 81.74 584.99 19.134573.73Centre Distance Pass - W-37 - W-37A - W-37A 86.37 625.00 81.55 636.05 17.916625.00Ellipse Separation Pass - W-37 - W-37A - W-37A 97.03 875.00 90.65 882.82 15.217875.00Clearance Factor Pass - W-38 - W-38 - W-38 37.43 787.23 31.67 801.74 6.499787.23Centre Distance Pass - W-38 - W-38 - W-38 37.50 800.00 31.66 814.47 6.423800.00Ellipse Separation Pass - W-38 - W-38 - W-38 38.07 825.00 32.07 839.32 6.351825.00Clearance Factor Pass - W-38 - W-38A - W-38A 37.43 787.23 31.67 799.09 6.499787.23Centre Distance Pass - W-38 - W-38A - W-38A 37.50 800.00 31.66 811.82 6.423800.00Ellipse Separation Pass - W-38 - W-38A - W-38A 38.07 825.00 32.07 836.67 6.351825.00Clearance Factor Pass - W-39 - W-39 - W-39 17.14 473.43 10.79 484.85 2.698473.43Centre Distance Pass - W-39 - W-39 - W-39 17.35 525.00 10.38 536.35 2.488525.00Ellipse Separation Pass - W-39 - W-39 - W-39 18.23 575.00 10.65 586.23 2.406575.00Clearance Factor Pass - W-39 - W-39A - W-39A 17.14 473.43 10.79 484.85 2.698473.43Centre Distance Pass - W-39 - W-39A - W-39A 17.35 525.00 10.38 536.35 2.488525.00Ellipse Separation Pass - W-39 - W-39A - W-39A 18.23 575.00 10.65 586.23 2.406575.00Clearance Factor Pass - W-40 - W-40 - W-40 17.40 180.45 15.27 193.04 8.148180.45Centre Distance Pass - W-40 - W-40 - W-40 17.97 475.00 14.15 487.58 4.697475.00Ellipse Separation Pass - W-40 - W-40 - W-40 19.18 550.00 14.90 562.42 4.484550.00Clearance Factor Pass - W-40 - W-40A - W-40A 17.40 180.45 15.27 193.04 8.148180.45Centre Distance Pass - W-40 - W-40A - W-40A 17.97 475.00 14.15 487.58 4.697475.00Ellipse Separation Pass - W-40 - W-40A - W-40A 19.18 550.00 14.90 562.42 4.484550.00Clearance Factor Pass - W-400 - W-400 - W-400 49.63 472.25 45.62 476.43 12.390472.25Centre Distance Pass - W-400 - W-400 - W-400 49.77 500.00 45.57 503.96 11.849500.00Ellipse Separation Pass - W-400 - W-400 - W-400 56.32 650.00 51.05 652.54 10.700650.00Clearance Factor Pass - 17 July, 2025 - 12:46COMPASSPage 3 of 8 Prudhoe BayHilcorp North Slope, LLCAnticollision Report for Plan: W-235 - W-235 wp05Comparison Well Name - Wellbore Name - Design@MeasuredDepth(usft)MinimumDistance(usft)EllipseSeparation(usft)@MeasuredDepthusftClearanceFactorScan Radius is Unlimited . Clearance Factor cutoff is Unlimited. Max Ellipse Separation is 1,000.00 usftSite NameScan Range: 0.00 to 18,706.00 usft. Measured Depth. Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference)Reference Design: W - Plan: W-235 - W-235 - W-235 wp05MeasuredDepth(usft)Summary Based on MinimumSeparation WarningW-42 - W-42 - W-42 87.47 26.50 85.90 37.75 55.73926.50Centre Distance Pass - W-42 - W-42 - W-42 88.14 450.00 84.46 461.02 23.920450.00Ellipse Separation Pass - W-42 - W-42 - W-42 103.39 850.00 97.24 857.90 16.819850.00Clearance Factor Pass - W-44 - W-44 - W-44 156.25 368.44 152.98 379.56 47.848368.44Centre Distance Pass - W-44 - W-44 - W-44 156.73 550.00 152.38 561.27 36.058550.00Ellipse Separation Pass - W-44 - W-44 - W-44 2,878.40 7,675.00 2,732.92 7,709.46 19.7857,675.00Clearance Factor Pass - W-45 - W-45 - W-45 121.78 277.55 118.73 277.55 39.871277.55Centre Distance Pass - W-45 - W-45 - W-45 122.34 425.00 118.05 424.17 28.492425.00Ellipse Separation Pass - W-45 - W-45 - W-45 145.42 925.00 136.75 918.19 16.776925.00Clearance Factor Pass - W-51 - W-51 - W-51 170.04 1,679.72 157.29 1,689.52 13.3401,679.72Ellipse Separation Pass - W-51 - W-51 - W-51 172.32 1,750.00 159.19 1,753.46 13.1301,750.00Clearance Factor Pass - W-59 - W-59 - W-59 236.83 377.00 232.73 395.65 57.803377.00Centre Distance Pass - W-59 - W-59 - W-59 236.91 400.00 232.63 416.80 55.307400.00Ellipse Separation Pass - W-59 - W-59 - W-59 1,129.46 3,300.00 1,073.95 2,862.57 20.3463,300.00Clearance Factor Pass - W-59 - W-59PB1 - W-59PB1 236.83 377.00 232.73 395.65 57.803377.00Centre Distance Pass - W-59 - W-59PB1 - W-59PB1 236.91 400.00 232.63 416.80 55.307400.00Ellipse Separation Pass - W-59 - W-59PB1 - W-59PB1 1,129.46 3,300.00 1,072.65 2,862.57 19.8803,300.00Clearance Factor Pass - ZZ-116 - Z-116 - Z-116 462.78 11,350.00 255.92 10,128.95 2.23711,350.00Clearance Factor Pass - Z-116 - Z-116 - Z-116 416.62 11,475.00 240.56 10,176.90 2.36611,475.00Ellipse Separation Pass - Z-116 - Z-116 - Z-116 396.56 11,620.39 252.56 10,236.59 2.75411,620.39Centre Distance Pass - Z-116 - Z-116PB1 - Z-116PB1 462.78 11,350.00 255.92 10,128.95 2.23711,350.00Clearance Factor Pass - Z-116 - Z-116PB1 - Z-116PB1 416.62 11,475.00 240.56 10,176.90 2.36611,475.00Ellipse Separation Pass - Z-116 - Z-116PB1 - Z-116PB1 396.56 11,620.39 252.56 10,236.59 2.75411,620.39Centre Distance Pass - Z-116 - Z-116PB2 - Z-116PB2 462.78 11,350.00 255.92 10,128.95 2.23711,350.00Clearance Factor Pass - Z-116 - Z-116PB2 - Z-116PB2 416.62 11,475.00 240.56 10,176.90 2.36611,475.00Ellipse Separation Pass - Z-116 - Z-116PB2 - Z-116PB2 396.56 11,620.39 252.56 10,236.59 2.75411,620.39Centre Distance Pass - Z-220 - Z-220 - Z-220 470.98 16,650.00 174.21 17,691.00 1.58716,650.00Clearance Factor Pass - Z-220 - Z-220 - Z-220 466.08 16,717.69 181.36 17,691.00 1.63716,717.69Centre Distance Pass - 17 July, 2025 - 12:46COMPASSPage 4 of 8 Prudhoe BayHilcorp North Slope, LLCAnticollision Report for Plan: W-235 - W-235 wp05Comparison Well Name - Wellbore Name - Design@MeasuredDepth(usft)MinimumDistance(usft)EllipseSeparation(usft)@MeasuredDepthusftClearanceFactorScan Radius is Unlimited . Clearance Factor cutoff is Unlimited. Max Ellipse Separation is 1,000.00 usftSite NameScan Range: 0.00 to 18,706.00 usft. Measured Depth. Closest Approach 3D Proximity Scan on Current Survey Data (Highside Reference)Reference Design: W - Plan: W-235 - W-235 - W-235 wp05MeasuredDepth(usft)Summary Based on MinimumSeparation WarningZ-221 - Z-221 - Z-221294.9615,125.0019.1317,186.001.06915,125.00Clearance FactorPass - Z-221 - Z-221 - Z-221287.9715,188.8139.6217,186.001.16015,188.81Centre DistancePass - Z-222 - Z-222 - Z-222406.5216,575.0093.7017,618.001.30016,575.00Clearance FactorPass - Z-222 - Z-222 - Z-222399.5216,650.00111.4917,618.001.38716,650.00Centre DistancePass - Z-223 - Z-223 - Z-223367.7714,925.0088.3116,855.001.31614,925.00Clearance FactorPass - Z-223 - Z-223 - Z-223362.1114,989.32102.8916,855.001.39714,989.32Centre DistancePass - Z-228 - Z-228 - Z-228154.1113,387.03-17.8513,725.000.89613,387.03Clearance FactorFAIL - Z-229 - Z-229 - Z-229303.5213,300.0071.6913,305.001.30913,300.00Clearance FactorPass - Z-229 - Z-229 - Z-229302.5513,325.0072.6313,305.001.31613,325.00Centre DistancePass - Z-234 - Z-234 - Z-234 497.16 11,264.36 297.86 12,375.00 2.49411,264.36Centre Distance Pass - Z-234 - Z-234 - Z-234 498.44 11,300.00 295.45 12,375.00 2.45611,300.00Ellipse Separation Pass - Z-234 - Z-234 - Z-234 504.49 11,350.00 297.10 12,375.00 2.43311,350.00Clearance Factor Pass - Z-235 - Z-235 - Z-235 528.74 11,195.23 339.45 11,920.00 2.79311,195.23Centre Distance Pass - Z-235 - Z-235 - Z-235 531.57 11,250.00 337.19 11,920.00 2.73511,250.00Ellipse Separation Pass - Z-235 - Z-235 - Z-235 539.02 11,300.00 340.50 11,920.00 2.71511,300.00Clearance Factor Pass - Survey tool programFrom(usft)To(usft)Survey/Plan Survey Tool26.50 1,000.00 W-235 wp05 GYD_Quest GWD1,000.00 3,435.00 W-235 wp05 3_MWD+IFR2+MS+Sag3,435.00 8,561.00 W-235 wp05 3_MWD+IFR2+MS+Sag8,561.00 18,706.00 W-235 wp05 3_MWD+IFR2+MS+Sag17 July, 2025 - 12:46COMPASSPage 5 of 8 Prudhoe BayHilcorp North Slope, LLCAnticollision Report for Plan: W-235 - W-235 wp05Ellipse error terms are correlated across survey tool tie-on points.Separation is the actual distance between ellipsoids.Calculated ellipses incorporate surface errors.Clearance Factor = Distance Between Profiles / (Distance Between Profiles - Ellipse Separation).Distance Between centres is the straight line distance between wellbore centres.All station coordinates were calculated using the Minimum Curvature method.17 July, 2025 - 12:46COMPASSPage 6 of 8 0.001.002.003.004.00Separation Factor975 1950 2925 3900 4875 5850 6825 7800 8775 9750 10725 11700 12675 13650 14625 15600 16575 17550 18525Measured Depth (1950 usft/in)Z-235Z-223Z-229Z-222Z-220Z-221Z-116Z-234Z-228W-241W-26BW-35A wp08W-39AW-39W-40No-Go Zone - Stop DrillingCollision Avoidance RequiredCollision Risk Procedures Req.WELL DETAILS:Plan: W-235 NAD 1927 (NADCON CONUS)Alaska Zone 0453.20+N/-S +E/-W Northing Easting Latittude Longitude0.000.005958844.46611789.0570° 17' 47.4653 N149° 5' 41.1373 WREFERENCE INFORMATIONCo-ordinate (N/E) Reference:Well Plan: W-235, True NorthVertical (TVD) Reference: W-235 prelim @ 79.70usft (Original Well Elev)Measured Depth Reference:W-235 prelim @ 79.70usft (Original Well Elev)Calculation Method:Minimum CurvatureSURVEY PROGRAMDate: 2025-07-14T00:00:00 Validated: Yes Version: Depth From Depth To Survey/PlanTool26.50 1000.00 W-235 wp05 (W-235) GYD_Quest GWD1000.00 3435.00 W-235 wp05 (W-235) 3_MWD+IFR2+MS+Sag3435.00 8561.00 W-235 wp05 (W-235) 3_MWD+IFR2+MS+Sag8561.00 18706.00 W-235 wp05 (W-235) 3_MWD+IFR2+MS+Sag0.0030.0060.0090.00120.00150.00180.00Centre to Centre Separation (60.00 usft/in)975 1950 2925 3900 4875 5850 6825 7800 8775 9750 10725 11700 12675 13650 14625 15600 16575 17550 18525Measured Depth (1950 usft/in)W-36W-26BW-26BW-26BW-42W-400W-38W-39NO GLOBAL FILTER: Using user defined selection & filtering criteria26.50 To 18706.00Project: Prudhoe BaySite: WWell: Plan: W-235Wellbore: W-235Plan: W-235 wp05CASING DETAILSTVD TVDSS MD Size Name2614.00 2534.30 3434.48 9-5/8 9-5/8" x 12 1/4"4898.00 4818.30 8560.93 7 7" x 8 1/2"4929.65 4849.95 18706.00 4-1/2 4-1/2" x 6 1/8" 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. From:Davies, Stephen F (OGC) To:Joseph Engel Cc:Dewhurst, Andrew D (OGC); Starns, Ted C (OGC); Lau, Jack J (OGC); Joseph Lastufka; Rixse, Melvin G (OGC) Subject:RE: [EXTERNAL] RE: PBU W-235 (PTD 225-080) - Question Date:Monday, September 8, 2025 3:36:00 PM Attachments:image001.png Hello Joe, Thank you for your detailed response. AOGCC’s position is that this roughly 45-foot thick Ugnu 4A package is oil bearing, it will be a valuable resource at some point in the future, and it needs to be protected per the regulations. We realize that increasing cement height may add challenges to cement design and execution but should be achievable. Please submit a revised cementing plan for W-235 as soon as is practical to keep this Permit to Drill application moving forward through our review process. Thanks Again for Your Help, Steve Davies AOGCC 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 Steve Davies at 907-793-1224 or steve.davies@alaska.gov. From: Joseph Engel <jengel@hilcorp.com> Sent: Friday, September 5, 2025 4:50 PM To: Davies, Stephen F (OGC) <steve.davies@alaska.gov> Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Starns, Ted C (OGC) <ted.starns@alaska.gov>; Lau, Jack J (OGC) <jack.lau@alaska.gov>; Joseph Lastufka <Joseph.Lastufka@hilcorp.com> Subject: RE: [EXTERNAL] RE: PBU W-235 (PTD 225-080) - Question Steve – Thanks for the message. My email was typed incorrectly (last name misspelled) and none of your messages were received. Luckily, Joe Lastufka caught the third attempt and forwarded it to me. To update your records, my email is jengel@hilcorp.com. Regarding TOC for the 7” intermediate on W-235. W-235 is a producer well in the Schrader Bluff OBc, directly above the two well pattern development of the same fault block in the OBd of W-26B and W-241. The best analogs would be those wells, structure map attached. The proposed TOC for W-235, the Ugnu MA, was based upon the approved TOC for W-241, see approval attached, and adequate isolation of “produceable hydrocarbon zones” (a term used by the AOGCC) on W-26B, see log and approval attached. Both of these wells pass through the same formations in the same fault block as W-235, and it was determined and agreed upon by Hilcorp and the AOGCC that the Ugnu4A was not “significant” or “produceable”. A top of cement of the Ugnu MA will isolate the Ugnu 4A from all formations below it, and keeping cementing volumes to a minimum required will reduce the risk of losses during the cement job, which can impact TOC, as well as allow the use of highest compressive strength cement for the best zonal isolation. If the AOGCC’s interpretation of these formations has changed, please let me know and Hilcorp will adjust its cementing plan for W-235. Hilcorp will follow all regulations as written. Current estimated spud date of W-235 is ~ Sept 13th. Thank you for your time, let me know if you have any further questions. Joe From: Joseph Lastufka <joseph.lastufka@hilcorp.com> Sent: Friday, September 5, 2025 2:02 PM CAUTION: External sender. DO NOT open links or attachments from UNKNOWN senders. To: Joseph Engel <jengel@hilcorp.com> Subject: FW: [EXTERNAL] RE: PBU W-235 (PTD 225-080) - Question Just checking to be sure that you got this… Thanks, Joe Lastufka Sr. Drilling Technologist Hilcorp North Slope, LLC Office: (907)777-8400, Cell:(907)227-8496 From: Davies, Stephen F (OGC) <steve.davies@alaska.gov> Sent: Friday, September 5, 2025 1:54 PM To: 'jengle@hilcorp.com' <jengle@hilcorp.com> Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Starns, Ted C (OGC) <ted.starns@alaska.gov>; Lau, Jack J (OGC) <jack.lau@alaska.gov>; Joseph Lastufka <joseph.lastufka@hilcorp.com> Subject: [EXTERNAL] RE: PBU W-235 (PTD 225-080) - Question Hello Again Joe, A reminder that I’d like to keep this Permit to Drill application moving forward through the AOGCC’s review process, but additional information is still needed from Hilcorp. (See my email of August 28th, below.) The spud date listed in the application is September 10th. Is this date still accurate? Thanks and Be Well, Steve Davies AOGCC From: Davies, Stephen F (OGC) Sent: Thursday, September 4, 2025 3:08 PM To: 'jengle@hilcorp.com' <jengle@hilcorp.com> Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Starns, Ted C (OGC) <ted.starns@alaska.gov>; Lau, Jack J (OGC) <jack.lau@alaska.gov> Subject: RE: PBU W-235 (PTD 225-080) - Question Hello Joe, I just want to ensure that you received by email below regarding PBU W-235. Thanks, Steve Davies AOGCC From: Davies, Stephen F (OGC) Sent: Thursday, August 28, 2025 6:08 PM To: 'jengle@hilcorp.com' <jengle@hilcorp.com> Cc: Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov>; Starns, Ted C (OGC) <ted.starns@alaska.gov> Subject: PBU W-235 (PTD 225-080) - Question Hello Joe, I'm reviewing Hilcorp North Slope, LLC's Permit to Drill Application for PBU W-235 and I have a question. In PBU W-235, Hilcorp proposes to cement the 7-inch intermediate casing string only up to 500’ above the Ugnu MA sand. This is short of a 45-foot- thick hydrocarbon-bearing zone in the Ugnu 4A of nearby well West End 21-11-12 (see below). According to Regulation 20 AAC 25.030(a), each well casing and cementing program must be designed to: (a)(7) “protect significant hydrocarbon zones.” In the past, I’ve heard the term “non-movable” informally applied to Ugnu oil, but that term is not found in Regulation (a)(7). “Non- movable” is also an arbitrary term depending on the technology used and whomever is making that judgement. The Ugnu oil resource will be a valuable resource at some point in the future. Why would Hilcorp not run a stage collar and bring cement the required distance above the top of Ugnu 4A? Especially if WAG injection is ever under consideration for use in this area. Thanks for Your Help and Be Well, Steve Davies Senior Petroleum Geologist AOGCC 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 Steve Davies at 907-793-1224 or steve.davies@alaska.gov. 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. Revised 7/2022 TRANSMITTAL LETTER CHECKLIST WELL NAME: ______________________________________ PTD: _____________________________________________ ___ Development ___ Service ___ Exploratory ___ Stratigraphic Test ___ Non-Conventional FIELD: __________________________ POOL: ____________________________________ Check Box for Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK OPTIONS TEXT FOR APPROVAL LETTER MULTI LATERAL (If last two digits in API number are between 60-69) The permit is for a new wellbore segment of existing well Permit Number _____________, API Number 50-______________________. Production from or injection into this wellbore must be reported under the original API Number stated above. Spacing Exception The permit is approved subject to full compliance with 20 AAC 25.055. Approval to produce or inject is contingent upon issuance of a conservation order approving a spacing exception. The Operator assumes the liability of any protest to the spacing exception that may occur. Dry Ditch Sample All dry ditch sample sets submitted to the AOGCC must be in no greater than 30-foot sample intervals from below the permafrost or from where samples are first caught and 10-foot sample intervals through target zones. Non- Conventional Well Please note the following special condition of this permit: Production or production testing of coal bed methane is not allowed for this well until after the Operator has designed and implemented a water-well testing program to provide baseline data on water quality and quantity. The Operator must contact the AOGCC to obtain advance approval of such a water-well testing program. Well Logging Requirements 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 the Operator in the attached application, the following well logs are also required for this well: Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for all well logs run must be submitted to the AOGCC within 90 days after completion, suspension, or abandonment of this well, or within 90 days of acquisition of the data, whichever occurs first. PBU W-235 225-080 PRUDHOE BAY, SCHRADER BLUFF OILPRUDHOE BAY WELL PERMIT CHECKLISTCompanyHilcorp North Slope, LLCWell Name:PRUDHOE BAY UN ORIN W-235Initial Class/TypeDEV / PENDGeoArea890Unit11650On/Off ShoreOnProgramDEVWell bore segAnnular DisposalPTD#:2250800Field & Pool:PRUDHOE BAY, SCHRADER BLUF OIL - 640135NA1 Permit fee attachedYes2 Lease number appropriateYes Surface Location lies within ADL0028263; Top Productive Interval lies in ADL0392959; 3 Unique well name and numberYes TD lies within ADL0047450.4 Well located in a defined poolYes PRUDHOE BAY, SCHRADER BLUF OIL - 640135 - governed by CO 505B, 505B.0045 Well located proper distance from drilling unit boundaryYes6 Well located proper distance from other wellsYes7 Sufficient acreage available in drilling unitYes8 If deviated, is wellbore plat includedYes9 Operator only affected partyYes10 Operator has appropriate bond in forceYes11 Permit can be issued without conservation orderYes12 Permit can be issued without administrative approvalYes13 Can permit be approved before 15-day waitNA14 Well located within area and strata authorized by Injection Order # (put IO# in comments) (For sNA15 All wells within 1/4 mile area of review identified (For service well only)NA16 Pre-produced injector: duration of pre-production less than 3 months (For service well only)NA17 Nonconven. gas conforms to AS31.05.030(j.1.A),(j.2.A-D)Yes18 Conductor string providedYes19 Surface casing protects all known USDWsYes20 CMT vol adequate to circulate on conductor & surf csgYes21 CMT vol adequate to tie-in long string to surf csgYes22 CMT will cover all known productive horizonsYes23 Casing designs adequate for C, T, B & permafrostYes24 Adequate tankage or reserve pitNA25 If a re-drill, has a 10-403 for abandonment been approvedYes26 Adequate wellbore separation proposedYes27 If diverter required, does it meet regulationsYes28 Drilling fluid program schematic & equip list adequateYes29 BOPEs, do they meet regulationYes 5000 psi.30 BOPE press rating appropriate; test to (put psig in comments)Yes31 Choke manifold complies w/API RP-53 (May 84)Yes32 Work will occur without operation shutdownYes Minimal, there are no wells with H2S 100ppm or greater.33 Is presence of H2S gas probableNA34 Mechanical condition of wells within AOR verified (For service well only)No W-Pad is an H2S pad. Measures required.35 Permit can be issued w/o hydrogen sulfide measuresYes Expected pressure is 0.44 psi/ft (8.5 ppg EMW). Operator's planned mud program36 Data presented on potential overpressure zonesNA appears sufficient to control anticipated pressures and maintain wellbore stability.37 Seismic analysis of shallow gas zonesNA38 Seabed condition survey (if off-shore)NA39 Contact name/phone for weekly progress reports [exploratory only]ApprSFDDate8/28/2025ApprJJLDate9/10/2025ApprSFDDate8/28/2025AdministrationEngineeringGeologyGeologic Commissioner:Date:Engineering Commissioner:DatePublic CommissionerDateJLC 9/10/2025