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Home My WebLink About221-029From:Heusser, Heather A (DNR) To:Guhl, Meredith D (OGC) Cc:Morgan, Kirk A (DNR) Subject:RE: Hilcorp Strat Test wells approaching release dates Date:Thursday, August 31, 2023 5:16:35 PM Hi Meredith, I heard back from the Director’s Office. We have received no requests for extended well confidentiality. Thank you, Heather Ann Heusser Natural Resource Specialist IV State of Alaska Department of Natural Resources Division of Oil and Gas 550 West 7th Avenue, Suite 1100 Anchorage AK 99501-3560 heather.heusser@alaska.gov From: Guhl, Meredith D (OGC) <meredith.guhl@alaska.gov> Sent: Monday, August 28, 2023 7:28 AM To: Heusser, Heather A (DNR) <heather.heusser@alaska.gov> Cc: Morgan, Kirk A (DNR) <kirk.morgan@alaska.gov> Subject: RE: Hilcorp Strat Test wells approaching release dates Good Morning Heather, We’ve now passed the release date for all strat test wells on the list below. Has Hilcorp requested extended confidentiality for any of these wells, or can the AOGCC release the well data and the well history files? Thank you, Meredith Meredith Guhl (she/her) Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. From: Heusser, Heather A (DNR) <heather.heusser@alaska.gov> Sent: Tuesday, July 25, 2023 10:49 AM To: Guhl, Meredith D (OGC) <meredith.guhl@alaska.gov> Cc: Morgan, Kirk A (DNR) <kirk.morgan@alaska.gov> Subject: RE: Hilcorp Strat Test wells approaching release dates Good morning, Meredith, I have been out of the office. I am checking into this. I will update you when I know more. Heather Ann Heusser Natural Resource Specialist IV State of Alaska Department of Natural Resources Division of Oil and Gas 550 West 7th Avenue, Suite 1100 Anchorage AK 99501-3560 heather.heusser@alaska.gov From: Guhl, Meredith D (OGC) <meredith.guhl@alaska.gov> Sent: Friday, July 14, 2023 10:18 AM To: Heusser, Heather A (DNR) <heather.heusser@alaska.gov> Subject: Hilcorp Strat Test wells approaching release dates Good Morning Heather, I have a whole list of Hilcorp stratigraphic test wells approaching their release dates over the next month between July 23 and August 23: Expected Release Date Date Completed API Number Permit Number Operator Well Name Well Number 7/23/2023 6/23/2021 50-091-20005-00-00 221-030-0 Hilcorp Alaska, LLC BIRCH CREEK 4 7/28/2023 6/28/2021 50-091-20004-00-00 221-029-0 Hilcorp Alaska, LLC BIRCH CREEK 3 7/30/2023 6/30/2021 50-091-20002-00-00 221-027-0 Hilcorp Alaska, LLC BIRCH CREEK 1 8/3/2023 7/3/2021 50-091-20013-00-00 221-038-0 Hilcorp Alaska, LLC CANVASBACK 6 8/5/2023 7/5/2021 50-091-20010-00-00 221-035-0 Hilcorp Alaska, LLC CANVASBACK 3 8/8/2023 7/8/2021 50-091-20009-00-00 221-034-0 Hilcorp Alaska, LLC CANVASBACK 2 8/10/2023 7/10/2021 50-091-20008-00-00 221-033-0 Hilcorp Alaska, LLC CANVASBACK 1 8/12/2023 7/12/2021 50-091-20011-00-00 221-036-0 Hilcorp Alaska, LLC CANVASBACK 4 8/13/2023 7/13/2021 50-091-20012-00-00 221-037-0 Hilcorp Alaska, LLC CANVASBACK 5 8/16/2023 7/16/2021 50-091-20007-00-00 221-032-0 Hilcorp Alaska, LLC BIRCH CREEK 6 8/19/2023 7/19/2021 50-091-20003-00-00 221-028-0 Hilcorp Alaska, LLC BIRCH CREEK SE 1 8/21/2023 7/21/2021 50-091-20006-00-00 221-031-0 Hilcorp Alaska, LLC BIRCH CREEK 5 8/23/2023 7/23/2021 50-091-20015-00-00 221-040-0 Hilcorp Alaska, LLC SALOON ISLAND 2 Please advise if Hilcorp has requested extended confidentiality for any of these stratigraphic test wells. Thank you, Meredith Meredith Guhl (she/her) Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. DATA SUBMITTAL COMPLIANCE REPORTAPI No. 50-091-20004-00-00Well Name/No. BIRCH CREEK 3Completion StatusP&ACompletion Date6/28/2021Permit to Drill2210290Operator Hilcorp Alaska, LLCMD250TVD250Current StatusP&A10/28/2021UICNoWell Log Information:DigitalMed/FrmtReceivedStart StopOH /CHCommentsLogMediaRunNoElectr DatasetNumberNameIntervalWell Cores/Samples Information:ReceivedStart Stop CommentsTotalBoxesSample SetNumberNameIntervalList of Logs Obtained:GR, Res, Temp, SP, Sonic, Lithology LogYesNoNoMud Log Samples Directional SurveyREQUIRED INFORMATION(from Master Well Data/Logs)DATA INFORMATIONLog/DataTypeLogScaleINFORMATION RECEIVEDCompletion ReportProduction Test InformationGeologic Markers/TopsY Y / NAYMud Logs, Image Files, Digital DataComposite Logs, Image, Data Files Cuttings SamplesY / NAYY / NADirectional / Inclination DataMechanical Integrity Test InformationDaily Operations SummaryYY / NAYCore ChipsCore PhotographsLaboratory AnalysesY / NAY / NAY / NACOMPLIANCE HISTORYDF9/24/2021 Electronic File: BIRCH CREEK 3 GR-SP-RES-SONIC-TEMP 28JUN2021 (12in=100ft).pdf35687EDDigital DataDF9/24/2021 Electronic File: BIRCH CREEK 3 GR-SP-RES-SONIC-TEMP 28JUN2021 (6in=100ft).pdf35687EDDigital DataDF9/24/2021 Electronic File: BIRCH CREEK 3 GR-SP-RES-SONIC-TEMP 28JUN2021.xlsx35687EDDigital DataDF10/27/20211 250 Electronic Data Set, Filename: BIRCH CREEK 3 GR-SP-RES-SONIC-TEMP 28JUN2021.las35687EDDigital DataDF9/24/20210 250 Electronic Data Set, Filename: Birch Creek 3 TD 250' LAS.Las35687EDDigital DataDF9/24/2021 Electronic File: Birch Creek 3 Litholog Log 250 ft TD 5in.pdf35687EDDigital Data10/12/2021025011785Core ChipsThursday, October 28, 2021AOGCCPage 1 of 2LithologyYesBIRCH CREEK 3,GR-SP-RES-SONIC-TEMP 28JUN2021.lasBirch Creek 3 TD 250' LAS.Las DATA SUBMITTAL COMPLIANCE REPORTAPI No. 50-091-20004-00-00Well Name/No. BIRCH CREEK 3Completion StatusP&ACompletion Date6/28/2021Permit to Drill2210290Operator Hilcorp Alaska, LLCMD250TVD250Current StatusP&A10/28/2021UICNoComments:Compliance Reviewed By:Date:Date CommentsDescriptionCompletion Date:6/28/2021Release Date:7/28/2023Thursday, October 28, 2021AOGCCPage 2 of 2No core photos or core analysis available. See 10/14/2021 email from David Douglas.M. Guhl1/26/2022 David Douglas Hilcorp Alaska, LLC Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Please acknowledge receipt and return one copy of this transmittal or FAX to 907 564-4424 Received By: Date: Hilcorp North Slope, LLC Date: 10/27/2021 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL Yukon Flats Strat Test Wells *** Confidential *** Open Hole Wireline Logs Folder Contents: Digital Data (LAS Format) Well Name API Permit Log Date Log Type BIRCH CREEK 1 50091200020000 221027 7/01/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 3 50091200040000 221029 6/28/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 4 50091200050000 221030 6/23/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 5 50091200060000 221031 7/21/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 6 50091200070000 221032 7/16/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK SE 1 50091200030000 221028 7/19/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 1 50091200080000 221033 7/11/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 2 50091200090000 221034 7/08/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 3 50091200100000 221035 7/05/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 4 50091200110000 221036 7/12/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 5 50091200120000 221037 7/14/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 6 50091200130000 221038 7/03/2021 GR-SP-TEMP-RES-SONIC SALOON ISLAND 2 50091200150000 221040 7/23/2021 GR-SP-TEMP-RES-SONIC Please include current contact information if different from above. 10/27/2021 From:McLellan, Bryan J (CED) To:Regg, James B (CED); Guhl, Meredith D (CED) Subject:RE: Yukon Basin Strat Test wells site clearances Date:Tuesday, October 19, 2021 3:13:54 PM We did not require an AOGCC site inspection in the PTD for these. We only asked for photos, which were included in the 10-407s. Meredith, Site clearance inspection is not required.. Bryan McLellan Senior Petroleum Engineer Alaska Oil & Gas Conservation Commission 333 W 7th Ave Anchorage, AK 99501 Bryan.mclellan@alaska.gov +1 (907) 250-9193 From: Regg, James B (CED) <jim.regg@alaska.gov> Sent: Tuesday, October 19, 2021 3:05 PM To: McLellan, Bryan J (CED) <bryan.mclellan@alaska.gov> Subject: RE: Yukon Basin Strat Test wells site clearances Do we require location inspections for these? I am not aware of us doing that for any other strat tests so I was not planning on inspections. Also, it is probably too late in the year to do a location inspection unless they are snow/ice free. We have not been contacted by Hilcorp. If land owner is happy with the way the sites have been left we can just accept their inspection (photos?) if one is needed. Jim Regg Supervisor, Inspections AOGCC 333 W. 7th Ave, Suite 100 Anchorage, AK 99501 907-793-1236 From: McLellan, Bryan J (CED) <bryan.mclellan@alaska.gov> Sent: Tuesday, October 19, 2021 1:41 PM To: Regg, James B (CED) <jim.regg@alaska.gov> Cc: Winston, Hugh E (CED) <hugh.winston@alaska.gov>; Guhl, Meredith D (CED) <meredith.guhl@alaska.gov> Subject: RE: Yukon Basin Strat Test wells site clearances Jim, Do you have any plans to do site clearance on these Yukon Basin strat test wells? Bryan McLellan Senior Petroleum Engineer Alaska Oil & Gas Conservation Commission 333 W 7th Ave Anchorage, AK 99501 Bryan.mclellan@alaska.gov +1 (907) 250-9193 From: Guhl, Meredith D (CED) <meredith.guhl@alaska.gov> Sent: Thursday, October 14, 2021 10:27 AM To: McLellan, Bryan J (CED) <bryan.mclellan@alaska.gov> Cc: Winston, Hugh E (CED) <hugh.winston@alaska.gov> Subject: Yukon Basin Strat Test wells site clearances Hi Bryan, Will AOGCC be conducting site clearances for the Yukon Basin strat test wells? I saw a line in Cody’s email of “All 13 wells have been plugged back and each site has been reclaimed, local Birch Creek village representatives were onsite during reclamation to verify Hilcorp left sites up to their standards.” So that prompted the question. We do track this in RBDMS, so if there is no intention of site clearance from AOGCC, the Location Clearance will need to be updated. Thanks, Meredith Meredith Guhl (she/her) Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. 1 Guhl, Meredith D (CED) From:David Douglas <David.Douglas@hilcorp.com> Sent:Thursday, October 14, 2021 2:05 PM To:Guhl, Meredith D (CED) Subject:Yukon Basin Strat Test Wells Thank you for the guidance Meredith, I have Samples for another well (not Yukon Flats) to package up and submit. I’ll make sure all the criteria is met for that submission. No photos are available for these Yukon Flats wells. No conventional core analysis is planned. David Douglas Sr. Geotechnician | Hilcorp Alaska, LLC O: (907) 777-8337 | C: (907) 887-6339 3800 Centerpoint Drive, Suite 1400 | Anchorage, AK 99503 david.douglas@hilcorp.com From: Guhl, Meredith D (CED) <meredith.guhl@alaska.gov> Sent: Thursday, October 14, 2021 11:03 AM To: David Douglas <David.Douglas@hilcorp.com> Cc: Boyer, David L (CED) <david.boyer2@alaska.gov>; Davies, Stephen F (CED) <steve.davies@alaska.gov> Subject: [EXTERNAL] Yukon Basin Strat Test Wells David, Attached please find the transmittals for the Yukon Basin strat test wells. Please note, in the future, any box arriving not labeled with the well name, company, location, API, and sample interval will be rejected. Any samples submitted to the AOGCC should be labeled with that basic information, whether it be a development oil well or a stratigraphic test well. Were any photos taken of the core? If so, please submit them per 20 AAC 25.071(b)(3). Are any further analysis planned for the core from the strat test wells? Thank you, Meredith Meredith Guhl (she/her) Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhl@alaska.gov Direct: (907) 793‐1235 CONFIDENTIALITY NOTICE: This e‐mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e‐mail, 2 please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Meredith Guhl at 907‐793‐1235 or meredith.guhl@alaska.gov. The 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. David Douglas Hilcorp Alaska, LLC Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Please acknowledge receipt and return one copy of this transmittal. Received By: Date: Hilcorp North Slope, LLC Date: 10/12/2021 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL Yukon Flats Strat Test Wells *** Confidential *** Lithology Log Print & Data Folder Contents: Log Print Files: 5”/100’ (MD) PDF Format Digital Data: Data Files (LAS FORMAT) Well Name API Permit Log Date Log Type BIRCH CREEK 1 50091200020000 221027 7/01/2021 Lithology Log BIRCH CREEK 3 50091200040000 221029 6/28/2021 Lithology Log BIRCH CREEK 4 50091200050000 221030 6/23/2021 Lithology Log BIRCH CREEK 5 50091200060000 221031 7/21/2021 Lithology Log BIRCH CREEK 6 50091200070000 221032 7/16/2021 Lithology Log BIRCH CREEK SE 1 50091200030000 221028 7/19/2021 Lithology Log CANVASBACK 1 50091200080000 221033 7/11/2021 Lithology Log CANVASBACK 2 50091200090000 221034 7/08/2021 Lithology Log CANVASBACK 3 50091200100000 221035 7/05/2021 Lithology Log CANVASBACK 4 50091200110000 221036 7/12/2021 Lithology Log CANVASBACK 5 50091200120000 221037 7/14/2021 Lithology Log CANVASBACK 6 50091200130000 221038 7/03/2021 Lithology Log SALOON ISLAND 2 50091200150000 221040 7/23/2021 Lithology Log Please include current contact information if different from above. Received By: 10/12/2021 37' (6HW By Abby Bell at 5:57 pm, Oct 12, 2021 AOGCC a t - bzq, David Douglas Hilcorp Alaska, LLC Sr. GeoTechnician 3800 CenterPoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 HilmrpAli"",LK E-mail: david.douglas@hilcorp.com Date: 10/12/2021 RECH G® To: Alaska Oil & Gas Conservation Commission Petroleum Geology Assistant OCT 12 2021 333 W 7th Ave Ste 100 Anchorage, AK 99501 OGCC WELL SAMPLE TRANSFER TRANSMITTAL - Well: Birch Creek 3 *** CONFIDENTIAL *** - PTD: 221-029 - API: 50-091-20004-00-00 - Date: 04-Aug-2021 1 Ziplock Bag (80 Total Samples): BAG # SAWLE WEWAL (FEET / MD) FI�Q(lENCif 1 of 1 0'-30', 30'-60', 60'-90',90'-115' 30' Sample Bags 120',125%130',135',140',145',150',160% 1 of 1 165',168',171',174',177',180'-190', 1' Sample Bags 195'-200', 202'-220', 223'-248', 250' Please include current contact information if different from above. Please acknowledge receipt by signing and returning one copy of this transmittal. Received eye �� Date: O I 14 I David Douglas Hilcorp Alaska, LLC Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Please acknowledge receipt and return one copy of this transmittal or FAX to 907 564-4424 Received By: Date: Hilcorp North Slope, LLC Date: 09/22/2021 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL Yukon Flats Strat Test Wells *** Confidential *** −Open Hole Wireline Logs Folder Contents: −Log Print Files: 6”/100’ and 12”/100’ (MD) PDF Format −Digital Data: MS Excel Format Well Name API Permit Log Date Log Type BIRCH CREEK 1 50091200020000 221027 7/01/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 3 50091200040000 221029 6/28/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 4 50091200050000 221030 6/23/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 5 50091200060000 221031 7/21/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK 6 50091200070000 221032 7/16/2021 GR-SP-TEMP-RES-SONIC BIRCH CREEK SE 1 50091200030000 221028 7/19/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 1 50091200080000 221033 7/11/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 2 50091200090000 221034 7/08/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 3 50091200100000 221035 7/05/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 4 50091200110000 221036 7/12/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 5 50091200120000 221037 7/14/2021 GR-SP-TEMP-RES-SONIC CANVASBACK 6 50091200130000 221038 7/03/2021 GR-SP-TEMP-RES-SONIC SALOON ISLAND 2 50091200150000 221040 7/23/2021 GR-SP-TEMP-RES-SONIC 09/27/2021 PTD: 2210290 E-Set: 35687 1a. Well Status:Oil SPLUG Other Abandoned Suspended 1b. Well Class: 20AAC 25.105 20AAC 25.110 Development Exploratory GINJ WINJ WDSPL No. of Completions: _0 Service Stratigraphic Test 2. Operator Name: 6. Date Comp., Susp., or 14. Permit to Drill Number / Sundry: Aband.: 3. Address: 7. Date Spudded: 15. API Number: 4a. Location of Well (Governmental Section): 8. Date TD Reached: 16. Well Name and Number: Surface: Top of Productive Interval: 9. Ref Elevations: KB: 17. Field / Pool(s): GL: 409.6' BF:N/A Total Depth: 10. Plug Back Depth MD/TVD: 18. Property Designation: 4b. Location of Well (State Base Plane Coordinates, NAD 27): 11. Total Depth MD/TVD: 19. DNR Approval Number: Surface: x- y- Zone- 3 TPI: x- y- Zone- 12. SSSV Depth MD/TVD: 20. Thickness of Permafrost MD/TVD: Total Depth: x- y- Zone- 3 5. Directional or Inclination Survey: Yes (attached) No 13. Water Depth, if Offshore: 21. Re-drill/Lateral Top Window MD/TVD: Submit electronic information per 20 AAC 25.050 (ft MSL) 22. Logs Obtained: 23. BOTTOM 4-1/2" PHD Pulled 24. Open to production or injection? Yes No 25. 26. Was hydraulic fracturing used during completion? Yes No DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED 27. Date First Production: Method of Operation (Flowing, gas lift, etc.): Hours Tested: Production for Gas-MCF: Test Period Casing Press: Calculated Gas-MCF: Oil Gravity - API (corr): Press. 24-Hour Rate 15 sx bentonite / 2 sx cmt to P&A ACID, FRACTURE, CEMENT SQUEEZE, ETC. CASING, LINER AND CEMENTING RECORD List all logs run and, pursuant to AS 31.05.030 and 20 AAC 25.071, submit all electronic data within 90 days of completion, TUBING RECORD N/A SIZEIf Yes, list each interval open (MD/TVD of Top and Bottom; Perforation Size and Number; Date Perfd): STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG Hilcorp Alaska, LLC WAG Gas 3800 Centerpoint Drive, Suite 1400, Anchorage, AK 99503 6/28/2021 1841' FNL, 715' FWL, Sec 28, T17N, R7E, FM, AK 1841' FNL, 715' FWL, Sec 28, T17N, R7E, FM, AK 221-029 N/A 413.6' Surface June 28, 2021 June 26, 2021 HOLE SIZE AMOUNT PULLED 50-091-20004-00-00 Birch Creek 3 459377 4485939 N/A CEMENTING RECORD N/A SETTING DEPTH TVD 4485939 BOTTOM TOP Pulled CASING WT. PER FT.GRADE N/A 459377 TOP SETTING DEPTH MD Pulled8.21# DEPTH SET (MD) PACKER SET (MD/TVD) Gas-Oil Ratio:Choke Size:Water-Bbl:Oil-Bbl: Pulled Per 20 AAC 25.283 (i)(2) attach electronic information 3.83" N/A Date of Test: Flow Tubing suspension, or abandonment, whichever occurs first. Types of logs to be listed include, but are not limited to: mud log, spontaneous potential, gamma ray, caliper, resistivity, porosity, magnetic resonance, dipmeter, formation tester, temperature, cement evaluation, casing collar locator, jewelry, and perforation record. Acronyms may be used. Attach a separate page if necessary N/A GR, Res, Temp, SP, Sonic, Lithology Log PRODUCTION TEST Sr Res EngSr Pet GeoSr Pet Eng Oil-Bbl: Water-Bbl: Private Fee N/A N/A N/AN/A N/A 250' / 250' WINJ SPLUGOther Abandoned Suspended Stratigraphic Test No No (attached) No Form 10-407 Revised 3/2020 Submit within 30 days of Completion, Suspension, or Abandonment By Samantha Carlisle at 11:20 am, Aug 30, 2021 RBDMS HEW 8/31/2021 Abandonment Date 6/28/2021 HEW GDSR-8/31/21BJM 10/7/21 DLB 08/31/2021 Conventional Core(s): Yes No Sidewall Cores: 30. MD TVD Top of Productive Interval N/A Siltstone 31. List of Attachments: 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Cody Dinger Contact Email:cdinger@hilcorp.com Authorized Contact Phone: 777-8389 General: Item 1a: Item 1b: Item 4b: Item 9: Item 15: Item 19: Item 20: Item 22: Item 23: Item 24: Item 27: Item 28: Item 30: Item 31: FORMATION TESTS Permafrost - Top Core chips and analysis is ongoing and will be sent separately. Rig Tricone drilled and logged samples every 10' (bagged every 30') to 120'. Continuously core from 120'-250' encountering mostly sand&siltstone. **Sample manifest and details attached**. Lithology log to follow. Core recovery imperfect; unrecovered depths on sample manifest. This form and the required attachments provide a complete and concise record for each well drilled in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC, no matter when the analyses are conducted. Information to be attached includes, but is not limited to: summary of daily operations, wellbore schematic, directional or inclination survey, core analysis, paleontological report, production or well test results, per 20 AAC 25.070. Wellbore Schematic, Daily Drilling Reports, As Built Plat, P&A Photos, Sample Manifest, Cuttings and Core Description Signature w/Date: If Yes, list formations and intervals cored (MD/TVD, From/To), and summarize lithology and presence of oil, gas or water (submit separate pages with this form, if needed). Submit detailed descriptions, core chips, photographs, and all subsequent laboratory analytical results per 20 AAC 25.071. Authorized Name: Monty Myers Authorized Title: Drilling Manager Permafrost - Base 29. GEOLOGIC MARKERS (List all formations and markers encountered): Formation at total depth: Yes No Well tested? Yes No 28. CORE DATA If yes, list intervals and formations tested, briefly summarizing test results. Attach separate pages to this form, if needed, and submit detailed test information, including reports, per 20 AAC 25.071. NAME The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Report the Division of Oil & Gas / Division of Mining Land and Water: Plan of Operations (LO/Region YY-123), Land Use Permit (LAS 12345), and/or Easement (ADL 123456) number. INSTRUCTIONS Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. TPI (Top of Producing Interval). Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other (explain). Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Review the reporting requirements of 20 AAC 25.071 and, pursuant to AS 31.05.030, submit all electronic data within 90 days of completion, suspension, or abandonment, whichever occurs first. Well Class - Service wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Pursuant to 20 AAC 25.070, attach to this form: well schematic diagram, summary of daily well operations, directional or inclination survey, and other tests as required including, but not limited to: core analysis, paleontological report, production or well test results. Report measured depth and true vertical thickness of permafrost. Provide MD and TVD for the top and base of permafrost in Box 29. Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Pursuant to 20 AAC 25.071, submit detailed descriptions, core chips, photographs, and all subsequent laboratory analytical results, including, but not limited to: porosity, permeability, fluid saturation, fluid composition, fluid fluorescence, vitrinite reflectance, geochemical, or paleontology. The Kelly Bushing, Ground Level, and Base Flange elevations in feet above Mean Sea Level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. No NoSidewall Cores: Yes No Form 10-407 Revised 3/2020 Submit within 30 days of Completion, Suspension, or Abandonment 8.30.2021Digitally signed by Monty M Myers DN: cn=Monty M Myers, c=US, o=Hilcorp Alaska, LLC, ou=Technical Services - AK Drilling, email=mmyers@hilcorp.com Reason: I am approving this document Date: 2021.08.30 10:55:19 -08'00' Monty M Myers Updated by CJD 8/25/2021 P&A Schematic Location: Yukon Basin Well: Birch Creek 3 PTD: 221-029 API: 50-091-20004-00-00 TD = 252’ / TVD = 252’ Drilling Info Hole Section Casing Surface Pulled & recovered 3.83” Hole Bentonite grout pumped from TD to ~20’. Cement pumped from ~20’ to surface. Well Name Rig API Number Well Permit Number Start Date End Date Birch Creek 3 AK Drilling 50-091-20004-00-00 221-029 6/24/2021 Future Break down and move rig with helicopter from Birch Creek 3 to Birch Creek 1. Continue chipping ice and digging out sump at Birch Creek 3.Spud Birch Creek 3. Drill with tri-cone bit down to 70'. POOH and advance casing to 50'. Unconsolidated sand and pea gravel. Collect samples every ~10'.Continue drilling with tri-cone bit from 70' to 100' through unconsolidated sand and pea gravel. POOH and advance casing to 70'. Collect samples every ~10'. 6/26/2021 - Saturday Core drill from 180' to 250' TD, with HQ coring tool; ~100% recovery. POOH and lay down drill pipe.R/U and RIH with Temp/Gamma/Resistivity on wireline, logging down for Temp, POOH logging up for Gamma/Res. M/U and RIH with Sonic tool to 250', POOH logging up with Sonic tool. R/D.RIH with DP to 250' and begin to pump grout. Pump grout and POOH - observed grout returns to surface. L/D drill pipe. R U and pull casing from 120' MD. All casing recovered. Mix and pump 2 sx of cement and install surface cap/monument. Break down rig and prep for daytime rig move. 6/29/2021 - Tuesday 6/27/2021 - Sunday Continue to drill from 100' to 120' with tri-cone bit, while advancing casing to 120'. Collecting cuttings samples every ~10'.Core drill with HQ core tool from 120' to 180'. 6/28/2021 - Monday 6/25/2021 - Friday Both crews mobe out to prep sites. Prep Birch Creek 1 and Canvasback 6. Dig sumps for both sites with no issues with ice. Finish clearing Birch Creek 4, mob timbers and drill deck to Birch Creek 1. Prep water source at Birch Creek 1. Send jack hammers once on location to Birch Creek 3 and continue working on digging out sumps. 6/23/2021 - Wednesday Hilcorp Alaska, LLC Weekly Operations Summary No activity to report. 6/24/21- Thursday Rig down Birch Creek 4 site, sling load rig and auxillary equipment to Birch Creek 3. Rig up water pump. Attempt to dig sump, unable to dig sump deep enough due to frozen ground. Begin to mobilize jack hammers to assist.Night crew standby and will assist in the morning to continue prepping future sites and finish rigging up Birch Creek 3. .RIH with DP to 250' and begin to pump grout. See attached email for further P&A description. bjm Pump grout an d POOH - observed grout returns to surface. L/D drill pipe. R U and pull casing from 120' MD. All casing recovered. Mix and pump 2 sx of cement and install surface cap/monument. MICHAEL R. EWING LS -11794 MICHAEL R. EWINGGGGGNGGGGGGGGGGGGGGGGGGGGGGGGGGGGGNGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGNGNG LS -11797979797979797777979777777797797779797979777779777777977977779777797977979799779797997979997999999999999999999999999999999999999999999999999999944444444444444444444444444444444444444444444444444444444444444444444444444 SAMPLE MANIFEST Operator:Hilcorp Alaska LLC Date:August 4, 2021 Well Name:Birch Creek 3 Prepared By:Kyle Wiseman Location: Yukon-Koyukuk Area, Alaska Yukon Basin Shipping: Dave Buthman 3800 Centerpoint Drive Suite 1400, Anchorage, Alaska, 99503 Well:Birch Creek 3 Bag Type Frequency Interval (Feet / MD) Ziploc 1 of 1 Bags 30’0-30, 30-60, 60-90,90-115 Bags 1’ 120,125,130,135,140,145,150,160, 165,168,171,174,177,180-190, 195-200, 202-220, 223-248, 250 Number of Bags per Box: 80 Total Sample Count for Final Well: 80 Birch Creek 3 10 – Sandstone: Red Brown, Transparent To Opaque, Predominantly Translucent, Upper Very Fine, Sub Rounded, Well Sorted, Loose, Abundant Silt, Very Argillaceous. 20 – Sandstone: Brown Grey, Transparent To Opaque, Predominantly Translucent, Various Other Colors, Lower Medium, Abundant Very Coarse, Sub Rounded To Sub Angular, Poorly Sorted, Loose,Silty, Calcareous Argillaceous Content, Wood Debris. 30 – Sandstone: Brown Grey, Transparent To Opaque, Predominantly Translucent, Various Other Colors, Lower Medium, Abundant Very Coarse, Sub Rounded To Sub Angular, Poorly Sorted, Loose, Silty. 40 – Gravel: Grey Brown, Black To White, Predominantly 5 mm, Up To 1 cm, Well Rounded, Abundant Medium Sand, Silty, Wood Debris. 50 – Sandstone: Dark Grey, Transparent To Opaque, Predominantly Transparent, Various Other Colors, Red Grains, Upper Fine, Rounded To Sub Angular, Moderately Sorted, Loose,Silty, Trace Wood Debris. 60 – Sandstone: Dark Grey, Transparent To Opaque, Predominantly Translucent, Various Other Colors, Red Grains, Lower Medium, Rounded To Sub Angular, Poorly Sorted, Loose, Silty, Common Gravel. 70 – Sandstone: Dark Grey, Translucent To Opaque, Predominantly Opaque, Various Other Colors, Red Grains And Rare Microspherule, Upper Very Coarse, Well Rounded To Angular, Poorly Sorted, Loose, Trace Gravel, Wood Debris. 80 – Gravel: Grey Brown, Black To White, Predominantly 5 mm, Up To 1 cm, Well Rounded, Predominantly SiO2 Igneous Clast, Common Lower Fine Sand. 90 – Sandstone: Dark Grey, Transparent To Opaque, Predominantly Translucent, Various Other Colors, Red Grains, Upper Fine, Rounded To Sub Angular, Poorly Sorted, Loose,Silt, Common Gravel. 100 – Sandstone: Light Brown, Transparent To Opaque, Predominantly Translucent, Various Other Colors, Red Grains, Upper Fine, Rounded To Sub Angular, Poorly Sorted, Loose, Very Silty, Argillaceous, Trace Gravel. 110 – Gravel: Grey Brown, Black To White, Predominantly 5 mm, Up To 2.5 cm, Well Rounded To Angular, Trace Sand. 115 – Claystone: Medium Grey, Soft To Firm, Amorphous To Plastic, Smooth And Waxy, Trace Mica, Trace Silt. -Driller Note: Interval 115'-165' was dropped and is mixed up throughout (Core Lost) Driller retained ~3" (shoe) from each 5' interval to be logged and sampled. 120 – Siltstone: Medium Grey, Firm To Hard, Sub-Blocky Irregular To Slightly Plastic, Sucrosic To Smooth And Waxy, Very Argillaceous, Common Mica, Trace Soft White Grains. 125 – Siltstone: Medium Grey And Brown, Soft To Firm, Sub-Blocky Fissile To Slightly Plastic, Sucrosic To Micaceous To Smooth And Waxy, Very Argillaceous, Abundant Mica, Micro Bedded, Micro Laminae, Trace Soft Black Grains. 130 – Siltstone: Medium Grey, Soft To Firm, Sub-Blocky Fissile To Slightly Plastic, Slightly Sucrosic To Micaceous Smooth And Waxy, Very Argillaceous, Abundant Mica, Micro Laminae. 135 – Siltstone: Medium Grey Trace Brown, Soft To Firm, Sub-Blocky Fissile To Slightly Plastic, Slightly Sucrosic To Micaceous Smooth And Waxy, Very Argillaceous, Abundant Mica, Micro Laminae, Micro Bedded. 140 – Siltstone: Medium Grey And Brown, Soft To Firm, Sub-Blocky Fissile And Irregular To Plastic, Slightly Sucrosic To Micaceous Smooth And Waxy, Very Argillaceous, Abundant Mica, Micro Laminae, Micro Bedded. 145 – Siltstone: Medium Grey And Brown, Soft To Firm, Sub-Blocky Fissile And Irregular To Crumbly, Slightly Sucrosic To Micaceous And Waxy, Argillaceous, Abundant Mica, Micro Laminae, Rare Soft Black And Soft Azure Blue Grains. 150 – Siltstone: Medium Grey And Brown, Soft To Firm, Sub-Blocky Fissile And Irregular To Crumbly, Slightly Sucrosic To Micaceous Smooth And Waxy, Argillaceous, Abundant Mica, Micro Laminae, Micro Bedded, Trace Soft Black And Azure Blue Grains. 160 – Siltstone: Medium Grey And Brown, Soft, Trace Firm, Sub-Blocky Fissile And Irregular To Plastic, Slightly Sucrosic To Micaceous Smooth And Waxy, Very Argillaceous, Abundant Mica, Micro Laminae. 165 – Siltstone: Medium Grey And Brown, Soft To Firm, Sub-Blocky Fissile And Irregular To Crumbly, Sucrosic To Micaceous And Waxy, Argillaceous, Abundant Mica, Micro Laminae. Begin core samples more dried out than previously 168 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Fissile And Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Azure Blue Grains. 171 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Micro Bedded, Trace Azure Blue Grains. 174 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Micro Bedded, Trace Azure Blue Grains. 177 – Siltstone: Light to Medium Grey, Brown Hue Trace Dark Grey, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Micro Bedded, Trace Azure Blue Grains. 180 – Siltstone: Light To Dark Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Rare Azure Blue Grains. 182 – Siltstone: Light to Medium Grey, Brown Hue, Very Hard, Indurated, Copper Sulfide Cement, Sub- Blocky Irregular To Crumbly, Sucrosic, Argillaceous, Abundant Mica, Rare Soft Azure Blue Grains. 184 – Siltstone: Light to Medium Grey, Brown Hue, Firm To Hard, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Micro Laminae, Rare Azure Blue Grains. 186 – Siltstone: Light to Medium Grey, Brown Hue, Dark Grey, Firm To Hard, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Azure Blue Grains, Trace Lower Medium Sand. 188 – Siltstone: Light to Medium Grey, Brown Hue, Firm To Hard, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Azure Blue Grains. 190 – Siltstone: Light to Medium Grey, Brown Hue, Firm To Hard, Sub-Blocky Irregular To Crumbly, Cryptofissile, Hygrofissile, Sucrosic To Slightly Smooth, Very Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Azure Blue Grains. 195 – Siltstone: Light to Medium Grey, Brown Hue, Dark Grey, Firm To Hard, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Azure Blue Grains. 197 – Siltstone: Light to Medium Grey, Brown Hue, Dark Grey, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Soft Azure Blue And White Grains. 199 – Siltstone: Light to Medium Grey, Brown Hue, Dark Grey, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Soft Azure Blue, Dark Red, Black Grains. 202 – Siltstone: Light to Medium Grey, Brown Hue, Dark Grey, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 204 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Argillaceous, Common Mica, Dark Grey Argillaceous, Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 206 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Common Mica, Trace Soft Azure Blue Grains, Trace Upper Very Fine Sand. 208 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Slightly Argillaceous, Abundant Mica, Micro Laminae, Micro Bedded, Trace Soft White Grains, Trace Upper Very Fine Sand. 210 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Cryptofissile, Hygrofissile, Sucrosic To Slightly Smooth, Slightly Argillaceous, Abundant Mica, Micro Bedded, Rare Soft Azure Blue Grains. 212 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular And Fissile To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Micro Bedded, Trace Soft Azure Blue Grains. 214 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Trace Soft Azure Blue And White Grains. 216 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Hygrofissile, Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Micro Bedded. 218 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Hygrofissile, Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Micro Laminae, Micro Bedded, Trace Soft Copper Sulfide And Black Grains. 219 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic, Trace Lower Very Fine Sand. 223 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Hygrofissile, Slightly Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 225 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Trace Soft Azure Blue And Black Grains. 227 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 229 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Slightly Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Dark Grey Argillaceous Micro Laminae, Trace Soft Azure Blue Grains. 231 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Slightly Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Micro Bedded, Trace Soft Azure Blue Grains. 233 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded. 235 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 237 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Micro Bedded, Trace Soft Azure Blue Grains. 239 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 241 – Siltstone: Light to Medium Grey, Brown Hue, Firm To Hard, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. 243 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Micro Bedded, Trace Soft Azure Blue Grains. 245 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular Fissile To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, Abundant Mica, Micro Bedded, Trace SoftAzure Blue Grains. 247 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular Fissile To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded, Common Soft Azure Blue Grains, Trace Fe Stain. 250 – Siltstone: Light to Medium Grey, Brown Hue, Soft To Firm, Sub-Blocky Irregular Fissile To Crumbly, Sucrosic To Slightly Smooth, Very Argillaceous, AbundantMica, Dark Grey Argillaceous Micro Laminae, Micro Bedded, Trace Soft Azure Blue Grains. From:Cody Dinger To:McLellan, Bryan J (CED); Boyer, David L (CED); Davies, Stephen F (CED) Cc:Monty Myers Subject:Yukon Basin Strat Test Program / South Kenai Strat Test Program Date:Monday, July 26, 2021 8:20:49 AM Good Morning Bryan/Dave/Steve, Wanted to reach out with an update on the Yukon Basin strat test program. We completed drilling 13/15 wells, both Saloon Island 1 & 3 were cancelled. All 13 wells have been plugged back and each site has been reclaimed, local Birch Creek village representatives were onsite during reclamation to verify Hilcorp left sites up to their standards. I’m headed up to Birch Creek tomorrow morning to get final site/P&A/monument photos. Surveyors will be mobilizing to each site to collect an as built survey August 3-5th and we will be deconstructing our camp that same week as well. Once I have the As Built surveys in hand I will turn in a 10-407 for each well. Core/cuttings evaluation is still on going, we collected a pretty significant amount, I expect that process to be completed ~mid-August. Upon my return next week, I expect to submit permits to drill for our South Kenai strat test program which looks like it will be a 10-12 well effort, hopefully beginning the first week of September. Let me know if you have any questions or want to chat. Thank you! Cody Dinger Hilcorp Alaska, LLC Drilling Tech 907-777-8389 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of theindividual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. From:McLellan, Bryan J (CED) To:Cody Dinger Subject:Re: [EXTERNAL] Yukon Flats Strat well program Date:Wednesday, October 6, 2021 2:23:22 PM Cody. Thanks for the clarification. I can attach this email to the 10-407s, so no need to resubmit anything. Bryan Sent from my iPhone On Oct 6, 2021, at 1:33 PM, Cody Dinger <cdinger@hilcorp.com> wrote: Bryan, I can probably cover each of these in one statement – we had some new guys (and multiple) who aren’t used to specific reporting and its really my bad for not cleaning these up prior to submittal. But after checking field notes and confirming with both drillers and foreman I can say with confidence that the following procedure was used: After wells were TD and logged: Grout was circulated thru drill pipe from TD to surface (pump and pull) Drill pipe was laid down Casing was pulled and recovered (in every instance we recovered all casing) 2 sx of cement were mixed and pumped thru 2 joints (~20’) of drill pipe to surface. Visual cement returns to surface and monument cap placed I would be happy to correct the reports to reflect this, again my apologies for the inconsistencies. Cody Dinger Hilcorp Alaska, LLC Drilling Tech 907-777-8389 From: McLellan, Bryan J (CED) <bryan.mclellan@alaska.gov> Sent: Wednesday, October 6, 2021 11:28 AM To: Cody Dinger <cdinger@hilcorp.com> Subject: RE: [EXTERNAL] Yukon Flats Strat well program Thanks Cody I’ve noticed a few issues with incomplete info on the daily reports for the 10-407’s. Could you comment on each of these: 1. Birch Creek 03. Grout was circulated from the bottom, but cement appears to have been dumped in from surface after pulling casing. Doesn’t match up with the statement on the Well Bore Schematic, WBS or the conditions on the PTD. 2. Birch Creek 04. No mention of grouting or cementing from bottom with drill pipe. After rigging down logging tools, the report says the well was grouted and cemented, but never ran in with DP to place it from bottom. Again, doesn’t agree with the WBS or the PTD conditions. 3. Brirch Creek 05. No mention of pulling the casing in the daily report, but WBS indicates it was pulled. 4. Saloon Island 2. Topped off with cement after pulling casing. Not clear if it was circulated in place or dumped from surface. 5. Canvasback 3. Topped off with cement after pulling casing. Not clear if it was circulated in place or dumped from surface. 6. Canvasback 1. Not clear from what depth grout and cement was circulated. 7. Canvasback 4. Not clear if cement was circulated in place. It was pumped after pulling casing. 8. Canvasback 2. Not clear how deep grout was pumped from. Not clear if cement was circulated in place. It was pumped after pulling casing. 9. Birch Creek 6. Not clear if casing was recovered. Bryan McLellan Senior Petroleum Engineer Alaska Oil & Gas Conservation Commission 333 W 7th Ave Anchorage, AK 99501 Bryan.mclellan@alaska.gov +1 (907) 250-9193 From: Cody Dinger <cdinger@hilcorp.com> Sent: Wednesday, October 6, 2021 9:57 AM To: McLellan, Bryan J (CED) <bryan.mclellan@alaska.gov> Subject: RE: [EXTERNAL] Yukon Flats Strat well program Hi Bryan, None whatsoever, we had a gas detectors at the driller console and set up on a stake along the trench to our sump. Never had a peep out of either in any of the 13 wells. Cody Dinger Hilcorp Alaska, LLC Drilling Tech 907-777-8389 From: McLellan, Bryan J (CED) <bryan.mclellan@alaska.gov> Sent: Wednesday, October 6, 2021 9:38 AM To: Cody Dinger <cdinger@hilcorp.com> Subject: [EXTERNAL] Yukon Flats Strat well program Cody, I’m going through the 10-407s for the Yukon Flats strat wells today. Wondering if there was any sign of shallow gas in any of the wells. Thanks Bryan McLellan Senior Petroleum Engineer Alaska Oil & Gas Conservation Commission 333 W 7th Ave Anchorage, AK 99501 Bryan.mclellan@alaska.gov +1 (907) 250-9193 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 thismessage 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. 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 itssystems 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.gov Monty M. Myers Drilling Manager Hilcorp Alaska, Inc. 3800 Centerpoint Drive, Suite 400 Anchorage, AK 99503 Re: Exploratory Field, Exploratory Pool, Birch Creek 3 Hilcorp Alaska, LLC Permit to Drill Number: 221-029 Surface Location: 1837' FNL, 710' FWL, Sec 28, T17N, R7E, FM, AK Bottomhole Location: 1837' FNL, 710' FWL, Sec 28, T17N, R7E, FM, AK Dear Mr. Myers: Enclosed is the approved application for the permit to drill the above referenced well. Conditions of variance approvals: 1. Variance from 20 AAC 25.035(c) is approved to drill these wells without diverter due to the very low risk of shallow gas presence the area, as described in the attached shallow hazards study, as allowed in 20 AAC 25.035(h)(2). 2. The wellbore surveying requirements in Section 20 AAC 25.050 are waived by the commission, as the shallow (~250’ TD) vertical wells meet the conditions outlined in 20 AAC 25.050(h). 3. Variance from 20 AAC 25.015 is approved to move the Surface Hole Location (SHL) 50 feet or less due to local variability of the terrain. AOGCC must be contacted if SHL is moved more than 50 feet from the approved SHL. 4. Variance from 20 AAC 25.120(1), (2) & (3) is approved on the condition that a 2-foot rebar stake with a 3” brass cap on top is set into the surface plug cement, with the brass cap containing all the information required in 20 AAC 25.120(4) stamped or engraved into it. 5. Variance from 20 AAC 25.112 for the wellbore plugging requirements is approved on the conditions: a. bentonite is placed by the circulation method from TD of the wellbore to ~20’ below surface, with the top 20’ of the wellbore capped with cement placed by the circulation method. b. Photo-document the P&A and site clearance activity. Include the labeled photos with the 10-407 and send them to the AOGCC after completing the P&A and site clearance of each well. Additional conditions not included with the above variance approvals: 1. In addition to the well logging program proposed by Hilcorp Alaska, LLC in the attached application, the following well logs are also required for this well under Regulation 20 AAC 25.071(a): Lithology log is required in lieu of mud log. Permit to Drill: 221-029 Page 2 of 2 2. Core chips are required every 1 foot, in lieu of cuttings samples. All other requirements of 20 AAC 25.071 apply. Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for well logs run must be submitted to the AOGCC within 90 days after completion, suspension or abandonment of this well. 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, Jeremy M. Price Chair DATED this ___ day of June, 2021. Jeremy Price Digitally signed by Jeremy Price Date: 2021.06.14 11:24:24 -08'00' 1a. Type of Work: 1b. Proposed Well Class: Exploratory - Gas Service - WAG Service - Disp 1c. Specify if well is proposed for: Drill Lateral Stratigraphic Test Development - Oil Service - Winj Single Zone Coalbed Gas Gas Hydrates Redrill Reentry Exploratory - Oil Development - Gas Service - Supply Multiple Zone Geothermal Shale Gas 2. Operator Name: 5. Bond: Blanket Single Well 11.Well Name and Number: Bond No. 3. Address: 6.Proposed Depth: 12. Field/Pool(s): MD: 250' TVD: 250' 4a. Location of Well (Governmental Section): 7.Property Designation: Surface: Top of Productive Horizon: 8.DNR Approval Number: 13.Approximate Spud Date: Total Depth:9. Acres in Property:14. Distance to Nearest Property: 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL (ft): 413.67' 15. Distance to Nearest Well Open Surface: x-459372 y- 4485943 Zone-3 410.67' to Same Pool: N/A 16. Deviated wells: Kickoff depth: N/A feet 17. Maximum Potential Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: N/A degrees Downhole: Surface: Hole Casing Weight Grade Coupling Length MD TVD MD TVD 3.830" 4-1/2" 8.21# PHD V Wall PHD ±100 Surface Surface ±100' ±100 19.PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re-Entry Operations) Junk (measured): TVD Hydraulic Fracture planned? Yes No 20.Attachments: Property Plat BOP Sketch Drilling Program Time v. Depth Plot Shallow Hazard Analysis Diverter Sketch Seabed Report Drilling Fluid Program 20 AAC 25.050 requirements Contact Name: Contact Email: Contact Phone: Date: Permit to Drill API Number: Permit Approval Number:Date: Conditions of approval : If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales: Samples req'd: Yes No Mud log req'd: Yes No H2S measures: Yes No Directional svy req'd: Yes No Spacing exception req'd: Yes No Inclination-only svy req'd: Yes No Post initial injection MIT req'd: Yes No APPROVED BY Approved by: COMMISSIONER THE COMMISSION Date: Comm. Comm. Sr Pet Eng Sr Pet Geo Sr Res Eng Birch Creek 3 N/A Cement Quantity, c.f. or sacks Commission Use Only See cover letter for other requirements. Total Depth MD (ft): Total Depth TVD (ft): 022224484 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL CONFIDENTIAL 20 AAC 25.005 0 N/A 1837' FNL, 710' FWL, Sec 28, T17N, R7E, FM, AK N/A 3800 Centerpoint Drive, Suite 1400, Anchorage, AK 99503 Hilcorp Alaska, LLC 1837' FNL, 710' FWL, Sec 28, T17N, R7E, FM, AK Private Fee 18960 18. Casing Program: Top - Setting Depth - BottomSpecifications 0 Cement Volume MDSize Plugs (measured): (including stage data) N/A Driven LengthCasing Conductor/Structural Effect. Depth MD (ft): Effect. Depth TVD (ft): Authorized Title: Authorized Signature: Production Liner Intermediate Authorized Name: 6/23/2021 14,397' to nearest native allotment Monty Myers Drilling Manager Cody Dinger cdinger@hilcorp.com 777-8389 21. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval. Surface Perforation Depth TVD (ft): GL / BF Elevation above MSL (ft): Perforation Depth MD (ft): Stratigraphic Test No Mud log req'd: Yes No No Directional svy req'd: Yes No Seabed ReportDrilling Fluid Program 20 AAC 25.050 requirements BOP SketchDrilling Program Time v. Depth Plot Shallow Hazard Analysis Single Well Gas Hydrates No Inclination-only svy req'd: Yes No Exploratory - Oil Development - Gas Service - Supply Multiple Zone Geothermal No No Form 10-401 Revised 3/2021 This permit is valid for 24 months from the date of approval per 20 AAC 25.005(g) 5.16.2021 By Meredith Guhl at 9:10 am, May 17, 2021 Digitally signed by Monty M Myers DN: cn=Monty M Myers, c=US, o=Hilcorp Alaska, LLC, ou=Technical Services - AK Drilling, email=mmyers@hilcorp.com Reason: I am approving this document Date: 2021.05.16 21:02:21 -08'00' Monty M Myers XX X BJM 06/11/21 X 221-029 See conditions of approval in cover letter. X DLB 06/11/2021 DSR-5/17/21 50-091-20004-00-00 X X dts 6/14/2021 JLC 6/14/2021 6/14/21 6/14/21Jeremy Price Digitally signed by Jeremy Price Date: 2021.06.14 11:24:40 -08'00' Hilcorp Alaska, LLC Page 1 of 1 Cody Dinger Drilling Tech Hilcorp Alaska, LLC P.O. Box 244027 Anchorage, AK 99524-4027 Tel 907 777 8389 Email cdinger@hilcorp.com 5/15/2021 Commissioner Alaska Oil & Gas Conservation Commission 333 W. 7th Avenue Anchorage, Alaska 99501 Re: Yukon Basin Stratigraphic Test Well Program Dear Commissioner, Enclosed in this letter for review and approval are variance requests and Permit to Drill Birch Creek 3 shallow stratigraphic test well located near Birch Creek in the Yukon Basin. Birch Creek 3 is one of 15 shallow vertical stratigraphic test wells to be drilled and evaluated in the Yukon Basin area. The plan is to begin drilling operations during the week of June 14, 2021. Hilcorp Alaska, LLC requests a variance from 20 AAC 25.035 (c) for utilizing diverter while drilling the shallow wells required for the stratigraphic test well program. The basis for this variance is due to the shallow nature of the wellbores and we do not expect to encounter any over pressured shallow gas zones. Refraction analysis attached. Hilcorp Alaska, LLC requests a variance from 20 AAC 25.050 for obtaining wellbore surveys due to the very shallow wells being drilled for the stratigraphic test program. Wells will be drilled vertically to 250’ MD TD. Hilcorp Alaska, LLC requests a variance from 20 AAC 25.015 for changes to an approved program due to surface hole location adjustments. Due to the variable terrain and to be built drill decks, perfecting SHL may prove difficult. Hilcorp requests a 50’ buffer from the proposed SHL(As Staked) in the permit to drill. As built plats will be provided with the 10- 407 submittal. All locations will be on Doyon Corporation land. Hilcorp Alaska, LLC requests a variance from 20 AAC 25.120 for placing a marker plate since no casing will remain after the abandonment is complete. In lieu of a marker plate, Hilcorp proposes a 2’ rebar stake with 1-1/2” brass cap with the well name stamped on top. Hilcorp Alaska, LLC requests a variance from 20 AAC 25.112 for plugging the well. In lieu of a full cement column, Hilcorp proposes using a bentonite mixture to P&A the borehole from 250’ to 20’ and a final cement plug from 20’ to surface. Bentonite is a commonly used and recommended practice for plugging water wells. Hilcorp has successfully used bentonite mixtures to P&A 25 stratigraphic tests in the South Kenai Peninsula without issue. The shallow stratigraphic test wells will be drilled with water and fully cored. Excess drill water/cuttings will be captured in a sump. Once drilled and evaluated the wells will be plugged utilizing grout and a 10’-20’ cement cap to complete the P&A. Attempts will be made to fully recover casing for reuse. Sumps will be reclaimed after settling occurs and reburied. Best managed practices have been developed, communicated and agreed upon with DEC/USACE for discharge. Best managed practices have been attached for reference. Approvals from surface landowners (Doyon) have been obtained prior to surveying, staking and preparation of the site for each stratigraphic test well. These approvals are included as an attachment in the form of a signed agreement with the Doyon attached to this letter. Care has been taken to place drilling locations away from culturally sensitive and wetland areas and to minimize location site preparation. If you have any questions, please don’t hesitate to contact me at 777-8389 (office) or 509-768-8196 (mobile). Sincerely, Cody Dinger Drilling Tech Variance granted from 20 ACC 25.015 to move SHL 50' or .less due to local variability of the terrain. AOGCC needs to be contacted if SHL is moved more than 50' from the As Staked marker. DLB Well Program Yukon Basin – Birch Creek 3 Date: 5/15/21 Well Name: Birch Creek 3 API Number: TBD Estimated Start Date: June 23rd, 2021 Rig: AK Drilling LF 70 Reg. Approval Req’d? Yes 10-401 Date Reg. Approval Rec’vd: TBD Regulatory/Operations Contact: Cody Dinger 777-8389 (M) (509) 768-8196 Permit to Drill Number: TBD First Call Engineer: Monty Myers (907) 777-8431 (O) (907) 538-1168 (M) AFE Number: Work to be performed: 1. Prep and survey-in wellsite (survey trip to be done in May for permitting efforts) pad clearing and helicopter LZ to be cleared ~ 20’ x 30’. – (Work has been completed) 2. Mobilize pad crew via helicopter to site 1-2 days before spud and build 16’x16’ drill deck, dig sump, run water line and pump to permitted water sites. 3. MIRU AK Drilling to drill site: fly in rig base, drill rods, tanks, fuel, pumps, spill kit, survival kit and personnel. 4. RU and install gas detection monitors at drillers console. 5. Drill 3.830” hole and drive 4.5” casing (10’ joints) to ~100’depending on hole conditions. Look for a consolidated formation to set casing and drill ahead in. 6. Drill ahead while coring and attempt to recover 2.750” core throughout wellbore. a. Analysis of recovered core will be performed in Anchorage. b. A lithology log will be generated in Anchorage. 7. R/U mobile logging unit and attempt to run SP/Resistivity/Poly Gamma/Temp Probe and POOH. R/U sonic probe and run log to TD. POOH and R/D logging unit. 8. RIH w/ 1” tubing to 250’ and pump bentonite plug from TD to ~20’. Mix and pump cement slurry from 20’ to surface. Attempt to use any usable fluid in the sump for mix fluid. 9. Reclaim 4-1/2” casing and top off well with cement slurry. 10. RDMO LF70 coring rig and mobilize all equipment to next location. 11. Reclamation crew will follow rig and deconstruct the drill deck for reuse, clear the area, recover the sump and return to previous form. 12. Ensure area is clear and site is returned to previous conditions. Obtain site photos to provide to the AOGCC for 10-407 P&A package. Attachments 1. Schematic 2. As Staked Plat 3. Location Diagram 4. Best managed practices 5. Refraction Analysis 6. Land Use Agreement to the AOGCC for 10-407 P&A package. 9.a Install location marker, with rebar stake set into the cement. bjm 50-091-20004-00-00 DLB DLB DLB Obtain site photos to provide 221-029 Well Program Yukon Basin – Birch Creek 3 Date: 5/15/21 Casing Specs: Updated by CJD 5/16/2021 PROPOSED WELLBORE Location: Yukon Basin Well: Birch Creek 3 PTD: TBD API: TBD TD = 250’ / TVD = 250’ Casing Detail Size Type Wt Grade Conn. ID Top Btm 4.5" Surf Csg 8.21# - PHD V Wall 4” Surf ±100’ ±100’ 4-1/2” 3.83” Hole Drilling Info Hole Section Casing Surface 4-1/2" x OH Yukon Basin Site Layout Sump - 5’ x 20’ Mixing Tank 8’ x 3’ Trash Pump 2’ x 2’ LF 70 Boartlong Year Rig 8’ x 5’ Bean Pump 2’ x 3’ Fuel Cell 3’ x 3’ (2) Tool Boxes 3’ x 5’ Fly Cage 3’ x 4’ Drill Rods 10’ joints Circulating Water Yukon Flats Stratigraphic Test Project The following Best Management Practices are to be used in conjunction with the U.S. Army Corps of Engineers (USACE) Nationwide Permit 6 Survey Activities (NWP 6). As a condition of a NWP 6 Permit, compliance with all applicable General and Regional Conditions is required. The NWP 6 and applicable General and Regional Conditions are attached and considered a part of these BMPs. Best Management Practices (BMPs) x Drill pads o Drill pads should be located in uplands where practicable. o Drill pads in wetlands should be constructed on blasting mats or other temporary low impact materials or platforms to protect surface vegetation. o Blasting mats or other temporary low impact materials or platforms should also be used for staging of materials and workers. x Drilling Fluids and Cuttings o Recirculation or settling tanks or sumps should be used to recover drilling fluids. o Recirculation or settling tanks or sumps should be covered to prevent rainwater from creating overflows of sediment laden waters. o As much time as practicable should be allowed for settling of particulates from drill fluids prior to discharge. o Pumps should be in good serviceable condition and staged on impervious, bermed pads or tarps to contain potential spills or leaks of fuel and lubricants. o Spill kits should be readily accessible and located near all pumps in service. o Sufficient hose should be available to allow for pumping and discharge of drilling fluids from settling tanks away from wetlands and other waters of the U.S. such as streams or lakes. o Discharge pump hoses should have a skimmer or floating intake to reduce amount of particulates discharged. o Discharge hose outlet should be placed on plastic sheeting to create a laminar sheet flow during discharge to prevent scouring of surface sediments and vegetation. o Discharge areas should be periodically monitored to ensure discharges are not entering jurisdictional waters such as streams or lakes. o No discharges should be allowed to enter anadromous waters or lakes. o When drilling within a wetland, cuttings and other drill-generated sediments should be transported to nearby upland locations for disposal. x Refueling and Fuel Storage o Fuel storage in wetlands is discouraged unless not practicable. o Fuel should be stored in containers no larger than 55 gallons with appropriate containment, such as impervious tarps, plastic sheeting, or other type of containment structure. o Fuel containers and equipment should be inspected routinely to detect and prevent leaks or spills. o Spill kits should be readily accessible and placed in close proximity to fuel storage or refueling sites. o No refueling or fuel storage should be within 100 feet of streams or lakes. x General Project Management o The project should be managed in a manner that reduces overall impacts to the environment. This management BMP could include limiting footprint of drill sites, consolidating fuel storage sites, reducing time on-site to limit cumulative impacts, and other practices that prevent extended impacts to wildlife and vegetation. x Training o Management and workers should be familiar with the restrictions imposed by the Nationwide Permit and the applicable General and Regional conditions. o Management and workers should be familiar in the BMPs proposed for this project. o Workers should be trained in the use of Oil Spill Kits for response to spills, leaks, and other hazardous discharges. 3 May 2021 Steve Davies Senior Petroleum Geologist Alaska Oil and Gas Conservation Commission (AOGCC) SUBJECT: Yukon Flats Basin Stratigraphic Test Well Program Shallow Hazards Evaluation to Accompany Drilling Permits Hi Steve, The goals of the herein proposed stratigraphic test well program are to: a) determine the thermal maturity of the shallow subsurface strata, b) determine the source of the high-frequency magnetics signal seen on the aerial gravity & magnetics survey, and c) map structure. With the data we have in-hand, we perceive the risk of encountering shallow gas to be very low, based on twenty-eight shallow stratigraphic test wells drilled by Exxon around the perimeter of the basin, by one 2200’ well drilled in Fort Yukon, and by the absence of shallow amplitudes on 2D seismic in the vicinity. Index map of Yukon Flats Basin, showing light blue colored Doyon subsurface estate, the proposed stratigraphic test well locations (red triangles), 2D seismic lines, and the coalbed methane drill well in Fort Yukon, outlined in pink. The scale bare is 40 miles. Background Data The following data were analyzed in order to evaluate the potential shallow gas hazards in the Yukon Flats Basin near our proposed stratigraphic test wells: x Exxon stratigraphic test wells: 28, located along perimeter of basin x LL&E stratigraphic test wells: 14, located 85 miles east x Field geology: Exxon, LL&E, Arco, Hilcorp x 343 miles of 2D seismic data (Exxon) x 98+ miles of 2D seismic data at Stevens Village (Doyon), 25’ shotholes x Wells: 4 (CBM and Doyon 1,2,3)—no shallow hazards identified x Aerial gravity & magnetics survey: 16,404 miles of data Within the Yukon Flats Basin, in Fort Yukon, the USGS drilled the DOI-04-1A well to a total depth of 2288’ in 2004. The objective for the well was to analyze coals for their coalbed methane energy resource potential, targeted gas for local use. Upper and Lower coals were cored, and wireline logs run include gamma ray and resistivity. Permafrost was encountered at 280 feet. It was noted on the USGS log that water wells in the Fort Yukon area are 50 feet deep. No evidence of shallow gas hazards were noted in the USGS reports. Northwest-southeast cross section through three shallow Exxon stratigraphic test wells, and the USGS DOI-04-1A Coalbed Methane well at Fort Yukon. No shallow hazardous gas was encountered at any of the 28 Exxon stratigraphic test wells, nor at the coalbed methane well test. In 1985-6, Exxon drilled twenty-eight shallow stratigraphic test wells along the perimeter of the Yukon Flats Basin, to depths of 43-211 feet. These wells were cored from surface to total depth. The average depth was 103’ TD. No shallow gas hazards were encountered during the drilling operations. The nearest oil- and gas-targeted exploratory drilling activity occurred 80-90 miles east of our proposed stratigraphic test wells, in the Kandik Basin, where in 1976 and 1977 Louisiana Land & Exploration drilled the Doyon 1, 2, and 3 wells to total depths of 11,044, 9123, and 13533 feet, respectively. Although no shallow gas hazards were encountered while drilling, lost circulation zones occurred in shallow Devonian carbonate karst. We do not anticipate shallow carbonates, nor shallow gas hazards, in the vicinity of our proposed shallow stratigraphic test wells. In 2010, Doyon Ltd. acquired 2D seismic data in the Stevens Village area located 65 miles to the west of our proposed stratigraphic test wells. These shot holes were drilled to a depth of 25 feet, and encountered generally hard clay, gravels, and sand. No shallow gas hazards were noted in any of the shothole logs. Below is an example of a logged seismic shothole: Date Shot # Charge Size # OF Caps Depth Comments Driller 2/23/2010 1002.5 2 2 25 Ft Hard Clay/Shale 40 2/23/2010 1003.5 2 2 25 Ft Hard Clay, Sand 41 2/23/2010 1004.5 2 2 25 Ft Hard Clay 37 2/23/2010 1006.5 2 2 25 Ft Clay/Gravel 42 2/23/2010 1008.5 2 2 25 Ft Hard Sandy Clay 30 2/23/2010 1010.5 2 2 25 Ft Sandy Clay 23 2/23/2010 1012.5 2 2 25 Ft Hard Clay/Shale 40 2/23/2010 1014.5 2 2 25 Ft Hard Clay, Sand 41 2/23/2010 1016.5 2 2 25 Ft Hard Clay 37 2/23/2010 1018.5 2 2 25 Ft Clay/Gravel 42 2/23/2010 1021.5 2 2 25 Ft Hard Sandy Clay 30 2/23/2010 1023.5 2 2 25 Ft Sandy Clay 23 2/23/2010 1024.5 2 2 25 Ft Hard Clay/Shale 40 2/23/2010 1026.5 2 2 25 Ft Hard Clay, Sand 41 2/23/2010 1028.5 2 2 25 Ft Hard Sandy Clay 30 2/23/2010 1030.5 2 2 25 Ft Hard Clay 37 2/23/2010 1032.5 2 2 25 Ft Clay/Gravel 42 2/23/2010 1034.5 2 2 25 Ft Hard Clay, Sand 41 STEVENS VILLAGE - 2D 2010 DOYON Seismic shothole records. No shallow gas hazards were indicated in the drilling logs . Redacted 9/1/2023 M. Guhl Redacted 9/1/2023 M. Guhl Revised 2/2015 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 No. _____________, API No. 50-_______________________. Production should continue to be reported as a function of the original API number stated above. Pilot Hole In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name (_______________________PH) and API number (50-_____________________) from records, data and logs acquired for well (name on permit). Spacing Exception The permit is approved subject to full compliance with 20 AAC 25.055. Approval to produce/inject is contingent upon issuance of a conservation order approving a spacing exception. (_____________________________) as 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' sample intervals from below the permafrost or from where samples are first caught and 10' 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 well ( ) until after ( ) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (________________________) must contact the AOGCC to obtain advance approval of such 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 (_______________________________) 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 well logs run must be submitted to the AOGCC within 90 days after completion, suspension or abandonment of this well. X Exploratory - NAYukon Flats Area Hilcorp Alaska, LLC Lithology log in lieu of mudlog. DLB Chips from continuous core must be collected every one foot per 20 AAC 25.071. 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