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Home My WebLink About213-1617. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-23D Mill CIBP Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-161 50-029-20775-04-00 13251 Surface Intermediate Liner Liner Liner 9021 2660 8548 918 604 3783 13115 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-1/4" x 2-7/8" 9023 34 - 2694 32 - 8580 8426 - 9344 9156 - 9760 9367 - 13150 34 - 2694 32 - 7698 7575 - 8400 8221 - 8777 8422 - 9023 13055 2670 4760 5410 7500 10530 None 5380 6870 7240 8430 10160 10330 - 13112 4-1/2" 12.6# L80 30 - 9167 9022 - 9023 Conductor 80 20" 34 - 114 34 - 114 1490 470 4-1/2" Baker S3 Packer 9110 8178 Torin Roschinger Operations Manager Leif Knatterud leif.knatterud@hilcorp.com 9075644667 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028305, 0028310 30 - 8232 N/A N/A 575 445 25169 45357 489 0 375 840 1120 830 N/A 13b. Pools active after work:Prudhoe Oil No SSSV Installed 9110, 8178 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 10:17 am, Jun 13, 2025 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2025.06.13 04:40:23 - 08'00' Torin Roschinger (4662) JJL 6/30/25 RBDMS JSB 061825 DSR-6/18/25 ACTIVITY DATE SUMMARY 6/5/2025 SLB CTU #8 1.75"CT 0.156"WT. Job Scope: Mill CIBP Mobilize CTU #8 & MIRU. Start 7 day BOP test. ***Job Continued on 6/6/25*** 6/6/2025 SLB CTU #8 1.75" .156" WT. Job Scope: Mill CIBP Complete 7 day BOP test. Function test BOP on well. Make up BOT 2.80" Junk mill BHA & RIH. Tag CIBP @ 10,880' CTM. Milled on CIBP for ~ 2 hour 35 mins w/ 3 stalls before lost WHP and CIBP started moving. Worked milled CIBP down & tagged XO @ 13,048' E / 13.057' M. POOH, FP TBG. RDMO CTU ***Job Complete*** 6/7/2025 ***WELL S/I ON ARRIVAL*** DRIFT & BRUSH TBG TO 9140' SLM SET DREAM CATCHER IN X NIPPLE @ 9133' MD RUN CHECK SET TO CONFIRM DREAM CATCHER SET ***WELL SI ON DEPARTURE*** Daily Report of Well Operations PBU C-23D 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-23D Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-161 50-029-20775-04-00 13251 Surface Intermediate Liner Liner Liner 9021 2660 8548 918 604 3783 10875 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-1/4" x 2-7/8" 9023 34 - 2694 32 - 8580 8426 - 9344 9156 - 9760 9367 - 13150 34 - 2694 32 - 7698 7575 - 8400 8221 - 8777 8422 - 9023 13055 2670 4760 5410 7500 10530 10875 5380 6870 7240 8430 10160 10330 - 13112 4-1/2" 12.6# L80 30 - 9167 9022 - 9023 Conductor 80 20" 34 - 114 34 - 114 1490 470 4-1/2" Baker S3 Packer 9110 8178 Torin Roschinger Operations Manager Finn Oestgaard finn.oestgaard@hilcorp.com 907-564-5026 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028305, 0028310 30 - 8232 N/A N/A 400 1107 43932 39458 192 82 500 1450 1200 900 324-595 13b. Pools active after work:Prudhoe Oil No SSSV Installed 9110, 8178 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 1:10 pm, Nov 21, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.11.21 12:52:17 - 09'00' Torin Roschinger (4662) RBDMS JSB 112724 WCB 2-11-2025 DSR-11/21/24 ACTIVITYDATE SUMMARY 11/11/2024 ***WELL S/I ON ARRIVAL*** PULLED 4-1/2' DREAMCATCHER FROM X-NIP @ 9,133' MD(empty) ***WELL LEFT S/I ON DEPARTURE, PAD-OP NOTIFIED OF STATUS*** 11/16/2024 SLB CTU 8, 1.75" x .156 GT-90. Job Objective: Set CIBP and Extended adperf MIRU. Make up HES logging tools and RIH. L&K well with KCL while RIH. Log from 11,000' - 9,000' and flag pipe at 10,850'. POOH and download data -13' correction confirmed by geo. Make up NS 3-1/4" CIBP BHA and RIH. Set CIBP at 10875. PUH and pressure test plug. Circ out well with 1%KCL. ***Job Continued on 11/17/2024*** 11/17/2024 SLB CTU 8, 1.75" x .156 GT-90. Job Objective: Set CIBP and Extended adperf Flow check well and POOH pumping pipe displacement. Flow check well at surface, no flow. Well control drill with all crews - kick while tripping. Open hole deploy 220' of 2" perf guns. RIH and tag CIBP, correct depth to bottom shot. PUH and perforate 10,330-10,550 with HES 2" MaxForce guns 6spf 60 degree phasing. POOH maintainin hole fill. Flow check well at surface and undeploy perf guns. FP Tubing and RDMO CTU. ***Job Complete*** Daily Report of Well Operations PBU C-23D y perforateg 10,330-10,550 g Make up NS 3-1/4" CIBP BHA and RIH. Set CIBP at 10875 7. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in this pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By:Date: APPROVED BY THE AOGCCCOMMISSIONER PBU C-23D Ext Add Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-161 50-029-20775-04-00 341J ADL 0028305, 0028310 13251 Surface Intermediate Liner Liner Liner 9021 2660 8548 918 604 3783 13115 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-1/4" x 2-7/8" 9023 34 - 2694 32 - 8580 8426 - 9344 9156 - 9760 9367 - 13150 2490 34 - 2694 32 - 7698 7575 - 8400 8221 - 8777 8422 - 9023 13055 2670 4760 5410 7500 10530 None 5380 6870 7240 8430 10160 10950 - 13112 4-1/2" 12.6# L80 30 - 91679020 - 9023 Conductor 80 20" 34 - 114 34 - 114 1490 470 4-1/2" Baker S3 Packer No SSSV Installed 9110, 8178 Date: Torin Roschinger Operations Manager Finn Oestgaard finn.oestgaard@hilcorp.com 907.564.5026 PRUDHOE BAY 11/10/2024 Current Pools: Prudhoe Oil Proposed Pools: Prudhoe Oil Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.10.11 16:31:34 - 08'00' Torin Roschinger (4662) 324-595 By Grace Christianson at 8:30 am, Oct 14, 2024 Perforate DSR-10/14/24SFD 10/26/2024MGR28OCT24 10-404 JLC 10/29/2024 Gregory Wilson Digitally signed by Gregory Wilson Date: 2024.10.30 05:24:26 -08'00'10/30/24 RBDMS JSB 103024 CCT Extended Adperf Well:C-23D Well Name:C-23D API Number::50-029-020775-04 Current Status::Operable producer, offline Pad::C-Pad Estimated Start Date::11/10/2024 Rig::CT Reg.. Approval Req’d?10-403/10-404 Date RReg. Approval Rec’vd:: Regulatory Contact:Abbie Barker Permit to Drill Number:2131610 First Call Engineer Finn Oestgaard Contact:907-350-8420 (C) Second CCall Engineer:Michael Hibbert Contact:907-903-5990 (C) Current Bottom Hole Pressure:3250 psi Estimated based on average Ivishak Pressure KWF:7.2 ppg Use seawater or 1% KCL MPSP:2490 psi Most recent SIWHP – 8/24/24 Max Dev:98 deg At 12,695’ MD Min ID:2.377” 13,055’ MD Tie In Log Halliburton Coil Flag 10/26/23 Last SIWHP 2490 psi - 8/24/2024 Brief Well Summary: C-23D is a coil sidetrack drilled in 2013 targeting the oil column in Z2 just above the MHO. Over it’s lifetime the well has gone through 4 stages of plug and perfs. In May of this year all perforations were opened to flow and showed minimal recharge. The well is currently SI for HGOR. This intervention will set a plug shutting off all current perforation open to flow and target accessing sands towards the heel of the well in between what is believed to be MHOand the vertical section of the well. Due to the proximity to the MHO premium charges are being selected. Objective: Set CIBP & Perforate 220’ of Z2A. Procedure: Slickline 1. Pull dream catcher, if contains any contents send pictures to Finn Oestgaard Coiled Tubing –Drift/Tie-In & Plugset 1. MU Tie-In/Drift BHA (configuration per WSL discretion), RIH and flag for plug set (target set depth 10,875’) Contact Finn Oestgaard & Corey Ramstad for tie-in correlation. 2. Set CIBPmid element @ 10,875’ Setting in 3-1/4” Liner 6.6#, ID = 2.85” (will need to pass through 3-1/2” Xnipple @ 9,527’ w/ ID=2.812”) Coil –Extended Perforating Notes: x Remote gas monitoring for H2S and LELs are required for Open Hole Deployment Operations x Due to the necessary open hole deployment of Extended Perforating jobs, 24-hour crew and WSS coverage is required. The well will be killed and monitored before making up the initial perf guns. This is generally done during the drift/logging run. This will provide guidance as to whether the well will be killed by bullheading or circulating bottoms up throughout the job. If pressure is seen immediately after perforating, it will either be killed by bullheading while POOH or circulating bottoms up through the same port that opened to shear the firing head. CCT Extended Adperf Well:C-23D 1. After MU MHA and pull testing the CTC, tag-up on the CT stripper to ensure BHA cannot pull through the brass upon POOH with guns. 2. Bullhead 1.2x wellbore volume ~186 bbls 1% KCL/SW down tubing. Max tubing pressure 2500 psi. (This step can be performed any time prior to open-hole deployment of the perf guns. Timing of the well kill is at the discretion of the WSS.) a.Wellbore volume to top perf (10,950’)=155 bbls b. 4-1/2” Tubing – 9,367’ X .0152 bpf = 142 bbl c. 3-1/2” Liner – 54’ X 0.0087 bpf = 1 bbls d. 3-1/4” Liner – 843’ X 0.0079 bpf = 12 bbls 3. At surface, prepare for deployment of TCP guns. 4. Confirm well is dead. Bleed any pressure off to return tank. Kill well w/ KKWF, 8.4 ppg 1% KCl or 8.5 ppg as needed. Maintain hole fill taking returns to tank until lubricator connection is re-established. Fluids man-watch must be performed while deploying perf guns to ensure the well remains killed and there is no excess flow. 5.*Perform drill by picking up safety joint with TIW valve and space out before MU guns. Review well control steps with crew prior to breaking lubricator connection and commencing makeup of TCP gun string. Once the safety joint and TIW valve have been spaced out, keep the safety joint/TIW valve readily accessible near the working platform for quick deployment if necessary. e.At the beginning of each job, the crossover/safety joint must be physically MU to the perf guns one time to confirm the threads are compatible. 6.Break lubricator connection at QTS and begin makeup of TCP guns per schedule below. Constantly monitor fluid rates pumped in and fluid returns out of the well. Fluids man-watch must be performed while deploying perf guns to ensure the well remains killed and there is no excess flow. Perf Schedule Use 2”Maxforce 070 charges 6 SPF Perf Interval (tie-in depths)Total Gun Length Weight of Gun (lbs) 10,330’ – 10,550’ – gun 220’~1518 lbs (5.58 ppf) 7. RIH with perf gun and lightly tag CIBP for depth control. Pickup and perforate interval per Perf Schedule above. a. Note any tubing pressure change in WSR. 8. After perforating, PUH to top of liner or into tubing to ensure debris doesn’t fall in on the guns and stick the BHA. Confirm well is dead and re-kill if necessary before pulling to surface. 9. Pump pipe displacement while POOH. Stop at surface to reconfirm well is dead. Kill well if necessary. 10. Review well control steps and Standing Orders with crew prior to breaking lubricator connection and commencing breakdown of TCP gun string. 11. Ensure safety joint and TIW valve assembly are on-hand before breaking off lubricator to LD gun BHA. 12. RDMO CTU. 13. Turn well over to Operations POP. Make up PCE. - mgr CCT Extended Adperf Well:C-23D Attachments: x Wellbore Schematic x Proposed Schematic x Tie-In Log x BOPE diagram x Standing Orders x Equipment Layout diagram x Sundry Change Form CCT Extended Adperf Well:C-23D Current Schematic CCT Extended Adperf Well:C-23D CCT Extended Adperf Well:C-23D Proposed Wellbore Schematic CIBP @ 10,880’ Proposed Perforations 10,330’ – 10,550’ (220’) CCT Extended Adperf Well:C-23D Tie-In Log CCT Extended Adperf Well:C-23D Perforate 10,330’ – 10,550’ CCT Extended Adperf Well:C-23D Set CIBP Mid-Element @ 10,875’ CCT Extended Adperf Well:C-23D BOP Schematic CCT Extended Adperf Well:C-23D CCT Extended Adperf Well:C-23D CCT Extended Adperf Well:C-23D Changes to Approved Sundry Procedure Date: Subject: Sundry #: Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to the AOGCC by the “first call” engineer. AOGCC written approval of the change is required before implementing the change. Step Page Date Procedure Change HNS Prepared BBy (Initials) HNS Approved By (Initials) AOGCC Written Approval Received (Person and Date) Approval: Operations Manager Date Prepared: Operations Engineer Date 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-23D Mill CIBP Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-161 50-029-20775-04-00 13251 Surface Intermediate Liner Liner Liner 9021 2660 8548 918 604 3783 13115 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-1/4" x 2-7/8" 9023 34 - 2694 32 - 8580 8426 - 9344 9156 - 9760 9367 - 13150 34 - 2694 32 - 7698 7575 - 8400 8221 - 8777 8422 - 9023 13055 2670 4760 5410 7500 10530 None 5380 6870 7240 8430 10160 10950 - 13112 4-1/2" 12.6# L80 30 - 9167 9020 - 9023 Conductor 80 20" 34 - 114 34 - 114 1490 470 4-1/2" Baker S3 Packer 9110 8178 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028305, 0028310 30 - 8232 N/A N/A 177 577 17231 31042 30 846 200 1450 990 980 N/A 13b. Pools active after work:Prudhoe Oil No SSSV Installed 9110, 8178 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 7:57 am, May 22, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2024.05.21 16:45:20 -08'00' Torin Roschinger (4662) DSR-5/22/24WCB 7-30-2024 RBDMS JSB 052824 ACTIVITY DATE SUMMARY 5/15/2024 LRS CTU 1, 1.5" Blue Coil. Job Objective: Mill CIBP MIRU. Function test BOPs upon installation. Make up and RIH with BOT 2.75" venturi burnshoe BHA. Load well with 170 bbl of 1% KCL. Tag plug at 11366 and begin milling. Shortly after milling, plug lost seal and lost returns. PUH and have sticky and eratic weights. Work pipe out of liner and bullhead well again. RBIH to resume milling the CIBP. Stopped making progress and able to get a stall. POOH to check tools. Had a very minimal amount of slip material in the venturi. Shoe had minimal wear and not packed off, nor screen plugged off - did not lose suction. Drop venturi and swap to a 2.75" junk mill. Tag plug 11,374' ctmd, continue milling. Got the plug moving, chased down to 13,075' CTMD, POOH. ***Job Continued 5/16/24*** 5/16/2024 LRS CTU 1, 1.5" Blue Coil. Job Objective: Mill CIBP ***Job continued from 5/15/24*** Make up and RIH with BOT 2.75" venturi burnshoe BHA. Tag 13,071' ctmd. Burn on plugs, Stack weight down and POOH dry. OOH with venturi and had ~1/4 cup of steel debris in venturi, no core. Relay results to OE and decision to RDMO and have slickline set a dream catcher. Well freeze protected with 5bbl of 60/40 and 33 bbl of diesel. Pad operator notified of well status. RDMO. ***Job Complete*** 5/16/2024 *** WELL SHUT IN ON ARRIVAL *** STANDBY FOR WELL SUPPORT *** CONTINUE WSR ONTO 5/17/24 *** 5/17/2024 *** CONTINUED WSR FROM 5/16/24 *** SET DREAM CATCHER IN X-NIPPLE @ 9,133' MD (OAL-38") *** WELL SHUT IN ON DEPARTURE *** Daily Report of Well Operations PBU C-23D Tag plug at 11366 and gg begin milling. Shortly after milling, plug lost seal and lost returns. PUH and haveggy gg sticky and eratic weights. Work pipe out of liner and bullhead wefll again. RBIH toygg resume milling the CIBP. Stopped making progress and able to get a stall. POOH to gggg check tools. Had a very minimal amount of slip material in the venturi. Shoe had y minimal wear and not packed off, nor screen plugged off - did not lose suction. Dropgg venturi and swap to a 2.75" junk mill. Tag plug 11,374' ctmd, continue milling. Got the jgg plug moving, chased down to 13,075' CTMD, POOH 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-23D Extended Perf w CTU, Mill CIBP Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-161 50-029-20775-04-00 13251 Surface Intermediate Liner Liner Liner 9021 2660 8548 918 604 3783 11355 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-1/4" x 2-7/8" 9024 34 - 2694 32 - 8580 8426 - 9344 9156 - 9760 9367 - 13150 34 - 2694 32 - 7698 7575 - 8400 8221 - 8777 8422 - 9023 13045 2670 4760 5410 7500 10530 11355 5380 6870 7240 8430 10160 10950 - 13112 4-1/2" 12.6# L80 30 - 9167 9020 - 9023 Conductor 80 20" 34 - 114 34 - 114 1490 470 4-1/2" Baker S3 Packer 9110, 8178 9110 8178 Aras Worthington for Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028305, 0028310 30 - 8232 N/A N/A 396 866 36468 5743 48 472 1130 1450 899 360 323-485 13b. Pools active after work:Prudhoe Oil No SSSV Installed STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Samantha Carlisle at 10:03 am, Nov 14, 2023 Digitally signed by Aras Worthington (4643) DN: cn=Aras Worthington (4643) Date: 2023.11.10 16:39:57 -09'00' Aras Worthington (4643) DSR-11/15/23 RBDMS JSB 111623 WCB 4-26-2024 ACTIVITY DATE SUMMARY 10/25/2023 LRS CTU #1 1.5" Blue Coil Job Scope: Mill CIBP, Set CIBP MIRU. Function test BOPs on the well. RIH with YJ 2.75" venturi/burshoe BHA. Tagged high at 11532 and worked down to CIBP at 12040 CTM. Milled CIBP and pushed down to XO at 13045 CTM. Worked CIBP at XO and POOH. ***Job in Continued on 10/26/2023*** 10/26/2023 LRS CTU 1, 1.5" Blue Coil. Job Objective: Mill CIBP, Set CIBP, & Extended Adperf. POOH with 2.75" venturi burnshoe BHA. CT back at surface and freeze protect the flowline with 10bbl of 60/40, 64 bbl of diesel, and 5 bbl of 60/40. Lay down venturi and recovere 4 slip segments, multiple pieces of a cone, and a body lock ring. Make up northern solutions 1.69" CTC and bump up against brass. RIH with HES 2.400" GR/CCL carrier and 2.5" JSN. Tag multiple times starting at 10220. perform fluff and stuff to 11,450. Dry drift from 10,200 down to 11,450. log to 9,500'. POOH +2' correction. M/U NS Premium bridge plug, RIH Kill well w/160bbls SW, 10bbls 60/40, Correct depth at flag to mid element. Set plug at 11,355' POOH maintaining hole fill. Overpull at packer at 9100 CTM - similar to previous coil CIBP sets in this well. Work pipe and get free. POOH circulating well to 1% slick KCL. ***Job Continued on 10/27/2023*** 10/27/2023 LRS CTU 1, 1.5" Blue Coil. Job Objective: Mill CIBP, Set CIBP, & Extended Adperf. Continue POOH with CIBP setting BHA circulating well to 1% slick KCL. Lay in 60/40 from 2500'. Hold well control drill - kick while deploying guns. Flow check well at surface, no flow. Lay down CIBP setting BHA. Deploy perf gun BHA. RIH, correct depth off CIBP. Perforate interval 10,950'-11,115' w/ 2" HES MaxForce guns 60 degree phase 6SPF. POOH, Maintaining hole fill, L/D perf guns. Freeze protect well with 38bbls 60/40. RDMO ***Job Complete*** Daily Report of Well Operations PBU C-23D Milled CIBP andgg g pushed down to XO at 13045 CTM. ygyg Perforate interval 10,950'-11,115' w/ 2" HES MaxForce guns 60 degree phase 6SPF. POOH g Set plug at 11,355' POOH 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-23D Mill CIBP, Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-161 50-029-20775-04-00 13251 Surface Intermediate Liner Liner Liner 9021 2660 8548 918 604 3783 12050 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-1/4" x 2-7/8" 9025 34 - 2694 32 - 8580 8426 - 9344 9156 - 9760 9367 - 13150 34 - 2694 32 - 7698 7575 - 8400 8221 - 8777 8422 - 9023 13055 2670 4760 5410 7500 10530 12050 4930 6870 7240 8430 10160 11402 - 13112 4-1/2" 12.6# L-80 30 - 9167 9022 - 9023 Conductor 80 20" 34 - 114 34 - 114 1490 470 4-1/2" Baker S3 9110, 8178 9110 8178 Stan Golis Sr. Area Operations Manager Ron Phillips Ron.Phillips@hilcorp.com 907.317.5092 PRUDHOE BAY, PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028310, 0028305 30 - 8232 N/A N/A 445 1766 36464 18148 66 894 1400 300 891 769 322-467 13b. Pools active after work:Prudhoe Oil No SSSV Installed STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Meredith Guhl at 7:24 am, Jan 23, 2023 Digitally signed by Stan Golis (880) DN: cn=Stan Golis (880), ou=Users Date: 2023.01.20 16:35:35 -09'00' Stan Golis (880) PBU C-23D RBDMS JSB 012623 MDG 9/13/2023 PRUDHOE BAY, PRUDHOE OIL Perforate Mill CIBP, Extended Perf w CTU Sundry Number 322-467 DSR-1/23/23 213-161 Plug Perforations il d biCoiled Tubing Ops WCB 11-3-2023 ACTIVITY DATE SUMMARY 1/7/2023 T/I/O = SSV/1250/0+. Temp = SI. Bleed IAP to 300 psi (pre coil). No AL. IA FL @ 5788' (Sta# 4 Dome, 309 bbls). Bled IA to OT to 300 psi in 2.25 hrs. IA FL unchanged. Monitored for 30 min, IAP unchanged, IA FL unchanged. FWHP's = SSV/300/0. SV, WV, SSV = C. MV = O. IA & OA = OTG. 14:40. 1/9/2023 LRS CTU 2 1.5" Blue Coil, Job Objective: Mill CIBP, Set CIBP, and extended Adperf MIRU CTU. Bullhead 260 bbls of kcl. RIH with YJ 1.69" milling BHA with 2.70" 3-bld junk mill. Tagged plug at 12687 CTM and milled plug. Pushed to 12720 CTM and got bit stuck. Worked pipe free and POOH. Swap to 2.125" motor and 2.700" venturi burnshoe. ***Job Continued on 1/10/2023*** 1/10/2023 LRS CTU 2 1.5" Blue Coil, Job Objective: Mill CIBP, Set CIBP, and extended Adperf Continue in hole with 2.125" motor and 2.700" venturi burnshoe.Begin running venturi at 11600'. Work plug down to 13024 and begin stalling. Continue to work plug down to 2.875" XO at 13055 CTM. Recover half top of CIBP. Relay results to OE and decision made to leave remants at 13055' and move forward. Make up HES logging & CIBP drift BHA. Log from 12300' -10700' w/ flag at 12050'. Log shows a -8' correction. Tied- in to PDS Coil Flag log dated 21- May -2014. Make up and RIH with NS 3.25" CIBP (OD =2.5"). Tie in at flag and set CIBP at 12050'. POOH pumping pipe displacement. Overpulled at the production packer 9100' - same as last coil CIBP set. Lay in diesel freeze protect from 3500'. ***Job Continued on 1/11/22*** 1/11/2023 LRS CTU 2 1.5" Blue Coil, Job Objective: Mill CIBP, Set CIBP, and Extended Adperf Continue to lay in diesel freeze protect from 3500'. Lay down CIBP setting BHA. Perform weekly BOP test 250/4000. Start standing by for winds. ***Job Continued on 1/11/22*** 1/12/2023 LRS CTU #2 1.5" Blue Coil. Job Objective: Mill CIBP, Set CIBP, Extended Adperf Continue standing by for high winds. ***Job in Progress*** 1/13/2023 LRS CTU #2 1.5" Blue Coil. Job Objective: Mill CIBP, Set CIBP, Extended Adperf Continue standing by for high winds. MU YJ 1.69" MHA & PT. Clear snow around the unit for the WS crane and HES gun trailer. Perform no-flow test and prep to deploy perf guns. ***Job in Progress*** 1/14/2023 LRS CTU #2 1.5" Blue Coil. Job Objective: Mill CIBP, Set CIBP, Extended Adperf MU & open hole deploy HES 2.00" x 240' (220' loaded) Maxforce, 6 SPF, 60 degree phased guns. RIH & tag 3-1/4" CIBP at 12,050' MD. PU and perforate 11,402' - 11,502' & 11,522' - 11,642'. Good indication of shot, WHP went on a vac. POOH while loading the well with KCL down the CTBS. Flow check well and the well is on minimal losses. Retreive perf gun. Freeze protect well with 10bbl of 60/40 and 28bbl of diesel. Pad Operator notified on well status and to POP with DPBGL. RDMO. ***Job Complete*** Daily Report of Well Operations PBU C-23D Bullhead 260 bbls of kcl. RIH with YJ 1.69" milling BHA with 2.70" 3-bld g junk mill. Tagged plug at 12687 CTM and milled plug. Pushed to 12720 CTM and got j bit stuck. LRS CTU 2 1.5" Blue Coil, Job Objective: Mill CIBP, Set CIBP, and extended Adperfj j MU & open hole deploy HES 2.00" x 240' (220' loaded) Maxforce, 6 SPF, 60 degreey() phased guns. RIH & tag 3-1/4" CIBP at 12,050' MD. PU and perforate 11,402' -gg 11,502' & 11,522' - 11,642' j Continue in hole with 2.125" motor and 2.700" venturi burnshoe.Begin running venturigg at 11600'. Work plug down to 13024 and begin stalling. Continue to work plug down gggg to 2.875" XO at 13055 CTM. Recover half top of CIBP. Relay results to OE andy decision made to leave remants at 13055' and move forward. Worked pipe free and POOH gg g The new CIBP and the milled CIBP fish are shown at the correct depths on the new WBS, below. -WCB WHP went on a vac. POOH while loading the well with KCL down the CTBS. Flow check well and the well is ong minimal losses. Retreive perf gun. Freeze protect well with 10bbl of 60/40 and 28bbl of diesel. Make up HES logging & CIBP drift BHA. Log from 12300' -10700' w/ flag at 12050'. Log shows a -8' g gg correction. Tied- in to PDS Coil Flag log dated 21- May -2014. Make up and RIH withgg y NS 3.25" CIBP (OD =2.5"). 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$/$6.$2,/$1'*$6&216(59$7,21&200,66,21 $33/,&$7,21)25681'5<$33529$/6 $$& &RPP &RPP6U3HW(QJ 6U3HW*HR 6U5HV(QJ )RUP5HYLVHG$SSURYHGDSSOLFDWLRQLVYDOLGIRUPRQWKVIURPWKHGDWHRIDSSURYDO By Anne Prysunka at 4:09 pm, Aug 05, 2022 'LJLWDOO\VLJQHGE\6WDQ*ROLV '1FQ 6WDQ*ROLV RX 8VHUV 'DWH 6WDQ*ROLV &2-6)' 6)' '650*5$8* GWV -/& Jeremy Price Digitally signed by Jeremy Price Date: 2022.08.15 14:11:55 -08'00' RBDMS JSB 081622 ϳͬϭͬϮϬϮϮ ʹ sĞƌƐŝŽŶ ϭ ǆƚĞŶĚĞĚ ĚĚƉĞƌĨƐ tĞůů͗ͲϮϯ Wd͗ϮϭϯͲϭϲϭ W/͗ ϱϬϬϮϵϮϬϳϳϱϬϰ tĞůůEĂŵĞ͗ͲϮϯW/EƵŵďĞƌ͗ϱϬͲϬϮϵͲϮϬϳϳϱͲϬϰ ƵƌƌĞŶƚ^ƚĂƚƵƐ͗KƉĞƌĂďůĞ ZŝŐ͗^ůŝĐŬůŝŶĞͬ Žŝů ƐƚŝŵĂƚĞĚ^ƚĂƌƚĂƚĞ͗ϯYϮϬϮϮ ƐƚŝŵĂƚĞĚƵƌĂƚŝŽŶ͗ϱĚĂǇƐ ZĞŐƵůĂƚŽƌǇŽŶƚĂĐƚ͗ďďŝĞĂƌŬĞƌ ϱϲϰͲϰϵϭϱ WĞƌŵŝƚƚŽƌŝůůEƵŵďĞƌ͗Ϯϭϯϭϲϭ &ŝƌƐƚ ĂůůŶŐŝŶĞĞƌ͗ůĂŝƌĞDĂǇĨŝĞůĚ ;ϳϭϯͿϰϰϯͲϯϲϯϭ ;ĐͿ ;ϵϬϳͿϱϲϰͲϰϯϳϱ ;ŽͿ ^ĞĐŽŶĚĂůůŶŐŝŶĞĞƌ͗EŽĞůEŽĐĂƐ ;ϵϬϳͿϮϮϵͲϵϱϯϮ;ĐͿ ;ϵϬϳͿϱϲϰͲϱϮϳϴ;ŽͿ &EƵŵďĞƌ͗/KZ͗ϭϭϱ ǆƉĞĐƚĞĚZĂƚĞƐ WŽƐƚ:Žď͗ ϮϲDD&͕ϴϱϬKW͕ϰϱtW͕ϱйt ƐƚŝŵĂƚĞĚ ŽƚƚŽŵ,ŽůĞWƌĞƐƐƵƌĞ͗ϯϮϮϬ ƉƐŝΛϴ͕ϴϬϬ͛ds ϳ͘ϭ WW' DĂǆŝŵƵŵǆƉĞĐƚĞĚ,W͗ϯϯϱϬƉƐŝΛϴ͕ϴϬϬ͛dsϳ͘ϰWW'ͮǀĞƌĂŐĞ/ǀŝƐŚĂŬ,WͿ 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ƚƚŚĞďĞŐŝŶŶŝŶŐŽĨĞĂĐŚũŽď͕ƚŚĞĐƌŽƐƐŽǀĞƌͬƐĂĨĞƚǇũŽŝŶƚŵƵƐƚďĞƉŚǇƐŝĐĂůůǇDhƚŽƚŚĞƉĞƌĨŐƵŶƐ ŽŶĞƚŝŵĞƚŽĐŽŶĨŝƌŵƚŚĞƚŚƌĞĂĚƐĂƌĞĐŽŵƉĂƚŝďůĞ͘ ϭϰ͘ ƌĞĂŬůƵďƌŝĐĂƚŽƌĐŽŶŶĞĐƚŝŽŶĂƚYd^ĂŶĚďĞŐŝŶŵĂŬĞƵƉŽĨdWŐƵŶƐƉĞƌƐĐŚĞĚƵůĞďĞůŽǁ͘ ŽŶƐƚĂŶƚůǇ ŵŽŶŝƚŽƌĨůƵŝĚƌĂƚĞƐƉƵŵƉĞĚŝŶĂŶĚĨůƵŝĚƌĞƚƵƌŶƐŽƵƚŽĨƚŚĞǁĞůů ͘&ůƵŝĚƐŵĂŶͲǁĂƚĐŚŵƵƐƚďĞƉĞƌĨŽƌŵĞĚ ǁŚŝůĞĚĞƉůŽǇŝŶŐƉĞƌĨŐƵŶƐƚŽĞŶƐƵƌĞƚŚĞǁĞůůƌĞŵĂŝŶƐŬŝůůĞĚĂŶĚƚŚĞƌĞŝƐŶŽĞǆĐĞƐƐĨůŽǁ͘ ͲϮϯ WĞƌĨ^ĐŚĞĚƵůĞ WĞƌĨ/ŶƚĞƌǀĂů WĞƌĨ>ĞŶŐƚŚ 'ƵŶ>ĞŶŐƚŚ tĞŝŐŚƚŽĨ 'ƵŶ;ůďƐͿ ΕϱƉƉĨ ϭϭ͕ϰϬϮ͛Ͳϭϭ͕ϱϬϮ͛ϭϬϬ͛ϭϬϬ͛ϱϬϬ ůďƐ ϭϭ͕ϱϬϮ͛Ͳϭϭ͕ϱϮϮ͛ϮϬ͛>E<ϮϬ͛>E<ϭϬϬ ůďƐ ϭϭ͕ϱϮϮ͛Ͳϭϭ͕ϲϰϮ͛ϭϮϬ͛ϭϮϬ͛ϲϬϬ ůďƐ dŽƚĂů ϮϮϬ͛ϮϰϬ͛ϭϮϬϬ ůďƐ ϭϱ͘ Z/,ǁŝƚŚƉĞƌĨŐƵŶĂŶĚƚŝĞͲŝŶƚŽĐŽŝůĨůĂŐ ĐŽƌƌĞůĂƚŝŽŶ ĂŶĚͬŽƌ /W͘ WŝĐŬƵƉĂŶĚƉĞƌĨŽƌĂƚĞŝŶƚĞƌǀĂů ƉĞƌWĞƌĨ ^ĐŚĞĚƵůĞĂďŽǀĞ͘ Ă͘ EŽƚĞĂŶǇƚƵďŝŶŐƉƌĞƐƐƵƌĞĐŚĂŶŐĞŝŶt^Z͘ ϭϲ͘ ĨƚĞƌƉĞƌĨŽƌĂƚŝŶŐ͕Wh,ƚŽƚŽƉŽĨůŝŶĞƌŽƌŝŶƚŽƚƵďŝŶŐƚĂŝůƚŽĞŶƐƵƌĞĚĞďƌŝƐĚŽĞƐŶ͛ƚĨĂůůŝŶŽŶƚŚĞŐƵŶƐĂŶĚ ƐƚŝĐŬƚŚĞ,͘ŽŶĨŝƌŵǁĞůůŝƐĚĞĂĚĂŶĚƌĞͲŬŝůůŝĨŶĞĐĞƐƐĂƌǇďĞĨŽƌĞ ƉƵůůŝŶŐƚŽƐƵƌĨĂĐĞ͘ ϭϳ͘ WƵŵƉƉŝƉĞĚŝƐƉůĂĐĞŵĞŶƚǁŚŝůĞ WKK,͘ ^ƚŽƉĂƚƐƵƌĨĂĐĞƚŽƌĞĐŽŶĨŝƌŵǁĞůůŝƐĚĞĂĚ͘<ŝůůǁĞůůŝĨŶĞĐĞƐƐĂƌǇ͘ ϭϴ͘ 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Exploratory Development Service 5 Permit to Drill Number:213-161 6.API Number:50-029-20775-04-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Field/Pools:9. Well Name and Number: ADL 028310 & 028305 Property Designation (Lease Number):10. 341 8. PBU C-23D 7.If perforating: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Stratigraphic Current Well Class:4. Type of Request:1.Abandon Plug Perforations 5 Fracture Stimulate Repair Well Operations shutdown Extended Perf w CTU Op Shutdown GAS GSTORWAG SPLUG Abandoned Oil 5 WINJ Exploratory Development 5StratigraphicService WDSPL 12. Attachments: PRESENT WELL CONDITION SUMMARY 13251 Effective Depth MD: L80 11. 1/30/2021 Commission Representative: 15. Suspended Contact Name: Wyatt Rivard Contact Email: wrivard@hilcorp.com Authorized Name: Stan Golis Authorized Title:Operations Manager Authorized Signature: Plug Integrity BOP Test Mechanical Integrity Test Location Clearance Other: Yes No Spacing Exception Required?Subsequent Form Required: Approved by:COMMISSIONER APPROVED BYTHE COMMISSION Date: 5OtherAlter Casing Pull Tubing Conditions of approval: Notify Commission so that a representative may witness Sundry Number: COMMISSION USE ONLY 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval. Detailed Operations Program Packers and SSSV Type: No SSSV Installed Packers and SSSV MD (ft) and TVD (ft): Perforation Depth MD (ft):Tubing Size: Size Total Depth MD (ft):Total Depth TVD(ft): 9021 Effective Depth TVD:Plugs (MD):Junk (MD): Other Stimulate Re-enter Susp Well Suspend Plug for Redrill 5Perforate Perforate New Pool 9110, 8178 No SSSV Installed Date: Liner 3783 3-1/2" x 3-1/4" x 2-7/8"9367 - 13150 8422 - 9023 10160 10530 Well Status after proposed work: 16. Verbal Approval: 5 Change Approved Program 32 - 8580 32 - 7698 14. Estimated Date for Commencing Operations: BOP Sketch 34 - 2694 Conductor 7240 Proposal Summary 13. Well Class after proposed work: 4-1/2" Baker S3 Packer 12730 - 13112 9026 - 9023 4-1/2" 12.6#30 - 9167 Liner 13115 9023 None None 34 - 2694 2670 9-5/8" 7" Contact Phone:(907)777-8547 Date: 5410 2660 493013-3/8"Surface 4760 GINJ 5 Post Initial Injection MIT Req'd? Yes No 5 Comm. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 80 20"34 - 114 470 Intermediate 8548 6870 Liner 918 8426 - 9344 7575 - 8400 604 4-1/2" 9156 - 9760 8221 - 8777 8430 7500 Address:3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 3. No 5Yes Casing Length MD TVD Burst 1490 Tubing Grade:Tubing MD (ft):Perforation Depth TVD (ft): Collapse MPSP (psi): Wellbore Schematic 2430 Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 03/2020 Approved application is valid for 12 months from the date of approval. 34 - 114 By Samantha Carlisle at 9:55 am, Jan 19, 2021 321-036 Digitally signed by Stan Golis DN: cn=Stan Golis, ou=Users Date: 2021.01.15 16:34:48 - 09'00' Stan Golis MGR19JAN21 X 10-404 DSR-1/19/21DLB 01/19/2021 Ytion Required? Comm 1/20/21 dts 1/20/2021 JLC 1/20/2021 RBDMS HEW 1/27/2020 Plug and Add Perf C-23D PTD: 213-161 Well Name: C-23D CTU Plug & Add Perf API Number: 50-029-20775-04 Current Status: Producing Rig: CTU & Surface Deployed TCP Guns Estimated Start Date: 1/30/2021 Estimated Duration: 3 days Reg.Approval Req’std? N/A Date Reg. Approval Rec’vd: N/A Regulatory Contact: Abbie Barker Permit to Drill Number: 213-161 First Call Engineer: Wyatt Rivard (907) 777-8547 (O) (509) 670-8001 (M) Second Call Engineer: Noel Nocas (907) 777-8449 (O) (907) 947-9533 (M) AFE Number: IOR 296 Current Bottom Hole Pressure: 3310 psi @ 8,800’ TVD 7.3 PPGE | (Average Ivishak BHP) Maximum Expected BHP: 3310 psi @ 8,800’ TVD 7.3 PPGE | (Average Ivishak BHP) Max. Anticipated Surface Pressure: 2430psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP: 2400 psi (Taken on 11/30/2014) Min ID: 2.377” XO at 13055’ MD Max Angle: 98 Deg @ 12695’ Reference Log: BHI RPM Log Dated 12-10-2013 Brief Well Summary: A 2013 natural flow sidetrack into Z2A, C-23D has 301’ of open toe perfs and flowed full time until mid 2020 when GOR became uneconomic. The well was recently cycled but did not cycle well and is ready for next stage of perfs. The goal of this program is to move to next stage of perforations to return well to economic GOR. Objective: Utilize CTU to isolate existing perforations then surface deploy TCP guns with CTU to add new perfs and improve fluid rates. Sundry Procedure (Approval Required to Proceed): Note: The well will be killed and monitored before making up the initial perfs guns. This is generally done during the drift/logging or plug set run. This will provide guidance as to whether the well will be killed by bullheading or circulating bottoms up throughout the job. If pressure is seen immediately after perforating, it will either be killed by bullheading while POOH or circulating bottoms up through the same port that opened to shear the firing head. Coil Tubing 1. MIRU Coiled Tubing Unit and spot ancillary equipment. 2. MU GR/CCL and drift for 3-1/4” CIBP. 3. RIH below target CIBP set depth of ±12,670’ MD 4. Log up, stopping to paint flag. 5. POOH and confirm good data, obtain correction. 6. Bullhead ~220 bbls of 8.4 ppg 1% KCl or 8.5 ppg seawater down the tubing to the formation. a. Wellbore volume = 9400’ X .0152bpf + .0079bpf x 3400’ = 170 bbls 7. Confirm well is dead. Freeze protect tubing as needed. 8. MU 3-1/4” CIBP. and RIH and correct to flag. 9. Contact OE Wyatt Rivard 1(509) 670-800 or Noel Nocas at 1(907) 947-9533 prior to setting plug/perforating for final approval of tie-ins 10. Set plug mid-joint at ±12,670’ MD and test to 1500 psi. POOH. Plug and Add Perf C-23D PTD: 213-161 11. At surface, prepare for deployment of TCP guns. Assure excess fluids available if needed to keep hole full. 12. Confirm well is dead. Bleed any pressure off to returns tank. Kill well w/ 8.4 ppg 1% KCl or 8.5 ppg seawater as needed. Maintain continuous hole fill taking returns to tank until lubricator connection is reestablished. 13. Pickup safety joint and TIW valve and space out before MU guns. Review well control steps with crew prior to breaking lubricator connection and commencing makeup of TCP gun string. Once the safety joint and TIW valve have been spaced out, keep the safety joint/TIW valve readily accessible near the working platform for quick deployment if necessary. 14. Break lubricator connection at QTS and begin makeup of TCP guns per Table 1: C-23D Proposed Ad-Perf Gun Run below. Gun Run # Perf Top Perf Bottom Perf Length 1 ±12144 ±12394 ±250 Total ±250 Table 1: C-23D Proposed Ad-Perf Gun Run 15. RIH and correlate to flag. Contact OE Wyatt Rivard 1(509) 670-8001 or Noel Nocas at 1(907) 947-9533 prior to perforating for final approval of tie ins. 16. Pickup and perforate intervals per Table 1: C-23D Proposed Ad-Perf Gun Run. POOH. a. Note any tubing pressure change in WSR. 17. POOH. Stop at surface to reconfirm well dead and hole full. 18. Review well control steps with crew prior to breaking lubricator connection and commencing breakdown of TCP gun string. 19. RDMO CTU. 20. RTP or FP well. Attachments: 1. As-built Schematic 2. Proposed Schematic 3. Coil Tubing BOPE Schematic 4. Equipment Layout Diagram 5. Standing Orders for Open Hole Well Control during Perf Gun Deployment 6. Tie In Log/Perf Sheet Standing orders flow chart included with this sundry request. *See note above regarding kill methods if pressure observed on surface after perforating. Plug and Add Perf C-23D PTD: 213-161 Wellbore Schematic Plug and Add Perf C-23D PTD: 213-161 Proposed Schematic Plug and Add Perf C-23D PTD: 213-161 Plug and Add Perf C-23D PTD: 213-161 Coiled Tubing BOPs Plug and Add Perf C-23D PTD: 213-161 Equipment Layout Diagram Plug and Add Perf C-23D PTD: 213-161 Standing Orders for Open Hole Well Control during Perf Gun Deployment Plug and Add Perf C-23D PTD: 213-161 C-23D Tie-In Log Plug and Add Perf C-23D PTD: 213-161 Plug and Add Perf C-23D PTD: 213-161 Hilcorp North Slope, LLCHilcorp North Slope, LLCChanges to Approved Work Over Sundry ProcedureDate: January 15, 2021Subject: Changes to Approved Sundry Procedure for Well C-23DSundry #:Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to theAOGCC by the rig workover (RWO) “first call” engineer. AOGCC written approval of the change is required before implementing the change.StepPageDate Procedure ChangeHNSPreparedBy (Initials)HNSApprovedBy (Initials)AOGCC WrittenApproval Received(Person and Date)Approval:Asset Team Operations Manager DatePrepared:First Call Operations Engineer Date