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403424136 02 2023-06-06T17:38:47.103-06:00 10633 CRESTONE PEAK RESOURCES OPERATING LLC

1801 CALIFORNIA STREET #2500

DENVER CO 80202 Kate Miller 303 241-6910 Ashley Noonan Sr. Regulatory Analyst 2023-06-06T17:38:47.103-06:00 2023-06-06T17:38:47.01-06:00 IN PROCESS anoonan 2023-06-06T09:03:12.383-06:00 anoonan regulatory@civiresources.com 8.00000 323151 kmiller@civiresources.com anoonan anoonan 2023-06-06T17:38:45.37-06:00 403424136 DR N Y OIL Unplanned Sidetrack SINGLE N Cosslett East 1N-22H-H168 20185 SENE 22 1N 68W 6 1078 WATTENBERG FEL 1716 90750 5181 FNL WELD HORIZONTAL 500 476 FEL FEE 460 FNL 23 FEE 1N 68W 5753 T1N R67W Sec. 19: Lots 1, 2; E/2W/2, SE/4; Sec. 29: NW/4, S/2; T1N R68W Sec. 3: Lot 2, S/2NW/4, SW/4, SE/4; Sec. 10: NW/4; S/2; Sec. 11: NW/4; S/2; Sec. 13: NW/4; S/2; Sec. 14: NW/4; S/2; Sec. 15: NW/4; S/2; Sec. 23: NW/4; S/2; Sec. 25; NW/4; S/2; Sec. 27: NW/4; S/2; Sec. 35: NW/4; S/2. FEL 460 FSL 26 360 1N 68W FEET FEET N N N Y 05 123 51940 01 20160104 ANNULAR PREVENTOR DOUBLE RAM ROTATING HEAD 40.039229 -104.983901 2019-07-24T00:00:00-06:00 1.4 false false false false false false false false false false false false false false FEE 460 FEET The OGDP Order No. 407-3397 approved the expansion of the Cosslett pad and approved the COGCC Form 2A. 188 FEET true false false false false false false false false false false false false susan.sears@crestonepr.com false false false N/A true true Approved The WOGLA 1041WOGLA20-0018 was approved on October 26, 2020. false PDOP false N 10428 7730 26 1N 68W 460 FSL 476 FEL 20185 7730 true 2020-10-26T00:00:00-06:00 true false true false false true 7730 false Cosslett East 22H-H168 482207 false true 403424136 This Form 2 is being submitted for a sidetrack of the wellbore, the below is an account of what occurred prior to sidetracking and the proposed sidetrack procedure approved verbally by COGCC staff (see attached correspondence). 1. While drilling in the lateral section of our Cosslett East 1N-22H-H168 well, we were having difficulty steering the well and were becoming extremely close to drilling across a setback line to the east of the well. As we attempted to correct back to plan, we identified that we would likely drill past the setback line and potentially remain past the setback line for a significant portion of the remaining lateral to be drilled. 2. Total measured depth reached in the wellbore being plugged back: 18,436’ MD 3. Casing set – size(s) and measured depth(s): 13-3/8” 54.5# Conductor Casing, Set at 589’, 9-5/8” 36# Surface Casing, Set at 2,818’ 4. Description of fish in the hole (if any) – including top and bottom measured depths: None 5. Description of proposed plugs: setting measured depths, heights, and cement volumes: None 6. Type of cement to be used for all plugs, including slurry weight (ppg) and yield (cf/sk): None 7. Measured depth of proposed sidetrack kick-off point: 12,450’ MD 8. Proposed objective formation(s) for sidetrack hole: Codell 9. BHL target for sidetrack hole: Same BHL target as original wellbore. Attached is a up to date wellbore diagram. There were no planned changes to BHL therefore no deviated drill plans or well plats are attached. Distance from completed zone of this wellbore to nearest completed zone of an offset well within the same unit permitted or completed in the same formation was measured to the proposed Cosslett East 1M-22H-H168 operated by Crestone Peak Resources Operating LLC in 2D. Distance from the proposed wellbore to nearest existing or proposed wellbore belonging to another operator, including plugged wells was measured to the DA Vert Coslett B Unit 1 (05-123-12595) operated by Vessels Oil & Gas. This distance was determined by the Anticollision report. 403424136 403424136 FORM 2 SUBMITTED 403424136.pdf 403424136 403424594 CORRESPONDENCE Cosslett East 1N-22H-H168 (API 05-123-51940) - Open Hole Sidetrack.pdf 213995 403424136 403424739 OffsetWellEvaluations Data Cosslett East Pad Offset Eval Summary Sheet 3-8-22.xlsx 2023610 403424136 403425335 WELLBORE DIAGRAM Cosslett East 01N-22H-H168_Wellbore Diagram -hz monobore_NIO.pdf 74033 14f77369-97a9-4275-b6da-0e7a362c78bd 403424136 2 Drilling/Completion Operations Anti-collision: Operator will perform an anti-collision evaluation of all active (producing, shut in, or temporarily abandoned) offset wellbores that have the potential of being within 150 feet of a proposed well prior to drilling operations for the proposed well. Notice shall be given to all offset operators prior to drilling false 26631d4d-f083-4a04-bf0c-cf453174537b 403424136 1 Drilling/Completion Operations Alternative Logging Program: One of the first wells drilled on the pad will be logged with openhole resistivity log and gamma-ray log from the kick-off point into the surface casing. All wells on the pad will have a cement bond log with gamma-ray run on production casing (or on intermediate casing if production liner is run) into the surface casing. The horizontal portion of every well will be logged with a measured-while drilling gamma-ray log. The Form 5, Completion Report, for each well on the pad will list all logs run and have those logs attached. The Form 5 for a well without open-hole logs shall state “Alternative Logging Program - No open-hole logs were run” and shall clearly identify the type of log and the well (by API#) in which open-hole logs were run. false 403424136 1ST 8 1 2 5 1 2 20 20185 3138 20185 0 PLANNED P-110 false false false 403424136 CONDUCTOR 17 1 2 13 3 8 54.5 589 920 589 0 0 PLANNED J-55 false false false 403424136 NEW 30 20 52.78 145 200 145 0 0 PLANNED A53B false false false 403424136 SURF 12 1 4 9 5 8 36 2818 900 2818 0 0 PLANNED J-55 false false false 403424136 NIOBRARA NBRR 407-2533 1920 T1N R68W Sec. 22: E/2; Sec. 23: All; Sec. 26: All; Sec. 27: E/2 Thread was being aborted.