<_x0034_04301480>

404301480 02 2025-08-04T11:06:55.193-06:00 69175 PDC ENERGY INC

1099 18TH STREET SUITE 1500

DENVER CO 80202 Patricia Minerich 303 228-4000 Kim Bauer Regulatory Analyst II 2025-08-04T11:06:55.193-06:00 2025-08-04T11:06:55.067-06:00 IN PROCESS kbauer 2025-07-31T11:51:05.037-06:00 kbauer DenverRegulatory@chevron.com 9.00000 487264 RBUDevPermitting@chevron.com Returned to draft per operator's request. kbauer kbauer 2025-08-04T11:06:44.333-06:00 2 404301480 DR N Y OIL UNPLANNED SIDETRACK SINGLE CAPITOL 07N 16942 SESW 36 5N 66W 6 2355 WATTENBERG FWL 227 90750 4664 FSL WELD HORIZONTAL 2073 1982 FWL STATE 200 FSL CO 80/5622 S 36 FEE 5N 66W 80 Township 5 North, Range 66 West, 6th P.M. Section 36: NWNW and SENW Weld County, Colorado FWL 842 FNL 25 311 5N 66W FEET FEET N N N Y 05 123 53063 01 20240101 ANNULAR PREVENTOR DOUBLE RAM ROTATING HEAD 40.349063 -104.726646 2025-06-20T00:00:00-06:00 1.6 false false false false false false false false false false false false false false FEE 200 FEET 37 FEET true false false false false false false false false false false false RBU-WBI@chevron.com false false false N/A true true Approved 1041WOGLA23-0069 Approved on 5/2/2024 false PDOP false N 7392 6985 25 5N 66W 842 FNL 1982 FWL 16942 6985 true 2024-05-02T00:00:00-06:00 true true false false false true 6985 true 210200012 Raton 486284 false true 404301480 While drilling ahead at 9,484’ MD a loss of approximately 1,000 psi was observed. The decision was made to TOH fearing that a twist may have occurred. Once the BHA was at surface the twist was confirmed to have occurred in the Storm vibration reduction tool. The exact reason for the twist off is unknown as drilling parameters at the time of the twist off were within operational limitations. An attempt to fish the BHA was made resulting in losing part of the fishing BHA. Bakers 7” rotary steerable assembly from 9,484’ MD to 9,420.38’ MD and part of a Weatherford fishing assembly from 9,420.38’ MD to 9,403.62’ MD. The sidetrack well will be drilled in the same Niobrara formation. This will be an open hole sidetrack in the lateral. No cement plugs will be used to abandon the current wellbore. TPZ for sidetrack will be the same as the originally permitted wellbore. KOP is planned at approximately 8,985' MD. The WBD reflects the planned KOP; actual KOP will be submitted on the form 5. PDC Energy Inc was granted approval to sidetrack on 7/31/2025 by Diana McCoy. Operator shall isolate both the Fox Hills and UPIR/Pawnee Aquifers with surface casing from hydrocarbon bearing zones and exposure to oil-based drilling fluid. The nearest well in the same formation is located on the same pad, the CAPITOL 08N operated by PDC Energy INC. Measured in 2D. The distance to another wellbore belonging to an outside operator is the ISHIGURO 2 (05-123-12900) Operated by Noble Energy INC, status PA, 37'. No 408.u is required, well has been plugged and abandoned. The distance was calculated using the anti-collision summary. Wells within 150': ANDERSON-COOMBS 1 (05-123-11649) status PA, 38', operated by Noble Energy INC, no 408.u is required, well has been plugged and abandoned. GREEN 1 (05-123-11874) status PA, 57' operated by PDC Energy INC, no 408.u is required, well has been plugged and abandoned. ANDERSON-COOMBS 2 (05-123-12848) status PA, 66' operated by Noble Energy INC, no 408.u is required, well has been plugged and abandoned. BROWN 1 (05-123-12689) status PA, 68' operated by Noble Energy INC, no 408.u is required, well has been plugged and abandoned. 404301480 404301480 FORM 2 SUBMITTED 404301480.pdf 404301480 404301595 OffsetWellEvaluations Data LF@7169832|404301595 53011 404301480 404301675 WELL LOCATION PLAT LF@7169833|404301675 275585 404301480 404301680 CORRESPONDENCE LF@7169836|404301680 178016 404301480 404303989 DIRECTIONAL DATA Plan - CAPITOL 07N ST.xlsm 41156 404301480 404303998 DEVIATED DRILLING PLAN CAPITOL 07N ST01 (Rev-A.0) Well Plan_AC Summary.pdf 9299349 404301480 404303999 WELLBORE DIAGRAM Capitol 07N Wellbore Diagram.pdf 179398 9c32bfb3-fa95-4e40-b696-05da6ceaf90a 404301480 4 Drilling/Completion Operations One of the first wells drilled on the pad will be logged with Cased hole Pulsed Neutron Log with Gamma Ray Log from 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 in that well and have those logs attached. The Form 5 for each well shall clearly state “Open-hole logging exception - 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 268e26a3-ca4f-4642-8225-b8e48c5cf831 404301480 3 Drilling/Completion Operations if a skid is performed for the subject well, then the only required BOPE tests are for the BOPE connection bonnet seal breaks, as long as a full BOPE test was performed at the beginning of the pad, and as long as all necessary BOPE tests are completed at least every 30 days during the pad operations. false 0c3a3134-e2d9-4332-aff3-ed39870b6a64 404301480 1 Drilling/Completion Operations Operator will perform anti-collision evaluation of all active (producing, shut-in, or temporarily abandoned) offset wellbores that have the potential of being within 150' of the proposed well prior to drilling operations. false d493b62b-a19a-4458-9040-a4923d9c452d 404301480 2 Drilling/Completion Operations During and Post stimulation: Operator will comply with the COGCC Policy for Bradenhead Monitoring During Hydraulic Fracturing Treatments in the Greater Wattenberg Area dated 5/29/12. false 404301480 1ST 8 1 2 5 1 2 17 16942 1973 16942 0 PLANNED P-110 false false false 404301480 CONDUCTOR 26 16 36.95 80 175 80 0 0 PLANNED A-53B false false false 404301480 SURF 13 1 2 9 5 8 36 1500 523 1500 0 0 PLANNED J-55 false false false 404301480 NIOBRARA NBRR 407-3703 2260 Township 4 North, Range 65 West, 6th P.M. Section 6: NW¼, Township 4 North, Range 66 West, 6th P.M. Section 1:NE¼; E½E½E½NW¼, Township 5 North, Range 66 West, 6th P.M. Section 25 & 36: All, Township 5 North, Range 65 West, 6th P.M. Section 30 & 31: W½ Thread was being aborted.