WELL · 42-301-36136 · DISTRICT 8

Aftermath West a Unit BS #350H

Y

Loving County · Sandbar (Bone Spring) field · Producing  · Horizontal

Aftermath West A Unit BS #350H (API 42-301-36136) is a horizontal well in Loving County operated by Cog Operating LLC, completed February 20, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 22, 2022, permitted to 11,000 ft.

Completion filings report 9 formation tops, including Delaware, Bell Canyon, Cherry Canyon, Brushy Canyon.

Its lease has reported 237K barrels of oil and 518K mcf of gas since August 2023, last reporting in July 2026.

Operator of record

COG Operating LLC

Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Apr 2026
Latest permitCOG Operating LLCNov 22, 2022
11,000
total depth, ft
2
permits on file
Nov 22, 2022
last permit issued
Feb 20, 2024
completed
237K
cumulative oil, bbl
518K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 20, 2024
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.928222, -103.347617

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Loving County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Aftermath West a Unit BS O-10-60565Sandbar (Bone Spring)COG Operating LLC1237K518KAug 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 115,614 · prior 12 88,448(+31%)

010K20K202420252026

Gas, mcf lease total

Last 12 months 259,044 · prior 12 181,813(+42%)

020K40K60K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1COG Operating LLCFeb 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
885039-98DrillCOG Operating LLCFeb 13, 2024Nov 22, 2022Jun 6, 202311,000
885039-99DrillCOG Operating LLCOct 20, 2022Nov 22, 2022Jun 6, 202310,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-60565————

Formation tops

As filed on W-2/G-1. Subsea from 3,008 ft elevation.Download CSV →

FormationMD ftSubsea
Delaware5,085-2,077
Bell Canyon5,110-2,102
Cherry Canyon6,148-3,140
Brushy Canyon7,537-4,529
Bone Spring8,926-5,918
Bone SpringBONE SPRING 1ST10,116-7,108
Pennsylvanian——
Red Bluff——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
10,42020,427Perforated
10,42020,428Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,26014.75825 S
7.6259,7179.8751,005 S
5.520,5226.751,130 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Dec 2, 2024Sep 17, 2024Yes
00Apr 4, 2024Feb 6, 2024Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Aftermath West a Unit42-301-34908

0.2 KM · COG Operating LLC · Section with this well →

Red Bluff3,900-894
Bell Canyon5,135-2,129
Delaware5,135-2,129
Cherry Canyon6,025-3,019
Brushy Canyon7,560-4,554
Bone Spring8,935-5,929
Wolfcamp11,945-8,939
Pennsylvanian—

10 TOPS · FIRST 8

Afterbuzz East B Unit42-301-34907

0.2 KM · COG Operating LLC · Section with this well →

Red Bluff3,900-893
Bell Canyon5,110-2,103
Delaware5,110-2,103
Cherry Canyon6,000-2,993
Brushy Canyon7,560-4,553
Bone Spring8,939-5,932
Wolfcamp11,958-8,951
Atoka—

10 TOPS · FIRST 8

Goodnight 10/11 B42-301-35802

0.3 KM · Mewbourne Oil Company · Section with this well →

Delaware5,039-2,026
Bell Canyon5,065-2,052
Cherry Canyon6,113-3,100
Brushy Canyon7,489-4,476
Bone Spring8,849-5,836
Bone Spring10,034-7,021
Wolfcamp—
Pennsylvanian—

10 TOPS · FIRST 8

Goodnight 10/11 A42-301-35772

0.3 KM · Mewbourne Oil Company · Section with this well →

Delaware5,037-2,024
Bell Canyon5,063-2,050
Cherry Canyon6,111-3,098
Brushy Canyon7,487-4,474
Bone Spring8,847-5,834
Bone Spring10,032-7,019
Bone Spring10,464-7,451
Wolfcamp—

10 TOPS · FIRST 8

Goodnight 10/11 C42-301-35854

0.3 KM · Mewbourne Oil Company · Section with this well →

Delaware5,0391,974
Bell Canyon5,0651,948
Cherry Canyon6,113900
Brushy Canyon7,489-476
Bone Spring8,849-1,836
Bone Spring10,034-3,021
Bone Spring10,466-3,453
Bone Spring11,625-4,612

10 TOPS · FIRST 8

Goodnight 10/11 D42-301-35855

0.3 KM · Mewbourne Oil Company · Section with this well →

Delaware5,039-2,026
Bell Canyon5,065-2,052
Cherry Canyon6,113-3,100
Brushy Canyon7,489-4,476
Bone Spring8,849-5,836
Bone Spring10,034-7,021
Bone Spring10,466-7,453
Bone Spring11,625-8,612

10 TOPS · FIRST 8

Goodnight 10/11 C42-301-37129

0.4 KM · Mewbourne Oil Company · Section with this well →

Delaware5,106-2,093
Bell Canyon5,143-2,130
Cherry Canyon6,171-3,158
Brushy Canyon7,677-4,664
Bone Spring8,969-5,956
Bone Spring10,115-7,102
Pennsylvanian—
Red Bluff—

10 TOPS · FIRST 8

Goodnight 10/11 D42-301-37130

0.4 KM · Mewbourne Oil Company · Section with this well →

Delaware5,106-2,093
Bell Canyon5,143-2,130
Cherry Canyon6,171-3,158
Brushy Canyon7,677-4,664
Bone Spring8,969-5,956
Bone Spring10,115-7,102
Pennsylvanian—
Red Bluff—

10 TOPS · FIRST 8

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

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