WELL · 42-301-34908 · DISTRICT 8

Aftermath West a Unit #301H

Y

Loving County · Phantom (Wolfcamp) field · Producing  · Horizontal

Aftermath West A Unit #301H (API 42-301-34908) is a horizontal well in Loving County operated by Cog Operating LLC, completed December 5, 2020 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued December 31, 2019, permitted to 12,400 ft.

Completion filings report 10 formation tops, including Red Bluff, Bell Canyon, Delaware, Cherry Canyon.

Its lease has reported 515K barrels of oil and 806K mcf of gas since December 2020, 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 LLCDec 31, 2019
12,400
total depth, ft
2
permits on file
Dec 31, 2019
last permit issued
Dec 5, 2020
completed
515K
cumulative oil, bbl
806K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2020 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 5, 2020
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.927691, -103.349583

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 O-10-55637Phantom (Wolfcamp)COG Operating LLC1515K806KDec 2020 – Jul 2026

Oil, barrels lease total

Last 12 months 32,549 · prior 12 39,561(-18%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 9,295 · prior 12 78,348(-88%)

05K10K15K202420252026

Chain of custody

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

  1. 1COG Operating LLCDec 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
859824-98DrillCOG Operating LLCJan 6, 2020Dec 31, 2019—12,400
859824-99DrillCOG Operating LLCDec 10, 2019Dec 31, 2019Jan 17, 202012,400

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-55637————

Formation tops

As filed on W-2/G-1. Subsea from 3,006 ft elevation.Download CSV →

FormationMD ftSubsea
Red Bluff3,900-894
Bell Canyon5,135-2,129
Delaware5,135-2,129
Cherry Canyon6,025-3,019
Brushy Canyon7,560-4,554
Bone SpringBONE SPRINGS8,935-5,929
Wolfcamp11,945-8,939
AtokaATOKA - HIGH PRESSURE——
Pennsylvanian——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
12,28522,265Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,08214.75719 S
7.6258,9999.875565 S
7.62511,8438.75720 S
5.522,4136.751,400 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
00Apr 29, 2021Apr 1, 2021Yes

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 →

Afterbuzz East B Unit42-301-34907

0.0 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

Aftermath West a Unit BS42-301-36136

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

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 Spring10,116-7,108
Pennsylvanian—
Wolfcamp—

10 TOPS · FIRST 8

Goodnight 10/11 B42-301-35802

0.5 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
Pennsylvanian—
Red Bluff—

10 TOPS · FIRST 8

Goodnight 10/11 A42-301-35772

0.5 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
Bone Spring—

10 TOPS · FIRST 8

Goodnight 10/11 C42-301-35854

0.5 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

0.5 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

0.5 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

0.5 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

Developers: this page as JSON is GET /v1/data/wells/30134908, documented in the API reference.