WELL · 42-389-36336 · DISTRICT 8

Left Hand Bull Unit #8901H

N

Reeves County  · Horizontal

Left Hand Bull Unit #8901H (API 42-389-36336) is a permitted horizontal well in Reeves County filed by Cog Operating LLC; no completion report is on file yet.

The RRC has issued 2 drilling permits (amended twice) between 2017 and 2020, permitted to 11,000 ft.

Completion filings report 8 formation tops, including Delaware, Castile, Bell Canyon, Cherry Canyon.

Its lease has reported 283K barrels of oil and 327K mcf of gas since April 2022, 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 schedulenone
Production reportsScout Energy Management LLCthrough Apr 2026
Latest permitCOG Operating LLCMar 11, 2020
11,000
total depth, ft
4
permits on file
Mar 11, 2020
last permit issued
—
completed
283K
cumulative oil, bbl
327K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2022 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

Surface location

31.068222, -103.466992

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Reeves 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
Left Hand Bull Unit O-10-57585Hoefs T-K (Wolfcamp)Scout Energy Management LLC1283K327KApr 2022 – Jul 2026

Oil, barrels lease total

Last 12 months 43,843 · prior 12 39,279(+12%)

05K10K202420252026

Gas, mcf lease total

Last 12 months 106,663 · prior 12 48,027(+122%)

010K20K202420252026

Chain of custody

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

  1. 1COG Operating LLCApr 2022 → Feb 2025
  2. 2Scout Energy Management LLCMar 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
862449-97DrillCOG Operating LLCMar 2, 2021Mar 11, 2020Aug 1, 202111,000
862449-98DrillCOG Operating LLCApr 6, 2020Mar 11, 2020—11,000
862449-99DrillCOG Operating LLCMar 2, 2020Mar 11, 2020—11,000
830732-99DrillCOG Operating LLCSep 7, 2017Nov 1, 2017—10,700

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-57585————

Formation tops

As filed on W-2/G-1. Subsea from 2,894 ft elevation.Download CSV →

FormationMD ftSubsea
DelawareFORD / DELAWARE2,500394
CastileCASTILLE2,80094
Delaware5,214-2,320
Bell Canyon5,288-2,394
Cherry Canyon6,069-3,175
DelawareDELAWARE CONSOLIDATED GAS6,500-3,606
Bone Spring8,012-5,118
Wolfcamp10,204-7,310
Pennsylvanian——
Permian (undifferentiated)PERMIAN (UNDEFINED)——

Perforations

Perforated and open-hole intervals.

FromToType
10,49020,527Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,86214.751,074 S
7.62510,3949.875750 S
7.62510,3948.751,715 S
5.520,6176.751,450 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
00Oct 7, 2022Jun 13, 2022Yes

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 →

Williwaw Unit42-389-39039

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

Delaware2,500371
Castile2,80071
Delaware5,219-2,348
Bell Canyon5,269-2,398
Cherry Canyon6,011-3,140
Delaware6,500-3,629
Bone Spring7,973-5,102
Wolfcamp10,278-7,407

10 TOPS · FIRST 8

Rain Shadow Unit42-389-38994

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

Delaware2,500371
Castile2,80071
Delaware5,214-2,343
Bell Canyon5,252-2,381
Cherry Canyon6,004-3,133
Delaware6,500-3,629
Bone Spring7,981-5,110
Wolfcamp10,262-7,391

10 TOPS · FIRST 8

Oppenheimer 18842-389-35764

1.7 KM · OXY USA WTP LP · Section with this well →

Permian (undifferentiated)8342,036
Castile8342,036
Delaware5,206-2,336
Bell Canyon5,206-2,336
Delaware5,254-2,384
Delaware5,254-2,384
Cherry Canyon6,064-3,194
Bone Spring8,056-5,186

10 TOPS · FIRST 8

Oppenheimer 18842-389-35766

1.7 KM · OXY USA WTP LP · Section with this well →

Castile8322,038
Permian (undifferentiated)8322,038
Bell Canyon5,211-2,341
Delaware5,211-2,341
Delaware5,254-2,384
Delaware5,319-2,449
Cherry Canyon6,063-3,193
Bone Spring7,975-5,105

10 TOPS · FIRST 8

Little Big Chief Unit42-389-38134

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

Delaware2,500423
Castile2,800123
Delaware5,247-2,324
Bell Canyon5,287-2,364
Cherry Canyon6,070-3,147
Delaware6,500-3,577
Bone Spring7,995-5,072
Wolfcamp10,177-7,254

10 TOPS · FIRST 8

Oppenheimer 18842-389-36479

1.8 KM · OXY USA WTP LP · Section with this well →

Castile8322,036
Permian (undifferentiated)8322,036
Delaware5,204-2,336
Bell Canyon5,204-2,336
Delaware5,253-2,385
Delaware5,270-2,402
Cherry Canyon6,063-3,195
Bone Spring8,052-5,184

10 TOPS · FIRST 8

Powderhorn Unit42-389-39709

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

Delaware2,500401
Castile2,500401
Delaware5,216-2,315
Bell Canyon5,284-2,383
Delaware6,000-3,099
Cherry Canyon6,057-3,156
Bone Spring7,820-4,919
Wolfcamp10,149-7,248

10 TOPS · FIRST 8

Powderhorn Unit42-389-39714

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

Castile2,500405
Delaware2,500405
Delaware5,221-2,316
Bell Canyon5,289-2,384
Delaware6,000-3,095
Cherry Canyon6,056-3,151
Bone Spring8,740-5,835
Wolfcamp10,090-7,185

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/38936336, documented in the API reference.