WELL · 42-461-41612 · DISTRICT 7

Pegasus Spraberry Unit #4901MH

Y

Upton County · Pegasus (Consolidated) field · Producing  · Horizontal

Pegasus Spraberry Unit #4901MH (API 42-461-41612) is a horizontal well in Upton County operated by Cog Operating LLC, completed June 22, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 16, 2020, permitted to 12,000 ft.

Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.

Its lease has reported 12.2M barrels of oil and 20.4M mcf of gas since May 2010, last reporting in July 2026. The lease carries 97 wells, so these are lease totals, not this well alone.

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 16, 2020
12,000
total depth, ft
2
permits on file
Nov 16, 2020
last permit issued
Jun 22, 2022
completed
12.2M
cumulative oil, bbl
20.4M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 22, 2022
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.591654, -102.146348

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Upton 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; they carry 97 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Pegasus Spraberry Unit O-9-17147Pegasus (Consolidated)COG Operating LLC9712.2M20.4MMay 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 1,476,452 · prior 12 2,808,942(-47%)

0200K400K600K202420252026

Gas, mcf lease total

Last 12 months 4,272,339 · prior 12 4,462,482(-4%)

0200K400K600K202420252026

Chain of custody

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

  1. 1COG Operating LLCMay 2010 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
866032-98DrillCOG Operating LLCSep 19, 2022Nov 16, 2020May 10, 202112,000
866032-99DrillCOG Operating LLCNov 10, 2020Nov 16, 2020May 10, 202112,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-17147————

Formation tops

As filed on W-2/G-1. Subsea from 2,857 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,717140
Grayburg4,078-1,221
San AndresSAN ANDRES - SALTWATER FLOW4,816-1,959
Spraberry7,665-4,808
Devonian——
Ellenburger——
Fusselman——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
8,35918,385Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37550817.5550 S
9.6257,52812.252,035 S
5.518,4538.52,610 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 4, 2022Aug 31, 2022Yes
00Mar 25, 2022Feb 22, 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 →

Virgil Powell B342-461-41605

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

Yates2,717140
Grayburg4,080-1,223
San Andres4,814-1,957
Spraberry7,675-4,818
Wolfcamp—
Devonian—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

Fraser TXL B442-461-41630

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

Yates2,717140
Grayburg4,089-1,232
San Andres4,817-1,960
Spraberry7,664-4,807
Wolfcamp—
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

Fraser TXL B542-461-41629

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

Yates2,717140
Grayburg4,103-1,246
San Andres4,818-1,961
Spraberry7,666-4,809
Wolfcamp9,087-6,230
Ellenburger—
Devonian—
Fusselman—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-41617

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

Yates2,720136
Grayburg4,166-1,310
San Andres4,826-1,970
Spraberry7,673-4,817
Ellenburger—
Devonian—
Fusselman—
Strawn—

9 TOPS · FIRST 8

Fraser TXL B642-461-41623

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

Yates2,716140
Grayburg4,174-1,318
San Andres4,819-1,963
Spraberry7,671-4,815
Devonian—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Fraser TXL B742-461-41627

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

Yates2,719137
Grayburg4,212-1,356
San Andres4,820-1,964
Spraberry7,683-4,827
Wolfcamp9,099-6,243
Devonian—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Carbon 12-13 Unit 242-461-41699

0.4 KM · Endeavor Energy Resources L.P. · Section with this well →

Yates2,718137
Seven Rivers3,134-279
Queen3,996-1,141
Grayburg4,750-1,895
San Andres5,313-2,458
Glorieta6,038-3,183
Clear Fork6,893-4,038
Spraberry7,689-4,834

14 TOPS · FIRST 8

Carbon 12-13 Unit 242-461-41701

0.4 KM · Endeavor Energy Resources L.P. · Section with this well →

Yates2,721134
Seven Rivers3,133-278
Queen3,996-1,141
Grayburg4,754-1,899
San Andres5,311-2,456
Glorieta6,037-3,182
Clear Fork6,890-4,035
Spraberry7,687-4,832

15 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/46141612, documented in the API reference.