WELL · 42-461-42586 · DISTRICT 7

Sinclair 57 H5 #604LH

Y

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

Sinclair 57 H5 #604LH (API 42-461-42586) is a horizontal well in Upton County operated by Cog Operating LLC, completed July 27, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued October 5, 2023, permitted to 12,000 ft.

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

Its lease has reported 237K barrels of oil and 493K mcf of gas since January 2024, 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 LLCOct 5, 2023
12,000
total depth, ft
2
permits on file
Oct 5, 2023
last permit issued
Jul 27, 2024
completed
237K
cumulative oil, bbl
493K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2024 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 27, 2024
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.595277, -102.121949

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Sinclair 57 H5 O-9-22657Pegasus (Consolidated)COG Operating LLC1237K493KJan 2024 – Jul 2026

Oil, barrels lease total

Last 12 months 60,678 · prior 12 176,151(-66%)

020K40K202420252026

Gas, mcf lease total

Last 12 months 241,046 · prior 12 251,715(-4%)

020K40K202420252026

Chain of custody

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

  1. 1COG Operating LLCAug 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
894164-98DrillCOG Operating LLCOct 27, 2025Oct 5, 2023Nov 2, 20238,878
894164-99DrillCOG Operating LLCSep 28, 2023Oct 5, 2023Nov 2, 202312,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-22657————

Formation tops

As filed on W-2/G-1. Subsea from 2,844 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,694150
Grayburg4,741-1,897
San AndresSAN ANDRES - SALTWATER FLOW4,801-1,957
Spraberry6,882-4,038
Spraberry7,692-4,848
Devonian——
Ellenburger——
Fusselman——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,28219,687Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,02917.5820 S
9.6258,24512.251,000 S
5.519,7828.52,890 S
5.519,7828.752,890 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 12, 2025Dec 16, 2024—
00Jul 31, 2024Jul 9, 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 →

Sinclair 57 H1142-461-42587

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

Yates2,696148
Grayburg4,747-1,903
San Andres4,806-1,962
Spraberry6,881-4,037
Wolfcamp9,113-6,269
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-42577

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

Yates2,695149
Grayburg4,742-1,898
San Andres4,799-1,955
Spraberry6,883-4,039
Ellenburger—
Strawn—
Wolfcamp—
Fusselman—

9 TOPS · FIRST 8

Sinclair 57 H442-461-42585

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

Yates2,695149
Grayburg4,745-1,901
San Andres4,802-1,958
Spraberry6,882-4,038
Wolfcamp—
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

Sinclair 57 H342-461-42584

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

Yates2,696148
Grayburg4,748-1,904
San Andres4,807-1,963
Spraberry6,880-4,036
Ellenburger—
Devonian—
Fusselman—
Wolfcamp—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-42576

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

Yates2,695149
Grayburg4,745-1,901
San Andres4,802-1,958
Spraberry6,882-4,038
Devonian—
Ellenburger—
Fusselman—
Strawn—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-42575

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

Yates2,69649
Grayburg4,748-2,003
San Andres4,807-2,062
Spraberry6,882-4,137
Fusselman—
Devonian—
Strawn—
Wolfcamp—

9 TOPS · FIRST 8

Sinclair 57 H1042-461-42583

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

Yates2,710135
Grayburg4,760-1,915
San Andres4,815-1,970
Spraberry6,888-4,043
Wolfcamp9,126-6,281
Ellenburger—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Sinclair 57 H242-461-42581

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

Yates2,710135
Grayburg4,761-1,916
San Andres4,817-1,972
Spraberry6,887-4,042
Fusselman—
Wolfcamp—
Strawn—
Devonian—

9 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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