WELL · 42-461-42922 · DISTRICT 7

Eagle Pass C8 #5402JH

Y

Upton County · Spraberry (Trend Area) field · Producing  · Horizontal

Eagle Pass C8 #5402JH (API 42-461-42922) is a horizontal well in Upton County operated by Cog Operating LLC, completed September 30, 2025 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 11, 2024, permitted to 12,000 ft.

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

Its lease has reported 141K barrels of oil and 122K mcf of gas since December 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 11, 2024
12,000
total depth, ft
1
permits on file
Oct 11, 2024
last permit issued
Sep 30, 2025
completed
141K
cumulative oil, bbl
122K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2024 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 30, 2025
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.493230, -102.058364

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
Eagle Pass C8 O-9-23093Spraberry (Trend Area)COG Operating LLC1141K122KDec 2024 – Jul 2026

Oil, barrels lease total

Last 12 months 140,789 · prior 12 0

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 122,060 · prior 12 0

010K20K30K202420252026

Chain of custody

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

  1. 1COG Operating LLCOct 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
902337-99DrillCOG Operating LLCAug 28, 2024Oct 11, 2024Oct 25, 202412,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-23093————

Formation tops

As filed on W-2/G-1. Subsea from 2,787 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,601186
Grayburg4,722-1,935
San AndresSAN ANDRES - SALTWATER FLOW4,799-2,012
Spraberry7,577-4,790
Devonian——
Ellenburger——
Fusselman——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
8,96824,570Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37552717.5575 S
9.6256,20012.25490 S
5.524,6788.53,800 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, 2025Nov 25, 2025—
00Jul 8, 2025Jun 16, 2025Yes

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 →

Eagle Pass C742-461-42921

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

Yates2,601186
Grayburg4,713-1,926
San Andres4,793-2,006
Spraberry7,576-4,789
Ellenburger—
Devonian—
Wolfcamp—
Strawn—

9 TOPS · FIRST 8

Eagle Pass C642-461-42920

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

Yates2,602185
Grayburg4,711-1,924
San Andres4,791-2,004
Spraberry7,576-4,789
Strawn—
Devonian—
Wolfcamp—
Fusselman—

9 TOPS · FIRST 8

Eagle Pass C542-461-42919

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

Yates2,602185
Grayburg4,706-1,919
San Andres4,786-1,999
Spraberry7,577-4,790
Wolfcamp9,076-6,289
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

Eagle Pass C442-461-42918

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

Yates2,603184
Grayburg4,702-1,915
San Andres4,782-1,995
Spraberry7,575-4,788
Fusselman—
Devonian—
Ellenburger—
Strawn—

9 TOPS · FIRST 8

Eagle Pass C342-461-42917

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

Yates2,605182
Grayburg4,699-1,912
San Andres4,781-1,994
Spraberry7,577-4,790
Wolfcamp9,070-6,283
Fusselman—
Ellenburger—
Devonian—

9 TOPS · FIRST 8

Eagle Pass C242-461-42916

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

Yates2,605182
Grayburg4,699-1,912
San Andres4,786-1,999
Spraberry7,582-4,795
Devonian—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Eagle Pass C142-461-42903

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

Yates2,606181
Grayburg4,697-1,910
San Andres4,789-2,002
Spraberry7,587-4,800
Ellenburger—
Devonian—
Wolfcamp—
Strawn—

9 TOPS · FIRST 8

Neal Ranch '56'42-461-33856

0.2 KM · Arco Permian · Section with this well →

Clear Fork6,057-3,270
Spraberry7,545-4,758
Dean8,843-6,056
Wolfcamp9,080-6,293

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/46142922, documented in the API reference.