WELL · 42-461-42897 · DISTRICT 7

Eagle Pass B2 #5903LH

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

Eagle Pass B2 #5903LH (API 42-461-42897) is a horizontal well in Upton County operated by Cog Operating LLC, completed October 9, 2025 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 1, 2024, permitted to 12,000 ft.

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

Its lease has reported 100K barrels of oil and 93K mcf of gas since March 2025, last reporting in July 2026.

Operator of record

COG Operating LLC

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 2, 2026
Permits on file
4,568
Phone
(432) 683-7443

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Apr 2026
Latest permitCOG Operating LLCOct 1, 2024
12,000
total depth, ft
1
permits on file
Oct 1, 2024
last permit issued
Oct 9, 2025
completed
100K
cumulative oil, bbl
93K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2025 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 9, 2025
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

31.491020, -102.065861

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 B2 O-9-23097Spraberry (Trend Area)COG Operating LLC1100K93KMar 2025 – Jul 2026

Oil, barrels lease total

Last 12 months 100,199 · prior 12 0

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 93,038 · 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
901878-99DrillCOG Operating LLCAug 8, 2024Oct 1, 2024Oct 16, 202412,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-23097————

Formation tops

As filed on W-2/G-1. Subsea from 2,790 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,604186
Grayburg4,690-1,900
San AndresSAN ANDRES - SALTWATER FLOW4,765-1,975
Spraberry7,600-4,810
Devonian——
Ellenburger——
Fusselman——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,22219,554Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37552517.5575 S
9.6256,18512.25555 S
5.519,6428.752,175 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 16, 2025Nov 26, 2025—
00Jul 17, 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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Eagle Pass B842-461-42902

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

Yates2,608182
Grayburg4,698-1,908
San Andres5,775-2,985
Spraberry7,591-4,801
Wolfcamp9,058-6,268
Devonian—
Ellenburger—
Strawn—

9 TOPS · FIRST 8

Eagle Pass B742-461-42904

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

Yates2,608182
Grayburg4,698-1,908
San Andres5,770-2,980
Spraberry7,591-4,801
Ellenburger—
Devonian—
Wolfcamp—
Strawn—

9 TOPS · FIRST 8

Eagle Pass B142-461-42896

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

Yates2,603187
Grayburg4,689-1,899
San Andres4,767-1,977
Spraberry7,593-4,803
Wolfcamp9,044-6,254
Fusselman—
Ellenburger—
Devonian—

9 TOPS · FIRST 8

Eagle Pass B342-461-42898

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

Yates2,605185
Grayburg4,692-1,902
San Andres4,761-1,971
Spraberry7,589-4,799
Wolfcamp9,046-6,256
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

Eagle Pass B642-461-42901

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

Yates2,607183
Grayburg4,697-1,907
San Andres4,757-1,967
Spraberry7,592-4,802
Wolfcamp9,057-6,267
Devonian—
Strawn—
Ellenburger—

9 TOPS · FIRST 8

Eagle Pass B442-461-42899

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

Yates2,606184
Grayburg4,693-1,903
San Andres4,759-1,969
Spraberry7,588-4,798
Ellenburger—
Devonian—
Fusselman—
Wolfcamp—

9 TOPS · FIRST 8

Eagle Pass B542-461-42900

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

Yates2,607183
Grayburg4,696-1,906
San Andres4,755-1,965
Spraberry7,592-4,802
Wolfcamp9,052-6,262
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

Neal Ranch 57 Unit 32H42-461-39224

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

Yates2,587199
Grayburg4,685-1,899
San Andres4,760-1,974
Spraberry7,580-4,794
Wolfcamp9,131-6,345
Ellenburger—
Strawn—
Fusselman—

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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