TEXAS · WELLS · UPTON COUNTY · TXL HOLZGRAF Y10 LEASE · API 42-461-42117 · DISTRICT 6E

TXL Holzgraf Y10 #2604LH

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

Txl Holzgraf Y10 #2604LH (API 42-461-42117) is a horizontal well in Upton County operated by Cog Operating LLC, completed August 9, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 26, 2022, permitted to 8,966 ft.

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

Its lease has reported 274K barrels of oil and 353K mcf of gas since January 2023, 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 LLCApr 26, 2022
8,966
total depth, ft
1
permits on file
Apr 26, 2022
last permit issued
Aug 9, 2023
completed
274K
cumulative oil, bbl
353K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 9, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

31.643517, -102.174465

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
TXL Holzgraf Y10 O-9-21975Pegasus (Consolidated)COG Operating LLC1274K353KJan 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 47,353 · prior 12 70,049(-32%)

020K40K202420252026

Gas, mcf lease total

Last 12 months 97,709 · prior 12 75,310(+30%)

010K20K30K202420252026

Chain of custody

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

  1. 1COG Operating LLCAug 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
879293-99DrillCOG Operating LLCApr 20, 2022Apr 26, 2022Jul 29, 202210,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Aug 9, 2023TXL Holzgraf Y10 O-9-21975Pegasus (Consolidated)COG Operating LLCProducing8,966

Formation tops

As filed on W-2/G-1. Subsea from 2,876 ft elevation.Download CSV →

FormationMD ftSubsea
Yates1,7061,170
Yates2,81363
Grayburg4,194-1,318
Grayburg4,199-1,323
San AndresSAN ANDRES - SALTWATER FLOW4,791-1,915
San AndresSAN ANDRES - SALTWATER FLOW4,805-1,929
Spraberry7,759-4,883
Spraberry7,775-4,899
Devonian——
Ellenburger——
Fusselman——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,11819,300Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37546317.5500 S
9.6258,26812.252,410 S
5.519,4078.52,565 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 19, 2023Nov 28, 2023Yes
00Mar 20, 2023Mar 9, 2023Yes

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 →

TXL Holzgraf Y942-461-42116

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

Yates8092,067
Grayburg4,192-1,316
San Andres4,769-1,893
Spraberry7,751-4,875
Ellenburger—
Devonian—
Wolfcamp—
Strawn—

9 TOPS · FIRST 8

TXL Holzgraf Y742-461-42114

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

Yates2,81759
Grayburg4,193-1,317
San Andres4,767-1,891
Spraberry7,729-4,853
Fusselman—
Devonian—
Ellenburger—
Strawn—

9 TOPS · FIRST 8

TXL Holzgraf Y842-461-42115

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

Yates1,7291,147
Grayburg4,193-1,317
San Andres4,770-1,894
Spraberry7,750-4,874
Wolfcamp9,189-6,313
Devonian—
Strawn—
Fusselman—

9 TOPS · FIRST 8

TXL Holzgraf Y242-461-42095

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

Yates2,81661
Grayburg4,192-1,315
San Andres4,773-1,896
Spraberry7,741-4,864
Strawn—
Fusselman—
Ellenburger—
Devonian—

9 TOPS · FIRST 8

TXL Holzgraf Y642-461-42099

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

Yates1,7161,161
Grayburg4,193-1,316
San Andres4,768-1,891
Spraberry7,729-4,852
Devonian—
Ellenburger—
Fusselman—
Strawn—

9 TOPS · FIRST 8

TXL Holzgraf Y442-461-42097

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

Yates2,715162
Grayburg4,192-1,315
San Andres4,778-1,901
Spraberry7,742-4,865
Wolfcamp—
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

TXL Holzgraf Y342-461-42096

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

Yates2,81463
Grayburg4,194-1,317
San Andres4,788-1,911
Spraberry7,757-4,880
Wolfcamp—
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

TXL Holzgraf Y142-461-42094

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

Yates2,81364
Grayburg4,194-1,317
San Andres4,791-1,914
Spraberry7,759-4,882
Ellenburger—
Wolfcamp—
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

Developers: this page as JSON is GET /v1/data/wells/46142117, documented in the API reference.