TEXAS · WELLS · UPTON COUNTY · TXL STATE U A5 LEASE · API 42-461-40980 · DISTRICT 6E

TXL State U A5 #503LH

Y

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

Txl State U A5 #503LH (API 42-461-40980) is a horizontal well in Upton County operated by Cog Operating LLC, completed August 2, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued October 16, 2018, permitted to 8,918 ft.

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

Its lease has reported 411K barrels of oil and 953K mcf of gas since August 2019, 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 16, 2018
8,918
total depth, ft
2
permits on file
Oct 16, 2018
last permit issued
Aug 2, 2019
completed
411K
cumulative oil, bbl
953K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 2, 2019
Shut in
—
Plugged
—

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

Surface location

31.649872, -102.162080

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 State U A5 O-9-20792Spraberry (Trend Area)COG Operating LLC1411K953KAug 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 59,643 · prior 12 61,312(-3%)

05K10K202420252026

Oil, barrels lease total

Last 12 months 11,256 · prior 12 8,451(+33%)

05001K1.5K202420252026

Chain of custody

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

  1. 1COG Operating LLCAug 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
845280-98DrillCOG Operating LLCDec 11, 2019Oct 16, 2018Jan 19, 201912,000
845280-99DrillCOG Operating LLCOct 2, 2018Oct 16, 2018Jan 19, 201912,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Aug 2, 2019TXL State U A5 O-9-20792Spraberry (Trend Area)COG Operating LLCProducing8,918

Formation tops

As filed on W-2/G-1. Subsea from 2,878 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,79187
Grayburg3,000-122
San AndresSAN ANDRES - SALTWATER FLOW4,769-1,891
Spraberry8,323-5,445
Devonian——
Ellenburger——
Fusselman——
Strawn——
Wolfcamp——

Perforations

Perforated and open-hole intervals.

FromToType
9,16920,878Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,80317.51,500 S
9.6258,27512.251,020 S
5.520,9458.52,650 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
00Mar 13, 2020Jan 10, 2020Yes

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 State U A642-461-40997

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

Yates2,79583
Grayburg3,000-122
San Andres4,772-1,894
Spraberry7,959-5,081
Wolfcamp9,244-6,366
Strawn—
Devonian—
Ellenburger—

9 TOPS · FIRST 8

TXL State U A342-461-40979

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

Yates2,79286
Grayburg4,066-1,188
San Andres4,769-1,891
Spraberry7,764-4,886
Ellenburger—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

TXL State Y1542-461-42125

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

Yates2,79285
Grayburg4,423-1,546
San Andres4,777-1,900
Spraberry7,744-4,867
Wolfcamp—
Strawn—
Devonian—
Ellenburger—

9 TOPS · FIRST 8

TXL State Y1442-461-42128

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

Yates2,79978
Grayburg4,227-1,350
San Andres4,781-1,904
Spraberry7,760-4,883
Strawn—
Devonian—
Wolfcamp—
Fusselman—

9 TOPS · FIRST 8

TXL State Y1342-461-42127

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

Yates2,80374
Grayburg4,168-1,291
San Andres4,770-1,893
Spraberry7,775-4,898
Ellenburger—
Devonian—
Fusselman—
Wolfcamp—

9 TOPS · FIRST 8

TXL State U A742-461-40977

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

Yates2,772101
Grayburg3,000-127
San Andres4,753-1,880
Spraberry7,927-5,054
Devonian—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

TXL State U A842-461-40978

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

Yates2,772101
Grayburg3,000-127
San Andres4,753-1,880
Spraberry7,927-5,054
Wolfcamp8,654-5,781
Devonian—
Fusselman—
Strawn—

9 TOPS · FIRST 8

TXL State R A442-329-42931

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

Santa Rosa8062,071
Yates2,80869
Seven Rivers3,001-124
Queen3,757-880
Grayburg4,300-1,423
San Andres4,767-1,890
Glorieta5,254-2,377
Clear Fork6,992-4,115

10 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/46140980, documented in the API reference.