WELL · 42-461-40689 · DISTRICT 7

Windham TXL B8 #3007SH

Y

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

Windham Txl B8 #3007SH (API 42-461-40689) is a horizontal well in Upton County operated by Cog Operating LLC, completed July 24, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 19, 2017, permitted to 11,000 ft.

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

Its lease has reported 425K barrels of oil and 1.39M mcf of gas since July 2018, 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 19, 2017
11,000
total depth, ft
1
permits on file
Oct 19, 2017
last permit issued
Jul 24, 2018
completed
425K
cumulative oil, bbl
1.39M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 24, 2018
Shut in
—
Plugged
—

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

Surface location

31.632050, -102.095467

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
Windham TXL B8 O-9-20004Pegasus (Consolidated)COG Operating LLC1425K1.39MJul 2018 – Jul 2026

Gas, mcf lease total

Last 12 months 188,946 · prior 12 43,515(+334%)

010K20K30K202420252026

Oil, barrels lease total

Last 12 months 11,717 · prior 12 12,011(-2%)

02K4K202420252026

Chain of custody

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

  1. 1COG Operating LLCJul 2018 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
831654-99DrillCOG Operating LLCOct 4, 2017Oct 19, 2017Nov 17, 201711,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-20004————

Formation tops

As filed on W-2/G-1. Subsea from 2,849 ft elevation.Download CSV →

FormationMD ftSubsea
Yates9051,944
Grayburg1,2001,649
San AndresSAN ANDRES - SALTWATER FLOW4,769-1,920
Spraberry8,670-5,821
Wolfcamp9,664-6,815
Devonian——
Ellenburger——
Fusselman——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
9,12619,501Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37548017.5580 S
9.6258,08012.25560 S
5.519,6048.52,010 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
00Oct 15, 2018Sep 6, 2018Yes

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 →

Windham B942-461-40690

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

Yates9051,944
Grayburg1,6621,187
San Andres4,755-1,906
Spraberry8,667-5,818
Wolfcamp9,652-6,803
Ellenburger—
Strawn—
Devonian—

9 TOPS · FIRST 8

Windham B1042-461-40692

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

Yates9031,946
Grayburg2,886-37
San Andres4,769-1,920
Spraberry8,668-5,819
Wolfcamp9,664-6,815
Ellenburger—
Devonian—
Fusselman—

9 TOPS · FIRST 8

Windham TXL R2242-461-41114

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

Yates2,709144
Grayburg3,000-147
San Andres4,775-1,922
Spraberry8,662-5,809
Wolfcamp9,437-6,584
Ellenburger—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Windham TXL R2142-461-41121

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

Yates2,709144
Grayburg3,945-1,092
San Andres4,775-1,922
Spraberry7,905-5,052
Devonian—
Ellenburger—
Wolfcamp—
Strawn—

9 TOPS · FIRST 8

Windham B642-461-40699

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

Yates9031,942
Grayburg2,737108
San Andres4,712-1,867
Spraberry8,655-5,810
Wolfcamp9,653-6,808
Fusselman—
Devonian—
Strawn—

9 TOPS · FIRST 8

Windham B442-461-40698

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

Yates9031,942
Grayburg1,6621,183
San Andres4,756-1,911
Spraberry8,664-5,819
Wolfcamp9,654-6,809
Fusselman—
Devonian—
Strawn—

9 TOPS · FIRST 8

Windham B342-461-40705

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

Yates9041,941
Grayburg1,7001,145
San Andres4,756-1,911
Spraberry8,664-5,819
Wolfcamp9,654-6,809
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

Windham B742-461-40695

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

Yates9031,942
Grayburg2,737108
San Andres4,756-1,911
Spraberry8,277-5,432
Wolfcamp9,654-6,809
Devonian—
Fusselman—
Strawn—

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/46140689, documented in the API reference.