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TEXAS · WELLS · WINKLER COUNTY · API 42-495-03916 · DISTRICT 7B

Keystone Holt Unit #640

Shut in

Winkler County · Keystone (Consolidated) field · Shut In  · Horizontal · Sidetrack

Keystone Holt Unit #640 (API 42-495-03916) is a horizontal well in Winkler County operated by Basin Oil & Gas Operating LLC, completed July 11, 2023 and listed as shut in on the RRC schedule, shut in May 1, 2025.

The RRC has issued one drilling permit, issued November 26, 1997, permitted to 4,726 ft.

It was permitted by Bass Enterprises Production CO. and has since transferred to Basin Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report 9 formation tops, including Rustler, Salado, Tansill, Yates.

Its 4 leases have reported 8.74M barrels of oil and 18.1M mcf of gas since January 1993, last reporting in July 2026. The leases carry 306 wells, so these are lease totals, not this well alone.

Operator of record

Basin Oil & Gas Operating LLC

Permitted by Bass Enterprises Production Co.; the EWA schedule now lists a different operator.

Based in
Fort Worth, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 21, 2026
Permits on file
150
Phone
(817) 820-8910
Watch this operatorWatch Winkler County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBasin Oil & Gas Operating LLC
Production reportsBasin Oil & Gas Operating, LLCthrough Apr 2026
Latest permitBass Enterprises Production Co.Nov 26, 1997

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

4,726
total depth, ft
1
permits on file
Nov 26, 1997
last permit issued
Jul 11, 2023
completed
8.74M
cumulative oil, bbl
18.1M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 11, 2023
Shut in
May 1, 2025
Plugged
—

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

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 4 leases this well is completed on; they carry 306 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Keystone Holt Unit O-10-47085Keystone (Consolidated)Basin Oil & Gas Operating, LLC1402.25M2.68MSep 2015 – Jul 2026
Keystone Holt Unit G-10-173986Keystone (Holt)Basin Oil & Gas Operating, LLC101.87MJul 1999 – Aug 2023
Keystone Holt Unit O-10-20730Keystone (Holt)Bopco, L.P.1646.49M13.6MJan 1993 – Jan 2016
Keystone Holt Unit G-10-172316Keystone (Holt)Bass Enterprises Production Co.100Mar 1999 – Mar 1999

Oil, barrels lease total

Last 12 months 283,461 · prior 12 363,849(-22%)

020K40K202420252026

Gas, mcf lease total

Last 12 months 362,588 · prior 12 259,047(+40%)

020K40K60K202420252026

Chain of custody

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

  1. 1Bass Enterprises Production Co.Jan 1993 → Dec 2006
  2. 2Bepco, L.P.Jan 2007 → Nov 2008
  3. 3Bopco, L.P.Dec 2008 → Nov 2017
  4. 4XTO Energy Inc.Dec 2017 → Apr 2020
  5. 5Meco IV, LLCMay 2020 → Jun 2021
  6. 6Meco IV Holdco, LLCJul 2021 → Mar 2022
  7. 7Basin Oil & Gas Operating, LLCApr 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
470584-99Recompletion · sidetrackBass Enterprises Production Co.Nov 26, 1997Nov 26, 1997Dec 1, 19975,070

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 11, 2023Keystone Holt Unit O-10-47085Keystone (Consolidated)Basin Oil & Gas Operating LLCShut In · shut in May 1, 20254,726
Mar 24, 1998Keystone Holt Unit G-10-173986Keystone (Consolidated)Basin Oil & Gas Operating LLCNot on Schedule—
Mar 24, 1998Keystone Holt Unit O-10-20730Keystone (Holt)Bopco L.P.Not on Schedule—
Mar 24, 1998Keystone Holt Unit G-10-172316Keystone (Holt)Bass Enterprises Production Co.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,950 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler8232,127
Salado1,0481,902
Tansill2,110840
Yates2,278672
Seven Rivers2,535415
Colby/Queen3,091-141
Grayburg3,257-307
San Andres3,485-535
Holt4,538-1,588

Perforations

Perforated and open-hole intervals.

FromToType
4,5576,234Open hole
4,5576,235Perforated
4,5576,235Open hole
4,8874,892Perforated
4,8874,985Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.375262——
13.37527817200 S
13.37527817.25200 S
13.37527817.5200 S
9.6252,75112.251,000 S
2.3754,722——
74,7238.75450 S
74,7558.75450 S
54,995——

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
00Jan 31, 2024Nov 7, 2023—
00Sep 24, 1999Aug 5, 1999—
00Sep 2, 1999——
00Aug 18, 1999Mar 25, 1999—
00Apr 7, 1999——
00Jul 29, 1998May 19, 1998Yes
00Feb 25, 1985Dec 21, 1984—
00Jan 12, 1984Feb 24, 1966—

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.

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/49503916, documented in the API reference.