TEXAS · WELLS · WINKLER COUNTY · API 42-495-30303 · DISTRICT 7B

East Keystone (San a Holt Unit) #1

Plugged

Winkler County · Keystone (Consolidated) field  · Vertical

East Keystone (San A Holt Unit) #1 (API 42-495-30303) is a plugged well in Winkler County, plugged November 17, 2018, last operated by Formentera Operations LLC.

The RRC has issued one drilling permit, issued August 5, 1998, permitted to 5,285 ft.

It was permitted by Hallwood Petroleum, Inc. and has since transferred to Formentera Operations LLC on the wellbore schedule.

Its 3 leases have reported 1.6M barrels of oil and 2.04M mcf of gas since January 1993, last reporting in July 2026. The leases carry 162 wells, so these are lease totals, not this well alone.

Operator of record

Formentera Operations LLC

Permitted by Hallwood Petroleum, Inc.; the EWA schedule now lists a different operator.

Based in
Austin, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 11, 2026
Permits on file
90
Phone
(512) 514-5779

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsFormentera Operations LLCthrough Apr 2026
Latest permitHallwood Petroleum, Inc.Aug 5, 1998
5,285
total depth, ft
1
permits on file
Aug 5, 1998
last permit issued
Feb 13, 1975
completed
1.6M
cumulative oil, bbl
2.04M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 13, 1975
Shut in
—
Plugged
Nov 17, 2018

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 3 leases this well is completed on; they carry 162 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
East Keystone (San a Holt Unit) O-10-46985Keystone (Consolidated)Formentera Operations LLC76264K109KSep 2015 – Jul 2026
East Keystone(san a Holt Unit) O-10-36780Keystone (Holt)Merit Energy Company811.29M1.81MJan 2002 – Dec 2015
Ward, M. B. O-10-23491Keystone (San Andres)Gruy Petroleum Management Co.548.7K119KJan 1993 – Apr 2002

Oil, barrels lease total

Last 12 months 6,968 · prior 12 7,996(-13%)

01K2K202420252026

Gas, mcf lease total

Last 12 months 2,310 · prior 12 1,854(+25%)

0200400600202420252026

Chain of custody

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

  1. 1Hallwood Energy CorporationJan 1993 → Nov 1994
  2. 2Hallwood Petroleum, Inc.Dec 1994 → Jan 2000
  3. 3Prize Operating CompanyFeb 2000 → Mar 2002
  4. 4Gruy Petroleum Management Co.Apr 2002 → Apr 2006
  5. 5Cimarex Energy Co. of ColoradoMay 2006 → Dec 2012
  6. 6Merit Energy CompanyJan 2013 → Nov 2016
  7. 7Blackbeard Operating, LLCDec 2016 → May 2021
  8. 8Saddleback Exploration, LLCJun 2021 → Apr 2024
  9. 9Formentera Operations LLCMay 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
478478-99RecompletionHallwood Petroleum, Inc.Aug 4, 1998Aug 5, 1998—5,285

Completions

CompletedLeaseFieldOperatorStatusDepth
Feb 13, 1975East Keystone (San a Holt Unit) O-10-46985Keystone (Consolidated)Formentera Operations LLCPlugged—
Feb 13, 1975Ward M. B. O-10-23491Keystone (San Andres)Gruy Petroleum Management Co.Plugged—
Feb 13, 1975East Keystone(san a Holt Unit) O-10-36780Keystone (Holt)Merit Energy CompanyPlugged—

Perforations

Perforated and open-hole intervals.

FromToType
—4,670Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7573514.75450 S
4.54,8747.875250 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
00Nov 4, 2015Feb 21, 1975—
00Jan 24, 2002Feb 21, 1975—
00Jan 12, 1984Feb 21, 1975—

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/49530303, documented in the API reference.