WELL · 42-103-32872 · DISTRICT 8

Tubb J. B. a/C 1 #261

N

Crane County · Sand Hills (Tubb) field  · Vertical

Tubb J. B. A/C 1 #261 (API 42-103-32872) is a well in Crane County operated by Formentera Operations LLC, completed April 29, 1991.

The RRC has issued 2 drilling permits between 1982 and 2007, permitted to 5,000 ft.

It was permitted by Apache Corporation and has since transferred to Formentera Operations LLC on the wellbore schedule.

Completion filings report 5 formation tops, including Judkins, McKnight, San Angelo, Tubb.

Its 3 leases have reported 2.52M barrels of oil and 41.3M mcf of gas since January 1993, last reporting in July 2026. The leases carry 329 wells, so these are lease totals, not this well alone.

Operator of record

Formentera Operations LLC

Permitted by Apache Corporation; the EWA schedule now lists a different operator.

Austin, TX · P-5 Y, filed May 4, 2026 · 90 permits on file · (844) 509-5768

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFormentera Operations LLC
Production reportsFormentera Operations LLCthrough Apr 2026
Latest permitApache CorporationMay 15, 2007

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

5,000
total depth, ft
2
permits on file
May 15, 2007
last permit issued
Apr 29, 1991
completed
2.52M
cumulative oil, bbl
41.3M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Apr 29, 1991
Shut in
—
Plugged
—

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 329 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Tubb, J. B. a/C #1 O-10-5264Sand Hills (McKnight)Formentera Operations LLC1541.25M22.5MJan 1993 – Jul 2026
Tubb, J. B. a/C 1 O-10-5295Sand Hills (Tubb)Formentera Operations LLC1711.26M18.7MJan 1993 – Jul 2026
Tubb, J. B. a/C 1 O-10-17696Sand Hills (San Angelo, Upper)Exxon Corp.42.39K6.38KJan 1993 – Jan 1994

Gas, mcf lease total

Last 12 months 268,708 · prior 12 260,212(+3%)

020K40K60K202420252026

Oil, barrels lease total

Last 12 months 20,807 · prior 12 21,083(-1%)

01K2K3K202420252026

Chain of custody

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

  1. 1Exxon Corp.Jan 1993 → Mar 2000
  2. 2Exxon Mobil CorporationApr 2000 → Oct 2004
  3. 3Apache CorporationNov 2004 → Jun 2021
  4. 4Slant Operating, LLCJul 2021 → Oct 2023
  5. 5Formentera Operations LLCNov 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
638274-99RecompletionApache CorporationMay 3, 2007May 15, 2007Nov 1, 20075,000
156381-99DrillExxon Corp.Apr 12, 1982Apr 12, 1982Apr 16, 19824,775

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-5264————
—— O-10-5295————
—— O-10-17696————

Formation tops

As filed on W-2/G-1. Subsea from 2,612 ft elevation.Download CSV →

FormationMD ftSubsea
Judkins2,651-39
McKnight3,044-432
San Angelo3,455-843
Tubb4,198-1,586
Clear ForkLOWER CLEARFORK4,302-1,690

Perforations

Perforated and open-hole intervals.

FromToType
2,7263,008Perforated
3,0533,346Perforated
3,4583,586Perforated
4,2504,434Perforated
4,2504,437Perforated
4,2504,591Perforated
4,4454,591Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7557413.5300 S
1.53,387——
2.8753,7329.52,300 S
2.8753,7327.875—
2.8753,732——
2.3754,172——
4.54,7887.8752,300 S
4.54,7889.52,300 S
10.755,74513.5300 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
00Feb 26, 2008Dec 31, 2007Yes
00Feb 8, 2008——
00Jul 16, 1991May 24, 1991—
00Jun 2, 1988May 6, 1988—
00Jun 18, 1986Jun 3, 1986—
00Jan 12, 1984Jun 24, 1982—
00Jan 12, 1984Jun 21, 1982—

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/10332872, documented in the API reference.