TEXAS · WELLS · CRANE COUNTY · API 42-103-32848 · DISTRICT 7B

Tubb J. B. C #31

Shut in

Crane County · Sand Hills (Tubb) field · Temp Abandoned  · Vertical

Fields on the latest permit · any of 2
Sand Hills (McKnight) · Sand Hills (Tubb)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Tubb J. B. C #31 (API 42-103-32848) is a well in Crane County operated by Formentera Operations LLC, completed March 14, 1994 and listed as temp abandoned on the RRC schedule, shut in September 1, 2019.

The RRC has issued one drilling permit, issued February 25, 1982, permitted to 4,780 ft.

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

Completion filings report 4 formation tops, including Judkins, McKnight, San Angelo, Tubb.

Its 2 leases have reported 4.22K barrels of oil and 891K mcf of gas since the record begins in January 1993, with no volume in the three years through August 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Formentera Operations LLC

Permitted by Exxon Corp.; the EWA schedule now lists a different operator.

Based in
Austin, TX
P-5 status
Active (A)
P-5 last filed
Jun 11, 2026
Permits on file
94
Phone
(512) 514-5779

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFormentera Operations LLC
Production reportsFormentera Operations LLCthrough Aug 2019
Latest permitExxon Corp.Feb 25, 1982

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

4,780
total depth, ft
1
permits on file
Feb 25, 1982
last permit issued
Mar 14, 1994
completed
4.22K
cumulative oil, bbl
891K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2019

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 14, 1994
Shut in
Sep 1, 2019
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Tubb, J. B. C G-10-102328Sand Hills (Tubb)Formentera Operations LLC14.01K855Kby Jan 1993 – Aug 2019
Tubb, J. B. "C" G-10-130374Sand Hills (McKnight)Exxon Corp.121035.6Kby Jan 1993 – Nov 1993

No volumes reported on these leases in the last three years.

Wells named Tubb J. B. C

Formentera Operations LLC's other wells filed under this lease name in Crane County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

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 → Aug 2019

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
151808-99DrillExxon Corp.Feb 25, 1982Feb 25, 1982Aug 12, 19824,775

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 14, 1994Tubb J. B. C G-10-102328Sand Hills (Tubb)Formentera Operations LLCTemp Abandoned · shut in Sep 1, 20194,780
Sep 20, 1982Tubb J. B. -C- O-10-18870Sand Hills (McKnight)Formentera Operations LLCNot on Schedule—
Sep 20, 1982Tubb J. B. C G-10-130374Sand Hills (McKnight)Exxon Corp.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,600 ft elevation.Download CSV →

FormationMD ftSubsea
Judkins2,642-42
McKnight3,040-440
San Angelo3,494-894
Tubb4,142-1,542

Perforations

Perforated and open-hole intervals.

FromToType
3,0503,318Perforated
3,0504,626Perforated
4,2104,626Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7555113.75325 S
1.53,370——
2.8753,7449.52,150 S
2.8753,744——
2.3754,130——
4.54,7707.8752,150 S
4.54,7709.52,150 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jul 6, 1994May 16, 1994—
00Apr 19, 1989Mar 31, 1989—
00Apr 15, 1989——
00Jan 12, 1984Nov 2, 1982—
00Jan 12, 1984Oct 28, 1982Yes

Well logs

1 log loaded from the RRC's log index, the latest received Jul 30, 2012. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
NEUTRON POROSITYSpans Judkins, McKnight, San Angelo, TubbTIFF0 to 4,795Jul 30, 2012run Aug 22, 19821.15

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

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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.

The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/10332848, documented in the API reference.