TEXAS · WELLS · CRANE COUNTY · API 42-103-32496 · DISTRICT 7B
Tubb J. B. -F- #21
Crane County · Sand Hills (McKnight) field · Shut In · Vertical
- Permitted field
- Sand Hills (Judkins)
Tubb J. B. -F- #21 (API 42-103-32496) is a well in Crane County operated by Formentera Operations LLC, completed May 31, 1981 and listed as shut in on the RRC schedule, shut in September 1, 2026.
The RRC has issued 3 drilling permits between 1981 and 1983, permitted to 4,775 ft.
It was permitted by Exxon Corp. and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 2 formation tops, including McKnight, Tubb.
Its 2 leases have reported 219K barrels of oil and 3.94M mcf of gas since the record begins in January 1993, last reporting volume in April 2026. The leases carry 24 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Corp.; 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
- 94
- Phone
- (512) 514-5779
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Formentera Operations LLC |
| Production reports | Formentera Operations LLCthrough Apr 2026 |
| Latest permit | Exxon Corp.Dec 14, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,775
- total depth, ft
- 3
- permits on file
- Dec 14, 1983
- last permit issued
- May 31, 1981
- completed
- 219K
- cumulative oil, bbl
- 3.94M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH APR 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 31, 1981
- Shut in
- Sep 1, 2026
- 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.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 24 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tubb, J. B., -F- O-10-16234 | Sand Hills (McKnight) | Formentera Operations LLC | 23 | 214K | 3.73M | by Jan 1993 – Apr 2026 |
| J B Tubb F G-10-108700 | Sand Hills (Judkins) | Formentera Operations LLC | 1 | 4.94K | 213K | by Jan 1993 – May 2022 |
Gas, mcf lease total
Last 12 months 75,931 · prior 12 59,637(+27%)
Oil, barrels lease total
Last 12 months 2,369 · prior 12 2,275(+4%)
Wells named Tubb J. B. -F-
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 wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Oct 2004
- 3Apache CorporationNov 2004 → Jun 2021
- 4Slant Operating, LLCJul 2021 → Oct 2023
- 5Formentera Operations LLCNov 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 227610-99 | Recompletion | Exxon Corp. | Dec 13, 1983 | Dec 14, 1983 | — | 4,775 |
| 205385-99 | Recompletion | Exxon Corp. | Aug 5, 1983 | Aug 12, 1983 | — | 4,775 |
| 108539-99 | Drill | Exxon Corp. | Feb 17, 1981 | Feb 17, 1981 | May 1, 1981 | 4,775 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 6, 1983 | J B Tubb F G-10-108700 | Sand Hills (Judkins) | Formentera Operations LLC | Temp Abandoned · shut in May 1, 2022 | 4,775 |
| May 31, 1981 | Tubb J. B. -F- O-10-16234 | Sand Hills (McKnight) | Formentera Operations LLC | Shut In · shut in Sep 1, 2026 | 4,775 |
| Jun 13, 1981 | Tubb J. B. -F- O-10-10413 | Sand Hills (Tubb) | Formentera Operations LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,510 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,686 | 2,952 | Perforated |
| 3,055 | 3,208 | Perforated |
| 4,192 | 4,650 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 535 | 13.5 | 300 S |
| 1.5 | 2,997 | — | — |
| 2.875 | 3,614 | — | — |
| 2.375 | 4,108 | — | — |
| 4.5 | 4,769 | 9.5 | 2,100 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 13, 1984 | Jan 17, 1984 | — |
| 00 | Feb 3, 1984 | Jan 17, 1984 | — |
| 00 | Jan 12, 1984 | Aug 26, 1981 | — |
| 00 | Jan 12, 1984 | Jul 29, 1981 | Yes |
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 described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans McKnight, Tubb | 2 TIFF | 1,170 to 4,762 | Jul 30, 2012run May 11, 1981 | 1.13 + 1.26 |
"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.
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.
- Wellbore filings for 42-103-32496 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-32496 → scanned completion filings
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/10332496, documented in the API reference.