TEXAS · WELLS · ECTOR COUNTY · API 42-135-10920 · DISTRICT 7B
Thomas -B- Tract 1 #529
Ector County · Goldsmith W. (San Andres) field · Shut In · Vertical
Thomas -B- Tract 1 #529 (API 42-135-10920) is a well in Ector County operated by Formentera Operations LLC, completed August 15, 1977 and listed as shut in on the RRC schedule, shut in January 1, 2009.
The RRC has issued one drilling permit, issued August 26, 1977, permitted to 6,050 ft.
It was permitted by Shell Oil Company and has since transferred to Formentera Operations LLC on the wellbore schedule.
Its 2 leases have reported 11.4K barrels of oil and 63.6K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Shell Oil Company; 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 schedule | Formentera Operations LLC |
| Production reports | Apache Corporationthrough Sep 2011 |
| Latest permit | Shell Oil CompanyAug 26, 1977 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,050
- total depth, ft
- 1
- permits on file
- Aug 26, 1977
- last permit issued
- Aug 15, 1977
- completed
- 11.4K
- cumulative oil, bbl
- 63.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 15, 1977
- Shut in
- Jan 1, 2009
- 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 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Thomas -B- Tract 1 O-10-49719 | Goldsmith, W. (San Andres) | Formentera Operations LLC | 1 | 0 | 0 | Mar 2018 – Jul 2026 |
| Thomas -B- Tract 1 O-10-20208 | TXL (San Andres) | Apache Corporation | 4 | 11.4K | 63.6K | Jan 1993 – Apr 2018 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Shell Western E&P Inc.Jan 1993 → Nov 1995
- 2Anadarko Petroleum CorporationDec 1995 → Mar 2007
- 3Apache CorporationApr 2007 → Sep 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 8473-99 | Recompletion | Shell Oil Company | Aug 26, 1977 | Aug 26, 1977 | — | 5,303 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 15, 1977 | Thomas -B- Tract 1 O-10-49719 | Goldsmith W. (San Andres) | Formentera Operations LLC | Shut In | 6,050 |
| Aug 15, 1977 | Thomas -B- Tract 1 O-10-20208 | TXL (San Andres) | Apache Corporation | Not on Schedule | — |
| — | TXL North Unit O-10-20487 | TXL (Tubb) | Formentera Operations LLC | Not on Schedule | — |
| — | TXL North Unit O-10-20487 | TXL (Tubb) | Formentera Operations LLC | Not on Schedule | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| — | 4,339 | Perforated |
| — | 6,158 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 7.625 | 1,500 | 9.875 | 650 S |
| 4.5 | 6,050 | 6.75 | 500 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Apr 12, 2018 | Aug 26, 1977 | — |
| 00 | Jan 12, 1984 | Aug 26, 1977 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-135-10920 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-10920 → scanned completion filings
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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000120390 | UIC Permit | Canceled Jan 14, 2020 | 1,000 | 1,000 | 5,473–5,998 |
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/13510920, documented in the API reference.