WELL · 42-135-06958 · DISTRICT 8
Thomas A #4
Ector County · TXL (Tubb) field · Vertical
Thomas A #4 (API 42-135-06958) is a plugged well in Ector County, plugged April 25, 2023, last operated by Oxy USA Wtp LP.
The RRC has issued one drilling permit, issued December 11, 1987, permitted to 9,840 ft.
It was permitted by Cities Service Oil & Gas Corp. and has since transferred to Oxy USA Wtp LP on the wellbore schedule.
Completion filings report 3 formation tops, including Tubb, Devonian, Wolfcamp.
Its lease has reported 20.2K barrels of oil and 39.8K mcf of gas since January 1993, last reporting in May 2023. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cities Service Oil & Gas Corp.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Sep 4, 2025 · 2,289 permits on file · (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | OXY USA WTP LP |
| Production reports | OXY USA WTP LPthrough Sep 2017 |
| Latest permit | Cities Service Oil & Gas Corp.Dec 11, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,840
- total depth, ft
- 1
- permits on file
- Dec 11, 1987
- last permit issued
- Oct 29, 1991
- completed
- 20.2K
- cumulative oil, bbl
- 39.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 29, 1991
- Shut in
- —
- Plugged
- Apr 25, 2023
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 lease this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Thomas A O-10-31527 | TXL (Tubb) | OXY USA WTP LP | 2 | 20.2K | 39.8K | Jan 1993 – May 2023 |
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.
- 1OXY USA Inc.Jan 1993 → Dec 2000
- 2OXY USA WTP LPJan 2001 → Sep 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 339751-99 | Recompletion | Cities Service Oil & Gas Corp. | Dec 7, 1987 | Dec 11, 1987 | — | 9,840 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-31527 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,331 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,182 | 6,376 | Perforated |
| — | 8,050 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 227 | 17.5 | 250 S |
| 13.375 | 227 | — | — |
| 8.625 | 3,789 | 11 | 3,100 S |
| 8.625 | 3,789 | — | — |
| 5.5 | 9,798 | 7.875 | 750 S |
| 5.5 | 9,800 | — | — |
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 | Jan 17, 1992 | Dec 13, 1991 | — |
| 00 | Dec 28, 1987 | Dec 9, 1987 | Yes |
| 00 | Dec 16, 1987 | — | — |
| 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 42-135-06958 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-06958 → 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.
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/13506958, documented in the API reference.