WELL · 42-353-31033 · DISTRICT 7
Thomas Ranch A #3
Nolan County · Thomas Ranch (Ellenburger) field · Vertical
Thomas Ranch A #3 (API 42-353-31033) is a well in Nolan County operated by Robertson Resources Inc., completed April 13, 1981.
The RRC has issued one drilling permit, issued December 29, 1980, permitted to 7,300 ft.
It was permitted by Sun Texas Company and has since transferred to Robertson Resources Inc. on the wellbore schedule.
Its 2 leases have reported 85.3K barrels of oil and 42.5K mcf of gas since January 1993, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sun Texas Company; the EWA schedule now lists a different operator.
- Based in
- Horseshoe Bay, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Feb 26, 2026
- Permits on file
- 32
- Phone
- (432) 688-5106
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Robertson Resources Inc. |
| Production reports | Flat Top Operating, LLCthrough Mar 2026 |
| Latest permit | Sun Texas CompanyDec 29, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,300
- total depth, ft
- 1
- permits on file
- Dec 29, 1980
- last permit issued
- Apr 13, 1981
- completed
- 85.3K
- cumulative oil, bbl
- 42.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 13, 1981
- 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 2 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Thomas Ranch O-8-14563 | Thomas Ranch (Ellenburger) | Flat Top Operating, LLC | 2 | 81.5K | 42.5K | Jan 1993 – Jul 2026 |
| Thomas Ranch "A" O-8-16309 | Thomas Ranch (Ellenburger) | Robertson Resources, Inc. | 2 | 3.84K | 16 | Jan 1993 – Feb 1997 |
Oil, barrels lease total
Last 12 months 1,718 · prior 12 1,572(+9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cleveland Production CompanyJan 1993 → Jan 1994
- 2Cuatro Oil and Gas CorporationJan 1993 → May 1994
- 3Horizon Well Services, Inc.Mar 1996 → Aug 1996
- 4Robertson Resources, Inc.Sep 1996 → Feb 2025
- 5Flat Top Operating, LLCMar 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 103308-99 | Drill | Sun Texas Company | Dec 29, 1980 | Dec 29, 1980 | — | 7,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-14563 | — | — | — | — |
| — | — O-8-16309 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,216 | 7,260 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 462 | 12.25 | 375 S |
| 2.875 | 7,250 | — | — |
| 5.5 | — | 7.875 | 450 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 | Oct 24, 1996 | Jun 19, 1981 | — |
| 00 | Jan 12, 1984 | Jun 19, 1981 | — |
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 42-353-31033 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-31033 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/35331033, documented in the API reference.