WELL · 42-009-39993 · DISTRICT 9
Tomac Unit #1
Archer County · Archer County Regular field · Vertical
Tomac Unit #1 (API 42-009-39993) is a plugged well in Archer County, plugged October 28, 2013, last operated by Gulfstar.
The RRC has issued one drilling permit, issued August 9, 1988, permitted to 5,200 ft.
It was permitted by Cooper Oil & Gas, Inc. and has since transferred to Gulfstar on the wellbore schedule.
Completion filings report 3 formation tops, including Palo Pinto, Caddo, Mississippian.
Its lease has reported 1.19K barrels of oil and 18 mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Cooper Oil & Gas, Inc.; the EWA schedule now lists a different operator.
Olney, TX · P-5 Y, filed May 6, 2016
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Gulfstar |
| Production reports | JLR Energythrough Aug 1994 |
| Latest permit | Cooper Oil & Gas, Inc.Aug 9, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,200
- total depth, ft
- 1
- permits on file
- Aug 9, 1988
- last permit issued
- Sep 8, 1988
- completed
- 1.19K
- cumulative oil, bbl
- 18
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 8, 1988
- Shut in
- —
- Plugged
- Oct 28, 2013
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tomac Unit O-13-27159 | Archer County Regular | Gulfstar | 1 | 1.19K | 18 | Jan 1993 – Jul 2026 |
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.
- 1Cooper Oil & Gas, Inc.Jan 1993 → Mar 1993
- 2JLR EnergyJun 1993 → Aug 1994
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 349633-99 | Drill | Cooper Oil & Gas, Inc. | Aug 1, 1988 | Aug 9, 1988 | — | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-27159 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,244 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Palo PintoPALO PINTO LIME | 3,152 | -1,908 |
| Caddo | 4,722 | -3,478 |
| MississippianMISS. | 5,056 | -3,812 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,059 | 5,073 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 130 | 12.75 | 100 S |
| 4.5 | 5,059 | 7.875 | 110 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 | Sep 30, 1988 | Sep 13, 1988 | Yes |
| 00 | Sep 24, 1988 | — | — |
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 42-009-39993 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-009-39993 → 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/00939993, documented in the API reference.