WELL · 42-481-33441 · DISTRICT 3
Cockburn Oil Corp. Unit #2
Wharton County · Magnet Withers E.(frio Lower) field · Shut IN · Vertical
Cockburn Oil Corp. Unit #2 (API 42-481-33441) is a well in Wharton County operated by Charolais Energy LLC, completed October 8, 1991 and listed as shut in on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 1991 and 1998, permitted to 6,150 ft.
It was permitted by Rodessa Operating Company and has since transferred to Charolais Energy LLC on the wellbore schedule.
Completion filings report one formation top, including Frio.
Its 2 leases have reported 7.04K barrels of oil and 318K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Rodessa Operating Company; the EWA schedule now lists a different operator.
Kilgore, TX · P-5 Y, filed Nov 4, 2025 · (832) 492-5175
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Charolais Energy LLC |
| Production reports | Rodessa Operating Companythrough May 2007 |
| Latest permit | McLeod, George L. Inc.Jul 1, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,150
- total depth, ft
- 3
- permits on file
- Jul 1, 1998
- last permit issued
- Oct 8, 1991
- completed
- 7.04K
- cumulative oil, bbl
- 318K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 8, 1991
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cockburn Oil Corp. Unit G-3-170592 | Magnet Withers, E.(miocene 3670) | Charolais Energy, LLC | 1 | 0 | 316K | Jul 1998 – Jul 2026 |
| Cockburn Oil Corp. Unit O-3-21370 | Magnet Withers, E.(frio Lower) | Charolais Energy, LLC | 1 | 7.04K | 2.2K | 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.
- 1McLeod, George L. Inc.Jan 1993 → Dec 1993
- 2Rodessa Operating CompanyJul 1998 → May 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 477620-97 | Recompletion | Rodessa Operating Company | Aug 17, 1998 | Jul 1, 1998 | Jul 1, 1998 | 4,090 |
| 477620-99 | Recompletion | McLeod, George L. Inc. | Jul 1, 1998 | Jul 1, 1998 | — | 3,850 |
| 378330-99 | Drill | McLeod, George L. Inc. | Sep 24, 1990 | Jul 3, 1991 | Aug 26, 1991 | 6,150 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-170592 | — | — | — | — |
| — | — O-3-21370 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 75 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| FrioFRIO (LOWER) | 5,720 | -5,645 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,818 | 3,826 | Perforated |
| 5,720 | 5,722 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,625 | 17.5 | 880 S |
| 8.625 | 3,325 | 12.25 | 740 S |
| 5.5 | 5,950 | 7.875 | 315 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 | Nov 19, 1998 | Aug 4, 1998 | Yes |
| 00 | Nov 6, 1998 | — | — |
| 00 | Mar 9, 1992 | Oct 25, 1991 | Yes |
| 00 | Mar 2, 1992 | — | — |
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 42-481-33441 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-481-33441 → 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/48133441, documented in the API reference.