WELL · 42-481-33287 · DISTRICT 3
Cockburn Oil Unit #1
Wharton County · Magnet Withers E. (F-7) field · Vertical
Cockburn Oil Unit #1 (API 42-481-33287) is a well in Wharton County operated by Rodessa Operating Company, completed July 5, 1990.
The RRC has issued 2 drilling permits between 1990 and 1998, permitted to 6,150 ft.
Completion filings report 3 formation tops, including Catahoula, Het, Frio.
Its 2 leases have reported 112K barrels of oil and 2.99K 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
Corpus Chrsti, TX · P-5 Y, filed Jul 4, 2026 · 63 permits on file · (361) 815-6420
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Rodessa Operating Company |
| Production reports | Charolais Energy, LLCthrough Jan 2026 |
| Latest permit | Rodessa Operating CompanyNov 6, 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
- 2
- permits on file
- Nov 6, 1998
- last permit issued
- Jul 5, 1990
- completed
- 112K
- cumulative oil, bbl
- 2.99K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 5, 1990
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cockburn Oil Unit O-3-23609 | Magnet Withers, E.(frio Lower) | Charolais Energy, LLC | 1 | 86.5K | 280 | Dec 1998 – Jul 2026 |
| Cockburn Oil Unit O-3-20766 | Magnet Withers, E. (F-7) | Rodessa Operating Company | 1 | 26K | 2.71K | Jan 1993 – Feb 1999 |
Oil, barrels lease total
Last 12 months 7 · prior 12 1,298(-99%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1McLeod, George L. Inc.Jan 1993 → May 1998
- 2Rodessa Operating CompanyJun 1998 → Nov 2012
- 3Lodi Drilling & Service Co.Dec 2012 → Jan 2014
- 4Choice Exploration, Inc.Mar 2014 → May 2015
- 5Gemarmi Inc.Jan 2016 → Apr 2017
- 6Resource Expl & Prod, Inc.Nov 2022 → Jun 2023
- 7Cotton Valley Resources, LLCJul 2023 → Feb 2025
- 8Charolais Energy, LLCApr 2025 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 480718-99 | Recompletion | Rodessa Operating Company | Nov 6, 1998 | Nov 6, 1998 | Dec 1, 1998 | 5,920 |
| 362346-99 | Drill | McLeod, George L. Inc. | Aug 3, 1989 | Feb 5, 1990 | — | 6,150 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-20766 | — | — | — | — |
| — | — O-3-23609 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 75 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,730 | 5,735 | Perforated |
| 5,955 | 5,960 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,640 | 12.25 | 685 S |
| 5.5 | 6,160 | 7.875 | 475 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 | Jan 25, 1999 | Dec 15, 1998 | Yes |
| 00 | Jan 15, 1999 | Aug 7, 1990 | Yes |
| 00 | Oct 16, 1990 | Aug 7, 1990 | Yes |
| 00 | Oct 5, 1990 | — | — |
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 42-481-33287 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-481-33287 → 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/48133287, documented in the API reference.