WELL · 42-481-81471 · DISTRICT 3
Cockburn H. C. #18
Wharton County · Magnet Withers (F-10 East) field · Vertical
Cockburn H. C. #18 (API 42-481-81471) is a plugged well in Wharton County, plugged July 22, 1975, last operated by Kcs Resources Inc..
The RRC has issued one drilling permit, issued September 11, 2012, permitted to 6,500 ft.
It was permitted by Milagro Exploration, LLC and has since transferred to Kcs Resources Inc. on the wellbore schedule.
Completion filings report one formation top, including Frio.
Its lease has reported 6.54M barrels of oil and 5.82M mcf of gas since January 1993, last reporting in July 2026. The lease carries 143 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Milagro Exploration, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 3, 2008 · 490 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | KCS Resources Inc. |
| Production reports | Orx Resources, L.L.C.through Apr 2026 |
| Latest permit | Milagro Exploration, LLCSep 11, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 1
- permits on file
- Sep 11, 2012
- last permit issued
- —
- completed
- 6.54M
- cumulative oil, bbl
- 5.82M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- Jul 22, 1975
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 143 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cockburn, H. C. O-3-2899 | Magnet Withers | Orx Resources, L.L.C. | 143 | 6.54M | 5.82M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 91,244 · prior 12 85,228(+7%)
Gas, mcf lease total
Last 12 months 6,535 · prior 12 4,502(+45%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Dec 2005
- 3KCS Resources, Inc.Jan 2006 → Nov 2007
- 4Milagro Exploration, LLCDec 2007 → Oct 2015
- 5White Oak Operating Company LLCNov 2015 → Apr 2023
- 6Orx Resources, L.L.C.May 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 747464-99 | Reenter | Milagro Exploration, LLC | Aug 31, 2012 | Sep 11, 2012 | Sep 20, 2012 | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-2899 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 72 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| FrioFRIO 1 | 5,522 | -5,450 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,522 | 5,528 | Perforated |
| — | 6,198 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,109 | 12.25 | 300 S |
| 4.5 | 1,586 | 5.5 | 38 S |
| 5.5 | 5,540 | 8.75 | 350 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 27, 2013 | Dec 13, 2012 | Yes |
| 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 42-481-81471 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-481-81471 → 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/48181471, documented in the API reference.