TEXAS · WELLS · COCHRAN COUNTY · API 42-079-31824 · DISTRICT 7B
South Mallet Unit #50
Cochran County · Slaughter field · Producing · Vertical
South Mallet Unit #50 (API 42-079-31824) is a well in Cochran County operated by Winn Operating LLC, completed November 10, 1983 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 29, 1983, permitted to 5,055 ft.
It was permitted by Texaco Inc. and has since transferred to Winn Operating LLC on the wellbore schedule.
Its 2 leases have reported 925K barrels of oil and 614K mcf of gas since January 1993, last reporting in July 2026. The leases carry 198 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Texaco Inc.; the EWA schedule now lists a different operator.
- Based in
- Kilgore, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 23, 2026
- Permits on file
- 1
- Phone
- (903) 984-3443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texaco E & P Inc. |
| Production reports | Winn Operating, LLCthrough Apr 2026 |
| Latest permit | Texaco Inc.Sep 29, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,055
- total depth, ft
- 1
- permits on file
- Sep 29, 1983
- last permit issued
- Nov 10, 1983
- completed
- 925K
- cumulative oil, bbl
- 614K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 10, 1983
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 198 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| South Mallet Unit O-11-67225 | Slaughter | Winn Operating, LLC | 144 | 857K | 564K | Apr 1994 – Jul 2026 |
| Mallet Land & Cattle Co. "F" O-11-17763 | Slaughter | Texaco E & P Inc. | 54 | 67.6K | 50.1K | Jan 1993 – Jul 1994 |
Oil, barrels lease total
Last 12 months 5,089 · prior 12 6,452(-21%)
Gas, mcf lease total
Last 12 months 7,179 · prior 12 4,494(+60%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → Feb 1995
- 2Apache CorporationMar 1995 → Apr 1999
- 3Scythian, Ltd.May 1999 → Sep 2003
- 4Shenandoah Petroleum CorporationOct 2003 → Dec 2004
- 5Petrosource Production Co. L.P.Jan 2005 → Nov 2007
- 6Petrosource Production Co., LLCDec 2007 → Mar 2008
- 7Sandridge Tertiary, LLCApr 2008 → Jul 2012
- 8Trinity EOR, LLCAug 2012 → Nov 2013
- 9Scout Energy Management LLCDec 2013 → Feb 2022
- 10Winn Operating, LLCMar 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 215815-99 | Drill | Texaco Inc. | Sep 29, 1983 | Sep 29, 1983 | Nov 6, 1983 | 5,055 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 10, 1983 | South Mallet Unit O-11-67225 | Slaughter | Winn Operating LLC | Producing | 5,055 |
| Nov 10, 1983 | Mallet Land & Cattle Co. F O-11-17763 | Slaughter | Texaco E & P Inc. | Not on Schedule | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,006 | 5,043 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,315 | 12.25 | 1,100 S |
| 2.875 | 4,966 | — | — |
| 5.5 | 5,055 | 7.875 | 1,120 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 | Apr 7, 1994 | Dec 1, 1983 | — |
| 00 | Jan 12, 1984 | Dec 1, 1983 | — |
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 42-079-31824 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-079-31824 → 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/07931824, documented in the API reference.