WELL · 42-079-31540 · DISTRICT 8
Mallet Ranch #1
Cochran County · Levelland (San Andres) field · Producing · Vertical
Mallet Ranch #1 (API 42-079-31540) is a well in Cochran County operated by D C Oil Company Inc., completed June 10, 1982 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1982 and 1983, permitted to 4,972 ft.
It was permitted by Winchester Energy Company and has since transferred to D C Oil Company Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including San Andres, Marker, Porosity Marker.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Winchester Energy Company; the EWA schedule now lists a different operator.
- Based in
- Sundown, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 7, 2026
- Phone
- (806) 535-4812
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | D C Oil Company, Inc.through Apr 2026 |
| Latest permit | Winchester Energy CompanyMay 12, 1983 |
- 4,972
- total depth, ft
- 2
- permits on file
- May 12, 1983
- last permit issued
- Jun 10, 1982
- completed
- 0
- cumulative oil, bbl
- 140K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 10, 1982
- 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 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 |
|---|---|---|---|---|---|---|
| Mallet Ranch G-11-111148 | Levelland (San Andres) | D C Oil Company, Inc. | 1 | 0 | 140K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 58 · prior 12 63(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Fuller Operating CompanyJan 1993 → May 1995
- 2D C Oil Company, Inc.Jun 1995 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 194565-99 | Recompletion | Winchester Energy Company | May 12, 1983 | May 12, 1983 | — | 5,100 |
| 154439-99 | Drill | Winchester Energy Company | Jan 2, 1985 | Mar 24, 1982 | — | 4,972 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 10, 1982 | Mallet Ranch G-11-111148 | Levelland (San Andres) | D C Oil Company Inc. | Producing | 4,972 |
| Jun 16, 1982 | Mallet Ranch O-11-63973 | Slaughter | D C Oil Company Inc. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,656 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,882 | -1,226 |
| San AndresSAN ANDRES POROSITY | 4,882 | -1,226 |
| Marker | 4,926 | -1,270 |
| Porosity Marker | 4,926 | -1,270 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,882 | 4,912 | Perforated |
| 4,882 | 4,948 | Perforated |
| 4,938 | 4,948 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 456 | 12.25 | 300 S |
| 2.375 | 4,969 | — | — |
| 5.5 | 4,972 | 7.875 | 1,400 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 | Feb 12, 1985 | Oct 12, 1984 | — |
| 00 | Aug 20, 1984 | May 31, 1984 | — |
| 00 | Aug 9, 1984 | May 31, 1984 | — |
| 00 | Jan 12, 1984 | Jul 19, 1982 | — |
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 42-079-31540 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-079-31540 → 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/07931540, documented in the API reference.