WELL · 42-041-31059 · DISTRICT 3
Cobb Unit 4 #1
Brazos County · Iola South (Sub-Clarksville) field · Vertical
Cobb Unit 4 #1 (API 42-041-31059) is a plugged well in Brazos County, plugged August 3, 1996, last operated by D.J. Oilfield Salvage Inc..
The RRC has issued one drilling permit, issued December 2, 1983, permitted to 9,200 ft.
It was permitted by L & B Oil CO. Inc. and has since transferred to D.J. Oilfield Salvage Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Austin Chalk, Sub-Clarksville, Woodbine.
Its lease has reported 37 barrels of oil and 12 mcf of gas since January 1993, last reporting in August 1996. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by L & B Oil Co. Inc.; the EWA schedule now lists a different operator.
West Point, TX · P-5 Y, filed Mar 5, 2004
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | D.J. Oilfield Salvage Inc. |
| Production reports | Vintage Petroleum, Inc.through Mar 1993 |
| Latest permit | L & B Oil Co. Inc.Dec 2, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,200
- total depth, ft
- 1
- permits on file
- Dec 2, 1983
- last permit issued
- Jan 5, 1984
- completed
- 37
- cumulative oil, bbl
- 12
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 1996
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 5, 1984
- Shut in
- —
- Plugged
- Aug 3, 1996
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cobb Unit 4 O-3-17191 | Iola, South (Sub-Clarksville) | D.J. Oilfield Salvage Inc. | 2 | 37 | 12 | Jan 1993 – Aug 1996 |
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.
- 1Vintage Petroleum, Inc.Mar 1993 → Mar 1993
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 222486-99 | Drill | L & B Oil Co. Inc. | Dec 2, 1983 | Dec 2, 1983 | — | 9,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-17191 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Austin Chalk | 8,606 |
| Sub-Clarksville | 9,021 |
| Woodbine | 9,062 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,049 | 9,058 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,418 | 13.5 | 1,000 S |
| 5.5 | 9,220 | 8.75 | 325 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 31, 1984 | Jan 10, 1984 | — |
| 00 | Jan 25, 1984 | Jan 10, 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 42-041-31059 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-041-31059 → 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/04131059, documented in the API reference.