WELL · 42-423-31424 · DISTRICT 6
Cobb #2
Smith County · Chapel Hill (Paluxy 5800) field · Vertical
Cobb #2 (API 42-423-31424) is a plugged well in Smith County, plugged October 4, 2011, last operated by Thomas Operating Ltd. CO..
The RRC has issued 2 drilling permits (amended once) between 1994 and 1995, permitted to 7,800 ft.
It was permitted by Thomas, B. K. and has since transferred to Thomas Operating Ltd. CO. on the wellbore schedule.
Completion filings report 4 formation tops, including Pecan Gap, Austin Chalk, Woodbine, Paluxy.
Its 3 leases have reported 420 barrels of oil and 110K mcf of gas since June 1994, last reporting in March 2012. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Thomas, B. K.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Sep 4, 2025 · 8 permits on file · (214) 708-3047
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Thomas Operating Ltd. Co. |
| Production reports | Thomas Operating Ltd. Co.through Sep 2011 |
| Latest permit | Thomas, B. K.Oct 26, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,800
- total depth, ft
- 3
- permits on file
- Oct 26, 1995
- last permit issued
- —
- completed
- 420
- cumulative oil, bbl
- 110K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 1994 THROUGH Mar 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- Oct 4, 2011
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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cobb G-6-183814 | Chapel Hill (Paluxy 5800) | Thomas Operating Ltd. Co. | 1 | 0 | 35.2K | Aug 2001 – Mar 2012 |
| Cobb O-6-13703 | Chapel Hill (Paluxy 5800) | Thomas Operating Ltd. Co. | 1 | 420 | 23K | Sep 1997 – Jan 2006 |
| Cobb G-6-150418 | Chapel Hill (Paluxy 5800) | Thomas, B. K. | 1 | 0 | 52.1K | Jun 1994 – Sep 1997 |
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.
- 1Thomas, B. K.Jun 1994 → Nov 1997
- 2Thomas Operating Ltd. Co.Oct 1998 → Sep 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 441267-98 | Recompletion | Thomas, B. K. | Jun 13, 1997 | Oct 26, 1995 | Jun 26, 1997 | 5,933 |
| 441267-99 | Recompletion | Thomas, B. K. | Oct 25, 1995 | Oct 26, 1995 | — | 5,953 |
| 423492-99 | Drill | Thomas, B. K. | May 2, 1994 | May 5, 1994 | May 24, 1994 | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-6-150418 | — | — | — | — |
| — | — G-6-183814 | — | — | — | — |
| — | — O-6-13703 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 400 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 2,774 | -2,374 |
| Austin Chalk | 3,682 | -3,282 |
| Woodbine | 3,905 | -3,505 |
| Paluxy | 5,526 | -5,126 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,766 | 5,774 | Perforated |
| 5,768 | 5,774 | Perforated |
| 5,770 | 5,774 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,225 | 11 | 293 S |
| 5.5 | 5,953 | 7.875 | 500 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 | Sep 19, 2001 | Aug 8, 2001 | — |
| 00 | Aug 23, 2001 | — | — |
| 00 | Dec 3, 1997 | Oct 2, 1997 | — |
| 00 | Oct 27, 1997 | — | — |
| 00 | Aug 25, 1994 | Jun 16, 1994 | Yes |
| 00 | Aug 11, 1994 | — | — |
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 42-423-31424 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-423-31424 → 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/42331424, documented in the API reference.