WELL · 42-423-31263 · DISTRICT 6
Darby #1
Smith County · MBT (Paluxy) field · Vertical
Darby #1 (API 42-423-31263) is a plugged well in Smith County, plugged May 29, 2006, last operated by Thomas Operating Ltd. CO..
The RRC has issued one drilling permit, issued May 14, 1990, 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 5 formation tops, including Austin Chalk, Woodbine, Goodland, Paluxy.
Its lease has reported 11.9K barrels of oil and 540 mcf of gas since January 1993, last reporting in August 2006.
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 Oct 2004 |
| Latest permit | Thomas, B. K.May 14, 1990 |
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
- 1
- permits on file
- May 14, 1990
- last permit issued
- Jul 23, 1990
- completed
- 11.9K
- cumulative oil, bbl
- 540
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2006
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 23, 1990
- Shut in
- —
- Plugged
- May 29, 2006
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 |
|---|---|---|---|---|---|---|
| Darby O-6-12743 | MBT (Paluxy) | Thomas Operating Ltd. Co. | 1 | 11.9K | 540 | Jan 1993 – Aug 2006 |
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.Jan 1993 → Nov 1997
- 2Thomas Operating Ltd. Co.Dec 1997 → Oct 2004
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 373149-99 | Drill | Thomas, B. K. | May 10, 1990 | May 14, 1990 | — | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-6-12743 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 484 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 4,640 | -4,156 |
| Woodbine | 4,854 | -4,370 |
| Goodland | 7,160 | -6,676 |
| Paluxy | 7,248 | -6,764 |
| Glen RoseGLENROSE | 7,600 | -7,116 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,248 | 7,254 | Perforated |
| 7,259 | 7,265 | Perforated |
| 7,274 | 7,280 | Perforated |
| 7,284 | 7,290 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,716 | 11 | 521 S |
| 5.5 | 7,640 | 7.875 | 740 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 19, 1990 | Jul 27, 1990 | Yes |
| 00 | Nov 9, 1990 | — | — |
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 42-423-31263 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-423-31263 → 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/42331263, documented in the API reference.