WELL · 42-237-34812 · DISTRICT 9
Duffy #1
Jack County · Post Oak (Conglomerate) field · Vertical
Duffy #1 (API 42-237-34812) is a well in Jack County operated by Taylor Oper. CO., completed May 16, 1984.
The RRC has issued 2 drilling permits between 1982 and 1996, permitted to 6,450 ft.
It was permitted by Taylor, G. E. and has since transferred to Taylor Oper. CO. on the wellbore schedule.
Completion filings report 5 formation tops, including Caddo, Atoka, Marble Falls, Barnett.
Its 2 leases have reported 14.8K barrels of oil and 55.3K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Taylor, G. E.; the EWA schedule now lists a different operator.
Bridgeport, TX · P-5 Y, filed Sep 15, 1988 · 264 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Taylor Oper. Co. |
| Production reports | Winfield Operating Companythrough Apr 2026 |
| Latest permit | Taylor, G. E.Jun 24, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,450
- total depth, ft
- 2
- permits on file
- Jun 24, 1996
- last permit issued
- May 16, 1984
- completed
- 14.8K
- cumulative oil, bbl
- 55.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 16, 1984
- Shut in
- —
- Plugged
- —
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duffy O-13-29162 | Post Oak, SW. (Marble Falls) | Winfield Operating Company | 1 | 12.2K | 45.6K | Jun 1996 – Jul 2026 |
| Duffy O-13-24866 | Post Oak (Conglomerate) | Taylor, G. E. | 1 | 2.67K | 9.64K | Jan 1993 – Jan 1997 |
Oil, barrels lease total
Last 12 months 259 · prior 12 188(+38%)
Gas, mcf lease total
Last 12 months 245 · prior 12 148(+66%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Taylor, G. E.Jan 1993 → Jan 2001
- 2Taylor, G. E. Inc.Feb 2001 → Jan 2007
- 3Winfield Operating CompanyFeb 2007 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 449209-99 | Recompletion | Taylor, G. E. | Jun 20, 1996 | Jun 24, 1996 | May 17, 1996 | 6,348 |
| 176041-99 | Drill | Taylor Oper. Co. | May 25, 1984 | Oct 29, 1982 | — | 6,450 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-24866 | — | — | — | — |
| — | — O-13-29162 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 965 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Caddo | 5,300 | -4,335 |
| AtokaATOKA CONGL | 5,494 | -4,529 |
| AtokaATOKA CONGLOMERATE | 5,494 | -4,529 |
| AtokaATOKA CONGLOMERATE | 5,570 | -4,605 |
| Marble Falls | 5,707 | -4,742 |
| Barnett | 5,894 | -4,929 |
| BarnettBARNETT SHALE | 5,894 | -4,929 |
| Ellenburger | 6,170 | -5,205 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,495 | 5,504 | Perforated |
| 5,570 | 5,576 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 320 | 12.25 | 250 sx |
| 4.5 | 5,848 | 7.875 | 182 sx |
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 | Aug 9, 1996 | Jun 17, 1996 | Yes |
| 00 | Jul 8, 1996 | — | — |
| 00 | Dec 12, 1984 | Nov 20, 1984 | — |
| 00 | Dec 1, 1984 | — | — |
| 00 | Jul 19, 1984 | May 24, 1984 | — |
| 00 | Jul 14, 1984 | May 24, 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 42-237-34812 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-237-34812 → 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/23734812, documented in the API reference.