TEXAS · WELLS · SCHLEICHER COUNTY · API 42-413-30863 · DISTRICT 6E
Duff A.H. Estate A #4
Schleicher County · Dove Creek (Canyon Consolidated) field · Producing · Vertical
Duff A.H. Estate A #4 (API 42-413-30863) is a well in Schleicher County operated by Trek Resources Inc., completed March 1, 1980 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 14, 1979, permitted to 6,820 ft.
It was permitted by Champlin Petroleum CO. and has since transferred to Trek Resources Inc. on the wellbore schedule.
Its 2 leases have reported 86.7K barrels of oil and 2.12M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 17 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Champlin Petroleum Co.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Jun 17, 2025
- Permits on file
- 77
- Phone
- (214) 373-0318
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Trek Resources Inc. |
| Production reports | Trek Resources, Inc.through Apr 2026 |
| Latest permit | Champlin Petroleum Co.Dec 14, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,820
- total depth, ft
- 1
- permits on file
- Dec 14, 1979
- last permit issued
- Mar 1, 1980
- completed
- 86.7K
- cumulative oil, bbl
- 2.12M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 1, 1980
- 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 2 leases this well is completed on; they carry 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duff, A. H. Estate "A" O-9-8045 | Dove Creek (Canyon -D-) | Trek Resources, Inc. | 9 | 86.7K | 2.12M | Jan 1993 – Apr 2026 |
| Duff, A.H. Estate"a" O-9-23602 | Dove Creek (Canyon Consolidated) | Trek Resources, Inc. | 8 | 0 | 0 | Mar 2026 – — |
Gas, mcf lease total
Last 12 months 15,730 · prior 12 18,310(-14%)
Oil, barrels lease total
Last 12 months 471 · prior 12 906(-48%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Pacific Resources CompanyJan 1993 → Sep 1995
- 2Montgomery Petroleum, Inc.Oct 1995 → Aug 2007
- 3MJM Oil & Gas, Inc.Jan 1996 → Nov 2001
- 4Trek Resources, Inc.Sep 2007 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 66840-99 | Drill | Champlin Petroleum Co. | Dec 14, 1979 | Dec 14, 1979 | Feb 7, 1980 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 1, 1980 | Duff A.H. Estate A O-9-23602 | Dove Creek (Canyon Consolidated) | Trek Resources Inc. | Producing | 6,820 |
| Mar 1, 1980 | Duff A. H. Estate A O-9-8045 | Dove Creek (Canyon -D-) | Trek Resources Inc. | Not on Schedule | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,561 | 6,679 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 950 | 12.25 | 600 S |
| 2.375 | 6,424 | — | — |
| 4.5 | 6,819 | 7.875 | 1,350 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 19, 2026 | Mar 4, 1980 | — |
| 00 | Jan 12, 1984 | Mar 4, 1980 | — |
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 42-413-30863 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-413-30863 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/41330863, documented in the API reference.