WELL · 42-451-30522 · DISTRICT 7
Duff A.H. Estae B #1
Tom Green County · Dove Creek (Canyon -D-) field · Vertical
Duff A.H. Estae B #1 (API 42-451-30522) is a plugged well in Tom Green County, plugged September 15, 2022, last operated by Union Pacific Resources Company.
The RRC has issued one drilling permit, issued September 11, 1979, permitted to 7,000 ft.
It was permitted by Champlin Petroleum CO. and has since transferred to Union Pacific Resources Company on the wellbore schedule.
Completion filings report 6 formation tops, including San Angelo, Dean, Wolfcamp, Cisco.
Its 3 leases have reported 3.32K barrels of oil and 116K mcf of gas since January 1993, last reporting in October 2022. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Union Pacific Resources Company
Permitted by Champlin Petroleum Co.; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Feb 9, 2001 · 5,638 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Union Pacific Resources Company |
| Production reports | Trek Resources, Inc.through Oct 2020 |
| Latest permit | Champlin Petroleum Co.Sep 11, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 1
- permits on file
- Sep 11, 1979
- last permit issued
- Oct 18, 1979
- completed
- 3.32K
- cumulative oil, bbl
- 116K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2022
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 18, 1979
- Shut in
- —
- Plugged
- Sep 15, 2022
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duff, A. H. Estate 'B' G-9-282157 | Dove Creek (Canyon -D-) | Trek Resources, Inc. | 1 | 0 | 5.15K | Jan 2016 – Oct 2022 |
| Duff, A. H. Estate 'B' O-9-13226 | Dove Creek (Canyon -D-) | Trek Resources, Inc. | 1 | 3.32K | 111K | Jan 1993 – Jun 2017 |
| — G-9-84722 | — | — | 0 | 0 | 0 | — |
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.
- 1Union Pacific Resources CompanyJan 1993 → Sep 1995
- 2Montgomery Petroleum, Inc.Oct 1995 → Jul 2007
- 3MJM Oil & Gas, Inc.Jan 1996 → Nov 2001
- 4Trek Resources, Inc.Mar 2008 → Oct 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 57840-99 | Drill | Champlin Petroleum Co. | Sep 11, 1979 | Sep 11, 1979 | — | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-84722 | — | — | — | — |
| — | — G-9-282157 | — | — | — | — |
| — | — O-9-13226 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,494 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Angelo | 1,003 | 1,491 |
| Dean | 4,634 | -2,140 |
| Wolfcamp | 4,790 | -2,296 |
| Cisco | 5,564 | -3,070 |
| Canyon | 6,080 | -3,586 |
| Lignite Marker | 6,640 | -4,146 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,489 | 6,547 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 942 | 11.25 | 600 S |
| 8.625 | 942 | 12.25 | 600 S |
| 2.375 | 6,413 | — | — |
| 4.5 | 6,670 | 7.875 | 1,075 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 | Jun 2, 2017 | May 10, 2017 | Yes |
| 00 | Mar 10, 1992 | Feb 27, 1992 | — |
| 00 | Mar 4, 1992 | — | — |
| 00 | Jan 12, 1984 | Nov 1, 1979 | — |
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 42-451-30522 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-30522 → 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/45130522, documented in the API reference.