WELL · 42-507-32478 · DISTRICT 1
Buchanan Unit #1
Zavala County · Pearsall (Austin Chalk) field · Horizontal
Buchanan Unit #1 (API 42-507-32478) is a plugged horizontal well in Zavala County, plugged December 5, 1995, last operated by Mcdaniel Company Inc. The.
The RRC has issued 2 drilling permits (amended once) between 1993 and 2007, permitted to 7,000 ft.
It was permitted by Texas American Resources Company and has since transferred to Mcdaniel Company Inc. The on the wellbore schedule.
Completion filings report 3 formation tops, including 1st Lime, Anacacho, Austin Chalk.
Its 2 leases have reported 46.1K barrels of oil and 39.8K mcf of gas since July 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 Texas American Resources Company; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Mar 4, 2026 · 6 permits on file · (972) 392-9335
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | McDaniel Company Inc. The |
| Production reports | Trinity Operating (Usg), LLCthrough Sep 2019 |
| Latest permit | Texas American Resources CompanyJan 24, 2007 |
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
- 3
- permits on file
- Jan 24, 2007
- last permit issued
- Jul 24, 1993
- completed
- 46.1K
- cumulative oil, bbl
- 39.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 24, 1993
- Shut in
- —
- Plugged
- Dec 5, 1995
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 |
|---|---|---|---|---|---|---|
| Buchanan -B- Unit O-1-14838 | Pearsall (Austin Chalk) | Flint Oak Energy, LLC | 1 | 44.7K | 38.6K | Mar 2007 – Jul 2026 |
| Buchanan Unit O-1-13779 | Pearsall (Austin Chalk) | McDaniel Company, Inc., The | 1 | 1.43K | 1.21K | Jul 1993 – Dec 1995 |
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.
- 1Oryx Energy CompanyJul 1993 → Jan 1994
- 2Texas American Resources CompanyMar 2007 → Mar 2017
- 3Trinity Operating (Usg), LLCFeb 2018 → Sep 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 632253-98 | Reenter | Texas American Resources Company | Aug 8, 2007 | Jan 24, 2007 | Jan 20, 2007 | 6,479 |
| 632253-99 | Reenter | Texas American Resources Company | Jan 22, 2007 | Jan 24, 2007 | — | 7,000 |
| 411448-99 | Drill | Oryx Energy Company | May 6, 1993 | May 6, 1993 | Jul 2, 1993 | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-13779 | — | — | — | — |
| — | — O-1-14838 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 556 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 1ST Lime | 5,463 | -4,907 |
| Anacacho | 5,598 | -5,042 |
| Austin Chalk | 5,917 | -5,361 |
| Austin Chalk | 5,935 | -5,379 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,935 | 8,098 | Perforated |
| 5,935 | 11,000 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.875 | 793 | 14.75 | 475 S |
| 10.75 | 793 | 14.75 | — |
| 7 | 5,935 | 9.875 | 1,030 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 | Aug 31, 2007 | May 18, 2007 | Yes |
| 00 | Aug 29, 2007 | — | — |
| 00 | Oct 11, 1993 | Aug 6, 1993 | Yes |
| 00 | Sep 30, 1993 | — | — |
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 42-507-32478 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-32478 → 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/50732478, documented in the API reference.