WELL · 42-507-31731 · DISTRICT 1
Pryor Ranch #87
Zavala County · Winn-Dulce (Olmos) field · Vertical
Pryor Ranch #87 (API 42-507-31731) is a well in Zavala County operated by Winn Exploration/Dulce Company, completed February 20, 1989.
The RRC has issued 2 drilling permits between 1982 and 1989, permitted to 3,100 ft.
Completion filings report 6 formation tops, including Escondido, Olmos, Del Monte, Delmonte.
Its lease has reported 132K barrels of oil and 29.9K mcf of gas since January 1993, last reporting in July 2026. The lease carries 24 wells, so these are lease totals, not this well alone.
Operator of record
Winn Exploration/Dulce Company
Eagle Pass, TX · P-5 Y, filed Oct 9, 1991 · 293 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Winn Exploration/Dulce Company |
| Production reports | McDay Energy Corp.through Apr 2026 |
| Latest permit | Winn Exploration/Dulce CompanyAug 2, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,100
- total depth, ft
- 2
- permits on file
- Aug 2, 1989
- last permit issued
- Feb 20, 1989
- completed
- 132K
- cumulative oil, bbl
- 29.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 20, 1989
- 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 lease this well is completed on; they carry 24 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pryor Ranch O-1-8653 | Winn-Dulce (Bracero-Oil) | McDay Energy Corp. | 24 | 132K | 29.9K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 411 · prior 12 444(-7%)
Gas, mcf lease total
Last 12 months 1,320 · prior 12 768(+72%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Winn Exploration Co., Inc.Jan 1993 → Oct 1994
- 2McDay Energy Corp.Nov 1994 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 362144-99 | Recompletion | Winn Exploration/Dulce Company | Jul 31, 1989 | Aug 2, 1989 | — | 3,030 |
| 167905-99 | Drill | Winn Exploration/Dulce Company | Aug 2, 1982 | Aug 2, 1982 | — | 3,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-8653 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 676 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,582 | 2,590 | Perforated |
| 2,601 | 2,603 | Perforated |
| 2,612 | 2,614 | Perforated |
| 2,944 | 2,956 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 282 | 12.25 | 175 S |
| 2.375 | 2,558 | — | — |
| 4.5 | 3,086 | 7.875 | 760 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 | Oct 17, 1989 | Sep 25, 1989 | — |
| 00 | Oct 5, 1989 | — | — |
| 00 | Jul 6, 1989 | Mar 2, 1989 | — |
| 00 | Aug 4, 1988 | Jun 6, 1988 | — |
| 00 | Jan 12, 1984 | Oct 5, 1982 | — |
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 42-507-31731 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-31731 → 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/50731731, documented in the API reference.