TEXAS · WELLS · ZAVALA COUNTY · PRYOR RANCH LEASE · API 42-507-31943 · DISTRICT 01
Pryor Ranch #171
Zavala County · Winn-Dulce (del Monte-Oil) field · Producing · Vertical
Pryor Ranch #171 (API 42-507-31943) is a well in Zavala County operated by Mcday Energy Corp., completed April 28, 1983 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 24, 1983, permitted to 3,120 ft.
It was permitted by Winn Exploration/Dulce Company and has since transferred to Mcday Energy Corp. on the wellbore schedule.
Its lease has reported 51.2K barrels of oil and 1.78K mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 17 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Winn Exploration/Dulce Company; the EWA schedule now lists a different operator.
- Based in
- Plano, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 52
- Phone
- (214) 369-3818
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | McDay Energy Corp. |
| Production reports | McDay Energy Corp.through Sep 2022 |
| Latest permit | Winn Exploration/Dulce CompanyMar 24, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,120
- total depth, ft
- 1
- permits on file
- Mar 24, 1983
- last permit issued
- Apr 28, 1983
- completed
- 51.2K
- cumulative oil, bbl
- 1.78K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Sep 2022
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 28, 1983
- 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 lease 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 |
|---|---|---|---|---|---|---|
| Pryor Ranch O-1-8655 | Winn-Dulce (del Monte-Oil) | McDay Energy Corp. | 17 | 51.2K | 1.78K | Jan 1993 – Sep 2022 |
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.
- 1Winn Exploration Co., Inc.Jan 1993 → Oct 1994
- 2McDay Energy Corp.Nov 1994 → Sep 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 191746-99 | Drill | Winn Exploration/Dulce Company | Mar 24, 1983 | Mar 24, 1983 | — | 3,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 28, 1983 | Pryor Ranch O-1-8655 | Winn-Dulce (del Monte-Oil) | McDay Energy Corp. | Producing | 3,120 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,894 | 2,902 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 202 | 12.25 | 145 S |
| 2.375 | 2,927 | — | — |
| 4.5 | 3,120 | 7.875 | 730 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 | Jan 12, 1984 | Aug 11, 1983 | — |
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 42-507-31943 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-31943 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/50731943, documented in the API reference.