WELL · 42-507-31198 · DISTRICT 1
Pryor Ranch #15
Zavala County · Winn-Dulce (del Monte) field · Vertical
Pryor Ranch #15 (API 42-507-31198) is a well in Zavala County operated by Mcday Energy Corp., completed July 19, 1979.
The RRC has issued one drilling permit, issued July 18, 1979, permitted to 3,500 ft.
It was permitted by Sundown Drilling CO. and has since transferred to Mcday Energy Corp. on the wellbore schedule.
Completion filings report 5 formation tops, including Escondido, Olmos, Del Monte, Bracero.
Its 3 leases have reported 1.07K barrels of oil and 426 mcf of gas since January 1993, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sundown Drilling Co.; the EWA schedule now lists a different operator.
Plano, TX · P-5 Y, filed Apr 4, 2026 · 52 permits on file · (214) 202-1064
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | McDay Energy Corp. |
| Production reports | McDay Energy Corp.through Apr 2026 |
| Latest permit | Sundown Drilling Co.Jul 18, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,500
- total depth, ft
- 1
- permits on file
- Jul 18, 1979
- last permit issued
- Jul 19, 1979
- completed
- 1.07K
- cumulative oil, bbl
- 426
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 19, 1979
- 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 3 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Pryor Ranch G-1-94334 | Winn-Dulce (Olmos) | McDay Energy Corp. | 1 | 0 | 256 | Jan 1993 – Jul 2026 |
| Pryor Ranch O-1-14868 | Winn-Dulce (del Monte) | McDay Energy Corp. | 2 | 1.07K | 170 | Sep 2007 – Jul 2026 |
| Pryor Ranch G-1-94321 | Winn-Dulce (del Monte) | McDay Energy Corp. | 1 | 0 | 0 | Jan 1993 – Sep 2007 |
Oil, barrels lease total
Last 12 months 14 · prior 12 12(+17%)
Gas, mcf lease total
Last 12 months 87 · prior 12 83(+5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1McDay Energy Corp.Jan 1996 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 53171-99 | Drill | Sundown Drilling Co. | Jul 18, 1979 | Jul 18, 1979 | Jul 9, 1979 | 3,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-94321 | — | — | — | — |
| — | — G-1-94334 | — | — | — | — |
| — | — O-1-14868 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 689 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,620 | 2,626 | Perforated |
| 2,842 | 2,852 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 276 | 12.25 | 150 S |
| 2.375 | 2,805 | — | — |
| 4.5 | 3,040 | 7.875 | 660 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 | Jan 10, 2008 | Nov 5, 2007 | — |
| 00 | Dec 10, 2007 | — | — |
| 00 | Jan 12, 1984 | Jul 27, 1981 | — |
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 42-507-31198 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-31198 → 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/50731198, documented in the API reference.