42-507-31322

Final Completion

PRYOR RANCH

ZAVALA County · District 1 · WINN EXPLORATION/DULCE COMPANY · WINN-DULCE (OLMOS)

Permits

Max Depth

3,500 ft

First Permit

1980-03-04

Latest Activity

1985-06-05

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1980-03-27

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: WINN EXPLORATION/DULCE COMPANY ≠ Production: MCDAY ENERGY CORP. (reported 2026-04)

Resolved via: production → MCDAY ENERGY CORP.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

WINN EXPLORATION CO., INC. 1993-1994→ MCDAY ENERGY CORP. 1994-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Gas

production & DCA →

Formation Tops (5) Elevation 682 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
ESCONDIDO	1,647 ft	-965 ft
OLMOS	2,189 ft	-1,507 ft
DEL MONTE	2,560 ft	-1,878 ft
BRACERO	2,610 ft	-1,928 ft
ELAINE	2,660 ft	-1,978 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (3)

Interval	Type
2,264–2,276 ft	Perforated
2,562–2,568 ft	Perforated
2,620–2,630 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	262 ft	160 sx
2.375"	2,570 ft	—
4.5"	2,700 ft	630 sx

Permit History (2)

#276968 Recompletion Final Completion

PRYOR RANCH · 2,770 ft

1985-06-05

#74115 Drill Final Completion

PRYOR RANCH · 3,500 ft

1980-03-04

Applications (2)

#276968 A WINN EXPLORATION/DULCE COMPANY

received 1985-06-04

#74115 A DULCE CO., THE

received 1980-03-04

Records & Logs

4 completion filings on record.

W-2/G-1 1985-06-10

W-2/G-1 1985-06-19

W-2/G-1 1980-05-16

W-2/G-1 1980-05-01

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in ZAVALA County.

Well Details

Well Number: 40
Max Depth: 3,500 ft
Drill Type: Vertical
County: ZAVALA
District: 1
Operator: WINN EXPLORATION/DULCE COMPANY
Completed: 1980-03-27

Operator

Name: WINN EXPL/DULCE CO
Location: EAGLE PASS
P-5 Status: Inactive (filed 1990-11-02)
Total Permits: 293