42-507-31874

Final Completion

PRYOR RANCH

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

Permits

Max Depth

3,200 ft

First Permit

1982-12-14

Latest Activity

1989-02-15

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-08-21

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.

Oil

production & DCA →

Formation Tops (5) Elevation 635 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
ESCONDIDO	1,889 ft	-1,254 ft
OLMOS	2,496 ft	-1,861 ft
DEL MONTE	2,940 ft	-2,305 ft
BRACERO	2,991 ft	-2,356 ft
ELAINE	3,080 ft	-2,445 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 (4)

Interval	Type
2,594–2,597 ft	Perforated
2,614–2,621 ft	Perforated
3,002–3,023 ft	Perforated
3,095–3,103 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	200 ft	150 sx
2.375"	3,070 ft	—
4.5"	3,200 ft	770 sx

Permit History (3)

#355947 Recompletion Final Completion

PRYOR RANCH · 3,068 ft

1989-02-15

#284709 Recompletion Final Completion

PRYOR RANCH · 3,200 ft

1985-09-10

#180477 Drill Final Completion

PRYOR RANCH · 3,200 ft

1982-12-14

Applications (3)

#355947 A WINN EXPLORATION/DULCE COMPANY

received 1989-02-10

#284709 A WINN EXPLORATION/DULCE COMPANY

received 1985-08-13

#180477 A WINN EXPLORATION/DULCE COMPANY

received 1982-12-14

Records & Logs

5 completion filings on record · 1 with log images at RRC.

W-2/G-1 1989-03-13 log on file

W-2/G-1 1989-04-06

W-2/G-1 1985-08-30

W-2/G-1 1985-10-01

W-2/G-1 1983-02-24

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: 161
Max Depth: 3,200 ft
Drill Type: Vertical
County: ZAVALA
District: 1
Operator: WINN EXPLORATION/DULCE COMPANY
Completed: 1985-08-21

Operator

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