42-507-31731

Final Completion

PRYOR RANCH

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

Permits

Max Depth

3,100 ft

First Permit

1982-08-02

Latest Activity

1989-08-02

Lifespan

7 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1989-02-20

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 (6) Elevation 676 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
ESCONDIDO	1,870 ft	-1,194 ft
OLMOS	2,489 ft	-1,813 ft
DEL MONTE	2,863 ft	-2,187 ft
DELMONTE	2,863 ft	-2,187 ft
BRACERO	2,920 ft	-2,244 ft
ELAINE	2,993 ft	-2,317 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
2,582–2,590 ft	Perforated
2,601–2,603 ft	Perforated
2,612–2,614 ft	Perforated
2,944–2,956 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	282 ft	175 sx
2.375"	2,558 ft	—
4.5"	3,086 ft	760 sx

Permit History (2)

#362144 Recompletion Final Completion

PRYOR RANCH · 3,030 ft

1989-08-02

#167905 Drill Final Completion

PRYOR RANCH · 3,100 ft

1982-08-02

Applications (2)

#362144 A WINN EXPLORATION/DULCE COMPANY

received 1989-07-31

#167905 A WINN EXPLORATION/DULCE COMPANY

received 1982-08-02

Records & Logs

5 completion filings on record.

W-2/G-1 1989-09-25

W-2/G-1 1989-10-05

W-2/G-1 1989-03-02

W-2/G-1 1988-06-06

W-2/G-1 1982-10-05

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: 87
Max Depth: 3,100 ft
Drill Type: Vertical
County: ZAVALA
District: 1
Operator: WINN EXPLORATION/DULCE COMPANY
Completed: 1989-02-20

Operator

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