42-507-31891

Final Completion

PRYOR RANCH

ZAVALA County · District 1 · MCDAY ENERGY CORP. · WINN-DULCE (BRACERO-OIL)

Permits

Max Depth

3,325 ft

First Permit

1983-01-17

Latest Activity

1988-05-05

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1983-02-22

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: MCDAY ENERGY CORP. ≠ Permit: WINN EXPLORATION/DULCE COMPANY

Resolved via: scheduling → 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. 1994-2022

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 (4) Elevation 626 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
OLMOS	2,520 ft	-1,894 ft
DEL MONTE	3,018 ft	-2,392 ft
BRACERO	3,084 ft	-2,458 ft
ELAINE	3,183 ft	-2,557 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 (2)

Interval	Type
3,020–3,028 ft	Perforated
3,089–3,122 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	201 ft	150 sx
2.375"	3,139 ft	—
4.5"	3,303 ft	740 sx

Permit History (2)

#346028 Recompletion Final Completion

PRYOR RANCH · 3,070 ft

1988-05-05

#183445 Drill Final Completion

PRYOR RANCH · 3,325 ft

1983-01-17

Applications (2)

#346028 A WINN EXPLORATION/DULCE COMPANY

received 1988-05-03

#183445 A WINN EXPLORATION/DULCE COMPANY

received 1983-01-17

Records & Logs

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

W-2/G-1 1988-05-04 log on file

W-2/G-1 1988-05-12

W-2/G-1 1983-06-06

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: 167
Max Depth: 3,325 ft
Drill Type: Vertical
County: ZAVALA
District: 1
Operator: MCDAY ENERGY CORP.
Completed: 1983-02-22

Operator

Name: MCDAY ENGY CORP
Location: PLANO
P-5 Status: X (filed 2026-06-02)
Cum Oil (all leases): 1,564,984 bbl
Cum Gas (all leases): 1,473,807 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 52