42-507-31759

Final Completion

PRYOR RANCH

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

Permits

Max Depth

3,110 ft

First Permit

1982-09-13

Latest Activity

1984-10-18

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1982-11-11

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 (5) Elevation 676 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
ESCONDIDO	1,870 ft	-1,194 ft
OLMOS	2,490 ft	-1,814 ft
DEL MONTE	2,860 ft	-2,184 ft
BRACERO	2,920 ft	-2,244 ft
ELAINE	2,992 ft	-2,316 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
2,867–2,876 ft	Perforated
2,992–3,001 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	201 ft	175 sx
2.375"	2,964 ft	—
4.5"	3,089 ft	725 sx

Permit History (2)

#255285 Recompletion Final Completion

PRYOR RANCH · 3,110 ft

1984-10-18

#171821 Drill Final Completion

PRYOR RANCH · 3,110 ft

1982-09-13

Applications (2)

#255285 A WINN EXPLORATION/DULCE COMPANY

received 1984-10-16

#171821 A WINN EXPLORATION/DULCE COMPANY

received 1982-09-13

Records & Logs

3 completion filings on record.

W-2/G-1 1984-10-29

W-2/G-1 1984-11-09

W-2/G-1 1983-03-02

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: 103
Max Depth: 3,110 ft
Drill Type: Vertical
County: ZAVALA
District: 1
Operator: MCDAY ENERGY CORP.
Completed: 1982-11-11

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