42-507-31831

PRYOR RANCH

ZAVALA County · District 1 · MCDAY ENERGY CORP.

Permits

3

Max Depth

9,000 ft

First Permit

1982-11-24

Latest Activity

2010-01-28

Lifespan

27 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (5) Elevation 664 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ESCONDIDO 1,831 ft-1,167 ft
OLMOS 2,484 ft-1,820 ft
DEL MONTE2,870 ft-2,206 ft
BRACERO2,933 ft-2,269 ft
ELAINE2,996 ft-2,332 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)

IntervalType
2,763–2,767 ftPerforated
2,944–2,952 ftPerforated

Casing (3)

SizeSet DepthCement
8.625"241 ft170 sx
2.375"2,784 ft
4.5"3,087 ft735 sx

Permit History (3)

Applications (3)

#690027 A MCDAY ENERGY CORP.
received 2010-01-20
#283968 A WINN EXPLORATION/DULCE COMPANY
received 1985-08-29
#178341 Withdrawn WINN EXPLORATION/DULCE COMPANY
received 1982-11-24

Records & Logs

3 completion filings on record.

W-2/G-1 1985-09-25
W-2/G-1 1985-10-03
W-2/G-1 1983-07-08

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
143
Max Depth
9,000 ft
Drill Type
Vertical
County
ZAVALA
District
1

Operator

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