42-495-10005

ZACHARY ESTATE

WINKLER County · District 8 · MAS OPERATING CO.

Permits

2

Max Depth

5,280 ft

First Permit

1996-03-27

Latest Activity

2015-03-27

Lifespan

19 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 (14) Elevation 2,883 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER - POSSIBLE FLOW; POSSIBL (Rustler)725 ft+2,158 ft
YATES 2,500 ft+383 ft
COLBY-QUEEN3,200 ft-317 ft
GRAYBURG 3,350 ft-467 ft
QUEEN-SEVEN RIVERS (Queen)3,400 ft-517 ft
SAN ANDRES 3,700 ft-817 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)3,700 ft-817 ft
LOWER SAN ANDRES (San Andres)4,292 ft-1,409 ft
GLORIETA 4,772 ft-1,889 ft
HOLT 4,800 ft-1,917 ft
HOLT 5,105 ft-2,222 ft
CLEARFORK (Clear Fork)5,150 ft-2,267 ft
HOLT 5,150 ft-2,267 ft
DELAWARE

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
4,756–4,770 ftPerforated
5,150–5,280 ftPerforated

Casing (7)

SizeSet DepthCement
11.75"398 ft
11.75"416 ft350 sx
8.625"3,584 ft
8.625"3,600 ft1,340 sx
2.375"8,065 ft
4.5"8,280 ft
4.5"8,294 ft1,100 sx

Permit History (2)

Applications (2)

#804779 A MAS OPERATING CO.
received 2015-03-18
#446329 A DUDLEY OIL CO.
received 1996-03-26

Records & Logs

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

W-2/G-1 2015-10-07
W-2/G-1 2014-04-23
W-2/G-1 2014-04-23
W-2/G-1 1996-04-01 log on file
W-2/G-1 1996-04-25
W-2/G-1 1964-06-24
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 WINKLER County.

Well Details

Well Number
1
Max Depth
5,280 ft
Drill Type
Vertical
County
WINKLER
District
8

Operator

Location
MIDLAND
P-5 Status
Active (filed 2026-05-11)
Cum Oil (all leases)
1,009,133 bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/O
Total Permits
6