← Wells

42-507-32430

SHUT IN

GLASSCOCK LETA

ZAVALA County · District 1 · TRINITY OPERATING (USG) LLC · LETA (OLMOS)

Permits

1

Max Depth

4,900 ft

First Permit

1991-10-21

Latest Activity

1991-10-21

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

—

Shut-In

—

Plugged

—

P-5 Org Status: Active

!

EWA / Production operator mismatch

Scheduling: TRINITY OPERATING (USG) LLC ≠ Production: MATADOR PRODUCTION COMPANY (reported 2011-08)

!

EWA / Permit operator mismatch

Scheduling: TRINITY OPERATING (USG) LLC ≠ Permit: WINN EXPLORATION CO., INC.

Resolved via: scheduling → TRINITY OPERATING (USG) LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000075985 permitted 1991-11-22

Permitted Volume

2,200 bbl/d

Max Pressure

2,200 psi

Injection Interval

4,432–4,667 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2026-03-01)

Operator History

Chain of Custody

WINN EXPLORATION CO., INC. 1994-1994→ MCDAY ENERGY CORP. 1994-2010→ MATADOR PRODUCTION COMPANY 2011-2011

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 (1) Elevation 647 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
OLMOS 4,510 ft-3,863 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 (1)

IntervalType
4,510–4,638 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"3,068 ft895 sx
5.5"4,803 ft630 sx

Permit History (1)

#393109 Drill Final Completion

GLASSCOCK, LETA · 4,900 ft

1991-10-21

Spud 1991-11-21

Applications (1)

#393109 A WINN EXPLORATION CO., INC.
received 1991-10-21

Records & Logs

2 completion filings on record.

W-2/G-1 1992-01-31
W-2/G-1 1992-02-13
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
1D
Max Depth
4,900 ft
Drill Type
Vertical
County
ZAVALA
District
1
Operator
TRINITY OPERATING (USG) LLC

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-01-28)
Cum Oil (all leases)
22,515,031 bbl
Cum Gas (all leases)
284,930,581 mcf
Activities
OPRS/G, OPRS/O
Total Permits
391