42-507-32323

Final Completion HorizontalSidetrack

GLASSCOCK RANCH A

ZAVALA County · District 1 · TRINITY OPERATING (USG) LLC · PEARSALL (AUSTIN CHALK)

Permits

Max Depth

7,000 ft

First Permit

1990-05-07

Latest Activity

1992-10-30

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1992-11-19

Shut-In

—

Plugged

2023-03-14

EWA / Production operator mismatch

Scheduling: TRINITY OPERATING (USG) LLC ≠ Production: MATADOR PRODUCTION COMPANY (reported 2021-07)

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

2024-05

Operator History

Chain of Custody

WINN EXPLORATION CO., INC. 1993-1994→ MCDAY ENERGY CORP. 1994-2010→ MATADOR PRODUCTION COMPANY 2011-2021

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 621 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
AUSTIN CHALK	6,035 ft	-5,414 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
6,324–9,347 ft	Perforated
6,324–10,820 ft	Perforated

Casing (2)

Size	Set Depth	Cement
10.75"	747 ft	493 sx
7"	5,800 ft	1,071 sx

Permit History (2)

#405502 Recompletion Final Completion

LETA GLASSCOCK · 6,400 ft

1992-10-30

Spud 1992-11-10

#373046 Drill Final Completion

GLASSCOCK, LETA · 7,000 ft

1990-05-07

Spud 1990-05-11

Applications (2)

#405502 A WINN EXPLORATION CO., INC.

received 1992-10-30

#373046 A WINN EXPLORATION CO., INC.

received 1990-05-07

Records & Logs

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

W-2/G-1 1993-06-29

W-2/G-1 1990-06-21 log on file

W-2/G-1 1990-07-19

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: 25
Max Depth: 7,000 ft
Drill Type: Horizontal, Sidetrack
County: ZAVALA
District: 1
Operator: TRINITY OPERATING (USG) LLC
Completed: 1992-11-19

Operator

Name: TRINITY OPER (USG), LLC
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