42-293-30950

Final Completion

JEFF THOMAS GAS UNIT NO. 1

LIMESTONE County · District 5 · XTO ENERGY INC.

Permits

Max Depth

9,900 ft

First Permit

1991-04-01

Latest Activity

2004-02-09

Lifespan

13 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

Operator History

Chain of Custody

HERD PRODUCING COMPANY, INC. 1993-2000→ CROSS TIMBERS OPERATING COMPANY 2001-2001→ XTO ENERGY INC. 2001-2023→ HILCORP ENERGY COMPANY 2024-2025

Lease Production

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

Formation Tops (7) Elevation 436 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
BMA	7,748 ft	-7,312 ft
MASSIVE ANHYDRITE (Massive Anhydrite (marker))	7,748 ft	-7,312 ft
RODESSA	7,872 ft	-7,436 ft
BEXAR	8,212 ft	-7,776 ft
JAMES LIME	8,335 ft	-7,899 ft
PETTIT	8,530 ft	-8,094 ft
TRAVIS PEAK	8,873 ft	-8,437 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 (5)

Interval	Type
8,601–8,693 ft	Perforated
8,950–8,958 ft	Perforated
8,950–9,182 ft	Perforated
8,995–8,996 ft	Perforated
9,002–9,007 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,188 ft	320 sx
4.5"	9,825 ft	1,028 sx

Permit History (3)

#541664 Recompletion Final Completion

JEFF THOMAS GAS UNIT NO. 1 · 9,900 ft

2004-02-09

Spud 2004-04-06

#422287 Recompletion

JEFF THOMAS GAS UNIT NO. 1 · 9,819 ft

1994-03-22

#386246 Drill Final Completion

JEFF THOMAS GAS UNIT NO. 1 · 9,900 ft

1991-04-01

Spud 1991-04-13

Applications (3)

#541664 A XTO ENERGY INC.

received 2004-02-04

#422287 A HERD PRODUCING COMPANY, INC.

received 1994-03-22

#386246 A HERD PRODUCING COMPANY, INC.

received 1991-04-01

Records & Logs

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

W-2/G-1 2004-06-21

W-2/G-1 2004-08-10

W-2/G-1 1991-07-03 log on file

W-2/G-1 1991-08-23

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 LIMESTONE County.

Well Details

Well Number: 1
Max Depth: 9,900 ft
Drill Type: Vertical
County: LIMESTONE
District: 5
Operator: XTO ENERGY INC.

Operator

Name: XTO ENGY INC
Location: SPRING
P-5 Status: X (filed 2026-04-08)
Cum Oil (all leases): 772,419,164 bbl
Cum Gas (all leases): 11,039,899,986 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 16,139