42-427-01311

Final Completion

THOMAS-RIFE GAS UNIT

STARR County · District 4 · SHELL WESTERN E&P INC.

Permits

Max Depth

9,102 ft

First Permit

1978-11-09

Latest Activity

1986-06-03

Lifespan

8 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

SHELL WESTERN E&P INC. 1993-2000→ SHELL WESTERN E&P 2000-2011→ OXY USA INC. 2011-2017→ MERIT ENERGY COMPANY 2018-2026

Lease Production

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

Formation Tops (8) Elevation 446 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
FRIO	2,000 ft	-1,554 ft
VICKSBURG	5,040 ft	-4,594 ft
VICKSBURG 6300 (Vicksburg)	6,347 ft	-5,901 ft
VICKSBURG 6600 (Vicksburg)	6,595 ft	-6,149 ft
VICKSBURG 6760 (Vicksburg)	6,780 ft	-6,334 ft
VICKSBURG 7050 (Vicksburg)	6,984 ft	-6,538 ft
VICKSBURG 7900 (Vicksburg)	7,913 ft	-7,467 ft
YEGUA	8,994 ft	-8,548 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
6,349–6,380 ft	Perforated
6,638–6,714 ft	Perforated
6,780–6,729 ft	Perforated
6,820–6,828 ft	Perforated
6,986–7,054 ft	Perforated

Casing (3)

Size	Set Depth	Cement
16"	44 ft	85 sx
10.75"	2,008 ft	807 sx
7.625"	6,620 ft	650 sx

Permit History (3)

#302909 Recompletion Final Completion

THOMAS-RIFE GAS UNIT · 6,931 ft

1986-06-03

#229910 Recompletion Final Completion

THOMAS-RIFE GAS UNIT · 9,072 ft

1984-02-09

#37956 Recompletion

THOMAS-RIFE GAS UNIT · 9,102 ft

1978-11-09

Applications (3)

#302909 A SHELL WESTERN E&P INC.

received 1986-05-01

#229910 A SHELL WESTERN E&P INC.

received 1983-09-26

#37956 A SHELL OIL COMPANY

received 1978-11-09

Records & Logs

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

W-2/G-1 1986-07-10 log on file

W-2/G-1 1986-07-17

W-2/G-1 1984-04-06

W-2/G-1 1984-01-12

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 STARR County.

Well Details

Well Number: 4T
Max Depth: 9,102 ft
Drill Type: Vertical
County: STARR
District: 4
Operator: SHELL WESTERN E&P INC.

Operator

Name: SHELL WESTERN E&P INC
Location: HOUSTON
P-5 Status: Inactive (filed 1999-09-16)
Cum Oil (all leases): 103,539,803 bbl
Cum Gas (all leases): 1,149,777,929 mcf
Total Permits: 2,528