42-135-05909

Final Completion

TXL NORTH UNIT

ECTOR County · District 8 · FORMENTERA OPERATIONS LLC · TXL (TUBB)

Permits

Max Depth

8,074 ft

First Permit

1977-11-22

Latest Activity

1980-01-22

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: SHELL OIL COMPANY

Resolved via: production → FORMENTERA OPERATIONS LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

ECTOR County disposal market →

H-1 Injection Active UIC #000020221 permitted 1990-07-17

Permitted Volume

3,000 bbl/d

Max Pressure

2,000 psi

Injection Interval

5,300–7,100 ft

Injected (12mo)

41,535 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-10-01)

Operator History

Chain of Custody

SHELL WESTERN E&P INC. 1993-1995→ ANADARKO PETROLEUM CORPORATION 1995-2007→ APACHE CORPORATION 2007-2021→ SLANT OPERATING, LLC 2021-2023→ FORMENTERA OPERATIONS LLC 2023-2026

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 3,286 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	4,100 ft	-814 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 (4)

Interval	Type
5,403–6,324 ft	Perforated
5,483–6,106 ft	Perforated
?–6,158 ft	Perforated
?–8,050 ft	Perforated

Casing (5)

Size	Set Depth	Cement
9.625"	1,420 ft	500 sx
9.625"	1,420 ft	500 sx
2.375"	5,384 ft	—
7"	8,061 ft	900 sx
7"	8,074 ft	900 sx

Permit History (2)

#70478 Recompletion Final Completion

TXL NORTH UNIT · 8,074 ft

1980-01-22

#12615 Recompletion

TXL -K- TRACT 1 · 8,074 ft

1977-11-22

Applications (2)

#70478 A SHELL OIL COMPANY

received 1980-01-22

#12615 A SHELL OIL COMPANY

received 1977-11-22

Records & Logs

5 completion filings on record.

W-2/G-1 1992-02-28

W-2/G-1 1990-10-01

W-2/G-1 1980-01-28

W-2/G-1 1960-12-09

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

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 ECTOR County.

Well Details

Well Number: 544W
Max Depth: 8,074 ft
Drill Type: Vertical
County: ECTOR
District: 8
Operator: FORMENTERA OPERATIONS LLC

Operator

Name: FORMENTERA OPERATIONS LLC
Location: AUSTIN
P-5 Status: X (filed 2026-06-11)
Cum Oil (all leases): 7,170,117 bbl
Cum Gas (all leases): 53,235,974 mcf
Activities: CSGD/P, G/PUR, OPRS/G, OPRS/O
Total Permits: 73