42-135-04475

Final Completion

SLATOR -B-

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

Permits

Max Depth

9,742 ft

First Permit

1978-03-13

Latest Activity

1998-06-16

Lifespan

20 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

2001-08-21

EWA / Permit operator mismatch

Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: ANADARKO PETROLEUM CORP.

Resolved via: production → FORMENTERA OPERATIONS LLC

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. 1993-1995→ 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.

Formation Tops

No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.

Check this well's filings at RRC ↗

Perforations (5)

Interval	Type
7,484–7,656 ft	Perforated
7,834–7,953 ft	Perforated
9,078–9,170 ft	Perforated
9,345–9,416 ft	Perforated
?–9,416 ft	Perforated

Casing (6)

Size	Set Depth	Cement
13.375"	221 ft	300 sx
13.375"	221 ft	300 sx
8.625"	3,611 ft	2,500 sx
8.625"	3,611 ft	2,500 sx
5.5"	9,610 ft	1,000 sx
5.5"	9,612 ft	1,000 sx

Permit History (2)

#477024 Recompletion Final Completion

SLATOR -B- · 9,742 ft

1998-06-16

Spud 1998-07-17

#19954 Other Final Completion

SLATOR -B- · 9,742 ft

1978-03-13

Spud 1978-03-21

Applications (2)

#477024 A ANADARKO PETROLEUM CORP.

received 1998-06-10

#19954 A SHELL OIL COMPANY

received 1978-03-13

Records & Logs

3 completion filings on record.

W-2/G-1 1998-07-31

W-2/G-1 1972-09-18

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: 4
Max Depth: 9,742 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: 71