42-103-33233

Final Completion

SAND HILLS TUBB UNIT

CRANE County · District 8 · FORMENTERA OPERATIONS LLC · SAND HILLS (TUBB)

Permits

Max Depth

5,000 ft

First Permit

1983-08-01

Latest Activity

1989-10-02

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2024-08-13

Shut-In

—

Plugged

2025-12-04

EWA / Permit operator mismatch

Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.

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

MOBIL PRODUCING TX. & N.M. INC. 1993-1996→ TITAN RESOURCES I, INC. 1996-2000→ PURE RESOURCES, L.P. 2000-2002→ HOME-STAKE OIL & GAS COMPANY 2002-2002→ CORTEZ OPERATING COMPANY 2002-2004→ ENCORE OPERATING, L.P. 2004-2009→ ENCORE ENERGY PARTNERS OPER LLC 2009-2012→ VANGUARD PERMIAN, LLC 2012-2015→ VANGUARD OPERATING, LLC 2015-2019→ GRIZZLY OP OF DELAWARE, LLC 2019-2021→ CONTANGO RESOURCES, INC. 2021-2021→ CONTANGO RESOURCES, LLC 2022-2022→ SLANT OPERATING, LLC 2022-2023→ 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 (3) Elevation 2,613 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANGELO	3,448 ft	-835 ft
TUBB	4,266 ft	-1,653 ft
WICHITA-ALBANY	4,744 ft	-2,131 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 (6)

Interval	Type
3,476–3,487 ft	Perforated
3,641–3,720 ft	Perforated
4,077–4,242 ft	Perforated
4,310–4,473 ft	Perforated
4,310–4,688 ft	Perforated
4,589–4,688 ft	Perforated

Casing (5)

Size	Set Depth	Cement
8.625"	600 ft	150 sx
8.625"	600 ft	—
2.375"	4,249 ft	—
5.5"	4,900 ft	250 sx
5.5"	4,900 ft	—

Permit History (2)

#364644 Recompletion Final Completion

SAND HILLS TUBB UNIT · 4,900 ft

1989-10-02

#203583 Drill Final Completion

LEA, P. J. · 5,000 ft

1983-08-01

Spud 1983-09-10

Applications (3)

#364644 A MOBIL PRODUCING TX. & N.M. INC.

received 1989-10-02

#203583 A MOBIL PRODUCING TX. & N.M. INC.

received 1983-11-18

#203583 A MOBIL PRODUCING TX. & N.M. INC.

received 1983-08-01

Records & Logs

5 completion filings on record.

W-2/G-1 2025-06-16

W-2/G-1 1990-01-29

W-2/G-1 1990-02-13

W-2/G-1 1984-03-06

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 CRANE County.

Well Details

Well Number: 53
Max Depth: 5,000 ft
Drill Type: Vertical
County: CRANE
District: 8
Operator: FORMENTERA OPERATIONS LLC
Completed: 2024-08-13

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: 83