← Wells

42-103-30279

Final Completion

SAND HILLS TUBB UNIT

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

Permits

3

Max Depth

4,900 ft

First Permit

1984-05-03

Latest Activity

2004-08-30

Lifespan

20 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-11-03

Shut-In

—

Plugged

—

!

EWA / Permit operator mismatch

Scheduling: FORMENTERA OPERATIONS LLC ≠ Permit: ENCORE OPERATING, L.P.

Resolved via: production → FORMENTERA OPERATIONS LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Cancelled 2005-06-16 UIC #000054208 permitted 1984-12-03

Permitted Volume

—

Max Pressure

—

Injection Interval

—

Injected (12mo)

—

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.

Gas
production & DCA →
Oil
production & DCA →

Formation Tops (5)

CSV
FormationTop Depth (MD)
JUDKINS3,100 ft
MCKNIGHT 3,560 ft
SAN ANGELO 3,935 ft
CLEARFORK (Clear Fork)4,260 ft
TUBB 4,570 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗

Perforations (4)

IntervalType
2,648–2,786 ftPerforated
3,929–4,116 ftPerforated
4,262–4,485 ftPerforated
4,578–4,830 ftPerforated

Casing (4)

SizeSet DepthCement
8.625"610 ft350 sx
8.625"610 ft—
5.5"4,900 ft500 sx
5.5"4,900 ft—

Permit History (3)

#550193 Recompletion Final Completion

SAND HILL TUBB UNIT · 4,900 ft

2004-08-30

#550193 Recompletion

SAND HILL TUBB UNIT · 4,900 ft

2004-08-30

#237784 Drill U

LEA, P. J. · 4,900 ft

1984-05-03

Applications (3)

#550193 A ENCORE OPERATING, L.P.
received 2004-09-22
#550193 A ENCORE OPERATING, L.P.
received 2004-08-26
#237784 A MOBIL PRODUCING TX. & N.M. INC.
received 1984-05-03

Records & Logs

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

W-2/G-1 2004-11-29 log on file
W-2/G-1 2005-02-22
W-2/G-1 2001-07-02
W-2/G-1 1985-01-10
W-2/G-1 1984-07-11
W-2/G-1 1984-07-11

+1 more filings

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
42
Max Depth
4,900 ft
Drill Type
Vertical
County
CRANE
District
8
Operator
FORMENTERA OPERATIONS LLC
Completed
1984-11-03

Operator

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