42-115-32441

Final Completion

HUDDLE

DAWSON County · District 8 · TERRA RESOURCES INC. · LAMESA WEST (SPRABERRY)

Permits

Max Depth

8,200 ft

First Permit

1987-07-29

Latest Activity

2000-04-06

Lifespan

13 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-08-30

Shut-In

—

Plugged

1988-02-25

EWA / Production operator mismatch

Scheduling: TERRA RESOURCES INC. ≠ Production: ROCA OPERATING, INC. (reported 2026-04)

EWA / Permit operator mismatch

Scheduling: TERRA RESOURCES INC. ≠ Permit: STELBAR OIL CORPORATION, INC.

Resolved via: production → ROCA OPERATING, INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2000-01

Last Production

2026-07

Operator History

Chain of Custody

STELBAR OIL CORPORATION, INC. 2000-2008→ ROCA OPERATING, INC. 2009-2026

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 (7) Elevation 2,955 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SANTA ROSA	1,414 ft	+1,541 ft
YATES	2,672 ft	+283 ft
SEVEN RIVERS	2,790 ft	+165 ft
SAN ANDRES	4,093 ft	-1,138 ft
U. SPRABERRY	7,373 ft	-4,418 ft
M. SPRABERRY	7,715 ft	-4,760 ft
M. SPRABERRY SANDSTONE	7,798 ft	-4,843 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 (2)

Interval	Type
1,414–1,544 ft	Perforated
7,841–7,866 ft	Perforated

Casing (4)

Size	Set Depth	Cement
13.375"	412 ft	450 sx
13.375"	450 ft	1,680 sx
8.625"	4,081 ft	1,480 sx
5.5"	8,100 ft	750 sx

Permit History (2)

#493688 Reenter Final Completion

LAMESA WEST WATERFLOOD UNIT · 1,800 ft

2000-04-06

Spud 2000-04-24

#333598 Drill Final Completion

HUDDLE · 8,200 ft

1987-07-29

Applications (2)

#493688 A STELBAR OIL CORPORATION, INC.

received 2000-03-31

#333598 A TERRA RESOURCES, INC.

received 1987-07-27

Records & Logs

4 completion filings on record · 2 with log images at RRC.

W-2/G-1 2000-05-26 log on file

W-2/G-1 2000-07-18

W-2/G-1 1987-09-21 log on file

W-2/G-1 1987-12-08

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 DAWSON County.

Well Details

Well Number: 4WS
Max Depth: 8,200 ft
Drill Type: Vertical
County: DAWSON
District: 8
Operator: TERRA RESOURCES INC.
Completed: 1987-08-30

Operator

Name: TERRA RES, INC
Location: HOUSTON
P-5 Status: Inactive (filed 1988-10-19)
Total Permits: 575