42-383-33323

Final Completion

UNIVERSITY A 4

REAGAN County · District 7 · COSTILLA PETROLEUM CORPORATION · SPRABERRY (TREND AREA)

Permits

Max Depth

7,500 ft

First Permit

1984-11-29

Latest Activity

1985-08-23

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-09-21

Shut-In

—

Plugged

1995-09-13

EWA / Permit operator mismatch

Scheduling: COSTILLA PETROLEUM CORPORATION ≠ Permit: COSTEX RESOURCES, INC.

Resolved via: scheduling → COSTILLA PETROLEUM CORPORATION

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

1995-11

Operator History

originally filed by COSTEX RESOURCES, INC. — asset transferred

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 (10) Elevation 2,735 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
UPPER SPRABERRY (Spraberry)	5,915 ft	-3,180 ft
U. SPRABERRY	5,915 ft	-3,180 ft
U/SPRABERRY	5,915 ft	-3,180 ft
LOWER SPRABERRY (Spraberry)	6,370 ft	-3,635 ft
L. SPRABERRY	6,370 ft	-3,635 ft
JO MILL	6,762 ft	-4,027 ft
L/SPRABERRY	6,772 ft	-4,037 ft
DEAN	6,947 ft	-4,212 ft
T/DEAN	7,248 ft	-4,513 ft
WOLFCAMP	7,350 ft	-4,615 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 (3)

Interval	Type
5,915–6,796 ft	Perforated
6,437–6,949 ft	Perforated
6,949–7,437 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	762 ft	400 sx
4.5"	6,929 ft	1,215 sx

Permit History (2)

#283483 Recompletion Final Completion

UNIVERSITY "A" "4" · 7,500 ft

1985-08-23

#259339 Drill Final Completion

UNIVERSITY "A" · 6,914 ft

1984-11-29

Applications (2)

#283483 A COSTEX RESOURCES, INC.

received 1985-08-22

#259339 A COSTEX RESOURCES, INC.

received 1984-11-29

Records & Logs

4 completion filings on record.

W-2/G-1 1985-11-22

W-2/G-1 1985-10-07

W-2/G-1 1985-04-26

W-2/G-1 1985-05-03

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 REAGAN County.

Well Details

Well Number: 1
Max Depth: 7,500 ft
Drill Type: Vertical
County: REAGAN
District: 7
Operator: COSTILLA PETROLEUM CORPORATION
Completed: 1985-09-21

Operator

Name: COSTILLA PETRO CORP
Location: MIDLAND
P-5 Status: Inactive (filed 1996-04-12)
Cum Oil (all leases): 2,333,776 bbl
Cum Gas (all leases): 10,236,504 mcf
Total Permits: 120