42-003-36088

Final Completion

UNIVERSITY -13-G-

ANDREWS County · District 8 · MOBIL PRODUCING TX. & N.M. INC. · SHAFTER LAKE (ELLENBURGER)

Permits

Max Depth

12,500 ft

First Permit

1988-03-09

Latest Activity

1988-03-09

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1988-06-02

Shut-In

—

Plugged

1992-03-02

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 (8) Elevation 3,243 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
YATES	2,930 ft	+313 ft
SAN ANDRES	4,600 ft	-1,357 ft
WOLFCAMP	8,420 ft	-5,177 ft
MISSISSIPPI LIME (Mississippian)	8,925 ft	-5,682 ft
WOODFORD	9,330 ft	-6,087 ft
DEVONIAN	9,445 ft	-6,202 ft
MONTOYA	11,295 ft	-8,052 ft
ELLENBURGER	11,770 ft	-8,527 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 (1)

Interval	Type
11,748–11,797 ft	Perforated

Casing (2)

Size	Set Depth	Cement
13.375"	1,750 ft	2,300 sx
9.625"	5,600 ft	2,045 sx

Permit History (1)

#343589 Drill Final Completion

UNIVERSITY "13-G" · 12,500 ft

1988-03-09

Spud 1988-03-15

Applications (1)

#343589 A MOBIL PRODUCING TX. & N.M. INC.

received 1988-03-07

Records & Logs

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

W-2/G-1 1988-07-11 log on file

W-2/G-1 1988-07-23

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 ANDREWS County.

Well Details

Well Number: 11
Max Depth: 12,500 ft
Drill Type: Vertical
County: ANDREWS
District: 8
Operator: MOBIL PRODUCING TX. & N.M. INC.
Completed: 1988-06-02

Operator

Name: SUPERIOR OIL CO, THE
Location: SPRING
P-5 Status: Active (filed 2025-06-04)
Cum Oil (all leases): 181,898,111 bbl
Cum Gas (all leases): 1,950,074,148 mcf
Activities: CSGD/G, GTHS/C, GTHS/G
Total Permits: 6,763