42-479-34156

Final Completion

CALLAGHAN RANCH

WEBB County · District 4 · MOBIL PRODUCING TX. & N.M. INC. · HIRSCH (6900)

Permits

Max Depth

7,200 ft

First Permit

1985-05-13

Latest Activity

1999-07-08

Lifespan

14 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1986-09-10

Shut-In

—

Plugged

2010-05-20

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2010-05

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (1) Elevation 518 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
6900 SAND	6,811 ft	-6,293 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 (4)

Interval	Type
6,185–6,198 ft	Perforated
6,760–6,766 ft	Perforated
6,778–6,784 ft	Perforated
6,804–6,811 ft	Perforated

Casing (6)

Size	Set Depth	Cement
8.625"	800 ft	411 sx
8.625"	800 ft	—
8.625"	826 ft	435 sx
5.5"	7,150 ft	225 sx
5.5"	7,150 ft	883 sx
5.5"	7,150 ft	—

Permit History (2)

#485717 Recompletion Final Completion

CALLAGHAN RANCH · 7,059 ft

1999-07-08

Spud 1999-08-04

#274914 Drill Final Completion

CALLAGHAN RANCH · 7,200 ft

1985-05-13

Spud 1985-06-27

Applications (2)

#485717 A MOBIL PRODUCING TX. & N.M. INC.

received 1999-07-08

#274914 A MOBIL PRODUCING TX. & N.M. INC.

received 1985-05-10

Records & Logs

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

W-2/G-1 1999-11-08 log on file

W-2/G-1 1999-11-12

W-2/G-1 1986-10-07

W-2/G-1 1985-08-19

W-2/G-1 1985-09-10

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images 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 WEBB County.

Well Details

Well Number: 12
Max Depth: 7,200 ft
Drill Type: Vertical
County: WEBB
District: 4
Operator: MOBIL PRODUCING TX. & N.M. INC.
Completed: 1986-09-10

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