42-461-03463

Horizontal

MCELROY RANCH COMPANY #135

UPTON County · District 7 · EXXON MOBIL CORPORATION

Permits

Max Depth

12,865 ft

First Permit

1995-08-29

Latest Activity

2005-01-06

Lifespan

9 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2019-11

Operator History

Chain of Custody

EXXON CORP. 1993-2000→ EXXON MOBIL CORPORATION 2000-2006

Lease Production

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

Formation Tops (6) Elevation 2,844 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	4,795 ft	-1,951 ft
LEONARD	6,096 ft	-3,252 ft
PENNSYLVANIAN	9,484 ft	-6,640 ft
BEND	10,095 ft	-7,251 ft
DEVONIAN	10,897 ft	-8,053 ft
FUSSELMAN	11,781 ft	-8,937 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
10,954–11,754 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	203 ft	—
9.625"	4,825 ft	—
2.875"	11,831 ft	830 sx

Permit History (2)

#555667 Recompletion

MCELROY RANCH COMPANY #135 · 12,600 ft

2005-01-06

#439350 Recompletion

MCELROY RANCH CO #135 · 12,865 ft

1995-08-29

Applications (2)

#555667 A EXXON MOBIL CORPORATION

received 2005-01-04

#439350 A EXXON CORP.

received 1995-08-28

Records & Logs

4 completion filings on record.

W-2/G-1 2005-07-18

W-2/G-1 1997-04-28

W-2/G-1 1997-07-18

W-2/G-1 1967-08-18

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 UPTON County.

Well Details

Well Number: 42
Max Depth: 12,865 ft
Drill Type: Horizontal
County: UPTON
District: 7
Operator: EXXON MOBIL CORPORATION

Operator

Name: EXXON MOBIL CORP
Location: SPRING
P-5 Status: Delinquent (filed 2025-04-16)
Cum Oil (all leases): 155,164,556 bbl
Cum Gas (all leases): 2,032,561,175 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G
Total Permits: 1,223