42-105-35979

SHANNON ESTATE M-2

CROCKETT County · District 7 · MARATHON OIL COMPANY

Permits

Max Depth

2,600 ft

First Permit

1991-07-26

Latest Activity

1994-06-20

Lifespan

3 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Inactive UIC #000098282 permitted 2007-11-01

Permitted Volume

20,000 bbl/d

Max Pressure

800 psi

Injection Interval

2,285–2,600 ft

Injected (12mo)

—

Operator History

Chain of Custody

MARATHON OIL COMPANY 1993-1999→ GRASHA, MATTHEW P. 1993-1993→ LAS ANIMAS PRODUCTION COMPANY 1993-1994→ GRESHAM OIL & GAS (USA) INC. 1994-1996→ TRACY PRODUCTION 1999-2007→ HENRY PETROLEUM CORP. 1999-2001→ HENRY PETROLEUM LP 2001-2004→ ASPEN OPERATING COMPANY, L.L.C. 2005-2026

Lease Production

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

Formation Tops (1) Elevation 2,507 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	2,060 ft	+447 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
2,060–2,066 ft	Perforated
2,072–2,076 ft	Perforated
2,079–2,083 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	705 ft	600 sx
5.5"	2,285 ft	625 sx

Permit History (2)

#425090 Recompletion

SHANNON ESTATE M-2 · 2,000 ft

1994-06-20

#390295 Drill U

SHANNON ESTATE "M-2" · 2,600 ft

1991-07-26

Spud 1991-08-27

Applications (2)

#425090 A MARATHON OIL COMPANY

received 1994-06-20

#390295 A MARATHON OIL COMPANY

received 1991-07-26

Records & Logs

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

W-2/G-1 1993-03-12

W-2/G-1 1992-01-16 log on file

W-2/G-1 1992-01-23

W-2/G-1 1992-01-22

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 CROCKETT County.

Well Details

Well Number: 16R
Max Depth: 2,600 ft
Drill Type: Vertical
County: CROCKETT
District: 7
Operator: MARATHON OIL COMPANY

Operator

Name: MARATHON OIL CO
Location: HOUSTON
P-5 Status: Active (filed 2025-08-14)
Cum Oil (all leases): 183,150,113 bbl
Cum Gas (all leases): 1,013,063,895 mcf
Activities: CSGD/P, G/PUR
Total Permits: 3,707