42-105-33633

Final Completion

SHANNON, M. A. "O"

CROCKETT County · District 7 · MARATHON OIL COMPANY

Permits

Max Depth

7,100 ft

First Permit

1981-09-16

Latest Activity

1998-01-30

Lifespan

16 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 Active UIC #000081802 permitted 2011-03-24

Permitted Volume

20,000 bbl/d

Max Pressure

1,050 psi

Injection Interval

2,100–2,800 ft

Injected (12mo)

6,704,398 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-07-01)

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 2,564 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	2,100 ft	+464 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 (6)

Interval	Type
2,122–2,172 ft	Perforated
2,190–2,230 ft	Perforated
2,190–2,390 ft	Perforated
2,298–2,320 ft	Perforated
2,350–2,390 ft	Perforated
2,450–2,510 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	927 ft	1,050 sx
2.875"	2,142 ft	—
9.625"	2,500 ft	1,150 sx

Permit History (3)

#472800 Recompletion Final Completion

SHANNON, M. A. "O" · 2,700 ft

1998-01-30

Spud 1998-03-10

#173259 Drill Final Completion

SHANNON ESTATE "O" · 6,208 ft

1982-09-23

#133291 Drill

SHANNON EST. O · 7,100 ft

1981-09-16

Spud 1981-09-22

Applications (3)

#472800 A MARATHON OIL COMPANY

received 1998-01-30

#173259 A MARATHON OIL COMPANY

received 1982-09-23

#133291 A MARATHON OIL COMPANY

received 1981-09-16

Records & Logs

5 completion filings on record.

W-2/G-1 1998-04-01

W-2/G-1 1995-06-14

W-2/G-1 1995-01-17

W-2/G-1 1982-09-21

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: 24
Max Depth: 7,100 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