42-105-32511

Final Completion Horizontal

SHANNON ESTATE

CROCKETT County · District 7 · ASPEN OPERATING COMPANY, L.L.C.

Permits

Max Depth

2,900 ft

First Permit

1979-11-08

Latest Activity

2022-07-18

Lifespan

43 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 #000125523 permitted 2022-10-04

Permitted Volume

20,000 bbl/d

Max Pressure

1,050 psi

Injection Interval

2,118–2,900 ft

Injected (12mo)

711,882 bbl

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

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Operator History

Chain of Custody

GRASHA, MATTHEW P. 1993-1993→ LAS ANIMAS PRODUCTION COMPANY 1993-1994→ GRESHAM OIL & GAS (USA) INC. 1994-1996→ TRACY PRODUCTION 1999-2007→ ASPEN OPERATING COMPANY, L.L.C. 2008-2026

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 (9) Elevation 2,576 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SOMA SAND	1,314 ft	+1,262 ft
QUEEN	1,990 ft	+586 ft
SAN ANDRES	2,134 ft	+442 ft
CANYON	—	—
DEVONIAN	—	—
ELLENBURGER	—	—
LEONARD	—	—
STRAWN	—	—
WOLFCAMP	—	—

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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section

✓ 42-105-41060 SHANNON ESTATE · ASPEN OPERATING COMPANY, L.L.C.

0.4 mi

Yates 1,258'Seven Rivers 1,379'Queen 1,854'San Andres 2,016'San Andres 2,188'Leonard 3,100'

✓ 42-105-41075 SHANNON ESTATE · ASPEN OPERATING COMPANY, L.L.C.

0.5 mi

Queen 1,500'Queen 1,725'Queen 1,818'Grayburg 1,973'San Andres 2,035'San Andres 2,037'San Andres 2,046'Leonard —Devonian —Wolfcamp —Strawn —Canyon — +1 more

✓ 42-105-35509 SHANNON ESTATE "O" · MARATHON OIL COMPANY

0.7 mi

Queen 1,500'San Andres 2,050'San Andres 2,080'Devonian —Strawn —Canyon —Leonard —Wolfcamp —Ellenburger —

✓ 42-105-02307 SHANNON ESTATE -M-1- · HENRY PETROLEUM CORP.

1.0 mi

Yates 1,214'Seven Rivers 1,332'Queen 1,804'San Andres 2,124'

✓ 42-105-42467 SHANNON HOSPITAL 1 · EASTLAND OIL COMPANY, THE

1.0 mi

Rustler 658'Yates 1,115'Seven Rivers 1,270'Queen 1,778'GREYBURG 1,980'San Andres 2,043'Leonard 3,790'Wolfcamp 5,215'Strawn —Canyon —

✓ 42-105-35953 SHANNON ESTATE 'M-1' · MARATHON OIL COMPANY

1.1 mi

Salado 779'Yates 1,073'Seven Rivers 1,200'Queen 1,688'Queen 1,720'GREYBURG 1,900'San Andres 1,900'San Andres 1,998'San Andres 2,000'Devonian —Ellenburger —Wolfcamp — +3 more

✓ 42-105-02313 SHANNON ESTATE · ASPEN OPERATING COMPANY, L.L.C.

1.1 mi

Queen 1,656'San Andres 1,860'Devonian —Wolfcamp —Leonard —Canyon —Ellenburger —Strawn —

✓ 42-105-39843 SHANNON HOSPITAL 4 #3 UNIT · EOG RESOURCES, INC.

1.3 mi

CLEARKFORK 3,076'Clear Fork 3,076'Spraberry 4,196'Wolfcamp 4,823'Wolfcamp 5,006'Wolfcamp 5,194'Wolfcamp 5,256'ESTIMATED TOPS —

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (2)

Interval	Type
2,134–2,141 ft	Perforated
2,141–2,890 ft	Open hole

Casing (3)

Size	Set Depth	Cement
9.625"	701 ft	550 sx
7"	2,123 ft	500 sx
2.375"	2,132 ft	—

Permit History (3)

#882058 Recompletion Final Completion

SHANNON ESTATE · 2,900 ft

2022-07-18

Spud 1979-12-01

#843526 Recompletion

SHANNON ESTATE · 2,150 ft

2018-08-16

#63732 Drill Final Completion

SHANNON ESTATE · 2,350 ft

1979-11-08

Spud 1979-12-01

Applications (3)

#882058 A ASPEN OPERATING COMPANY, L.L.C.

received 2022-07-13

#843526 A ASPEN OPERATING COMPANY, L.L.C.

received 2018-08-14

#63732 A SUN EXPLORATION & PRODUCTION CO.

received 1979-11-08

Records & Logs

2 completion filings on record.

W-2/G-1 2023-03-21

W-2/G-1 1980-03-19

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.

Google Maps → Explorer Map →

Lat 30.842158

Lon -101.740892

Well Details

Well Number: 15
Max Depth: 2,900 ft
Drill Type: Horizontal
County: CROCKETT
District: 7
Operator: ASPEN OPERATING COMPANY, L.L.C.

Operator

Name: ASPEN OPER CO, L.L.C
Location: FORT WORTH
P-5 Status: Active (filed 2026-01-12)
Cum Oil (all leases): 4,610,944 bbl
Cum Gas (all leases): 9,640,400 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 124