42-105-35807

Final Completion

SHANNON J. M. ESTATE -C-

CROCKETT County · District 7 · SUNDOWN ENERGY LP · SHANNON (SAN ANDRES)

Permits

Max Depth

2,600 ft

First Permit

1990-06-08

Latest Activity

2007-01-30

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1991-10-31

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 #000097510 permitted 2007-04-12

Permitted Volume

15,000 bbl/d

Max Pressure

1,000 psi

Injection Interval

2,000–2,060 ft

Injected (12mo)

17,703 bbl

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

Operator History

Chain of Custody

COX, ROBERT G. & ASSOCIATES,INC. 1993-1993→ HAWKEYE TRANSMISSION COMPANY 1993-2000→ SUNDOWN ENERGY, INC. 2004-2005→ SUNDOWN ENERGY LP 2005-2010

Lease Production

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

Formation Tops (4) Elevation 2,657 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
T/SOMA	1,950 ft	+707 ft
T/QUEEN	2,010 ft	+647 ft
B/AMHYDRITE	2,132 ft	+525 ft
T/SAN ANDRES	2,259 ft	+398 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 (2)

Interval	Type
2,010–2,050 ft	Perforated
2,374–2,438 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	852 ft	400 sx
5.5"	2,465 ft	250 sx

Permit History (2)

#632623 Recompletion Final Completion

SHANNON, J. M. ESTATE -C- · 2,600 ft

2007-01-30

Spud 2007-09-20

#372536 Drill U

SHANNON, J.M. ESTATE -C- · 2,600 ft

1990-06-08

Spud 1990-07-01

Applications (2)

#632623 A SUNDOWN ENERGY LP

received 2007-01-29

#372536 A COX, ROBERT G. & ASSOCIATES,INC.

received 1990-04-23

Records & Logs

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

W-2/G-1 2007-10-09 log on file

W-2/G-1 1991-11-18

W-2/G-1 1991-02-21

W-2/G-1 1991-03-01

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: 7
Max Depth: 2,600 ft
Drill Type: Vertical
County: CROCKETT
District: 7
Operator: SUNDOWN ENERGY LP
Completed: 1991-10-31

Operator

Name: SUNDOWN ENGY LP
Location: DALLAS
P-5 Status: X (filed 2026-06-03)
Cum Oil (all leases): 16,582,532 bbl
Cum Gas (all leases): 24,624,728 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 300