← Wells

42-105-35806

Final Completion

SHANNON J. M. EST. -E-

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

Permits

1

Max Depth

2,600 ft

First Permit

1990-06-08

Latest Activity

1990-06-08

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1990-10-04

Shut-In

—

Plugged

—

!

EWA / Production operator mismatch

Scheduling: SUNDOWN ENERGY LP ≠ Production: CLARK OIL CO. (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: SUNDOWN ENERGY LP ≠ Permit: COX, ROBERT G. & ASSOCIATES,INC.

Resolved via: production → CLARK OIL CO.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

COX, ROBERT G. & ASSOCIATES,INC. 1993-1993→ HAWKEYE TRANSMISSION COMPANY 1993-2000→ ARKOMA PROD CO OF TEXAS, INC. 2000-2002→ SUNDOWN ENERGY, INC. 2002-2005→ SUNDOWN ENERGY LP 2005-2017→ CLARK OIL CO. 2017-2026

Lease Production

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

Oil
production & DCA →
Oil
production & DCA →

Formation Tops (4) Elevation 2,640 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
T/SOMA1,932 ft+708 ft
T/QUEEN1,993 ft+647 ft
B/ANHYDRITE2,150 ft+490 ft
T/SAN ANDRES2,242 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)

IntervalType
2,360–2,366 ftPerforated
2,376–2,400 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"852 ft450 sx
5.5"2,455 ft250 sx

Permit History (1)

#372532 Drill Final Completion

SHANNON, J.M. EST. -E- · 2,600 ft

1990-06-08

Applications (1)

#372532 A COX, ROBERT G. & ASSOCIATES,INC.
received 1990-04-23

Records & Logs

3 completion filings on record · 2 with log images at RRC.

W-2/G-1 1990-10-08 log on file
W-2/G-1 1990-10-08 log on file
W-2/G-1 1990-10-22
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
10
Max Depth
2,600 ft
Drill Type
Vertical
County
CROCKETT
District
7
Operator
SUNDOWN ENERGY LP
Completed
1990-10-04

Operator

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