42-105-35811

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

1991-02-08

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: productionCLARK OIL CO.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (4) Elevation 2,646 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SOMA1,863 ft+783 ft
QUEEN SD (Queen)1,936 ft+710 ft
ANHYDRITE BASE2,057 ft+589 ft
SAN ANDRES 2,188 ft+458 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 (1)

IntervalType
2,284–2,328 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"868 ft450 sx
5.5"2,390 ft250 sx

Permit History (1)

Applications (1)

#372531 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 1991-02-25 log on file
W-2/G-1 1991-02-25 log on file
W-2/G-1 1991-03-19
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.

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
16
Max Depth
2,600 ft
Drill Type
Vertical
County
CROCKETT
District
7
Completed
1991-02-08

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