42-105-32409

Final Completion

SHANNON ESTATE -B-

CROCKETT County · District 7 · CLARK OIL CO. · SHANNON (SAN ANDRES)

Permits

Max Depth

2,400 ft

First Permit

1979-08-17

Latest Activity

1996-06-05

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-11-26

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: CLARK OIL CO. ≠ Permit: ENERGY PRODUCTION CORPORATION

Resolved via: production → CLARK OIL CO.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Cancelled 2001-01-17 UIC #000010197 permitted 1980-07-30

Permitted Volume

714 bbl/d

Max Pressure

1,800 psi

Injection Interval

2,030–2,224 ft

Injected (12mo)

—

Operator History

Chain of Custody

ENERGY PRODUCTION CORPORATION 1993-2002→ ZEPHYR LONE STAR OPER CO.,L.L.C. 2002-2002→ SUNDOWN ENERGY, INC. 2003-2005→ 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.

Formation Tops (4) Elevation 2,446 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
YATES	1,095 ft	+1,351 ft
SOMA	1,190 ft	+1,256 ft
QUEEN	1,792 ft	+654 ft
SAN ANDRES	2,003 ft	+443 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
1,238–1,250 ft	Perforated
2,030–2,244 ft	Perforated

Casing (4)

Size	Set Depth	Cement
8.625"	738 ft	425 sx
8.625"	783 ft	425 sx
2.375"	2,256 ft	—
5.5"	2,325 ft	450 sx

Permit History (2)

#448352 Recompletion Final Completion

SHANNON ESTATE "B" · 1,930 ft

1996-06-05

Spud 1995-03-09

#56485 Drill Final Completion

SHANNON ESTATE "B" · 2,400 ft

1979-08-17

Spud 1979-08-18

Applications (2)

#448352 A ENERGY PRODUCTION CORPORATION

received 1996-05-21

#56485 A SUN EXPL. & PROD. CO.-MIDLAND

received 1979-08-17

Records & Logs

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

W-2/G-1 1996-05-20 log on file

W-2/G-1 1996-07-09

W-2/G-1 1985-01-09

W-2/G-1 1984-08-02

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: 41
Max Depth: 2,400 ft
Drill Type: Vertical
County: CROCKETT
District: 7
Operator: CLARK OIL CO.
Completed: 1984-11-26

Operator

Name: CLARK OIL CO.
Location: DALLAS
P-5 Status: Active (filed 2025-10-14)
Cum Oil (all leases): 852,469 bbl
Cum Gas (all leases): 93 mcf
Activities: OPRS/G, OPRS/O