SHANNON ESTATE

Oil · District 7C · Lease #1275

Operator: SUNDOWN ENERGY LP

Fields: SHANNON (SAN ANDRES)

Cum Oil

110k BBL

Cum Gas

19 MCF

casinghead

Wells

6

Production

1993-01 — 2026-04

Peak Month

2012-11

Production History

Cum Oil: 110,239 BBL Cum Gas: 19 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2017-07 — 2026-07 CLARK OIL CO. 109 mo

2005-02 — 2017-06 SUNDOWN ENERGY LP 149 mo

2002-11 — 2005-01 SUNDOWN ENERGY, INC. 27 mo

2000-07 — 2002-10 ARKOMA PROD CO OF TEXAS, INC. 28 mo

1993-05 — 2000-06 HAWKEYE TRANSMISSION COMPANY 86 mo

1993-01 — 1993-04 COX, ROBERT G. & ASSOCIATES,INC. 4 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5D	42-105-02779	CLARK OIL CO.	2	2,384	2014-06-18
3	42-105-02771	CLARK OIL CO.	3	2,410	2012-06-13
1	42-105-02759	CLARK OIL CO.	--	--	--
2	42-105-02766	CLARK OIL CO.	--	--	--
6	42-105-02782	CLARK OIL CO.	--	--	--
7	42-105-02785	CLARK OIL CO.	--	--	--