SHANNON ESTATE "B"

Gas · District 7C · Lease #86514

Operator: ZEPHYR LONE STAR OPER CO.,L.L.C.

Fields: SHANNON (SEVEN RIVERS)

Cum Oil

0 BBL

Cum Gas

293k MCF

Wells

1

Production

1993-01 — 2024-06

Peak Month

2003-10

Production History

Cum Oil: 0 BBL Cum Gas: 293,013 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2017-07 — 2025-05 CLARK OIL CO. 95 mo

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

2003-01 — 2005-01 SUNDOWN ENERGY, INC. 25 mo

2002-12 — 2002-12 ZEPHYR LONE STAR OPER CO.,L.L.C. 1 mo

1993-01 — 2002-11 ENERGY PRODUCTION CORPORATION 119 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
45	42-105-32491	CLARK OIL CO.	1	1,900	1979-10-15