THIGPIN -A-

Oil · District 08 · Lease #27453

Operator: WESTOIL LLC

Fields: J N T (PENN)

Cum Oil

127k BBL

Cum Gas

46k MCF

casinghead

Wells

1

Production

1993-01 — 2022-09

Peak Month

2008-08

Production History

Cum Oil: 127,130 BBL Cum Gas: 46,327 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

907 BBL/mo

Di (annual)

10.3%

b-factor

0.2

EUR

124,716 BBL

R-squared

0.758

type

hyperbolic

Operator History (from monthly production reports)

2025-04 — 2026-07 WESTOIL LLC 16 mo

2023-10 — 2025-03 THIGPIN OPERATING, LLC 18 mo

2020-09 — 2023-09 EL RENO ENERGY, LLC 37 mo

2020-03 — 2020-08 RED STAG ENERGY, LLC 6 mo

2019-09 — 2020-02 GRIZZLY OP OF DELAWARE, LLC 6 mo

2015-11 — 2019-08 VANGUARD OPERATING, LLC 46 mo

2008-05 — 2015-10 EAGLE ROCK OPERATING COMPANY,LLC 90 mo

2005-03 — 2008-04 STANOLIND OPERATING CORP. 38 mo

2003-08 — 2005-02 THREE-B OIL COMPANY, THE 19 mo

1993-09 — 2003-07 BUCKEYE ENERGY, INC. 119 mo

1993-01 — 1993-08 L.C.S. PRODUCTION COMPANY 8 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-371-33747	WESTOIL LLC	1	9,300	1982-02-02