OPPENHEIMER

Oil · District 01 · Lease #12716

Operator: SPUR OPERATING CO.

Fields: PEARSALL (AUSTIN CHALK)

Cum Oil

102k BBL

Cum Gas

504k MCF

casinghead

Wells

1

Production

1993-01 — 2017-02

Peak Month

1994-03

Production History

Cum Oil: 102,113 BBL Cum Gas: 504,354 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,715 BBL/mo

Di (annual)

501.7%

b-factor

0.1

EUR

4,612 BBL

R-squared

0.884

type

hyperbolic

Operator History (from monthly production reports)

2017-07 — 2026-07 BIGFOOT OIL LLC 109 mo

2016-09 — 2017-06 JENCO PETROLEUM CORPORATION 10 mo

2012-03 — 2016-08 JENEX PETROLEUM CORPORATION 54 mo

2001-01 — 2012-02 SPUR OPERATING CO. 134 mo

1996-12 — 2000-12 SHANA PETROLEUM COMPANY 49 mo

1993-01 — 1996-11 SABRE OPERATING, INC. 47 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-163-32831	BIGFOOT OIL LLC	3	7,800	2019-04-18