STANFORD

Oil · District 02 · Lease #9179

Operator: VIPER S.W.D., LLC

Fields: WESTHOFF (COMBINED ASSOCIATED)

Cum Oil

13k BBL

Cum Gas

27k MCF

casinghead

Wells

1

Production

2008-01 — 2018-02

Peak Month

2008-05

Production History

Cum Oil: 12,809 BBL Cum Gas: 27,439 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

292 BBL/mo

Di (annual)

43.7%

b-factor

0.6

EUR

16,615 BBL

R-squared

0.506

type

hyperbolic

Operator History (from monthly production reports)

2022-10 — 2026-07 VIPER S.W.D., LLC 46 mo

2021-12 — 2022-09 SIR DRAKE OIL AND GAS COMPANY 10 mo

2018-03 — 2021-11 ACOCK/ANAQUA OPERATING CO., LP 45 mo

2016-12 — 2018-02 PROGENIES OPERATING LLC 15 mo

2013-08 — 2016-11 BXP OPERATING, LLC 40 mo

2008-01 — 2013-07 AMBASSADOR PETROLEUM, INC. 67 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-239-33429	VIPER S.W.D. LLC	1	7,000	2007-09-26