GRAVES, T.A.

Oil · District 02 · Lease #9251

Operator: VIPER S.W.D., LLC

Fields: WESTHOFF (COMBINED ASSOCIATED)

Cum Oil

42k BBL

Cum Gas

118k MCF

casinghead

Wells

2

Production

2008-07 — 2026-04

Peak Month

2010-08

Production History

Cum Oil: 41,880 BBL Cum Gas: 118,108 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

730 BBL/mo

Di (annual)

22.8%

b-factor

0.0

EUR

38,271 BBL

R-squared

0.655

type

exponential

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

2008-07 — 2013-07 AMBASSADOR PETROLEUM, INC. 61 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-239-30777	VIPER S.W.D., LLC	6	6,195	2008-06-02
2	42-239-01770	VIPER S.W.D., LLC	7	8,011	2008-04-16