O.F.K.

Oil · District 09 · Lease #31642

Operator: WHITE MARLIN OPERATING CO, LLC

Fields: PERRIN, N. AFB (BAKER SD)

Cum Oil

27k BBL

Cum Gas

89k MCF

casinghead

Wells

1

Production

2010-06 — 2026-04

Peak Month

2011-07

Production History

Cum Oil: 27,389 BBL Cum Gas: 88,935 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

563 BBL/mo

Di (annual)

45.5%

b-factor

0.5

EUR

27,307 BBL

R-squared

0.901

type

hyperbolic

Operator History (from monthly production reports)

2018-09 — 2026-07 BKM PRODUCTION 95 mo

2018-04 — 2018-08 WHITE MARLIN OPERATING CO, LLC 5 mo

2014-10 — 2018-03 ARROW ROCK ENERGY, LLC 42 mo

2010-06 — 2014-09 SAMSON LONE STAR, LLC 52 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-181-30895	BKM PRODUCTION	3	10,117	2010-03-26