SHANKLES, D. L.

Oil · District 09 · Lease #23727

Operator: SAMSON RESOURCES COMPANY

Fields: GRACE-MAG (PENN CORDELL)

Cum Oil

8k BBL

Cum Gas

264k MCF

casinghead

Wells

1

Production

1993-01 — 2004-09

Peak Month

1997-10

Production History

Cum Oil: 7,520 BBL Cum Gas: 264,044 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

104 BBL/mo

Di (annual)

21.0%

b-factor

0.0

EUR

5,883 BBL

R-squared

0.507

type

exponential

Operator History (from monthly production reports)

1996-08 — 2005-09 SAMSON LONE STAR LP 110 mo

1995-04 — 1996-07 SAMSON HYDROCARBONS COMPANY 16 mo

1993-04 — 1995-03 SAMSON RESOURCES COMPANY 24 mo

1993-01 — 1993-03 GEODYNE OPERATING COMPANY 3 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-181-30951	BKM PRODUCTION	3	12,800	2010-06-30