MCDONALD -46-

Oil · District 08 · Lease #32014

Operator: R.K.G. OPERATIONS, INC.

Fields: WENTZ (WICHITA-ALBANY)

Cum Oil

59k BBL

Cum Gas

1.0M MCF

casinghead

Wells

1

Production

1993-01 — 2024-12

Peak Month

2001-07

Production History

Cum Oil: 58,705 BBL Cum Gas: 1,000,083 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

268 BBL/mo

Di (annual)

4.5%

b-factor

0.0

EUR

63,806 BBL

R-squared

0.547

type

exponential

Operator History (from monthly production reports)

2016-01 — 2026-07 OLSEN ENERGY INC. 127 mo

2004-07 — 2015-12 R. K. G. ENGINEERING, INC. 138 mo

1997-01 — 2004-06 R.K.G. OPERATIONS, INC. 90 mo

1993-01 — 1996-12 R. K. G. ENGINEERING, INC. 48 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4	42-371-30743	OLSEN ENERGY INC.	1	1,600	1999-03-01