RASCHKE -D-

Oil · District 08 · Lease #27864

Operator: SWJN OIL COMPANY

Fields: WESTBROOK, EAST (CLEAR FORK)

Cum Oil

21k BBL

Cum Gas

23 MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1993-08

Production History

Cum Oil: 20,721 BBL Cum Gas: 23 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

203 BBL/mo

Di (annual)

36.2%

b-factor

0.9

EUR

18,285 BBL

R-squared

0.784

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 ROYAL ORYX OG LLC 9 mo

2024-04 — 2025-10 ONE NICKEL OPERATING LLC 19 mo

2013-07 — 2024-03 SWJN OIL COMPANY 129 mo

2012-03 — 2013-06 MARTINEAU PETROLEUM, INC. 16 mo

2008-02 — 2012-02 NRPC OPERATING, LLC 49 mo

2006-04 — 2008-01 MIDLAND OPERATING, INC. 22 mo

1996-09 — 2006-03 CHAMBERS OPERATING, INC. 115 mo

1993-06 — 1996-08 PATRIOT SERVICES, INC. 39 mo

1993-01 — 1993-05 SDS PRODUCTION 5 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-335-32261	ROYAL ORYX OG LLC	1	3,350	1982-03-15