MOBIL FEE

Oil · District 08 · Lease #34522

Operator: SONAT EXPLORATION CO. - MIDLAND

Fields: FULLERTON

Cum Oil

414k BBL

Cum Gas

773k MCF

casinghead

Wells

6

Production

1995-04 — 2026-04

Peak Month

1997-12

Production History

Cum Oil: 413,935 BBL Cum Gas: 773,403 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,063 BBL/mo

Di (annual)

23.8%

b-factor

0.7

EUR

420,384 BBL

R-squared

0.913

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 OLSEN ENERGY INC. 19 mo

2023-12 — 2024-12 SILVER CROSS ENERGY PARTNERS LLC 13 mo

2006-05 — 2023-11 ENDEAVOR ENERGY RESOURCES L.P. 211 mo

2002-01 — 2006-04 SCYTHIAN, LTD. 52 mo

1997-01 — 2001-12 PRIMAL ENERGY CORPORATION 60 mo

1995-04 — 1996-12 SONAT EXPLORATION CO. - MIDLAND 21 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1804	42-003-38413	OLSEN ENERGY INC.	1	7,300	1998-04-28
1802	42-003-38162	OLSEN ENERGY INC.	1	7,300	1997-02-28
1803	42-003-38161	OLSEN ENERGY INC.	1	7,300	1997-02-28
1801	42-003-38084	OLSEN ENERGY INC.	1	8,000	1996-11-27
1902	42-003-37699	OLSEN ENERGY INC.	1	8,000	1995-08-11
1901	42-003-37619	OLSEN ENERGY INC.	1	7,500	1995-02-23