ASHTON, NORA B.

Oil · District 08 · Lease #10549

Operator: TAURUS EXPLORATION U.S.A., INC.

Fields: FUHRMAN-MASCHO

Cum Oil

59k BBL

Cum Gas

66k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

2001-07

Production History

Cum Oil: 59,289 BBL Cum Gas: 65,786 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

369 BBL/mo

Di (annual)

8.2%

b-factor

0.0

EUR

53,103 BBL

R-squared

0.556

type

exponential

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

2000-11 — 2006-04 SCYTHIAN, LTD. 66 mo

1998-12 — 2000-10 ENERGEN RESOURCES CORPORATION 23 mo

1998-03 — 1998-11 TAURUS EXPLORATION U.S.A., INC. 9 mo

1993-09 — 1998-02 BC OPERATING, INC. 54 mo

1993-01 — 1993-08 PETRO-WEST CORPORATION 8 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-003-37025	OLSEN ENERGY INC.	1	4,700	1991-11-15
1X	42-003-05485	OLSEN ENERGY INC.	--	--	--
2	42-003-05483	OLSEN ENERGY INC.	--	--	--
4 C	42-003-05482	OLSEN ENERGY INC.	--	--	--