BIG RIVER

Oil · District 03 · Lease #20563

Operator: STANTON MINERAL DEVELOPMENT INC

Fields: CALDWELL (AUSTIN CHALK)

Cum Oil

34k BBL

Cum Gas

37k MCF

casinghead

Wells

1

Production

1993-01 — 2001-06

Peak Month

1993-04

Production History

Cum Oil: 33,608 BBL Cum Gas: 36,644 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

583 BBL/mo

Di (annual)

17.1%

b-factor

0.0

EUR

40,895 BBL

R-squared

0.401

type

exponential

Operator History (from monthly production reports)

2010-11 — 2011-07 ANADARKO E&P COMPANY LP 9 mo

2004-03 — 2010-10 SQUARE ONE CORPORATION 80 mo

2002-10 — 2004-02 ATKINSON ENERGY CORPORATION 17 mo

2001-10 — 2002-09 STANTON MINERAL DEVELOPMENT INC 12 mo

2000-08 — 2001-09 OKIE OPERATING COMPANY, LTD. 14 mo

2000-05 — 2000-07 7711 CORPORATION, THE 3 mo

1995-11 — 2000-04 ATASCA RESOURCES, INC. 54 mo

1993-01 — 1995-10 IDGAS, INC. 34 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2A	42-041-31395	IDGAS INC.	2	8,250	1989-10-16