MCCASKILL

Oil · District 01 · Lease #13280

Operator: GEO-GRAPHIC PRODUCTION, INC.

Fields: PEACH CREEK (AUSTIN CHALK)

Cum Oil

66k BBL

Cum Gas

9k MCF

casinghead

Wells

1

Production

1993-01 — 2002-06

Peak Month

1996-04

Production History

Cum Oil: 65,903 BBL Cum Gas: 9,259 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,783 BBL/mo

Di (annual)

38.3%

b-factor

0.0

EUR

87,193 BBL

R-squared

0.317

type

exponential

Operator History (from monthly production reports)

2002-02 — 2002-09 EXPRESS OIL CO. 8 mo

1994-06 — 2002-01 GEO-GRAPHIC PRODUCTION, INC. 92 mo

1993-01 — 1994-05 BRIGHT & CO. 17 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-177-30938	EXPRESS OIL CO.	5	11,300	1991-07-15