GFELLER "A"

Oil · District 09 · Lease #28987

Operator: MADISON OIL COMPANY

Cum Oil

40k BBL

Cum Gas

0 MCF

Wells

1

Production

1995-06 — 2000-11

Peak Month

1997-03

Production History

Cum Oil: 40,295 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,756 BBL/mo

Di (annual)

84.0%

b-factor

0.0

EUR

25,073 BBL

R-squared

0.947

type

exponential

Operator History (from monthly production reports)

1999-01 — 2008-03 DIMOCK OPERATING COMPANY 111 mo
1995-06 — 1998-12 MADISON OIL COMPANY 43 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIMOCK OPERATING COMPANY15,0001995-03-07