STAMBAUGH "A"

Oil · District 7B · Lease #15502

Operator: SPEER PIPE

Cum Oil

2k BBL

Cum Gas

3k MCF

casinghead

Wells

1

Production

1993-01 — 2001-12

Peak Month

1995-05

Production History

Cum Oil: 2,062 BBL Cum Gas: 3,425 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

141 BBL/mo

Di (annual)

243.6%

b-factor

0.1

EUR

768 BBL

R-squared

0.516

type

hyperbolic

Operator History (from monthly production reports)

1998-05 — 2026-07 INTERSTATE EXPLORATIONS LLC 339 mo
1998-03 — 1998-04 BIG STATE INDUSTRIES, INC. 2 mo
1993-01 — 1998-02 SPEER PIPE 62 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PALO PETROLEUM INC.23,5001980-08-22