COOK, SEC. 81

Oil · District 7B · Lease #25159

Operator: YOUNG, MARSHALL R., OIL CO.

Cum Oil

28k BBL

Cum Gas

217k MCF

casinghead

Wells

1

Production

1993-01 — 2002-10

Peak Month

2002-01

Production History

Cum Oil: 28,363 BBL Cum Gas: 216,927 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

666 BBL/mo

Di (annual)

52.5%

b-factor

0.0

EUR

15,205 BBL

R-squared

0.809

type

exponential

Operator History (from monthly production reports)

1998-11 — 2008-08 STASNEY, H. R. & SONS, LTD. 118 mo
1993-01 — 1998-10 YOUNG, MARSHALL R., OIL CO. 70 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15STASNEY WELL SERVICE LLC15,3001988-10-18