WILLIAMS-MABEN

Oil · District 8A · Lease #68836

Operator: CHISHOLM OPERATING, INC.

Cum Oil

19k BBL

Cum Gas

8k MCF

casinghead

Wells

1

Production

2005-09 — 2011-06

Peak Month

2005-10

Production History

Cum Oil: 18,854 BBL Cum Gas: 7,953 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,175 BBL/mo

Di (annual)

258.4%

b-factor

1.1

EUR

31,149 BBL

R-squared

0.844

type

hyperbolic

Operator History (from monthly production reports)

2005-09 — 2026-07 CHISHOLM OPERATING, INC. 251 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CHISHOLM OPERATING, INC.25,9992011-09-02