CHAPMAN

Oil · District 04 · Lease #12508

Operator: GEISER OPERATING, INC.

Cum Oil

136k BBL

Cum Gas

265k MCF

casinghead

Wells

3

Production

1995-11 — 2003-07

Peak Month

1996-10

Production History

Cum Oil: 135,965 BBL Cum Gas: 265,065 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,829 BBL/mo

Di (annual)

151.2%

b-factor

0.3

EUR

111,375 BBL

R-squared

0.922

type

hyperbolic

Operator History (from monthly production reports)

2005-11 — 2019-09 GEISER OPERATING, INC. 167 mo
1995-11 — 2005-10 GEISER, D. ALLEN 120 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
441 TGEISER D. ALLEN47,5002005-05-20
433GEISER OPERATING INC.17,5001996-03-21
431GEISER OPERATING INC.27,5001995-10-11