HARTMAN

Oil · District 02 · Lease #8400

Operator: PHILLIPS PETROLEUM COMPANY

Cum Oil

16k BBL

Cum Gas

294k MCF

casinghead

Wells

1

Production

1998-09 — 2005-05

Peak Month

1999-08

Production History

Cum Oil: 15,521 BBL Cum Gas: 293,665 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

428 BBL/mo

Di (annual)

34.6%

b-factor

0.0

EUR

14,817 BBL

R-squared

0.420

type

exponential

Operator History (from monthly production reports)

2003-01 — 2008-03 CONOCOPHILLIPS COMPANY 63 mo
1998-09 — 2002-12 PHILLIPS PETROLEUM COMPANY 52 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNION GAS OPERATING COMPANY18,5001998-08-07