HARLAN ETAL

Oil · District 04 · Lease #12643

Operator: HARPER HEFTE, INC.

Cum Oil

1k BBL

Cum Gas

0 MCF

Wells

1

Production

1997-01 — 1998-10

Peak Month

1997-02

Production History

Cum Oil: 1,330 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

246 BBL/mo

Di (annual)

966.8%

b-factor

1.1

EUR

2,254 BBL

R-squared

0.727

type

hyperbolic

Operator History (from monthly production reports)

1997-01 — 1999-01 HARPER HEFTE, INC. 25 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HARPER HEFTE INC.17,2001996-12-10