LANGE '4'

Oil · District 7C · Lease #15213

Operator: ANADARKO PETROLEUM CORPORATION

Cum Oil

2k BBL

Cum Gas

46k MCF

casinghead

Wells

1

Production

2001-04 — 2004-08

Peak Month

2001-12

Production History

Cum Oil: 1,609 BBL Cum Gas: 45,710 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

155 BBL/mo

Di (annual)

153.4%

b-factor

0.2

EUR

1,489 BBL

R-squared

0.936

type

hyperbolic

Operator History (from monthly production reports)

2001-04 — 2006-02 ANADARKO PETROLEUM CORPORATION 59 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ANADARKO PETROLEUM CORPORATION28,9002002-01-09