STATE TRACT 470

Oil · District 04 · Lease #12545

Operator: CHAPARRAL (USA) ENERGY, INC.

Cum Oil

115k BBL

Cum Gas

222k MCF

casinghead

Wells

1

Production

1996-02 — 2008-02

Peak Month

1996-03

Production History

Cum Oil: 115,168 BBL Cum Gas: 221,518 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,013 BBL/mo

Di (annual)

29.6%

b-factor

0.0

EUR

122,041 BBL

R-squared

0.591

type

exponential

Operator History (from monthly production reports)

2002-10 — 2011-01 CHAPARRAL ENERGY, L.L.C. 100 mo
2000-10 — 2002-09 CHAPARRAL (USA) ENERGY, INC. 24 mo
1996-02 — 2000-09 BRISTOL RESOURCES CORPORATION 56 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5CHAPARRAL ENERGY, L.L.C.512,2331995-09-06