DOWNIE RANCH

Oil · District 08 · Lease #30321

Operator: SHELL WESTERN E&P INC.

Cum Oil

188k BBL

Cum Gas

465k MCF

casinghead

Wells

1

Production

1993-01 — 2008-04

Peak Month

1993-01

Production History

Cum Oil: 187,891 BBL Cum Gas: 465,197 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,461 BBL/mo

Di (annual)

15.1%

b-factor

0.0

EUR

195,407 BBL

R-squared

0.715

type

exponential

Operator History (from monthly production reports)

2007-06 — 2009-05 SANDRIDGE ENERGY, INC. 24 mo
1996-05 — 2007-05 HUNTINGTON ENERGY, L.L.C. 133 mo
1995-03 — 1996-04 SAMIS OIL COMPANY, INC. 14 mo
1993-01 — 1995-02 SHELL WESTERN E&P INC. 26 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
407LONGFELLOW ENERGY, LP13,5001985-10-21