STEPHENSON "A"

Oil · District 6 · Lease #14424

Operator: SOUTHWESTERN ENERGY PROD. CO.

Cum Oil

4k BBL

Cum Gas

0 MCF

Wells

1

Production

2005-05 — 2026-03

Peak Month

2005-06

Production History

Cum Oil: 4,477 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

148 BBL/mo

Di (annual)

49.5%

b-factor

0.1

EUR

3,934 BBL

R-squared

0.628

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHWESTERN ENERGY PROD. CO.39,0002005-01-11
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