DUNCAN HEIRS UNIT

Oil · District 6 · Lease #14367

Operator: SOUTHWESTERN ENERGY PROD. CO.

Cum Oil

25k BBL

Cum Gas

0 MCF

Wells

1

Production

2003-11 — 2026-03

Peak Month

2003-12

Production History

Cum Oil: 24,647 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

771 BBL/mo

Di (annual)

379.2%

b-factor

1.4

EUR

24,013 BBL

R-squared

0.441

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HSOUTHWESTERN ENERGY PROD. CO.28,4002003-09-03
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