GLADNEY

Oil · District 6 · Lease #13804

Operator: SANDRIDGE EXPL. AND PROD., LLC

Cum Oil

236k BBL

Cum Gas

0 MCF

Wells

4

Production

1997-10 — 2026-03

Peak Month

1998-04

Production History

Cum Oil: 235,584 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,180 BBL/mo

Di (annual)

20.5%

b-factor

0.2

EUR

229,453 BBL

R-squared

0.915

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7NATIONAL ENERGY GROUP, INC.37,5001998-04-28
8NATIONAL ENERGY GROUP, INC.17,5001998-02-17
4POWELL, GENE INVESTMENTS, INC.411,0001997-09-30
4 UPOWELL, GENE INVESTMENTS, INC.411,0001997-09-30
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