ANP -151-

Oil · District 7B · Lease #28203

Operator: RICHEY, RAY MANAGEMENT CO., INC.

Cum Oil

19k BBL

Cum Gas

17k MCF

casinghead

Wells

2

Production

1997-05 — 2000-08

Peak Month

1997-07

Production History

Cum Oil: 18,508 BBL Cum Gas: 17,045 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,197 BBL/mo

Di (annual)

354.4%

b-factor

0.5

EUR

14,616 BBL

R-squared

0.893

type

hyperbolic

Operator History (from monthly production reports)

2000-04 — 2020-01 RICHEY, RAY MANAGEMENT CO., INC. 238 mo
1997-05 — 2000-03 MITCHELL ENERGY CORPORATION 35 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MITCHELL ENERGY CORPORATION35,3501997-05-01
1UMITCHELL ENERGY CORPORATION35,3501997-05-01