ANP -136-

Oil · District 7B · Lease #28619

Operator: RICHEY, RAY MANAGEMENT CO., INC.

Cum Oil

7k BBL

Cum Gas

3k MCF

casinghead

Wells

1

Production

1999-06 — 2004-04

Peak Month

1999-06

Production History

Cum Oil: 7,216 BBL Cum Gas: 2,504 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

595 BBL/mo

Di (annual)

361.4%

b-factor

1.0

EUR

10,289 BBL

R-squared

0.680

type

hyperbolic

Operator History (from monthly production reports)

2000-04 — 2019-12 RICHEY, RAY MANAGEMENT CO., INC. 237 mo
1999-06 — 2000-03 MITCHELL ENERGY CORPORATION 10 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1URICHEY RAY MANAGEMENT CO. INC.25,5001999-05-21