RINGO -E-

Oil · District 7C · Lease #4087

Operator: JM COX RESOURCES, L.P.

Cum Oil

27k BBL

Cum Gas

204k MCF

casinghead

Wells

2

Production

1993-01 — 2009-08

Peak Month

1993-10

Production History

Cum Oil: 27,184 BBL Cum Gas: 204,150 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

183 BBL/mo

Di (annual)

12.1%

b-factor

0.0

EUR

17,988 BBL

R-squared

0.464

type

exponential

Operator History (from monthly production reports)

2003-10 — 2010-01 JM COX RESOURCES, L.P. 76 mo
1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2JM COX RESOURCES L.P.18,0001984-12-19
142-383-10059JM COX RESOURCES L.P.------