ROCKER B -84-

Oil · District 7C · Lease #6386

Operator: JM COX RESOURCES, L.P.

Cum Oil

55k BBL

Cum Gas

301k MCF

casinghead

Wells

8

Production

1993-01 — 2018-10

Peak Month

1993-05

Production History

Cum Oil: 55,022 BBL Cum Gas: 301,128 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

363 BBL/mo

Di (annual)

7.7%

b-factor

0.0

EUR

55,039 BBL

R-squared

0.726

type

exponential

Operator History (from monthly production reports)

2018-08 — 2026-07 DISCOVERY NATURAL RESOURCES LLC 96 mo
2003-10 — 2018-07 JM COX RESOURCES, L.P. 178 mo
1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9DISCOVERY NATURAL RESOURCES LLC17,5001985-02-06
242-235-30333DISCOVERY NATURAL RESOURCES LLC------
342-235-30395DISCOVERY NATURAL RESOURCES LLC------
442-235-30396DISCOVERY NATURAL RESOURCES LLC------
542-235-30370DISCOVERY NATURAL RESOURCES LLC------
642-235-30377DISCOVERY NATURAL RESOURCES LLC------
742-235-30397DISCOVERY NATURAL RESOURCES LLC------
842-235-30398DISCOVERY NATURAL RESOURCES LLC------