STONE

Oil · District 09 · Lease #28583

Operator: JOHNSON & ERNST OPERATING CO.

Cum Oil

3k BBL

Cum Gas

16 MCF

casinghead

Wells

2

Production

1993-06 — 1999-05

Peak Month

1993-07

Production History

Cum Oil: 3,166 BBL Cum Gas: 16 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

139 BBL/mo

Di (annual)

83.8%

b-factor

0.5

EUR

3,631 BBL

R-squared

0.811

type

hyperbolic

Operator History (from monthly production reports)

1993-06 — 2000-05 JOHNSON & ERNST OPERATING CO. 84 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2SEVENX, LLC22,0001999-10-04
1SEVENX, LLC12,0001991-09-19