JOHNSTON "K"

Oil · District 06 · Lease #12605

Operator: MARATHON OIL COMPANY

Cum Oil

3k BBL

Cum Gas

14k MCF

casinghead

Wells

1

Production

1993-01 — 1993-10

Peak Month

1993-01

Production History

Cum Oil: 2,639 BBL Cum Gas: 14,330 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

438 BBL/mo

Di (annual)

262.4%

b-factor

0.0

EUR

2,005 BBL

R-squared

0.666

type

exponential

Operator History (from monthly production reports)

1993-01 — 1994-02 MARATHON OIL COMPANY 14 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHWEST OPERATING, INC.-TYLER39,7002010-11-23