JOHNSTON "K"

Oil // district 6 // lease#12605

op: MARATHON OIL COMPANY

cum_oil

3k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 1994-02

peak_month

1993-05

-- production_history

cum_oil: 2,639 BBL cum_gas: 0 MCF

-- 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

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1TXO PRODUCTION CORP.39,7002010-11-23
EOF // data source: Texas Railroad Commission // 2026