BECK UNIT

Oil // district 1 // lease#15693

op: MARATHON OIL EF LLC

cum_oil

142k BBL

cum_gas

0 MCF

wells

1

production

2011-12 — 2026-03

peak_month

2012-03

-- production_history

cum_oil: 142,441 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,682 BBL/mo

Di (annual)

122.1%

b-factor

0.8

EUR

112,874 BBL

R-squared

0.599

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL COMPANY115,5002011-09-21
EOF // data source: Texas Railroad Commission // 2026