CR FOSTER

Oil // district 10 // lease#44391

op: OXYROCK OPERATING, LLC

cum_oil

9k BBL

cum_gas

0 MCF

wells

1

production

2012-09 — 2026-03

peak_month

2014-04

-- production_history

cum_oil: 8,588 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

85 BBL/mo

Di (annual)

9.6%

b-factor

0.0

EUR

10,440 BBL

R-squared

0.310

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4116MAK-J ENERGY PARTNERS(TX),LTD.310,0002013-01-16
EOF // data source: Texas Railroad Commission // 2026