YTURRIA

Oil // district 4 // lease#13521

op: BLAKENERGY OPERATING, LLC

cum_oil

8k BBL

cum_gas

0 MCF

wells

1

production

2008-08 — 2010-02

peak_month

2008-08

-- production_history

cum_oil: 7,750 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,675 BBL/mo

Di (annual)

298.1%

b-factor

0.0

EUR

6,774 BBL

R-squared

0.767

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10LA SARA OPERATING COMPANY, LLC211,0002015-01-23
EOF // data source: Texas Railroad Commission // 2026