STRAIN, E.T.

Oil // district 10 // lease#37582

op: ENERVEST OPERATING, L.L.C.

cum_oil

3k BBL

cum_gas

0 MCF

wells

1

production

2005-02 — 2008-04

peak_month

2005-02

-- production_history

cum_oil: 2,943 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

117 BBL/mo

Di (annual)

30.4%

b-factor

0.2

EUR

5,639 BBL

R-squared

0.600

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5ENERVEST OPERATING, L.L.C.23,5002009-04-13
EOF // multi-state drilling data platform // 2026