CHALK -A-

Oil // district 10 // lease#31451

op: EXCEL ENERGY CO.

cum_oil

23k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2012-03

peak_month

1993-05

-- production_history

cum_oil: 23,472 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

154 BBL/mo

Di (annual)

6.8%

b-factor

0.9

EUR

39,179 BBL

R-squared

0.806

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11EXCEL ENERGY CO.37,4752005-10-24
10CALLEY, BOB12,6001987-08-24
EOF // multi-state drilling data platform // 2026