L. FOSTER -5-

Oil // district 10 // lease#25454

op: RANGE PRODUCTION COMPANY

fields: CONGER (PENN)

cum_oil

8k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2011-09

peak_month

1998-10

-- production_history

cum_oil: 8,014 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

602 BBL/mo

Di (annual)

441.0%

b-factor

1.0

EUR

8,861 BBL

R-squared

0.950

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5LOMAK PRODUCTION COMPANY18,1501998-07-28
1DORCHESTER EXPLORATION, INC.18,4001977-12-20
EOF // data source: Texas Railroad Commission // 2026