BERRYMAN

Oil // district 8 // lease#28518

op: WALTER EXPLORATION INC.

cum_oil

102k BBL

cum_gas

0 MCF

wells

6

production

1998-07 — 2026-03

peak_month

2002-10

-- production_history

cum_oil: 101,555 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,853 BBL/mo

Di (annual)

70.7%

b-factor

0.3

EUR

68,966 BBL

R-squared

0.944

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8WALTER EXPLORATION COMPANY14,7002003-01-27
4WALTER EXPLORATION INC.24,7002002-11-05
7WALTER EXPLORATION COMPANY14,7002002-08-08
6WALTER EXPLORATION COMPANY14,7002002-05-06
5WALTER EXPLORATION COMPANY14,7002002-03-14
2WALTER EXPLORATION INC.14,7002001-03-14
EOF // data source: Texas Railroad Commission // 2026