WILLIAMS MINERAL TRUST "1"

Oil // district 8 // lease#27031

op: VAN OPERATING, LTD.

cum_oil

23k BBL

cum_gas

0 MCF

wells

2

production

1993-10 — 2011-06

peak_month

1994-12

-- production_history

cum_oil: 23,493 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

950 BBL/mo

Di (annual)

88.9%

b-factor

0.4

EUR

21,027 BBL

R-squared

0.661

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2JONES COMPANY, LTD.12,9001994-11-21
1JONES COMPANY, LTD.12,9001993-10-01
EOF // multi-state drilling data platform // 2026