BARBER -11-

Oil // district 10 // lease#36195

op: WHITING OIL AND GAS CORPORATION

cum_oil

145k BBL

cum_gas

0 MCF

wells

4

production

2000-02 — 2026-03

peak_month

2001-03

-- production_history

cum_oil: 145,048 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,966 BBL/mo

Di (annual)

63.2%

b-factor

0.5

EUR

141,547 BBL

R-squared

0.620

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SANTA FE SNYDER CORPORATION18,3002000-12-05
4SANTA FE SNYDER CORPORATION18,3002000-10-13
2SANTA FE SNYDER CORPORATION18,3001999-11-08
1SANTA FE ENERGY RESOURCES, INC.38,0001999-05-26
EOF // multi-state drilling data platform // 2026