JOHNSON "B" 42

Oil // district 10 // lease#32846

op: WHITING OIL AND GAS CORPORATION

cum_oil

49k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2015-07

peak_month

1993-02

-- production_history

cum_oil: 48,808 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,346 BBL/mo

Di (annual)

38.9%

b-factor

0.0

EUR

41,470 BBL

R-squared

0.891

type

exponential

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5RICHMOND PETROLEUM INC.16,0001990-12-12
4RICHMOND PETROLEUM INC.16,0001990-12-11
3RICHMOND PETROLEUM INC.16,0001990-12-03
2RICHMOND PETROLEUM INC.16,0001990-10-05
1RICHMOND PETROLEUM INC.16,5001990-07-13
EOF // data source: Texas Railroad Commission // 2026