KEYSTONE -4-

Oil // district 10 // lease#29169

op: WHITING OIL AND GAS CORPORATION

cum_oil

118k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2019-08

peak_month

2002-11

-- production_history

cum_oil: 118,044 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

583 BBL/mo

Di (annual)

12.2%

b-factor

0.0

EUR

57,395 BBL

R-squared

0.503

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHLAND ROYALTY COMPANY19,0001984-05-07
EOF // multi-state drilling data platform // 2026