PIPER

Oil // district 10 // lease#34553

op: WHITING OIL AND GAS CORPORATION

fields: COSTA (TUBB)

cum_oil

11k BBL

cum_gas

0 MCF

wells

1

production

1995-06 — 2022-07

peak_month

1995-08

-- production_history

cum_oil: 10,941 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,125 BBL/mo

Di (annual)

462.2%

b-factor

0.0

EUR

8,212 BBL

R-squared

0.754

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WALKER, KENT24,2001996-04-26
EOF // data source: Texas Railroad Commission // 2026