WINDHAM, R. S.

Oil // district 9 // lease#14534

op: BP AMERICA PRODUCTION COMPANY

cum_oil

121k BBL

cum_gas

0 MCF

wells

4

production

1997-02 — 2026-03

peak_month

2014-08

-- production_history

cum_oil: 121,021 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,628 BBL/mo

Di (annual)

45.7%

b-factor

0.4

EUR

68,991 BBL

R-squared

0.649

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8ARCO PERMIAN511,9902016-06-24
1APACHE CORPORATION111,1002014-02-21
2ARCO PERMIAN112,4791997-07-22
6ARCO PERMIAN19,4301996-11-14
EOF // data source: Texas Railroad Commission // 2026