< leases

FOSTER, J. R.

Oil · District 04 · Lease #13240

Operator: LINN OPERATING, LLC

Fields: HAGIST RANCH (UPPER WILCOX F)

Cum Oil

118k BBL

Cum Gas

552k MCF

casinghead

Wells

2

Production

2004-06 — 2026-04

Peak Month

2019-05

Production History

Cum Oil: 118,177 BBL Cum Gas: 551,977 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,567 BBL/mo

Di (annual)

87.4%

b-factor

1.2

EUR

101,194 BBL

R-squared

0.499

type

hyperbolic

Operator History (from monthly production reports)

2017-08 — 2026-07 HILCORP ENERGY COMPANY 108 mo
2017-05 — 2017-07 LINN OPERATING, LLC 3 mo
2014-08 — 2017-04 LINN OPERATING, INC. 33 mo
2006-01 — 2014-07 DEVON ENERGY PRODUCTION CO, L.P. 103 mo
2004-06 — 2005-12 DEVON LOUISIANA CORPORATION 19 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1942-131-00134HILCORP ENERGY COMPANY18,0002006-02-06
242-131-00132HILCORP ENERGY COMPANY49,7022004-05-18