< leases

BARBER -11-

Oil · District 08 · Lease #36195

Operator: WHITING OIL AND GAS CORPORATION

Fields: SIGNAL PEAK (WOLFCAMP)

Cum Oil

145k BBL

Cum Gas

1.9M MCF

casinghead

Wells

4

Production

2000-02 — 2026-04

Peak Month

2001-03

Production History

Cum Oil: 145,152 BBL Cum Gas: 1,934,480 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,663 BBL/mo

Di (annual)

40.5%

b-factor

0.4

EUR

126,792 BBL

R-squared

0.645

type

hyperbolic

Operator History (from monthly production reports)

2023-01 — 2026-07 HIGHPEAK ENERGY HOLDINGS, LLC 43 mo
2004-10 — 2022-12 WHITING OIL AND GAS CORPORATION 219 mo
2003-10 — 2004-09 CROWNQUEST OPERATING, LLC 12 mo
2002-12 — 2003-09 L.C.S. PRODUCTION COMPANY 10 mo
2002-11 — 2002-11 DEVON ENERGY PRODUCTION CO, L.P. 1 mo
2000-11 — 2002-10 DEVON SFS OPERATING, INC. 24 mo
2000-02 — 2000-10 SANTA FE SNYDER CORPORATION 9 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-227-35629HIGHPEAK ENERGY HOLDINGS, LLC18,3002000-12-05
442-227-35602HIGHPEAK ENERGY HOLDINGS, LLC18,3002000-10-13
242-227-35417HIGHPEAK ENERGY HOLDINGS, LLC18,3001999-11-08
142-227-35337HIGHPEAK ENERGY HOLDINGS, LLC38,0001999-05-26