< leases

WILLIAM, W.

Oil · District 8A · Lease #67627

Operator: WHITING OIL AND GAS CORPORATION

Fields: BILLY (ABO)

Cum Oil

38k BBL

Cum Gas

4k MCF

casinghead

Wells

1

Production

1996-09 — 2005-08

Peak Month

1996-10

Production History

Cum Oil: 37,758 BBL Cum Gas: 3,542 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

494 BBL/mo

Di (annual)

18.7%

b-factor

2.0

EUR

109,142 BBL

R-squared

0.518

type

hyperbolic

Operator History (from monthly production reports)

2004-10 — 2006-07 WHITING OIL AND GAS CORPORATION 22 mo
2002-06 — 2004-09 CROWNQUEST OPERATING, LLC 28 mo
2001-01 — 2002-05 BURLINGTON RES O&G CO-PERMIAN 17 mo
1996-09 — 2000-12 BURLINGTON RESOURCES OIL&GAS CO. 52 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-279-30336EXTEX OPERATING COMPANY27,1501996-04-30