< leases

ALBERT T.

Oil · District 8A · Lease #67766

Operator: WHITING OIL AND GAS CORPORATION

Fields: BILLY (ABO)

Cum Oil

47k BBL

Cum Gas

6k MCF

casinghead

Wells

1

Production

1997-08 — 2005-08

Peak Month

1997-09

Production History

Cum Oil: 47,156 BBL Cum Gas: 5,564 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,710 BBL/mo

Di (annual)

220.6%

b-factor

1.0

EUR

69,508 BBL

R-squared

0.907

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
1997-08 — 2000-12 BURLINGTON RESOURCES OIL&GAS CO. 41 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-279-30342EXTEX OPERATING COMPANY16,9501997-03-24