COOK 42

Oil · District 05 · Lease #3245

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

25k BBL

Cum Gas

55k MCF

casinghead

Wells

4

Production

1993-01 — 2008-05

Peak Month

1995-09

Production History

Cum Oil: 25,307 BBL Cum Gas: 54,512 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

981 BBL/mo

Di (annual)

82.5%

b-factor

0.3

EUR

20,223 BBL

R-squared

0.769

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 2018-09 UNION OIL COMPANY OF CALIFORNIA 309 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9UNION OIL COMPANY OF CALIFORNIA22,5152001-02-23
10UNION OIL COMPANY OF CALIFORNIA23,3102001-01-16
1BASA RESOURCES, INC.13,0171995-10-11
4BASA RESOURCES, INC.12,9771995-08-23