BRAWNER -10-

Oil · District 05 · Lease #3271

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

24k BBL

Cum Gas

92k MCF

casinghead

Wells

3

Production

1993-01 — 2013-09

Peak Month

2002-03

Production History

Cum Oil: 24,299 BBL Cum Gas: 92,220 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

310 BBL/mo

Di (annual)

51.1%

b-factor

0.8

EUR

19,470 BBL

R-squared

0.576

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 2015-11 UNION OIL COMPANY OF CALIFORNIA 275 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
26BASA RESOURCES, INC.33,2002001-06-27
10BASA RESOURCES INC.12,9541988-06-23
8BASA RESOURCES, INC.12,9541988-06-13