CUMBIE, J. E. 32

Oil · District 05 · Lease #1159

Operator: UNION OIL COMPANY OF CALIFORNIA

Fields: VAN

Cum Oil

161k BBL

Cum Gas

76k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1993-06

Production History

Cum Oil: 160,506 BBL Cum Gas: 76,381 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,358 BBL/mo

Di (annual)

84.8%

b-factor

0.6

EUR

168,256 BBL

R-squared

0.849

type

hyperbolic

Operator History (from monthly production reports)

2021-01 — 2026-07 BASA RESOURCES, INC. 67 mo
1993-01 — 2020-12 UNION OIL COMPANY OF CALIFORNIA 336 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5BASA RESOURCES, INC.23,1501993-06-03
2BASA RESOURCES, INC.12,9501990-11-16
142-467-00600BASA RESOURCES, INC.------