SHIVERS, J. R. 12

Oil · District 05 · Lease #3705

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

37k BBL

Cum Gas

52k MCF

casinghead

Wells

2

Production

2000-10 — 2026-04

Peak Month

2022-04

Production History

Cum Oil: 37,167 BBL Cum Gas: 51,962 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

530 BBL/mo

Di (annual)

106.4%

b-factor

0.0

EUR

5,968 BBL

R-squared

0.512

type

exponential

Operator History (from monthly production reports)

2021-01 — 2026-07 BASA RESOURCES, INC. 67 mo
2000-10 — 2020-12 UNION OIL COMPANY OF CALIFORNIA 243 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12BASA RESOURCES, INC.32,5602022-02-16
4BASA RESOURCES, INC.12,9422005-03-25