SWAIN, O. L. #11

Oil · District 05 · Lease #3687

Operator: UNION OIL COMPANY OF CALIFORNIA

Fields: VAN (RODESSA)

Cum Oil

14k BBL

Cum Gas

63k MCF

casinghead

Wells

1

Production

2000-03 — 2026-04

Peak Month

2000-04

Production History

Cum Oil: 13,604 BBL Cum Gas: 62,822 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

275 BBL/mo

Di (annual)

80.8%

b-factor

1.0

EUR

15,196 BBL

R-squared

0.441

type

hyperbolic

Operator History (from monthly production reports)

2021-01 — 2026-07 BASA RESOURCES, INC. 67 mo
2000-03 — 2020-12 UNION OIL COMPANY OF CALIFORNIA 250 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
24BASA RESOURCES, INC.25,3702007-10-08