SWAIN, O. L. 11

Oil · District 05 · Lease #2088

Operator: UNION OIL COMPANY OF CALIFORNIA

Fields: VAN

Cum Oil

900k BBL

Cum Gas

623k MCF

casinghead

Wells

11

Production

1993-01 — 2026-04

Peak Month

1995-05

Production History

Cum Oil: 900,309 BBL Cum Gas: 623,248 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,575 BBL/mo

Di (annual)

3.2%

b-factor

0.0

EUR

777,624 BBL

R-squared

0.430

type

exponential

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 (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7BASA RESOURCES, INC.12,9222002-08-12
23BASA RESOURCES, INC.32,9002001-06-12
4BASA RESOURCES, INC.22,9242001-06-12
18BASA RESOURCES, INC.23,0901994-11-15
22BASA RESOURCES, INC.23,0001993-11-16
17BASA RESOURCES, INC.22,9401989-07-19
14BASA RESOURCES, INC.43,0501988-06-02
13BASA RESOURCES, INC.12,8001988-02-08
11BASA RESOURCES, INC.13,0601985-07-25
10BASA RESOURCES, INC.12,9501978-01-16
242-467-00517BASA RESOURCES, INC.------