THOMPSON, I. W. 401

Oil · District 05 · Lease #3187

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

502k BBL

Cum Gas

1.4M MCF

casinghead

Wells

16

Production

1993-01 — 2026-04

Peak Month

1995-06

Production History

Cum Oil: 502,285 BBL Cum Gas: 1,405,074 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,436 BBL/mo

Di (annual)

13.7%

b-factor

0.0

EUR

212,999 BBL

R-squared

0.319

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 (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8BASA RESOURCES, INC.33,0042025-03-10
19BASA RESOURCES, INC.33,1502013-12-13
15BASA RESOURCES, INC.33,1102013-12-09
24BASA RESOURCES, INC.33,0102005-01-24
12BASA RESOURCES, INC.32,4402002-10-01
16BASA RESOURCES, INC.32,4252002-10-01
17BASA RESOURCES, INC.23,0462002-04-15
27BASA RESOURCES, INC.32,4502002-04-08
21BASA RESOURCES, INC.22,9002001-02-23
22BASA RESOURCES, INC.22,9002000-08-11
26BASA RESOURCES, INC.23,0002000-06-07
6BASA RESOURCES, INC.12,6002000-02-02
14BASA RESOURCES, INC.22,9751997-03-25
23BASA RESOURCES, INC.16,0001993-06-28
20BASA RESOURCES, INC.12,9001991-07-29
11BASA RESOURCES, INC.12,3501987-09-14