BRACKEN, J. A. 503

Oil · District 05 · Lease #2936

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

494k BBL

Cum Gas

1.2M MCF

casinghead

Wells

13

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 494,043 BBL Cum Gas: 1,245,978 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,635 BBL/mo

Di (annual)

71.9%

b-factor

0.5

EUR

430,964 BBL

R-squared

0.818

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 (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4BASA RESOURCES, INC.32,9832021-06-25
5BASA RESOURCES, INC.22,9692015-09-10
13BASA RESOURCES, INC.23,0572005-03-28
16BASA RESOURCES, INC.32,9002003-04-04
8BASA RESOURCES, INC.22,5002003-03-07
12BASA RESOURCES, INC.22,4802002-07-18
15BASA RESOURCES, INC.32,9002002-04-08
3BASA RESOURCES, INC.12,7002002-03-08
19BASA RESOURCES, INC.12,5001996-10-15
18BASA RESOURCES, INC.12,4801992-10-26
17BASA RESOURCES, INC.22,9001991-12-13
14BASA RESOURCES, INC.12,9001991-06-21
11BASA RESOURCES, INC.12,4001989-10-10