YORK, W. A. 13

Oil · District 5 · Lease #1214

Operator: UNION OIL COMPANY OF CALIFORNIA

Fields: VAN

Cum Oil

728k BBL

Cum Gas

0 MCF

Wells

11

Production

1993-01 — 2026-03

Peak Month

1994-10

Production History

Cum Oil: 727,714 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

6,780 BBL/mo

Di (annual)

37.4%

b-factor

0.9

EUR

595,783 BBL

R-squared

0.752

type

hyperbolic

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
20UNION OIL COMPANY OF CALIFORNIA33,0502026-02-27
18UNION OIL COMPANY OF CALIFORNIA23,0782021-06-25
8UNION OIL COMPANY OF CALIFORNIA23,1022016-01-07
6UNION OIL COMPANY OF CALIFORNIA13,0772005-08-08
5UNION OIL COMPANY OF CALIFORNIA13,0101994-08-31
12UNOCAL EXPLORATION CORPORATION13,1001990-11-09
10UNION EXPL. PARTNERS, LTD.13,0301990-05-03
9UNION EXPL. PARTNERS, LTD.13,0501989-11-08
242-467-00553--------
342-467-80108--------
442-467-00555--------
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