YORK, W. A. 13

Oil · District 5 · Lease #3169

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

476k BBL

Cum Gas

0 MCF

Wells

11

Production

1993-01 — 2026-03

Peak Month

1994-12

Production History

Cum Oil: 476,183 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

13,259 BBL/mo

Di (annual)

101.6%

b-factor

0.5

EUR

301,553 BBL

R-squared

0.858

type

hyperbolic

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
18UNION OIL COMPANY OF CALIFORNIA23,0782021-06-25
16UNOCAL EXPLORATION CORPORATION22,9002005-04-22
17UNION OIL COMPANY OF CALIFORNIA22,4052005-03-30
14UNOCAL EXPLORATION CORPORATION22,9002005-03-28
11UNION OIL COMPANY OF CALIFORNIA23,2502002-10-04
1UNION OIL COMPANY OF CALIFORNIA32,9442002-04-09
19UNION OIL COMPANY OF CALIFORNIA12,5501994-10-13
5UNION OIL COMPANY OF CALIFORNIA13,0101994-08-31
15UNOCAL EXPLORATION CORPORATION12,9001992-01-22
13UNOCAL EXPLORATION CORPORATION12,9001991-07-29
7UNION EXPL. PARTNERS, LTD.12,3301989-02-24
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