FOSTER, W. L., JR., -B-

Oil · District 10 · Lease #4666

Operator: XOG OPERATING LLC

Cum Oil

40k BBL

Cum Gas

0 MCF

Wells

10

Production

1993-01 — 2026-03

Peak Month

1993-01

Production History

Cum Oil: 39,840 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

384 BBL/mo

Di (annual)

12.1%

b-factor

0.0

EUR

38,137 BBL

R-squared

0.685

type

exponential

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
18 UUNION OIL COMPANY OF CALIFORNIA23,2001989-02-17
19 UUNION OIL COMPANY OF CALIFORNIA23,2001988-12-22
21 UUNION OIL COMPANY OF CALIFORNIA13,0001987-05-19
22 UUNION OIL COMPANY OF CALIFORNIA13,0001987-05-19
23WUNION OIL COMPANY OF CALIFORNIA13,0001987-05-19
20 UUNION OIL COMPANY OF CALIFORNIA13,2001986-09-29
5UNION OIL COMPANY OF CALIFORNIA11,3941983-10-25
242-431-00517--------
342-431-00518--------
442-431-00519--------
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