WITCHER, J. E. -A-

Oil · District 10 · Lease #1574

Operator: OCCIDENTAL PERMIAN LTD.

Fields: FOSTER

Cum Oil

646k BBL

Cum Gas

0 MCF

Wells

20

Production

1993-01 — 2026-03

Peak Month

2006-04

Production History

Cum Oil: 646,078 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,405 BBL/mo

Di (annual)

16.3%

b-factor

0.1

EUR

358,996 BBL

R-squared

0.756

type

hyperbolic

Wells (20)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
20OCCIDENTAL PERMIAN LTD.15,0002006-02-14
21OCCIDENTAL PERMIAN LTD.15,0002006-02-14
19OCCIDENTAL PERMIAN LTD.14,6002004-01-09
16OCCIDENTAL PERMIAN LTD.14,6002001-03-12
18OCCIDENTAL PERMIAN LTD.14,6002001-02-15
15SHELL OIL COMPANY14,6001983-10-06
15WSHELL OIL COMPANY14,6001983-10-06
13SHELL OIL COMPANY14,6001983-10-04
14SHELL OIL COMPANY14,6001983-10-03
12SHELL OIL COMPANY14,6001981-02-13
10WS42-135-30396--------
11WS42-135-80560--------
1W42-135-06854--------
2W42-135-06855--------
442-135-06857--------
542-135-06858--------
642-135-06859--------
7W42-135-06860--------
842-135-06861--------
9W42-135-06862--------
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