WITCHER, J. E. -A-

Oil · District 08 · Lease #1574

Operator: OCCIDENTAL PERMIAN LTD.

Fields: FOSTER

Cum Oil

647k BBL

Cum Gas

222k MCF

casinghead

Wells

20

Production

1993-01 — 2026-04

Peak Month

2006-04

Production History

Cum Oil: 647,377 BBL Cum Gas: 221,941 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,370 BBL/mo

Di (annual)

16.1%

b-factor

0.1

EUR

359,035 BBL

R-squared

0.761

type

hyperbolic

Operator History (from monthly production reports)

2000-05 — 2026-07 OCCIDENTAL PERMIAN LTD. 315 mo
1997-03 — 2000-04 ALTURA ENERGY LTD. 38 mo
1993-01 — 1997-02 AMOCO PRODUCTION COMPANY 50 mo

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
15OCCIDENTAL PERMIAN LTD.14,6001983-10-06
15WOCCIDENTAL PERMIAN LTD.14,6001983-10-06
13OCCIDENTAL PERMIAN LTD.14,6001983-10-04
14OCCIDENTAL PERMIAN LTD.14,6001983-10-03
12OCCIDENTAL PERMIAN LTD.14,6001981-02-13
10WS42-135-30396OCCIDENTAL PERMIAN LTD.------
11WS42-135-80560OCCIDENTAL PERMIAN LTD.------
1W42-135-06854OCCIDENTAL PERMIAN LTD.------
2W42-135-06855OCCIDENTAL PERMIAN LTD.------
442-135-06857OCCIDENTAL PERMIAN LTD.------
542-135-06858OCCIDENTAL PERMIAN LTD.------
642-135-06859OCCIDENTAL PERMIAN LTD.------
7W42-135-06860OCCIDENTAL PERMIAN LTD.------
842-135-06861OCCIDENTAL PERMIAN LTD.------
9W42-135-06862OCCIDENTAL PERMIAN LTD.------