WEST GRAYBURG UNIT

Oil · District 08 · Lease #20416

Operator: OCCIDENTAL PERMIAN LTD.

Fields: COWDEN, SOUTH

Cum Oil

951k BBL

Cum Gas

257k MCF

casinghead

Wells

41

Production

1993-01 — 2026-04

Peak Month

1994-05

Production History

Cum Oil: 950,512 BBL Cum Gas: 257,040 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,092 BBL/mo

Di (annual)

4.5%

b-factor

0.0

EUR

972,104 BBL

R-squared

0.659

type

exponential

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 (41)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7WOCCIDENTAL PERMIAN LTD.14,6002016-07-12
37OCCIDENTAL PERMIAN LTD.24,5002011-06-22
38OCCIDENTAL PERMIAN LTD.14,5002011-06-22
39OCCIDENTAL PERMIAN LTD.14,5002011-06-22
40OCCIDENTAL PERMIAN LTD.24,5002011-06-22
15OCCIDENTAL PERMIAN LTD.14,2781993-09-24
1WOCCIDENTAL PERMIAN LTD.15,3001980-07-09
2WOCCIDENTAL PERMIAN LTD.15,3001980-07-09
35WOCCIDENTAL PERMIAN LTD.15,3001980-07-09
36WOCCIDENTAL PERMIAN LTD.15,3001980-07-09
26WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
27WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
28WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
29WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
30WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
31WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
34WOCCIDENTAL PERMIAN LTD.14,5001977-07-29
32OCCIDENTAL PERMIAN LTD.14,5001977-07-26
33OCCIDENTAL PERMIAN LTD.14,5001977-07-26
142-135-07932OCCIDENTAL PERMIAN LTD.------
1042-135-07930OCCIDENTAL PERMIAN LTD.------
1142-135-07928OCCIDENTAL PERMIAN LTD.------
1242-135-02339OCCIDENTAL PERMIAN LTD.------
1342-135-07924OCCIDENTAL PERMIAN LTD.------
1442-135-02170OCCIDENTAL PERMIAN LTD.------
1642-135-02172OCCIDENTAL PERMIAN LTD.------
1742-135-02173OCCIDENTAL PERMIAN LTD.------
1842-135-07891OCCIDENTAL PERMIAN LTD.------
1942-135-02174OCCIDENTAL PERMIAN LTD.------
242-135-07927OCCIDENTAL PERMIAN LTD.------
2042-135-02171OCCIDENTAL PERMIAN LTD.------
2142-135-07889OCCIDENTAL PERMIAN LTD.------
22W42-135-21547OCCIDENTAL PERMIAN LTD.------
23W42-135-30083OCCIDENTAL PERMIAN LTD.------
24W42-135-30085OCCIDENTAL PERMIAN LTD.------
25W42-135-30074OCCIDENTAL PERMIAN LTD.------
342-135-08079OCCIDENTAL PERMIAN LTD.------
442-135-07925OCCIDENTAL PERMIAN LTD.------
542-135-07926OCCIDENTAL PERMIAN LTD.------
642-135-07929OCCIDENTAL PERMIAN LTD.------
942-135-08896OCCIDENTAL PERMIAN LTD.------