VOL. XLV

No 16

22-April-2002

OPEC

Crude OilFormulas/Posted Prices ($/B)

Yemen(Dated Brent +/- Adjustment Factor;$/B)

2002

2001

May

Apr

Mar

Feb

Jan

Dec

Nov

Oct

Sep

Aug

Jul

Marib Light (40コ)

-0.52

0.00

0.00

-0.20

-0.50

-0.60

-0.55

Parity

Parity

-0.23

-0.23

Masila (30コ)

-0.55

-0.60

-0.45

-0.69

-1.08

-0.87

-1.25

-0.70

-1.03

-1.45

-1.45