Sept 12 - Mexican state oil company Pemex revised its

October term pricing formulas for crude shipped to customers in

the Americas, Europe and Asia, the company's trading arm said on

Friday.

The following table lists adjustments to price constants for

Pemex's flagship Maya heavy crude oil, as well as its Zapoteco,

Istmo and Olmeca grades marketed to the company's international

buyers by region.

DESTINATION SEPTEMBER OCTOBER

CONSTANT CONSTANT

---------------- ---------------- ---------------

U.S. Gulf Coast,

The Americas'

Atlantic Coast,

The Caribbean

Maya crude -6.20 -6.75

Zapoteco crude -2.40 -3.65

Istmo crude -1.55 -2.75

Olmeca crude 0.15 -0.65

U.S. West Coast,

The Americas'

Pacific Coast

Maya crude -4.85 -4.95

Zapoteco crude -0.40 -0.95

-2.75 -3.10

Istmo crude

Olmeca crude -0.45 -0.75

Europe and the

Middle East

Maya crude -5.50 -6.60

Zapoteco crude -5.40 -5.80

-4.85 -5.60

Istmo crude

Olmeca crude -3.95 -4.30

India

Maya crude -6.90 -7.15

Zapoteco crude -5.40 -5.90

-4.80 -5.00

Istmo crude

Olmeca crude -3.60 -4.05

Far East

Maya crude -5.40 -6.10

Zapoteco crude -1.25 -2.25

-3.75 -4.50

Istmo crude

Olmeca crude -3.55 -4.40

---------------- --------------- ---------------