Price formulas in U.S. dollars a barrel, are as follows: To the U.S., as a differential to the Argus Sour Crude Index: Crude July August Change Extra Light +13.95 +5.95 -8.00 Light +12.60 +4.60 -8.00 Medium +11.40 +3.40 -8.00 Heavy +10.65 +2.65 -8.00 To Northwest Europe, as a differential to the Brent Weighted Average, or BWAVE: Crude July August Change Extra Light +17.45 +2.45 -15.00 Light +15.85 +0.85 -15.00 Medium +15.05 +0.05 -15.00 Heavy +12.65 -2.35 -15.00 To Asia, as a differential to the Oman-Dubai average: Crude July August Change Super Light +11.15 +0.15 -11.00 Extra Light +10.00 -1.00 -11.00 Light +9.50 -1.50 -11.00 Medium +7.75 -3.25 -11.00 Heavy +6.40 -4.60 -11.00 To the Mediterranean, as a differential to the Brent Weighted Average or BWAVE: Crude July August Change Extra Light +17.35 +2.35 -15.00 Light +15.65 +0.65 -15.00 Medium +15.05 +0.05 -15.00 Heavy +12.35 -2.65 -15.00