Oil prices tumble again on US surprise supply jump

Light, sweet crude for August delivery is down $6.44 at $132.30 a barrel in morning trading on the New York Mercantile Exchange.

The Energy Information Administration reported U.S. crude oil supplies jumped by 3 million barrels last week. That is the opposite of the 3 million barrel decline analysts surveyed by energy research firm Platts expected.

Gasoline supplies also jumped unexpectedly.