Hurricane Isaac affects Oil prices

WTI light sweet crude for October delivery, added 86 cents to USD 96.33 a barrel.
Brent North Sea crude for October gained 32 cents to USD 112.58 a barrel.
Around 93 per cent of oil production and 67 per cent of natural gas production was shut in the US Gulf, and nearly a million barrels a day of refining capacity was locked up, the government said, as Isaac gained intensity to a category one hurricane over the warm water and aimed straight for New Orleans, a major refining hub.