Eugen Weinberg, a commodity analyst at Commerzbank AG, talks with Bloomberg's Nina De Roy and Mark Barton from Frankfurt about oil prices, the threat posed by Hurricane Gustav to U.S. oil rigs and the outlook for supply and demand. Crude oil headed for its biggest weekly gain in almost two months and natural gas rose as producers evacuated rigs before the arrival of Gustav, forecast to be the largest hurricane in the Gulf of Mexico since Katrina.