Jabarkan Pranala njaba dari Lenga patra dalam bahasa jawa

The Hydrogen Expedition The first circumnavigation of the globe in a hydrogen fuel cell powered boat

The Politics of Oil - A report on the oil industry's influence of lawmakers and public policy by the Center for Public Integrity.

American Petroleum Institute - A site run by the American Petroleum Institute, the trade association of the US oil industry.

US Energy Information Administration - Part of the informative website of the US Government's Energy Information Administration.