Here is a run down of where the USA gets its energy
Energy
40% Petroleum (oil)
24% Coal
23% Natural Gas
8.4% Nuclear
7.3% renewable sourcesElectricity and Transportation is are the biggest uses of energy in the US
Electricity
50% Coal
20% Nuclear
7% Hydroelectric
4% Natural Gas
1.3% Biomass
0.7% Wind
0.1% Solar