“In 2002, only 2.5% of the electricity produced in the U.S. was produced by using oil.” (Only 1.34% in Pennsylvania) Wind Energy Will Not Reduce US Oil Dependence, December 1, 2004 by Glenn R. Schleede http://www.tsaugust.org/images/Wind_Energy_Will_Not_Reduce_US_Oil_Dependence_ by_Schleede_041201.pdf  

“Given that wind only produces electricity, given that we use so little oil for electricity production, and even if large numbers of wind turbines displaced the one percent of our electricity now powered by oil, the region would still be heavily dependent on coal and gas, power sources often described as "dirty"—and we would still be mightily dependent on foreign oil, contrary to what the wind industry claims.”
http://www.stopillwind.org/lowerlevel.php?content=topten_3