Article Photos: Energy independence: Politics, prices have kept U.S. from energy independence

A Hertz CNG-fueled rental Honda Civic to be available at Will Rogers World Airport is shown in this photo from earlier this year. Photo by Bryan Terry, The Oklahoman Archives

A Hertz CNG-fueled rental Honda Civic to be available at Will Rogers World Airport is shown in this photo from earlier this year. Photo by Bryan Terry, The Oklahoman Archives