How about this for a great, national trend: 60% in 2005; 40% in 2012; and 32% in 2014 for the oil import percentage. EIA projects that oil imports will fall in 2014 to the lowest level since 1985. See page 4 of:
The decline in oil imports improves US balance of trade, raises GDP, but does not free us from globally priced oil. The only thing that will remove the threat to the US economy posed by oil shocks is lowering substantially the portion of US energy supplied by oil, whether it be domestically produced or imported.