<P> Most large refineries are near navigable waterways , especially seaports or Great Lakes ports . The single largest concentration of refineries is along the Gulf Coast . Although there are refineries in 30 states , just three states dominate US refining : Texas ( 47 operating refineries ) , Louisiana ( 19 ) , and California ( 18 ) . As of January 2015 , these three states contain 45 % of all US refineries and 59 % of all US refining capacity . </P>
<P> Most large refineries are near navigable waterways , especially seaports or Great Lakes ports . The single largest concentration of refineries is along the Gulf Coast . Although there are refineries in 30 states , just three states dominate US refining : Texas ( 47 operating refineries ) , Louisiana ( 19 ) , and California ( 18 ) . As of January 2015 , these three states contain 45 % of all US refineries and 59 % of all US refining capacity . </P>
where are most of the us oil refineries located
where are most of the us oil refineries located
along the Gulf Coast
along the Gulf Coast