the dip in refinery sales might be related to the shutdown of a few refineries which appears to have occurred during fall 2011. here is a google search i used:

the dip in refinery sales might be related to the shutdown of a few refineries which appears to have occurred during fall 2011. here is a google search i used: https://www.google.com/search?q=gas+refinery+shuts+down&hl=en&safe=off&sa=X&ei=PBFMUL7qLeaXiAKhsoDYDg&ved=0CAkQpwUoBg&source=lnt&tbs=cdr%3A1%2Ccd_min%3A9%2F1%2F2011%2Ccd_max%3A11%2F1%2F2011&tbm= https://www.google.com/search?q=gas+refinery+shuts+down&... edit: speeling.