Southern refineries are not the only ones that can use it. The Mobil and BP refineries around Chicago (and Citgo?) have made expensive modifications to be able to use oil from the shale and tar sands.

National Rifle Association - Patron Member
National Muzzleloading Rifle Association - Life Member and 1 of 1000
Illinois State Rifle Association - Life Member
Carlinville Rifle & Pistol Club
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