Market infatuation with lofty sour crude refinery margins may have sparked an IPO:Alon USA filed May 11 to sell up to us125-mil of stock and "go public."In a securities filing,the private Israeli company played up its ability to run sour barrels at its sole US refinery,at Big Spring,Texas."The ability to process substantial volumes of sour crude oil" was listed as a "competitive strength" in the filing.Big Spring typically runs more than 90% high-sulfur crude,mostly West Texas Sour.
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