When we described the quirky workings of the US renewable fuels mandates back in July and August of 2012 the topic was merely brain food for commodity market theorists and sleep deprived gasoline analysts. This month the market for big brother sounding “Renewable Identification Numbers” (RINS) - credited to refiners when they add ethanol to gasoline blends - is suddenly the hottest thing since sliced bread. The price of 2013 RINS shot from a few cnts/gal in January 2013 to an astronomical $1/gal on March 8, 2013. Earlier this week they were trading in the stratosphere, at about $0.70/gal. Today we look at what lies behind the current RIN furor.