Senators Ron Wyden (D-Oregon) and Lisa Murkowski (R-Alaska) last Friday sent a letter to the U.S. Environmental Protection Agency's (EPA) acting Administrator Robert Perciasepe inquiring about Renewable Identification Number (RIN) prices and gasoline. "The reasons for this increase are unclear, as are the effects," the senators wrote. "Some industry analysts have blamed the increase in on a glut of ethanol, while others have blamed it on a shortage. What is abundantly clear is that this level of market volatility is unprecedented."The Senate Committee on Energy and Natural Resources, as represented by Wyden and Murkowski, is seeking from EPA the trading data from 19 February – 14 March, specifically the names and volume holdings of the 10...