Last week the U.S. NGL markets entered uncharted territory. According to OPIS, cash propane prices in the Conway, KS market reached almost $5.00/gallon for a time, responding to a massive product shortage across the entire eastern half of the country. But at the same NGL hub, OPIS also reported that the price for ethane/propane mix (EP mix) dropped deep into negative territory at $(0.50)/gallon. That’s crazy. The seller is paying the buyer to take the product. Nothing like this has been seen before in these markets. Propane inventories continue to drop, transport trucks are moving product hundreds of miles to markets, terminals remain on allocation and a state of emergency has been declared by at least 20 state governors. The inventory graphs look so scary that the Black Swan is frozen stiff. Today we begin a series on the NGL markets of 2014, a year that this industry will be talking about for a long time.