As you may or may not know I have changed positions and am now employed by Al Warren Oil Company out of Chicago, Illinois....one thing I can tell you about this market - it is like eating a SOUP SANDWICH. There is no rhyme or reason behind why any specific economics apply, although I have noticed the Platts opportunities are much more prevalent in this market than most. Also - it seems as though there are opportunities for supplier to take advantage of "floating margins" on Platts contracts so during specific months is still makes sense to hold the contract.