From enron's perspective: 
Buy 1095 Jan 02 from williams, sell to koch 
Buy 550 Feb02 from williams, sell to koch 
buy 6/day cal 03 from williams, sell to koch 
buy 1/day cal 5 from williams, sell to koch 
buy 1/day cal 6 from williams, sell to koch 
I will be in a meeting from 3-4:30 so if you can't get to it today I will just call you tommorrow to check it out 
Thanks