enron actuals august 4 thru 6 2000 aug 4 teco tap 120 000 hpl iferc 20 000 enron ls hpl katy 20 000 enron aug 5 teco tap 96 667 hpl iferc 20 000 enron ls hpl katy 20 000 enron aug 6 teco tap 120 000 hpl iferc 20 000 enron ls hpl katy 20 000 enron