Priscilla,

I do not find the term "Alternate Transporter Imbalance"  in our agreement..  
The term "Aggregate Transporter Imbalance" is located in several sections.  
Could this be what your referencing?

Regards,
Debra Perlingiere
Enron North America Corp.
Legal Department
1400 Smith Street, EB 3885
Houston, Texas 77002
dperlin@enron.com
Phone 713-853-7658
Fax  713-646-3490