CONFIDENTIAL ATTORNEY CLIENT PRIVILEGED INFORMATION

Listed below are some possible structures for 20/20 under the terms currently 
in the LOU

1.  Assign the Lost Creek and Fort Union Firm Gathering Agreements to Enron 
Midstream Services LLC, or other NBP entity as designated, from ENA at the 
close.  
 -Replace the Enron Corp. Guarantees related to the project finance for Fort 
Union and to the Lost Creek LLC and project finance at closing.  
                 -ENA enter into a tiered gathering agreement with Enron 
Midstream Services, LLC with 16 months of firm demand charges, a variable fee 
for all gas actually transported by ENA on Enron Midstream Services and Fort 
Union and a first right to use any other capacity on Enron Midstream Services 
and Fort Union. 

2.  Assign the Lost Creek and Fort Union Firm Gathering Agreements to Enron 
Mistream Services LLC effective 16 months from the closing date.
                -leave Enron Corp. guarantees in place for that 16 month 
period? [ Can we get lender consent now for an assignment to occur in 16 
months?] 
                -ENA enter into a gathering agreement with Enron Midstream 
Services, LLC  with a variable fee for all gas actually transported by ENA on 
Enron Midstream Services only for the first 16 months and on Enron Midstream 
Services and Fort Union therafter and a first right to use other capacity on 
Enron Midstream Services and Fort Union. [This is to support the existing ENA 
purchase agreements]

3.  Don't assign the Lost Creek and Fort Union Firm Gathering Agreements, but 
have a covenant requiring the assignment effective 16 months from the closing 
date. 
                  -everything else the same as 2 above