MRT Bids on Capacity

                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                 
 TSP NAME:                                                        Page     1                                                                                                                                                                              
 Enable Mississippi River Transmission, LLC                                                                                                                                                                                                               
 Transportation Service Provider(TSP): 00 696 8077                                                                                                                                                                                                        
 K Holder: 6936017                                                                                                                                                                                                                                        
 K Holder Name: AMEREN ILLINOIS COMPANY DBA                                                                                                                                                                                                               
 Contract Begin Date (K Beg Date): 5/1/2004                                                                                                                                                                                                               
 Contract End Date (K End Date): 5/15/2026                                                                                                                                                                                                                
 Status: 00                                                                                                                                                                                                                                               
 Bid Number(Bid No) 1       Offer Number(Offer No) 5302                                                                                                                                                                                                   
 Bidder Name(Bidder Name) TENASKA MARKETING VENTURES                                                                                                                                                                                                      
                                                                                                                                                                                                                                                          
 Bidder Proprietary Code(Bidder Prop): 679355                                                                                                                                                                                                             
 Bidder Contact Name(Bidder Contact): JAKE NIELSEN                                                                                                                                                                                                        
 Posting Date: 3/11/2025                        Bid Receipt Date: 3/11/2025                                                                                                                                                                               
 Posting Time: 15:49      Central Time Zone     Bid Receipt Time: 12:45                                                                                                                                                                                   
 Seasonal Start Date: N/A                       Seasonal End Date: N/A                                                                                                                                                                                    
 Releaser:    693 6017                                                                                                                                                                                                                                    
 Releaser Name: AMEREN ILLINOIS COMPANY DBA                                                                                                                                                                                                               
 Releaser Contact Name: RYAN MCKINNEY                                                                                                                                                                                                                     
 Releaser Contact Fax Number: 314 554 3800                                                                                                                                                                                                                
 Releaser Contact Phone Number(Rel Phone): 618 301 5236                                                                                                                                                                                                   
 Releaser Contact E-Mail Address: rmckinney@ameren.com                                                                                                                                                                                                    
                                                                                                                                                                                                                                                          
                           Bidder Rel   Bidder Rel       Bid                                                                                                                                                                                              
     Parcel     Loc Purp     Term St     Term End       Qty-K                                                                                                                                                                                             
     -------  ----------   ----------   ----------   -----------                                                                                                                                                                                          
        5302  Rcpt-Dlvry   4/1/2025     10/31/2025         10000                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
 Prearranged Bid Indicator Description:                                                                                                                                                                                                                   
   Bidder is the prearranged deal bidder                                                                                                                                                                                                                  
 Affiliate Indicator (Affil): None                                                                                                                                                                                                                        
 Stand-alone Bid Indicator Description: Stand-alone Bid                                                                                                                                                                                                   
 Not a Stand-alone Bid Terms and Conditions:                                                                                                                                                                                                              
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
 Bidder's Contingency Indicator (Bidder Contng): N                                                                                                                                                                                                        
 Bidder's Contingency Terms (Bidder Contng Terms):                                                                                                                                                                                                        
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
 Measurement Basis Description: Million BTU's                                                                                                                                                                                                             
 Rate Form/Type Code Description (Rate Form/Type Desc):                                                                                                                                                                                                   
  Reservation charge only                                                                                                                                                                                                                                 
 Reservation Rate Basis Description (Res Rate Basis Desc): Per day                                                                                                                                                                                        
 Rate Identification Code: RES                                                                                                                                                                                                                            
 Market-Based Rate Indicator (Mkt Based Rate Ind): N                                                                                                                                                                                                      
 Surcharge Indicator: 5                                                                                                                                                                                                                                   
 Surcharge Indicator Description:                                                                                                                                                                                                                         
   Rate(s) stated include only rates; no surcharges applicable                                                                                                                                                                                            
                                                                                                                                                                                                                                                          
 Surcharge Identification Code:                                                                                                                                                                                                                           
 Total Surcharges:                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                          
 Overrun Responsibility Indicator (OVR Resp Ind): RPS                                                                                                                                                                                                     
                                                                                                                                                                                                                                                          
 Rate Bid: 0.06000                                                                                                                                                                                                                                        
 Percentage of Maximum Tariff Rate Bid:                                                                                                                                                                                                                   
 Minimum Volumetric Commitment Quantity:                                                                                                                                                                                                                  
 Bid Minimum Quantity - Contract:                                                                                                                                                                                                                         
 Bidder Lesser Quantity Indicator: N                                                                                                                                                                                                                      
 Storage Inventory-Conditioned Release Indicator:    No                                                                                                                                                                                                   
 IBR Index-Based Capacity Release Indicator (IBR Ind): N                                                                                                                                                                                                  
 Stand Alone Offer: Stand-alone Bid                                                                                                                                                                                                                       
 Special Terms and Miscellaneous Notes:                                                                                                                                                                                                                   
 The Replacement Shipper's nominated and allocated volumes must not result                                                                                                                                                                                
 increase in the rates otherwise paid by Ameren Illinois pursuant to any                                                                                                                                                                                  
 or negotiated rate agreement applicable to the capacity being released.                                                                                                                                                                                  
  The replacement shipper will be responsible for all penalties or UP-charge                                                                                                                                                                              
 the use of capacity which WILL be billed by Ameren Illinois. PRIMARY                                                                                                                                                                                     
 DELIVERY POINTS CANNOT BE CHANGED WITHOUT PRIOR APPROVAL                                                                                                                                                                                                 
  BY AMEREN ILLINOIS                                                                                                                                                                                                                                      
 TSP Name: Enable Gas Transmission, LLC                           Page     2                                                                                                                                                                              
 Transportation Service Provider(TSP): 87 267 0161                                                                                                                                                                                                        
 K Holder: 6936017                                                                                                                                                                                                                                        
 K Holder Name: AMEREN ILLINOIS COMPANY DBA                                                                                                                                                                                                               
 Contract Begin Date (K Beg Date): 5/1/2004                                                                                                                                                                                                               
 Contract End Date (K End Date): 5/15/2026                                                                                                                                                                                                                
 Status: Original                                                                                                                                                                                                                                         
 Bid Number(Bid No)1            Offer Number(Offer No) 5302                                                                                                                                                                                               
 Bidder Name(Bidder Name): TENASKA MARKETING VENTURES                                                                                                                                                                                                     
                                                                                                                                                                                                                                                          
 Bidder Proprietary Code(Bidder Prop): 679355                                                                                                                                                                                                             
 Bidder Contact Name(Bidder Contact): JAKE NIELSEN                                                                                                                                                                                                        
                                                                                                                                                                                                                                                          
  Bid Location Level Rates/Quantity Information                                                                                                                                                                                                           
                                                                                                                                                                                                                                                          
  Location/Quantity Type Indicator Description:                                                                                                                                                                                                           
                   Receipt point(s) to delivery point(s) quantity                                                                                                                                                                                         
  Location Purpose: MQ                                                                                                                                                                                                                                    
  Location Purpose Description: Delivery Location                                                                                                                                                                                                         
                                                                                                                                                                                                                                                          
   Offer Number   Bid         Meas          Bidder     Bid Min    Segment                                                                                                                                                                                 
    (Offer No)  Qty-Loc    Basis Desc      Less Qty    Qty-Loc   Indicator                                                                                                                                                                                
     -------  -----------  ----------    -----------  ---------  ---------                                                                                                                                                                                
        5302        10000 Million BTU's      N            10000     Yes                                                                                                                                                                                   
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                    Loc: 12993                                                                                                                                                                                                                            
               Loc Name: PERRYVILLE DISP - EGT                                                                                                                                                                                                            
    Location OBA Indicator(Loc OBA): No                                                                                                                                                                                                                   
                 Loc Zn:                                                                                                                                                                                                                                  
                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                          
                    Loc: 805535                                                                                                                                                                                                                           
               Loc Name: AMEREN IL AGGREGATE                                                                                                                                                                                                              
    Location OBA Indicator(Loc OBA): No                                                                                                                                                                                                                   
                 Loc Zn: MARKT                                                                                                                                                                                                                            
                                                                                                                                                                                                                                                          
   Minimum Volumetric Commitment Percentage: