Exhibit 21

MISSION ENERGY HOLDING COMPANY  LIST OF SUBSIDIARIES  As of December 31, 2005

|Entity                                        |  | Jurisdiction Of
Organization
|--------------------------------------------- |  | ----------------------------
|Aguila Energy Company                         |  | California                  
|Anacapa Energy Company                        |  | California                  
|Arrowhead Energy Company                      |  | California                  
|Athens Funding, L.L.C.                        |  | Delaware                    
|Beheer-en Beleggingsmaatschappij Plogema B.V. |  | The Netherlands             
|Brookhaven Cogeneration, L.P.                 |  | Delaware                    
|Camino Energy Company                         |  | California                  
|Caresale Services Limited                     |  | United Kingdom              
|Chester Energy Company                        |  | California                  
|Chestnut Ridge Energy Company                 |  | California                  
|Citizens Power Holdings One, LLC              |  | Delaware                    
|CL Power Sales One, L.L.C.                    |  | Delaware                    
|CL Power Sales Two, L.L.C.                    |  | Delaware                    
|CL Power Sales Seven, L.L.C.                  |  | Delaware                    
|CL Power Sales Eight, L.L.C.                  |  | Delaware                    
|CL Power Sales Ten L.L.C.                     |  | Delaware                    
|Collins Holdings EME, LLC                     |  | Delaware                    
|CP Power Sales Nineteen, L.L.C.               |  | Delaware                    
|CP Power Sales Seventeen, L.L.C.              |  | Delaware                    
|CP Power Sales Twelve, L.L.C.                 |  | Delaware                    
|CP Power Sales Twenty, L.L.C.                 |  | Delaware                    
|Del Mar Energy Company                        |  | California                  
|Desert Sunrise Energy Company                 |  | Nevada                      
|Doga Enerji Uretim Sanayi ve Ticaret L.S.     |  | Turkey                      
|Doga Isletme ve Bakim Ticaret L.S.            |  | Turkey                      
|Doga Isi Satis Hizmetleri ve Ticaret L.S.     |  | Turkey                      
|Edison First Power Holdings I                 |  | United Kingdom              
|Edison First Power Holdings II                |  | United Kingdom              
|                                              |  |                             

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|Edison First Power Limited                   |  | Guernsey        
|-------------------------------------------- |  | ----------------
|Edison Mission Development, Inc.             |  | Delaware        
|Edison Mission Energy                        |  | Delaware        
|Edison Mission Energy Fuel                   |  | California      
|Edison Mission Energy Fuel Services, LLC     |  | Delaware        
|Edison Mission Energy Interface Ltd.         |  | British Columbia
|Edison Mission Energy Petroleum              |  | California      
|Edison Mission Energy Services, Inc.         |  | California      
|Edison Mission Finance Co.                   |  | California      
|Edison Mission Fuel Resources, Inc.          |  | Delaware        
|Edison Mission Fuel Transportation, Inc.     |  | Delaware        
|Edison Mission Holdings Co.                  |  | California      
|Edison Mission Marketing & Trading, Inc.     |  | California      
|Edison Mission Midwest Holdings Co.          |  | Delaware        
|Edison Mission Midwest, Inc.                 |  | Delaware        
|Edison Mission Operation & Maintenance, Inc. |  | California      
|Edison Mission Overseas Limited.             |  | United Kingdom  
|Edison Mission Project Co.                   |  | Delaware        
|Edison Mission Wind, Inc.                    |  | Delaware        
|EME Ascot Limited                            |  | United Kingdom  
|EME Atlantic Holdings Limited                |  | United Kingdom  
|EME Buckingham Limited                       |  | United Kingdom  
|EME CP Holdings Co.                          |  | Delaware        
|EME Eastern Holdings Co.                     |  | Delaware        
|EME Finance UK Limited                       |  | United Kingdom  
|EME Homer City Generation L.P.               |  | Pennsylvania    
|EME Investments, LLC                         |  | Delaware        
|EME Investments II, LLC                      |  | Delaware        
|EME Southwest Power Corporation              |  | Delaware        
|EME UK International LLC                     |  | Delaware        
|EMP, Inc.                                    |  | Oregon          
|Energy Generation Finance UK PLC             |  | United Kingdom  
|                                             |  |                 

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|First Hydro Renewables Limited              |  | United Kingdom 
|------------------------------------------- |  | ---------------
|First Hydro Renewables Number 2 Limited     |  | Wales          
|Global Power Investors, Inc.                |  | California     
|Hancock Generation LLC                      |  | Delaware       
|Homer City Property Holdings, Inc.          |  | California     
|Laguna Energy Company                       |  | California     
|Lakeland Power Development Company Limited  |  | United Kingdom 
|Lakeland Power Ltd.                         |  | United Kingdom 
|Lehigh River Energy Company                 |  | California     
|Madison Energy Company                      |  | California     
|Maine Mountain Power, LLC                   |  | Delaware       
|Maplekey Holdings Limited                   |  | United Kingdom 
|Maplekey UK Finance Limited                 |  | United Kingdom 
|Maplekey UK Limited                         |  | United Kingdom 
|MEC Esenyurt B.V.                           |  | The Netherlands
|MEC San Pascual B.V.                        |  | The Netherlands
|Midwest Finance Corp.                       |  | Delaware       
|Midwest Generation EME, LLC                 |  | Delaware       
|Midwest Generation, LLC                     |  | Delaware       
|Midwest Generation Energy Services, LLC     |  | Delaware       
|Midwest Peaker Holdings, Inc.               |  | Delaware       
|Mission Capital, L.P.                       |  | Delaware       
|Mission De Las Estrellas LLC                |  | Delaware       
|Mission Del Cielo Inc.                      |  | Delaware       
|Mission Del Sol, LLC                        |  | Delaware       
|Mission/Eagle Energy Company                |  | California     
|Mission Energy Construction Services, Inc.  |  | California     
|Mission Energy Generation, Inc.             |  | California     
|Mission Energy Holdings, Inc.               |  | California     
|Mission Energy Holdings International, Inc. |  | Delaware       
|Mission Energy Singapore Pte Ltd            |  | Singapore      
|Mission Energy Wales Company                |  | California     
|Mission Energy Westside, Inc.               |  | California     
|                                            |  |                

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|Mission Triple Cycle Systems Company |  | California    
|------------------------------------ |  | --------------
|Mission Wind Maine, Inc.             |  | Delaware      
|Mission Wind New Mexico, Inc.        |  | Delaware      
|Mission Wind Pennsylvania, Inc.      |  | Delaware      
|Mission Wind Texas, Inc.             |  | Delaware      
|Mission Wind Wildorado, Inc.         |  | Delaware      
|North Shore Energy, L.P.             |  | Delaware      
|Northville Energy Corporation        |  | New York      
|Ortega Energy Company                |  | California    
|Panther Timber Company               |  | California    
|Paradise Energy Company              |  | California    
|Pego Limited                         |  | United Kingdom
|Pleasant Valley Energy Company       |  | California    
|Pride Hold Limited                   |  | United Kingdom
|Rapidan Energy Company               |  | California    
|Redbill Contracts Limited            |  | United Kingdom
|Reeves Bay Energy Company            |  | California    
|Riverport Energy Company             |  | California    
|San Gabriel Energy Company           |  | California    
|San Joaquin Energy Company           |  | California    
|San Juan Energy Company              |  | California    
|San Juan Mesa Wind Project, LLC      |  | Delaware      
|San Juan Mesa Investments, LLC       |  | Delaware      
|San Pedro Energy Company             |  | California    
|Santa Clara Energy Company           |  | California    
|Silverado Energy Company             |  | California    
|Southern Sierra Energy Company       |  | California    
|Thorofare Energy Company             |  | California    
|Valle Del Sol Energy, LLC            |  | Delaware      
|Viejo Energy Company                 |  | California    
|Vista Energy Company                 |  | New Jersey    
|Walnut Creek Energy, LLC             |  | Delaware      
|Western Sierra Energy Company        |  | California    

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