|EXHIBIT 21                                 
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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES  
|March 4, 2004                              
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|Ben Holt Company                           
|Bibb and Associates, Inc.                  
|Bighorn Walnut, LLC                        
|CMF Leasing Co.                            
|Construcciones Kiewit, S.A. de C.V.        
|Construction Kiewit Cie                    
|Constructora Kiewit, C.A.                  
|GBV-Texas, L.P.                            
|GIC Industrial, Inc.                       
|GMF 1 L.L.C.                               
|GSC Atlanta, Inc.                          
|GSC Contracting, Inc.                      
|General Construction Company               
|Gilbert/CBE Indonesia L.L.C.               
|Gilbert Central Corp.                      
|Gilbert Frontier, Inc.                     
|Gilbert/Healy, L.P.                        
|Gilbert Industrial Corporation             
|Gilbert Industrial Texas, L.P.             
|Gilbert Marine L.L.C.                      
|Gilbert Network Services, L.P.             
|Gilbert Southern Corp.                     
|Gilbert Texas Corp.                        
|Gilbert Texas Construction, L.P.           
|Gilbert Western Corp.                      
|Global Surety & Insurance Co.              
|Guernsey Construction Company              
|Gulf Marine Fabricators, Inc.              
|KB Leasing Company                         
|KFM Leasing Company                        
|K-G Leasing Company                        
|K-G-W Leasing Company                      
|KP Leasing Company                         
|KT Developers, LLC                         
|KT Mining, LP                              
|KiEnergy, Inc.                             
|Kiewit Alabama Mining Company              
|Kiewit Canada Group Inc.                   
|Kiewit Construction Company                
|Kiewit Construction Group Inc.             
|Kiewit Constructors Inc.                   
|Kiewit Development Company                 
|Kiewit Energy Holdings Inc.                
|Kiewit Engineering Co.                     
|Kiewit Engineering Canada Co.              
|Kiewit Finance Group Inc.                  
|Kiewit Hydropower Investors Inc.           
|Kiewit Industrial Co.                      
|Kiewit Industrial Canada Co.               
|Kiewit International Inc.                  
|Kiewit International Services Inc.         
|Kiewit Investment Holdings Inc.            
|Kiewit Management Co.                      
|Kiewit Mazon Constructores, S.A. de C.V.   
|Kiewit McNair Creek Investors Corp.        
|Kiewit Mining Acquisition Company          
|Kiewit Mining Group Inc.                   
|Kiewit Mining Properties Inc.              
|Kiewit Mining Services Inc.                
|Kiewit Network Services Co.                
|Kiewit Offshore Services, Ltd.             
|Kiewit Pacific Co.                         
|Kiewit Venezuela Inc.                      
|Kiewit Western Co.                         
|Lac De Gras Excavation Inc.                
|Les Enterprises Kiewit Ltee                
|MECC Rail Mexicana, S.A. de C.V.           
|Mass. Electric Construction Co.            
|Mass. Electric Construction Venezuela, S.A.
|Mass. Electric International, Inc.         
|Midwest Agencies, Inc.                     
|PT Kiewit International                    
|Peter Kiewit Sons Co.                      
|Seaworks, Inc.                             
|Servitec de Sonora, S.A. de C.V.           
|Twin Mountain Construction II Company      
|V. K. Mason Construction Co.               
|Walnut Creek Mining Company