Person
    
      
        
          ?
        
      
    
    J. E. F. de Kok
  
  
			
    
  
    - 
        From 1927-01-01 to 1927-12-31,
        Administrateur of THE MEXICAN EAGLE OIL COMPANY LIMITED (Compania Mexicana de Petroleo "El Aguila" S. A.)
      
 - 
        From 1933-01-01 to 1933-12-31,
        Administrateur of ASTRA ROMANA
      
 - 
        From 1933-01-01 to 1933-12-31,
        Administrateur of CANADIAN EAGLE OIL COMPANY LTD
      
 - 
        From 1933-01-01 to 1933-12-31,
        Administrateur of THE MEXICAN EAGLE OIL COMPANY LIMITED (Compania Mexicana de Petroleo "El Aguila" S. A.)
      
 - 
        From 1940-01-01 to 1940-12-31,
        Administrateur of THE "SHELL" TRANSPORT AND TRADING COMPANY, LTD.
      
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        From 1940-01-01 to 1940-12-31,
        Vice-Président of CANADIAN EAGLE OIL COMPANY LTD
      
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        From 1940-01-01 to 1940-12-31,
        Membre de Comité de Direction of ROYAL DUTCH Société Royale Néerlandaise pour l'Exploitation des Gisements de Pétrole
      
 - 
        From 1940-01-01 to 1945-12-31,
        Administrateur of ASTRA ROMANA
      
 - 
        From 1940-01-01 to 1953-12-31,
        Administrateur of THE MEXICAN EAGLE OIL COMPANY LIMITED (Compania Mexicana de Petroleo "El Aguila" S. A.)
      
 - 
        From 1945-01-01 to 1945-12-31,
        Directeur Général of ROYAL DUTCH Société Royale Néerlandaise pour l'Exploitation des Gisements de Pétrole