EX-21.1 2 dex211.htm SUBSIDIARIES Subsidiaries

 

Exhibit 21.1

ATP Oil & Gas Corporation and Subsidiaries

Subsidiaries

 

Name

    Ownership  

ATP Oil & Gas Corporation

      Parent   

ATP Energy, Inc.

      100 % 

ATP Oil & Gas (UK) Limited

      100 % 

ATP Oil & Gas (Netherlands) B.V.

      100 % 

ATP Holdco, LLC

      100 % 

ATP IP-GP, LLC

      100 % 

ATP IP-LP, LLC

      100 % 

ATP Infrastructure Partners, L.P.

      51 % 

ATP Titan Holdco, LLC

      100 % 

ATP Titan, LLC

      100 %