EX-21.1 2 dex211.htm SUBSIDIARIES OF ATP Subsidiaries of ATP

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, LP

    51 %