Type	Name	Date
Registration rights agreement	Registration Rights Agreement	06/20/2012
Securities purchase agreement	Securities Purchase Agreement	06/20/2012
Indenture	Indenture between the Company and the Trustee	04/29/2010
Credit agreement	Credit Agreement among the Company, JPM, CSS, NATIXIS and the lenders thereto	04/29/2010
Credit agreement	First Amendment, to the Credit Agreement, among ATP Oil & Gas Corporation, the lenders party thereto, and Credit Suisse, Cayman Islands Branch, as Administrative Agent and Collateral Agent	11/06/2009
Underwriting agreement	Underwriting Agreement among the Company, J.P. Morgan Securities Inc. and Credit Suisse Securities (USA) LLC, as representatives of the several Underwriters named therein	09/29/2009
Underwriting agreement	Underwriting Agreement among the Company and J.P. Morgan Securities Inc., as representatives of the several Underwriters named therein	06/16/2009