Exhibit 23.4

Collarini	Collarini Associates
	3100 Wilcrest Drive, Suite 140
	Houston, Texas 77042
	Tel. (832) 251-0160
	Fax (504) 887-7162
	www.collarini.com

CONSENT OF INDEPENDENT PETROLEUM ENGINEERS

We hereby consent to the use of our report, dated February 15, 2010, relating to the proved oil and gas reserves of ATP Oil & Gas Corporation (the “Company”) as of January 1, 2010, to the information derived from such reports and to the reference to this firm as an expert in the Form S-4 registration statement and any amendments thereto filed by the Company and in the prospectus to which the registration statement relates.

Collarini Associates

/s/ Mitch Reese, P.E.

President

October 4, 2010