Exhibit 23.3

                   CONSENT OF INDEPENDENT PETROLEUM ENGINEERS

We hereby consent to the use of the name Troy-Ikoda Limited and of references to
Troy-Ikoda Limited and to the inclusion of and references to our report, or
information contained therein, dated 11/th/ March 2003, prepared for ATP Oil &
Gas (UK) Limited in the ATP Oil & Gas Corporation annual report on Form 10-K for
the year ended 31/st/ December 2002, and the incorporation by reference to the
report prepared by Troy-Ikoda Limited into ATP Oil & Gas Corporation's
previously filed Registration Statements on Form S-1 (No. 333-46034) and on Form
S-8 (No. 333-60762).


                                         Troy-Ikoda Limited

31/st/ January 2003