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 11th March 2002, prepared for ATP Oil & Gas
(UK) Limited in the ATP Oil & Gas Corporation annual report on Form 10-K for the
year ended 31st December 2001, 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


1st April 2002