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FORM OF REGISTRATION RIGHTS AGREEMENT
THIS REGISTRATION RIGHTS AGREEMENT (this " Agreement ") is entered into as of the day of
, 2008, by and among Vantage Drilling Company, a Cayman Islands exempted company (the " Company ")
and F3 Capital (" F3 Capital ").
WHEREAS, the Company, Offshore Group Investment Limited, Vantage Energy Services, Inc. and F3 Capital have
previously entered into a certain Share Purchase Agreement, dated as of August 30, 2007, as amended (the " Purchase
Agreement "), pursuant to which the Company will receive, in exchange for cash and units, all of the shares of common stock of
Offshore Group Investments Limited, an entity incorporated under the laws of the Cayman Islands and a wholly owned
subsidiary of F3 Capital; and
WHEREAS, the Company and F3 Capital desire to enter into this Agreement to provide F3 Capital with certain rights
related to the registration of (i) shares of Common Stock; (ii) Warrants; and (iii) shares of Common Stock underlying Warrants
that F3 Capital will acquire as a result of the Purchase Agreement and the transactions contemplated thereby.
NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and for other good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:
1. DEFINITIONS. The following capitalized terms used herein have the following meanings:
" Agreement " means this Agreement, as amended, restated, supplemented, or otherwise modified from time to time.
" Commission " means the Securities and Exchange Commission, or any other federal agency then administering the
Securities Act or the Exchange Act.
" Common Stock " means the common stock, par value $0.001 per share, of the Company.
" Company " is defined in t