UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	February 4, 2011 4:00 P.M.

Form:	S-4
CIK: 0001465872 Company Name: OFFSHORE GROUP INVESTMENT Ltd File Number: 333-170841
CIK: 0001465876 Company Name: EMERALD DRILLER Co File Number: 333-170841-11
CIK: 0001465873 Company Name: SAPPHIRE DRILLER Co File Number: 333-170841-10
CIK: 0001465864 Company Name: VANTAGE HOLDING HUNGARY KFT File Number: 333-170841-09
CIK: 0001465863 Company Name: VANTAGE DRILLING NETHERLANDS B.V. File Number: 333-170841-08
CIK: 0001419428 Company Name: Vantage Drilling CO File Number: 333-170841-07
CIK: 0001465871 Company Name: VANTAGE DRILLER I CO. File Number: 333-170841-06
CIK: 0001465865 Company Name: VANTAGE DRILLER II CO. File Number: 333-170841-05
CIK: 0001465867 Company Name: VANTAGE DRILLER IV CO. File Number: 333-170841-04
CIK: 0001465862 Company Name: VANTAGE INTERNATIONAL MANAGEMENT CO. File Number: 333-170841-03
CIK: 0001504851 Company Name: MANDARIN DRILLING Corp File Number: 333-170841-02
CIK: 0001504852 Company Name: P2021 RIG CO. File Number: 333-170841-01