Twenty largest holders of fully paid Ordinary Shares  Rank  Name__ ____________  Units  % Issued Capital 1  J P MORGAN NOMINEES AUSTRALIA LIMITED  95,979,708  17.47  2  NATIONAL NOMINEES LIMITED  79,135,550  14.41  3  HSBC CUSTODY NOMINEES (AUSTRALIA) LIMITED  77,105,579  14.04  4  CITICORP NOMINEES PTY LIMITED  43,178,917  7.86  5  GAFFWICK PTY LTD  19,500,000  3.55  6  PROVIDENT MINERALS PTE LTD  18,292,076  3.33  7  BNP PARIBAS NOMS PTY LTD  13,478,209  2.45  8  ZERO NOMINEES PTY LTD  13,204,678  2.40  9  WILLIAM TAYLOR NOMINEES PTY LTD  8,919,194  1.62  10  CITICORP NOMINEES PTY LIMITED  8,405,435  1.53  11  MR JAMES DAVID TAYLOR + MRS MARION AMY TAYLOR 4,830,077  0.88  12  HSBC CUSTODY NOMINEES (AUSTRALIA) LIMITED 4,741,930  0.86  13  GAFFWICK PTY LTD  3,500,000  0.64  14  MR MARCUS JAMES TAYLOR  3,116,367  0.57  15  CS FOURTH NOMINEES PTY LTD  2,818,710  0.51  16  NAVIGATOR AUSTRALIA LTD 2,792,184  17  MERRILL LYNCH (AUSTRALIA) NOMINEES PTY LIMITED  2,747,094  0.50  18  RBC INVESTOR SERVICES AUSTRALIA NOMINEES PTY LIMITED 2,695,500  0.49  19  BRESRIM NOMINEES PTY LTD  2,541,128  0.46  20  ABN AMRO CLEARING SYDNEY NOMINEES PTY LTD  2,498,771  0.45  Total  409,481,107  74.54  Stock Exchange on which the Company’s Securities are quoted  Petroleum Exploration Licenses Exploration & Development Assets  The Company’s listed equity securities are quoted on the Australian Securities Exchange, under Ticker “SEA”. As the Company is a petroleum exploration Company, below is a list of its interests in petroleum exploration licences  granted, where the licences are situated and the percentage interest held.  ACREAGE  Prospect  Ownership %  U.S. Leases __ __  Gross  Net  Eagle Ford  31,079  33,283  65-95  Greater Anadarko  66,177  35,034  50-100  US Grand Total  97,256  68,317  On Market Buy-back There is currently no on-market buy-back.  - 110 - 