announced in March. The roughly $630 million contract, signed April 8, involves the use of the Leiv Eiriksson for exploratory drilling in the Black Sea. DryShips shares rose 10.3% to $5.59. Elsewhere: Eagle Bulk Shipping ( EGLE) shares rose 19.3% to $5.80. Excel Maritime Carriers ( EXM) rose 4.8% to $7.25. Diana Shipping ( DSX) fell 0.6% to $13.97. Genco Shipping ( GNK) rose 2.3% to $15.68. Navios Maritime ( NM) shares rose 12.4% to $2.91.