The 17,900-gt Ocean Rig Corcovado and Ocean Rig Mykonos (both built 2011) will stay on with Petrobras for another 1,095 days each.

This is in direct continuation of current deals expiring in the first and second quarters of 2015, the company said..

ORIG now has a contract backlog of $5.5bn.

Chairman and CEO George Economou said he did not believe ORIG’s current share price reflected the true value of the company, due to the volatility of oil prices and uncertainty about parent DryShips’ ability to repay convertible notes.

DryShips