Greek shipping company DryShips Inc., which specializes in dry bulk carriers, has sold a pair of older ships and added two newer vessels to its fleet. The company sold its 24-year-old Panamax bulk carrier MV Striggla for $12.1 million and its 17-year-old Panamax bulk carrier MV Daytona for $25.3 million. DryShips expects to book a combined gain of about $15 million from the divestitures. Meanwhile, the company bought a 10-year-old Capesize bulk carrier, MV Cape Venture, for $62 million. The vessel is scheduled for a charter-free delivery in the first quarter of 2007. DryShips also purchased MV Sea Epoch, an 8-year-old Panamax bulk carrier, for $38 million. It is scheduled for a charter-free delivery in the second quarter of next year.