(EnergyAsia, May 4 2010, Tuesday) — Drydocks World Southeast Asia (DDW-SEA) said it has reopened two of three of its shipyards, Pertama and Nanindiah, on Batam Island in Indonesia following the recent riots at the third yard, Graha. DDW-SEA reported that more than 70% of shipyard staff have returned to work, with operations at Graha…