Thursday Sector Laggards: Oil & Gas Exploration & Production, Oil & Gas Refining & Marketing

In trading on Thursday, oil & gas exploration & production shares were relative laggards, down on the day by about 2.7%.  Helping drag down the group were shares of North Atlantic Drilling (NADL), off about 12.3% and shares of Magellan Petroleum (MPET) down about 8.4% on the day.