Friday Sector Laggards: Oil & Gas Exploration & Production, Grocery & Drug Stores

In trading on Friday, oil & gas exploration & production shares were relative laggards, down on the day by about 3.2%. Helping drag down the group were shares of Sanchez Energy Corporation (SN), down about 11.1% and shares of Zion Oil & Gas (ZN) down about 8.6% on the day.