liburton (HAL), Hornbeck Offshore (HOS), NOW Inc. (DNOW), National Oilwell Varco (NOV), Noble Corp. (NE), Rowan Companies (RDC), Schlumberger (SLB), Superior Energy Services (SPN), Transocean (RIG), Weatherford International (WFT) J.P. Morgan Equity Research Ratings Distribution, as of March 31, Overweight Neutral 201