Among the largest underlying components of XES, in trading today Exterran Holdings Inc ( NYSE: EXH) is up about 3%, RPC, Inc. ( NYSE: RES) is up about 1%, and Hornbeck Offshore Services Inc ( NYSE: HOS) is lower by about 0.6%.

FORBES: SPDR S&P Oil & Gas Equipment & Services ETF Experiences Big Inflow

Among the largest underlying components of XES, in trading today Basic Energy Services Inc ( NYSE: BAS) is off about 0.6%, Patterson-UTI Energy Inc. ( NASD: PTEN) is trading flat, and Hercules Offshore Inc ( NASD: HERO) is lower by about 1.7%.

FORBES: Notable ETF Outflow Detected - XES, BAS, PTEN, HERO

Among the largest underlying components of XES, in trading today McDermott International, Inc. ( NYSE: MDR) is down about 0.5%, ION Geophysical Corp ( NYSE: IO) is up about 2.2%, and Diamond Offshore Drilling, Inc. ( NYSE: DO) is up by about 0.2%.

FORBES: XES, MDR, IO, DO: ETF Outflow Alert