Among the largest underlying components of IEO, in trading today Occidental Petroleum Corporation ( OXY) is down about 1.1%, and Apache Corporation ( APA) is lower by about 0.3%.

FORBES: Has the Well Dried For Oil & Gas ETFs?

Among the largest underlying components of IXC, in trading today Anadarko Petroleum Corporation ( NYSE: APC) is off about 1.6%, Apache Corporation ( NYSE: APA) is off about 1.9%, and Hess Corporation ( NYSE: HES) is lower by about 0.5%.

FORBES: Notable ETF Outflow Detected - IXC, APC, APA, HES

Among the largest underlying components of XLE, in trading today Occidental Petroleum Corporation ( NYSE: OXY) is down about 1%, Halliburton Company ( NYSE: HAL) is off about 0.4%, and Apache Corporation ( NYSE: APA) is lower by about 0.3%.

FORBES: Energy Shares Slide As Investors Look For Safer Growth Options

Among the largest underlying components of XLE, in trading today Exxon Mobil Corporation ( NYSE: XOM) is up about 0.1%, Halliburton Company ( NYSE: HAL) is up about 0.5%, and Apache Corporation ( NYSE: APA) is lower by about 0.5%.

FORBES: Investors Exit Energy Holdings As Economic Slowdown Looms

Among the largest underlying components of IXC, in trading today Apache Corporation ( NYSE: APA) is up about 1.6%, Anadarko Petroleum Corporation ( NYSE: APC) is up about 3.8%, and National Oilwell Varco Incorporated ( NYSE: NOV) is higher by about 1.6%.

FORBES: Investors Cut Holdings In the Energy Sector -- APA, APC, NOV In Focus

Among the largest underlying components of ERX, in trading today Alpha Natural Resources Incorporated ( NYSE: ANR) is down about 3.6%, Anadarko Petroleum Corporation ( NYSE: APC) is down about 0.6%, and Apache Corporation ( NYSE: APA) is lower by about 2.1%.

FORBES: Daily Energy Bull 3x Shares Experiences Big Outflow