Earnings season for the energy sector kicks off this week with Schlumberger (NYSE:SLB) leading the way on Friday morning, before the market opens. Analysts looking into their crystal balls see Schlumberger as well as Halliburton (NYSE:HAL) and Baker Hughes (NYSE:BHI) all having extremely good quarters. One company our Foolish contributors are watching, though, is Core Laboratories (NYSE:CLB)

Tune into the video to find out what Wall Street expects from each of these companies, what Fool.com contributor Tyler Crowe will be watching for in the earnings releases, and why investors should pay attention to Core Labs.