Today, analyst Joel South previews Dow Jones component Chevron and explains the company's earnings expectations as well as what investors should pay attention to. So far, the second quarter has proved to be troublesome for E&Ps and integrated firms, while the services sector has run away with the profits. Chevron might be able to nudge expectations because of its minimal exposure to cheap natural gas production. Check out the video below for a preview of Chevron's second quarter.

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.