The energy industry is a global colossus in the overall economy, and oil giant and Dow component Chevron (NYSE: CVX) plays a key role in delivering oil and natural gas to the world. The integrated oil company combines exploration and production, pipeline and transmission, and refinery and marketing assets under a single corporate umbrella, and investors have seen good share price performance as well as healthy dividends that put Chevron’s yield among the highest in the Dow.