Key PointsChevron operates in all three phases of the oil and gas value chain.Chevron has increased its dividend for 39 straight years.The energy sector has been the best-performing sector so far this year.10 stocks we like better than Chevron › So far this year, the energy sector has been the stock market's best-performing sector, and it hasn't been close. While investors greatly appreciate the recent gains, long-term returns ultimately matter …