Valero Energy Corporation (NYSE: VLO) stands out as a premier oil refining company. Year to date, the company has gained 23.7%, outpacing the 7.3% improvement of the composite stocks belonging to the industry. What's Favoring the Stock? Valero, currently carrying a Zacks Rank #3 (Hold), is a best-in-class oil refiner involved in the production of fuels and products that can meet the demands of modern life. Its refineries are located across the United States, Canada and the U.K. A total of 15 petroleum refineries, wherein Valero has ownership interests, have a combined throughput capacity of 3.2 million barrels per day. The Renewable Diesel business segment of the firm comprises Diamond Green Diesel ("DGD") — a joint venture between Darling Ingredients Inc. and Valero. DGD is a leading renewable fuel producer in North America. Low-carbon fuel policies ...