William E. Greehey is a former CEO of Valero Energy Corporation, a major player in the oil refining industry. He became CEO on December 31, 2005, after a strong background with the company, having served as Chairman of the Board...

William E. Greehey is a former CEO of Valero Energy Corporation, a major player in the oil refining industry. He became CEO on December 31, 2005, after a strong background with the company, having served as Chairman of the Board and held various roles since its acquisition of Ultramar Diamond Shamrock in 2001. Greehey had a significant impact on the company's strategic decisions which led to important growth phases. During his last year as CEO, he earned a total compensation of $10 million, which included a $1.4 million salary and a $3.5 million bonus based on company performance. This performance-based pay model aligns executive compensation with company results, emphasizing value generation for shareholders. His experience in the refining sector and his leadership helped steer Valero to be one of the largest independent refiners in the U.S., operating 15 refineries and numerous ethanol plants. Even after stepping down as CEO, he remained influential as Chairman of the Board until January 2007, showcasing his deep commitment to the company’s success.