In the latest trading session, Valero Energy (VLO) closed at $139.63, marking a -1.23% move from the previous day. The stock trailed the S&P 500, which registered a daily loss of 0.16%. Meanwhile, the Dow experienced a rise of 0.09%, and the technology-dominated Nasdaq saw a decrease of 0.3%.Shares of the oil refiner have depreciated by 5.03% over the course of the past month, underperforming the Oils-Energy sector's gain of 0.93% and the S&P 500's gain of 3.64%.Analysts and investors alike will be keeping ...