Valero Energy (VLO) ended the recent trading session at $162.82, demonstrating a -3.03% change from the preceding day's closing price. This change lagged the S&P 500's daily loss of 0.24%. Elsewhere, the Dow lost 0.62%, while the tech-heavy Nasdaq added 0.23%. Heading into today, shares of the oil refiner had lost 5.89% over the past month, lagging the Oils-Energy sector's loss of 1.72% and the S&P 500's gain of 1.31%.Market participants will be closely following the financial results of Valero Energy in it ...