Goldman Sachs has upgraded Valero Energy Corp's rating from 'Sell' to 'Neutral', citing a stronger long-term margin outlook and a balanced valuation profile, with a new target price of $127, suggesting a 15% potential return. Key factors for this upgrade include revised consensus estimates reflecting a slowdown in refinery profitability, an improved crude oil environment due to OPEC's heavy oil supplies, and a favorable supply landscape following significant refinery closures. Despite demand uncertainties, Valero's strong balance sheet and cash flow generation are expected to enhance shareholder returns, with a projected return on capital around 9%. Valero's shares have outperformed the S&P 500 by approximately 119% over the past five years, driven by rising oil demand and consistent dividends.