Conclusion: Both Companies Can Keep Thriving With inflation out of hand, consumers are largely expected to reserve most of their money for essentials rather than discretionary spending. Amid burgeoning demand, tight supply, and inflating prices, Suncor Energy (NYSE: SU) (TSE: SU) and Valero Energy (NYSE: VLO) are two diesel stocks that stand to ride the wave. Diesel prices have been rising more steadily than gasoline as supplies dwindle.