Valero falls with peers after U.S. widens oil export potential, levels to watch The stock gapped down along with its peers after news the U.S.plans to widen exports of oil. The concern is that having to compete with foreign buyers for crude may increase the cost basis for refiners and lower profits. At the current price of $50.86, shares are not trading far from the low of the day at $50.15. The $50 level is an important one for the shares as a move below would confirm a major top in share price as most clearly seen on a 1-year daily chart. Resistance is at $51.89.