 On 20 November 2009, the refinery was shut down permanently as part of cost-cutting measures by Valero Energy Corporation.Anticipated economic impacts of the closure include major reductions in tax revenue and retails sales for Delaware City, increased materials acquisition cost for petroleum products re-sellers and an increase to consumer gasoline prices in the longer term.On 25 January 2010, Petroplus, the largest independent refining company in Europe, announced its interest in buying the refinery.