The Belgian oil products market is part of the Antwerp/ Rotterdam/ Amsterdam (ARA) oil refining trading and storage hub. Entry barriers are therefore low and access to product supply relatively unconstrained. Refined products can be sourced either from the Total and ExxonMobil refineries at Antwerp itself or moved into Belgium by barge from refineries located in the Netherlands at Rotterdam and Vlissingen. The Belgian oil market is mature across most sectors with little or no long term oil demand growth anticipated. Fuel prices are underpinned by the government run Contrat Programme' maximum price formula.