The Alberta Government is spending $3.7-billion plans to lease 4,400 rails cars to ship Alberta crude. The cars are expected to be in service by July and will ship 120,000 barrels of crude a day. The province has signed contracts with Canadian Pacific Railway and Canadian National Railway to transport the cars. Crude rail shipments reached record levels last fall largely owing to pipeline constraints, but they have fallen since the beginning of the year. Several large producers have said the current price differential has made shipping by rail uneconomical. CP and CN have both experienced a drop in petroleum shipments by about a third since December.