The Financial Post reports in its Friday edition Enbridge said Thursday it planned to resume shipments on its biggest crude pipeline after shutting the line Tuesday because of a leak. A Bloomberg dispatch to the Post says Line 4 suffered a 1,350-barrel spill at its Regina terminal. The 796,000-barrel-per-day pipeline carries oil sands crude from Alberta to Superior, Wis. Graham White, a spokesman for the company, said a full cleanup of the spilled oil will continue into next week. Mr. White added the company has not declared force majeure, a legal clause excusing a company from meeting its commitments because of events beyond its control. The discount of heavy Western Canadian Select crude for February to U.S. benchmark West Texas Intermediate widened 15 cents to $16.15 a barrel Thursday, according to Net Energy in Calgary (all figures U.S.). WCS, which sold at an average discount to WTI of $18.72 a barrel over the past year, is typically cheaper than WTI because it has a higher sulphur content and takes more equipment to process into fuels. The crude must be shipped thousands of miles by pipeline or rail to refinery centres in the Midwest or Gulf Coast.