Enbridge workers weld pipe just west of Morden, Man., Thursday, Aug. 16, 2018. Oil export options for western Canadian producers continue to expand in small increments as delays persist for major proposed pipeline projects. On Friday, Calgary-based Enbridge Inc. said an optimization program on its Mainline system — which accounts for about 70 per cent of Canadian oil exports into the United States — is expected to add 100,000 barrels per day of additional capacity by year-end. The Enbridge mainline system. Enbridge That’s at the top end of its original target of 50,000 to 100,000 bpd and a 15,000 bpd increase over the 85,000 bpd expected by Canadian Natural Resources Ltd. Enbridge added it plans to bring on another 50,000 bpd of capacity in a smaller pipeline expansion early next year. Last summer, rival TC Energy Corp. held an open season to assign 50,000 bpd of added incremental capacity on its existing Keystone pipeline system into the U.S. On a conference call, Enbridge CEO Al Monaco said having the Canadian side of its Line 3 replacement pipeline in service by Dec. 1 will help meet producer demand on a Mainline system that has been operating at near maximum capacity, […]