Keystone oil pipeline operated by TC Energy partially shut down, causing pressure drop and increased oil futures.

Keystone oil pipeline, operated by TC Energy, partially shut down on Thursday, causing a drop in pressure on a segment of the line. The pipeline transports Canadian crude to the U.S. Midwest and Gulf Coast, and has a history of ruptures. The shutdown led to an increase in oil futures, with the U.S. benchmark crude futures edging above $79 a barrel. TC Energy and Wood Mackenzie did not immediately comment on the situation.