South Bow Corp.’s Keystone oil pipeline has been shut after a spill in southeast North Dakota, curtailing a conduit that carries as much as 15% of Canada’s crude exports to the US. The pipeline was shut within two minutes after …

South Bow Corp.’s Keystone oil pipeline has been shut after a spill in southeast North Dakota, curtailing a conduit that carries as much as 15% of Canada’s crude exports to the US. The pipeline was shut within two minutes after …