Keystone, whose initial leg was proposed in 2005, is actually a network of existing and proposed pipelines developed by TC Energy, formerly TransCanada. In 2012, when gasoline prices hit $4 a gallon and seemed destined to go higher, President Obama flew to Cushing, Oklahoma, the major hub for pipelines and oil storage in the United States. Striding dramatically out of a labyrinth of huge pipes, he took to the podium to, in effect, dedicate the southern segment of the Keystone system. “A company called TransCanada has applied to build a new pipeline to speed more oil from Cushing to
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