President Barack Obama’s rejection of TransCanada Corp.’s proposed Keystone XL pipeline could give Venezuela’s ailing economy a lifeline. With the world’s largest oil reserves, the South American country produces heavy crude that’s similar in consistency to the one coming from Canada’s oil sands, and its economy relies largely on shipping it to the same U.S. Gulf Coast refineries that Keystone XL was meant to supply. “The number one beneficiary of all this will be Venezuela and other suppliers of heavy oil that ship to the Gulf Coast by tanker,” IHS Energy Inc. Vice President Jim Burkhard said by e-mail. […]