The spill raised questions for environmentalists and safety advocates about whether TC Energy should keep a federal government permit that has allowed the pressure inside parts of its Keystone system — including the stretch through Kansas — to exceed the typical maximum permitted levels.Oil spill in rural Kansas creek shuts down Keystone pipeline Oil spill smears coast in Venezuelan tourist hotspot Pipeline operator agrees to $50M California spill settlement New report: Oil spills from offshore transportation way down “I’m watching this situation closely to learn more about this latest oil leak and inform ways to prevent future releases and protect public safety and the environment,” Democratic U.S. Rep. Donald Payne Jr., of New Jersey, tweeted.The nearly 2,700-mile (4345-kilometer) Keystone pipeline carries thick, Canadian tar-sands oil to refineries in Illinois, Oklahoma and Texas, with about 600,000 barrels moving per day from Canada to Cushing, Oklahoma.“This is going to be months, maybe even years before we get the full handle on this disaster and know the extent of the damage and get it all cleaned up,” said Zack Pistora, a lobbyist for the Sierra Club at the Kansas Statehouse.But Caram said: “When we see multiple failures like this of such large size and a relatively short amount of time after that pressure has increased, I think it’s time to question that.” In its report last year to Congress, the GAO said Keystone’s accident history was similar to other oil pipelines, but spills have gotten larger in recent years."