The United States has extended a Treasury license that shields Venezuela-owned refiner CITGO Petroleum Corp from creditor actions through March 20, a move that preserves the company’s legal status while debt disputes continue, Reuters reported on Monday. The license prevents creditors from seizing Citgo’s U.S. assets as part of ongoing litigation tied to defaults by its ultimate owner, Venezuela’s state energy company. The protection has been repeatedly renewed over successive months and years as courts and claimants press…