As President Donald Trump vows to return U.S. energy investment to Venezuela, the Latin American country remains on the hook for billions of dollars owed to American energy companies following years-old legal battles over oil contracts. Once a key supplier to global oil markets, Venezuela reshaped its relationship with international energy companies in the mid-2000s, as then-President Hugo Chávez tightened state control over the oil industry. Between 2004 and 2007, Chávez effectively forced foreign companies...










