CARACAS/WASHINGTON—Venezuela released two jailed U.S. citizens on Tuesday in an apparent goodwill gesture toward the Biden administration following a visit to Caracas by a high-level U.S. delegation. One of the freed prisoners was Gustavo Cardenas, among six Citgo oil executives arrested in 2017 and convicted on charges the U.S. government says were fabricated. The other was a Cuban American, identified as Jorge Alberto Fernandez, detained on unrelated charges. “Tonight, two Americans who were wrongfully detained in Venezuela will be able to hug their families once more,” President Joe Biden said in a statement. “We are bringing Gustavo Cardenas and Jorge Fernandez home,” he said. He gave no more details about their release. The weekend visit by the U.S. delegation focused not only on the fate of detained Americans but on the possibility of easing U.S. oil sanctions on the OPEC member to fill a supply gap if Biden banned Russian …