CNBC | Oil prices give up gains after Trump says he'll announce Iran nuclear deal decision Tuesday CNBC The widespread expectation that U.S. President Donald Trump will withdraw from the Iranian nuclear pact has supported oil prices lately. Trump has a May 12 deadline to determine whether to extend sanction waivers. British Foreign Secretary Boris ... Oil hits the skids after Trump flags Iran decision Oil Falls Below $70 After Trump Promises Iran Decision Tomorrow What Trump's decision on Iran nuclear deal means for oil prices |