A looming fuel shortage triggered by the Iran war threatens to deliver another price shock for Americans over the next few weeks, with experts warning that U.S. oil inventories could be depleted by the time of the nation's 250th birthday. In an interview with Bloomberg TV last week, the economist Jeff Currie, senior advisor at The Carlyle Group, said that U.S. oil storage tanks—the network of facilities used to hold crude oil and refined products—could run out “somewhere in that July 4 time