The U.S. on Friday expanded sanctions waivers on Venezuela, easing the way for investment in the South American country’s energy and petrochemical sectors and allowing for fertilizer exports as Washington seeks to help American farmers hit by rising prices stemming from the Iran war. The U.S. Treasury Department issued three updated general licenses as part of the move. The department said the changes were intended to support the revitalization of Venezuela’s energy industry while ensuring global commodity markets remain well-supplied, although it was not immediately clear how much fertilizer Venezuela had available to export, or how quickly it would reach the U.S.