U.S. com­pa­nies will be al­lowed to do busi­ness with Venezuela’s state-owned oil and gas com­pa­ny af­ter the Trea­sury De­part­ment eased sanc­tions, with some lim­i­ta­tions, on Wednes­day as the Trump ad­min­is­tra­tion looks for ways to boost world oil sup­plies dur­ing the Iran war.

The Trea­sury is­sued a broad au­tho­riza­tion al­low­ing Petróleos de Venezuela S.A, or PDVSA, to di­rect­ly sell Venezue­lan oil to U.S. com­pa­nies and on glob­al mar­kets, a mas­sive shift af­ter Wash­ing­ton for years had large­ly blocked deal­ings with Venezuela’s gov­ern­ment and its oil sec­tor.

Sep­a­rate­ly, the White House said Trump would waive, for 60 days, Jones Act re­quire­ments for goods shipped be­tween U.S. ports to be moved on U.S.-flagged ves­sels. The 1920s law, de­signed to pro­tect the Amer­i­can ship­build­ing sec­tor, is of­ten blamed for mak­ing gas more ex­pen­sive.