Chevron will have to work on myriad technical issues at Venezuela’s aging oil fields before pumping crude there again, Report informs, citing The Wall Street Journal.

“The Biden administration made a significant shift in its Venezuela policy when it allowed Chevron Corp. CVX -0.29%decrease; red down pointing triangle to pump oil in the South American country again, but the decision will yield little increase to the world’s oil production in the short-term,” the publication notes.

The US company will have to contend with myriad technical issues at Venezuela’s aging oil fields and a complicated network of remaining US sanctions that must be altered to ensure more of the country’s oil reaches the global market.