CNBC | OPEC sees smaller oil glut in 2017 but flags US shale recovery CNBC OPEC signaled a falling oil supply surplus in 2017 on Wednesday as the exporter group's output slips from a record high ahead of a deal to cut supply and outside producers show positive initial signs of complying with the accord. However, The ... Oil price slides on prospect of rising US production Rising US shale-oil output threatens OPEC's production pact $25 trillion investment needed to meet future oil demand |