The Organization of Petroleum Exporting Countries wants its members to rein in oil output, the group’s chief was quoted as saying Wednesday. OPEC must rein in output in line with the agreed ceiling of 30 million barrels a day, OPEC Secretary-General Abdalla Salem el-Badri was quoted as saying by the Gulf Oil Review. OPEC is still producing 1.2 million barrels a day above this threshold despite an agreement to keep that level in June, according to data from secondary sources compiled by OPEC analysts last week.