Iraq plans to export 3.163 million barrels per day (bpd) of Basra crude from its southern ports in December, slightly lower than in this month, five sources with knowledge of the matter said on Monday.  The allocated December volume will be the lowest in four months, although Iraq exported more than what it had planned in October, seeking to be exempt from OPEC’s plan to limit supplies.  Basra Light crude exports in December are set to edge up to 2.437 million bpd, the sources said, citing a preliminary loading program from Iraq’s Oil Marketing Company (SOMO).