Up to 5 new countries can join OPEC deal: Novak
In December 2016, OPEC and non-OPEC producers reached their first deal since 2001 to curtail oil output jointly and ease a global glut after more than two years of low prices.
Non-OPEC oil producers such as Azerbaijan, Bahrain, Brunei, Equatorial Guinea, Kazakhstan, Malaysia, Mexico, Oman, Russia, Sudan, and South Sudan agreed to reduce output by 558,000 barrels per day starting from Jan. 1, 2017 for six months, extendable for another six months.
OPEC agreed to slash the output by 1.2 million barrels per day from Jan. 1.