Trump's year in OPEC tweets: How the president deflected blame for rising oil prices
By Tom DiChristopher
Qatar To Saudi Arabia: We'd Rather Quit OPEC Than Cut Ties With Iran Or Close Al Jazeera
By Baker Institute
Qatar pulls out of Opec to focus on gas production
By Julia Kollewe
Qatar quitting OPEC means the oil cartel is now just a 'two-member organization,' oil analyst says
By Sam Meredith