Putin's friend: "say goodbye to OPEC": May 10, 2016 link.
Internal differences are killing OPEC and its ability to influence the markets has all but evaporated, top Russian oil executive Igor Sechin told Reuters in some of his harshest remarks ever about the oil cartel.OPEC in tatters: April 18, 2016.
Track slump in oil prices here, 2014 - 2015: link here.
OPEC never was a cartel: December 7, 2015.
Saudi's action results in free-fall in price of oil: link here -- December 1, 2014.
This week's OPEC meeting: most important in years, link here -- November 25, 2014.
OPEC free-for-all: organization disbands production quota monitoring committee -- May 28, 2013.