A flag with the Organization of the Petroleum Exporting Countries (OPEC) logo is seen before a news conference at OPEC’s headquarters in Vienna, Austria December 10, 2016. REUTERS/Heinz-Peter Bader World oil markets are slowly tightening as demand rises while investors wait to see if production cuts agreed by OPEC and other producers will be implemented as promised, the International Energy Agency (IEA) said on Thursday. In its monthly oil market report, the IEA said output cuts announced by the Organization of the Petroleum Exporting Countries and 11 non-OPEC producers in November had “entered their probation period”. OPEC agreed in November to cut production by 1.2 million barrels per day (bpd) to 32.5 million bpd for the first six months of 2017, together with another 558,000 bpd in cuts from the likes of Russia, Oman and Mexico. “It is far too soon to see what level of compliance has been […]