CNBC's Dan Murphy goes behind the scenes at OPEC HQ in Vienna, Austria and speaks with Secretary-General Haitham Al-Ghais.

OPEC said the global economy may perform better than expected in the second half of the year despite trade conflicts and ...

The Organization of the Petroleum Exporting Countries said it anticipates an easing of global trade tensions in the coming ...

The oil market continued to edge lower yesterday, with a stronger US dollar providing some headwinds. OPEC reported no change ...

OPEC, which along with its allies is ramping up oil output, expects "very strong" oil demand in the third quarter and a tight ...

OPEC projects rising oil demand through 2050 and calls for $18.2 trillion in oil and gas investments to secure future energy ...

The oil cartel OPEC will soon be old enough to retire, but will oil be phased out as the world embraces the green revolution?

The average daily crude production of Nigeria increased above the quota allocated to it by the Organisation of the Petroleum ...

Kazakhstan's oil output rose last month after slightly falling in May, and remained above the country's frequently-exceeded ...

The Organization of Petroleum Exporting Countries (OPEC) says Nigeria's average daily crude oil production increased to 1.505 ...

Speaking to Argus Media, NNPC’s Group Chief Executive Officer, Bashir Ojulari, said the country’s current crude oil output is ...

According to OPEC’s data, this is the first time the country’s production output would meet the 1.5mb/d cuts quota in years.