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

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

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

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?

Nigeria's crude oil production has again exceeded the quota assigned to it by the Organisation of Petroleum Exporting ...

The increase, which the group said was a response to “a steady global economic outlook,” was higher than some analysts ...

OPEC ministers, top energy firm CEOs and oil and gas analysts and traders gathered for the OPEC Seminar in Vienna this week.

Energy ministers talked through production capacity, investment and the green transition at this week’s OPEC conference in ...

Nigeria’s average daily crude production rose above the quota allocated to it by the Organisation of the Petroleum Exporting ...

OPEC has excluded five of the world’s leading news organizations from covering its biennial oil seminar in Vienna, attended ...