OPEC's oil output fell in December due to lower supply from Iran and Venezuela, which offset an OPEC+ agreement to raise production for the month, a Reuters survey found on Friday.The Organization of the Petroleum Exporting Countries pumped 28.40 million barrels per day last month…<p><p>https://www.marinelink.com/news/opec-oil-output-falls-december-low-supply-534227</p></p>