Eight international oil firms operating in Iraq's semi-autonomous Kurdistan region said they would not resume oil exports through Turkey's Ceyhan on Friday despite an announcement from Baghdad that the restart was imminent.

Iraq's Ministry of Oil said on Saturday it had invited global foreign companies operating under the Association of the Petroleum Industry of Kurdistan (APIKUR) umbrella, along with firms contracted by the Kurdistan Regional Government (KRG),

Iraq has invited international oil companies and semi-autonomous Kurdistan's energy regulator for talks aimed at restarting crude exports from the region, following a years-long dispute over revenue and costs.

U.S. President Donald Trump's administration is piling pressure on Iraq to allow Kurdish oil exports to restart or face sanctions alongside Iran, eight sources with direct knowledge of the matter told Reuters.