The staff were evacuated to Dubai and there are "no indicators that companies operating the oil fields are facing any security risks," Basra Oil Company says.
The move will not affect production, project development or scheduled maintenance in the West Qurna oil field, it added.
The statement did not provide details of what led to the evacuation of the 30 workers.
The oil field is run jointly by ExxonMobil ( XOM )
and the Iraqi company, employing 1,700 people, including Iraqis and foreigners, said Basra Oil Company. 1
9659006] ExxonMobil told CNN Business in an e-mail "As a matter of practice, we do not share specifications related to operating personnel at our facilities."
"ExxonMobil has programs and measures available to ensure security to protect its people, operations and facilities. We are committed to ensuring the safety of our employees and contractors at all of our facilities around the world," spokeswoman Julie said. L. King.
Earlier this week, the US Department of Foreign Affairs ordered departures from non-emergency US government members from Iraq amid rising tensions between the United States and Iran Iraq's neighbor to the east. The tensions have risen between Washington and Tehran since Washington scrapped a distinctive nuclear agreement with Iran, which briefly ended its economic and diplomatic isolation.
The Trump administration reimposed severe sanctions against Iran, including on its huge oil industry.
Recently, the Trump administration has accused Tehran of threats to US troops and interests.
Iranian leaders have denied Iranian involvement in attacks on oil tankers in the Gulf and at a Saudi oil station, and they claimed that Washington unnecessarily escalated tensions with Tehran.