The Ebola outbreak has curbed Exxon Mobil’s exploration plans in Africa, the firm’s leader confirmed.
The oil giant has postponed work, including plans to drill offshore in Liberia, as a precautionary measure.
Exxon, which has operations in Nigeria and Liberia, had drilling plans for blocks offshore in the West African country.
However, staff have been prevented from travelling to the countries which have been directly affected by the disease.
Chief executive Rex Tillerson said precautionary measure are also being taking related to workers families.
Mr Tillerson said: “We had some drilling plans for some blocks offshore West Africa in Liberia.
“We are having to look at when it would be prudent to resume operations there because you do have to have shore-based support.”
He said the response by the world’s largest publicly-traded oil company has so far been “fairly low level”.
Earlier this year, Energy Voice reported how oil firms withdrawing staff from Nigeria and Liberia after the World Health Organisation declared the Ebola outbreak to be an international public health emergency.
The disease is believed to have affected more than 7,100 people in West Africa and killed more than 3,300, according to the World Health Organisation.