Nigerian militants have advised oil companies to evacuate staff.

Nigerian gunmen on 14 May announced that give oil companies additional 48 hours to evacuate staff from the Niger Delta region. This reports Reuters.
The rebels claim that after the expiry of that period will be shooting at helicopters and aircraft. Representatives of oil companies, in turn, responded that the security precautions will increase, but to evacuate the staff they do not intend to. According to the industry, such threats were heard very many times.
On Wednesday, 13 May, the militants gave the oil companies day to evacuate staff. The ultimatum has not had the impact on world oil prices, said the agency.
Furthermore, one of the groups on Thursday announced that the militants kidnapped some boat in the Nile Delta and held hostage 15 people. Official confirmation of this information has been received.
Especially a lot of threats against representatives of the mining industry seemed to militants in January 2009, but then the members of groups are not carried out the stated intentions. The militants were in favor of the nationalization of natural resources of Nigeria.