21.   Multinational firms that pump the bulk of the oil have experienced frequent disruptions by militants who kidnap workers, seize oil facilities and sabotage pipelines.

22.   Multinational firms that pump the bulk of the oil have experienced frequent disruptions by the militants who kidnap workers, seize oil facilities and sabotage pipelines.

23.   Multinational firms such Shell and Chevron that pump the bulk of the oil have experienced frequent disruptions by militants who kidnap workers, capture oil facilities and sabotage pipelines.

24.   Nigerian villagers regularly kidnap oil workers or seize oil equipment in a bid to force oil companies to pay for alleged environmental damage and land use.

25.   Oil company workers are regularly kidnapped in Nigeria by ethnic militants seeking lucrative oil revenues from the government and ransom money from multinational firms.

26.   Right-wing paramilitary group says it kidnapped human rights workers.

27.   Several aid workers have been kidnapped in the southern and central region in recent months.

28.   Six Red Cross workers have been kidnapped in Chechnya this year.

29.   Six European aid workers were kidnapped during a reported border attack on northern Liberia by insurgents based in neighboring Guinea, officials said Thursday.

30.   The source said aid workers were apparently kidnapped in retaliation for the seizure earlier Friday by the Marjeteen militia of a Palestinian business partner of two Somali charcoal dealers.