Royal Dutch Shell, ExxonMobil and Total all blame a decline in their downstream businesses for slumping quarterly earnings.
Russia denied permission for Greenpeace to enter the Kara Sea, but its ship entered the waters Saturday.
Group planned to protest energy companies' oil exploration activities.
State's lawyers say ExxonMobil and Citgo should pay $700 million to monitor and clean up groundwater contamination caused by gas additive MTBE.
Russia's second largest crude producer says ExxonMobil has offered it the development rights in southern Iraq's West Qurna-1 oil field that the U.S. oil company wants rid of.
Nicholas Mockford was killed in front of his wife on a street in a suburb of the Belgian capital of Brussels.
