Since late February the world's 100 largest oil and gas producers have been clearing roughly $30 million an hour in war windfall, and are projected to take an additional $234 billion by year end if oil holds near $100 a barrel. Saudi Aramco, Kuwait Petroleum, Gazprom, Rosneft and Lukoil account for most of it. ExxonMobil is about $11.0 billion and Chevron about $9.2 billion. Labeled projection.