2014 Event Taxi service company Uber expands its presence in Latin America by partnering with Carlos Slim's cell phone company America Movil to place the Uber app on mobil phones throughout Mexico 2014 Event Exxon Mobil takes the initiative among energy companies to disclose its plans for dealing with climate change in response to a 2013 shareholder resolution; the company's move may set a standard for other energy companies to follow 2013 Event Wal-Mart revenue exceeds that of Exxon Mobil, becoming the largest company by revenue on the Fortune 500 list 1992 Event Mobil Oil tug with 12,000 gallons of oil run aground in Arthur Kill 1984 Event Mobil oil tanker spills 200,000 gallons into Columbia River
