Exxon Mobil Corporation announced that it will streamline its upstream organization and centralize project delivery across the company to support previously announced plans to double operating cash flow and earnings by 2025. The reorganization will be effective April 1 and involve creation of three new upstream companies -- ExxonMobil Upstream Oil & Gas Company, ExxonMobil Upstream Business Development Company and ExxonMobil Upstream Integrated Solutions Company.