Agence France-Presse: US President Barack Obama lashed oil companies Friday for trying to divert blame for the Gulf of Mexico slick and vowed to sever the "cozy" ties between the industry and government regulators. As experts said the amount of oil flowing into the sea from the crippled Deepwater Horizon rig was likely much higher than estimated, Obama vowed he would not rest until the leak was contained and capped. Visibly angered by the gravity of the disaster and the failure to contain the spill …