Reuters: Venezuela plans to introduce a new tax on oil companies to help pay for environmental damage and to compensate the Venezuelan people, oil minister Rafael Ramirez said on Tuesday. Ramirez, speaking to reporters at a conference in Edmonton, added that OPEC-member Venezuela was sending to China crude oil that U.S. oil giant Exxon Mobil did not want for its Chalmette, Louisiana, refinery. Venezuela has been in a dispute Exxon Mobil over the country’s nationalization of a …