BNP Paribas CEO Jean-Laurent Bonnafe said his bank would support a sustainable-energy transition. : BNP Paribas, France's biggest listed bank, said on Wednesday it would no longer work with oil and natural gas companies that primarily do business in shale or oil sands as it plans to boost support for renewable energy projects. The bank also said that it would no longer finance new projects that are primarily involved in the transportation or export of oil and gas from shale or oil sands.