CNBC | US judge halts construction of the Keystone XL oil pipeline CNBC A federal judge in Montana halted construction of the Keystone XL oil pipeline on Thursday on the grounds that the U.S. government did not complete a full analysis of the environmental impact of the TransCanada project. The ruling deals a major setback ... US judge blocks construction of Keystone oil pipeline US court halts construction of Keystone XL oil pipeline US judge halts construction of Keystone XL oil pipeline |