Oil and gas multinational Sasol Chevron has proposed a scheme that could enable Australia to be self-sufficient in energy, reports Joseph Poprzeczny.”Australia is at a cross-roads regarding energy supply and security for the 21st century.” That’s the opening line of the Perth-based Sasol Chevron joint venture’s submission to the Senate Rural and Regional Affairs Transport Committee.The submission continues: “The declining domestic supply of oil, combined with rising demand for transport fuels, i…