Investors like to examine pricing anomalies, particularly related to commodities that could be viewed as substitutes but trade at radically different prices. One barrel of crude oil has approximately six times the energy content of one thousand cubic feet (mcf) ...

Earlier this week, Qatar Airways made history by operating the first ever commercial flight using a fuel partially derived from natural gas. The flight from London to Doha used a mixture of 50% conventional jet fuel and 50% synthetic kerosene ...