Your links are rather lacking in the cost support of that claim.
Several companies have done Gas-to-Liquids (more typically diesel like rather than gasoline). They include majors like Shell.
Construction of the world's largest gas to liquids (GTL) plant, Pearl GTL in Qatar, is a major step towards meeting the worlds growing demand for cleaner energy.
http://www.shell.com.qa/home/content/qat/products_services/pearl/
I've followed such projects for years. It would make a world of difference to a place like the Alaskan North Slope. The technology is well developed. The economics don't work in the US, yet. Eventually I suspect they will.
and if we can make gasoline for less than $1.00 per gallon, this project will be a real money maker,"