The emergence of the Surat Basin region as a major energy producer is helping to spur the long-term overhaul of Queensland's chief east-west freight artery.

The opening stage of the $635 million overhaul of the Warrego Highway has commenced, with work beginning on the duplication of the motorway section between Toowoomba and Oakey in southeastern Queensland. The initial phase of the Warrego Highway upgrade will see a total of $110 million spent on the creation of two lanes running…