WESTERN Australia has entered a new era of oil and gas-led development that will underpin the state's economic growth for decades, according to the head of the $43 billion Gorgon LNG project at Barrow Island.

WESTERN Australia has entered a new era of oil and gas-led development that will underpin the state's economic growth for decades, according to the head of the $43 billion Gorgon LNG project at Barrow Island.