Australia's largest resource project has added to its gas reserves, after oil and gas giant Chevron made another discovery off the Pilbara coast.
An exploration well has found 30 metres (97 feet) of net gas pay.
The well is located in the Greater Gorgon Area gas fields, about 65km northwest of Barrow Island, where Chevron is building its Gorgon liquefied natural gas (LNG) plant.
The well was drilled in 210 metres of water to a total depth of more than 5km.
It is Chevron's 14th discovery offshore of north-western Australia since 2009.
Gorgon is a $43 billion project, encompassing 11 gas fields and a 15 million tonne per annum LNG plant on Barrow Island that will last at least 40 years, according to Chevron.
The new discovery would support more expansion of Gorgon, which initially will have three LNG processing trains but could be expanded to five trains.
Chevron operates Gorgon and has a 47.3 per cent stake, with fellow petroleum majors Exxon Mobil and Shell holding 25 per cent.
Sales agreements for up to 25 years have been reached for Gorgon with customers in China, India, Japan and South Korea.