It’s barely a blip on the radar but this small rocky outcrop of WA will feed billions in to the states coffers.

The discovery of three rocks that only stick out of the water by a meter at high tide have redrawn territorial waters to give WA the lions share of the proposed are of the Browse basin resources.

Shadow resources minister Gary Gray said Browse FLNG would be a game changer.

"I don’t think people in WA quite realise the gargantuan scale of this Browse project to the State’s wealth, future and technical capacity," he said.

"This is simply the most significant economic development for WA since the sanctioning of the North West Shelf project in the 1980s.

It’s more significant than Gorgon because Browse brings a raft of new technologies and new capabilities."

"My advice is that WA is estimated to own about two-thirds of the Torosa field, which is the largest of the gas fields," he said. "That could mean increases in State royalty collections of up to $2.9 billion over the life of the Torosa field alone."