Shell Australia has announced it will close its oil refinery at Clyde, in western Sydney, earlier than expected.
Last year, Shell announced it would shutter the 100-year-old refinery and convert it into a fuel terminal to distribute domestic and imported refined products by mid-2013.
But the company now says the closure will happen in late September this year.
Around 280 jobs are expected to be lost as a result, but Shell says around 30 of the affected employees have already found new positions.
At the time of the initial announcement, Shell said the closure was prompted by the costs of maintaining such a large facility, and competition from new mega-refineries in Asia, which can produce fuel for the Australian market.
It said the carbon tax was not behind the decision.
The move will leave the company’s Geelong site as its sole Australian refinery.