UPDATE 2.35pm: Shares in Woodside fell after the oil and gas producer was forced to lower its full-year production guidance because of two unforeseen events.
The company said it had reduced its full year output expectation from 88-94MMboe (million barrels of oil equivalent) to 85-89MMboe.
Woodside attributed the production downgrade to an unplanned shutdown of the Pluto LNG processing train resulting in a temporary interruption to production.
"It is expected production will recommence shortly," the company said in a statement.
"The likely impact is a deferral of approximately 2MMboe (Woodside share)."
Woodside also advised the scheduled refurbishment of its Vincent floating production storage and offloading vessel would take longer than expected.
"Production is now anticipated to recommence in October, which would result in a deferral of about 1MMboe (Woodside share)," the company said.
Woodside shares closed down $1.20, or 3.35 per cent, at $34.62 after hitting an intraday low of $34 in a broadly weaker market.