Australian stocks tumbled 6 per cent after oil prices crashed. Photo / AP
Asian share markets, already weakened by the likely economic impact of the coronavirus outbreak, went into convulsions in response to plummeting oil prices.
By late in the Australian session, stock pries had fallen by 6.9 per cent - their biggest decline since the Global Financial Crisis.
The benchmark S&P/ASX200 index had dropped by about 400 points to 5817, led by falls in the big energy stocks.
US stock futures tumbled, with the losses triggering exchange rules that limit declines at 5 per cent, as plummeting oil prices added to the backdrop of dread surrounding the coronavirus.
The drop easily erased the rally that lifted cash equities in the final hour of trading on Friday, as crude sank more than 20 per cent in the deepest rout since the U.S.-led war in Iraq in 1991, Bloomberg reported.
While energy and commodity stocks only make up about 5 per cent the S&P 500, plunging crude prices exacerbated the blow to sentiment and stood as one of the starker signals of the outbreak's economic toll, the international financial news agency reported.
This follows falls of 10 per cent at the weekend on fears that Russia and Saudi Arabia will launch a full-scale price war.
Saudi Arabia slashed the price of its crude and upped production after Opec and Russia failed to agree on a supply response to coronavirus.
The industry had hoped that major players would agree on production cuts to mitigate the impact on global demand, but talks over the weekend in Vienna failed to reach an agreement.
The slowdown of the global economic activity caused by Covid-19 coronavirus has seen demand for fuel fall dramatically since January.
Prices for benchmark Brent crude and West Texas crude are now down close to 50 per cent since the most recent pre-virus peak.