Business

Oil tumbles most in four weeks

Russia doesn't want to change the current deal because any further supply curbs would send the wrong message to the ...

Crude oil fell sharply, ending the longest winning streak this year, amid reported Russian opposition to deeper output cuts.

Caltex tips profit rise on wider refiner margins

Net profit "on a replacement cost" basis was expected between $290 million and $310 million in the first half.

Fuel supplier Caltex Australia says it expects underlying half-yearly net profit to rise as much as 22 per cent as it benefits from higher refiner margins and bigger volumes of premium diesel sales.