AAP

Fallen West Australian treasurer Troy Buswell has offered an apology after being fined $3,100 and disqualified from driving for one year over 11 traffic offences in one night.

Roc Oil and Horizon Oil have struck an $800 million deal to merge their assets, with the combined company looking to produce up to 20,000 barrels of oil per day.

The Australian share market is again higher, continuing the gains of the last seven consecutive trading days.

Coles' supermarkets and liquor stores sold $6.73 billion worth of goods during the March quarter, an increase of 3.9 per cent compared to a year earlier.

People earning more than $80,000 will be in the firing line if the federal government pushes ahead with a national debt levy.

The Australian dollar is weaker after stronger US data gave the greenback a boost.

US stocks have finished mostly higher as investors absorb new sanctions on Russia and look ahead to a busy week of economic news and earnings.

Oil prices have fallen in London but edged higher in New York with fresh Western sanctions on Moscow milder than feared and Libya taking more steps to increase exports.

Business conditions among small and medium-sized firms in Western Australia have declined despite the national average jumping to a four-year high.

The Australian share market has closed higher for the seventh straight session due to support for high yielding local stocks.

The $1 billion return of cleaning and catering services firm Spotless Group to the share market is set to be the largest listing in nearly four years.

Two Asian companies seeking control of food producer Goodman Fielder say they are undeterred by the company's rejection of their $1.27 billion takeover offer.

The share market has made a steady start to the week as renewed concern over tensions in Ukraine weighs on global markets.

The big four banks have defended their lending standards after a report linked them to companies accused of illegal land grabs in developing countries.

The Australian dollar is weaker amid escalating tension in Ukraine.

US stocks have slumped after a dim earnings outlook from Amazon sparked a big retreat in tech stocks and as world leaders signalled growing worry over Ukraine.

Western Australia remains the nation's best performing economy but the Northern Territory is a close second.

The share market closed firm at near six year highs following a sixth consecutive day of gains.

Toll roads operator Transurban has extended its reach into Queensland, acquiring a string of Brisbane motorways from the Queensland government for more than $7 billion.

Australian billionaire and Ramsay Health Care founder Paul Ramsay is in a serious condition in a European hospital.

The share market is continuing its upward momentum, opening higher after low inflation data prompted a rally.

Western Australian iron ore producer Atlas Iron achieved record shipments in the March quarter but has also been hit by weaker commodity prices.

Oil prices have fallen as US commercial crude-oil stockpiles hit an all-time high on the strength of production in the world's biggest oil-consuming country.

Gold prices are higher as renewed tensions in Eastern Europe and mixed US economic data buoy investor interest.

The Australian dollar is slightly higher as it struggles to recover from losses made after the release of weaker-than-expected March quarter inflation figures.

The Australian share market has hit another high after a fifth consecutive day of gains, driven by low inflation.

Newcrest Mining's chief operating officer Sandeep Biswas will take over as the gold producer's chief executive and managing director from July 4.

Lower than expected inflation means the Reserve Bank of Australia can keep the cash rate at its current low, according to economists.

Property developer Stockland will wait to hear what investors have to say about the rejection of its $2.4 billion takeover proposal for Australand before considering further options.

Gold prices have fallen to the lowest level in 10 weeks, as investors ignore tensions in Ukraine to focus on an improving US economy and falling Chinese demand for the precious metal.

US oil prices have plummeted on expectations of another increase in the nation's inventories, suggesting tepid demand in the world's biggest crude consumer.

The Australian dollar is holding its ground ahead of the release of what is expected to be strong March quarter inflation figures.