Independent MP Rob Oakeshott will speak with Prime Minister Julia Gillard later on Friday about her offer of a ministry in Labor's minority government.
Mr Oakeshott has been offered a regional affairs portfolio.
The MP for Lyne will issue a statement on Friday afternoon about his intentions.
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Earlier, Nationals frontbencher Barnaby Joyce suggested Oakeshott sought a ministry in the Labor minority government rather than being offered one by Prime Minister Julia Gillard.
Former PM Kevin Rudd is also in the headlines as observers wait to see if he has been handed the foreign ministry.
The Independent MP, whose vote Labor secured to retain power, reportedly sought cabinet positions while serving as a crossbencher in the NSW parliament.
The Australian newspaper said Mr Oakeshott approached former NSW premier Morris Iemma in 2007 and asked to join his ministry.
Senator Joyce said the report showed the MP was not "an impartial discerner" when considering which of the two major parties he would back to form a federal minority government.
"This would clearly suggest that Mr Oakeshott was not telling us all the facts when he was going through his deliberations," he told the Sky News on Friday.
"It stands to reason he would probably ask to be a minister in a Labor government again."
Mr Oakeshott had failed to be upfront when he announced his support for Labor because he had revealed only half the facts, Senator Joyce said.
"We all want to make sure that regional Australia is well represented but you have got to stand behind the decisions you make in your political life," he said, adding there was a need to be transparent with the people about political motives.
