Labor has stepped up pressure on Energy Minister Angus Taylor over a police investigation into the use of a fake document by demanding he face Parliament next week rather than leaving the country for a global energy summit.

In a move designed to force Mr Taylor to answer questions, the opposition is refusing to help him take leave from Parliament on the grounds he should not leave the country while the investigation continues.

Minister for Energy and Emissions Reduction Angus Taylor. Credit:Alex Ellinghausen

Mr Taylor slammed the tactic as a sign Labor was "not serious" about fuel security and his plan to discuss Australian oil reserves at the International Energy Association conference in Paris next week.

The minister appears likely to stay in Australia for the final week of Parliament for the year as he and Prime Minister Scott Morrison face more questions into false claims Mr Taylor made about a $15.9 million travel bill at the City of Sydney, based on an allegedly doctored document.