Saskatchewan's premier says he's concerned about the stance taken by his Ontario and Quebec counterparts in regards to the Energy East Pipeline project.

The $12-billion project seeks to connect more than one million barrels of western crude a day to oil refineries in Eastern Canada.

Ontario Premier Kathleen Wynne and Quebec Premier Philippe Couillard said last week that greenhouse gas emissions must be considered in the development of the project.

Wynne also wants assurances there will be consultations with First Nations and other communities in the path of the pipeline, an emergency response plan, and guarantees that Ontario's current supply of natural gas is secure.

Premier Brad Wall says a rigorous National Energy Board process will ensure the project is up to environmental and safety standards.

He adds that he believes the premiers from Ontario and Quebec are creating "unnecessary barriers" to the project, which he calls straightforward.