National oil giant Saudi Aramco is not reducing its new investment in oil and gas production capacity despite cost-cutting due to low oil prices, its chairman Khalid Al-Falih said on Monday.

Al-Falih also said Saudi Arabia could survive a low oil price for "a long, long time".

"Our investments in capacity of oil and gas have not slowed down - we have been able to do a lot of cuts in spending by simply driving down costs," Falih told a panel discussion at a business conference.

National oil giant Saudi Aramco is not reducing its new investment in oil and gas production capacity despite cost-cutting due to low oil prices, its chairman Khalid Al-Falih said on Monday.

"Our investments in capacity of oil and gas have not slowed down - we have been able to do a lot of cuts in spending by simply driving down costs," Al-Falih told a panel discussion at a business conference.

Authorities have not yet decided whether the government's planned sale of a stake in Saudi Aramco will involve only a stake in its downstream ventures, or a percentage of the whole company including its upstream oil and gas business, Al-Falih said.

A sale of a stake in the whole company would involve issues related to law and sovereignty that would need to be resolved, he added.

Al-Falih said the percentage of Aramco's business that would ultimately be offered would not "move the needle significantly" in terms of money raised for the government, but would instead aim to develop the local private sector.

The plunge of oil prices since June 2014 has pushed Saudi Arabia's fiscal position into deficit and spurred the government to examine new ways of expanding its revenue base and diversifying its economy.

However, Riyadh's strategy of defending its share of global crude sales requires it to continue to invest heavily to maintain its energy production capacity and position as the world's top oil exporter.

Global oil supply and demand will ultimately balance at a "moderate" price, Al-Falih said.

Speaking to reporters on the sidelines of the business conference, Al-Falih did not say when the balance might be achieved or at what price levels. - Reuters