The trip comes as the South Asian nation struggles to meet domestic gas supply needs as winter approaches while battling to contain a current account deficit swelled by energy payments, mostly for oil.

Junior oil minister Musadik Malik did not immediately respond to a request for comment on Monday.

The sources provided no further details, such as the exact agenda, who the Pakistani officials would meet in Russia or when the talks will take place.

Pakistan Finance Minister Ishaq Dar last month said that the country is considering buying discounted Russian oil, pointing out that neighbour India has been purchasing oil from Moscow and Islamabad also has a right to explore the possibility.

Pakistan has been unable to procure Liquified Natural Gas (LNG) from the international market because spot prices remain out of its range and shipments under long-term deals remain insufficient to match rising demand.

With dwindling local gas reserves, the country has begun to ration supplies to residential and commercial consumers. Local media has also reported that oil supplies remain tenuous owing to difficulties in paying for imports.