Global miner BHP Group (BHP.AX) is considering getting out of oil and gas in a multibillion-dollar exit as it looks to speed up its retreat from fossil fuels.

The world's biggest miner is reviewing its petroleum business and considering options including a trade sale, the report said, adding that the deliberations were still at an early stage and no final decision has been made.

"BHP does not comment on rumor or speculation," company spokesperson Judy Dane said.

Mining companies around the world are under growing shareholder pressure to reduce their carbon footprint and take stringent climate actions to cut emissions, as calls for a shift towards cleaner forms of energy accelerate.

Analysts at RBC said they valued BHP's oil and gas portfolio focused on the U.S. Gulf of Mexico, eastern Canada and Australia at $14.3 billion.

"With rising ESG (environmental, social and governance)pressures facing the industry, but also as this business potentially enters into a re-investment phase, we can see why management might be contemplating an exit," they said in a note.

Considering options for the oil and gas portfolio is part of BHP's scenario planning, said two banking sources, who declined to be named as the talks are private.

BHP, the bulk of whose earnings come from its iron ore and copper units, sold its shale business to British oil major BP Plc (BP.L) for $10.4 billion in 2018.