Saudi Aramco closed a deal to sell a stake in its natural-gas pipelines for $15.5 billion

An investor group, led by BlackRock, acquired a 49% stake in Aramco Gas Pipelines Co. in a lease and leaseback deal in December, according to a statement. The consortium also comprised Keppel Infrastructure Trust, Silk Road Fund, China Merchants Capital, and Saudi Arabia’s state-owned Hassana Investment Co.

In a similarly-structured transaction in April, Aramco sold a $12.4 billion stake related to its oil pipelines to investors including Washington-based EIG.

BlackRock’s investment comes even as Chief Executive Officer Larry Fink puts pressure on firms to boost environmental, social and governance (ESG) standards.

“Getting to a net zero world will not happen overnight,” Fink said in the statement. “It requires us to shift the energy mix in incremental steps to achieve a green energy future. Bold, forward-thinking incumbents like Aramco have the technical expertise and capital to play a crucial role in this transformation.”

The deal is part of Saudi Arabia’s drive to sell assets and use the money to fund new industries from artificial intelligence to electric vehicles, while also increasing output of both oil and gas.