Spanish gas transportation company Enagas will acquire a 10.93 percent indirect ownership interest in U.S. energy infrastructure company Tallgrass Energy, in a deal worth $590 million.

Enagas will partner with affiliates of U.S. investment firm Blackstone and Singapore’s sovereign wealth fund GIC on the deal for a stake in Tallgrass.

At the close of the deal, Blackstone will retain a majority, GIC will retain a minority stake while Enagas will own almost 25 percent of the holding company.

Following the close of the transaction, Enagas will acquire an additional 3.5 percent of the holding company for approximately $83 million, subject to the completion of conditions.