The Blackstone Group, together with GIC, Enagas, NPS and USS completed the acquisition of the remaining stake in Tallgrass Energy, a growth-oriented midstream energy infrastructure company, for $7bn. As of April 17, TGE’s Class A shares are longer publicly traded. The Blackstone group previously acquired a 44% stake in Tallgrass and in August offered $19.50 apiece for the remaining shares. Four months later, it sweetened the bid to $22.45 a share after big holders criticized the original offer.