US investment giant Blackstone Inc (<a href="https://www.nyse.com/quote/XNYS:BX" target="_blank">NYSE:BX</a>) has clinched a USD-11.5-billion (EUR 10.2bn) deal to acquire local energy holding company TXNM Energy (<a href="https://www.nyse.com/quote/XNYS:TXNM" target="_blank">NYSE:TXNM</a>), whose businesses are focused on advancing energy transition in New Mexico and meeting the growing power demand in Texas.