Updates
** U.S.-listed shares of uranium companies rise premarket
** Meta META.O agrees to a deal with Constellation Energy CEG.O to keep one of its utility's reactors in Illinois operating for 20 years through 2047
** Shares of CEG rise 13.1% to $354.60
** Sam Altman-backed nuclear startup OKLO OKLO.N up 6.9%
** Utility Vistra Corp VST.N and power equipment maker GE Vernova GEV.N rise 5% and 2.1%, respectively
** Shares of Uranium Energy UEC.A rise ~9%, Centrus Energy LEU.A up 7.1%, and Energy Fuels UUUU.A jumps 7.4%
** NuScale Power SMR.N and Nano Nuclear Energy NNE.O up 6.7% and 6.1%, respectively
(Reporting by Sumit Saha in Bengaluru)
((Sumit.Saha@thomsonreuters.com))