DealsGCM Grosvenor to invest up to $100m in energy supplier Vesper EnergyGCM Grosvenor will acquire a minority ownership stake in Vesper Energy.ByIris Dorbian13 September 2023•1 min readJavaScript is required to read this article. Please enable it in your browser and reload the page.DealsEnergy / oil & gasNatural ResourcesBriefs