Diamondback Energy Appoints Industry Veteran Holderness to Board / Latest / By mark Diamondback Energy has named Darin G. Holderness, who founded and served as CFO at P&A Exchange LLC and CFO at ProPetro Holding Corp. as a board of directors at the Permian Basin E&P. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related