WPX ENERGY, INC. AND THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SIXTH SUPPLEMENTAL INDENTURE Dated as of June 17, 2020 to the INDENTURE Dated as of September 8, 2014Supplemental Indenture • June 17th, 2020 • WPX Energy, Inc. • Crude petroleum & natural gas • New York
