FOURTH SUPPLEMENTAL INDENTURESupplemental Indenture • December 18th, 2023 • Nisource Inc. • Electric & other services combined • New York
Contract Type FiledDecember 18th, 2023 Company Industry JurisdictionFOURTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of December 18, 2023, between NiSource Inc., a Delaware corporation (“NiSource”), and The Bank of New York Mellon, a New York banking corporation, not in its individual capacity but solely as successor trustee (the “Trustee”) under the Indenture dated as of February 14, 1997 among NiSource Inc. successor to NiSource Capital Markets, Inc., an Indiana corporation formerly known as NIPSCO Capital Markets, Inc. and successor to NIPSCO Industries, Inc., and The Chase Manhattan Bank, as original trustee (as supplemented, the “Indenture”).