Duke Energy Indiana, LLC

EX-4.1 2 tm268077d1_ex4-1.htm EXHIBIT 4.1 Exhibit 4.1 Seventy-FOURTH SUPPLEMENTAL INDENTURE TO INDENTURE DATED SEPTEMBER 1, 1939 DUKE ENERGY INDIANA, LLC TO DEUTSCHE BANK NATIONAL TRUST COMPANY AS TRUSTEE DATED AS OF March 6, 2026 CREATING FIRST MORTGAGE BONDS, Series DDDD, 4.95%, DUE March 15, 2036 AND OTHERWISE SUPPLEMENTING AND AMENDING THE INDENTURE TABLE OF CONTENTS Page PARTIES: Company (Duke Energy Indiana, LLC, formerly named Duke Energy Indiana, Inc., formerly named…

8-K · 2026-03-06 · 0001104659-26-024731

EX-99.1 4 tm268077d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 Execution Version DUKE ENERGY indiana, LLC $500,000,000 FIRST MORTGAGE BONDS, SERIES DDDD, 4.95%, DUE MARCH 15, 2036 UNDERWRITING AGREEMENT March 4, 2026 BMO Capital Markets Corp. 151 West 42nd Street New York, New York 10036 CIBC World Markets Corp. 300 Madison Avenue, 8th Floor New York, New York 10017 MUFG Securities Americas Inc. 1221 Avenue of the Americas, 6th Floor New York, New York 10020 U.S. Bancorp Investments…

8-K · 2026-03-06 · 0001104659-26-024731

EX-4.1 2 tm2514217d5_ex4-1.htm EXHIBIT 4.1 Exhibit 4.1 Seventy-THIRD SUPPLEMENTAL INDENTURE TO INDENTURE DATED SEPTEMBER 1, 1939 DUKE ENERGY INDIANA, LLC TO DEUTSCHE BANK NATIONAL TRUST COMPANY AS TRUSTEE DATED AS OF May 15, 2025 CREATING FIRST MORTGAGE BONDS, Series CCCC, 5.90%, DUE May 15, 2055 AND OTHERWISE SUPPLEMENTING AND AMENDING THE INDENTURE TABLE OF CONTENTS …

8-K · 2025-05-15 · 0001104659-25-049477

EX-99.1 4 tm2514217d5_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 EXECUTION VERSION DUKE ENERGY indiana, LLC $300,000,000 FIRST MORTGAGE BONDS, SERIES CCCC, 5.90%, DUE MAY 15, 2055 UNDERWRITING AGREEMENT May 12, 2025 BMO Capital Markets Corp. 151 West 42nd Street New York, New York 10036 Mizuho Securities USA LLC 1271 Avenue of the Americas New York, New York 10020 RBC Capital Markets, LLC Brookfield Place 200 Vesey Street, 8th Floor New York, New York 10281 Scotia Capital (USA) Inc…

8-K · 2025-05-15 · 0001104659-25-049477