Twenty-Third Supplemental Indenture Sample Contracts

QUEST DIAGNOSTICS INCORPORATED, as Issuer and THE BANK OF NEW YORK MELLON, as Trustee Twenty-Third Supplemental Indenture Dated as of August 19, 2024
Twenty-Third Supplemental Indenture • August 19th, 2024 • Quest Diagnostics Inc • Services-medical laboratories • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE (this “Twenty-Third Supplemental Indenture”), dated as of August 19, 2024, between QUEST DIAGNOSTICS INCORPORATED, a Delaware corporation (the “Company”), and THE BANK OF NEW YORK MELLON, a New York banking corporation, as Trustee (the “Trustee”).

TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of July 13, 2010 TO INDENTURE Dated as of June 25, 1999
Twenty-Third Supplemental Indenture • July 13th, 2010 • Kroger Co • Retail-grocery stores • New York
AFLAC INCORPORATED, AS ISSUER AND THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of March 12, 2020
Twenty-Third Supplemental Indenture • March 12th, 2020 • Aflac Inc • Accident & health insurance • New York

THIS TWENTY-THIRD SUPPLEMENTAL INDENTURE (this “Twenty-Third Supplemental Indenture”) is made as of the 12th day of March, 2020, by and between AFLAC INCORPORATED, a Georgia corporation, as issuer (the “Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., a national banking association, as trustee (the “Trustee”):

TO
Twenty-Third Supplemental Indenture • November 4th, 2004 • Allete Inc • Electric & other services combined
Stryker Corporation and U.S. Bank National Association, as Trustee Twenty-Third Supplemental Indenture Dated as of June 4, 2020 to Senior Debt Indenture Dated as of January 15, 2010 Establishing a series of Securities designated 1.950% Notes due 2030
Twenty-Third Supplemental Indenture • June 4th, 2020 • Stryker Corp • Surgical & medical instruments & apparatus • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of June 4, 2020 (this “Twenty-Third Supplemental Indenture”) between Stryker Corporation, a corporation duly organized and existing under the laws of the State of Michigan (herein called the “Company”), having its principal office at 2825 Airview Boulevard, Kalamazoo, Michigan, and U.S. Bank National Association, a nationally chartered banking association, as trustee (herein called the “Trustee”).

THE SOUTHERN COMPANY TO WELLS FARGO BANK, NATIONAL ASSOCIATION, TRUSTEE TWENTY- THIRD SUPPLEMENTAL INDENTURE DATED AS OF FEBRUARY 26, 2021 SERIES 2021B 1.75% SENIOR NOTES DUE MARCH 15, 2028
Twenty-Third Supplemental Indenture • February 26th, 2021 • Southern Co • Electric services • New York

THIS TWENTY-THIRD SUPPLEMENTAL INDENTURE is made as of the 26th day of February, 2021, by and between THE SOUTHERN COMPANY, a Delaware corporation, 30 Ivan Allen Jr. Blvd., N.W., Atlanta, Georgia 30308 (the “Company”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, a national banking association, 150 East 42nd Street, 40th Floor, New York, New York 10017 (the “Trustee”).

VIRGINIA ELECTRIC AND POWER COMPANY Issuer AND Trustee Twenty-Third Supplemental Indenture Dated as of September 1, 2025
Twenty-Third Supplemental Indenture • September 10th, 2025 • Virginia Electric & Power Co • Electric services

THIS TWENTY-THIRD SUPPLEMENTAL INDENTURE is made as of the 1st day of September, 2025, by and between VIRGINIA ELECTRIC AND POWER COMPANY, a Virginia corporation, having its principal office at 600 East Canal Street, Richmond, Virginia 23219 (the “Company”), and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (as successor to U.S. Bank National Association), a national banking association, as Trustee, having a Corporate Trust Office at 1051 East Cary Street, Suite 600, Richmond, Virginia 23219 (herein called the “Trustee”).

DISCOVERY COMMUNICATIONS, LLC, Issuer WARNER BROS. DISCOVERY, INC., Parent Guarantor WARNERMEDIA HOLDINGS, INC. (f/k/a Magallanes, Inc.) and SCRIPPS NETWORKS INTERACTIVE, INC., each, a Subsidiary Guarantor and Trustee TWENTY- THIRD SUPPLEMENTAL...
Twenty-Third Supplemental Indenture • June 16th, 2025 • Warner Bros. Discovery, Inc. • Cable & other pay television services • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of June 13, 2025 (the “Twenty-Third Supplemental Indenture”), to the Base Indenture (defined below) among Discovery Communications, LLC, a Delaware limited liability company (the “Company”), Warner Bros. Discovery, Inc. (f/k/a Discovery, Inc.), a Delaware corporation (the “Parent Guarantor”), WarnerMedia Holdings, Inc. (f/k/a Magallanes, Inc.), a Delaware corporation (“WMH”), Scripps Networks Interactive, Inc., an Ohio corporation (“Scripps” and, together with WMH, the “Subsidiary Guarantors”), and U.S. Bank Trust Company, National Association, as Trustee (the “Trustee”).

BURLINGTON NORTHERN SANTA FE, LLC and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., Trustee TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of April 13, 2020 to INDENTURE Dated as of December 1, 1995 3.050% Debentures due February 15, 2051
Twenty-Third Supplemental Indenture • April 13th, 2020 • Burlington Northern Santa Fe, LLC • Railroads, line-haul operating • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of April 13, 2020 (this “Supplemental Indenture”), between Burlington Northern Santa Fe, LLC, a limited liability company duly formed and existing under the laws of the State of Delaware (as successor-in-interest to Burlington Northern Santa Fe Corporation), having its principal office at 2650 Lou Menk Drive, Fort Worth, Texas 76131-2830 (the “Company”), and The Bank of New York Mellon Trust Company, N.A. (formerly known as The Bank of New York Trust Company, N.A.), a national banking association, as successor-in-interest to J.P. Morgan Trust Company, National Association, as successor-in-interest to Bank One Trust Company, N.A., as successor-in-interest to The First National Bank of Chicago, as trustee (the “Trustee”), having a corporate trust office at 601 Travis Street, 16th Floor, Houston, Texas 77002 (such address, as changed from time to time by the Trustee with notice to the Holders, the “Corporate Trust Office”).

PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE, doing business as EVERSOURCE ENERGY, AND Successor to WACHOVIA BANK, NATIONAL ASSOCIATION and to FIRST UNION NATIONAL BANK Formerly Known as FIRST FIDELITY BANK, NATIONAL ASSOCIATION, NEW JERSEY Successor to...
Twenty-Third Supplemental Indenture • August 31st, 2020 • Public Service Co of New Hampshire • Electric services

THIS TWENTY-THIRD SUPPLEMENTAL INDENTURE dated as of August 1, 2020, between PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE, doing business as Eversource Energy (with its successors and assigns, the “Company”), a corporation duly organized and existing under the laws of the State of New Hampshire, having its principal place of business at Energy Park, 780 North Commercial Street in Manchester, New Hampshire 03101, and U.S. BANK NATIONAL ASSOCIATION (as successor to Wachovia Bank, National Association, and by merger to First Union National Bank, formerly known as First Fidelity Bank, National Association, New Jersey, successor in trust to Bank of New England, National Association (formerly known as New England Merchants National Bank) and to New Bank of New England, National Association), said U.S. BANK NATIONAL ASSOCIATION being a national banking association duly organized and existing under the laws of the United States of America having a corporate trust office at 333 Thornall Street, Four

BP Capital Markets p.l.c., Company AND BP p.l.c., Guarantor TO The Bank of New York Mellon Trust Company, N.A., Trustee Twenty-Third Supplemental Indenture Dated as of February 13, 2015 Supplement to Indenture Dated as of 8 March 2002 Floating Rate...
Twenty-Third Supplemental Indenture • February 13th, 2015 • Bp Capital Markets PLC • Petroleum refining

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of February 13, 2015, among BP Capital Markets p.l.c., a corporation duly organized and existing under the laws of England and Wales (herein called the “Company”), having its principal office at Chertsey Road, Sunbury on Thames, Middlesex TW16 7BP United Kingdom, and BP p.l.c., a corporation duly organized and existing under the laws of England (herein called the “Guarantor”), having its registered office at 1 St. James’s Square, London SW1Y 4PD, England, and The Bank of New York Mellon Trust Company, N.A., a national banking association having its Corporate Trust Office at 2 North LaSalle Street, Suite 1020, Chicago, Illinois 60602, as Trustee (herein called the “Trustee”) under the Base Indenture (as hereinafter defined).

THE CHARLES SCHWAB CORPORATION, as Issuer and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee 6.136% Fixed-to-Floating Rate Senior Notes due 2034 5.875% Senior Notes due 2026 Twenty-Third Supplemental Indenture Dated as of August 24, 2023...
Twenty-Third Supplemental Indenture • August 24th, 2023 • Schwab Charles Corp • Security brokers, dealers & flotation companies • California

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of August 24, 2023 (“Supplemental Indenture”), to the Indenture dated as of June 5, 2009 (as amended, modified or supplemented from time to time in accordance therewith, other than with respect to a particular series of debt securities, the “Base Indenture” and, as amended, modified and supplemented by the Twenty-First Supplemental Indenture (as defined below) and by this Supplemental Indenture, the “Indenture”), by and among THE CHARLES SCHWAB CORPORATION (the “Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as trustee (the “Trustee”).

TEXAS-NEW MEXICO POWER COMPANY To as Trustee TWENTY-THIRD SUPPLEMENTAL INDENTURE dated as of February 14, 2025 Supplemental to the First Mortgage Indenture dated as of March 23, 2009 (file no.: 09-0007931211) Establishing a series of Securities...
Twenty-Third Supplemental Indenture • February 14th, 2025 • Texas New Mexico Power Co • Electric services • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of February 14, 2025, between TEXAS-NEW MEXICO POWER COMPANY, a corporation organized and existing under the laws of the State of Texas (the “Company”), and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, a national banking association (ultimate successor as trustee to The Bank of New York Mellon Trust Company, N.A.), as Trustee under the Indenture hereinafter referred to (the “Trustee”).

TWENTY-THIRD SUPPLEMENTAL INDENTURE AUTHORIZING
Twenty-Third Supplemental Indenture • July 20th, 2017
T-MOBILE USA, INC. and T-MOBILE US, INC. and EACH OF THE SUBSIDIARY GUARANTORS FROM TIME TO TIME PARTY HERETO
Twenty-Third Supplemental Indenture • December 6th, 2021 • T-Mobile US, Inc. • Radiotelephone communications • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE (this “Twenty-Third Supplemental Indenture”), dated as of December 6, 2021 (the “Additional Notes Issue Date”), among T-Mobile USA, Inc., a Delaware corporation (the “Issuer”), T-Mobile, US, Inc., a Delaware corporation (“Parent,” as a guarantor), and the other guarantors party hereto (together with Parent, the “Guarantors”) and Deutsche Bank Trust Company Americas, a New York banking corporation, as Trustee.

T-MOBILE USA, INC. and T-MOBILE US, INC. and EACH OF THE SUBSIDIARY GUARANTORS FROM TIME TO TIME PARTY HERETO 3.500% SENIOR NOTES DUE 2037 TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of February 11, 2025 DEUTSCHE BANK TRUST COMPANY AMERICAS as...
Twenty-Third Supplemental Indenture • February 11th, 2025 • T-Mobile US, Inc. • Radiotelephone communications • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE (this “Twenty-Third Supplemental Indenture”), dated as of February 11, 2025 (the “Series Issue Date”), among T-Mobile USA, Inc., a Delaware corporation (the “Issuer”), T-Mobile, US, Inc., a Delaware corporation (“Parent,” as a guarantor), and the other guarantors party hereto (together with Parent, the “Guarantors”) and Deutsche Bank Trust Company Americas, a New York banking corporation, as Trustee, Paying Agent and Registrar.

PACIFICORP (An Oregon Corporation) TO THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. (as successor to The Bank of New York Mellon) As Trustee under PacifiCorp’s Mortgage and Deed of Trust, Dated as of January 9, 1989 Twenty- Third Supplemental...
Twenty-Third Supplemental Indenture • January 8th, 2009 • Pacificorp /Or/ • Electric services

THIS INDENTURE, dated as of the 1st day of January, 2009, made and entered into by and between PACIFICORP, a corporation of the State of Oregon, whose address is 825 NE Multnomah, Portland, Oregon 97232 (hereinafter sometimes called the “Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. (as successor to The Bank of New York Mellon), a national banking association whose address is 700 S. Flower Street, Suite 500, Los Angeles, California 90017 (the “Trustee”), as Trustee under the Mortgage and Deed of Trust, dated as of January 9, 1989, as heretofore amended and supplemented (hereinafter called the “Mortgage”), is executed and delivered by the Company in accordance with the provisions of the Mortgage, this indenture (hereinafter called the “Twenty-Third Supplemental Indenture”) being supplemental thereto.

ONEOK, INC. as Issuer; ONEOK PARTNERS, L.P. and ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP as Guarantors; and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of August 24, 2023 to INDENTURE...
Twenty-Third Supplemental Indenture • August 25th, 2023 • Oneok Inc /New/ • Natural gas transmisison & distribution • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of August 24, 2023 (this “Supplemental Indenture”), among ONEOK, INC., an Oklahoma corporation (the “Company”), ONEOK PARTNERS, L.P., a Delaware limited partnership, and ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP, a Delaware limited partnership (each a “Guarantor” and together, the “Guarantors”), and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (successor in interest to U.S. Bank National Association), as trustee under the Indenture referred to below (in such capacity, the “Trustee”).

EQT CORPORATION, as Issuer and THE BANK OF NEW YORK MELLON, as Trustee TWENTY- THIRD SUPPLEMENTAL INDENTURE Dated as of April 2, 2025 to INDENTURE Dated as of March 18, 2008 7.500% Senior Notes due 2030
Twenty-Third Supplemental Indenture • April 3rd, 2025 • EQT Corp • Crude petroleum & natural gas • New York

TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of April 2, 2025 (this “Twenty-Third Supplemental Indenture”), between EQT Corporation, a corporation duly organized and existing under the laws of the Commonwealth of Pennsylvania, having its principal office at EQT Plaza, 625 Liberty Avenue, Suite 1700, Pittsburgh, Pennsylvania 15222 (the “Company”), and The Bank of New York Mellon, a New York banking corporation, as trustee (the “Trustee”).

GENESIS ENERGY, L.P., GENESIS ENERGY FINANCE CORPORATION and the Guarantors named herein and TWENTY-THIRD SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE DATED AS OF September 16, 2025 REGIONS BANK, Trustee
Twenty-Third Supplemental Indenture • October 30th, 2025 • Genesis Energy Lp • Pipe lines (no natural gas)

This TWENTY-THIRD SUPPLEMENTAL INDENTURE, dated as of September 16, 2025 (this “Twenty-Third Supplemental Indenture”), is among Genesis Energy, L.P., a Delaware limited partnership (the “Company”), Genesis Energy Finance Corporation, a Delaware corporation (together with the Company, the “Issuers”), the 2028 Guarantors referred to below, the 2030 Guarantors referred to below, the 2029 Guarantors referred to below, the 2032 Guarantors referred to below, the 2033 Guarantors referred to below, the party identified under the caption “New Guarantor” on the signature pages hereto (the “New Guarantor”) and Regions Bank, as Trustee (as defined below).