Type	Name	Date
Indenture	Indenture by and among Kansas Gas Service Securitization I, L.L.C., U.S. Bank Trust Company, National Association, as Indenture Trustee, and U.S. Bank National Association, as Securities Intermediary (including the form of the Bonds and the Series Supplement), to be	11/14/2022
Underwriting agreement	Underwriting Agreement, between ONE Gas, Inc., and RBC Capital Markets, LLC, Truist Securities, Inc., and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein	08/08/2022
Credit agreement	First Amendment to Second Amended and Restated Credit Agreement, among ONE Gas, Inc., Bank of America, N.A., as administrative agent, swing line lender, and a letter of credit issuer, and the lenders party thereto	03/17/2022
Credit agreement	First Amendment to Second Amended and Restated Credit Agreement, among ONE Gas, Inc., Bank of America, N.A., as administrative agent, swing line lender, and a letter of credit issuer, and the lenders party thereto	03/17/2022
Underwriting agreement	Underwriting Agreement, between ONE Gas, Inc., and BofA Securities, Inc., J.P. Morgan Securities LLC and Mizuho Securities USA LLC, as representatives of the several underwriters named therein	03/11/2021
Credit agreement	Credit Agreement, among ONE Gas, Inc., the lenders from time to time party thereto and Bank of America, N.A., as administrative agent	02/22/2021
Credit agreement	Credit Agreement, among ONE Gas, Inc., the lenders from time to time party thereto and Bank of America, N.A., as administrative agent	02/22/2021
Underwriting agreement	Underwriting Agreement, between ONE Gas, Inc., BofA Securities, Inc. and Mizuho Securities USA LLC, as representatives of the several underwriters named therein	05/04/2020
Credit agreement	Credit Agreement, among ONE Gas, Inc., Bank of America, N.A., as administrative agent, and the other lenders party thereto	04/07/2020
Underwriting agreement	Underwriting Agreement, between ONE Gas, Inc. and U.S. Bancorp Investments, Inc. and J.P. Morgan Securities, LLC, as representatives of the several underwriters named therein	11/06/2018
Indenture	Second Supplemental Indenture, among ONE Gas, Inc. and U.S. Bank National Association, as trustee, with respect to the 4.50% Notes due 2048	11/06/2018
Credit agreement	Amended and Restated Credit Agreement, among ONE Gas, Inc., Bank of America, N.A., as administrative agent, swing line lender and a letter of credit issuer, and the other lenders and letter of credit issuers parties thereto	10/06/2017
Credit agreement	Amended and Restated Credit Agreement, among ONE Gas, Inc., Bank of America, N.A., as administrative agent, swing line lender and a letter of credit issuer, and the other lenders and letter of credit issuers parties thereto	10/06/2017
Indenture	Supplemental Indenture, by and between ONE Gas, Inc. and U.S. Bank National Association, as trustee	01/30/2014