Type	Name	Date
Credit agreement	Second Amendment to Credit Agreement, among Arch Coal, Inc. as borrower, the lenders from time to time party thereto, and Credit Suisse AG, Cayman Islands Branch, in its capacities as administrative agent and as collateral agent	04/03/2018
Credit agreement	First Amendment to Credit Agreement, among Arch Coal, Inc. as borrower, the lenders from time to time party thereto, and Credit Suisse AG, Cayman Islands Branch, in its capacities as administrative agent and as collateral agent	09/25/2017
Credit agreement	Credit Agreement, among Arch Coal, Inc. and certain of its subsidiaries, as borrowers, the lenders from time to time party thereto, and Regions Bank, in its capacities as administrative agent and as collateral agent	05/02/2017
Credit agreement	Credit Agreement, among Arch Coal, Inc. as borrower, the lenders from time to time party thereto, and Credit Suisse AG, Cayman Islands Branch, in its capacities as administrative agent and as collateral agent	03/08/2017
Registration rights agreement	Registration Rights Agreement	11/21/2016
Credit agreement	Credit Agreement, among Arch Coal, Inc., as borrower, the lenders from time to time party thereto and Wilmington Trust, National Association, in its capacities as administrative agent and as collateral agent	10/11/2016
Indenture	Second Supplemental Indenture among Arch Coal, Inc., the guarantors party thereto and U.S. Bank National Association, as trustee	07/17/2015
Indenture	Indenture, among Arch Coal, Inc., the subsidiary guarantors named therein, UMB Bank National Association, as trustee, and UMB Bank National Association, as collateral agent	12/17/2013
Credit agreement	Amendment No. 4 to Credit Agreement, among Arch Coal, Inc., as Borrower, certain subsidiaries of Arch Coal, Inc., as Guarantors, the Lenders party thereto, Bank of America, N.A., as Term	12/17/2013
Credit agreement	Second Amendment to Amended and Restated Credit Agreement, by and among Arch Coal, Inc., as Borrower, the guarantors party thereto, the lenders party thereto, Bank of America, N.A., as Term Loan Administrative Agent, and PNC Bank, National Association, as Revolver Administrative Agent	11/26/2012
Credit agreement	Third Amendment to Amended and Restated Credit Agreement, by and among Arch Coal, Inc., as Borrower, the guarantors party thereto, the revolver lenders party thereto and PNC Bank, National Association, as Revolver Administrative Agent	11/26/2012
Indenture	Indenture, among Arch Coal, Inc., the subsidiary guarantors named therein and UMB Bank National Association, as trustee	11/26/2012
Registration rights agreement	Registration Rights Agreement, by and among Arch Coal, Inc., the guarantors party thereto and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as representative of the initial purchasers named therein	11/26/2012
Credit agreement	First Amendment to Amended and Restated Credit Agreement, by and among Arch Coal, Inc., as Borrower, the Guarantors party thereto, the Lenders party thereto and PNC Bank, National Association, as Administrative Agent	05/17/2012
Credit agreement	Amended and Restated Credit Agreement, by and among the Company, the lenders party thereto, PNC Bank, National Association, as administrative agent and Bank of America, N.A., The Royal Bank of Scotland PLC and Citibank, N.A., as co-documentation agents	06/17/2011
Indenture	Indenture, by and among Arch Coal, Inc., the subsidiary guarantors named therein and UMB Bank National Association, as trustee	06/14/2011
Underwriting agreement	Underwriting Agreement	06/08/2011
Indenture	Indenture, by and among Arch Coal, Inc. and U.S. Bank National Association, as trustee	08/09/2010
Credit agreement	Fifth Amendment to Credit Agreement, by and among Arch Coal, Inc., the guarantors party thereto, the banks party thereto, Citicorp USA, Inc., JPMorgan Chase Bank, N.A. and Wachovia Bank, National Association, each in its capacity as syndication agent, Bank of America, N.A. (as successor-by-merger to Fleet National Bank), as documentation agent, and PNC Bank, National Association, as administrative agent for the banks	03/23/2010
Credit agreement	Fourth Amendment to Credit Agreement, by and among Arch Coal, Inc., the banks party thereto, Citicorp USA, Inc., JPMorgan Chase Bank, N.A. and Wachovia Bank, National Association, each in its capacity as syndication agent, Bank of America, N.A. (as successor-by-merger to Fleet National Bank), as documentation agent, and PNC Bank, National Association, as administrative agent for the banks	08/28/2009

Type	Name	Date
By-Laws	Amended and Restated Bylaws	12/16/2022

Type	Name	Date
Merger agreement	Agreement and Plan of Merger, by and among Arch Coal, Inc., Atlas Acquisition Corp. and International Coal Group, Inc	05/03/2011