Type	Name	Date
Credit agreement	First Amendment to Revolving Credit Agreement, among Western Gas Partners, LP, as the Borrower, Wells Fargo Bank, National Association, as Administrative Agent, and the Lenders party thereto	12/20/2018
Credit agreement	364-Day Credit Agreement, among Western Gas Partners, LP, as the Borrower, Barclays Bank PLC, as Administrative Agent, and the lenders party thereto	12/20/2018
Underwriting agreement	Underwriting Agreement, by and among the Partnership and Western Gas Holdings, LLC, and Morgan Stanley & Co. LLC and RBC Capital Markets, LLC, as representatives of the several underwriters named therein	10/07/2016
Underwriting agreement	Underwriting Agreement, by and among the Partnership and Western Gas Holdings, LLC, and Deutsche Bank Securities Inc. and Mizuho Securities USA Inc., as representatives of the several underwriters named therein	07/06/2016
Underwriting agreement	Underwriting Agreement, by and among the Partnership and Western Gas Holdings, LLC, and Morgan Stanley & Co. LLC and U.S. Bancorp Investments, Inc., as representatives of the several underwriters named therein	05/27/2015
Underwriting agreement	Underwriting Agreement, by and among the Partnership and Western Gas Holdings, LLC, and RBS Securities Inc. and Mitsubishi UFJ Securities (USA), Inc., as representatives of the several underwriters named therein	03/17/2014
Underwriting agreement	Underwriting Agreement, by and among the Partnership and Western Gas Holdings, LLC, and Wells Fargo Securities, LLC and U.S. Bancorp Investments, Inc., as representatives of the several underwriters named therein	08/06/2013
Underwriting agreement	Underwriting Agreement, by and among the Partnership, Western Gas Holdings, LLC and RBS Securities Inc. and Barclays Capital Inc., as representatives of the several underwriters named therein	06/26/2012
Indenture	Indenture, among Western Gas Partners, LP, as Issuer, the Subsidiary Guarantors named therein, as Guarantors, and Wells Fargo Bank, National Association, as Trustee	05/18/2011
Indenture	First Supplemental Indenture, among Western Gas Partners, LP, as Issuer, the Subsidiary Guarantors named therein, as Guarantors, and Wells Fargo Bank, National Association, as Trustee	05/18/2011
Credit agreement	Revolving Credit Agreement, among Western Gas Partners, LP, Wells Fargo Bank, National Association, as the administrative agent and the lenders party thereto	03/29/2011
Credit agreement	Revolving Credit Agreement, among Western Gas Partners, LP, Wells Fargo Bank National Association, as the administrative agent and the lenders party thereto	10/30/2009

Type	Name	Date
Equity incentive plans	Western Gas Partners, LP 2017 Long-Term Incentive Plan	10/17/2017

Type	Name	Date
Acquisition / asset purchase agreement	Purchase and Sale Agreement, between WGR Asset Holding Company, LLC and Delaware Basin Midstream, LLC	03/03/2015
Merger agreement	Agreement and Plan of Merger, by and among Western Gas Partners, LP, Maguire Midstream LLC and Nuevo Midstream, LLC	10/28/2014
Acquisition / asset purchase agreement	Purchase and Sale Agreement, by and among Western Gas Partners, LP, Kerr-McGee Gathering LLC and Encana Oil & Gas (USA) Inc	01/18/2011