Type	Name	Date
By-Laws	Amended and Restated Bylaws of the Company	06/01/2017
By-Laws	Amended and Restated Bylaws of the Company	11/03/2016

Type	Name	Date
Employment agreement	EMPLOYMENT AGREEMENT	12/29/2022
Employment agreement	EMPLOYMENT AGREEMENT	12/07/2022
Employment agreement	EMPLOYMENT AGREEMENT	09/06/2022
Employment agreement	Employment Agreement between the Company and Joseph W. Baty	04/07/2020
Employment agreement	Employment Agreement between the Company and Bryant J. Yates	04/07/2020
Employment agreement	Employment Agreement between the Company and Terrence Moorehead	09/26/2018
Employment agreement	Employment Agreement between the Company and Mr. Baty	11/03/2016
Separation agreement	Separation Agreement between the Company and Stephen M. Bunker	03/08/2016
Employment agreement	Amended and Restated Employment Agreement, by and between the Company and Gregory L. Probert	02/19/2015
Equity incentive plans	NSP 2012 Stock Incentive Plan	08/03/2012
Stock option agreement	Stock Option Agreement, by and between the Company and D. Wynne Roberts	02/23/2012
Employment agreement	Employment Agreement, by and between the Company and D. Wynne Roberts	02/23/2012
Employment agreement	Employment Agreement, by and between the Company and Gregory L. Probert	06/22/2011
Stock option agreement	Stock Option Agreement, by and between the Company and Gregory L. Probert	06/22/2011
Employment agreement	Employment Agreement, by and between the Company and Michael Dean	03/16/2010

Type	Name	Date
Other	Letter Agreement between the Company and Gregory L. Probert	09/26/2018