Type	Name	Date
Employment agreement	Employment Agreement, between Patterson-UTI Management Services, LLC and Mark S. Siegel	04/09/2020
Employment agreement	Employment Agreement, between Patterson-UTI Energy, Inc. and John E. Vollmer III	12/27/2017
Employment agreement	Employment Agreement, between Patterson-UTI Energy, Inc. and John E. Vollmer III	12/27/2017
Employment agreement	Employment Agreement, between Patterson-UTI Energy, Inc. and C. Andrew Smith	09/08/2017
Equity incentive plans	Patterson-UTI Energy, Inc. 2014 Long-Term Incentive Plan	06/30/2017
Employment agreement	Employment Agreement between Patterson-UTI Drilling Company LLC and James M. Holcomb	01/17/2017
Employment agreement	Employment Agreement between Patterson-UTI Drilling Company LLC and James M. Holcomb	01/17/2017
Equity incentive plans	Patterson-UTI Energy, Inc. 2014 Long-Term Incentive Plan	04/21/2014
Equity incentive plans	Third Amendment to the Patterson-UTI Energy, Inc. 2005 Long-Term Incentive Plan	04/27/2010
Equity incentive plans	Fourth Amendment to the Patterson-UTI Energy, Inc. 2005 Long-Term Incentive Plan	04/27/2010