 DENVER--BUSINESS WIRE--Liberty Oilfield Services Inc. NYSE: LBRT; Liberty or the Company announced today it will host investor meetings at the following conferences. Coker Palmer Energy Bus Tour on September 2 ATB Capital Markets Canadian Energy Excellence Virtual Conference on September 7 Barclays 2021 CEO Energy-Power Conference on September 9 and 10 A link to the webcast presentation, if applicable, and a copy of the slides that may be used during the meetings will be availabl 