 DENVER--BUSINESS WIRE--Liberty Oilfield Services Inc. NYSE: LBRT announced today that the company will hold its Investor Day in Denver, Colorado, on Thursday, June 17, 2021. The Liberty leadership team will be discussing macro trends in the energy industry, technology driving the next phase of the shale revolution and Libertys ESG strategic initiatives, technology leadership and financial outlook. Technology and innovation are at the foundation of smarter, more valuable service. The Libert 