UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 (Exact Name of Registrant as Specified in its Charter) Delaware 81-4891595 (State or Other Jurisdiction of Incorporation or Organization) FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38081 Liberty Oilfield Services ...

Liberty Oilfield Services Inc. (NYSE:LBRT) Q4 2019 Results Earnings Conference Call February 6, 2020 10:00 AM ET Company Participants Chris Wright - Chief Executive Officer Michael Stock - Chief Financial Officer Conference Call Participants Chase Mulvehill - Bank of America Waqar Syed - AltaCorp Capital Stephen Gengaro - Stifel Chris Voie - Wells Fargo James West - Evercore ISI Blake Gendron - Wolfe Research Ian Macpherson - Simmons Scott Gruber - Citi George O'Leary - TPH Emily Boltryk - Scotia Howard Wei ...

Liberty Oilfield Services Inc. (NYSE:LBRT) Q3 2019 Earnings Conference Call October 30, 2019 10:00 AM ET Company Participants Chris Wright - Chief Executive Officer Michael Stock - Chief Financial Officer Ron Gusek - President Conference Call Participants John Daniel - Simmons Energy Sean Meakim - JPMorgan Blake Gendron - Wolfe Research David Anderson - Barclays Chris Voie - Wells Fargo George O'Leary - Tudor Pickering Holt & Co. Waqar Syed - AltaCorp Capital Chase Mulvehill - Bank of America Stephen Gengar ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38081 Liberty Oilfield Services Inc. (Exact Name of Registrant as Specified in its Charter) (State or Other Jurisdiction of Incorporation or Organization) 950 17 ...

10101010110100101010101010101 (100011010101010101010101010101010 100101010000001111110100010 11110100010 110100101001001001001 011010010000111110011011110101010101010101 /10 010101010101 01017111000101110000010110001011001 001100111111 (0 001010101010101010 0101 01010101010101011100101001001101 010110010011013111111110 1010 0010101010101010101010101010 0101010101012010010 0101010001 101010101 010100101010101010 101010010101010 10101010100101000 10101010100 LISTED Investor Presentation August 2019 NYSE: LBRT ...

Liberty Oilfield Services, Inc. (NYSE:LBRT) Q2 2019 Earnings Conference Call July 31, 2019 10:00 AM ET Company Participants Christopher Wright - Founder, Chairman & CEO Michael Stock - CFO & Treasurer Ron Gusek - President Conference Call Participants Christopher Voie - Wells Fargo Securities Sean Meakim - JPMorgan Chase & Co. George O'Leary - Tudor, Pickering, Holt & Co. Stephen Gengaro - Stifel, Nicolaus & Company Blake Gendron - Wolfe Research Thomas Curran - B. Riley FBR, Inc. Operator Good morning, and ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38081 Liberty Oilfield Services Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 81-4891595 (State or Other Jurisdiction of Incorporation or Organ ...

Liberty Oilfield Services (NYSE:LBRT) Q1 2019 Earnings Conference Call May 1, 2019 10:00 AM ET Company Participants Chris Wright - Chief Executive Officer Michael Stock - Chief Financial Officer Conference Call Participants Sean Meakim - JPMorgan John Daniel - Simmons Energy George O’Leary - Tudor, Pickering, Holt Angie Sedita - Goldman Sachs Vebs Vaishnav - Howard Weil Stephen Gengaro - Stifel Operator Good morning and welcome to the Liberty Oilfield Services First Quarter 2019 Earnings Conference Call. [O ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38081 Liberty Oilfield Services Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 81-4891595 (State or Other Jurisdiction of Incorporation or Orga ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-38081 Liberty Oilfield Services Inc. (Exact name of registrant as specified in its charter) Delaware 81-4891595 (State or other jurisdiction of incorporation or organizat ...