X0306 4 2020-11-20 0 0001528129 Laredo Petroleum, Inc. LPI 0001528258 Warburg Pincus Private Equity X O&G, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001451560 Warburg Pincus X Partners, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001414561 Warburg Pincus X, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001414564 Warburg Pincus X GP L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001621874 WPP GP LLC C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001621242 Warburg Pincus Partners, L.P. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001621224 Warburg Pincus Partners GP LLC C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0000929408 WARBURG PINCUS & CO. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 0001162870 WARBURG PINCUS LLC C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 Common Stock, par value $0.01 per share (''Common Stock'') 2020-11-20 4 S 0 187192 10.8905 D 1820990 D Common Stock 2020-11-20 4 S 0 5989 10.8905 D 58581 D Common Stock 2020-11-23 4 S 0 670387 11.2481 D 1150603 D Common Stock 2020-11-23 4 S 0 21447 11.2481 D 37134 D Common Stock 2020-11-24 4 S 0 546382 11.7696 D 604221 D Common Stock 2020-11-24 4 S 0 17480 11.7696 D 19654 D Common Stock 2020-11-24 4 S 0 83468 12.4857 D 520753 D Common Stock 2020-11-24 4 S 0 2670 12.4857 D 16984 D Common Stock 537737 I See footnotes See Exhibit 99.1; Note 1. See Exhibit 99.1; Note 2. See Exhibit 99.1; Note 3. See Exhibit 99.1; Note 4. See Exhibit 99.1; Note 5. See Exhibit 99.1; Note 6. See Exhibit 99.1; Note 7. See Exhibit 99.1; Note 8. See Exhibit 99.1; Note 9. See Exhibit 99.1; Note 10. See Exhibit 99.1; Note 11. See Exhibit 99.1; Note 12. See Exhibit 99.1; Note 13. See Exhibit 99.1 Exhibit List: Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filer Information Exhibit 99.3 - Joint Filers' Signatures /s/ Robert B. Knauss 2020-11-24