X0306 4 2018-06-11 0 0001009672 CARBO CERAMICS INC CRR 0001662888 Wilks Brothers, LLC 17010 IH 20 CISCO TX 76437 0 0 1 1 See Remarks 0001641792 Wilks Dan H. 17010 IH 20 CISCO TX 76437 0 0 1 0 0001641796 Wilks Staci 17010 IH 20 CISCO TX 76437 0 0 1 0 0001641794 Wilks Farris 17010 IH 20 CISCO TX 76437 0 0 1 0 Put Option (obligation to buy) 13.00 2018-06-11 4 P 0 700 3.96 A 2018-06-11 2018-06-15 Common Stock 70000 0 D Put Option (obligation to buy) 13.00 2018-06-12 4 P 0 1060 3.88 A 2018-06-12 2018-06-15 Common Stock 106000 0 D Put Option (obligation to buy) 13.00 2018-06-13 4 P 0 585 3.99 A 2018-06-13 2018-06-15 Common Stock 58500 0 D Put Option (obligation to buy) 13.00 2018-06-14 4 P 0 3930 4.45 A 2018-06-14 2018-06-15 Common Stock 393000 0 D The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock. This Form 4 is also being filed by (i) Dan H. Wilks, in his capacity as a managing member of Wilks Brothers, LLC (ii) Farris Wilks, in his capacity as a managing member of Wilks Brothers, LLC and (iii) Staci Wilks. Dan H. Wilks and Staci Wilks are husband and wife and Dan H. Wilks and Farris Wilks are brothers. Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of its respective pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4. Dan H. Wilks, By: /s/ Morgan D Neff, Morgan D Neff, as Attorney-in-Fact 2018-06-27 Staci Wilks, By: /s/ Morgan D Neff, Morgan D Neff, as Attorney-in-Fact 2018-06-27 Farris Wilks, By: /s/ Morgan D Neff, Morgan D Neff, as Attorney-in-Fact 2018-06-27 WILKS BROTHERS, LLC, By: /s/ Morgan D Neff, Name: Morgan D Neff, Title: Attorney-in-Fact 2018-06-27