X0206 3/A 2018-07-19 2018-07-23 0 0001358071 CONCHO RESOURCES INC CXO 0001086699 GRAY STEVEN D ONE CONCHO CENTER 600 W. ILLINOIS AVE. MIDLAND TX 79701 true false false false Common Stock 183483 D Common Stock 8017 I See Footnote Common Stock 72324 I See Footnote The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose. These securities are owned directly by a limited liability company, of which the reporting person and his wife are the only two members. This filing is being amended to correct the number of shares owned as of the reporting date. These shares were also omitted from one Form 4 filed by the reporting person after his original Form 3 was filed. These securities are owned by a trust, of which the reporting person is the sole trustee and his children are the only beneficiaries. /s/ Travis L. Counts, as attorney-in-fact 2019-01-04