X0306 4 2017-01-17 false 0001358071 CONCHO RESOURCES INC CXO 0001396406 Wright E Joseph ONE CONCHO CENTER 600 W. ILLINOIS AVENUE MIDLAND TX 79701 false true false false Exec VP & Chief Operating Off Common Stock 2017-01-17 4 S false 12703 134.63 D 164381 D Common Stock 2017-01-17 4 S false 13297 135.42 D 151084 D Common Stock 2017-01-17 4 S false 1300 136.44 D 149784 D Common Stock 2017-01-17 4 S false 700 137.21 D 149084 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 15, 2016. Represents shares sold at a weighted-average price of open market same-day sale. Sale of shares took place at actual prices ranging from $134.06 to $135.05 per share. Represents shares sold at a weighted-average price of open market same-day sale. Sale of shares took place at actual prices ranging from $135.06 to $136.05 per share. Represents shares sold at a weighted-average price of open market same-day sale. Sale of shares took place at actual prices ranging from $136.06 to $136.75 per share. Represents shares sold at a weighted-average price of open market same-day sale. Sale of shares took place at actual prices ranging from $137.07 to $137.60 per share. /s/ Travis L. Counts, as attorney-in-fact 2017-01-18