X0306 4 2017-02-22 0 0001021860 NATIONAL OILWELL VARCO INC NOV 0001614165 Duff Scott K. 7909 PARKWOOD CIRCLE DRIVE HOUSTON TX 77036 0 1 0 0 VP Cntrlr Chf Acctg Offcr Common Stock 2017-02-22 4 A 0 16500 0.00 A 31818 D Common Stock 5727 I by 401(K) Plan Non-Qualified Stock Option (right to buy) 38.86 2017-02-22 4 A 0 65050 0.00 A 2027-02-23 Common Stock 65050 65050 D An equity award of time-based restricted stock pursuant to the Issuer's Long-Term Incentive Plan, which will vest in three equal annual installments commencing on the first anniversary of the date of the grant. Represents the number of shares equivalent of NOV common stock held by Mr. Duff under the National Oilwell Varco, Inc. 401(k) Plan. The information in this report is based on Mr. Duff's account balance as of February 22, 2017. The option, awarded pursuant to the Issuer's Long-Term Incentive Plan, representing a right to purchase a total of 65,050 shares, will become exercisable in three equal annual installments beginning on February 22, 2018, which will be the first anniversary of the date on which the option was granted. By: Brigitte M. Hunt For: Scott K. Duff 2017-02-24