X0306 4 2018-02-20 0 0000107263 WILLIAMS COMPANIES INC WMB 0001557206 Ferazzi Frank J 2800 POST OAK BLVD HOUSTON TX 77056 0 1 0 0 SVP Atlantic-Gulf Common Stock 2018-02-20 4 A 0 12032 0.00 A 13300 D Common Stock 3118 I By Company Plan Restricted Stock Units 0.00 2018-02-20 4 A 0 17883 0.00 A 2021-02-20 2021-02-20 Common Stock 17883 17883 D Employee Options (Right to Buy) 29.09 2018-02-20 4 A 0 12125 0.00 A 2019-02-20 2028-02-20 Common Stock 12125 12125 D Employee Options (Right to Buy) 29.09 2018-02-20 4 A 0 12126 0.00 A 2020-02-20 2028-02-20 Common Stock 12126 12126 D Employee Options (Right to Buy) 29.09 2018-02-20 4 A 0 12126 0.00 A 2021-02-20 2028-02-20 Common Stock 12126 12126 D Vesting is subject to applicable grant agreement and Compensation and Management Development Committee certification that the Company has met the applicable three year performance measures of return on capital employed and total shareholder return, each weighted at 50%. The payout will range from 0 percent to 200 percent of the awarded number of units. Cher S. Lawrence, Attorney-in-Fact for Frank J. Ferazzi 2018-02-22