X0306 4 2018-04-04 0 0000867665 ABRAXAS PETROLEUM CORP AXAS 0001529731 Krog George William Jr 18803 MEISNER DRIVE SAN ANTONIO TX 78258 0 1 0 0 VP Chief Accounting Officer Abraxas Petroleum Common Stock 2018-04-01 4 A 0 23973 0 A 133217 D Abraxas Petroleum Common Stock 2018-03-31 4 A 0 6799 2.20 A 29291 I 401-K Performance-based Restricted Stock Unit 2.19 2018-04-01 4 M 0 23973 0 A Abraxas Petroleum Common Stock 23973 23973 D Employee Stock Option 0.97 2017-03-15 2026-03-15 Abraxas Petroleum Common Stock 123000 123000 D Employee Stock Option 3.16 2016-03-03 2025-03-03 Abraxas Petroleum Common Stock 100000 100000 D Employee Stock Option 3.15 2014-03-11 2024-03-11 Abraxas Petroleum Common Stock 21000 21000 D Employee Stock Option 2.39 2015-03-11 2024-03-11 Abraxas Petroleum Common Stock 20000 20000 D Employee Stock Option 6.05 2010-03-24 2016-03-24 Abraxas Petroleum Common Stock 5000 5000 D Employee Stock Option 3.60 2011-08-28 2017-08-28 Abraxas Petroleum Common Stock 8829 8829 D Employee Stock Option 0.99 2010-03-17 2019-03-17 Abraxas Petroleum Common Stock 10000 10000 D Employee Stock Option 1.75 2010-10-05 2019-10-05 Abraxas Petroleum Common Stock 26775 26775 D Employee Stock Option 4.72 2012-03-12 2021-03-15 Abraxas Petroleum Common Stock 10000 10000 D Employee Stock Option 2.09 2011-03-16 2020-03-16 Abraxas Petroleum Common Stock 12700 12700 D Employee Stock Option 3.74 2013-03-08 2022-03-08 Abraxas Petroleum Common Stock 9500 9500 D 401-K shares acquired as a result of Abraxas Petroleum Corporations safe harbor match for calendar year 2017. Each performance-based restricted stock unit (RSU) represents the right to receive, following vesting, up to 200% of one share of Abraxas Petroleum common stock. The resulting number of shares of Abraxas Petroleum common stock acquired upon vesting of the performance based RSU is contingent upon the achievement of pre-established performance metrics, as approved by the Company's Compensation Committee, over a three year period beginning April 1, 2018 and ending April 1, 2021. Unless earlier forfeited under the terms of the performance-based RSUs, each performance based vest and converts into no more than 200% of one share of Abraxas Petroleum common stock. G. William Krog, Jr. 2018-04-04