$Natural Gas Services (NGS)$ 8-K - Current report Filed: 2016-06-21 AccNo: 0001084991-16-000073 Size: 245 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 5.07: Submission of Matters to a Vot 网页链接