$核心能源(EFOI)$ 8-K - Current report Filed: 2016-06-21 AccNo: 0000924168-16-000054 Size: 2 MBItem 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 Vote 网页链接