$Niska Gas Storage Partners(NKA)$ 8-K - Current report Filed: 2015-06-18 AccNo: 0001047469-15-005561 Size: 671 KBItem 1.01: Entry into a Material Definitive AgreementItem 5.01: Changes in Control of RegistrantItem 5.07: Submission of Matters to a Vote of Security HoldersItem 8.01: Other EventsItem 9.01: Finan 网页链接