$Ultra Petroleum(UPL)$ 8-K - Current report Filed: 2019-02-19 AccNo: 0001193125-19-043463 Size: 843 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a RegistrantItem 7.01: Regulation FD DisclosureItem 8.01: Other EventsItem 9.01: Financial Statements and Exhibits 网页链接