$Vanguard Natural Resources(VNR)$ 8-K/A [Amend] - Current report Filed: 2016-06-30 AccNo: 0001384072-16-000164 Size: 37 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.04: Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementIte 网页链接