Upstream MLP Vanguard Natural Resources LLC, Houston, has priced its IPO of 5.25 million units at $19 each on NYSE Arca as VNR, for a total raise of up to $99.8 million. This is the lower end of the expected price range which was $19 to $21. The underwriters may purchase up to 750,000 units as overallotment, which will bring the total raise to $114 million.