$VNRCP is one of biggest losers #stocks today. read more:

Vanguard Natural Resources LLC (symbol: VNRCP) was one of the worst losers
of the trading day today (2015-12-28), losing -13.11%. The number of shares
that changed hands was 63,683, or about 1 times the average daily volume in
the stock.
The closing price was $9.21, amounting to a market cap of $801,430,000,
about -62.01% off the highest price in the last 12 months. The stock has
been trading at a range between $5.39 and $24.24.
VNRCP is in the Oil & Gas Production industry, part of the Energy sector.