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

Denbury Resources Inc. Common S (symbol: DNR) was one of the worst losers
of the trading day today (2015-12-25), losing -6.88%. The number of shares
that changed hands was 8,380,462, or about 1 times the average daily volume
in the stock.
The closing price was $2.3, amounting to a market cap of $805,120,000,
about -75.87% off the highest price in the last 12 months. The stock has
been trading at a range between $1.72 and $9.53.
DNR is in the Oil & Gas Production industry, part of the Energy sector.