$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 (2016-01-06), losing -14.93%. The number of shares
that changed hands was 12,999,860, or about 1 times the average daily
volume in the stock.
The closing price was $1.71, amounting to a market cap of $598,590,000,
about -82.06% off the highest price in the last 12 months. The stock has
been trading at a range between $1.68 and $9.53.
DNR is in the Oil & Gas Production industry, part of the Energy sector.