$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 (2015-09-08), losing -6.18%. The number of shares
that changed hands was 14,849,235, or about 1 times the average daily
volume in the stock.
The closing price was $3.34, amounting to a market cap of $1,170,000,000,
about -79.94% off the highest price in the last 12 months. The stock has
been trading at a range between $3.04 and $16.65.
DNR is in the Oil & Gas Production industry, part of the Energy sector.