$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 (2016-03-29), losing -5.78%. The number of shares
that changed hands was 12,579,750, or about 1 times the average daily
volume in the stock.
The closing price was $2.12, amounting to a market cap of $733,260,000,
about -77.75% off the highest price in the last 12 months. The stock has
been trading at a range between $0.86 and $9.53.
DNR is in the Oil & Gas Production industry, part of the Energy sector.