$WLL is one of biggest winner #stocks today. read more:

Whiting Petroleum Corporation (symbol: WLL) was one of the biggest winners
of the trading day today (2016-03-02), gaining 19.54%. The number of shares
that changed hands was 41,472,970, or about 2.1 times the average daily
volume in the stock.
The closing price was $5.2, amounting to a market cap of $1,060,000,000,
about -87.49% off the highest price in the last 12 months. The stock has
been trading at a range between $3.35 and $41.57.
WLL is in the Oil & Gas Production industry, part of the Energy sector. It
first went public in 2003.