$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 (2016-09-28), gaining 13.55%. The number of shares
that changed hands was 54,213,473, or about 2.2 times the average daily
volume in the stock.
The closing price was $8.21, amounting to a market cap of $2,260,000,000,
about -63.99% off the highest price in the last 12 months. The stock has
been trading at a range between $3.35 and $22.8.
WLL is in the Oil & Gas Production industry, part of the Energy sector. It
first went public in 2003.