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

Oasis Petroleum Inc. (symbol: OAS) was one of the biggest winners of the
trading day today (2015-12-23), gaining 19.85%. The number of shares that
changed hands was 16,545,307, or about 1.6 times the average daily volume
in the stock.
The closing price was $8.09, amounting to a market cap of $1,130,000,000,
about -58.79% off the highest price in the last 12 months. The stock has
been trading at a range between $6.34 and $19.63.
OAS is in the Oil & Gas Production industry, part of the Energy sector. It
first went public in 2010.
Looking at its valuation, the stock is now trading at 7.42 times earnings.