$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 (2015-08-31), gaining 11.71%. The number of shares that
changed hands was 14,834,446, or about 1.6 times the average daily volume
in the stock.
The closing price was $11.16, amounting to a market cap of $1,550,000,000,
about -77.28% off the highest price in the last 12 months. The stock has
been trading at a range between $8.04 and $49.13.
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 5.5 times earnings.