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

Oasis Petroleum Inc. Common Sto (symbol: OAS) was one of the worst losers
of the trading day today (2015-11-27), losing -6.52%. The number of shares
that changed hands was 4,983,624, or about 1 times the average daily volume
in the stock.
The closing price was $11.32, amounting to a market cap of $1,570,000,000,
about -49.62% off the highest price in the last 12 months. The stock has
been trading at a range between $8.04 and $22.47.
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 10.38 times earnings.