Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model. NEW YORK ( TheStreet) -- The ex-dividend date for Murphy Oil Corporation (NYSE: MUR) is tomorrow, May 15, 2013. Owners of shares as of market close today will be eligible for a dividend of 31 cents per share. At a price of $63.36 as of 9:30 a.m. ET, the dividend yield is 2%. The average volume for Murphy Oil has been 1.5 million shares per day over the past 30 days. Murphy Oil has a market cap of $11.98 billion and is part of the basic materials sector and energy industry. Shares are up 5.4% year to date as of the close of trading on Monday. Murphy Oil Corporation engages in the exploration and production of oil and gas properties worldwide. It is also involved in oil and gas refining and marketing activities. The company explores for and produces crude oil, natural gas, and natural gas liquids. The company has a P/E ratio of 13.7, below the S&P 500 P/E ratio of 17.7.