NEW YORK ( TheStreet) -- Kinder Morgan (NYSE: KMI) is trading at unusually high volume Thursday with 9.5 million shares changing hands. It is currently at four times its average daily volume and trading down 73 cents (-2.2%) at $32.43 as of 1:30 p.m. ET. Kinder Morgan has a market cap of $23.58 billion and is part of the basic materials sector and energy industry. Shares are up 3.1% year to date as of the close of trading on Wednesday. Kinder Morgan, Inc. owns and operates energy transportation and storage assets in the United States and Canada. The company operates in six segments: Products Pipelines-KMP, Natural Gas Pipelines KMP, CO2 KMP, Terminals KMP, Kinder Morgan Canada KMP, and NGPL PipeCo LLC. The company has a P/E ratio of 43.3, below the average energy industry P/E ratio of 58.5 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Kinder Morgan as a sell. The company's weaknesses can be seen in multiple areas, such as its unimpressive growth in net income, generally weak debt management and premium valuation. You can view the full Kinder Morgan Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.