4. As of noon trading, Williams Partners ( WPZ) is down $0.34 (-0.7%) to $51.69 on average volume. Thus far, 380,615 shares of Williams Partners exchanged hands as compared to its average daily volume of 877,600 shares. The stock has ranged in price between $51.65-$52.25 after having opened the day at $51.94 as compared to the previous trading day's close of $52.03. Williams Partners L.P., an energy infrastructure company, focuses on connecting North America's hydrocarbon resource plays to growing markets for natural gas and natural gas liquids (NGL). It operates in two segments, Gas Pipeline and Midstream Gas & Liquids. Williams Partners has a market cap of $21.4 billion and is part of the basic materials sector. The company has a P/E ratio of 33.4, above the S&P 500 P/E ratio of 17.7. Shares are up 6.0% year to date as of the close of trading on Monday. Currently there are 7 analysts that rate Williams Partners a buy, no analysts rate it a sell, and 5 rate it a hold. TheStreet Ratings rates Williams Partners as a buy. The company's strengths can be seen in multiple areas, such as its expanding profit margins, reasonable valuation levels and increase in stock price during the past year. We feel these strengths outweigh the fact that the company has had somewhat weak growth in earnings per share. Get the full Williams Partners Ratings Report now. STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.