Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link. Two out of the three major indices are trading lower today with the Dow Jones Industrial Average ( ^DJI) trading down 4 points (0.0%) at 15,077 as of Monday, Aug. 19, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 933 issues advancing vs. 2,036 declining with 90 unchanged. The Basic Materials sector currently sits down 0.4% versus the S&P 500, which is down 0.1%. On the negative front, top decliners within the sector include Marathon Oil ( MRO), down 3.4%, ArcelorMittal ( MT), down 2.5%, Canadian Natural Resources ( CNQ), down 2.2%, Enterprise Products Partners ( EPD), down 1.9% and Energy Transfer Equity ( ETE), down 1.7%. TheStreet would like to highlight 5 stocks pushing the sector lower today: 5. Williams Companies ( WMB) is one of the companies pushing the Basic Materials sector lower today. As of noon trading, Williams Companies is down $0.51 (-1.5%) to $34.48 on light volume. Thus far, 1.7 million shares of Williams Companies exchanged hands as compared to its average daily volume of 7.3 million shares. The stock has ranged in price between $34.46-$34.99 after having opened the day at $34.94 as compared to the previous trading day's close of $34.99. The Williams Companies, Inc. operates as an energy infrastructure company. Williams Companies has a market cap of $24.2 billion and is part of the energy industry. Shares are up 6.9% year to date as of the close of trading on Friday. Currently there are 8 analysts that rate Williams Companies a buy, no analysts rate it a sell, and 2 rate it a hold. TheStreet Ratings rates Williams Companies as a buy. The company's strengths can be seen in multiple areas, such as its increase in net income, expanding profit margins, good cash flow from operations and increase in stock price during the past year. We feel these strengths outweigh the fact that the company has had generally high debt management risk by most measures that we evaluated. Get the full Williams Companies 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.