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. All three major indices are trading down today with the Dow Jones Industrial Average ( ^DJI) trading down 58 points (-0.4%) at 15,461 as of Wednesday, Aug. 7, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 785 issues advancing vs. 2,161 declining with 94 unchanged. The Basic Materials sector currently sits down 0.8% versus the S&P 500, which is down 0.4%. On the negative front, top decliners within the sector include Axiall ( AXLL), down 18.8%, Marathon Oil ( MRO), down 4.6%, Range Resources Corporation ( RRC), down 2.9%, Chesapeake Energy ( CHK), down 2.3% and Cabot Oil & Gas Corporation ( COG), down 2.2%. Top gainers within the sector include Energy Transfer Equity ( ETE), up 2.6%, EOG Resources ( EOG), up 2.2%, Tenaris ( TS), up 1.7%, Devon Energy ( DVN), up 1.2% and Petroleo Brasileiro SA Petrobras ( PBR), up 0.5%. TheStreet would like to highlight 5 stocks pushing the sector lower today: 5. Imperial Oil ( IMO) is one of the companies pushing the Basic Materials sector lower today. As of noon trading, Imperial Oil is down $0.29 (-0.7%) to $40.53 on light volume. Thus far, 44,129 shares of Imperial Oil exchanged hands as compared to its average daily volume of 230,600 shares. The stock has ranged in price between $40.35-$40.82 after having opened the day at $40.46 as compared to the previous trading day's close of $40.82. Imperial Oil Limited engages in the exploration, production, and sale of crude oil and natural gas in Canada. The company operates through three segments: Upstream, Downstream, and Chemical. Imperial Oil has a market cap of $34.6 billion and is part of the energy industry. Shares are down 5.1% year to date as of the close of trading on Tuesday. Currently there is 1 analyst that rates Imperial Oil a buy, 1 analyst rates it a sell, and 3 rate it a hold. TheStreet Ratings rates Imperial Oil as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and reasonable valuation levels. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Imperial Oil 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.