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 up today with the Dow Jones Industrial Average ( ^DJI) trading up 59 points (0.3%) at 17,921 as of Thursday, Feb. 12, 2015, 11:55 AM ET. The NYSE advances/declines ratio sits at 2,310 issues advancing vs. 653 declining with 162 unchanged.

The Basic Materials sector currently sits up 1.7% versus the S&P 500, which is up 0.6%. Top gainers within the sector include International Flavors & Fragrances ( IFF), up 6.8%, Concho Resources ( CXO), up 5.2%, Continental Resources ( CLR), up 4.8%, ArcelorMittal ( MT), up 4.6% and Petroleo Brasileiro SA Petrobras ( PBR), up 4.3%.

TheStreet would like to highlight 3 stocks pushing the sector lower today:

3. Gold Fields ( GFI) is one of the companies pushing the Basic Materials sector lower today. As of noon trading, Gold Fields is down $0.38 (-7.0%) to $5.08 on average volume. Thus far, 3.3 million shares of Gold Fields exchanged hands as compared to its average daily volume of 6.6 million shares. The stock has ranged in price between $5.08-$5.25 after having opened the day at $5.15 as compared to the previous trading day's close of $5.47.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Gold Fields Limited is engaged in the acquisition, exploration, development, and production of gold properties. It also explores for copper. The company holds interests in eight operating mines in Australia, Ghana, Peru, and South Africa. Gold Fields has a market cap of $4.2 billion and is part of the metals & mining industry. Shares are up 20.8% year-to-date as of the close of trading on Wednesday. Currently there is 1 analyst that rates Gold Fields a buy, 1 analyst rates it a sell, and 4 rate it a hold.

TheStreet Ratings rates Gold Fields as a sell. Among the areas we feel are negative, one of the most important has been an overall disappointing return on equity. Get the full Gold Fields 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.

2. As of noon trading, Oceaneering International ( OII) is down $3.90 (-7.2%) to $50.56 on heavy volume. Thus far, 3.0 million shares of Oceaneering International exchanged hands as compared to its average daily volume of 1.5 million shares. The stock has ranged in price between $49.71-$52.00 after having opened the day at $52.00 as compared to the previous trading day's close of $54.46.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Oceaneering International, Inc., together with its subsidiaries, provides engineered services and products primarily to the offshore oil and gas industry worldwide. Oceaneering International has a market cap of $5.8 billion and is part of the energy industry. Shares are down 7.4% year-to-date as of the close of trading on Wednesday. Currently there are 5 analysts that rate Oceaneering International a buy, no analysts rate it a sell, and 6 rate it a hold.

TheStreet Ratings rates Oceaneering International as a hold. 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 impressive record of earnings per share growth. However, as a counter to these strengths, we also find weaknesses including weak operating cash flow, a generally disappointing performance in the stock itself and poor profit margins. Get the full Oceaneering International 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.

1. As of noon trading, Tesoro ( TSO) is down $5.78 (-6.6%) to $81.51 on heavy volume. Thus far, 3.6 million shares of Tesoro exchanged hands as compared to its average daily volume of 3.3 million shares. The stock has ranged in price between $81.10-$83.96 after having opened the day at $83.73 as compared to the previous trading day's close of $87.29.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Tesoro Corporation, together with its subsidiaries, is engaged in refining and marketing petroleum products in the United States. It operates in two segments, Refining and Retail. Tesoro has a market cap of $11.1 billion and is part of the energy industry. Shares are up 17.4% year-to-date as of the close of trading on Wednesday. Currently there are 8 analysts that rate Tesoro a buy, no analysts rate it a sell, and 4 rate it a hold.

TheStreet Ratings rates Tesoro as a buy. The company's strengths can be seen in multiple areas, such as its solid stock price performance, compelling growth in net income, attractive valuation levels, largely solid financial position with reasonable debt levels by most measures and notable return on equity. We feel these strengths outweigh the fact that the company shows weak operating cash flow. Get the full Tesoro 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.

If you are interested in one of these 3 stocks, ETFs may be of interest. Investors who are bullish on the basic materials sector could consider Materials Select Sector SPDR ( XLB) while those bearish on the basic materials sector could consider ProShares Short Basic Materials Fd ( SBM).

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