3. As of noon trading, Tesoro Corporation ( TSO) is up $1.94 (3.4%) to $58.90 on heavy volume. Thus far, 3.6 million shares of Tesoro Corporation exchanged hands as compared to its average daily volume of 3.8 million shares. The stock has ranged in price between $56.84-$59.47 after having opened the day at $57.01 as compared to the previous trading day's close of $56.96. Tesoro Corporation, together with its subsidiaries, engages in refining and marketing petroleum products in the United States. It operates in two segments, Refining and Retail. Tesoro Corporation has a market cap of $7.6 billion and is part of the basic materials sector. The company has a P/E ratio of 17.9, above the S&P 500 P/E ratio of 17.7. Shares are up 29.3% year to date as of the close of trading on Tuesday. Currently there are 7 analysts that rate Tesoro Corporation a buy, no analysts rate it a sell, and 5 rate it a hold. TheStreet Ratings rates Tesoro Corporation as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, reasonable valuation levels, good cash flow from operations, solid stock price performance and largely solid financial position with reasonable debt levels by most measures. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Tesoro Corporation Ratings Report now. 3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.