1. As of noon trading, National Oilwell Varco ( NOV) is down $1.49 (-2.2%) to $65.72 on heavy volume Thus far, 4.6 million shares of National Oilwell Varco exchanged hands as compared to its average daily volume of 4.3 million shares. The stock has ranged in price between $65.10-$66.12 after having opened the day at $65.31 as compared to the previous trading day's close of $67.21. National Oilwell Varco, Inc. provides equipment and components for oil and gas drilling and production; oilfield services; and supply chain integration services to the upstream oil and gas industry worldwide. National Oilwell Varco has a market cap of $28.7 billion and is part of the basic materials sector. The company has a P/E ratio of 11.5, below the S&P 500 P/E ratio of 17.7. Shares are down 1.7% year to date as of the close of trading on Thursday. TheStreet Ratings rates National Oilwell Varco as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, impressive record of earnings per share growth, attractive valuation levels and good cash flow from operations. We feel these strengths outweigh the fact that the company shows low profit margins. Get the full National Oilwell Varco Ratings Report now. Exclusive Offer: Jim Cramer's 'go-to' small/mid-cap guru Bryan Ashenberg only buys stocks he thinks could return 50-100%. See his top picks for 14-days FREE. If you are interested in one of these 3 stocks, ETFs may be of interest. Investors who are bullish on the energy industry could consider Energy Select Sector SPDR ( XLE) while those bearish on the energy industry could consider Proshares Short Oil & Gas ( DDG). A reminder about TheStreet Ratings group: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model.