NEW YORK ( TheStreet) -- Shares of Harvest Natural Resources (NYSE: HNR) were gapping up Tuesday morning with an open price 13.4% higher than Monday's closing price. The stock closed at $6.26 Monday and opened today's trading at $7.10. The average volume for Harvest Natural has been 540,500 shares per day over the past 30 days. Harvest Natural has a market cap of $252.2 million and is part of the basic materials sector and energy industry. Shares are down 15.2% year to date as of the close of trading on Monday. Harvest Natural Resources, Inc., an independent energy company, engages in the acquisition, exploration, development, production, and disposition of oil and natural gas properties. The company has a P/E ratio of 2.7, below the average energy industry P/E ratio of 3.2 and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Harvest Natural as a hold. The company's strengths can be seen in multiple areas, such as its solid stock price performance and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, disappointing return on equity and weak operating cash flow. You can view the full Harvest Natural Ratings Report. Get more investment ideas from our investment research center. Interested in other stocks that are gapping up? Get free SMS text alerts sent to you when the action happens by texting UP to 95370 or select from multiple alert options.