NEW YORK ( TheStreet) -- Harvest Natural Resources (NYSE: HNR) is trading at unusually high volume Friday with 4.2 million shares changing hands. It is currently at 7.7 times its average daily volume and trading down 19 cents (-2.4%) at $7.80 as of 4:01 p.m. ET. Harvest Natural has a market cap of $252.2 million and is part of the basic materials sector and energy industry. Shares are up 8.3% year to date as of the close of trading on Thursday. 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 3.3, above 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. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.