NEW YORK ( TheStreet) -- Venoco Incorporated (NYSE: VQ) is trading at unusually high volume Tuesday with 1.9 million shares changing hands. It is currently at four times its average daily volume and trading down 28 cents (-3.3%) at $8.31 as of 3:38 p.m. ET. Venoco has a market cap of $586 million and is part of the basic materials sector and energy industry. Shares are down 51.3% year to date as of the close of trading on Monday. Venoco, Inc., an independent energy company, engages in the acquisition, exploration, exploitation, and development of oil and natural gas properties. Its principal properties are located both onshore and offshore southern California and onshore in California's Sacramento Basin. The company has a P/E ratio of 4.4, below the average energy industry P/E ratio of 41.3 and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Venoco as a hold. The company's strengths can be seen in multiple areas, such as its notable return on equity, expanding profit margins and increase in net income. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, generally poor debt management and premium valuation. You can view the full Venoco 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.