NEW YORK ( TheStreet) -- Carrizo Oil & Gas (Nasdaq: CRZO) is trading at unusually high volume Wednesday with 2.4 million shares changing hands. It is currently at four times its average daily volume and trading up $1.98 (+6.4%) at $32.77 as of four p.m. ET. Carrizo Oil & Gas has a market cap of $1.2 billion and is part of the basic materials sector and energy industry. Shares are down 10.7% year to date as of the close of trading on Tuesday. Carrizo Oil & Gas, Inc., together with its subsidiaries, engages in the exploration, development, production, and transportation of natural gas and oil primarily in the United States. TheStreet Ratings rates Carrizo Oil & Gas as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, solid stock price performance and compelling growth in net income. However, as a counter to these strengths, we find that the company has not been very careful in the management of its balance sheet. You can view the full Carrizo Oil & Gas 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 rising on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVUP to 95370 or select from multiple alert options.