NEW YORK ( TheStreet) -- Willbros Group (NYSE: WG) is trading at unusually high volume Tuesday with 1.2 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down 52 cents (-5.7%) at $8.57 as of 1:57 p.m. ET. Willbros Group has a market cap of $446.5 million and is part of the basic materials sector and energy industry. Shares are down 7.4% year to date as of the close of trading on Monday. Willbros Group, Inc. provides engineering, procurement, and construction services to the oil and gas, refinery, petrochemical, and power industries primarily in the United States, Canada, and Oman. It operates through two segments: Upstream Oil and Gas, and Downstream Oil and Gas. TheStreet Ratings rates Willbros Group as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, compelling growth in net income and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including weak operating cash flow, a generally disappointing performance in the stock itself and poor profit margins. You can view the full Willbros Group 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.