NEW YORK ( TheStreet) -- Shares of Eagle Rock Energy Partners (Nasdaq: EROC) were gapping up Wednesday morning with an open price 12.7% higher than Tuesday's closing price. The stock closed at $10.23 Tuesday and opened today's trading at $11.53. The average volume for Eagle Rock Energy has been 331,100 shares per day over the past 30 days. Eagle Rock Energy has a market cap of $873.8 million and is part of the basic materials sector and energy industry. Shares are up 16% year to date as of the close of trading on Tuesday. Eagle Rock Energy Partners, L.P., together with its subsidiaries, engages in gathering, compressing, treating, processing, transporting, and selling natural gas, as well as in fractionating and transporting natural gas liquids (NGL). TheStreet Ratings rates Eagle Rock Energy as a hold. The company's strengths can be seen in multiple areas, such as its solid stock price performance, impressive record of earnings per share growth and revenue growth. 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 Eagle Rock Energy 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.