HOUSTON, Aug. 13, 2012 (GLOBE NEWSWIRE) - Eagle Rock Energy Partners, L.P. (the "Partnership" or "Eagle Rock") (Nasdaq:EROC) announced today that it has commenced, subject to market conditions, an underwritten public offering of 8,000,000 of its common units representing limited partner interests. The Partnership also intends to grant the underwriters a 30-day option to purchase […]