HOUSTON, TX & OVERLAND PARK, KS – OCTOBER 13, 2008 NGP Midstream & Resources, L.P. (“M&R”) and PTP Holdings, LLC (“PTP”) announce today the formation of MLP Co-Investment Opportunity Fund, L.P. MLP Co-Investment Opportunity Fund, L.P. (the “Fund”) will focus on making equity investments in publicly traded securities issued by Master Limited Partnerships or pre-IPO entities that are expected to…