The network is open to any Civil Society Organization (CSO) that is able to demonstrate commitment to CSCO objectives and has a mandate that is relevant to the oil and gas sub-sector or to affected communities. Currently, CSCO has a strong membership comprised of grassroots, national and international civil society organizations. The CSCO Memorandum of Understanding (MoU) is the key document guiding membership and other matters on how CSCO operates. Currently the coalition has sixty three (63) member organizations.