Bulgarian Petroleum and Gas Association was established in 1999 by the major companies active in the Petroleum and Gas industry in Bulgaria: "Petrol" AD, "Shell Bulgaria" EAD, "Overgas INC" AD, "Shell Gas Bulgaria" AD, "Toplivo" AD. Nowadays members of the Association are also "OMV Bulgaria" EOOD, "Eco Bulgaria EOOD", "Prista Oil", Bulmarket DM OOD, Vitogaz Bulgaria EAD, Gastrade AD, Lukoil Bulgaria EOOD, Kalvacha Gas AD, Naftex Petrol EOOD, Rompetrol Bulgaria AD and Insa Oil OOD.