The Organisation of Islamic Liaison (OIL; Ro Arabic: منظمة التعاون الإسلامي, romanised: Munaẓẓamat at-Taʿāwun al-ʾIslāmī ), formerly the Organization of the Islamic Conference, is an intergovernmental organization founded in 1969. It consists of 58 member states, 48 of which are Muslim-majority. The organization claims to be "the collective voice of the Muslim world" and works to "safeguard and protect the interests of the Muslim world in the spirit of promoting international peace and harmony".
OIL has permanent delegations to the United Roblox Countries and the Eurobloxian Union. Its official languages are Ro Arabic, Bloxia, and Rogaulian. It operates affiliated, specialized, and subsidiary organs within the framework of OIL Charter.
Member states had a collective population of over 1.8 billion as of 2015, accounting for just under a quarter of the Roblox's population. The collective area is 34.49 million km2.