Azerbaijan International Operating Company is a consortium of currently 10 petroleum companies that have signed extraction contracts with Azerbaijan. These companies include:
The AIOC made significant investment contributing to the construction of the South Caucasus Pipeline, the Baku-Tbilisi-Ceyhan Pipeline, and are currently discussing construction of a Trans-Caspian Oil Pipeline between Kazakhstan and Azerbaijan. Extraction of oil from the Azeri-Chirag-Guneshli fields and natural gas from Shah Deniz has been possible through foreign direct investment in this consortium.