| bbbl | billion barrels |
| bbbl/d | billion barrels per day |
| bbl/d | barrels per day |
| BCF | billion cubic feet |
| EIA | Energy Information Administration |
| EOR | enhanced oil recovery |
| IAEA | International Atomic Energy Agency |
| IEA | International Energy Agency |
| IGCC | Iran Gas Commercial Company |
| IGDC | Iran Gas Distribution Company |
| IGEDC | Iran Gas Engineering and Development Company |
| IGSC | Iran Gas Storage Company |
| IGTC | Iran Gas Transmission Company |
| IOC | international oil company |
| IPCC | Iran Petrochemical Commercial Company |
| JPOA | Joint Plan of Action |
| kbbl/d | thousand barrels per day |
| LNG | liquefied natural gas |
| LPG | liquefied petroleum gas |
| mbbl/d | million barrels per day |
| NIGC | National Iranian Gas Company |
| NIGEC | National Iranian Gas Exports Company |
| NIOC | National Iranian Oil Company |
| NIOPRDC | National Iranian Oil Products Refining and Distribution Company |
| NIORDC | National Iranian Oil Refining and Distribution Company |
| NISOC | National Iranian South Oil Company |
| NPC | National Petrochemical Company |
| PSA | production-sharing agreement |
| Tavanir | Iran Power Generation Transmission & Distribution Co. |
| TCF | trillion cubic feet |
| TCM | trillion cubic metres |
| TREC | Tehran Regional Electricity Co. |
| UNSC | United Nations Security Council |
Chronicle of the Middle East and North Africa