| OIL | Oil India Ltd | 印度石油有限公司 |
| OIL | Triton Energy, LTD. | Triton能源有限公司。 |
| OIL | Ordnance Investigation Laboratory | 军械调查实验室 |
| OIL | Ontology Interchange Language | 本体交换语言 |
| OIL | Office of Immigration Litigation (Department of Justice Civil Division) | 移民诉讼办公室（司法部民事司） |
| OIL | Optimized Invocation Layer | 优化的调用层 |
| OIL | Observation, Insight, and Lesson (US Army) | 观察、洞察和教训（美国陆军） |
| OIL | Oklahomans for Independent Living | 俄克拉荷马独立生活 |
| OIL | Outside/ Inside Linebacker | 户外/后卫里 |
| OIL | OMS Interaction Language (GlobIS at ETH ZÜrich) | OMS Interaction Language (GlobIS at ETH ZÜrich) |
| OIL | Open Incident Listing | 打开事件列表 |
| OIL | Ontology Inference Layer | 本体推理层 |
| OIL | Optoelectronic Interconnection Layer | 光电互连层 |
| OIL | Ontology Interchange Language (XML) | 本体交换语言（XML） |
| OIL | Organizzazione Internazionale del Lavoro (Italian) | 拉沃罗国际组织（意大利语） |
| OIL | Organizzazione Italiana Lubrificanti (Italian) | 意大利Organizazione Italiana Lubrificanti（意大利语） |
| OIL | Open Information Locator | 打开信息定位器 |
| OIL | Open Issues List | 打开的问题列表 |