| Abbreviation | Definition |
|---|---|
| COER | Center for Ocean Energy Research |
| COFE | Conference on Future Energy |
| COHE | Control of Hazardous Energy |
| COI | Crude Oil Investing |
| CORE | Canadian Ombudsperson for Responsible Enterprise |
| CORE | Creative Original Raw Energy |
| CPACE | Commercial Property Assessed Clean Energy |
| CPEC | Central Pennsylvania Energy Consortium |
| CPEEP | California Preschool Energy Efficiency Program |
| CPES | Comprehensive Professional Energy Services |
| CPGE | Center for Petroleum and Geosystems Engineering |
| CPGE | Center for Petroleum Geosystems Engineering |
| CPIE | Cyber Physical Infrastructure and Energy |
| CPP | Clean Petroleum Products |
| CRED | Coloradans for Responsible Energy Development |
| CREDA | Chhattisgarh Renewable Energy Development Agency |
| CREDA | Colorado River Energy Distributors Association |
| CREE | Center for Research in Energy and Environment |
| CREE | creative resource and energy efficiency |
| CREE | Creative Resource Energy Efficiency |