| Cubic Korea Inc (21650) KOSDAQ - KOSDAQ Stock Market | |
| Cue Energy Resources Limited Ordinary Shares (CUE) NZE - New Zealand Stock Exchange | |
| Cue Energy Resources Limited (CUE) ASX - Australian Securities Exchange | |
| Cue Resources Ltd (CUE) CVE - Toronto TSX Ventures Exchange | |
| Cuervo Resources Inc. (FE) CNSX - Canadian Securities Exchange | |
| Cuesta Coal Ltd (CQC) ASX - Australian Securities Exchange | |
| Culane Energy Corp (CLN) CVE - Toronto TSX Ventures Exchange | |
| Cullen Resources Limited (CUL) ASX - Australian Securities Exchange | |
| Cullinan Holdings Ltd. (CUL) JSE - Johannesburg Stock Exchange | |
| Cullinan Holdings Ltd. (CULP) JSE - Johannesburg Stock Exchange | |
| Cumberland Oil & Gas Ltd. (COG) CVE - Toronto TSX Ventures Exchange | |
| Curcas Oil NV (CCZA) ETR - Deutsche Börse XETRA | |
| Curcas Oil NV (CCZA) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Curis Resources Ltd (CUV) TSE - Toronto Stock Exchange | |
| Curlew Lake Resources Inc. (CWQ) CVE - Toronto TSX Ventures Exchange | |