| MARPS | Marine Petroleum Trust |
| SMLP | Summit Midstream Partners, LP |
| EURN | Euronav NV |
| DLNG | Dynagas LNG Partners LP |
| FRO | Frontline |
| TNK | Teekay Tankers |
| DHT | DHT |
| HESM | Hess Midstream LP |
| OSG | Overseas Ship Group |
| TNP | Tsakos Energy Navigation |
| STNG | Scorpio Tankers |
| IMPP | Imperial Petroleum |