Exhibit 15.4
Our Vessels
The table
below shows the vessels chartered or owned by us and Transpetro as of December 31, 2020:
| Vessel | Owned / Chartered | Capacity (deadweight tonnage) | |
| Owned / Chartered by Transpetro | Abdias Nascimento | Owned | 157,055 |
| Andre Rebouças | Owned | 156,523 | |
| Angra dos Reis | Chartered | 105,165 | |
| Anita Garibaldi | Owned | 72,786 | |
| Barbosa Lima Sobrinho | Owned | 5,093 | |
| Carlos Drummond de Andrade | Owned | 114,366 | |
| Castro Alves | Owned | 114,562 | |
| Celso Furtado | Owned | 48,502 | |
| Dan Cisne | Chartered | 59,336 | |
| Dan Sabiá | Chartered | 59,317 | |
| Darcy Ribeiro | Owned | 5,097 | |
| Dragão do Mar | Owned | 156,502 | |
| Fortaleza Knutsen | Chartered | 106,316 | |
| Garrincha | Owned | 114,441 | |
| Gilberto Freyre | Owned | 2,573 | |
| Henrique Dias | Owned | 156,505 | |
| João Cândido | Owned | 156,980 | |
| Jorge Amado | Owned | 2,537 | |
| José Alencar | Owned | 48,573 | |
| José do Patrocínio | Owned | 156,726 | |
| Lindóia BR | Owned | 44,582 | |
| Lucio Costa | Owned | 5,097 | |
| Machado de Assis | Owned | 156,829 | |
| Madre de Deus | Chartered | 105,283 | |
| Marcílio Dias | Owned | 156,541 | |
| Marta | Owned | 17,812 | |
| Milton Santos | Owned | 156,629 | |
| Nara | Owned | 17,762 | |
| Navion Stavanger | Chartered | 148,729 | |
| Nilza | Owned | 17,754 | |
| Olavo Bilac | Owned | 114,700 | |
| Oscar Niemeyer | Owned | 5,079 | |
| Portinari | Owned | 114,435 | |
| Recife Knutsen | Chartered | 105,560 | |
| Rio Grande | Chartered | 105,224 | |
| Rômulo Almeida | Owned | 48,449 | |
| São Luís | Chartered | 105,212 | |
| São Sebastião | Chartered | 105,190 | |
| Sérgio Buarque de Holanda | Owned | 48,573 | |
| Sestrea | Chartered | 162,756 | |
| Storviken | Chartered | 152,013 | |
| Zumbi dos Palmares | Owned | 156,492 |
| Subtotal Owned / Chartered by Transpetro | 42 | 3,849,656 | |
| Chartered by Us | Afrodite | Chartered | 53,082 |
| Ajax | Chartered | 53,095 | |
| Alessandro Volta | Chartered | 29,300 | |
| Alexandros II | Chartered | 51,257 | |
| Alhena | Chartered | 52,420 | |
| Aliakmon | Chartered | 46,792 | |
| Alpine Amalia | Chartered | 105,304 | |
| Altair | Chartered | 50,583 | |
| Amazon Victory | Chartered | 72,412 | |
| Amazon Virtue | Chartered | 72,412 | |
| Amelia Pacific | Chartered | 45,811 | |
| Anavatos II | Chartered | 115,459 | |
| Anfa | Chartered | 47,975 | |
| Anikitos | Chartered | 50,082 | |
| Aragona | Chartered | 319,319 | |
| Aris | Chartered | 53,106 | |
| Aris II | Chartered | 51,218 | |
| Aristotelis II | Chartered | 51,225 | |
| Assos | Chartered | 47,872 | |
| Avax | Chartered | 47,834 | |
| Avon | Chartered | 49,999 | |
| Ayrton II | Chartered | 51,260 | |
| Brasil 2014 | Chartered | 155,709 | |
| Bro Developer | Chartered | 14,737 | |
| Brunswick | Chartered | 45,902 | |
| Buddha | Chartered | 46,048 | |
| BW Prince | Chartered | 54,368 | |
| BW Princess | Chartered | 53,500 | |
| Clyde | Chartered | 49,999 | |
| Cobra | Chartered | 54,501 | |
| Crude Centurion | Chartered | 112,871 | |
| DHT Colt | Chartered | 319,713 | |
| DHT Stallion | Chartered | 319,713 | |
| Eagle Paraiba | Chartered | 105,153 | |
| Eagle Paraiso | Chartered | 153,264 | |
| Eagle Parana | Chartered | 105,048 | |
| Eagle Passos | Chartered | 152,000 | |
| Eagle Paulinia | Chartered | 153,352 | |
| Eagle Petrolina | Chartered | 153,226 | |
| Eco Nical | Chartered | 6,407 | |
| Elandra Maple | Chartered | 49,999 | |
| Elektra | Chartered | 52,422 | |
| Elka Leblon | Chartered | 154,846 | |
| Elka Parana | Chartered | 155,010 | |
| Endless Summer | Chartered | 49,999 | |
| Epic Baluan | Chartered | 7,187 | |
| Epic Boracay | Chartered | 6,519 | |
| Epic Borinquen | Chartered | 7,183 | |
| Epic St. George | Chartered | 5,350 | |
| Epic St. Thomas | Chartered | 5,011 | |
| Evros | Chartered | 47,120 | |
| Falcon Iris | Chartered | 50,927 | |
| Falcon Maryam | Chartered | 46,121 | |
| Falcon Nostos | Chartered | 51,371 | |
| Falcon Sextant | Chartered | 50,994 | |
| Flumar Brasil | Chartered | 51,188 | |
| Forte de Copacabana | Chartered | 8,843 | |
| Four Wind | Chartered | 115,727 | |
| Fulmar | Chartered | 115,605 | |
| Grand | Chartered | 50,129 | |
| Horizon Aphrodite | Chartered | 49,996 | |
| Horizon Armonia | Chartered | 50,326 | |
| Horizon Ekavi | Chartered | 51,099 | |
| Horizon Electra | Chartered | 51,069 | |
| Iridescent | Chartered | 112,871 | |
| Iris Glory | Chartered | 54,707 |
| Izumo Princess | Chartered | 105,374 | |
| Luigi Lagrange | Chartered | 29,191 | |
| Maersk Kalea | Chartered | 38,850 | |
| Maersk Mississippi | Chartered | 47,990 | |
| Mambo | Chartered | 45,967 | |
| Marlin | Chartered | 17,043 | |
| Motivator | Chartered | 54,901 | |
| Nave Synergy | Chartered | 309,741 | |
| Ocean Spirit | Chartered | 49,995 | |
| Odori | Chartered | 45,897 | |
| Pacific Onyx | Chartered | 49,996 | |
| Pacific Trader | Chartered | 16,934 | |
| Pacific Zircon | Chartered | 49,995 | |
| Picacho | Chartered | 4,569 | |
| Ras Maersk | Chartered | 34,999 | |
| Rio 2016 | Chartered | 155,709 | |
| Robert Maersk | Chartered | 34,801 | |
| Romoe Maersk | Chartered | 34,806 | |
| Sallie Knutsen | Chartered | 153,617 | |
| Samba | Chartered | 19,117 | |
| San Andres IV | Chartered | 3,557 | |
| Simone | Chartered | 323,182 | |
| Saltram | Chartered | 54,627 | |
| Santos | Chartered | 6,420 | |
| St James | Chartered | 48,005 | |
| Stena Conqueror | Chartered | 47,323 | |
| Stena Conquest | Chartered | 47,136 | |
| Stena Perros | Chartered | 65,086 | |
| Stena Premium | Chartered | 65,055 | |
| Stena Progress | Chartered | 65,125 | |
| Zouzou | Chartered | 50,651 | |
| Subtotal Chartered by Us | 89 | 6,726,163 | |
| TOTAL | 131 | 10,575,819 | |