Exhibit 15.4
OUR VESSELS
The table below shows the vessels chartered or owned by us and Transpetro as of December 31, 2025:
| Vessel | Owned / Chatered | Capacity (deadweight tonnage) | |
| Owned/ Chartered by Transpetro | Abdias Nascimento | Owned | 157,055 |
| Andre Rebouças | Owned | 156,520 | |
| Angra dos Reis | Chartered | 104,999 | |
| Anita Garibaldi | Owned | 72,786 | |
| Barbosa Lima Sobrinho | Owned | 5,079 | |
| Carlos Drummond de Andrade | Owned | 114,366 | |
| Castro Alves | Owned | 114,562 | |
| Celso Furtado | Owned | 48,300 | |
| Darcy Ribeiro | Owned | 5,092 | |
| Dragão do Mar | Owned | 157,055 | |
| Fortaleza Knutsen | Chartered | 106,316 | |
| Garrincha | Owned | 114,441 | |
| Gilberto Freyre | Owned | 3,000 | |
| Henrique Dias | Owned | 156,509 | |
| João Cândido | Owned | 156,517 | |
| Jorge Amado | Owned | 3,000 | |
| José Alencar | Owned | 48,573 | |
| José do Patrocínio | Owned | 156,726 | |
| Lucio Costa | Owned | 5,097 | |
| Machado de Assis | Owned | 151,953 | |
| Madre de Deus | Chartered | 104,999 | |
| Marcílio Dias | Owned | 156,548 | |
| Milton Santos | Owned | 157,055 | |
| Olavo Bilac | Owned | 114,562 | |
| Oscar Niemeyer | Owned | 5,079 | |
| Portinari | Owned | 114,435 | |
| Recife Knutsen | Chartered | 104,999 | |
| Rio Grande | Chartered | 105,224 | |
| Rômulo Almeida | Owned | 48,449 | |
| São Luíz | Chartered | 104,999 | |
| São Sebastião | Chartered | 105,165 | |
| Sérgio Buarque de Holanda | Owned | 48,300 | |
| Zumbi dos Palmares | Owned | 156,786 | |
| Subtotal Owned/Chartered by Transpetro | 33 | 3,164,546 | |
| Chartered by us | Aitolos | Chartered | 115,521 |
| Aktea | Chartered | 51,371 | |
| Alessandro Volta | Chartered | 29,191 | |
| Altair | Chartered | 50,583 | |
| Amazon Victory | Chartered | 72,412 | |
| Aquila | Chartered | 319,330 | |
| Arctos | Chartered | 49,999 | |
| Atlantic Pride | Chartered | 50,614 | |
| Brasil 2014 | Chartered | 155,709 | |
| Buena Confianza | Chartered | 8,764 | |
| Buran | Chartered | 18,548 | |
| Charline | Chartered | 50,436 | |
| Clarity | Chartered | 49,999 | |
| Clean Justice | Chartered | 44,998 | |
| Clearocean Melody | Chartered | 49,995 | |
| Clyde | Chartered | 49,999 | |
| Dallas | Chartered | 65,118 | |
| Donoussa | Chartered | 299,999 | |
| Eagle Cambe | Chartered | 155,414 | |
| Eagle Colatina | Chartered | 155,362 | |
| Eagle Crato | Chartered | 152,000 | |
| 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 Energia I | Chartered | 4,200 | |
| Elandra Star | Chartered | 49,999 | |
| Eli Knutsen | Chartered | 154,310 | |
| Elka Leblon | Chartered | 154,846 | |
| Elka Parana | Chartered | 155,010 | |
| Epic Baluan | Chartered | 7,187 | |
| Flumar Brasil | Chartered | 51,188 | |
| Forte De Copacabana | Chartered | 8,834 | |
| Forte De Sao Luiz | Chartered | 8,250 | |
| Forte De Sao Marcos | Chartered | 8,770 | |
| Fraternity | Chartered | 157,667 | |
| Gavi C | Chartered | 37,606 | |
| Gaz Synergy | Chartered | 17,740 | |
| Heather Knutsen | Chartered | 148,643 | |
| Hedda Knutsen | Chartered | 154,348 | |
| Honesty | Chartered | 50,384 | |
| Horizon Armonia | Chartered | 49,999 | |
| Horizon Theano | Chartered | 50,268 | |
| Horizon Theoni | Chartered | 49,999 | |
| Ioannis Zafirakis | Chartered | 49,999 | |
| Isabella M II | Chartered | 49,999 |
| Chartered by us | Jagannath | Chartered | 54,675 |
| Jakarta | Chartered | 65,055 | |
| Kamilla Kosan | Chartered | 11,738 | |
| Lambada Spirit | Chartered | 154,036 | |
| Luigi Galvani | Chartered | 28,543 | |
| Maersk Callao | Chartered | 49,919 | |
| Maersk Katalin | Chartered | 39,708 | |
| Maersk Kiera | Chartered | 39,724 | |
| Maersk Malaga | Chartered | 51,544 | |
| Manta Anadolu | Chartered | 28,447 | |
| Manta Beyoglu | Chartered | 28,585 | |
| Maran Libra | Chartered | 319,431 | |
| Marlin | Chartered | 17,043 | |
| Mersey | Chartered | 49,999 | |
| P. Tokyo | Chartered | 114,014 | |
| Pacific Azur | Chartered | 49,997 | |
| Pacific Jasper | Chartered | 49,998 | |
| Pacific Onyx | Chartered | 49,996 | |
| Pacific Zircon | Chartered | 49,995 | |
| Phoenix Vantage | Chartered | 299,996 | |
| Pine Olia | Chartered | 49,999 | |
| President I | Chartered | 64,999 | |
| Queen Of Doria | Chartered | 46,590 | |
| Rio 2016 | Chartered | 155,709 | |
| San Andres IV | Chartered | 3,557 | |
| Sealoader 2 | Chartered | 3,100 | |
| Shamal | Chartered | 64,834 | |
| Sinndar | Chartered | 54,596 | |
| Sti Jardins | Chartered | 49,990 | |
| Taruca | Chartered | 19,983 | |
| Tweed | Chartered | 49,999 | |
| Vialli | Chartered | 44,999 | |
| Vorias | Chartered | 38,375 | |
| Witham | Chartered | 49,999 | |
| Subtotal Chartered by us | 82 | 6,485,823 | |
| TOTAL | 115 | 9,650,369 | |