The operation of refueling ships and small and large vessels at sea is called bunkering. Today, bunkering itself has become an industry that, in addition to delivering fuel, also provides other extensive services to ships, vessels and their crews. Bunkering can be done in two ways: refueling at sea using special vessels or mooring the ship at refueling piers; although both methods are used to refuel ships, the second method, i.e. mooring the ship at refueling piers and ports, is considered the common method of bunkering, and along with it, bunkering service providers also use the first method.
What is important for a ship or vessel is the fueling process at the lowest possible cost and with the best quality, therefore, the price of fuel, the amount of deviation from the main route to reach the refueling pier, the speed of operation, etc. are important and decisive components in the selection of fueling terminals. Considering that about 70 percent of world trade is carried out through maritime transport, the quality, price, safety and ease of access to motor fuel for ships passing through the waters are very important issues, so we have devoted all our attention and effort to achieving this and, by having numerous storage tanks and bunkers in the port areas of the south of the country, we are ready to provide services to ships passing through the Persian Gulf region. OASTA, with its fuel barges, provides marine fuel (bunkering) to ships in the northern and southern waters of the country; At the same time, it is responsible for supplying the items needed by ships, including fresh water, food, receiving and processing waste materials, and also for the sanitary disposal of ship waste; Other services provided in this sector include fuel swap and transit and export of petroleum products. The bunkering services provided by this company generally include:
Fuel Supply
Our company provides high-quality fuels for ships and marine fleets through an extensive network of fuel suppliers. These fuels include fuel oil, marine diesel and low-sulfur fuels that comply with international standards.
- Intermediate Fuel Oil (IFO 380 )
- Intermediate Fuel Oil ( IFO 180 )
- Marine Gas Oil (MGO)
- Marine Diesel Oil (MDO)
Fuel Distribution
Using modern infrastructure and advanced equipment, we distribute fuel to various ports and strategic maritime locations; this distribution is carried out quickly and reliably so that ship operations continue without interruption.
Consulting Services
Our company helps improve productivity and reduce operating costs of customers by providing consulting services in the field of selecting and using appropriate fuels; we offer the best bunkering solutions by analyzing the needs and conditions of each ship.
Logistics Management
One of the factors for success in bunkering is optimal logistics management; Our company, by utilizing advanced technologies and a specialized team, improves logistics processes and reduces ship waiting times, and provides customers with quality and efficient services; Our goal in the company is to provide quality and sustainable bunkering services; By utilizing the experience and expertise of our team, we are always striving to meet the needs of our customers and take steps towards sustainable growth and development.
Bunkering ancillary services
In addition to marine fueling, our company also provides ancillary services to ships berthed at fueling ports. These ancillary services include the following:
- Supply of provisions
- Supply of drinking water
- Ship crew replacement services
- Technical support services
- Ship technical inspection services
- Provision of spare parts required by ships
- Medical services
- Supply of oil and lubricants for motor ships
- Safety equipment for ship crew
- Collection of waste and garbage from ships


















