Frontline plc, a shipping company, engages in the seaborne transportation of crude oil and oil products worldwide. It owns and operates oil and product tankers. As of December 31, 2023, the company operated a fleet of 76 vessels. It is also involved in the charter, purchase, and sale of vessels. The company was founded in 1985 and is based in Limassol, Cyprus.

International Seaways, Inc. owns and operates a fleet of oceangoing vessels for the transportation of crude oil and petroleum products in the international flag trade. It operates in two segments: Crude Tankers and Product Carriers. As of December 31, 2023, the company owned a fleet of 73 vessels. It serves independent and state-owned oil companies, oil traders, refinery operators, and international government entities. The company was formerly known as OSG International, Inc. and changed its name to International Seaways, Inc. in October 2016. International Seaways, Inc. was incorporated in 1999 and is headquartered in New York, New York.

Teekay Corporation Ltd. engages in the crude oil and other marine transportation services worldwide. The company owns and operates crude oil and refined product tankers. It also provides ship-to-ship support services; tanker commercial management operation services; and operational and maintenance marine services. As of March 1, 2024, the company operated a fleet of approximately 53 owned and chartered-in vessels. It serves energy and utility companies, oil traders, oil consumers and petroleum product producers, government agencies, and other entities that depend upon marine transportation. The company was formerly known as Teekay Corporation and changed its name to Teekay Corporation Ltd. in October 2024. Teekay Corporation Ltd. was founded in 1973 and is headquartered in Hamilton, Bermuda.

Tsakos Energy Navigation Limited provides seaborne crude oil and petroleum product transportation services worldwide. The company offers marine transportation services for national, major, and other independent oil companies and refiners under long, medium, and short-term charters. It also operates a fleet of double-hull vessels, comprising of conventional tankers, LNG carriers, and suezmax DP2 shuttle tankers. The company was formerly known as MIF Limited and changed its name to Tsakos Energy Navigation Limited in July 2001. The company was incorporated in 1993 and is based in Athens, Greece.

Imperial Petroleum Inc. provides international seaborne transportation services to oil producers, refineries, and commodities traders. It carries refined petroleum products, such as gasoline, diesel, fuel oil, and jet fuel, as well as edible oils and chemicals, crude oils, iron ore, coal and grains, and minor bulks, such as bauxite, phosphate, and fertilizers. As of April 1, 2024, the company owned and operated a fleet of six medium range refined petroleum product tankers; one Aframax tanker; two suezmax tankers; and two handysize drybulk carriers with a total capacity of 791,000 deadweight tons. The company was incorporated in 2021 and is based in Athens, Greece.

Toro Corp., a shipping company, acquires, owns, charters, and operates oceangoing tanker vessels and provides seaborne transportation services for crude oil LPG, and refined petroleum products worldwide. The company operates in three segments: Aframax/LR2 Tanker, Handysize Tanker, and LPG Carrier. As of December 31, 2023, it operated a fleet of one Handysize tanker vessel; one Aframax/LR2 vessel; and four LPG carrier vessels with an aggregate cargo carrying capacity of 0.1 million deadweight ton. Toro Corp. was incorporated in 2022 and is based in Limassol, Cyprus.

Pyxis Tankers Inc. operates as a maritime transportation company with a focus on the tanker and dry-bulk sectors worldwide. It operates through Tanker Vessels and Dry-Bulk Vessels segments. The company's fleet transports refined petroleum products, such as naphtha, gasoline, jet fuel, kerosene, diesel, and fuel oil, as well as other liquid bulk items, including vegetable oils and organic chemicals. As of March 15, 2024, it operated a fleet of three double hull product tankers and two dry-bulk vessels. Pyxis Tankers Inc. was incorporated in 2015 and is based in Maroussi, Greece. Pyxis Tankers Inc. is a subsidiary of Maritime Investors Corp.

Performance Shipping Inc. provides shipping transportation services through its tanker vessels worldwide. As of December 31, 2023, its fleet consisted of seven Aframax tanker vessels with a combined carrying capacity of 735,910 DWT. The company was incorporated in 2010 and is based in Athens, Greece.