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.

Scorpio Tankers Inc., together with its subsidiaries, engages in the seaborne transportation of crude oil and refined petroleum products in the shipping markets worldwide. As of March 21, 2024, its fleet consisted of 110 owned and leases financed tanker, including 39 LR2, 57 MR, and 14 Handymax with a weighted average age of approximately 8.1 years. Scorpio Tankers Inc. was incorporated in 2009 and is headquartered in Monaco.

Okeanis Eco Tankers Corp., a shipping company, owns and operates tanker vessels worldwide. It operates a fleet of 14 tanker vessels comprising six modern Suezmax tankers and eight modern VLCC tankers focusing on the transportation of crude oil. The company was incorporated in 2018 and is based in Neo Faliro, Greece.

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.

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.

Castor Maritime Inc. provides shipping services worldwide. The company operates through Dry Bulk Vessels and Containerships segments. It offers seaborne transportation services for dry bulk cargo; and commodities, such as iron ore, coal, soybeans, etc. As of December 31, 2023, the company owned and operated a fleet of 17 vessels primarily consisting of one Capesize, five Kamsarmax, two Handysize tanker vessels, and nine Panamax dry bulk vessels, as well as two 2,700 TEU containership vessels. Castor Maritime Inc. was incorporated in 2017 and is based in Limassol, Cyprus.

Top Ships Inc. owns and operates tanker vessels worldwide. The company's tanker vessels transport crude oil, petroleum products, and bulk liquid chemicals. As of December 31, 2023, it had a fleet with a total capacity of 1,435,000 deadweight tonnes (dwt) consisting of one 50,000 dwt product/chemical tanker, five 157,000 dwt Suezmax tankers, two 300,000 dwt very large crude carriers, and two 50,000 dwt product tankers. The company was formerly known as Top Tankers Inc. and changed its name to Top Ships Inc. in December 2007. Top Ships Inc. was incorporated in 2000 and is based in Marousi, Greece.