GasLog Partners LP acquires, owns, and operates liquefied natural gas (LNG) carriers provides LNG transportation services worldwide. The company was incorporated in 2014 and is based in Piraeus, Greece. GasLog Partners LP operates as a subsidiary of GasLog Ltd.

Capital Clean Energy Carriers Corp., a shipping company, provides marine transportation services in Greece. The company's vessels provide a range of cargoes, including liquefied natural gas, containerized goods, and cargo under short-term voyage charters, and medium to long-term time charters. It owns vessels, including Neo-Panamax container vessels, Panamax container vessels, cape-size bulk carrier, and LNG carriers. In addition, the company produces and distributes oil and natural gas, including biofuels, motor oil, lubricants, petrol, crudes, liquefied natural gas, marine fuels, natural gas liquids, and petrochemicals. It serves as the general partner of the company. The company was formerly known as Capital Product Partners L.P. and changed its name to Capital Clean Energy Carriers Corp. in August 2024. Capital Clean Energy Carriers Corp. was incorporated in 2007 and is headquartered in Piraeus, Greece. Capital Clean Energy Carriers Corp. operates as a subsidiary of Capital Maritime & Trading Corp.

Navios Maritime Partners L.P. owns and operates dry cargo vessels in Asia, Europe, North America, and Australia. The company offers seaborne transportation services for a range of liquid and dry cargo commodities, including crude oil, refined petroleum, chemicals, iron ore, coal, grain, fertilizer, and containers, as well as charters its vessels under short, medium, and longer-term charters. Navios Maritime Partners L.P. was founded in 2007 and is based in Monaco.

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.

StealthGas Inc., together with its subsidiaries, provides seaborne transportation services to liquefied petroleum gas (LPG) producers and users worldwide. The company's carriers carry various petroleum gas products in liquefied form, including propane, butane, butadiene, isopropane, propylene, and vinyl chloride monomer, as well as ammonia; refined petroleum products, such as gasoline, diesel, fuel oil, and jet fuel; and edible oils and chemicals. It offers crude oil and natural gas. The company operates a fleet of 33 LPG carries, including six JV vessels. StealthGas Inc. was incorporated in 2004 and is based in Athens, Greece.

Dynagas LNG Partners LP, through its subsidiaries, operates in the seaborne transportation industry in Greece and internationally. The company owns and operates liquefied natural gas (LNG) carriers. Its fleet consists of six LNG carriers with an aggregate carrying capacity of approximately 914,000 cubic meters. Dynagas GP LLC serves as the general partner of Dynagas LNG Partners LP. The company was incorporated in 2013 and is headquartered 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.

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.