Marcel P. Kramer

Petro-Canada engages in the exploration of oil and gas. The company has operations in Libya, Algeria, the United States, and Canada. Petro-Canada manufactures petroleum products. It is headquartered in Calgary, Canada.

Royal Boskalis Westminster NV engages in the provision of maritime services. It operates through the following segments: Dredging and Inland Infra, Offshore Energy, and Salvage, Towage, and Holding. The Dredging and Inland Infra segment is involved in all activities required to remove silt, sand, and other layers from the seabed and river bed and in some cases in coastal protection and land reclamation. The Offshore Energy segment focuses on offshore contracting capabilities and services of the group in international energy sector, including oil and gas companies and providers of renewable energy, such as wind power. Salvage, Towage, and Holding segment provides assistance to incoming and outgoing ocean-going vessels through the joint ventures of the group, Keppel Smith, Saam Smit Towage, and Kotug Smit Towage. The company was founded in 1910 and is headquartered in Papendrecht, the Netherlands.

Nederlandse Gasunie NV engages in gas infrastructure activities. It also maintains and develops the gas transport grid, and offers gas transport and related services. The company is headquartered in Groningen, the Netherlands.

International Energy Agency provides data, analysis, and solutions on all fuels and technologies. The company was founded in 1974 and is headquartered in Paris, France.

Gas Infrastructure Europe provides oil and gas infrastructure services. The private company is based in Brussels, Belgium.

South Stream AG owns and operates gas pipelines. The private company is based in Zug, Switzerland.