Juan Carlos Boue

Nynas Group provides marketing services in the oil refinery market. The company operates through its two main subsidiaries, Nynas Bitumen and Nynas Naphthenics. It also operates refineries in Great Britain and Sweden. Nynas Group is headquartered in Stockholm, Sweden

Oxford Institute for Energy Studies operates as an energy research institute. Its three main programs include oil, natural gas, and electricity. It publishes analysis of topical global energy issues across production, consumption, markets, policy and regulation. The company is headquartered in Oxford, the United Kingdom.

PDV Ltd. provides online marketing services. It also provides analytics and modeling, data collection, and market research services. The company was founded in 2000 and is headquartered Hertfordshire, the United Kingdom.

Pemex Internacional Espana SA provides business management consulting services. The company is located in Spain. The CEOs of the Spanish company are José Manuel Carrera Panizzo and Raúl Fortunato Cardoso Maycotte.

CITGO Petroleum Corp. engages in refining, transporting, and marketing of transportation fuels, lubricants, and petrochemicals products. It offers retail gasoline, diesel fuel, jet fuel, lubricants, petrochemicals, and other petroleum-based industrial products. The company was founded by Henry L. Doherty in 1910 and is headquartered in Houston, TX.