Dionisio Manuel Tun Molina

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.

Petróleos de Venezuela SA is a gas and oil company. It is engaged in exploring, extracting, transporting, manufacturing, refining, storing, and marketing crude oil and other hydrocarbons. The company was founded in 1975 and is headquartered in Caracas, Venezuela.

Energia Mayakan S de RL de CV owns and operates a natural gas pipeline. The company is headquartered in Merida, Mexico.

Cordoba Corp. provides civil engineering & construction management consulting services. Its services include ADA-accessibility surveys, engineering and design, program management, move management services, environmental services, and transportation planning. The company was founded by George L. Pla in 1983 and is headquartered in Los Angeles, CA.

Society of Manufacturing Engineers, Inc. is a non-profit organization that provides information and knowledge services. It offers engineers and executives with information on technologies and professional development resources. The firm also organizes expositions and other industry-related events. The company was founded in 1932 and is headquartered in Southfield, MI.

The American Society of Civil Engineers, founded in 1852, is the oldest national engineering society in America. The non-profit company is based in Reston, VA and has subsidiaries in the United States. With over 150,000 members worldwide, the organization advocates for sustainable and resilient practices to maintain and modernize the nation's infrastructure. The company also works to increase investment in infrastructure and improve engineering knowledge and competency. The society's Civil Engineering Landmark Program recognizes historically significant civil engineering projects, structures, and sites.

The Society of Economic Geologists (SEG) is an organization that focuses on economic geology. The organization is based in Littleton, CO. The company offers membership benefits such as access to publications, webinars, and job listings. The SEG also has a foundation that provides funding for students and early career professionals.

The Prospectors & Developers Association of Canada operates as a mineral exploration and development association. The non-profit company is based in Toronto, Canada. and has subsidiaries in Canada.

PDVSA Gas SA engages in gas production and exploration services. The company is based in Caracas, Venezuela. The Venezuelan company is a subsidiary of Petróleos de Venezuela S.A. (PDVSA) and ultimately controlled by the Government of Venezuela.

Part of Shell Plc, Intergen Mexico BV is a Dutch company that provides financial investment services, including the management of funds, trusts, and foundations. The company is based in Rotterdam, the Netherlands.

Terminal de LNG de Altamira S de RL de CV operates as an oil and gas terminal. The joint venture company is based in Altamira, Mexico.

Petroleos de Venezuela SA Ltd. is a British dormant company that was founded in 2016. The private company is based in London, UK. The company's description states that it operates as a dormant company.