Occidental Petroleum

Anadarko Petroleum Corporation engages in the exploration, development, production, and marketing of oil and gas properties. It operates through three segments: Exploration and Production, WES Midstream, and Other Midstream. The company explores for and produces oil, natural gas, and natural gas liquids (NGLs). It is also involved in gathering, processing, treating, and transporting oil, natural-gas, and NGLs production, as well as the gathering and disposal of produced water. The company’s oil and natural gas properties are located in the United States onshore and deepwater Gulf of Mexico; and Algeria, Ghana, Mozambique, Colombia, Peru, and other countries. As of December 31, 2018, it had approximately 1.5 billion barrels of oil equivalent of proved reserves. The company was founded in 1959 and is headquartered in The Woodlands, Texas. Anadarko Petroleum Corporation operates as a subsidiary of Occidental Permian Ltd.

Phibro LLC is an international trading firm specializing in physical commodities. Founded in 1901 and based in Stamford, Connecticut, the company engages in trading, marketing, and processing a variety of products, including metal ores, oil, refined products, chemicals, and fertilizers. Phibro acts as a principal by purchasing commodities from producers and selling them to consumers in the desired forms. Additionally, it provides equity capital to promising businesses and assets within the commodity sector and participates in both greenfield and brownfield asset development projects. Previously known as Philipp Brothers, Phibro has a long history in the commodities market and was once a subsidiary of Occidental Petroleum Corporation.

Vintage Petroleum owns and operates oil and gas producing properties in nine states in the United States, Argentina, Bolivia, and Yemen.

Laguna Petroleum Corp. is an international oil and gas exploration and production company.

OxyMar provides chemicals and allied products products and service.

ARCO Long Beach is an oil producing entity

Altura Energy LP is Texas' biggest oil producer.

Cain Chemical Inc. is one of the nation's largest producers of ethylene and other products.

Elk Hills Field is a oil field in northwestern Kern County, in the Elk Hills of the San Joaquin Valley, California.

INDSPEC Chemical Corporation is a leading producer of resorcinol, being the only manufacturer in North America and one of the largest globally. Located in Petrolia, Pennsylvania, the facility has an annual production capacity of 50 million pounds, which accounts for half of the world's resorcinol supply. In addition to resorcinol, INDSPEC manufactures sodium sulfite and sodium sulfate, which are essential components in various applications including tires, wood adhesives, sunscreens, pharmaceuticals, and fire retardants. The company also provides chemical analysis and physical testing services to clients both in the United States and internationally. With a commitment to quality and safety, INDSPEC holds ISO 9001:2008 certification and adheres to RESPONSIBLE CARE® principles, highlighting its dedication to environmental stewardship and workplace safety. This focus on quality materials, robust safety policies, and customer service reinforces INDSPEC's position as an industry leader in the chemical manufacturing sector.