Calumet Specialty Product Partners is a holding company. Through its subsidiaries, the company is an independent producer of hydrocarbon products in North America. In its specialty products segment, the company processes crude oil and other feedstocks into a variety of customized lubricating oils, white mineral oils, solvents, petrolatums and waxes. The company's specialty products are sold to customers who purchase them as raw material components for basic industrial, consumer and automotive goods. In its fuel products segment, the company processes crude oil into fuel and fuel-related products, including gasoline, diesel, jet fuel, asphalt and heavy fuel oils, and resells purchased crude oil to third party customers.

Macquarie Infrastructure is a holding company. The company owns and operates a portfolio of businesses that provide services to other businesses, government agencies and individuals primarily in the U.S. The businesses the company owns and operate are: International-Matex Tank Terminals, which provides bulk liquid terminalling services to third parties in the U.S. and in Canada; Atlantic Aviation, which provides fuel, terminal, aircraft hangaring and other services primarily to owners and operators of general aviation jet aircraft at airports throughout the U.S.; and MIC Hawaii, which consist of energy company that processes and distributes gas and provides related services.