The Joliet Refinery opened in 1972 and is the second newest refinery in the United States. The Joliet Refinery ranks first in the U.S. on the Energy Intensity Index (EII), a measure of energy efficiency in the oil industry.

The Joliet Refinery Corporate Citizenship:

• Joliet Refinery employees have volunteered thousands of hours and contributed hundreds of thousands of dollars to dozens of local non-profit organizations through VIP grants, which are awarded by ExxonMobil to organizations where employees perform volunteer work.
• The ExxonMobil Joliet Refinery is consistently the second highest contributor to the United Way of Will County.

• Materials produced: diesel, gasoline, coke, sulfur, propylene, asphalt
• Daily production: 248,000 barrels
• Employees: 650
• Embedded contractors: 300
• Contractor unions represented: Electrical, Pipe Fitters, Operating Engineers, Carpenters, Iron Workers, Insulators, and Boilermakers