The Joliet Refinery at 25915 South Frontage Road in Channahon, Will County, Illinois, is owned and operated by ExxonMobil Oil Corporation and had 251,800 barrels per day of capacity in 2024, according to EIA. A FERC filing lists onsite generators of 22 MW, 11.2 MW and 6.5 MW in the PJM market area.

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Overview

ExxonMobil Oil Corporation is the owner/operator of the Joliet Refinery at 25915 South Frontage Road in Channahon, Will County, Illinois. EIA reported the refinery had 251,800 barrels per day of capacity in 2024. A power outage in September 2026 led to a two-week downtime at the refinery, according to a BOE Report article.

Profile

Electricity and grid: A FERC filing lists the ExxonMobil Oil Joliet Refinery generators GTG1 at 22.00 MW, MG at 11.20 MW and STG1 at 6.50 MW in the PJM market area. In July 2024 the refinery was shut down on an emergency basis in response to a power outage brought on by severe weather conditions.

Ownership and recent events: EPA's registry lists Exxon Mobil Corp as parent company of the facility. Wood Mackenzie reported the refinery's 50,000-bpd catalytic reformer was taken offline on October 20, 2026.