ExxonMobil Oil Joliet Refinery — Plant Summary
- EIA Plant ID
- 50627
- Capacity
- 43.4 MW
- Primary Fuel
- OG
- Technology
- Other Gases
- Status
- Operating
- Location
- Will, IL
- Operating Since
- 1986
- Generators
- 3
- Operator
- ExxonMobil Oil Corp
- Parent Company
- Exxon Mobil
- Annual Generation
- 185,264 MWh
- Capacity Factor
- 48.9%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- RFC
ExxonMobil Oil Joliet Refinery
OperatingOther Gas
Ranked #1 of 1 Other Gas plants in IL#9 of 19 nationally
43.4 MW Other Gas operating in Will, IL — PJM Interconnection, LLC
EIAWD
43.4 MW
Nameplate Capacity
3
Generators
units
Other Gases
Technology
1986
Operating Since
Location
Coordinates
41.4167, -88.1833
County
Will, IL
Nearby Plants
- Elwood Energy LLCNatural Gas1344 MW · 5.6 km
- Jackson Generation, LLCNatural Gas1288.6 MW · 6.6 km
- Dresden Generating StationNuclear2018.6 MW · 7.8 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | ExxonMobil Oil Corp | ExxonMobil Oil | — |
| Owner(s) | ExxonMobil Oil Corp | Exxon Mobil | — |
| Status | Operating | — | — |
Ownership Chain
About
The ExxonMobil Oil Joliet Refinery is a 43.4 MW power plant located in Will County, Illinois. The plant, which came online in 1986, is owned and operated by ExxonMobil Oil Corporation. It utilizes other gases (OG) as its primary fuel source and consists of three generators.
In the most recent year of reported data, the ExxonMobil Oil Joliet Refinery generated 185,264 MWh of electricity, achieving a capacity factor of 48.9%. The plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. It holds the rank of 1 out of 1 among power plants in Illinois using its primary fuel, and ranks 11 out of 21 nationally for plants using that fuel.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
34.5 kV
Regulatory Status
NR
Entity Type
Industrial
Sector
Industrial CHP
Generation
19.3K MWh
Latest Month
185.3K MWh
Annual Generation
48.9%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
PJM
LMP Node
—
Pricing Hub
N ILLINOIS HUB
Node Source
OSM spatial match
News & Articles (10)Beta
General
Exxon Mobil says working to resolve operational issue at refinery in Joliet, Illinois
Exxon Mobil said on Tuesday it was working to resolve an issue at its 275000-barrels-per-day refinery in Joliet, Illinois.
Reuters·10 months ago
Industry·other
EIA DATA: Surprise gasoline stock build as demand falters
Quantum Commodity Intelligence - US Energy Information Administration data Wednesday showed US gasoline stocks rising for the first time in 10 weeks versus...
Quantum Commodity Intelligence·10 months ago
General
EIA DATA: Surprise gasoline stock build as demand falters
Quantum Commodity Intelligence - US Energy Information Administration data Wednesday showed US gasoline stocks rising for the first time in 10 weeks versus...
Quantum Commodity Intelligence·10 months ago
General
EIA DATA: Surprise gasoline stock build as demand falters
Quantum Commodity Intelligence - US Energy Information Administration data Wednesday showed US gasoline stocks rising for the first time in 10 weeks versus...
Quantum Commodity Intelligence·10 months ago
Last updated 2026-03-26
View all 10 articles