Fuel mix · 2025
Petroleum Energy
Electricity reported from petroleum-liquid and petroleum-coke generating units.
- Hawaii
- Top producer
- 19.1M MWh
- US generation · 2025
- 52%
- Concentration · top 3 states
- 44
- States generating
Verify with EIA → · Methodology
Top 3 states = 52% of U.S. petroleum
According to the U.S. Energy Information Administration (EIA State Electricity Profiles, 2025), Petroleum generated 19.1M MWh of U.S. electricity across 44 states, led by Hawaii at 37% of the national total. Petroleum supplies 63.4% of Hawaii's own electricity mix.
52%
concentration · top 3 states of U.S. total
Hawaii
largest producer (63.4% of its mix)
44
states generating petroleum
19.1M MWh
national generation (2025)
Top Petroleum producing states (2025)
Net generation in terawatt-hours (TWh), from EIA State Electricity Profiles.
- Hawaii
Hawaii
7 TWh
- Michigan 2
Michigan
2 TWh
- Ohio 1
Ohio
1 TWh
- New York 1
New York
1 TWh
- Florida 1
Florida
1 TWh
- Alaska 1
Alaska
1 TWh
- Virginia 1
Virginia
1 TWh
- Montana 1
Montana
1 TWh
- Louisiana 1
Louisiana
1 TWh
- Massachusetts 0
Massachusetts
0 TWh
Petroleum Generation by State
| Rank | State | Generation (MWh) | Share of State Mix |
|---|---|---|---|
| #1 | Hawaii | 7.0M | 63.4% |
| #2 | Michigan | 1.7M | 1.4% |
| #3 | Ohio | 1.3M | 0.9% |
| #4 | New York | 1.3M | 0.9% |
| #5 | Florida | 1.2M | 0.4% |
| #6 | Alaska | 1.0M | 15.9% |
| #7 | Virginia | 499.7K | 0.5% |
| #8 | Montana | 467.5K | 1.6% |
| #9 | Louisiana | 450.0K | 0.5% |
| #10 | Massachusetts | 402.4K | 1.5% |
| #11 | Maryland | 380.8K | 1.0% |
| #12 | Georgia | 315.0K | 0.2% |
| #13 | Missouri | 254.7K | 0.3% |
| #14 | Connecticut | 243.8K | 0.5% |
| #15 | Texas | 232.3K | 0.0% |
| #16 | Pennsylvania | 224.0K | 0.1% |
| #17 | North Carolina | 192.2K | 0.1% |
| #18 | New Hampshire | 181.6K | 1.0% |
| #19 | Indiana | 176.8K | 0.2% |
| #20 | Maine | 167.3K | 1.2% |
| #21 | West Virginia | 141.9K | 0.3% |
| #22 | New Jersey | 129.2K | 0.2% |
| #23 | Tennessee | 125.2K | 0.2% |
| #24 | South Carolina | 103.1K | 0.1% |
| #25 | Delaware | 103.0K | 1.9% |
| #26 | Kansas | 102.6K | 0.2% |
| #27 | Kentucky | 76.4K | 0.1% |
| #28 | Nebraska | 69.9K | 0.2% |
| #29 | Iowa | 68.1K | 0.1% |
| #30 | Wisconsin | 67.6K | 0.1% |
| #31 | Rhode Island | 66.8K | 0.7% |
| #32 | California | 55.0K | 0.0% |
| #33 | Wyoming | 53.1K | 0.1% |
| #34 | Arizona | 40.3K | 0.0% |
| #35 | Oklahoma | 35.1K | 0.0% |
| #36 | Washington | 33.6K | 0.0% |
| #37 | Utah | 31.3K | 0.1% |
| #38 | Illinois | 30.9K | 0.0% |
| #39 | North Dakota | 30.7K | 0.1% |
| #40 | Alabama | 16.7K | 0.0% |
| #41 | Mississippi | 10.1K | 0.0% |
| #42 | Minnesota | 9.8K | 0.0% |
| #43 | Nevada | 7.3K | 0.0% |
| #44 | Idaho | 111.09 | 0.0% |
Operating fleet · May 2026
Largest plants with operating petroleum units
EIA lists 714 plants with 24,498.6 MW of operating summer capacity. Table limited to the 30 largest matched plants.
Scroll horizontally for state, technology, and capacity.
| Plant | Reported operator | State | Technology | Summer capacity |
|---|---|---|---|---|
| Oswego Harbor Power | Oswego Harbor Power | New York | Petroleum Liquids | 1,613.5 MW |
| Canal | Canal Generating LLC | Massachusetts | Petroleum Liquids | 1,448.8 MW |
| William F Wyman Hybrid | FPL Energy Wyman LLC | Maine | Petroleum Liquids | 810.9 MW |
| Herbert A Wagner | H.A. Wagner LLC | Maryland | Petroleum Liquids | 702 MW |
| Brame Energy Center | Cleco Power LLC | Louisiana | Petroleum Coke | 634.2 MW |
| Kahe | Hawaiian Electric Co Inc | Hawaii | Petroleum Liquids | 582.1 MW |
| New Haven Steam | Generation Bridge II Connecticut, LLC | Connecticut | Petroleum Liquids | 562.2 MW |
| Holtsville | National Grid Generation LLC | New York | Petroleum Liquids | 532.3 MW |
| McManus | Georgia Power Co | Georgia | Petroleum Liquids | 416 MW |
| Intercession City | Duke Energy Florida, LLC | Florida | Petroleum Liquids | 415 MW |
| Montville Station | Montville Power LLC | Connecticut | Petroleum Liquids | 410 MW |
| Newington | Granite Shore Power | New Hampshire | Petroleum Liquids | 400.2 MW |
| Morgan Creek | Luminant Generation Company LLC | Texas | Petroleum Liquids | 397 MW |
| Northeast (MO) | Evergy Metro | Missouri | Petroleum Liquids | 392 MW |
| Croydon CT Generating Station | Constellation Power, Inc | Pennsylvania | Petroleum Liquids | 391 MW |
| Waiau | Hawaiian Electric Co Inc | Hawaii | Petroleum Liquids | 361.7 MW |
| Commonwealth Chesapeake | Commonwealth Chesapeake Co LLC | Virginia | Petroleum Liquids | 317.1 MW |
| DeBary | Duke Energy Florida, LLC | Florida | Petroleum Liquids | 299 MW |
| Wilson | Georgia Power Co | Georgia | Petroleum Liquids | 297.5 MW |
| Wading River | National Grid Generation LLC | New York | Petroleum Liquids | 240.6 MW |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Massachusetts | Petroleum Liquids | 226.6 MW |
| Kalaeloa Cogen Plant | Kalaeloa Partners LP | Hawaii | Petroleum Liquids | 220 MW |
| Germantown | Wisconsin Electric Power Co | Wisconsin | Petroleum Liquids | 217.8 MW |
| Morgantown Generating Plant | Lanyard Power Holdings, LLC | Maryland | Petroleum Liquids | 216 MW |
| Northside Generating Station | JEA | Florida | Petroleum Liquids | 212 MW |
| GenConn Devon LLC | GenConn Devon LLC | Connecticut | Petroleum Liquids | 196 MW |
| R S Nelson | Entergy Louisiana LLC | Louisiana | Petroleum Coke | 190.4 MW |
| GenConn Middletown LLC | GenConn Middletown LLC | Connecticut | Petroleum Liquids | 187.6 MW |
| Maalaea | Maui Electric Co Ltd | Hawaii | Petroleum Liquids | 185.6 MW |
| Portland (PA) | Portland Power, LLC | Pennsylvania | Petroleum Liquids | 177.5 MW |
Frequently Asked Questions
How concentrated is U.S. petroleum generation? ▼
Which state generates the most petroleum energy? ▼
What does petroleum operating capacity mean here? ▼
Where does RateWatt's petroleum data come from? ▼
Reading the petroleum numbers
Fuel concentration at the state level is not the same as the electricity a state consumes after interstate transfers.
- Hawaii reports petroleum at 63.4% of its own mix; the top three states are 52% of the U.S. petroleum total. Hawaii profile
- See every fuel on one hub to place petroleum in the national mix. All energy sources
- Generation mix, regulation, and geography Read the guide
Generation mix is not the same as the electricity a state consumes; surplus is traded across the grid. See our methodology.
Where these figures come from
Generation and capacity are separate EIA series with separate vintages; neither is a retail-rate or customer-delivery measure.
All federal data sources used on this page
- EIA State Electricity Profiles, net generation by state by energy source. eia.gov/electricity/data/state
- EIA Operating Generator Capacity, operating unit, plant, operator, technology and net summer capacity. eia.gov/opendata
Generation totals on this page come from EIA State Electricity Profiles for 2025; operating-plant capacity comes from the separate EIA operating-generator inventory (May 2026). No figure is typed in by an editor. State shares are generation_mwh for this source ÷ state total generation in the same profile year. Plant rows sum only units whose EIA energy-source/technology labels match this profile's allowlist. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.