Oil-fired plants typically run only during peak demand or grid emergencies because oil is expensive compared to gas and coal. They have the highest CO₂ emissions per MWh of any common generation technology.
| Plant | State | Capacity | Operator |
|---|---|---|---|
| Oswego Harbor Power | New York | 1,804 MW | Oswego Harbor Power |
| Talenenergy Martins Creek | Pennsylvania | 1,772 MW | Talenenergy Martins Creek Llc |
| Roseton Generating Facility | New York | 1,242 MW | Cci Roseton Llc |
| Herbert A Wagner | Maryland | 923 MW | H.a. Wagner Llc |
| Yorktown | Virginia | 882 MW | Virginia Electric & Power Co |
| William F Wyman Hybrid | Maine | 863 MW | Fpl Energy Wyman Llc |
| Edge Moor | Delaware | 710 MW | Calpine Mid-Atlantic Generation Llc |
| New Haven Harbor | Connecticut | 642 MW | Generation Bridge Ii Connecticut, Llc |
| Gowanus Gas Turbines Generating | New York | 640 MW | U S Power Generating Company Llc |
| Kahe | Hawaii | 610 MW | Hawaiian Electric Co Inc |
| Holtsville | New York | 567 MW | National Grid Generation Llc |
| Mcmanus | Georgia | 560 MW | Georgia Power Co |
| West Lorain | Ohio | 556 MW | Vermillion Power Llc |
| Croydon Ct Generating Station | Pennsylvania | 546 MW | Constellation Power, Inc |
| Northeast (Mo) | Missouri | 540 MW | Evergy Metro |
| Montville Station | Connecticut | 495 MW | Montville Power Llc |
| Waiau | Hawaii | 475 MW | Hawaiian Electric Co Inc |
| Newington | New Hampshire | 414 MW | Granite Shore Power |
| Commonwealth Chesapeake | Virginia | 403 MW | Commonwealth Chesapeake Co Llc |
| Quindaro | Kansas | 383 MW | City Of Kansas City - (Ks) |
| Wilson | Georgia | 318 MW | Georgia Power Co |
| Wading River | New York | 310 MW | National Grid Generation Llc |
| Kalaeloa Cogen Plant | Hawaii | 299 MW | Kalaeloa Partners Lp |
| Fisk Street | Illinois | 260 MW | Midwest Generations Eme Llc |
| Morgantown Generating Plant | Maryland | 260 MW | Lanyard Power Holdings, Llc |
| Genconn Middletown Llc | Connecticut | 242 MW | Genconn Middletown Llc |
| Genconn Devon Llc | Connecticut | 242 MW | Genconn Devon Llc |
| Maalaea | Hawaii | 230 MW | Maui Electric Co Ltd |
| Bayboro | Florida | 227 MW | Duke Energy Florida, Llc |
| Devon Station | Connecticut | 223 MW | Devon Power Llc |
| Firstenergy Bay Shore | Ohio | 187 MW | Walleye Power, Llc |
| North Pole | Alaska | 181 MW | Golden Valley Elec Assn Inc |
| Vienna Operations | Maryland | 181 MW | Nrg Vienna Operations Inc |
| Rosemary Power Station | North Carolina | 180 MW | Virginia Electric & Power Co |
| Schiller | New Hampshire | 171 MW | Granite Shore Power |
| W H Weatherspoon | North Carolina | 163 MW | Duke Energy Progress - (Nc) |
| Dynegy Oakland Power Plant | California | 149 MW | Dynegy Oakland, Llc |
| Savannah River Mill | Georgia | 140 MW | Georgia-Pacific Consr Prods Lp-Savannah |
| Exelon Medway Llc | Massachusetts | 135 MW | Constellation Power, Inc |
| Spirit Mound | South Dakota | 135 MW | Basin Electric Power Coop |
| Richmond Generating Station | Pennsylvania | 132 MW | Constellation Power, Inc |
| Jones Street | Nebraska | 130 MW | Omaha Public Power District |
| Burlington (Co) | Colorado | 129 MW | Tri-State G & T Assn, Inc |
| Stock Island | Florida | 127 MW | Utility Board Of Key West City |
| Hilton Head | South Carolina | 118 MW | South Carolina Public Service Authority |
| Manitowoc | Wisconsin | 117 MW | Manitowoc Public Utilities |
| Cos Cob | Connecticut | 115 MW | Connecticut Jet Power Llc |
| Campbell Industrial Park | Hawaii | 113 MW | Hawaiian Electric Co Inc |
| Waukegan | Illinois | 112 MW | Midwest Generations Eme Llc |
| Myrtle Beach | South Carolina | 112 MW | South Carolina Public Service Authority |
| Glenwood | New York | 110 MW | National Grid Generation Llc |
| Shoreham Energy Llc | New York | 100 MW | Mph Cross Island Power |
| Sc 1 Data Center, Phase 2 | California | 99.6 MW | Xeres Ventures Llc |
| Nrg Chalk Point Ct | Maryland | 94.0 MW | Nrg Chalk Point Ct |
| Lime Creek | Iowa | 90.2 MW | Interstate Power And Light Co |
| Port Allen (Hi) | Hawaii | 89.5 MW | Kauai Island Utility Cooperative |
| Keahole | Hawaii | 89.1 MW | Hawaii Electric Light Co Inc |
| Philadelphia | Maryland | 82.8 MW | Constellation Power Source Generation, Llc |
| Low Moor | Virginia | 82.8 MW | Virginia Electric & Power Co |
| Northern Neck | Virginia | 82.8 MW | Virginia Electric & Power Co |
| Walton Bainbridge Power Facility | Georgia | 80.0 MW | Walton Bainbridge Llc |
| Ames Gt | Iowa | 78.7 MW | City Of Ames - (Ia) |
| New Ulm | Minnesota | 78.5 MW | New Ulm Public Utilities Comm |
| Delaware Generating Station | Pennsylvania | 77.0 MW | Constellation Power, Inc |
| Forked River | New Jersey | 76.8 MW | Forked River Power, Llc |
| Southwark | Pennsylvania | 74.4 MW | Constellation Power, Inc |
| Shoreham | New York | 71.5 MW | National Grid Generation Llc |
| Inland Paperboard Packaging Rome | Georgia | 70.4 MW | Inland Paperboard - Rome Mill |
| Waterside Power, Llc | Connecticut | 69.6 MW | Waterside Power, Llc |
| Valero Refinery Corpus Christi West | Texas | 69.2 MW | Valero Refining Co |
| M Street Jet | Massachusetts | 69.0 MW | Massachusetts Bay Trans Auth |
| Fairgrounds | Missouri | 68.3 MW | Union Electric Co - (Mo) |
| Yellowstone Energy Lp | Montana | 68.0 MW | Yellowstone Energy Lp |
| Watertown Power Plant | South Dakota | 67.5 MW | Missouri Basin Muni Power Agny |
| Hamakua Energy Plant | Hawaii | 66.0 MW | Hamakua Energy Lp |
| Superior | Michigan | 64.0 MW | Dte Electric Company |
| Falls | Pennsylvania | 63.6 MW | Constellation Power, Inc |
| Moser Generating Station | Pennsylvania | 63.6 MW | Constellation Power, Inc |
| Lemon Creek | Alaska | 61.7 MW | Alaska Electric Light & Power Co. |
| St Bonifacius | Minnesota | 61.2 MW | Great River Energy |
| Columbia (Mo) | Missouri | 61.1 MW | City Of Columbia - (Mo) |
| Moreau | Missouri | 60.8 MW | Union Electric Co - (Mo) |
| Mexico | Missouri | 60.7 MW | Union Electric Co - (Mo) |
| Moberly | Missouri | 60.6 MW | Union Electric Co - (Mo) |
| Wheelabrator Portsmouth | Virginia | 60.0 MW | Wheelabrator Environmental Systems |
| Hebron | Nebraska | 56.7 MW | Nebraska Public Power District |
| Mccook | Nebraska | 56.7 MW | Nebraska Public Power District |
| Chester Generating Station | Pennsylvania | 55.8 MW | Constellation Power, Inc |
| Christiana | Delaware | 55.0 MW | Calpine Mid-Atlantic Generation Llc |
| Mountain | Pennsylvania | 54.0 MW | Mountain Power, Llc |
| Tolna | Pennsylvania | 54.0 MW | Tolna Power, Llc |
| Hawkeye Energy Greenport Llc | New York | 54.0 MW | Hawkeye Energy Greenport Llc |
| Diesel Generators | Wisconsin | 54.0 MW | Madison Gas & Electric Co |
| Alamosa | Colorado | 53.2 MW | Public Service Co Of Colorado |
| Unionville | Missouri | 53.2 MW | Associated Electric Coop, Inc |
| Sunbury Generation Lp | Pennsylvania | 52.7 MW | Sunbury Generation Lp |
| West Babylon | New York | 52.4 MW | National Grid Generation Llc |
| Chesapeake | Virginia | 51.1 MW | Virginia Electric & Power Co |
| Winston | Florida | 50.0 MW | City Of Lakeland - (Fl) |
| Jamestown | North Dakota | 48.2 MW | Otter Tail Power Co |