Top Energy Companies in USA List by Market Cap as of August 2026

Top Energy Companies in USA List by Market Cap as of August 2026. Biggest and Top Energy Companies in USA Companies by Market Cap. Largest Top Energy Companies in USA List by Market Cap as of August 2026.
Top Energy Companies in USA
Top Energy Companies in USA, Biggest Energy Companies in USA, Largest Energy Companies in USA.

  1. CVR Energy Inc.

    World Rank (Aug-2026)
    4,549
    Market Cap (Aug-2026)
    3.545 Billion USD
    World Rank (Jan-05-2024)
    4,238
    Market Cap (Jan-05-2024)
    3.131 Billion USD
    World Rank (Jul-30-2023)
    3,773
    Market Cap (Jul-30-2023)
    3.670 Billion USD
    World Rank (Dec-25-2022)
    3,911
    Market Cap (Dec-25-2022)
    3.187 Billion USD
    World Rank (Jan-07-2022)
    6,268
    Market Cap (Jan-07-2022)
    2.01 Billion USD
    Annual Revenue in USD
    7,162 Million USD
    Annual Operating Income in USD
    182 Million USD
    Annual Net Income in USD
    27 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    CVR Energy is a Petroleum refining company. The headquarters is in USA.

    Company Website
    CVR ENERGY INC

  2. Avista Corporation

    World Rank (Aug-2026)
    4,769
    Market Cap (Aug-2026)
    3.279 Billion USD
    World Rank (Jan-05-2024)
    4,592
    Market Cap (Jan-05-2024)
    2.810 Billion USD
    World Rank (Jul-30-2023)
    4,402
    Market Cap (Jul-30-2023)
    2.952 Billion USD
    World Rank (Dec-25-2022)
    3,877
    Market Cap (Dec-25-2022)
    3.234 Billion USD
    World Rank (Jan-07-2022)
    4,805
    Market Cap (Jan-07-2022)
    3.04 Billion USD
    Annual Revenue in USD
    1,964 Million USD
    Annual Operating Income in USD
    354 Million USD
    Annual Net Income in USD
    193 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Avista Corporation is a Energy company. It involved in the production, transmission and distribution of energy as well as other energy related businesses. The company operating division, providing electricity to nearly 3,40,000 customers and natural gas to about 3,00,000 customers across 30,000 square miles and four northwestern states. The headquarters is in USA.

    Company Website
    AVISTA CORPORATION

  3. Alliance Resource Partners

    World Rank (Aug-2026)
    4,781
    Market Cap (Aug-2026)
    3.271 Billion USD
    World Rank (Jan-05-2024)
    4,669
    Market Cap (Jan-05-2024)
    2.731 Billion USD
    World Rank (Jul-30-2023)
    5,034
    Market Cap (Jul-30-2023)
    2.436 Billion USD
    World Rank (Dec-25-2022)
    4,295
    Market Cap (Dec-25-2022)
    2.816 Billion USD
    World Rank (Jan-07-2022)
    6,830
    Market Cap (Jan-07-2022)
    1.75 Billion USD
    Annual Revenue in USD
    2,195 Million USD
    Annual Operating Income in USD
    385 Million USD
    Annual Net Income in USD
    311 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile

    Alliance Resource Partners is a Diversified Coal Producer and Marketer with Significant Operations in the Eastern United States. The headquarters is in USA.

    Company Website
    ALLIANCE RESOURCE PARTNERS L.P.

  4. Nextier Oilfield Solutions

    World Rank (Aug-2026)
    4,794
    World Rank (Jan-05-2024)
    4,794
    World Rank (Jul-30-2023)
    4,794
    Market Cap (Jul-30-2023)
    2.602 Billion USD
    World Rank (Dec-25-2022)
    4,873
    Market Cap (Dec-25-2022)
    2.347 Billion USD
    World Rank (Jan-07-2022)
    8,013
    Market Cap (Jan-07-2022)
    1.33 Billion USD
    Annual Revenue in USD
    3,245 Million USD
    Annual Operating Income in USD
    333 Million USD
    Annual Net Income in USD
    315 Million USD
    Annual Results for Period Ending
    For year ending December-2022
    Headquarters Country
    USA
    Company Profile

    NexTier Oilfield Solutions provides engineering services for oil and gas drilling and production services. It combines approximately 2.2 million hydraulic horsepower and the latest downhole fracturing technology with well specific designs for fluids and equipment configurations to increase overall production. The headquarters is in USA.

    Patterson-UTI acquired Nextier Oilfield Solutions and they were merged in 2023. Post that NexTier Oilfield Solutions is delisted and only Patterson-UTI will be trading on stock exchanges.

    Company Website
    NEXTIER OILFIELD SOLUTIONS

  5. Plug Power

    World Rank (Aug-2026)
    4,807
    Market Cap (Aug-2026)
    3.241 Billion USD
    World Rank (Jan-05-2024)
    4,772
    Market Cap (Jan-05-2024)
    2.652 Billion USD
    World Rank (Jul-30-2023)
    2,210
    Market Cap (Jul-30-2023)
    7.122 Billion USD
    World Rank (Dec-25-2022)
    2,000
    Market Cap (Dec-25-2022)
    7.193 Billion USD
    World Rank (Jan-07-2022)
    1,400
    Market Cap (Jan-07-2022)
    14.39 Billion USD
    Annual Revenue in USD
    710 Million USD
    Annual Operating Income in USD
    -1,467 Million USD
    Annual Net Income in USD
    -1,632 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    CEO
    Andrew J. Marsh
    Yahoo @ Nasdaq
    Company Profile

    Plug Power is a Electrical Equipment Manufacturing company. The company annual revenue is 230.2 million USD and 835 employees as on 2019. The headquarters is in USA.

    Company Website
    PLUG POWER

  6. Peabody Energy Corporation

    World Rank (Aug-2026)
    4,935
    Market Cap (Aug-2026)
    3.106 Billion USD
    World Rank (Jan-05-2024)
    4,044
    Market Cap (Jan-05-2024)
    3.329 Billion USD
    World Rank (Jul-30-2023)
    4,230
    Market Cap (Jul-30-2023)
    3.123 Billion USD
    World Rank (Dec-25-2022)
    3,141
    Market Cap (Dec-25-2022)
    4.236 Billion USD
    World Rank (Jan-07-2022)
    7,563
    Market Cap (Jan-07-2022)
    1.45 Billion USD
    Annual Revenue in USD
    3,862 Million USD
    Annual Operating Income in USD
    -80 Million USD
    Annual Net Income in USD
    -43 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Coal mining company with headquarters is in Missouri, USA.

    Company Website
    PEABODY ENERGY CORPORATION
    Wikipedia
    Wikipedia

  7. MGE Energy

    World Rank (Aug-2026)
    4,959
    Market Cap (Aug-2026)
    3.088 Billion USD
    World Rank (Jan-05-2024)
    4,783
    Market Cap (Jan-05-2024)
    2.636 Billion USD
    World Rank (Jul-30-2023)
    4,477
    Market Cap (Jul-30-2023)
    2.890 Billion USD
    World Rank (Dec-25-2022)
    4,568
    Market Cap (Dec-25-2022)
    2.591 Billion USD
    World Rank (Jan-07-2022)
    4,945
    Market Cap (Jan-07-2022)
    2.92 Billion USD
    Annual Revenue in USD
    744 Million USD
    Annual Operating Income in USD
    171 Million USD
    Annual Net Income in USD
    136 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile

    Electric utility and natural gas distribution company. Headquarters is in USA. Produces electricity as well.

    Company Website
    MGE ENERGY INC
    Wikipedia
    Wikipedia

  8. Black Stone Minerals

    World Rank (Aug-2026)
    4,990
    Market Cap (Aug-2026)
    3.055 Billion USD
    World Rank (Jan-05-2024)
    3,989
    Market Cap (Jan-05-2024)
    3.387 Billion USD
    World Rank (Jul-30-2023)
    3,796
    Market Cap (Jul-30-2023)
    3.639 Billion USD
    World Rank (Dec-25-2022)
    3,630
    Market Cap (Dec-25-2022)
    3.529 Billion USD
    World Rank (Jan-07-2022)
    5,692
    Market Cap (Jan-07-2022)
    2.33 Billion USD
    Annual Revenue in USD
    422 Million USD
    Annual Operating Income in USD
    308 Million USD
    Annual Net Income in USD
    300 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Black Stone Minerals is a Oil and Natural Gas company. The headquarters is in USA.

    Company Website
    BLACK STONE MINERALS L.P.

  9. Gulfport Energy Corporation

    World Rank (Aug-2026)
    5,034
    Market Cap (Aug-2026)
    3.007 Billion USD
    World Rank (Jan-05-2024)
    5,052
    Market Cap (Jan-05-2024)
    2.421 Billion USD
    World Rank (Jul-30-2023)
    5,963
    Market Cap (Jul-30-2023)
    1.880 Billion USD
    World Rank (Dec-25-2022)
    6,771
    Market Cap (Dec-25-2022)
    1.421 Billion USD
    World Rank (Jan-07-2022)
    7,267
    Market Cap (Jan-07-2022)
    1.57 Billion USD
    Annual Revenue in USD
    1,423 Million USD
    Annual Operating Income in USD
    600 Million USD
    Annual Net Income in USD
    428 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Company Profile
    Gulfport Energy Corporation is an independent natural gas-weighted exploration and production company focused on the exploration, acquisition and production of natural gas, crude oil and NGL. The company annual revenue is 808 million USD and annual net income is 138 million USD as on 2021. The headquarters is in USA.
    Company Website
    GULFPORT ENERGY CORPORATION

  10. Holly Energy Partners

    World Rank (Aug-2026)
    5,053
    World Rank (Jan-05-2024)
    5,053
    World Rank (Jul-30-2023)
    5,053
    Market Cap (Jul-30-2023)
    2.425 Billion USD
    World Rank (Dec-25-2022)
    4,925
    Market Cap (Dec-25-2022)
    2.320 Billion USD
    World Rank (Jan-07-2022)
    6,391
    Market Cap (Jan-07-2022)
    1.95 Billion USD
    Annual Revenue in USD
    547 Million USD
    Annual Operating Income in USD
    221 Million USD
    Annual Net Income in USD
    217 Million USD
    Annual Results for Period Ending
    For year ending December-2022
    Headquarters Country
    USA
    Company Profile

    Holly Energy Partners is a Oil company. It provides petroleum product and crude oil transportation, terminalling services, storage and through out services to the petroleum industry including HollyFrontier Corporation subsidiaries. The headquarters is in USA.

    HF Sinclair Corporation acquired Holly Energy Partners in 2023. Post that Holly Energy Partners was delisted.

    HF Sinclair Corporation is a listed company on stock exchanges.

    Company Website
    HOLLY ENERGY PARTNERS L.P.

Share