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. NOW Inc.

    World Rank (Aug-2026)
    5,071
    Market Cap (Aug-2026)
    2.970 Billion USD
    World Rank (Jan-05-2024)
    7,853
    Market Cap (Jan-05-2024)
    1.163 Billion USD
    World Rank (Jul-30-2023)
    7,806
    Market Cap (Jul-30-2023)
    1.210 Billion USD
    World Rank (Dec-25-2022)
    6,774
    Market Cap (Dec-25-2022)
    1.419 Billion USD
    World Rank (Jan-07-2022)
    9,346
    Market Cap (Jan-07-2022)
    1.02 Billion USD
    Annual Revenue in USD
    2,820 Million USD
    Annual Operating Income in USD
    -93 Million USD
    Annual Net Income in USD
    -89 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    DistributionNOW is a supplier to energy and industrial markets worldwide. They operate in 20+ countries and deliver a complete range of products and services to upstream, midstream, downstream and industrial customers.

    They offer hundreds of thousands of stocked items, including pipe, valves and automation, fittings, instrumentation, industrial and safety supplies, tools, electrical, drilling and production equipment, artificial lift, pumps, fabricated equipment and industrial paints and coatings.

    Headquarters is in Texas, USA.

    Company Website
    NOW INC

  2. Whiting Petroleum Corporation

    World Rank (Aug-2026)
    5,123
    World Rank (Jan-05-2024)
    5,123
    World Rank (Jul-30-2023)
    5,123
    World Rank (Dec-25-2022)
    5,123
    World Rank (Jan-07-2022)
    5,123
    Market Cap (Jan-07-2022)
    2.78 Billion USD
    Annual Revenue in USD
    1,533 Million USD
    Annual Operating Income in USD
    442 Million USD
    Annual Net Income in USD
    428 Million USD
    Annual Results for Period Ending
    For year ending December-2021
    Headquarters Country
    USA
    Company Profile
    Whiting Petroleum Corporation is an Independent Exploration and Production company with an oil focused asset base. The company annual revenue is 1,572 million USD, total assets is 7.636 billion USD, Total equity is 4.025 billion USD and 505 employees as on 2019. The headquarters is in USA.
    Company Website
    WHITING PETROLEUM CORPORATION

  3. Select Energy Services

    World Rank (Aug-2026)
    5,148
    Market Cap (Aug-2026)
    2.889 Billion USD
    World Rank (Jan-05-2024)
    9,111
    Market Cap (Jan-05-2024)
    0.906 Billion USD
    World Rank (Jul-30-2023)
    9,103
    Market Cap (Jul-30-2023)
    0.930 Billion USD
    World Rank (Dec-25-2022)
    8,202
    Market Cap (Dec-25-2022)
    1.035 Billion USD
    World Rank (Jan-07-2022)
    11,238
    Market Cap (Jan-07-2022)
    0.73 Billion USD
    Annual Revenue in USD
    1,407 Million USD
    Annual Operating Income in USD
    29 Million USD
    Annual Net Income in USD
    21 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile
    Select Energy Services is a Provider of total Water Solutions to customers that include major integrated Oil companies and independent Oil and Gas Producers company. It services are offered through three divisions they are water solutions, water infrastructure and oilfield chemicals. The headquarters is in USA.
    Company Website
    SELECT ENERGY SERVICES INC

  4. Delek Logistics Partners Lp

    World Rank (Aug-2026)
    5,169
    Market Cap (Aug-2026)
    2.873 Billion USD
    World Rank (Jan-05-2024)
    5,777
    Market Cap (Jan-05-2024)
    1.944 Billion USD
    World Rank (Jul-30-2023)
    5,625
    Market Cap (Jul-30-2023)
    2.055 Billion USD
    World Rank (Dec-25-2022)
    5,414
    Market Cap (Dec-25-2022)
    2.021 Billion USD
    World Rank (Jan-07-2022)
    6,606
    Market Cap (Jan-07-2022)
    1.85 Billion USD
    Annual Revenue in USD
    1,013 Million USD
    Annual Operating Income in USD
    182 Million USD
    Annual Net Income in USD
    176 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile
    Delek Logistics Partners LP is a Growth Oriented Publicly Traded Master Limited Partnership own, operate, acquire and construct crude oil and refined products logistics and marketing assets company. The company annual revenue is 142.3 million USD. The headquarters is in USA.
    Company Website
    DELEK LOGISTICS PARTNERS LP

  5. TC Pipelines Lp

    World Rank (Aug-2026)
    5,231
    World Rank (Jan-05-2024)
    5,231
    World Rank (Jul-30-2023)
    5,231
    World Rank (Dec-25-2022)
    5,231
    World Rank (Jan-07-2022)
    5,231
    Annual Net Income in USD
    284 Million USD
    Annual Results for Period Ending
    For year ending December-2020
    Headquarters Country
    USA
    Company Profile

    TC PipeLines LP is a Natural Gas Infrastructure company. It demand continues to increase as electrical generation, industrial sectors and residential users seek increased use of cleaner burning natural gas for their power, heating and cooling needs. The company is having more than 7,300 TC Energy employees make a positive difference in the communities where the company operates across Canada, the U.S. and Mexico. The headquarters is in USA.

    Company Website
    TC PIPELINES LP

  6. Oasis Petroleum

    World Rank (Aug-2026)
    5,323
    World Rank (Jan-05-2024)
    5,323
    World Rank (Jul-30-2023)
    5,323
    World Rank (Dec-25-2022)
    5,323
    World Rank (Jan-07-2022)
    5,323
    Market Cap (Jan-07-2022)
    2.63 Billion USD
    Annual Revenue in USD
    4,877 Million USD
    Annual Operating Income in USD
    197 Million USD
    Annual Net Income in USD
    44 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Company Profile
    Oasis Petroleum is an Independent Oil and Gas Exploration and Petroleum company. It is the majority owner of Oasis Midstream Partners formed to provide a collection of services including gas gathering and processing, saltwater gathering and disposal services, freshwater services and crude oil gathering and transport services to Oasis and third parties. The headquarters is in USA.
    Company Website
    OASIS PETROLEUM INC

  7. Talos Energy

    World Rank (Aug-2026)
    5,434
    Market Cap (Aug-2026)
    2.633 Billion USD
    World Rank (Jan-05-2024)
    6,023
    Market Cap (Jan-05-2024)
    1.819 Billion USD
    World Rank (Jul-30-2023)
    5,782
    Market Cap (Jul-30-2023)
    1.980 Billion USD
    World Rank (Dec-25-2022)
    6,232
    Market Cap (Dec-25-2022)
    1.618 Billion USD
    World Rank (Jan-07-2022)
    9,999
    Market Cap (Jan-07-2022)
    0.90 Billion USD
    Annual Revenue in USD
    1,780 Million USD
    Annual Operating Income in USD
    -560 Million USD
    Annual Net Income in USD
    -494 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile
    Talos Energy is a Offshore Energy company. It is focused on oil and gas exploration, production and operations across a range of deepwater and shallow water assets in the United States Gulf of Mexico and offshore Mexico. The headquarters is in USA.
    Company Website
    TALOS ENERGY INC

  8. Northern Oil and Gas

    World Rank (Aug-2026)
    5,469
    Market Cap (Aug-2026)
    2.610 Billion USD
    World Rank (Jan-05-2024)
    3,669
    Market Cap (Jan-05-2024)
    3.772 Billion USD
    World Rank (Jul-30-2023)
    3,768
    Market Cap (Jul-30-2023)
    3.680 Billion USD
    World Rank (Dec-25-2022)
    4,418
    Market Cap (Dec-25-2022)
    2.709 Billion USD
    World Rank (Jan-07-2022)
    6,857
    Market Cap (Jan-07-2022)
    1.74 Billion USD
    Annual Revenue in USD
    2,476 Million USD
    Annual Operating Income in USD
    246 Million USD
    Annual Net Income in USD
    39 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Northern Oil and Gas is a non operator franchise in the Bakken and Three Forks plays in the Williston Basin of North Dakota and Montana. It has targeted areas in the Williston Basin where activity levels are the highest and offer the highest rates of return on oil drilling projects. The company annual revenue 601.24 million USD. The headquarters is in USA.

    Company Website
    NORTHERN OIL AND GAS

  9. Brigham Minerals

    World Rank (Aug-2026)
    5,819
    World Rank (Jan-05-2024)
    5,819
    World Rank (Jul-30-2023)
    5,819
    Market Cap (Jul-30-2023)
    1.960 Billion USD
    World Rank (Dec-25-2022)
    5,803
    Market Cap (Dec-25-2022)
    1.802 Billion USD
    World Rank (Jan-07-2022)
    9,107
    Market Cap (Jan-07-2022)
    1.06 Billion USD
    Annual Revenue in USD
    157 Million USD
    Annual Operating Income in USD
    86 Million USD
    Annual Net Income in USD
    68 Million USD
    Annual Results for Period Ending
    For year ending December-2021
    Headquarters Country
    USA
    Company Profile

    Brigham Minerals is a Crude Oil and Natural Gas Mineral and Royalty Interest Acquisition company. It is focused on identifying minerals opportunities and applying robust evaluation approach and have transacted on thousands of deals across the 6 states. The headquarters is in USA.

    Brigham Minerals and Sitio Royalties companies were merged in 2022.

    Company Website
    BRIGHAM MINERALS

  10. NGL Energy Partners LP

    World Rank (Aug-2026)
    5,952
    Market Cap (Aug-2026)
    2.243 Billion USD
    World Rank (Jan-05-2024)
    10,275
    Market Cap (Jan-05-2024)
    0.736 Billion USD
    World Rank (Jul-30-2023)
    6,278
    Market Cap (Jul-30-2023)
    1.732 Billion USD
    World Rank (Dec-25-2022)
    10,792
    Market Cap (Dec-25-2022)
    0.650 Billion USD
    World Rank (Jan-07-2022)
    8,849
    Market Cap (Jan-07-2022)
    1.12 Billion USD
    Annual Revenue in USD
    3,156 Million USD
    Annual Operating Income in USD
    95 Million USD
    Annual Net Income in USD
    -142 Million USD
    Annual Results for Period Ending
    For year ending March-2026
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    NGL Energy Partners LP is a diversified midstream MLP that provides multiple services to producers and end users including transportation, storage, blending and marketing of crude oil, NGLs, refined products or renewable and water solutions. The company provides transport crude oil from the wellhead to refiners, wastewater from the wellhead to treatment for disposal, recycle or discharge.

    natural gas liquids from fractionators or hubs to refineries and end users, refined products from refiners to customers. The headquarters is in USA.

    Company Website
    NGL ENERGY PARTNERS LP

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