World Top 100 Energy Companies List by Market Cap as of August 2026

World Top 100 Energy Companies List by Market Cap as of August 2026, World Biggest 100 Energy Companies by Market Cap, World Largest 100 Energy Companies in the World by market cap as of August 2026.

World Top Energy Companies in 2026
World Largest Energy Companies by Market Cap 2026, World Top Energy Companies by Market Cap in 2026.

  1. Helmerich & Payne

    World Rank (Aug-2026)
    3,933
    Market Cap (Aug-2026)
    4.417 Billion USD
    World Rank (Jan-05-2024)
    3,784
    Market Cap (Jan-05-2024)
    3.626 Billion USD
    World Rank (Jul-30-2023)
    3,212
    Market Cap (Jul-30-2023)
    4.560 Billion USD
    World Rank (Dec-25-2022)
    2,658
    Market Cap (Dec-25-2022)
    5.158 Billion USD
    World Rank (Jan-07-2022)
    4,844
    Market Cap (Jan-07-2022)
    3.00 Billion USD
    Annual Revenue in USD
    2,058 Million USD
    Annual Operating Income in USD
    16 Million USD
    Annual Net Income in USD
    7 Million USD
    Annual Results for Period Ending
    Sep-2022 ending year
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Helmerich & Payne is a Petroleum Drilling and technology services providing company. The headquarters is in USA.

    Company Website
    Helmerich & Payne
    Wikipedia
    Wikipedia

  2. Algonquin Power & Utilities

    World Rank (Aug-2026)
    3,947
    Market Cap (Aug-2026)
    4.392 Billion USD
    World Rank (Jan-05-2024)
    3,197
    Market Cap (Jan-05-2024)
    4.486 Billion USD
    World Rank (Jul-30-2023)
    2,677
    Market Cap (Jul-30-2023)
    5.626 Billion USD
    World Rank (Dec-25-2022)
    2,926
    Market Cap (Dec-25-2022)
    4.620 Billion USD
    World Rank (Jan-07-2022)
    1,962
    Market Cap (Jan-07-2022)
    9.53 Billion USD
    Annual Revenue in USD
    2,765 Million USD
    Annual Operating Income in USD
    500 Million USD
    Annual Net Income in USD
    -220 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Canada
    Yahoo @ NYSE
    Company Profile

    Electric utility, gas utility and water utility company with headquarters is in Ontario, Canada. Renewable energy generating company and generates wind, solar and hydro-electric power.

    Company Website
    ALGONQUIN POWER & UTILITIES CORP
    Wikipedia
    Wikipedia

  3. Thai Oil Public Company

    World Rank (Aug-2026)
    3,952
    Market Cap (Aug-2026)
    4.375 Billion USD
    World Rank (Jan-05-2024)
    3,958
    Market Cap (Jan-05-2024)
    3.412 Billion USD
    World Rank (Jul-30-2023)
    4,129
    Market Cap (Jul-30-2023)
    3.228 Billion USD
    World Rank (Dec-25-2022)
    3,611
    Market Cap (Dec-25-2022)
    3.546 Billion USD
    World Rank (Jan-07-2022)
    4,647
    Market Cap (Jan-07-2022)
    3.17 Billion USD
    Annual Revenue in USD
    9,294 Million USD
    Annual Net Income in USD
    348 Million USD
    Annual Results for Period Ending
    Dec-2021 ending year
    Headquarters Country
    Thailand
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile

    Thai Oil Public Company is a Oil Refining and Petrochemical company. It operates a highly complex refinery utilizing modern and efficient processing technologies to produce petroleum products primarily for domestic distribution and further diversifies investment into related businesses which include petrochemical products, lube base oil, ethanol, power generation as well as marine and pipeline transportation of petroleum and petrochemical products. The headquarters is in Thailand.

    Company Website
    THAI OIL PUBLIC COMPANY

  4. Valvoline

    World Rank (Aug-2026)
    3,963
    Market Cap (Aug-2026)
    4.363 Billion USD
    World Rank (Jan-05-2024)
    3,170
    Market Cap (Jan-05-2024)
    4.555 Billion USD
    World Rank (Jul-30-2023)
    2,803
    Market Cap (Jul-30-2023)
    5.315 Billion USD
    World Rank (Dec-25-2022)
    2,461
    Market Cap (Dec-25-2022)
    5.641 Billion USD
    World Rank (Jan-07-2022)
    2,711
    Market Cap (Jan-07-2022)
    6.35 Billion USD
    Annual Revenue in USD
    1,236 Million USD
    Annual Net Income in USD
    424 Million USD
    Annual Results for Period Ending
    Sep-2022 ending year
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Valvoline is a Marketer and Supplier of premium branded lubricants and Automotive Services with sales in more than 140 countries. It operates and franchises approximately 1,400 quick lube locations. The company has high mileage with MaxLife technology motor oil for engines over 75,000 miles. The headquarters is in USA.

    Company Website
    VALVOLINE INC

  5. Patterson-Uti Energy

    World Rank (Aug-2026)
    3,977
    Market Cap (Aug-2026)
    4.336 Billion USD
    World Rank (Jan-05-2024)
    3,185
    Market Cap (Jan-05-2024)
    4.517 Billion USD
    World Rank (Jul-30-2023)
    4,116
    Market Cap (Jul-30-2023)
    3.251 Billion USD
    World Rank (Dec-25-2022)
    3,532
    Market Cap (Dec-25-2022)
    3.653 Billion USD
    World Rank (Jan-07-2022)
    6,170
    Market Cap (Jan-07-2022)
    2.07 Billion USD
    Annual Revenue in USD
    2,647 Million USD
    Annual Operating Income in USD
    213 Million USD
    Annual Net Income in USD
    154 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile

    Patterson-UTI Energy provides Land Based Drilling Rigs and Significant Pressure Pumping Horsepower as well as a leading position in directional drilling and wellbore placement services that are positioned in the most active plays throughout the U.S. It provide a diverse network of drilling and pressure pumping services, directional drilling, rental equipment and technology to forge path to success and oilfield solutions deliver results that lead business into the next generation of oil and gas. The headquarters is in USA.

    Company Website
    PATTERSON-UTI ENERGY INC

  6. Shandong Xinchao Energy Corporation

    World Rank (Aug-2026)
    3,995
    Market Cap (Aug-2026)
    4.310 Billion USD
    World Rank (Jan-05-2024)
    4,509
    Market Cap (Jan-05-2024)
    2.885 Billion USD
    World Rank (Jul-30-2023)
    5,065
    Market Cap (Jul-30-2023)
    2.420 Billion USD
    World Rank (Dec-25-2022)
    5,313
    Market Cap (Dec-25-2022)
    2.083 Billion USD
    World Rank (Jan-07-2022)
    5,507
    Market Cap (Jan-07-2022)
    2.48 Billion USD
    Headquarters Country
    China
    Yahoo @ Shanghai
    Company Website
    SHANDONG XINCHAO ENERGY CORPORATION

  7. Cosmo Energy Holdings

    World Rank (Aug-2026)
    4,030
    Market Cap (Aug-2026)
    4.260 Billion USD
    World Rank (Jan-05-2024)
    3,831
    Market Cap (Jan-05-2024)
    3.566 Billion USD
    World Rank (Jul-30-2023)
    4,675
    Market Cap (Jul-30-2023)
    2.711 Billion USD
    World Rank (Dec-25-2022)
    4,915
    Market Cap (Dec-25-2022)
    2.324 Billion USD
    World Rank (Jan-07-2022)
    7,041
    Market Cap (Jan-07-2022)
    1.66 Billion USD
    Annual Revenue in USD
    17,808 Million USD
    Annual Net Income in USD
    1,013 Million USD
    Annual Results for Period Ending
    Mar-2022 ending year
    Headquarters Country
    Japan
    Yahoo @ Tokyo
    Company Profile
    Cosmo Energy Holdings is a management of subsidiaries involved in oil ranging from upstream to downstream and other businesses company. The company annual revenue is 2,233 billion JPY and annual net income is 85.9 billion JPY as on 2021. The headquarters is in Japan.
    Company Website
    COSMO ENERGY HOLDINGS

  8. Calumet Specialty Products Partners

    World Rank (Aug-2026)
    4,069
    Market Cap (Aug-2026)
    4.195 Billion USD
    World Rank (Jan-05-2024)
    7,011
    Market Cap (Jan-05-2024)
    1.417 Billion USD
    World Rank (Jul-30-2023)
    7,543
    Market Cap (Jul-30-2023)
    1.279 Billion USD
    World Rank (Dec-25-2022)
    8,238
    Market Cap (Dec-25-2022)
    1.028 Billion USD
    World Rank (Jan-07-2022)
    8,524
    Market Cap (Jan-07-2022)
    1.20 Billion USD
    Annual Revenue in USD
    4,686 Million USD
    Annual Operating Income in USD
    134 Million USD
    Annual Net Income in USD
    -161 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    USA
    Yahoo @ Nasdaq
    Company Profile
    Calumet Specialty Products Partners manufacturers, formulates and markets a diversified slate of specialty branded products to customers in various consumer-facing and industrial markets company. It produces nearly 3,400 unique specialty products used in the development of the world’s most trusted brands and products are available in more than 90 countries across the world; serving over 2,700 customers globally. The headquarters is in USA.
    Company Website
    CALUMET SPECIALTY PRODUCTS PARTNERS

  9. Comstock Resources

    World Rank (Aug-2026)
    4,115
    Market Cap (Aug-2026)
    4.128 Billion USD
    World Rank (Jan-05-2024)
    4,993
    Market Cap (Jan-05-2024)
    2.470 Billion USD
    World Rank (Jul-30-2023)
    3,929
    Market Cap (Jul-30-2023)
    3.474 Billion USD
    World Rank (Dec-25-2022)
    3,723
    Market Cap (Dec-25-2022)
    3.408 Billion USD
    World Rank (Jan-07-2022)
    6,293
    Market Cap (Jan-07-2022)
    2.00 Billion USD
    Annual Revenue in USD
    3,628 Million USD
    Annual Operating Income in USD
    2,281 Million USD
    Annual Net Income in USD
    1,124 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    USA
    Yahoo @ NYSE
    Company Profile

    Comstock Resources is a Independent Natural Gas Producer company. The Company has almost 2,000 drilling locations on its Haynesville or Bossier shale acreage and have drilled a total of 252 wells using the enhanced drilling and completion design and these wells had an average per well initial production rate of 23 MMcf per day. The headquarters is in USA.

    Company Website
    COMSTOCK RESOURCES

  10. Qatar Electricity & Water Company

    World Rank (Aug-2026)
    4,116
    Market Cap (Aug-2026)
    4.126 Billion USD
    World Rank (Jan-05-2024)
    2,750
    Market Cap (Jan-05-2024)
    5.424 Billion USD
    World Rank (Jul-30-2023)
    2,690
    Market Cap (Jul-30-2023)
    5.591 Billion USD
    World Rank (Dec-25-2022)
    2,570
    Market Cap (Dec-25-2022)
    5.376 Billion USD
    World Rank (Jan-07-2022)
    3,218
    Market Cap (Jan-07-2022)
    5.13 Billion USD
    Annual Revenue in USD
    748 Million USD
    Annual Operating Income in USD
    230 Million USD
    Annual Net Income in USD
    470 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Qatar
    Yahoo @ Qatar
    Company Profile
    Electric Utility and Water Utility company with headquarters is in Doha, Qatar.
    Company Website
    QATAR ELECTRICITY & WATER COMPANY

Share