World Top 100 Oil and Gas Companies List by Market Cap as of August 2026

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

World Top Oil and Gas Companies in 2026
World Top Oil and Gas Companies by Market Cap in 2026, World Largest Oil and Gas Companies by Market Cap in 2026.

  1. Baytex Energy Corp.

    World Rank (Aug-2026)
    4,947
    Market Cap (Aug-2026)
    3.098 Billion USD
    World Rank (Jan-05-2024)
    4,585
    Market Cap (Jan-05-2024)
    2.815 Billion USD
    World Rank (Jul-30-2023)
    3,959
    Market Cap (Jul-30-2023)
    3.446 Billion USD
    World Rank (Dec-25-2022)
    4,691
    Market Cap (Dec-25-2022)
    2.482 Billion USD
    World Rank (Jan-07-2022)
    6,531
    Market Cap (Jan-07-2022)
    1.89 Billion USD
    Headquarters Country
    Canada
    Company Profile
    Baytex Energy Corp is engaged in the acquisition, development and production of crude oil and natural gas company in the Western Canadian Sedimentary Basin and in the Eagle Ford in the United States. The company annual revenue is 732.61 million USD as on 2020. The headquarters is in Canada.
    Company Website
    BAYTEX ENERGY CORP.
    Wikipedia
    Wikipedia

  2. 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.

  3. Japan Petroleum Exploration

    World Rank (Aug-2026)
    5,020
    Market Cap (Aug-2026)
    3.023 Billion USD
    World Rank (Jan-05-2024)
    5,557
    Market Cap (Jan-05-2024)
    2.068 Billion USD
    World Rank (Jul-30-2023)
    5,992
    Market Cap (Jul-30-2023)
    1.869 Billion USD
    World Rank (Dec-25-2022)
    6,461
    Market Cap (Dec-25-2022)
    1.534 Billion USD
    World Rank (Jan-07-2022)
    8,143
    Market Cap (Jan-07-2022)
    1.29 Billion USD
    Annual Revenue in USD
    1,818 Million USD
    Annual Net Income in USD
    -226 Million USD
    Annual Results for Period Ending
    Mar-2022 ending year
    Headquarters Country
    Japan
    Yahoo @ Tokyo
    Company Profile
    Japan Petroleum Exploration explores, develops, produces and sells oil, natural gas and other energy resources and it is focusing on contract services related business operations such as drilling and electricity supply. The company annual revenue is 240,078 million JPY for year ending March 2021. The headquarters is in Japan.
    Company Website
    JAPAN PETROLEUM EXPLORATION
    Wikipedia
    Wikipedia

  4. 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

  5. Seadrill Limited

    World Rank (Aug-2026)
    5,043
    Market Cap (Aug-2026)
    3.001 Billion USD
    World Rank (Jan-05-2024)
    3,942
    Market Cap (Jan-05-2024)
    3.435 Billion USD
    Headquarters Country
    Bermuda
    Yahoo @ NYSE
    Company Profile

    Provides oil and gas drilling services and headquarters is in Bermuda.

    Company Website
    Seadrill Limited

  6. 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.

  7. Delek Group

    World Rank (Aug-2026)
    5,060
    World Rank (Jan-05-2024)
    5,060
    World Rank (Jul-30-2023)
    5,060
    Market Cap (Jul-30-2023)
    2.423 Billion USD
    World Rank (Dec-25-2022)
    4,971
    Market Cap (Dec-25-2022)
    2.292 Billion USD
    World Rank (Jan-07-2022)
    7,125
    Market Cap (Jan-07-2022)
    1.63 Billion USD
    Annual Revenue in USD
    2,442 Million USD
    Annual Net Income in USD
    439 Million USD
    Annual Results for Period Ending
    Dec-2021 ending year
    Headquarters Country
    Israel
    Company Profile
    Delek Group is a natural gas export hub company. The headquarters is in Israel.
    Facts About Company
    Delek Group company annual revenue was 11,995 million ILS and annual net income is 3,977 million ILS for year ending Dec-2022.
    Company Website
    DELEK GROUP
    Wikipedia
    Wikipedia

  8. 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

  9. Mari Petroleum

    World Rank (Aug-2026)
    5,118
    Market Cap (Aug-2026)
    2.917 Billion USD
    World Rank (Jan-05-2024)
    7,709
    Market Cap (Jan-05-2024)
    1.202 Billion USD
    Headquarters Country
    Pakistan
    Company Profile

    It is oil and gas exploration company. Headquarters is in Pakistan.

    Company Website
    Mari Petroleum

  10. 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

Share