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

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.

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.

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.

Crestwood Equity Partners LP is a publicly traded master limited partnership that owns and operates midstream assets company. It operations and financial results are divided into three segments that include gathering and processing, storage and transportation and marketing, supply and logistics. The headquarters is in USA.

Energy Transfer LP has acquired Crestwood Equity Partners LP in an all-equity transaction valued at approximately $7.1 billion, including the assumption of $3.3 billion of debt in 2023.

Energy & Fuels is the U.S. producer of uranium, the fuel for carbon and emission free nuclear energy company. The headquarters is in USA.

Sinopec Shanghai Petrochemical Company is a Refining Chemical integrated Petrochemical company. It is the most important domestic producers of refined oil products, intermediate petrochemicals, synthetic resins and synthetic fibers. Petrochemicals such as ethylene, propylene, butadiene, benzene, toluene, paraxylene, PTA, acrylonitrile, ethylene glycol, ethylene oxide, C5 fraction, acetic acid and vinyl acetate etc. Headquarters is in China.

Liberty Oilfield Services is a Innovative Service company providing stimulation services to optimize well production. It focus on offering safe, efficient and high quality hydraulic fracturing and engineering services, aiming to become the vendor of choice. The headquarters is in USA.