Estonia Utilities Energy Sector

Energy Services of America

Market Cap: US$167.7m

Operates as a contractor and service company for the natural gas, petroleum, water distribution, automotive, chemical, and power industries in the United States.

NextNRG

Market Cap: US$156.3m

Engages in mobile fueling operations in the United States.

Amplify Energy

Market Cap: US$153.3m

Engages in the acquisition, development, exploitation, and production of oil and natural gas properties in the United States.

Aemetis

Market Cap: US$148.4m

Operates as a renewable natural gas and renewable fuels company.

SEACOR Marine Holdings

Market Cap: US$148.4m

Provides marine and support transportation services to offshore oil, natural gas, and windfarm facilities in the United States, Africa, Europe, the Middle East, Asia, and Latin America.

Prairie Operating

Market Cap: US$144.2m

An independent energy company, engages in the acquisition, development, and production of crude oil, natural gas, and natural gas liquids in the United States.

Epsilon Energy

Market Cap: US$134.5m

A North American onshore independent natural gas and oil company, engages in the acquisition, exploration, development, gathering, and production of natural oil and gas reserves.

Mammoth Energy Services

Market Cap: US$121.8m

Operates as an energy services company in the United States, Canada, and internationally.

Verde Clean Fuels

Market Cap: US$118.2m

A clean fuels company, focuses on the deployment of liquid fuels processing technology through development of commercial production plants in the United States.

Imperial Petroleum

Market Cap: US$110.8m

Provides seaborne transportation services worldwide.

Gulf Island Fabrication

Market Cap: US$110.6m

Operates as a fabricator of steel structures and modules in the United States.

American Resources

Market Cap: US$107.8m

Engages in the production of rare earth and critical mineral concentrates for the infrastructure and electrification markets.

Uni-Fuels Holdings

Market Cap: US$95.3m

Engages in the marketing, reselling, and brokerage of marine fuel products.

Leishen Energy Holding

Market Cap: US$93.9m

Through its subsidiaries, provides clean-energy equipment and integrated solutions for the oil and gas industry in the People’s Republic of China, Central Asia, and Southeast Asia.

Heidmar Maritime Holdings

Market Cap: US$93.6m

Heidmar Maritime Holdings Corp., a commercial and technical management company, operates tanker and dry-bulk vessel pools worldwide.

Stabilis Solutions

Market Cap: US$89.8m

An energy transition company, provides turnkey clean energy production, storage, transportation, and fueling solutions primarily using liquefied natural gas (LNG) to various end markets in North America.

Smart Sand

Market Cap: US$84.6m

Provides mine to wellsite proppant supply and logistics solutions to frac sand customers.

Recon Technology

Market Cap: US$84.0m

Provides hardware, software, and on-site services to companies in the petroleum mining and extraction industry in the People’s Republic of China.

NCS Multistage Holdings

Market Cap: US$80.9m

Provides engineered products and support services for oil and natural gas well completions and construction, and field development strategies in the United States, Canada, and internationally.

MIND Technology

Market Cap: US$79.9m

Provides technology to the oceanographic, hydrographic, defense, seismic, and maritime security industries in the United States, China, Norway, Turkey, Singapore, Canada, and internationally.

Drilling Tools International

Market Cap: US$77.2m

Provides oilfield equipment and services to oil and natural gas sectors in North America, Europe, and the Middle East.

Delixy Holdings

Market Cap: US$76.9m

An investment holding company, engages in the wholesale trading of crude oil and oil-based products in Southeast Asia, East Asia, and the Middle East.

MV Oil Trust

Market Cap: US$65.1m

Acquires and holds term net profits interests in the oil and natural gas properties of MV Partners, LLC.

Permianville Royalty Trust

Market Cap: US$59.4m

Operates as a statutory trust.

Cross Timbers Royalty Trust

Market Cap: US$51.8m

Operates as an express trust in the United States.

North European Oil Royalty Trust

Market Cap: US$50.8m

A grantor trust, holds overriding royalty rights covering gas and oil production in various concessions or leases in the Federal Republic of Germany.

PermRock Royalty Trust

Market Cap: US$48.9m

Operates as a statutory trust in the United States.

Vivakor

Market Cap: US$48.2m

Operates, acquires, and develops technologies and assets in the oil and gas industry in the United States and Kuwait.

Dawson Geophysical

Market Cap: US$43.4m

Engages in providing onshore seismic data acquisition and processing services in the United States and Canada.

U.S. Energy

Market Cap: US$39.8m

An independent energy company, focuses on the acquisition, exploration, and development of industrial gas, and oil and natural gas properties in the continental United States.

KLX Energy Services Holdings

Market Cap: US$30.2m

Provides drilling, completions, production, and well intervention services and products to the onshore oil and gas producing regions of the United States.

Nine Energy Service

Market Cap: US$30.2m

Operates as an onshore completion services provider that targets unconventional oil and gas resource development in North American basins and internationally.

CBL International

Market Cap: US$19.6m

A marine fuel logistics company, provides vessel refueling solutions in Malaysia, Hong Kong, China, South Korea, Singapore, and internationally.

Clean Energy Technologies

Market Cap: US$16.4m

Designs, produces, and markets clean energy products and integrated solutions that focuses on energy efficiency and renewable energy in the United States and internationally.

STAK

Market Cap: US$15.9m

Stak Inc. engages in the research, development, manufacturing, and sale of oilfield-specialized production and maintenance equipment.

Sky Quarry

Market Cap: US$11.1m

Operates as an oil production, refining, and development-stage environmental remediation company in the United States.