U.K. Utilities Energy Sector

Aemetis

Market Cap: US$193.2m

Operates as a renewable natural gas and renewable fuels company.

FutureFuel

Market Cap: US$179.6m

Manufactures and sells diversified chemical, bio-based fuel, and bio-based specialty chemical products in the United States.

Energy Services of America

Market Cap: US$178.5m

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

DMC Global

Market Cap: US$175.6m

Provides various products and engineered solutions for the construction, energy, industrial processing, and transportation markets worldwide.

Geospace Technologies

Market Cap: US$174.0m

Designs and manufactures instruments and equipment used in the oil and gas industry to acquire seismic data in order to locate, characterize, and monitor hydrocarbon producing reservoirs.

Epsilon Energy

Market Cap: US$162.9m

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.

Prairie Operating

Market Cap: US$153.0m

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

SEACOR Marine Holdings

Market Cap: US$147.2m

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.

Verde Clean Fuels

Market Cap: US$141.7m

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

Amplify Energy

Market Cap: US$135.9m

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

Mammoth Energy Services

Market Cap: US$128.5m

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

Gulf Island Fabrication

Market Cap: US$113.6m

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

Imperial Petroleum

Market Cap: US$105.7m

Provides seaborne transportation services worldwide.

Drilling Tools International

Market Cap: US$101.8m

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

Leishen Energy Holding

Market Cap: US$96.4m

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$94.2m

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

Stabilis Solutions

Market Cap: US$90.6m

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$87.7m

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

Delixy Holdings

Market Cap: US$80.9m

Trades in oil related products in Southeast Asia and East Asia.

NCS Multistage Holdings

Market Cap: US$75.9m

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.

Uni-Fuels Holdings

Market Cap: US$74.2m

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

American Resources

Market Cap: US$70.7m

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

MV Oil Trust

Market Cap: US$67.6m

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

MIND Technology

Market Cap: US$66.5m

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

Recon Technology

Market Cap: US$64.9m

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

Permianville Royalty Trust

Market Cap: US$60.1m

Operates as a statutory trust.

Cross Timbers Royalty Trust

Market Cap: US$58.7m

Operates as an express trust in the United States.

PermRock Royalty Trust

Market Cap: US$49.4m

Operates as a statutory trust in the United States.

U.S. Energy

Market Cap: US$47.6m

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.

North European Oil Royalty Trust

Market Cap: US$46.0m

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

Dawson Geophysical

Market Cap: US$40.9m

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

Nine Energy Service

Market Cap: US$39.0m

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

Vivakor

Market Cap: US$37.2m

Operates, acquires, and develops technologies and assets in the oil and gas industry; and offers related environmental solutions in the United States and Kuwait.

KLX Energy Services Holdings

Market Cap: US$33.4m

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

Crown LNG Holdings

Market Cap: US$29.2m

Develops and delivers tailored offshore liquefied natural gas (LNG) liquefaction and regasification terminal infrastructure solutions for harsh weather locations.

CBL International

Market Cap: US$20.9m

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