Irish Tech Energy Sector

SEACOR Marine Holdings

Market Cap: US$203.4m

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.

Gulf Island Fabrication

Market Cap: US$189.1m

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

Energy Services of America

Market Cap: US$181.7m

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

FutureFuel

Market Cap: US$150.7m

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

Aemetis

Market Cap: US$136.6m

Operates as a renewable natural gas and renewable fuels company.

Verde Clean Fuels

Market Cap: US$132.6m

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

DMC Global

Market Cap: US$126.0m

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

New Era Energy & Digital

Market Cap: US$125.1m

Operates as an exploration and production platform, engages in the exploration, development, and production of helium, oil and natural gas, and natural gas liquids in the United States.

MIND Technology

Market Cap: US$113.9m

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

Epsilon Energy

Market Cap: US$110.8m

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.

XCF Global

Market Cap: US$104.3m

Manufactures and sells renewable fuels in the United States.

Smart Sand

Market Cap: US$101.5m

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

Mammoth Energy Services

Market Cap: US$97.4m

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

NCS Multistage Holdings

Market Cap: US$94.9m

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.

Prairie Operating

Market Cap: US$93.0m

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

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.

Leishen Energy Holding

Market Cap: US$89.6m

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.

Drilling Tools International

Market Cap: US$87.4m

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

Heidmar Maritime Holdings

Market Cap: US$73.9m

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

Dawson Geophysical

Market Cap: US$65.2m

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

North European Oil Royalty Trust

Market Cap: US$63.3m

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

Permianville Royalty Trust

Market Cap: US$60.4m

Operates as a statutory trust.

MV Oil Trust

Market Cap: US$50.4m

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

Cross Timbers Royalty Trust

Market Cap: US$49.2m

Operates as an express trust in the United States.

PermRock Royalty Trust

Market Cap: US$46.0m

Operates as a statutory trust in the United States.

Recon Technology

Market Cap: US$41.7m

Provides hardware, software, and on-site services to companies in the petroleum mining and extraction industry in China.

U.S. Energy

Market Cap: US$40.5m

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.

Uni-Fuels Holdings

Market Cap: US$35.7m

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

KLX Energy Services Holdings

Market Cap: US$31.9m

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

Vivakor

Market Cap: US$22.1m

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

Nine Energy Service

Market Cap: US$22.0m

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

Delixy Holdings

Market Cap: US$17.0m

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.

CBL International

Market Cap: US$13.1m

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

Sky Quarry

Market Cap: US$9.4m

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

Marine Petroleum Trust

Market Cap: US$8.8m

Together with its subsidiary, Marine Petroleum Corporation, operates as a royalty trust primarily in the United States.

Mesa Royalty Trust

Market Cap: US$8.7m

Owns overriding royalty interests in various oil and gas producing properties in the United States.