Greek Semiconductors Energy Sector

KLX Energy Services Holdings

Market Cap: US$32.7m

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

CBL International

Market Cap: US$26.3m

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

Nine Energy Service

Market Cap: US$22.6m

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

Sky Quarry

Market Cap: US$20.3m

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

Clean Energy Technologies

Market Cap: US$18.6m

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$17.3m

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

BP Prudhoe Bay Royalty Trust

Market Cap: US$13.7m

Operates as a grantor trust in the United States.

Mesa Royalty Trust

Market Cap: US$9.2m

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

New Era Helium

Market Cap: US$8.6m

Engages in the exploration, development, and production of helium, oil and natural gas, and natural gas liquids in the United States.

Marine Petroleum Trust

Market Cap: US$7.7m

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