Drilling companies

Callon Petroleum Company, an independent oil and natural gas company, acquires, explores for, develops, and produces oil and natural gas properties in the Permian Basin in West Texas.

RSP Permian is an independent oil and natural gas company, which engages in the acquisition, exploration, exploitation, development, and production of unconventional oil and natural gas reserves.

Astec Industries (formerly known as Osborn) designs, engineers, manufactures, and markets equipment and components primarily for the road building, aggregate processing, geothermal, water, oil and gas, and wood processing industries.

Akastor is an oil-services investment company with a portfolio of industrial holdings, real estate and other investments.

Lahontan Gold is a company that specializes in the exploration and development of mineral properties.

MACA is a company that explores and develops mineral properties.

ProPetro Holding is a company that provides oilfield services.

Austral Resources Australia is a mining company that provides mineral and metal exploration and development services.

Mountain Province Diamonds is a mining company that provides mine exploration, drilling, and development services.

Hunting is a company that manufactures, trades, and rentals equipment for the energy industry.

IMDEX is a provider of subsurface intelligence solutions.

Phoenix Technology Services is a horizontal and directional drilling solutions provider.