Baker Hughes is an energy technology company. The company's segments are: Oilfield Services, which provides products and services for onshore and offshore operations ranging from drilling, evaluation, completion, production, and intervention; Oilfield Equipment, which provides products and services for the subsea, offshore surface and onshore operating environments; Turbomachinery and Processing Solutions, which provides equipment and related services for mechanical-drive, compression and power-generation applications; and Digital Solutions, which includes condition monitoring, industrial controls, non-destructive technologies, measurement, sensing, and pipeline solutions.

Halliburton assists its customers throughout the lifecycle of the reservoir, from locating hydrocarbons and managing geological data, to drilling and formation evaluation, well construction and completion and optimizing production throughout the life of the asset. The company's segments are: Completion and Production, which delivers cementing, stimulation, intervention, pressure control, specialty chemicals, artificial lift and completion products and services; and Drilling and Evaluation, which provides field and reservoir modeling, drilling, evaluation and wellbore placement solutions that enable customers to model, measure, drill and optimize their well construction activities.

NexTier Oilfield Solutions is a holding company. Through its subsidiaries, the company is engaged as a land oilfield focused service company, with a set of well completion and production services across active basins. The company provides its services through its operating subsidiaries to exploration and production customers. Also, the company provides its services in several active basins in the United States, including the Permian, the Marcellus Shale/Utica, the Eagle Ford and the Bakken/Rockies. The company is organized into two segments: Completion Services, which includes Hydraulic Fracturing and Wireline Technologies; and Well Construction and Intervention Services, which includes Cementing and Coiled Tubing.

Parkd is principally engaged in developing a modular parking system. The Parkd System/technology allows for lightweight concrete modular car parks to be manufactured and constructed in a fraction of the time of current build methodology. The pre-fabricated modular system means the car park can be relocated and adapted as parking demands rise and fall.

Ranger Energy Services is a holding company. Through its subsidiaries, the company provides onshore well service rigs, wireline completion services and additional complementary services. The company's segments include: High Specification Rigs, which provides well and complementary equipment and services to facilitate operations throughout the lifecycle of a well; Completion and Other Services, which provides wireline completion services and other ancillary services; and Processing Solutions, which engages in the rental, installation, commissioning, start-up, operation and maintenance of Mechanical Refrigeration Units, Nitrogen Gas Liquid (NGL) stabilizer units, NGL storage units and related equipment.

Schlumberger provides technology for reservoir characterization, drilling, production and processing to the oil and gas industry. The company has four segments: Reservoir Characterization, which consists of the principal technologies involved in finding and defining hydrocarbon resources; Drilling, which consists of the principal technologies involved in the drilling and positioning of oil and gas wells; Production, which consists of the principal technologies involved in the lifetime production of oil and gas reservoirs; and Cameron, which consists of the principal technologies involved in pressure and flow control for drilling and intervention rigs, oil and gas wells and production facilities.