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Industry Glossary Term

Working Interest

An ownership stake in an oil and gas lease that obligates the holder to pay a share of exploration and production costs. For subcontractors, knowing who holds working interest helps identify who is ultimately responsible for approving work orders and invoices. Operators typically hold majority working interest and are your primary point of contract.

Related Terms

Abrasive Blasting

Industry

A surface preparation method that uses high-pressure propelled media (sand, steel grit, or slag) to clean and profile metal surfaces before coating or painting. Subcontractors performing this work typically require specialised equipment, trained operators, and site-specific permits. It is common in pipeline, vessel, and structural steel maintenance scopes.

Lithium-Bearing Brine

Industry

Subsurface saltwater containing dissolved lithium, extracted from formations during drilling or dedicated mining operations. Subcontractors may encounter it on fluid handling, well servicing, or evaporation pond construction contracts. Demand for lithium is driving new project activity across western Canada and the Prairies.

Radial Conveyor

Industry

A belt conveyor mounted on a wheeled chassis that pivots in an arc to distribute bulk materials across a wide stockpile area. Subcontractors use them on aggregate, sand, and gravel sites to manage material placement without constant repositioning. They reduce manual labour and speed up site operations significantly.

Emulsion Breakers

Industry

Chemical additives used in oil and gas processing to separate water from crude oil in production streams. Subcontractors handling fluid management or chemical injection skids are often responsible for their application and dosing. Proper handling requires WHMIS (Workplace Hazardous Materials Information System) compliance and PPE protocols.

Wastewater Injection

Industry

The process of pumping produced water or other fluid waste deep into underground formations for disposal. Subcontractors operating injection pumps or wellbore equipment must meet strict provincial and federal disposal regulations. Work often requires specialised well integrity certifications and detailed fluid volume reporting.

Legacy Site

Industry

An older facility or work location operating on outdated infrastructure, systems, or equipment. Subcontractors often face non-standard conditions, ageing assets, and extra compliance requirements on these sites. Mobilisation and scoping costs can be higher due to undocumented or deteriorated site conditions.

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