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IndustryGlossary Term

Legacy Site

An older facility or work location operating on outdated infrastructure, systems, or equipment.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.

Related Terms

Working Interest

Industry

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.

Easement

Industry

A legal right allowing access to land owned by someone else for a specific purpose, such as running pipelines or power lines. Subcontractors must confirm easement boundaries before mobilising equipment or breaking ground. Working outside easement limits can trigger legal liability and project shutdowns.

Run-Life

Industry

The expected operational lifespan of a downhole tool or piece of equipment before it requires servicing or replacement. For subcontractors, run-life directly affects rental billing cycles, maintenance scheduling, and equipment mobilisation costs. Shorter run-lives can erode margins if replacement or redress costs aren't priced into the contract.

Cementing

Industry

The process of pumping cement slurry into a wellbore to seal the casing and isolate formation zones. Subcontractors may be hired to provide cementing crews, pumping equipment, or bulk material handling. It is a critical well integrity step with strict regulatory and operator specifications.

Gigafactory

Industry

A large-scale manufacturing facility producing batteries or energy components, often for EV or renewable projects. These sites generate major subcontracting opportunities in electrical, civil, and mechanical trades. Expect large crew mobilisations, tight schedules, and industrial construction workflows.

Tubular Running

Industry

The process of installing pipe, casing, or tubing strings into a wellbore during drilling or completion operations. Subcontractors providing tubular running services supply specialised crews and equipment such as power tongs and elevators. Accurate job scoping is critical, as rig time is costly and delays directly affect invoicing and contract performance.

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