Slip Fill

The percentage of available working hours that crews or equipment are actively billable to a client. A low utilisation rate signals idle resources draining overhead costs. Subcontractors track this metric closely to assess profitability across projects.

The transitional period between peak and slow seasons when project volumes drop and scheduling becomes unpredictable. Subcontractors often face reduced call-outs, crew utilisation gaps, and tighter margins during these windows. Common in oilsands and construction work between summer and winter campaigns.

Unpaid earnings owed to workers for hours already worked. For subcontractors, this often arises from payroll errors, misclassification, or disputed overtime on remote job sites. Unresolved back wage claims can trigger labour audits and project holdbacks.

A subcontractor's ability to supply sufficient labour, equipment, and materials to meet contract demands on time. Gaps in resource adequacy can trigger penalties or scope reductions from prime contractors. Subcontractors are often assessed on this before being awarded larger field service agreements.

When a client or prime contractor withholds earned pay from field workers or subcontractors through unpaid overtime, illegal deductions, or misclassified labour. It exposes subcontractors to legal liability if it occurs within their own crew management. Provincial labour standards apply regardless of contract wording.

A self-employed individual or company hired to complete specific work under contract, rather than as an employee. In field service, this covers most subcontractors supplying labour or specialised skills to operators and prime contractors. Independent contractors are responsible for their own taxes, insurance, and equipment.

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