The heaviest category of commercial trucks, rated at over 33,001 lbs gross vehicle weight. Common in oil and gas field work for hauling heavy equipment, frac sand, and pipe. Operators require a Class 1 licence in Canada.
Class 8
Related Terms
Remote-Site Services
IndustryWork performed at isolated locations far from urban centres, such as camps, wellsites, or pipeline corridors. Subcontractors must self-manage logistics, including equipment, consumables, and crew rotations. Mobilisation costs and travel time significantly affect how contracts should be priced.
Grid Interconnection
IndustryThe process of connecting a power generation asset to the public electrical grid. For subcontractors, it triggers specific commissioning milestones, inspections, and sign-offs. Delays in interconnection approval can directly impact project timelines and invoicing.
Voluntary Cuts
IndustryAgreed reductions in oil production by member nations, typically OPEC (Organization of the Petroleum Exporting Countries) members, to stabilise prices. For subcontractors, these cuts often trigger project deferrals, reduced scope, and slower mobilisation schedules. Budget freezes from operators frequently follow, directly impacting field service award timelines.
Rig-Released
IndustryStatus indicating a drilling rig has been formally stood down and all associated services are no longer required. For subcontractors, it triggers demobilisation, final invoice submission, and crew release. Contracts often specify notice periods and standby rates tied to this status.
LWD (Logging While Drilling)
IndustryA drilling technique that collects formation data in real time as the bit advances. Subcontractors providing LWD services operate specialised downhole tools that transmit data to surface during the drill run. Mobilisation windows are tight, so crews and equipment must be ready on short notice.
2c Resources
IndustryThe middle estimate of contingent petroleum resources that are discovered but not yet approved for development. For subcontractors, 2C resource announcements often signal future project opportunities that are not yet fully funded. Bid opportunities tied to 2C resources carry higher uncertainty and may shift significantly before contracts are awarded.
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