Rotary Rig Count

A measurement of natural gas production or flow volume, used to describe the output capacity of a well, pipeline, or facility. Subcontractors use this figure to gauge job scale, equipment sizing, and crew requirements. Higher MMcf/d ratings typically signal larger scopes of work and longer contract durations.

Systems that use compressed air or gas to power tools, actuators, and control valves on job sites. Subcontractors working with pneumatic equipment must ensure proper pressure ratings and fittings are maintained. Common in instrumentation, pipeline, and heavy construction scopes.

A timeline that outlines when specific tools, equipment, or crews are deployed downhole or on-site during an operation, dictating when a subcontractor's services are required and for how long. For field service companies, the run schedule directly determines mobilisation timing, crew rotations, and invoiceable hours on location.

Provincial agencies in Canada that provide workplace injury insurance. Contractors must maintain WCB coverage and good standing to work on most sites.

Collectively referred to as URF, these are the subsea infrastructure components that connect wellheads to production facilities — umbilicals carry control fluids and signals, risers bring production to surface, and flowlines move product along the seabed — subcontractors are commonly engaged for their installation, inspection, maintenance, and integrity management work. Understanding the distinctions between these systems helps field crews accurately scope work orders, apply correct certifications, and bill against the right line items in offshore or subsea contracts.

The date when drilling begins on a new well. Marks the start of drilling operations.

What Is an AFE in Oil and Gas and How Does It Affect Subcontractor Payments?

An AFE (Authorization for Expenditure) controls every dollar spent on an oilfield project. Learn how it affects your billing, change orders, and cash flow as a subcontractor.