Heavy Crude

A detailed list of all materials, quantities, and specifications needed to complete a scope of work. Subcontractors use it to prepare accurate bids and avoid costly shortages or overruns in the field.

Refers to oil and gas or construction operations located on land, as opposed to offshore or marine environments. For subcontractors, onshore work typically means different mobilisation logistics, certification requirements, and rate structures. Most Canadian field service activity in Alberta and Saskatchewan is onshore.

A facility where oil, gas, or LNG is transferred from pipelines or storage for shipment to buyers. Subcontractors are often mobilised here for maintenance, inspection, and commissioning work. Security clearances and site-specific safety certifications are typically required.

The maximum depth reached by a drilling rig during well construction, measured from the surface to the bottom of the wellbore. For subcontractors, TD determines project scope, equipment requirements, and billing milestones as it marks the completion of the drilling phase.

A well-site service that monitors drilling fluid returns to detect hydrocarbons and analyse formation data in real time. Subcontractors provide specialised technicians and instrumentation units for this work. It is commonly scoped as a standalone package within a drilling contract.

A document created in the field that records work performed, equipment used, materials consumed, and time spent. Field tickets are the basis for invoicing and must typically be approved by the customer before payment.

How Operator Mergers and Acquisitions Affect Your Subcontract Agreements

When operators merge, get acquired, or sell assets, subcontractor agreements are caught in the middle. Learn how M&A activity affects your MSA, payment terms, vendor status, and what to do before, during, and after a deal closes.

How Rig Count Trends Affect Subcontractor Demand and What to Do About It

Rig counts are the earliest signal of where field service work is heading. Learn how to read drilling activity trends, anticipate demand shifts, and position your crew before the phone stops ringing.

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.