Crawler Crane

A PMC is the company hired by an owner to oversee and manage an entire project on their behalf. As a subcontractor, the PMC is typically your primary point of contact for approvals, invoicing, and scope direction. They control schedule and budget, so understanding their reporting requirements is essential for getting paid on time.

A specialised subcontractor hired to perform a specific skilled trade, such as electrical, welding, or pipefitting. They are typically engaged by a general contractor rather than the project owner directly. Trade contractors are responsible for supplying their own tools, crew, and trade-specific certifications.

A project phase where construction work is ongoing while equipment or materials are still in transit to the site. Subcontractors must coordinate mobilisation and scope carefully to avoid costly downtime waiting on delayed deliveries. Billing milestones and crew schedules should account for this overlap.

A method of injecting a secondary fuel, such as natural gas or propane, into a diesel engine's air intake to supplement combustion. It reduces fuel costs and emissions on long-running field equipment. Subcontractors should verify fumigation setups meet emissions compliance requirements in their operating jurisdiction.

The formal handover point where ownership or responsibility for a measured quantity of oil, gas, or other product moves from one party to another — typically triggering billing, invoicing, or contractual obligations for subcontractors involved in metering, transport, or handling operations. Field service crews working custody transfer points must ensure measurements are accurate and fully documented, as discrepancies can directly affect client invoices and liability.

A long-term contract where a buyer commits to purchasing a set volume of product from a producer. For subcontractors, these agreements signal stable, ongoing site activity and sustained demand for field services. They often underpin project financing, making worksites more financially secure for service providers.

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.