VFD (Variable Frequency Drive)

Natural gas composed almost entirely of methane, with minimal liquid hydrocarbons. Subcontractors working dry gas sites face simpler handling requirements but often leaner margins than wet gas projects. Expect lighter equipment specs and fewer fluid management scopes.

The process of injecting produced water from oil and gas operations into approved underground formations. Subcontractors may operate or service SWD facilities, including pump maintenance, wellbore work, and fluid hauling. Understanding SWD volumes and schedules helps crews plan trucking, pit management, and injection equipment needs.

A company that provides specialized services to oil and gas operators, such as drilling, completions, workover, transportation, or maintenance. Also called oilfield services (OFS).

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 structural anchor or connection point used to secure equipment, pipelines, or wellheads back to an existing infrastructure system, commonly referenced in subcontractor scopes of work when connecting new installations to live or existing lines. Subcontractors should confirm tieback specifications and isolation procedures clearly in their contracts, as this work often involves elevated risk and may require additional certifications or permits.

Land-based areas leased or licensed by operators for exploration and production activities. For subcontractors, it defines where field work is scoped, mobilised, and contracted. Acreage size and location directly affect crew logistics, travel costs, and service demand.

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.