Reasonable Suspicion

The U.S. federal agency that regulates the entry of workers, equipment, and materials across the Canadian-American border, which subcontractors must navigate when mobilising crews or hauling specialised equipment into U.S. job sites. Non-compliance with CBP requirements can result in delays at the border, seized equipment, or crews being turned away, making proper documentation and advance planning critical for cross-border field work.

The controlled release of gases from pipelines, vessels, or equipment during maintenance, commissioning, or decommissioning work. Subcontractors must follow site-specific venting procedures to remain compliant with environmental and safety regulations. Improper venting can result in work stoppages, fines, or removal from site.

Water extracted from the ground alongside oil and gas during production. Subcontractors handling, transporting, or disposing of it must meet strict environmental regulations. Improper management can trigger fines and halt site operations.

A physical or mechanical system that prevents uncontrolled flow of fluids from a wellbore. Subcontractors working on or near wells must verify barriers are in place before starting work. Barrier failures can trigger stop-work obligations and regulatory reporting requirements.

A formal system for isolating and de-energising equipment before maintenance or repair work begins. For subcontractors, this typically means following a client's lockout/tagout (LOTO) programme on site. Non-compliance can result in work stoppages, contract termination, or serious injury.

Safety systems and equipment that prevent workers from falling at heights above 3 metres. Subcontractors are responsible for supplying compliant gear and training before mobilising crews to site. Non-compliance can result in stop-work orders and contract liability.

When a Jobsite Incident Happens: What Field Workers Need to Know Before Signing Anything

What to do after a jobsite injury or incident, what your rights are before signing incident reports, how workers' compensation works, and how to protect yourself on multi-employer worksites.

OSHA Citations on Multi-Employer Worksites: What Subcontractors Need to Know

Learn how OSHA's multi-employer citation policy works, why subcontractors get cited for hazards they didn't create, and how to protect your company on operator-controlled job sites.

How to Read and Negotiate an Oilfield Master Service Agreement (MSA): A Subcontractor's Guide

Learn which MSA clauses actually matter for oilfield subcontractors: indemnity, insurance, payment terms, and change orders. Know what you're signing.