Ground Disturbance

An emissions control device fitted to diesel-powered equipment that traps soot and particulate matter from exhaust. Subcontractors must ensure DPFs are maintained and operational to meet Tier 4 emissions requirements on regulated job sites. Failing inspections or bypassing filters can result in equipment being pulled from service.

A government-issued authorisation required before drilling or servicing a well can begin. Subcontractors should confirm a valid permit is in place before mobilising crews or equipment. Work started without one can result in shutdowns, fines, or liability for the operator and service company.

The controlled burning of associated gas during normal production operations, not caused by emergencies or equipment failure. Subcontractors working on-site must follow strict protocols during flaring events. Expect potential work stoppages or exclusion zones that affect crew access and scheduling.

Designated facilities licenced to store hazardous materials such as fuel, chemicals, or drilling fluids under strict regulatory approval. Subcontractors must verify their storage sites hold valid permits before mobilising hazardous goods to a worksite. Non-compliance can trigger project shutdowns, fines, or loss of contract eligibility.

A structured risk review that identifies hazards in a process or worksite before operations begin. Subcontractors are often required to participate or submit supporting documentation. Your crew's task-specific risks may be reviewed and built into site safety plans.

An independent inspector or agent hired by an operator or owner to verify that field work meets contract specifications. They are not your direct client but hold authority to approve, reject, or halt work on site. As a subcontractor, their sign-off is often required before progress billing is accepted.

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.