Cal/osha (california Division of Occupational Safety and Health)

A document outlining how land above a wellsite or pipeline corridor can be accessed and used during operations. Subcontractors must follow it to avoid disturbing restricted areas or triggering landowner disputes. Non-compliance can result in work stoppages or liability on your crew.

A summary of the financial, safety, and liability risks a subcontractor faces on a given project or contract. It helps field service companies assess whether insurance coverage, bonding, and safety protocols are adequate. Reviewing your exposure profile before mobilising can prevent costly gaps in protection.

A mandatory stop in work where a client or inspector must review and sign off before the subcontractor can proceed. Missing a hold point can void certifications or trigger costly rework. Always confirm hold points during project kickoff to avoid schedule delays.

An inspection code governing the maintenance and repair of in-service pressure vessels. Subcontractors performing vessel work must often comply with API 510 requirements and use certified inspectors. Non-compliance can result in work stoppages or contract disqualification.

A formal process where subcontractors identify and evaluate site-specific risks before work begins. It documents potential dangers, required controls, and responsible parties. Most client operators require a completed hazard assessment before issuing a work permit.

A U.S. federal environmental assessment required before major project approvals on public lands. Subcontractors may face work delays or scope changes while reviews are completed. Mobilisation schedules should account for potential NEPA-related hold periods.

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.