Catenary

A structured engineering assessment identifying how equipment or piping could degrade, corrode, or fail. Subcontractors use DMR findings to scope inspection work and apply correct procedures. Ignoring DMR requirements can result in scope gaps, rework, or safety incidents.

Factory-manufactured concrete sections delivered to site ready for installation. Subcontractors handle lifting, positioning, and anchoring rather than forming and pouring. Speeds up schedules but requires certified rigging crews and heavy lift equipment.

The planned order in which tasks or scopes are completed on a job site. Subcontractors rely on sequencing to schedule crews, avoid downtime, and coordinate with other trades. Delays in sequencing often trigger cascading cost and scheduling impacts.

The handling, hauling, storage, and disposal of water used in hydraulic fracturing operations. Subcontractors often provide vacuum trucks, fluid hauling, and pit liner services across these stages. Proper documentation and disposal compliance are required to avoid liability on-site.

A formal go-ahead issued by a prime contractor or owner confirming all approvals, permits, and engineering are in place. Subcontractors should not mobilise crews or materials until this authorisation is received. Starting work without it can void contract protections and leave you liable for costs.

A formal process that prolongs the operational life of ageing assets beyond their original design lifespan. For subcontractors, it often means increased inspection, repair, and maintenance scopes. Expect stricter compliance requirements and potential for longer-term service contracts.

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.