Tie-In

Specialty chemicals injected into wells and pipelines to control corrosion, scale, paraffin, and hydrates during oil and gas production. Subcontractors handle storage, injection system maintenance, and chemical dosing as part of production operations contracts. Proper handling certifications and spill containment protocols are typically required on-site.

A preliminary document outlining the key commercial terms agreed between parties before a formal contract is finalised. For subcontractors, it signals serious intent but is not always legally binding. Avoid mobilising crews or purchasing materials based solely on an HoA.

When a larger contractor or service company purchases a smaller subcontractor to expand its capabilities or regional footprint. For field crews, this often means changes to payroll systems, safety programmes, or preferred vendor lists. Existing contracts may be absorbed or renegotiated under the acquiring company's terms.

A notice issued by a client or prime contractor to identify qualified subcontractors before a formal tender is released. Responding helps get your company on the bidders list. It is not a contract offer, but skipping it can mean missing the actual bid.

A pipeline integrity assessment using instrumented tools (smart pigs) run through the line to detect corrosion, cracks, or defects. Subcontractors are often mobilised for pig launching, data collection, and follow-up dig verification work. ILI campaigns can drive significant short-notice field service demand.

Preliminary site preparation activities awarded before a project's main contract is finalised. For subcontractors, this means mobilising early—often under a letter of intent—to handle clearing, grading, or utility work. Scope and payment terms can be limited, so review your agreement carefully before committing resources.

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.