Carbonate Formation

A massive oil tanker capable of carrying up to two million barrels of crude. Subcontractors providing marine maintenance, inspection, or coating services may be mobilised to service VLCCs at port or in dry dock. These vessels require specialised certifications and safety compliance for anyone working aboard.

A method of injecting a secondary fuel, such as natural gas or propane, into a diesel engine's air intake to supplement combustion. It reduces fuel costs and emissions on long-running field equipment. Subcontractors should verify fumigation setups meet emissions compliance requirements in their operating jurisdiction.

A centralised facility or region where hydrogen is produced, stored, and distributed at scale. For subcontractors, these projects generate long-term work in pipefitting, instrumentation, and equipment installation. Expect strict safety certifications and specialised trade requirements on site.

Mesh filters mounted on shale shakers that separate drill cuttings from drilling fluid on the rig. Subcontractors handling fluid management or solids control must track screen condition and swap them regularly. Damaged or plugged screens slow operations and can trigger downtime charges against your crew.

A designation granted by an operator or prime contractor that puts your company on an approved list for recurring work. It typically means faster bid access, less vetting paperwork, and priority callouts. Earning it usually requires meeting set safety, insurance, and performance benchmarks.

A procurement arrangement where a client awards contracts to several qualified subcontractors simultaneously. Each awarded vendor is eligible to compete for individual task orders as work is released. It creates no guaranteed volume, so subcontractors must continue bidding to secure actual revenue.

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.