Backcharge

The difference between your current assets and current liabilities — essentially the cash available to keep operations running. For subcontractors, it covers payroll, fuel, and equipment costs while awaiting client payment. Tight working capital is a common risk when payment terms stretch 60–90 days.

NPT (Non-Productive Time) is any period when crews or equipment are on-site but not performing billable work. This includes weather delays, equipment breakdowns, or waiting on materials. Subcontractors often absorb NPT costs unless contracts clearly define standby rates.

A variable fee added to invoices to offset rising fuel costs for equipment, vehicles, and machinery. Rates are typically tied to a published fuel index and adjusted weekly or monthly. Subcontractors should confirm surcharge terms in their master service agreements before mobilising.

A standardised daily report documenting rig operations, hours worked, and downtime on a drilling project. Subcontractors often must align their own daily reports with the IADC DDR for invoicing and performance verification. Discrepancies between your records and the DDR can delay payment or trigger billing disputes.

A contract clause where a general contractor delays paying subcontractors until the owner pays them first. This shifts financial risk downstream to subcontractors and field service companies. Review these clauses carefully, as they can significantly impact your cash flow on long projects.

When an operator returns a field ticket for correction before approval. Common causes include missing information, rate discrepancies, or insufficient documentation. Rejections delay payment and require rework.

What Happens to Subcontractor Billing When a Project Stalls, Goes Over Budget, or Never Gets Commissioned

You did the work. The project was cancelled, shelved, or never activated. Here is what subcontractors need to know about billing rights, legal remedies, and how to get paid when no one wants to discuss the invoice.

Mechanic's Lien Rights for Subcontractors: What to Do When You're Not Getting Paid

A practical guide to mechanic's lien and materialman's lien rights for oilfield and construction subcontractors in Texas, Oklahoma, and Alberta — deadlines, filing steps, and leverage tactics.

Job Costing for Field Service Companies: How to Know If You're Actually Making Money

A practical job costing guide for oilfield and construction subcontractors. Track labor, equipment, and materials per job to find profit leaks and bid smarter.