Iadc Ddr (international Association of Drilling Contractors Daily Drilling Report)

A charge issued by an operator or general contractor to a subcontractor for costs incurred due to defective work, delays, or failure to meet contractual obligations.

The process a prime contractor or operator uses to review, approve, and finalise invoices before releasing payment to subcontractors. Understanding the settling system helps subs forecast cash flow and avoid payment delays. Timelines vary widely between clients, so confirm the cycle before mobilising.

The total value of contracted work that has not yet been completed. Used by bonding companies to assess contractor capacity and risk.

A pricing model where work is billed per unit completed (per meter drilled, per cubic meter hauled, per joint welded, etc.).

The seasonal period when thawing ground and flooding restrict heavy equipment access to remote job sites. For subcontractors, it typically means project delays, suspended haul routes, and reduced billable work. Plan cash flow carefully to cover the slow period.

A disconnect between what a subcontractor quoted and what the client expects to pay for. This often surfaces during invoicing when scope, rates, or billing terms were not clearly agreed upon upfront. It can delay payments and strain relationships with prime contractors.

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.

Post-Completion Warranty and Punch Work: Protecting Your Margins After the Job Ends

Warranty walks, punch lists, and post-completion callbacks eat into subcontractor margins. Learn how MSA warranty clauses work, when you can push back on mobilization costs, and how to document your way out of disputes.

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.