Intangible Drilling Costs (IDC) definition
Intangible Drilling Costs (IDC) means costs for items or services that are necessary to drill wells but do not become part of the well/wellhead after drilling is complete, e.g., site preparation costs, rig transport, rig operations (day rate, etc.), drilling fluids, formation evaluation, completion tools, perforating, site supervision services, fuel, logging, and drill bits.