76431100 - Well-drilling control services

CPV code 76431100 in the EU Common Procurement Vocabulary refers to Well-drilling control services. It sits at level 5 of the CPV hierarchy as a subcategory within the 76 division. This code is nested directly under 76431000, narrowing the broader category into the specific area of well-drilling control services. As a leaf code, 76431100 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns well-drilling control services. Contracting authorities across the EU use 76431100 in TED notices and national procurement portals to signal that a tender relates to well-drilling control services.