American Petroleum Institute

API 16A

Specification for Drill-Through Equipment

420 companies listed on Oilfield Index hold API 16A (Specification for Drill-Through Equipment), issued by the American Petroleum Institute.

Categories these companies serve

Certified companies 420

“API Composite List” means the company holds an active licence for this specification on the American Petroleum Institute’s public Composite List; “claimed by vendor” means the company lists it and the list does not confirm it. Certificate files are available to signed-in members. Claim your listing to keep yours current.