Welding Pipe Lines and Related Facilities, 16th Edition
standard by American Petroleum Institute, 05/01/1983

Reconditioning of Metallic Gate, Globe, and Check Valves, Second Edition
standard by American Petroleum Institute, 12/01/2005

Rotary-Type Positive-Displacement Compressors for Petroleum, Petrochemical, and Natural Gas Industries, Fifth Edition
standard by American Petroleum Institute, 12/01/2010

Metal Plug Valves – Flanged, Threaded and Welding Ends
standard by American Petroleum Institute, 08/01/2002

Temperatures for API Cement Operating Thickening Time Tests – 1993 Report from the API Task Group on Cementing Temperature Schedules
standard by American Petroleum Institute, 05/01/1999

Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services, Fifth Edition, Includes Errata 1 and 2 (2009 and 2010)
standard by American Petroleum Institute, 12/01/2007

Recommended Practice for Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures, Fifth Edition, Includes Addendum 1 (2020) and Addendum 2 (2020)
standard by American Petroleum Institute, 02/01/2019

Pumps-Shaft Sealing Systems for Centrifugal and Rotary Pumps, Third Edition (Printed Edition Includes binder) (Includes Errata)
standard by American Petroleum Institute, 09/01/2004

Valve Inspection and Testing
standard by American Petroleum Institute, 05/01/2004

Progressing Cavity Pump Systems for Artificial Lift-Pumps, First Edition (ISO 15136-1:2009, Identical Adoption)
standard by American Petroleum Institute, 10/01/2010