Report of Eastern/Western Hemisphere Production of Casing, Tubing, and Drill Pipe
standard by American Petroleum Institute, 11/01/1999

Specifications for Steel and Iron Pipe for Oil Country Tubular Goods, 1st Edition
standard by American Petroleum Institute, 10/20/1924

Engine Oil Licensing and Certification System, 15th Edition ***Historical*** Contact API Directly for Current Edition
standard by American Petroleum Institute, 04/01/2002

Safe Operating Guidelines for Vacuum Trucks in Petroleum Service
standard by American Petroleum Institute, 03/01/1999

Specification for Wellhead and Tree Equipment, Twenty-First Edition, Includes Errata 1 (2019), Errata 2 (2020), Errata 3 (2020), Errata 4 (2021), Addendum 1 (2020), Addendum 2 (2021), and Addendum 3 (2022)
standard by American Petroleum Institute, 10/31/2018

Measurement and Sampling of Cargoes on Board Tank Vessels Using Closed and Restricted Equipment, First Edition
Handbook / Manual / Guide by American Petroleum Institute, 05/01/2009

Recommended Practice for Basic Inspection Requirements – New Pipeline Construction, First Edition
standard by American Petroleum Institute, 07/01/2013

Plate Heat Exchangers for General Refinery Services, Second Edition
standard by American Petroleum Institute, 11/01/2001

Marine Measurement: Guidelines for Determining the Fullness of Pipelines Between Vessels and Shore Tanks
Handbook / Manual / Guide by American Petroleum Institute, 08/01/1994

API Standards 620, 650, and 653 Interpretations — Tank Construction and In-Service Inspection – Answers to Technical Inquiries
standard by American Petroleum Institute, 11/01/1997