Specification for Subsurface Sucker Rod Pumps and Fittings, Third Edition
standard by American Petroleum Institute, 03/01/1963

Refinery Stream Composition Data – Update to Speciation Data in API 4723
standard by American Petroleum Institute, 12/01/2018

Specification for Line Pipe, Thirty-first Edition
standard by American Petroleum Institute, 03/01/1980

General-Purpose Steam Turbines for Petroleum, Chemical and Gas Industry Services
standard by American Petroleum Institute, 06/01/1997

Specification for Line Pipe, Fifth Edition
standard by American Petroleum Institute, 01/01/1934

Design, Operation, and Troubleshooting of Dual Gas-lift Wells, Second Edition
standard by American Petroleum Institute, 04/01/2015

Volume Correction Factors – Volume XIV – Table 53D: Generalized Lubricating Oils, Correction of Observed Density to Density at 15 Degrees Celsius. Table 54D: Generalized Lubricating Oils, Correction of Volume to 15 Degrees Celsius Against Density at 15 Degrees Celsius
Handbook / Manual / Guide by American Petroleum Institute, 01/01/1982

Pressure Vessel Inspection Code: Maintenance Inspection, Rating, Repair, and Alteration – Includes Addenda 1, 2, 3 and 4 (1999, 2000, 2001, 2003)
standard by American Petroleum Institute, 06/01/1997

Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Tanks by Automatic Tank Gauging, Fourth Edition
Handbook / Manual / Guide by American Petroleum Institute, 10/01/2021

Specification for Line Pipe, Tenth Edition
standard by American Petroleum Institute, 08/01/1946