General-purpose, Extruder, and Epicyclic Gear Units for Petroleum, Chemical, and Gas Industry Services, Fourth Editionstandard by American Petroleum Institute, 09/01/2021

Design and Operation of Subsea Production Systems - Subsea Wellhead and Tree Equipment, Second EditionAmendment by American Petroleum Institute, 07/01/2021

Addendum to Corrosion Resistant Bolting for Use in the Petroleum and Natural Gas Industries, Second EditionAmendment by American Petroleum Institute, 11/01/2021

Evaluation of Well Perforators, Third Editionstandard by American Petroleum Institute, 07/01/2021

Errata for Materials and Fabrication of 2-1/4Cr-1Mo, 2 1/4Cr-1Mo-1/4V, 3Cr-1Mo, and 3Cr-1Mo-1/4V Steel Heavy Wall Pressure Vessels for High-temperature, High Pressure Hydrogen

Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary Tanks by Automatic Tank Gauging, Fourth EditionHandbook / Manual / Guide by

Additively Manufactured Metallic Components for Use in the Petroleum and Natural Gas Industries, First Editionstandard by American Petroleum Institute, 10/01/2021

Errata 4 to Specification for Wellhead and Tree EquipmentAmendment by American Petroleum Institute, 09/01/2021

Pipeline Control Systems Cybersecurity, Third Edition, includes Errata (2021)standard by American Petroleum Institute, 08/01/2021

Specification for Line Pipe, Fourteenth Editionstandard by American Petroleum Institute, 03/01/1955

Specification for Subsea Wellhead and Tree Equipment, Third Editionstandard by American Petroleum Institute, 10/01/2021

In-line Inspection Systems Qualification Standard, Third Editionstandard by American Petroleum Institute, 09/01/2021