Specification for Wellhead and Christmas Tree Equipment, 8th Editionstandard by American Petroleum Institute, 01/01/1971

Specification for Casing and Tubing, Ninth Edition, Includes Errata 1 (2012), Errata 2 (2016)standard by American Petroleum Institute, 07/01/2011

Pumps-Shaft Sealing Systems for Centrifugal and Rotary Pumps, Fourth Editionstandard by American Petroleum Institute, 05/01/2014

Addendum 2 to Specification for Wellhead and Christmas Tree EquipmentAmendment by American Petroleum Institute, 12/01/2008

Open Die Shaped Forgings for Use in the Petroleum and Natural Gas Industry, First Edition, Includes Errata (2013)standard by American Petroleum Institute,

Errata 1 to Specification for Line Pipe, Forty-sixth EditionAmendment by American Petroleum Institute, 05/01/2018

Specification for Fiberglass Reinforced Plastic Tanksstandard by American Petroleum Institute, 01/01/1995

Specification for the Fabrication of Structural Steel Pipestandard by American Petroleum Institute, 07/01/2001

Errata 2 (Includes Errata 1) to Specification for Subsea Pipeline Valves, Second Edition (ISO 14723:2009 Identical Adoption)Amendment by American Petroleum Institute, 11/01/2010

Addendum 3 to Welded Steel Tanks for Oil Storage, 11th EditionAmendment by American Petroleum Institute, 08/01/2011

Addendum 2-Tank Inspection, Repair, Alteration, and Reconstruction, Third EditionAmendment by American Petroleum Institute, 11/01/2005

Addendum 1 to Specification for Wellhead and Christmas Tree EquipmentAmendment by American Petroleum Institute, 02/01/2008