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American Petroleum Institute (API)

IHS Markit is your source for standards and specifications from the American Petroleum Institute (API), available in hardcopy or PDF download.

The American Petroleum Institute (API) is a leader in the development of petroleum and petrochemical equipment and operating standards covering topics that range from drill bits to environmental protection. These embrace proven, sound engineering and operating practices and safe, interchangeable equipment and materials. Many have been incorporated into state and federal regulations and adopted by ISO for worldwide acceptance.

API distributes more than 200,000 publications each year. The publications, technical standards, and electronic and online products are designed to help users improve the efficiency and cost-effectiveness of their operations, comply with legislative and regulatory requirements, and safeguard health, ensure safety, and protect the environment.

Interested in learning more about API certification and licensing programs?

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API ICP Certification API ICP Certification Exam Packages

API's Individual Certification Programs offer a means to improve your skills and enhance your overall job performance. Simply, easily, and effectively. API Individual Certification Programs are designed to promote self-regulation, health and safety, improved inspection capabilities, and improved management control and environmental performance. Certified inspectors are recognized as working professionals who are fully knowledgeable of industry inspection codes, and who are performing their jobs in accordance with those requirements.

IHS Markit is your source for the API standards packages essential for completing your certification exams.

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API Statistical Data API Statistical Data

Oil and gas information is available from a number of sources. But only API Data taps into the wealth of knowledge of API member and non-member companies to deliver timely, accurate and in-depth oil and natural gas information that users can count on to analyze trends and make effective decisions.

Browse API's statistical data products

API Exploration Standards Exploration & Production Safety Standards

Exploration and Production Safety is our industry's number one priority. To make our safety standards more readily available to the onshore oil and gas producing sector to assist companies in improving safety performance, API has made the following documents available for free download.

Browse the API's explorations & production safety standards

API Refining Standards Petroleum Refining Standards

Within the API Refining Program, the Committee on Refinery Equipment (CRE) is responsible for managing the refining standards program, which currently consists of approximately 75 publications. CRE develops industry documents that promote safe and proven engineering practices in the design, fabrication, installation, inspection, and use of materials and equipment in refineries and related processing facilities.

Browse API's petroleum refining standards