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API is the premier source for petroleum industry data and information. API's data and statistics are accurate, comprehensive, timely, and quoted widely.

For pricing and ordering information on the below statistical data reports, please contact our authorized distributor, IHS, at 1-800-854-7179 or visit the API Petroleum Statistical Data Storefront on the IHS website for more information.

Your Portal for Petroleum Statistics and Information

Key statistical reports include the following:

Basic Petroleum Data Book

It provides valuable domestic and world statistical background information, beginning in most instances with 1947. Included are data on energy, reserves, exploration and drilling, production, finance, prices, demand, refining, imports, exports, offshore transportation, natural gas, Organization of Petroleum Exporting Countries, and environment.

The printed Data Book is updated and published twice a year. Each report is issued in a self-contained, bound volume and is no longer needed once the next issue is published.

Both the electronic and printed versions also include a glossary of definitions and a source list (names, telephone numbers) for references in the Data Book.

Imports and Exports of Crude Oil and Petroleum Products

Published monthly by the API, the imports report contains detailed company level data on the imports of crude oil and petroleum products. Details include: record on importer, port of entry, country of origin, recipient, destination, quantity and API gravity (except residual fuel oil), and sulfur content (for crude oil and residual fuel oil).

The imports report is based on reports published by the U.S. Department of Energy’s Energy Information Administration; however, it is presented in a more user friendly and easier reporting layout. The report is available by the second week of each month, containing data from two months earlier (e.g. August imports report is published around the second week of October). Historical data are also available in electronic format.

Inventories of Natural Gas Liquids and Liquefied Refinery Gases

Presents data on the inventory levels of ethane, propane, isobutane, normal butane, and pentanes plus. These inventories, located at natural gas plants, at refineries, at bulk terminals, and in underground storage, are grouped into eight regional areas. The report is issued at the end of each month, containing data from the prior month (e.g. August report is published at the end of September).

Quarterly Well Completion Report (QWCR)

The QWCR provides detailed information on reported drilling activity and estimates the total number of wells and footage drilled. The estimates of quarterly completions and footage are displayed by well type, well class, and quarter for the ten years prior. More detailed estimates of quarterly completions and footage are disaggregated by well type, depth interval, and quarter for the current year and two years prior. In addition, wells reported to API (not estimates) are listed on a state and regional level, disaggregated by well class, well type, and quarter, for the current year and two years prior.

Published in the first week following the end of the quarter.

Joint Association Survey on Drilling Costs (JAS)

The JAS is an annual survey that contains the only long-term source of information of detailed U.S. drilling expenditures on wells, footage, and related expenditures in the United States. An Analysis & Trends section provides detailed information and graphs about offshore and onshore wells, shale wells, coalbed methane wells, and sidetrack wells. The data presented in the U.S. Summary Tables section are broken down by well type (oil wells, gas wells, and dry holes) and by depth interval. Additionally, the data in these tables are disaggregated by well class (exploratory wells and development wells) and offshore and onshore production.

Prior year's survey is published in December of the current year.
Contact: Alexa Carlson at

Sales of Natural Gas Liquids and Liquefied Refinery Gases

This report presents the results of the annual survey jointly sponsored by the American Petroleum Institute (API), Gas Processors Association (GPA), National Propane Gas Association (NPGA), and Propane Education & Research Council (PERC). This publication reports estimated sales of propane gas broken down by end-use on a state and PADD basis. The Summary section presents the sales of butane, ethane, pentanes plus, and propane broken down by product type and PADD.

Industry-Wide Surveys

Industry-wide surveys are described briefly below. If you know you are interested in a specific survey listed below, click on the title and you can obtain a copy of any free report or contact and ordering information for other reports. Please contact Adebukola Adeiya at if you have questions about any of the industry-wide surveys.

Pipeline Strategic Data Tracking System (PSDTS)

Created in 2019, this is an effort by the Pipeline segment to collect data to support the API Pipeline strategic initiatives. The Statistical Services group created a client-based software that is dynamically linked to API through the Internet to collect the data. The Statistical Services group maintains the software and handles technical support for the effort. Contact Adebukola Adeiya at

The Survey of Occupational Injuries, Illnesses and Fatalities in the Petroleum Industry (OII)

The OII is an annual survey that collects data on Petroleum Industry Occupational Injuries, Illnesses, and Fatalities, both within the United States and internationally, as well as for both employees and contract workers. Participants are asked to submit data according to the U.S. Bureau of Labor Statistics (BLS) guidelines. The “Survey of Occupational Injuries, Illnesses, and Fatalities in the Petroleum Industry: Report to Participants” is available only to participating companies and is available through the OII database website.

Participation is voluntary and the number of participating companies varies from year to year. Therefore, the reader should exercise caution when using this data to characterize the performance of the industry as a whole.

Prior year's survey is published in April of the current year.
Contact: Alexa Carlson at

SANGEA 4.3 GHG Emissions Estimating System

SANGEA™ is an emissions estimation software tool for the oil and natural gas industry to quantify greenhouse gas (GHG) emissions and standardize emissions reporting. It is based on the 2009 API Compendium of Greenhouse Gas Emissions Methodologies for the Oil and Gas Industry and US EPA Mandatory Reporting Rule Subparts C, P, W and Y, including recent updates (RY2015) to US EPA MRR reporting requirements. The software also includes US EPA AP-42 emission factors for criteria pollutants.