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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 visit the API Statistical Data Storefront on the website of our authorized distributor, Accuris.

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.

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: Lex Rossello at

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 was an annual survey that collected 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 were 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.

An aggregate report is available for purchase through our authorized distributor, IHS Markit. Participation was 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.

OII surveys were published in April of the following year. The final iteration of the OII survey was published for calendar year 2019.

Contact: Lex Rossello 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.

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