Illinois Oil and Gas Resources Interactive Map


The Illinois Oil and Gas Resources mapping project enables on-line access to a large database of over 200,000 Illinois oil and gas well records. This database has been in development for many years by the Illinois State Geological Survey. Traditionally, these well records have only been available during regular business hours at the Geological Records Unit in Champaign, Illinois.

In addition to oil and gas records from the ISGS wells database, users can view other data layers like producing horizons, samples, core analysis data, structure contours, waterflood areas, and oil fields. Through these layers the application also provides access to other resources including well summary sheets, logs, scout check tickets, core analysis reports, and oil field statistics.

Launch ILOIL

Desktop - Flash Version

The ILOIL desktop version is for use on a desktop computer or device that can run a modern web browser that can run the Adobe Flash Player such as Google Chrome, Mozilla Firefox, or Internet Explorer. The ILOIL desktop application is not available on most smartphones or tablet devices, so if you navigate to the desktop application with a smartphone you will be automatically redirected to the mobile version.

Launch the ILOIL Desktop Application

Mobile - Non-Flash Version

The mobile application was designed as a lightweight version of ILOIL that is more suitable for the smaller screens of smartphones, and does not require the Adobe Flash Player. It is a good choice if you are for some reason unable to install the Adobe Flash Player on your computer or if you are accessing the application from a smartphone or tablet.

Launch the ILOIL Mobile Application

Troubleshooting ILOIL

To view the application, the Adobe Flash Player is required. Most modern web browsers already have Adobe Flash Player embedded in them, but it may need to be enabled. Follow the instructions below for your browser to ensure that Adobe Flash Player is enabled.

Google Chrome

  1. To the left of the web address, click Lock Lock or Info View site information.
  2. At the bottom, click Site Settings.
  3. In the new tab, to the right of "Flash," click the Down arrow Down arrow and then Allow.
  4. Go back to the site and reload the page.

Mozilla Firefox

  1. Click on the Run Adobe Flash icon in the center of your browser window.
  2. In the popup with the prompt "Do you want to allow Adobe Flash to run on this site?" Click Allow.

Microsoft Internet Explorer

Use the following link for instructions for enabling Flash in Internet Explorer (IE) running on Windows 10. These instructions also work for IE on Windows 8.1.

Microsoft Edge

Use the following link for instructions for enabling Flash in the edge browser running on Windows 10.

Viewing Logs

BlueView is an application to display TIFF (Tagged Image File Format) log image raster files on a Windows system. It is specifically designed to handle the very long narrow images that logs generate.

BlueView Log Image Manipulation Software is offered for download from Schlumberger.

If you have any problems with any of the application functionality, desktop or mobile, please contact Melony E. Barrett by email ( or phone 217-333-7917