Mid-Continent Geological Library, Inc.

A facility of unmatched proportion containing significant historical geological data resources used for researching past exploration activities in the pursuit of new opportunities.

Collecting, Preserving, Archiving and Disseminating Geological Data



Appropriately named, the Mid-Continent Geological Library, Inc. is the premier geological data repository of the mid-continent region of the United States.  Click here to read about the history and current operations of the library.


Membership in the Mid-Continent Geological Library is open to anyone.  The library is primarily used by energy industry professionals who join on an annual membership basis, however, any member of the public is eligible to access the library either as a full access member or by paying a daily use fee.
Apply For Library Membership Here

Library Resources

Click here for a listing of the research resources available to members and other users of the MCGL.

Do you use LAS files?  We provide LAS file conversion services on a quick turnaround and at a very competitive rate per digitized curve.


Monday - Friday
8 am - 4:30 pm