Updated and Combined Data Files:

Iowa08.xls or Iowa08.csv - Updated data for Iowa up to 2008.

Minnesota08.xls or Minnesota08.csv - Updated data for Minnesota up to 2008.

Nebraska08.xls or Nebraska08.csv - Updated data for Nebraska up to 2008.

North-Dakota08.xls or North-Dakota08.csv - Updated data for North Dakota up to 2008.

South-Dakota08.xls or South-Dakota08.csv - Updated data for South Dakota up to 2008.


README file for specific information about this data base.

Original Data Files:

N_Cent89.csv- North Central data base files from 1989 and earlier include the states of North and South Dakota, Minnesota, Iowa, and Nebraska.

N_Cent96.csv - Updates for South Dakota and Nebraska  since 1989.


Reference list for data base, Microsoft Word 6.0 format, or Reference in text format.


You may submit requests to Maria Richards for more detailed information on the wells.

If you are aware of more recent data for this area or older data that are missing, please let us know.

Disclaimer:  the well information in the two data bases has been checked for accuracy to the best of our ability.  The data came from many sources and some wells have different values for the given information.  When this occurs we often left in both values.  With a data base this size there will always be more corrections and hope that if you discover wells that need to be corrected that you will pass this information on to Maria Richards.  We would also recommend that you let us know that you are using the data base,  that way we can let you know about any future corrections.

Thank you.   mrichard@mail.smu.edu.

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