Polygon outlines of Oil, Gas, and Gas Storage Fields in Illinois, with attributes for field code, field name, and field type. This is intended as a general cartographic reference for petroleum-related fields in the state, and is not a comprehensive listing nor a true areal representation. Individual small polygons resulting from the automated digital mapping process may have been removed from display, potentially affecting the visualization of certain very small fields and/or isolated producing wells. A shapefile of this dataset is available for download at the <a target="_blank" href="https://clearinghouse.isgs.illinois.edu/data/geology/oil-gas-and-gas-storage-fields-illinois-2002">Illinois Geospatial Data Clearinghouse</a>.

Polygon outlines of Oil, Gas, and Gas Storage Fields in Illinois, with attributes for field code, field name, and field type. This is intended as a general cartographic reference for petroleum-related fields in the state, and is not a comprehensive listing nor a true areal representation. Individual small polygons resulting from the automated digital mapping process may have been removed from display, potentially affecting the visualization of certain very small fields and/or isolated producing wells. A shapefile of this dataset is available for download at the <a target="_blank" href="https://clearinghouse.isgs.illinois.edu/data/geology/oil-gas-and-gas-storage-fields-illinois-2002">Illinois Geospatial Data Clearinghouse</a>.