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Service Description: This service pulls data from multiple source tables in the Illinois State Geological Survey (ISGS) wells database related to oil and gas wells and samples and cores records. This service was last updated on 3/31/2025 and contains 206749 records in the Wells layer and 56285 records in the Samples and Cores layer.

Map Name: Wells

Legend

All Layers and Tables

Dynamic Legend

Dynamic All Layers

Layers:

• Labels - Short API (12)
• Labels - Total Depth (11)
• Wells (8)
• Samples and Cores (5)

Description:

Copyright Text: Illinois State Geological Survey

Spatial Reference: 102100  (3857)


Single Fused Map Cache: false

Initial Extent:

XMin: -9940474.19131808
YMin: 4607918.831977696
XMax: -9928267.825383574
YMax: 4624602.990115332
Spatial Reference: 102100  (3857)

Full Extent:

XMin: -1.017927864147621E7
YMin: 4444688.898988375
XMax: -9684796.259792913
YMax: 5311127.436213601
Spatial Reference: 102100  (3857)

Time Info:

Time Extent:
[0201/11/21 00:00:00 UTC, 2046/05/01 00:00:00 UTC]
Time Reference: N/A

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info:

Title: Wells
Author:
Comments:
Subject: Oil and Gas Wells in Illinois
Category:
Keywords: oil,gas,wells,ILOIL,ISGS,Illinois
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: true

MaxRecordCount: 4000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 577790.554289

Max Scale: 0

Supports Datum Transformation: true



Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   QueryDomains   QueryLegends   Find   Return Updates