Illinois Oil Well Project

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Oil well projects in Illinois have recorded several oil and or natural gas bearing formations. wells drilled through almost 6,000 feet, have penetrating a variety of formations. A distinction between which of the following formations – and their associated depths – are commercially will not be disclosed.

Hydrocarbon-bearing formations in this area include:

Oil and Natural Gas Formation Depths:

  • Menard Oil Formation 2268 ft
  • Vienna/Golconda 2250 ft
  • Barlow 2621 ft
  • Benoist 2749 ft
  • Aux Vases Oil Formation 3116 ft
  • Rosiclare Oil Formation 3158 ft
  • Fredonia 3250 ft
  • Salem 3766 ft
  • Ullin Oil Formation 4195 ft
  • Springville 5037 ft
  • Hannibal 4807 ft
  • Sweetland Creek Oil Formation 5060 ft
  • Blocher 5202 ft
  • Lingle 5159 ft
  • Clear Creek 5268 ft
  • Backbone 5802 ft
  • Grassy Knob 5989 ft

Here’s a little more background information on some of these formations:

-The Illinois Basin covers Illinois, Western Kentucky and Western Indiana.

- The Waltersburg Sandstone is similar to the Vienna and is part of the Upper Chesterian Group of the Chesterian Series of the Mississippian System. It has been known to bear lifeforms that are associated with the creation of rich hydrocarbons, like crude oil and natural gas.

- The Menard Limestone was classified in 1913 as being part of Upper Chesterian Group of the Chesterian Series of the Mississippian System. This structure is very similar to the Kinkaid and can be confused as such by inexperienced oil and gas professionals.

- The Aux Vases Sandstone is a formation which is found in the Chester Series, typically in Southwestern Illinois and normally absent in Kentucky. This formation is part of the Lower Chester Group of the Chester Series of the Mississippian System.

- The Rosiclare has similar characteristics with the Ste Genevieve and O’hara formations and is also classified as being part of the Meramec Group of the Iowa Series of the Mississippian System.

- Ullin Shale formations are associated with mid-Mississippian (late Tournaisian through early Visean) carbonate bodies with lime mudstone-wackestone core facies flanked by dipping crinoid-bryozoan packstone beds. These structures are morphologically similar to reef mounds, such as those in the silurian carbonates of the Illinois Basin, but they are missing the fossil remains from organisms that are believed to be responsible for creating coral structures.

- The Springville Shale is part of the Mississippian System of Southern Illinois. Although the precise age of these formations has been debated, the formation commonly has been referred to the Kinderhook series. This shale is a non-fossiliferous formation and has also been referred to as the Chouteau and Hannibal formations of the Kinderhook Age.

-The Sweetland Creek formation is thought to be part of the Middle Devonian Strata of the Devonian Series. It has been thought of being a major source rock for the Illinois Basin.

* The photos above do not represent any specific locations, projects, or company and are shown for visual purposes only. This is not a project for sale or a solicitation to purchase any oil wells for sale or natural gas wells for sale. This is not a presentation or offer to sell securities or to sell any other product whatsoever. This post is only for informational purposes to aid individuals who wish to develop oil and gas assets in the southern part of this state.

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