Illinois
Buying Land in Crawford County, Illinois
Crawford County, seat Robinson, is the birthplace of Illinois's oil industry -- a boom that started in 1905 and left a lasting mark on how land here is owned and used. A century of oil leasing means severed mineral rights and legacy well infrastructure are a real, practical due-diligence issue for a land buyer in this specific county, on top of the usual zoning and septic questions.
1905: where Illinois's oil industry began
Crawford County's most distinctive historical fact is also its most consequential for land use: this is where Illinois became an oil-producing state. Drilling that began in July 1905 on the farm of Robert Athey, northwest of Robinson, struck oil sand at a depth of 930 feet on August 5, 1905 -- a well that produced roughly 25 barrels of oil and about 1.5 million cubic feet of gas per day, and that local historical accounts describe as the opening of Illinois's oil industry. The much bigger boom came in March 1906, when the Shire No. 1 well -- located by DeWitt T. Finley about six miles southwest of Robinson and shot with nitroglycerin -- came in at roughly 2,500 barrels a day.
The economic effect was dramatic and well documented: Robinson's bank deposits reportedly jumped from $400,000 in 1905 to $2 million within six years, and period accounts describe Crawford as the wealthiest county in Illinois after Cook during the height of the boom. The Ohio Oil Company built a major, long-running operating presence in the county during this era. That history isn't just trivia -- it means Crawford County has a century-plus of oil leasing, drilling, and well infrastructure layered under and across its land, which is the practical reason mineral rights and legacy wells deserve specific attention here (see our dedicated easements page).
An ongoing industrial presence: the Robinson Refinery
The oil boom's legacy in Crawford County isn't purely historical -- Marathon Petroleum continues to operate the Robinson Refinery today, a direct continuity from the county's early-1900s origins as an oil town. That ongoing industrial presence is a meaningful part of the local economy and worth factoring into any evaluation of land use, employment base, or industrial-proximity considerations in and around Robinson.
Severed mineral rights and legacy wells: what to check before buying
Under Illinois's Severed Mineral Interest Act (765 ILCS 515), mineral rights and surface rights can be split into two entirely separate, independently transferable interests -- meaning the person selling you the surface may not own (and may never have owned) the oil, gas, or mineral rights beneath it. Illinois law also holds that where mineral rights are severed, the surface owner is generally subservient to the mineral estate owner's reasonable use of the surface for extraction, though the mineral owner may not needlessly damage the surface and the surface owner retains a right to subjacent support. In a county with Crawford's oil history, a title search turning up a decades-old severed mineral interest or an old oil and gas lease is a real, foreseeable possibility rather than an edge case -- run a full title search specifically checking for mineral reservations and existing leases, and consult an attorney experienced in Illinois oil and gas law if anything turns up.
Separately, Illinois has roughly 4,400 documented orphaned oil and gas wells statewide, concentrated in the southeastern part of the state that includes Crawford County, per IDNR's Office of Oil and Gas Resource Management. The state has ramped up plugging activity substantially using federal Bipartisan Infrastructure Law funding (two $25 million federal grants, in 2022 and again in 2024, funding several hundred well-plugging projects), after historically plugging only about 20 to 25 wells a year with state funds alone. An old, improperly plugged, or simply undocumented well on a specific parcel can pose both an environmental liability and a physical hazard -- ask the seller directly about any known wells on the property, and ask IDNR's Office of Oil and Gas Resource Management whether any documented wells (active, inactive, or orphaned) are on file for that parcel before buying.
Zoning: confirmed ordinance authority, general zoning status unresolved
Crawford County's board actively exercises ordinance-making authority -- most recently confirmed through a Commercial Solar Energy Facility Siting Ordinance (No. 2024-O-1), posted among the ordinances the county board has approved. What this research pass could not confirm from publicly available sources is whether Crawford County has separately adopted a general, comprehensive zoning ordinance under 55 ILCS 5 Division 5-12 covering unincorporated land generally (as distinct from a narrower, activity-specific siting ordinance like the solar rule). Crawford County uses Illinois's standard township form of government (it is not among the state's 17 commission-form counties), so if the county has not adopted general zoning, a township could in theory have adopted its own zoning under 60 ILCS 1 Article 110 -- but this research pass found no evidence either way.
Given this uncertainty, confirm directly with the Crawford County Clerk's office whether a general zoning ordinance applies to unincorporated land in the county, and if it does, which zoning district covers your specific parcel. If the county says it has no general zoning, ask the relevant township directly whether it has adopted its own zoning ordinance before assuming the parcel is unregulated. The City of Robinson has its own separate zoning code (the Robinson Development Code, adopted February 2002) that governs land inside city limits regardless of the county's status.
Septic, GIS, and other departments to know
Septic (private sewage disposal) permitting in Crawford County runs through the local health department under the statewide IDPH Title 77 Part 905 code, as it does throughout Illinois. For parcel records -- including confirming any recorded mineral reservation, oil and gas lease, or well-access easement -- contact the Crawford County Recorder directly; given the county's oil history, a full title search covering mineral rights specifically is worth the extra diligence here.
University of Illinois Extension supports Crawford County's agricultural sector through a multi-county Extension unit, a useful resource for farmland questions distinct from the oil/mineral-rights issues covered above.
Who to Call Before Buying Land in Crawford County
Direct WebFetch access to crawfordcountyil.org and crawfordcounty.illinois.gov was blocked by a network egress restriction throughout this research pass, and this research pass's WebSearch budget was exhausted before the county's general zoning status could be conclusively confirmed either way -- confirm current staff, hours, fees, and zoning status directly with the Crawford County Clerk before relying on this page for a specific parcel.
Planning & Zoning
Crawford County Clerk
Confirming whether Crawford County has adopted general zoning for unincorporated land, and if so, which district applies to a specific parcel.
Planning & Zoning
City of Robinson Planning & Zoning
Zoning for any parcel inside Robinson city limits, under the Robinson Development Code (adopted February 2002).
Other
Illinois Department of Natural Resources -- Office of Oil and Gas Resource Management
Checking for documented active, inactive, or orphaned oil and gas wells on a specific parcel, and understanding well-plugging responsibility.
Environmental Health
Crawford County Health Department
Private sewage disposal (septic) permitting under statewide IDPH Title 77 Part 905 standards.
Septic / Onsite Wastewater
Crawford County Health Department
Septic permit applications, site evaluations, and inspections.
Recorder / Clerk / Land Records
Crawford County Recorder
Recorded deeds, mineral reservations, oil and gas leases, and easements affecting a specific parcel -- worth checking specifically given the county's oil-leasing history.
Assessor / Property Tax
Crawford County Supervisor of Assessments
Property assessment records and questions.
Agricultural Extension
University of Illinois Extension
Agricultural land-use and horticulture guidance for Crawford County, served through a multi-county Extension unit.
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Get local guidanceTopics Specific to Crawford County
Sources
- Crawford County, Illinois USGenWeb Site: Discovery of Oil in Crawford County — Crawford County, Illinois USGenWeb Project (accessed 2026-09)
- History of the Ohio Oil Company in Crawford County — Crawford County, Illinois USGenWeb Project (accessed 2026-09)
- Crawford County's oil boom began 120 years ago — Robinson Daily News / Sun Commercial (accessed 2026-09)
- Robinson Refinery — Marathon Petroleum (accessed 2026-09)
- A Primer on Mineral Interests in Illinois Real Estate — Attorneys' Title Guaranty Fund, Inc. (accessed 2026-09)
- PROPERTY (765 ILCS 515/) Severed Mineral Interest Act — Illinois Compiled Statutes (Illinois General Assembly) (accessed 2026-09)
- Illinois' Oil Boom Left Behind a $160 Million Cleanup Bill — Governing (accessed 2026-09)
- Taxpayers could be on the hook for millions in cleanup costs from old oil and gas wells — Capitol News Illinois (accessed 2026-09)
- Illinois to Begin Work Plugging More Than 600 Orphaned Wells Through President Biden's Bipartisan Infrastructure Law — U.S. Department of the Interior (accessed 2026-09)
- Commercial Solar Energy Facility Siting Ordinance — Crawford County, Illinois Government (accessed 2026-09)
- City of Robinson Planning & Zoning — City of Robinson, Illinois (accessed 2026-09)
Last reviewed 2026-09