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WellCensus

Oil & gas wells in Brown County, IL

1,556 catalogued wells in Brown County, Illinois, from the state regulator registry and the federal orphaned-well inventory.

Dataset updated . Derived from public data sources.

At a glance

Brown County, Illinois has 1,556 catalogued oil & gas wells: 126 active (8%), 1,204 plugged & abandoned (77%) and 64 documented orphans. It ranks 27th of the 98 Illinois counties WellCensus profiles by well count and holds 0.9% of the state's 174,478 catalogued wells.

Catalogued wells

1,556

Active

126

Plugged

1,204

Documented orphans

64

What is the status of oil and gas wells in Brown County?

8% of Brown County's wells are active, 11 percentage points below the Illinois share of 19%. 77% are plugged & abandoned, against 61% statewide and 47% nationally. 6 wells (0.4%) are shut-in — unplugged but idle. 64 wells (4%) are documented orphans with no operator able to plug them, compared with 2% across Illinois and 4% nationally. The remaining 156 carry status codes outside those classes, such as permitted or cancelled locations.

What kinds of wells are in Brown County?

By product class, 261 of the county's wells (17%) are oil wells, 8 (0.5%) gas wells and 28 (2%) injection wells. Statewide the oil share is 40% and the gas share 1%. The deepest total depth published for a Brown County well is 2,330 ft, against 29,864 ft for Illinois as a whole. 100% of the county's wells carry coordinates and appear on the map.

How does Brown County compare with other Illinois counties?

Brown County has the 27th-most catalogued wells of the 98 Illinois counties with at least 25. The median Illinois county on WellCensus has 525 wells. The largest, Crawford County, has 22,961. By documented orphans it ranks 18th in Illinois.

Who operates wells in Brown County?

403 distinct operators of record are linked to wells in Brown County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.

Oil & gas wells in Brown County, IL
WellAPI # / state IDStatusTypeOperator
Well API 12-007-9003012-007-90030OrphanedUnknown—
Well API 12-007-9003912-007-90039Other statusUnknown—
May Well 112-009-00002Plugged & abandonedOther typePea Ridge Oil & Gas
Worth 112-009-00015Plugged & abandonedOther typeGoad, E. E.
Logsdon, Doris 112-009-00016Plugged & abandonedOther typeWilliams, Clyde D.
Parker, Flynt 112-009-00017Plugged & abandonedOther typeG & W Oil Co.
Bordenkricher, Charles 112-009-00019Plugged & abandonedOther typeVette, Walter
Armel 112-009-00022Plugged & abandonedOther typeWilliams, Clyde D.
Princeville Stone Company 112-009-00023Plugged & abandonedOther typeMarkwell Ray
Kerley, Claude 112-009-00024Plugged & abandonedOther typeNeal, A. W.
Langan 112-009-00025Plugged & abandonedOther typeCallihan, Mike
Salrin 112-009-00026Plugged & abandonedOther typeAleshire & Groves
Ripley 112-009-00029Plugged & abandonedOther typeFay W
Koch 112-009-00030Plugged & abandonedOther typeLevine, Sidney M.
Kroft 112-009-00031Other statusOther typeJackson, William
Kroft 212-009-00032Plugged & abandonedOther typeLevine, Sidney M.
Monahan, John 112-009-00033Plugged & abandonedOther typeMarathon Oil Company
May, Thomas 212-009-00035Plugged & abandonedOther typePea Ridge Oil & Gas
Adolf H 112-009-00037Plugged & abandonedOther typeFell Oil Trust Co
Thomas, J. #1 112-009-00038Plugged & abandonedOther typeFell Oil Trust Co
Thomas, J. 212-009-00039Plugged & abandonedOther typeFell Oil Trust Co
Thomas, W.J. 112-009-00040Plugged & abandonedOther typeCrandall & Hunt Oil
Parke, Joseph & Lizzie 112-009-00043Plugged & abandonedOther typePure Oil Company
Cox, G. Elmer 112-009-00044Plugged & abandonedOther typeMarathon Oil Company
Mt. Sterling City Well12-009-00045Other statusOther typeSimmons Jos

A sample of the county’s wells — every catalogued well has its own page. Browse all 1,556 in search → (filter by operator, status and type, then export), or find a specific well on the live map.

Frequently asked questions

How many oil and gas wells are in Brown County, IL?

Brown County, Illinois has 1,556 catalogued oil & gas wells: 126 active, 1,204 plugged and 64 documented orphans.

How many orphaned wells are in Brown County?

64 wells in Brown County, Illinois are documented orphans — unplugged with no solvent operator of record, the 18th-highest count among Illinois counties.

What share of wells in Brown County are plugged?

1,204 of Brown County's 1,556 catalogued wells (77%) are plugged & abandoned, compared with 61% across Illinois.

Which Illinois county has the most oil and gas wells?

Crawford County has the most catalogued wells of any Illinois county on WellCensus (22,961); Brown County ranks 27th with 1,556.

How many companies operate wells in Brown County?

403 distinct operators of record are linked to catalogued wells in Brown County, Illinois.

Nearby in the Illinois rankings

About this data

Source: Illinois State Geological Survey well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: WellCensus, “Oil & gas wells in Brown County, Illinois”, https://wellcensus.com/wells/illinois/brown (data as of October 10, 2026).