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WellCensus

Oil & gas wells in Ontonagon County, MI

1,385 catalogued wells in Ontonagon County, Michigan, from the state regulator registry and the federal orphaned-well inventory.

Dataset updated . Derived from public data sources.

At a glance

Ontonagon County, Michigan has 1,385 catalogued oil & gas wells: 3 active (0.2%), 21 plugged & abandoned (2%) and 0 documented orphans. It ranks 24th of the 81 Michigan counties WellCensus profiles by well count and holds 2% of the state's 85,673 catalogued wells.

Catalogued wells

1,385

Active

3

Plugged

21

Documented orphans

0

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

0.2% of Ontonagon County's wells are active, 17 percentage points below the Michigan share of 17%. 2% are plugged & abandoned, against 16% statewide and 47% nationally. No documented orphaned wells are recorded in Ontonagon County; Michigan as a whole has 257. The remaining 1,361 carry status codes outside those classes, such as permitted or cancelled locations.

What kinds of wells are in Ontonagon County?

By product class, 0 of the county's wells (0%) are oil wells, 0 (0%) gas wells and 0 (0%) injection wells. Statewide the oil share is 0% and the gas share 0%. The deepest total depth published for a Ontonagon County well is 27,242 ft, the deepest published anywhere in Michigan. 100% of the county's wells carry coordinates and appear on the map.

How does Ontonagon County compare with other Michigan counties?

Ontonagon County has the 24th-most catalogued wells of the 81 Michigan counties with at least 25. The median Michigan county on WellCensus has 820 wells. The largest, Otsego County, has 5,579.

Who operates wells in Ontonagon County?

23 distinct operators of record are linked to wells in Ontonagon 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 Ontonagon County, MI
WellAPI # / state IDStatusTypeOperator
Watersmeet Core WMC 121-131-00001Plugged & abandonedOther typeAnaconda Copper Company
Watersmeet Core WMC 221-131-00002Plugged & abandonedOther typeAnaconda Copper Company
Watersmeet Core WMC 321-131-00003Plugged & abandonedOther typeAnaconda Copper Company
Acnc-Tva 5491621-131-00004Other statusOther typeAmerican Copper Nickel Company & TVA
Tula Triangle TT-621-131-00006Other statusOther typeBear Creek Mining
White Pine Basin WPB-121-131-00007Other statusOther typeBear Creek Mining
White Pine Basin WPB-221-131-00008Other statusOther typeBear Creek Mining
White Pine Basin WPB-321-131-00009Other statusOther typeBear Creek Mining
White Pine Basin WPB-421-131-00010Other statusOther typeBear Creek Mining
White Pine Basin WPB-521-131-00011Other statusOther typeBear Creek Mining
White Pine Basin WPB-621-131-00012Other statusOther typeBear Creek Mining
White Pine Basin WPB-721-131-00013Other statusOther typeBear Creek Mining
White Pine Basin WPB-821-131-00014Other statusOther typeBear Creek Mining
White Pine Basin WPB-921-131-00015Other statusOther typeBear Creek Mining
White Pine Mine DDH 51721-131-00016Other statusOther typeCopper Range Company - White Pine Mine
White Pine Mine DDH 52321-131-00017Other statusOther typeCopper Range Company - White Pine Mine
Ontonagon ONT121-131-00018Other statusOther typeTexas Gulf Sulfur
White Pine21-131-00019Other statusOther typeWhite Pine Copper Company
Lake Drill Hole 121-131-00020Other statusOther typeLake Copper Company
Lake Drill Hole 821-131-00021Other statusOther typeLake Copper Company
Lake Drill Hole 521-131-00022Other statusOther typeLake Copper Company
Adventure Drill Hole 121-131-00023Other statusOther typeAdventure Mining Company
Mass Drill Hole 821-131-00024Other statusOther typeMass Copper Company
Copper Range White Pine 30C21-131-00025Other statusOther typeCopper Range Company - White Pine Mine
Copper Range White Pine 29B21-131-00026Other statusOther typeCopper Range Company - White Pine Mine

A sample of the county’s wells — every catalogued well has its own page. Browse all 1,385 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 Ontonagon County, MI?

Ontonagon County, Michigan has 1,385 catalogued oil & gas wells: 3 active, 21 plugged and 0 documented orphans.

How many orphaned wells are in Ontonagon County?

No documented orphaned wells are currently recorded in Ontonagon County, Michigan.

What share of wells in Ontonagon County are plugged?

21 of Ontonagon County's 1,385 catalogued wells (2%) are plugged & abandoned, compared with 16% across Michigan.

Which Michigan county has the most oil and gas wells?

Otsego County has the most catalogued wells of any Michigan county on WellCensus (5,579); Ontonagon County ranks 24th with 1,385.

How many companies operate wells in Ontonagon County?

23 distinct operators of record are linked to catalogued wells in Ontonagon County, Michigan.

Nearby in the Michigan rankings

About this data

Source: Michigan EGLE 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 Ontonagon County, Michigan”, https://wellcensus.com/wells/michigan/ontonagon (data as of October 10, 2026).