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Monroe County, Ohio Wells Summary

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Total wells

10,822
Monroe County

Drill activity

—
drill dates not in our copy of this source

Monroe County contains 10,822 wells on file, with top operators including GRAYMARR LLC and G-R CONTRACTING INC.

Most recent well on record: HUNTER 1, operated by D & D OIL LLC — last updated March 2026.

County FIPS Code: 39111

Active drilling rigs · Baker Hughes snapshot, week of 2026-05-29

11 rigs across the state
1 in this area

By basin

  • 11 Utica

Drilling for

  • 10 Gas
  • 1 Oil

Monroe County well density

Every dot is one well — small blue dots are historic wells; larger orange dots are wells with activity in the last 60 days.
10,822 wells plotted · 6 active in last 60 days

Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap

Top Operators in Monroe County by total wells

GRAYMARR LLC403G-R CONTRACTING INC264STEVENS OIL & GAS LLC185Expand Operating LLC172GULFPORT APPALACHIA LLC129HOWELLS OIL & GAS121NORTHWOOD ENERGY CORP105INR OHIO LLC101Ozark Oil LLC95DIVERSIFIED PRODUCTION LLC88

Operators: Graymarr Llc, G-R Contracting Inc, Stevens Oil & Gas Llc, Expand Operating Llc, Gulfport Appalachia Llc, Howells Oil & Gas, Northwood Energy Corp, Inr Ohio Llc, Ozark Oil Llc, Diversified Production Llc.

Top Counties in Ohio most active by total wells

Compare Monroe against the other busiest counties in Ohio:

  • WASHINGTON · 15,528 wells
  • PERRY · 11,610 wells
  • MUSKINGUM · 10,451 wells
  • LICKING · 9,362 wells
  • COSHOCTON · 8,119 wells
  • NOBLE · 8,067 wells
  • MORGAN · 8,018 wells
  • HANCOCK · 7,710 wells
  • HOLMES · 7,079 wells
  • WAYNE · 6,937 wells
  • KNOX · 6,853 wells
  • MEDINA · 6,729 wells

Recent wells

Well Name Last activity Updates Operator API
HUNTER 1 2026-03-18 D & D OIL LLC 34111653950000
BLAIR HEIRS 2 2026-03-18 WILLIAMSON OIL AND GAS LLC 34111655800000
DALE MORRIS # 5 2026-03-18 MOHAWK SPARTA OIL CO 34111651950000
CREE J P & G D 7 2026-03-18 GRAYMARR LLC 34111653770000
J.F. & b. GRAY (SUSAN SMITH) # 2 2026-03-18 MILLER ISELI CO 34111655560000
BLAIR HEIRS 1 2026-03-18 WILLIAMSON OIL AND GAS LLC 34111655790000
MILAN & PODRAVAC 1 2026-03-18 HIGHMAN OIL & GAS LLC 34111651450000
BARTONSHLE ALONZO 7 2026-03-18 KEHL OIL & GAS ENTERPRISES LLC 34111651910000
I.N. DAUGHERTY 5 2026-03-18 WATTERS JOY A 34111652650000
CREE JP AND GD 9 2026-03-18 GRAYMARR LLC 34111653740000

Surface Ownership Records:

Need detailed 2026 surface ownership information for Monroe County that includes the parcel gis? GIS Parcel Data Coverage For Monroe County Ohio
Download Monroe County Parcel GIS

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