Ohio Well Data field records · 2026 survey

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Best well drillers in Hardin County, Ohio

Not a pay-to-play list: these are the 87 drilling companies with wells on record in Hardin County, ranked by wells actually drilled here — 3,037 logged wells in the Ohio Department of Natural Resources (ODNR) Division of Geological Survey water-well log database (records as of 2026-08-13). Every number links back to the public record.

87companies on record
29active since 2022
3,037wells in county record
#CompanyIn Hardin Co. since 2016All-time in countyStatewide
1 G H Bierly Inc. 204 829 4,064
2 Seismic Drilling Co. Inc. 61 169 5,783
3 Clear Water Well Drilling 61 61 683
4 Kniceley Well Drilling 26 69 3,389
5 Eaton Well Drilling Inc. 18 19 1,309
6 Ellsworth Well & Pump 15 48 1,026
7 Quinter Well Drilling LLC 7 55 12,078
8 Able Well & Pump 5 10 1,093
9 Maas Brothers Drilling 5 5 518
10 Boes Water Well Drilling 5 5 348
11 Sever Water Well Drilling 4 243 4,250
12 Kotterman Well Drilling 3 67 4,232
13 Britenstine Well Drilling 2 133 713
14 Mason Well Drilling 2 17 908
15 Central Soft Water 2 2 1,489
16 K & B Well Drilling Co. 2 2 1,837
17 Wes Britenstine Well Drilling 1 120 786
18 Eaton Well & Pump 1 23 3,329
19 Bushong Drilling 1 18 852
20 Flinner Drilling Inc. 1 1 8,459
21 Shidler & Wilder 1 1 358
22 Shulaw Well Drilling 216 425
23 Hindall (Floyd) 184 1,054
24 King (Paul) Well Drilling 121 785
25 Ellsworth (Sam) 107 714
26 Harpest Well Drilling 59 781
27 King (Eldon E) 52 443
28 Tracy (Hershel) 44 197
29 Harpest (Ron) Well Drilling 36 377
30 Clevenger Well Drilling 31 237
31 Steinman Water Well Drilling 29 523
32 King (S G) & Son 28 163
33 King Well Drilling 26 103
34 Tom Byrne Well Drilling 23 1,057
35 Huwer Drilling 13 371
36 Lotts (A E) & Son 11 665
37 Cole (Donald) 11 200
38 Bushong (Richard L) 8 215
39 Northwest Ohio Well Drilling 8 42
40 Mount Water Well Drilling 7 3,547
41 Green (Amel F) 7 999
42 Waldron Well Drilling 7 402
43 Myers (Russell E) 7 37
44 Mark Stoepfel Drilling 6 1,000
45 Union County Drilling 6 663
46 Sherman (Glen A) 6 422
47 Lotts Well Drilling 6 286
48 Shaffer (Glen) 6 256
49 Had Inc. 5 783
50 Mckee Well Drilling 5 25
51 Wiley Well Drilling Inc. 4 6,637
52 Tom Myers Well Drilling 4 47
53 Bapst Inc. 3 5,348
54 Stoepfel Drilling LLC 3 2,504
55 Arthur's Well Drilling 3 552
56 Messenger (Carl) 3 248
57 Cray (Lowell) 3 69
58 Beinhower Bros Drilling Co. 2 3,766
59 Jackson & Sons Drilling & Pump Co. 2 3,154
60 Complete Well Service 2 362
61 Bushong (Charles Burton) 2 295
62 Magness (O P) Drilling 2 278
63 G M Baker & Son 2 259
64 Baldwin Qualified Well Drilling 2 176
65 Dunbar Drilling Co. 2 85
66 Dunbar-Stark-Layne Drilling 2 83
67 Mccallister Drilling 2 48
68 Bill's Bit Service 2 47
69 Harper (W H) 2 27
70 Jamison Well Drilling Inc. 1 11,219
71 Crabtree Drilling 1 4,742
72 Curry Drilling LLC 1 1,320
73 E R Eppinger Drilling 1 206
74 Wilson (Jim) Well Drilling 1 1,464
75 Jenei Drilling Co. Inc. 1 1,390
76 Glaser Water Well Drilling 1 730
77 Dorsey (Walter R) 1 511
78 Layne Ohio (Layne Christensen) 1 346
79 Phillips Well Drilling 1 338
80 Pittman (Ray O) 1 239
81 Jackson (C W) & Sons Inc. 1 201
82 Water Systems Inc. 1 196
83 Long (T D) Drilling Co. 1 189
84 Green's Well Drilling & Water Svc 1 149
85 Boes Well Drilling LLC 1 142
86 Kuck (H J) 1 107
87 Lehman & Swartz 1 70

Ranked by wells drilled in Hardin County since 2016 (then all-time), from the full ODNR record. A ★ marks a featured sponsor — sponsors must appear in the county record to be listed, and the ranking below them is never reordered.

Who drills the most wells in Hardin County?

G H Bierly Inc. has drilled the most Hardin County wells in the recent record — 204 since 2016, 829 in the county all-time.

How many well drilling companies work in Hardin County?

87 companies in the ODNR record have drilled wells in Hardin County; 29 of them have drilled somewhere in Ohio since 2022. Smaller operators below the record threshold may also serve the area.

How deep is a typical well in Hardin County?

The median drilled depth in Hardin County is 90 ft, based on 3,166 recorded wells. Depths, water levels, and yields are on the Hardin County wells page.

Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Hardin County wells page.

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