Ohio Well Drillers Directory
Every company that appears as the driller of record in the Ohio Department of Natural Resources (ODNR) Division of Geological Survey water-well log database, ranked by the number of wells they have drilled. 1,086 Ohio drilling companies account for 485,657 logged wells. Each profile shows the counties a company works, its well characteristics, and links to its original drilling logs — all drawn directly from the state record.
1,086drilling companies
121active since 2022
485,657wells on record
Companies with at least 25 wells on record. "Active" counts wells completed since 2022.
| # | Company | Wells | Since 2022 | Counties | Most recent |
|---|---|---|---|---|---|
| 1 | Jamison Well Drilling Inc. | 11,279 | 1,946 | 67 | 2026-09-23 |
| 2 | Keen Well And Pump | 10,275 | 1,404 | 51 | 2026-09-23 |
| 3 | Quinter Well Drilling LLC | 12,110 | 1,182 | 60 | 2026-09-26 |
| 4 | Bapst Inc. | 5,372 | 1,117 | 34 | 2026-09-22 |
| 5 | Yoder Drilling & Geothermal | 1,379 | 840 | 19 | 2026-09-25 |
| 6 | Seismic Drilling Co. Inc. | 5,799 | 803 | 41 | 2026-09-18 |
| 7 | Dillan Well Drilling Inc. | 2,892 | 778 | 17 | 2026-09-22 |
| 8 | Southwind Drilling Company | 4,295 | 750 | 20 | 2026-09-23 |
| 9 | Central Soft Water | 1,489 | 663 | 46 | 2025-12-31 |
| 10 | J Miller & Sons Drilling | 1,159 | 636 | 28 | 2026-09-23 |
| 11 | Flinner Drilling Inc. | 8,475 | 573 | 48 | 2026-09-15 |
| 12 | Mount Water Well Drilling | 3,562 | 541 | 20 | 2026-09-19 |
| 13 | Warthman Drilling Inc. | 4,423 | 540 | 26 | 2026-09-22 |
| 14 | Wiley Well Drilling Inc. | 6,647 | 511 | 21 | 2026-09-21 |
| 15 | Robert E Burrows Well Drilling | 1,630 | 509 | 12 | 2026-09-25 |
| 16 | Maas Brothers Drilling | 539 | 501 | 13 | 2026-08-21 |
| 17 | Davidson Well Drilling | 3,195 | 467 | 14 | 2026-09-17 |
| 18 | Crabtree Drilling | 4,755 | 450 | 32 | 2026-09-16 |
| 19 | G H Bierly Inc. | 4,071 | 432 | 24 | 2026-09-15 |
| 20 | Carroll's Well Drilling | 2,040 | 417 | 13 | 2026-09-17 |
| 21 | Kniceley Well Drilling | 3,403 | 403 | 18 | 2026-09-18 |
| 22 | K & B Well Drilling Co. | 1,847 | 399 | 23 | 2026-09-10 |
| 23 | Hamilton & Sons Well Drilling | 3,868 | 380 | 27 | 2026-09-23 |
| 24 | Boes Water Well Drilling | 374 | 374 | 20 | 2026-09-25 |
| 25 | Watson Well Drilling | 5,285 | 359 | 26 | 2026-08-28 |
| 26 | Eaton Well Drilling Inc. | 1,316 | 355 | 31 | 2026-09-18 |
| 27 | Able Well & Pump | 1,103 | 344 | 24 | 2026-09-15 |
| 28 | Clear Water Well Drilling | 683 | 259 | 15 | 2025-07-11 |
| 29 | J E Wright Well Drilling | 1,135 | 227 | 22 | 2026-08-24 |
| 30 | Layman Drilling LLC | 2,049 | 226 | 10 | 2026-09-08 |
| 31 | Yeager Well Drilling & Pumps | 1,397 | 217 | 11 | 2026-09-24 |
| 32 | Smith's Well Drilling LLC | 1,973 | 214 | 41 | 2026-09-16 |
| 33 | Hurley's Water Well Drilling | 803 | 213 | 17 | 2026-07-24 |
| 34 | Depew Well Drilling | 2,086 | 192 | 15 | 2026-09-21 |
| 35 | Dean's Drilling | 1,013 | 176 | 19 | 2026-09-01 |
| 36 | Dellinger Bros LLC | 1,045 | 172 | 12 | 2026-09-15 |
| 37 | Fredebaugh Well Drilling | 5,478 | 168 | 15 | 2026-08-03 |
| 38 | Ellsworth Well & Pump | 1,031 | 132 | 15 | 2026-09-14 |
| 39 | Beinhower Bros Drilling Co. | 3,771 | 131 | 31 | 2026-09-16 |
| 40 | Holman Drilling | 549 | 126 | 7 | 2026-09-11 |
| 41 | Alexander W Smith Water Well Serv | 155 | 125 | 6 | 2026-08-21 |
| 42 | Curry Drilling LLC | 1,320 | 119 | 10 | 2026-07-29 |
| 43 | Jackson Well Services Inc. | 119 | 119 | 28 | 2026-09-22 |
| 44 | American Drilling & Pump Service | 358 | 113 | 14 | 2026-07-29 |
| 45 | Duncan Drilling Co. | 1,398 | 111 | 10 | 2026-08-12 |
| 46 | Don Burrows Well Drilling | 531 | 110 | 13 | 2026-09-22 |
| 47 | Walter's Well Drilling | 1,511 | 101 | 29 | 2026-09-17 |
| 48 | Greg Rogers Enterprises | 448 | 100 | 9 | 2026-07-30 |
| 49 | Bushong Drilling | 854 | 99 | 20 | 2026-09-19 |
| 50 | Underhill Well & Pump Co. LLC | 520 | 91 | 14 | 2026-08-21 |
| 51 | Burgess Drilling Inc. | 3,564 | 88 | 13 | 2026-08-28 |
| 52 | Denny Herr Well Drilling | 654 | 86 | 9 | 2026-05-14 |
| 53 | Gregory Drilling LLC | 86 | 86 | 10 | 2026-09-17 |
| 54 | Hall And Jenkins Well Drilling | 970 | 84 | 23 | 2026-09-04 |
| 55 | Shidler & Wilder | 358 | 78 | 11 | 2026-06-16 |
| 56 | Riddle Well Drilling | 684 | 74 | 16 | 2026-09-03 |
| 57 | D & L Drilling LLC | 312 | 70 | 13 | 2026-08-06 |
| 58 | Kaufman Well Drilling Inc. | 317 | 68 | 5 | 2026-08-31 |
| 59 | Adams & Sons Pump Service Inc. | 172 | 67 | 8 | 2026-08-05 |
| 60 | Persing Water Well Drilling | 1,373 | 62 | 6 | 2026-07-06 |
| 61 | Moody's OF Dayton Inc. | 361 | 61 | 49 | 2026-07-29 |
| 62 | Griffith Drilling Co. | 857 | 60 | 19 | 2026-08-24 |
| 63 | Mason Well Drilling | 909 | 58 | 9 | 2026-07-24 |
| 64 | Cooper Water Well Drilling | 2,154 | 56 | 16 | 2026-09-01 |
| 65 | Automatic Septic & Well | 1,160 | 56 | 11 | 2026-06-19 |
| 66 | Blair Drilling & Pump Serv LLC | 593 | 55 | 14 | 2026-07-22 |
| 67 | Turner Drilling | 71 | 54 | 2 | 2025-10-22 |
| 68 | Steen Brothers Well Drilling | 371 | 53 | 5 | 2026-09-12 |
| 69 | Anderson Drilling & Pump Inc. | 2,936 | 51 | 10 | 2026-09-25 |
| 70 | Jet Water Well Drilling | 123 | 49 | 8 | 2026-05-19 |
| 71 | B Mowrey Drilling LLC | 92 | 46 | 7 | 2026-08-27 |
| 72 | G & H Well Drilling | 181 | 44 | 3 | 2025-09-10 |
| 73 | Mohr Well Drilling Inc. | 707 | 42 | 4 | 2026-05-01 |
| 74 | Speedy Drilling Co. | 2,142 | 41 | 16 | 2025-11-01 |
| 75 | Stoepfel Drilling LLC | 2,513 | 36 | 19 | 2026-08-28 |
| 76 | Civiello Drilling | 1,139 | 36 | 12 | 2023-01-28 |
| 77 | Havens & Sons Drilling | 516 | 35 | 16 | 2025-12-22 |
| 78 | Domer Water Services LLC | 146 | 34 | 6 | 2026-07-20 |
| 79 | R H Fowler Well Drilling LLC | 844 | 33 | 5 | 2025-07-07 |
| 80 | Chatfield Drilling Inc. | 50 | 33 | 4 | 2026-09-17 |
| 81 | Buckeye Well & Pump LLC | 31 | 31 | 6 | 2026-09-09 |
| 82 | Boone Water Systems Inc. | 740 | 30 | 17 | 2025-10-10 |
| 83 | Williams-Oddo Well Drilling | 349 | 30 | 9 | 2026-08-27 |
| 84 | A & G Well Drilling Inc. | 1,010 | 29 | 10 | 2026-07-10 |
| 85 | Cantrell Well Drilling | 477 | 28 | 18 | 2023-05-02 |
| 86 | Ramsey Drilling | 614 | 26 | 13 | 2026-05-08 |
| 87 | Parker Bros Well Drill OF Penn-Ohio | 417 | 25 | 8 | 2026-05-06 |
| 88 | T C Excavating | 198 | 25 | 6 | 2026-03-24 |
| 89 | Clearwater Drilling LLC | 46 | 24 | 10 | 2026-08-24 |
| 90 | Clair Well Service | 27 | 24 | 5 | 2026-08-29 |
| 91 | Taylor Well Drilling | 43 | 23 | 6 | 2024-10-01 |
| 92 | Aqua Ace Well Drilling | 93 | 21 | 3 | 2025-12-15 |
| 93 | Tedrow Water Well Drilling | 577 | 19 | 8 | 2025-09-10 |
| 94 | A & H Bevard Water Well Service | 45 | 18 | 6 | 2026-07-02 |
| 95 | Arch's Well & Pump Service | 313 | 17 | 5 | 2024-02-29 |
| 96 | Gard's Water Well Drilling | 160 | 14 | 7 | 2025-10-14 |
| 97 | Blazek Well Drilling | 1,037 | 13 | 5 | 2025-07-30 |
| 98 | Williams (Nick) Drilling | 320 | 13 | 11 | 2026-04-21 |
| 99 | Harpest Well Drilling | 781 | 12 | 16 | 2023-11-08 |
| 100 | Steve Nethers Drilling | 151 | 12 | 5 | 2025-07-28 |
| 101 | Valley Well & Pump Service Inc. | 1,409 | 11 | 19 | 2024-04-02 |
| 102 | Harley Drilling & Pumps Ltd | 1,156 | 11 | 9 | 2026-08-05 |
| 103 | Max Herr Well & Pump Service LLC | 2,178 | 10 | 7 | 2026-08-14 |
| 104 | Stage Inc. (Dba R C Barry) | 1,117 | 10 | 20 | 2022-09-30 |
| 105 | Minnix Water Systems Inc. | 295 | 10 | 22 | 2026-06-01 |
| 106 | Layne Christensen Co. | 33 | 10 | 14 | 2025-02-18 |
| 107 | Quality Water Systems | 2,920 | 9 | 18 | 2023-09-22 |
| 108 | Huwer Drilling | 371 | 9 | 13 | 2024-05-02 |
| 109 | L M Kettler Inc. | 38 | 9 | 3 | 2025-12-22 |
| 110 | Aces Well Service | 35 | 9 | 7 | 2026-06-18 |
| 111 | Donamarc Water Systems Co. | 2,419 | 8 | 19 | 2026-03-02 |
| 112 | Gregory Well Drilling | 53 | 8 | 8 | 2023-01-11 |
| 113 | Mock Well Drilling | 1,220 | 7 | 8 | 2023-05-16 |
| 114 | Davis Drilling | 415 | 7 | 28 | 2024-08-05 |
| 115 | E R Eppinger Drilling | 206 | 7 | 10 | 2026-03-05 |
| 116 | Bonecutter Drilling Co. | 64 | 7 | 4 | 2026-07-01 |
| 117 | Streetsboro Sales & Service | 2,180 | 6 | 12 | 2024-09-13 |
| 118 | Had Inc. | 784 | 6 | 35 | 2025-08-19 |
| 119 | Woodworth Drilling & Wtr Systems | 466 | 5 | 13 | 2025-08-27 |
| 120 | Bjaam Environmental Inc. | 156 | 5 | 27 | 2025-03-11 |
| 121 | Williams Drilling Co. | 65 | 5 | 8 | 2023-02-24 |
| 122 | Kimball Well Drilling | 2,594 | 3 | 15 | 2022-06-23 |
| 123 | Vernon Gregory Well Drilling | 1,201 | 3 | 16 | 2023-05-11 |
| 124 | Ohio Drilling Company | 410 | 3 | 42 | 2026-06-10 |
| 125 | Holman (Dwight) Drilling | 1,708 | 2 | 15 | 2022-02-16 |
| 126 | Patriot Drilling | 470 | 2 | 11 | 2022-07-05 |
| 127 | National Water Services (Lanc) | 91 | 2 | 28 | 2022-07-21 |
| 128 | Wayne Drilling | 40 | 2 | 6 | 2024-09-18 |
| 129 | Ortman Drilling Inc. | 26 | 2 | 10 | 2022-12-13 |
| 130 | Jackson & Sons Drilling & Pump Co. | 3,154 | 1 | 58 | 2023-02-21 |
| 131 | Landrum Drilling & Pump | 299 | 1 | 9 | 2025-03-31 |
| 132 | Lauderman Well Drilling | 154 | 1 | 3 | 2022-06-24 |
| 133 | Phillips Drilling Co. | 141 | 1 | 15 | 2023-06-30 |
| 134 | Roux's Water Well Drilling | 72 | 1 | 9 | 2022-10-02 |
| 135 | Sever Water Well Drilling | 4,265 | — | 23 | 2017-12-13 |
| 136 | Kotterman Well Drilling | 4,232 | — | 13 | 2016-12-28 |
| 137 | R C Barry Company | 3,824 | — | 26 | 2001-12-28 |
| 138 | Plummer & Sons | 3,365 | — | 15 | 1999-03-16 |
| 139 | Eaton Well & Pump | 3,329 | — | 20 | 2018-02-03 |
| 140 | R G Stockert Drilling Co. | 3,130 | — | 16 | 2013-05-29 |
| 141 | Pugh Well Drilling | 2,961 | — | 6 | 2021-01-04 |
| 142 | Mullet Drilling Company Inc. | 2,605 | — | 25 | 2016-03-17 |
| 143 | Tibboles Well Drilling Inc. | 2,542 | — | 10 | 2013-08-23 |
| 144 | Saltzgaber Drilling Co. | 2,527 | — | 11 | 1995-10-28 |
| 145 | Fowler Drilling Inc. | 2,496 | — | 6 | 1999-06-29 |
| 146 | Robert E Smith Drilling | 2,483 | — | 17 | 2020-11-20 |
| 147 | Doug Adams Well Drilling | 2,323 | — | 11 | 2008-03-12 |
| 148 | Ayers Well Drilling | 2,270 | — | 9 | 2020-01-17 |
| 149 | Bell Well Drilling Inc. | 2,095 | — | 11 | 2021-04-15 |
| 150 | Inman Well Drilling | 1,994 | — | 5 | 2003-09-26 |
| 151 | Mckay & Gould Drilling Inc. | 1,993 | — | 15 | 2018-12-20 |
| 152 | Pugh (L E) | 1,908 | — | 7 | 2020-11-19 |
| 153 | Freed Water Well Drilling | 1,755 | — | 11 | 2013-05-08 |
| 154 | Lower Well Drilling Co. | 1,726 | — | 6 | 2013-11-11 |
| 155 | White Well Drilling | 1,710 | — | 10 | 2010-10-12 |
| 156 | C E Burrows & Sons | 1,701 | — | 10 | 2011-11-22 |
| 157 | Short Drilling | 1,580 | — | 15 | 2009-04-27 |
| 158 | Wilson (Jim) Well Drilling | 1,464 | — | 34 | 2014-04-04 |
| 159 | Barry (R C) | 1,392 | — | 20 | 2007-10-30 |
| 160 | Jenei Drilling Co. Inc. | 1,390 | — | 16 | 2012-06-08 |
| 161 | Templeton Well Drilling | 1,364 | — | 7 | 2020-08-14 |
| 162 | Sprowls Drilling Co. | 1,348 | — | 43 | 2004-12-03 |
| 163 | Graham Water Services | 1,347 | — | 7 | 2011-06-30 |
| 164 | Johnson Hardware Co. | 1,335 | — | 8 | 1999-01-04 |
| 165 | Plummer-Mcdannald Drilling | 1,333 | — | 13 | 1998-11-28 |
| 166 | Hardman Drilling | 1,288 | — | 10 | 2017-02-17 |
| 167 | Bihn Well Drilling | 1,288 | — | 4 | 1991-09-28 |
| 168 | Thomas Well Drilling | 1,244 | — | 14 | 2001-04-30 |
| 169 | Paul W Wright Drilling | 1,236 | — | 22 | 2013-05-13 |
| 170 | Garrison (Clay P) | 1,192 | — | 10 | 1991-05-25 |
| 171 | Economy Well Drillers | 1,192 | — | 16 | 2012-10-29 |
| 172 | Crowner Drilling Inc. | 1,190 | — | 15 | 2019-11-28 |
| 173 | Gobel Well Drilling | 1,184 | — | 15 | 2017-02-05 |
| 174 | Tnt Water Well Inc. | 1,128 | — | 4 | 2014-04-25 |
| 175 | Waltz Everett & Co. Inc. | 1,124 | — | 16 | 1987-08-10 |
| 176 | Collins Well Drilling | 1,116 | — | 7 | 1997-02-22 |
| 177 | Bennett Drilling Co. | 1,074 | — | 14 | 1999-04-20 |
| 178 | W Barker & Sons Well Drilling | 1,072 | — | 14 | 2011-01-31 |
| 179 | Tom Byrne Well Drilling | 1,057 | — | 12 | 2014-11-12 |
| 180 | Hindall (Floyd) | 1,054 | — | 13 | 1990-07-03 |
| 181 | Wright (Merle) Well Drilling | 1,044 | — | 11 | 1997-02-14 |
| 182 | A W Smith Well Drilling | 1,041 | — | 11 | 2021-07-15 |
| 183 | Fearon & Feller Inc. | 1,028 | — | 14 | 2011-07-05 |
| 184 | Schuster Well Drilling | 1,026 | — | 5 | 1984-05-22 |
| 185 | Eaton (Donald) | 1,019 | — | 12 | 1995-08-01 |
| 186 | Colwell Drilling | 1,014 | — | 8 | 1994-07-29 |
| 187 | Mark Stoepfel Drilling | 1,000 | — | 16 | 2013-05-24 |
| 188 | Green (Amel F) | 999 | — | 13 | 1988-04-15 |
| 189 | Smith Drilling Co. Inc. | 989 | — | 10 | 2021-12-02 |
| 190 | Glaser Water Service | 948 | — | 12 | 2008-10-16 |
| 191 | Vollmuth (Raymond A) | 946 | — | 11 | 1979-08-06 |
| 192 | Shorts (John) Well Drilling | 927 | — | 10 | 1997-07-25 |
| 193 | Brace (J B) | 889 | — | 5 | 1981-06-20 |
| 194 | Barrett Well Drilling | 881 | — | 9 | 2007-09-16 |
| 195 | Palmer Drilling Inc. | 880 | — | 10 | 2014-10-01 |
| 196 | Moravy Drilling Inc. | 875 | — | 9 | 2008-10-17 |
| 197 | Plummer Brothers | 863 | — | 9 | 1990-07-09 |
| 198 | Shafer Well Drilling | 862 | — | 9 | 1977-06-03 |
| 199 | Alchier Well Drilling | 849 | — | 6 | 1993-09-26 |
| 200 | Westfall Well Drilling | 846 | — | 10 | 2008-07-25 |
| 201 | Fowler (H C) | 823 | — | 5 | 1997-01-02 |
| 202 | Hofacker (Roy) | 816 | — | 10 | 1995-11-09 |
| 203 | Leindecker Well Drilling | 799 | — | 7 | 2012-04-25 |
| 204 | Cooley's Water Well Drilling | 796 | — | 11 | 2010-12-10 |
| 205 | Slanker Well Drilling | 794 | — | 8 | 1995-09-30 |
| 206 | Wes Britenstine Well Drilling | 786 | — | 19 | 2017-11-10 |
| 207 | King (Paul) Well Drilling | 785 | — | 7 | 1989-01-24 |
| 208 | Ingle (Donn) | 778 | — | 4 | 1979-12-12 |
| 209 | Waltz (D M) Drilling | 777 | — | 15 | 1995-05-24 |
| 210 | Bethel Water Well Drill | 762 | — | 7 | 1986-08-21 |
| 211 | Meyer Well Drilling | 758 | — | 10 | 2002-09-07 |
| 212 | Cunningham Well Drilling | 755 | — | 9 | 2007-12-07 |
| 213 | Ruby (Stan) Well Drilling | 750 | — | 39 | 1992-08-14 |
| 214 | Gillespie & Son | 750 | — | 8 | 1990-08-24 |
| 215 | Fyffe (T J) | 747 | — | 7 | 1980-08-20 |
| 216 | Mcbride Drilling Co. | 744 | — | 6 | 1983-10-03 |
| 217 | Glaser Water Well Drilling | 730 | — | 17 | 2002-10-17 |
| 218 | Buckeye Valley Well Drilling | 721 | — | 15 | 2007-07-31 |
| 219 | Ellsworth (Sam) | 714 | — | 9 | 1994-11-08 |
| 220 | Britenstine Well Drilling | 713 | — | 13 | 2017-10-18 |
| 221 | Burchett (William H) | 712 | — | 8 | 1980-09-22 |
| 222 | Stoffel Well Drilling | 707 | — | 11 | 1995-08-29 |
| 223 | Pichan Well Drilling | 702 | — | 9 | 2017-10-27 |
| 224 | Crane Well Drilling | 695 | — | 9 | 1991-05-30 |
| 225 | Christy (Joe) | 692 | — | 7 | 1980-05-22 |
| 226 | Snell Well Drilling & Pumps | 688 | — | 11 | 1991-09-30 |
| 227 | Eggett Well Drilling | 687 | — | 6 | 2001-10-31 |
| 228 | Stoltz Well Drilling | 685 | — | 13 | 2000-08-15 |
| 229 | New Rome Pump Service | 682 | — | 9 | 1996-12-11 |
| 230 | Wyse Well Drilling Inc. | 681 | — | 5 | 2019-06-16 |
| 231 | Williams Water Well Drilling | 679 | — | 13 | 2016-02-18 |
| 232 | Gilbert Well Drilling | 668 | — | 11 | 2009-07-06 |
| 233 | Thompson (M E) | 667 | — | 4 | 1988-08-16 |
| 234 | Lotts (A E) & Son | 665 | — | 13 | 1988-10-24 |
| 235 | Union County Drilling | 663 | — | 10 | 1999-07-20 |
| 236 | Diederich & Sons Drilling | 663 | — | 3 | 1975-08-27 |
| 237 | Ryan (A F) | 653 | — | 7 | 1994-04-01 |
| 238 | Robertson Well Drilling | 651 | — | 11 | 2001-01-06 |
| 239 | Shaffer (Byron) Well Drilling | 647 | — | 10 | 1997-02-20 |
| 240 | Neuberger (Carl) | 644 | — | 5 | 1978-09-25 |
| 241 | Treadway (William) Well Drilling | 640 | — | 11 | 1991-04-02 |
| 242 | Garrison Well Drilling | 640 | — | 9 | 1990-07-18 |
| 243 | Roberts (Willard) Well Drilling | 635 | — | 17 | 1995-03-15 |
| 244 | Jones Drilling | 631 | — | 19 | 2005-12-03 |
| 245 | Gillum Well Drilling | 625 | — | 8 | 1989-06-01 |
| 246 | Professional Water Well Systems | 624 | — | 16 | 2016-05-05 |
| 247 | Wershing (Roy E) | 615 | — | 4 | 1982-10-21 |
| 248 | Chenoweth Well Drilling | 610 | — | 10 | 1995-06-12 |
| 249 | Smith Drilling Contractors | 609 | — | 13 | 2021-08-04 |
| 250 | Kerr & Maxwell | 605 | — | 8 | 1985-12-25 |
| 251 | Scott Well & Pump Co. | 604 | — | 7 | 2008-06-12 |
| 252 | Eichof Drilling Co. | 602 | — | 3 | 1987-11-17 |
| 253 | Dewitt Drilling Co. | 600 | — | 12 | 2006-07-08 |
| 254 | Neroda Harry Drilling Co. | 600 | — | 4 | 1994-07-25 |
| 255 | Lynch (Theodore) | 599 | — | 9 | 1982-11-02 |
| 256 | Ingram (Kendall) | 592 | — | 3 | 1992-10-04 |
| 257 | Horton (Ray A) | 587 | — | 5 | 1991-09-16 |
| 258 | Bieri (K E) | 576 | — | 4 | 1996-11-08 |
| 259 | Givens Well Drilling | 576 | — | 5 | 1993-02-22 |
| 260 | Lower (Edward H) | 573 | — | 9 | 1976-06-20 |
| 261 | North Eastern Drilling | 568 | — | 4 | 1976-06-18 |
| 262 | Marion Kornhaus Well Drilling | 565 | — | 6 | 1996-09-12 |
| 263 | Arthur E Plummer & Son | 560 | — | 14 | 2002-03-25 |
| 264 | Stuckey (A R) & Sons | 556 | — | 8 | 1987-07-25 |
| 265 | Lalonde Well Drilling | 556 | — | 7 | 2014-04-11 |
| 266 | Arthur's Well Drilling | 552 | — | 13 | 2008-01-24 |
| 267 | Liles Well Drilling | 549 | — | 7 | 2001-07-10 |
| 268 | Fisher (Fred B) | 545 | — | 8 | 1992-01-29 |
| 269 | Ross Water Well Drilling | 544 | — | 10 | 2015-08-20 |
| 270 | Geauga Drilling & Supply Co. | 540 | — | 6 | 2005-12-01 |
| 271 | Williams (Ronald) Drilling Co. | 540 | — | 14 | 2019-02-20 |
| 272 | Ellis & Morris Drilling Co. | 539 | — | 16 | 2017-08-10 |
| 273 | Culp Drilling Co. | 531 | — | 11 | 1982-10-19 |
| 274 | West Salem Drilling Co. | 530 | — | 5 | 1994-08-05 |
| 275 | Weaver (Don) | 527 | — | 12 | 1992-04-28 |
| 276 | Leyden Management | 525 | — | 8 | 2004-03-11 |
| 277 | Steinman Water Well Drilling | 523 | — | 13 | 1992-02-03 |
| 278 | Fife Well Drilling | 520 | — | 8 | 1995-02-01 |
| 279 | J R Wells Water Well Drilling | 520 | — | 9 | 2017-05-16 |
| 280 | Coventry Well & Pump Service | 519 | — | 6 | 2006-11-16 |
| 281 | Dorsey (Walter R) | 511 | — | 10 | 1979-08-17 |
| 282 | Frantz Dawson Drilling Co. | 498 | — | 8 | 1996-07-31 |
| 283 | Gates Well Drilling | 496 | — | 9 | 1998-03-09 |
| 284 | Dan Allen Well Drilling | 495 | — | 9 | 2012-06-06 |
| 285 | Skolnik (J J) Pump Service | 494 | — | 6 | 1972-12-06 |
| 286 | Lininger Drilling & Pumps Inc. | 491 | — | 9 | 1997-12-05 |
| 287 | Quentin Neal Well Drilling | 491 | — | 8 | 1983-06-24 |
| 288 | Kalb (Sylvanus) | 490 | — | 6 | 1981-10-06 |
| 289 | Poling Drilling | 485 | — | 6 | 2007-12-20 |
| 290 | Hubble Well Drilling | 485 | — | 5 | 1973-06-08 |
| 291 | Ruby (Walter) | 478 | — | 6 | 1995-06-19 |
| 292 | Rex Drilling Co. | 478 | — | 10 | 2018-06-08 |
| 293 | Sarbaugh Drilling | 475 | — | 10 | 2012-08-29 |
| 294 | Spitnale Well Drilling | 465 | — | 5 | 1984-06-26 |
| 295 | Treadway (V L) | 462 | — | 13 | 1996-05-30 |
| 296 | Conner Well Drilling | 460 | — | 14 | 1988-07-06 |
| 297 | Urbank Well Drilling | 460 | — | 5 | 2005-06-10 |
| 298 | Alliance Water Well Inc. | 458 | — | 10 | 2007-11-24 |
| 299 | Carter (Elam) | 456 | — | 4 | 1995-07-18 |
| 300 | Snedden (E J) Well Drilling | 456 | — | 7 | 2001-08-23 |
| 301 | Smith (Gerald) Well Drilling | 456 | — | 10 | 2017-10-31 |
| 302 | Underhill Water Well Drilling | 451 | — | 13 | 2004-09-01 |
| 303 | Agua Well Drilling Inc. | 449 | — | 24 | 2014-10-30 |
| 304 | Smith & Sons | 448 | — | 23 | 1997-01-01 |
| 305 | Barnes & Sons | 446 | — | 14 | 1997-05-21 |
| 306 | Korn Well Drilling | 445 | — | 4 | 2012-04-19 |
| 307 | Robison Drilling | 443 | — | 10 | 2010-10-20 |
| 308 | King (Eldon E) | 443 | — | 9 | 1988-01-22 |
| 309 | Newbold (Durward J) | 439 | — | 4 | 1980-03-16 |
| 310 | Keen Drilling | 436 | — | 9 | 2000-06-26 |
| 311 | Finnegan Well Drilling | 436 | — | 3 | 1986-07-30 |
| 312 | Johnson Well Drilling | 433 | — | 10 | 1995-09-01 |
| 313 | Hrubik Well Drilling | 433 | — | 6 | 2005-12-15 |
| 314 | Humphrey Well Drilling | 430 | — | 14 | 2016-03-01 |
| 315 | Aqua Drilling Inc. | 430 | — | 20 | 2016-09-13 |
| 316 | Rogers Drilling | 430 | — | 7 | 1993-02-22 |
| 317 | Hull Well Drilling | 426 | — | 5 | 1999-12-30 |
| 318 | Shulaw Well Drilling | 425 | — | 6 | 1983-09-19 |
| 319 | Phillippi (Clair) | 425 | — | 6 | 1992-01-16 |
| 320 | Sherman (Glen A) | 422 | — | 10 | 1992-07-19 |
| 321 | Readshaw Well Drilling | 422 | — | 5 | 2010-11-30 |
| 322 | Congdon Well Drilling | 420 | — | 4 | 1985-06-27 |
| 323 | Kellenbarger & Sons Drilling | 413 | — | 4 | 1986-11-18 |
| 324 | Peck (Carl) Well Drilling | 412 | — | 10 | 2010-08-02 |
| 325 | Murphy (R F) | 410 | — | 6 | 1963-10-01 |
| 326 | Frey Earth Boring | 409 | — | 6 | 1994-02-19 |
| 327 | Parmenter Drilling Co. | 408 | — | 6 | 1988-07-01 |
| 328 | Kerr Corporation | 404 | — | 7 | 1985-11-19 |
| 329 | Hole & Middlebrook | 403 | — | 8 | 1997-09-02 |
| 330 | Waldron Well Drilling | 402 | — | 6 | 2018-07-01 |
| 331 | J & O Drilling | 399 | — | 14 | 2002-02-06 |
| 332 | Shetler Well Drilling | 396 | — | 2 | 1994-11-01 |
| 333 | Bauer Well Drilling | 393 | — | 10 | 2011-07-07 |
| 334 | James Westfall Well Drilling | 389 | — | 5 | 1997-12-20 |
| 335 | Frost Drilling | 386 | — | 18 | 2004-03-02 |
| 336 | Spencer (A C) | 386 | — | 7 | 1981-04-23 |
| 337 | Sheets Machinery | 381 | — | 9 | 2009-10-26 |
| 338 | Danny's Water Well Drilling | 379 | — | 9 | 2011-09-20 |
| 339 | Harpest (Ron) Well Drilling | 377 | — | 15 | 2005-11-12 |
| 340 | Robert Davis Well Drilling | 377 | — | 14 | 1997-05-22 |
| 341 | Frazier Drilling | 376 | — | 16 | 2002-04-23 |
| 342 | H E Peck Drilling | 376 | — | 10 | 2014-08-19 |
| 343 | Marion Harvey & Co. | 376 | — | 8 | 1961-03-20 |
| 344 | Hoover (J B) | 375 | — | 8 | 1973-07-24 |
| 345 | Short Brothers | 374 | — | 8 | 1995-11-09 |
| 346 | Hughes Well Drilling | 373 | — | 4 | 1993-12-19 |
| 347 | Stahl Drilling Co. | 372 | — | 8 | 1990-12-03 |
| 348 | Wright Well Drilling | 366 | — | 17 | 2005-12-27 |
| 349 | Vollmar (Kenneth) | 366 | — | 7 | 1990-07-23 |
| 350 | Don Armstrong Well Drilling LLC | 365 | — | 4 | 2021-07-20 |
| 351 | Swingle (Donald) Well Drilling | 364 | — | 11 | 2012-09-12 |
| 352 | Stephens (J W) | 364 | — | 7 | 1959-11-13 |
| 353 | Deel (Donald J) | 364 | — | 7 | 1996-10-26 |
| 354 | Complete Well Service | 362 | — | 17 | 2004-08-03 |
| 355 | Fraley Well Drilling | 362 | — | 6 | 2001-07-07 |
| 356 | Pataskala Well Drilling | 362 | — | 6 | 1977-08-26 |
| 357 | Oddo & Kimmett Water Well Drilling | 362 | — | 11 | 2002-05-22 |
| 358 | Jenkins Pump Sales & Serv | 359 | — | 8 | 2006-09-15 |
| 359 | Yantis (H V) | 358 | — | 2 | 1983-11-02 |
| 360 | Widmer (Dewey) & Son | 357 | — | 4 | 1970-08-15 |
| 361 | Flick's Drilling Inc. | 356 | — | 15 | 2017-08-23 |
| 362 | Mack Drilling | 354 | — | 8 | 1995-05-15 |
| 363 | Fieldman (Herm) | 353 | — | 7 | 1977-07-26 |
| 364 | King Drilling Co. | 350 | — | 7 | 1973-06-23 |
| 365 | Layne Ohio (Layne Christensen) | 347 | — | 53 | 2001-03-01 |
| 366 | Hamilton (H S) & Sons | 346 | — | 15 | 1996-09-03 |
| 367 | Oates (George) | 341 | — | 4 | 1974-10-14 |
| 368 | Benchmark Drilling | 340 | — | 12 | 2021-07-10 |
| 369 | Rhoades (Paul) | 340 | — | 8 | 1997-07-24 |
| 370 | Parker Well Drilling | 339 | — | 12 | 2003-09-30 |
| 371 | Phillips Well Drilling | 338 | — | 17 | 2007-11-09 |
| 372 | May (H J) | 338 | — | 8 | 1991-01-06 |
| 373 | Grimm (Barnett) | 335 | — | 9 | 1972-03-27 |
| 374 | Peck Well Drilling | 333 | — | 7 | 2002-02-28 |
| 375 | Sugarcreek Drilling | 333 | — | 7 | 1996-08-10 |
| 376 | Urbank Brothers | 332 | — | 4 | 1996-09-24 |
| 377 | S & N Berea Drilling Co. | 331 | — | 5 | 2012-09-25 |
| 378 | Area Wide Drilling & Pump Service | 328 | — | 16 | 2012-01-20 |
| 379 | Bates Water Well Drilling | 327 | — | 6 | 1995-08-24 |
| 380 | Wolfe's Drilling Co. | 323 | — | 4 | 1996-07-14 |
| 381 | Walter (Ray) | 323 | — | 4 | 2019-01-15 |
| 382 | Kinser Well Drilling | 321 | — | 7 | 1967-07-18 |
| 383 | Filkill Water Well Drilling | 318 | — | 7 | 2007-05-01 |
| 384 | Hupp Well & Pump Co. | 318 | — | 6 | 1969-03-08 |
| 385 | Mills (Dale N) | 317 | — | 9 | 1971-12-26 |
| 386 | Shamrock Drilling | 315 | — | 9 | 2004-12-17 |
| 387 | Pittman (Carl F) | 315 | — | 8 | 1991-05-13 |
| 388 | Amos-Vollmar Drilling | 315 | — | 6 | 1982-11-03 |
| 389 | Rupert & Sons Drilling | 313 | — | 7 | 2000-07-24 |
| 390 | Bunker (Dewey) | 313 | — | 5 | 1971-10-27 |
| 391 | Casey's Well Drilling | 312 | — | 9 | 2007-10-10 |
| 392 | Trefz (Rodney H) | 310 | — | 8 | 1984-06-23 |
| 393 | Lewis (Sam) Well Drilling | 310 | — | 5 | 1999-09-15 |
| 394 | Fisher's Water Well Service | 310 | — | 8 | 2002-04-26 |
| 395 | Edmonds Water Well Drilling | 308 | — | 12 | 1999-11-15 |
| 396 | Rupp Well Drilling Service | 307 | — | 5 | 2010-10-15 |
| 397 | Smith (Ora) | 304 | — | 6 | 1988-05-18 |
| 398 | Kendall (Clyde) | 298 | — | 3 | 1962-05-24 |
| 399 | Bushong (Charles Burton) | 295 | — | 13 | 1995-03-27 |
| 400 | Lupher Drilling | 295 | — | 6 | 2000-11-01 |
| 401 | Wright (Larry) Drilling | 293 | — | 20 | 2007-09-21 |
| 402 | Poole's Water Well Drilling | 293 | — | 7 | 1973-06-30 |
| 403 | Anderson Water Well | 293 | — | 7 | 2006-09-02 |
| 404 | Volk's Drilling & Service | 290 | — | 5 | 2002-12-30 |
| 405 | Earl Davis Well Drilling | 289 | — | 12 | 1988-12-31 |
| 406 | Bach Brothers Drilling Co. | 288 | — | 6 | 1981-09-14 |
| 407 | Uhl Drilling | 287 | — | 6 | 1994-12-19 |
| 408 | Dennis Tippie Well Drlg & Service | 287 | — | 9 | 2010-12-23 |
| 409 | Lotts Well Drilling | 286 | — | 10 | 1991-08-25 |
| 410 | Parks Well Drilling | 284 | — | 7 | 2002-06-18 |
| 411 | Scott (Oakey) Well Drilling | 281 | — | 9 | 1995-10-01 |
| 412 | J & H Drilling | 280 | — | 4 | 2019-09-26 |
| 413 | Garrabrant Well Drilling | 279 | — | 6 | 2005-12-05 |
| 414 | Magness (O P) Drilling | 278 | — | 10 | 1973-10-09 |
| 415 | W U Scott Drilling | 278 | — | 9 | 2000-04-03 |
| 416 | Branecky (Joseph) | 275 | — | 2 | 1964-01-25 |
| 417 | Vanderpool (Herbert) | 272 | — | 6 | 1970-11-17 |
| 418 | Nichols Well Drilling | 271 | — | 7 | 1984-10-13 |
| 419 | H E Johnson Well Drilling | 270 | — | 9 | 2016-05-01 |
| 420 | Bulcher (Willard) | 270 | — | 5 | 1970-06-15 |
| 421 | Ross (Latta) | 268 | — | 2 | 1962-11-19 |
| 422 | Tibboles (Melvin E) | 267 | — | 6 | 1996-03-01 |
| 423 | Peacock Well Drilling | 265 | — | 12 | 1995-03-07 |
| 424 | Belton Water Well Drilling | 264 | — | 6 | 2000-08-23 |
| 425 | Stoltz (H L) & Son | 261 | — | 10 | 1995-09-09 |
| 426 | Spencer Drilling Inc. | 261 | — | 18 | 1989-05-10 |
| 427 | Kaser (V J) | 261 | — | 6 | 1965-06-10 |
| 428 | Vickroy Well Drilling | 260 | — | 9 | 2018-11-20 |
| 429 | B E Wright Drilling | 260 | — | 10 | 2008-07-17 |
| 430 | G M Baker & Son | 259 | — | 37 | 2002-05-29 |
| 431 | Shank (M C) | 259 | — | 3 | 1970-04-27 |
| 432 | Clinton Well Drillers | 256 | — | 10 | 1987-09-12 |
| 433 | Shoup & Long Well Drilling | 256 | — | 9 | 1988-06-29 |
| 434 | Shaffer (Glen) | 256 | — | 12 | 1987-06-21 |
| 435 | G & J Drilling | 254 | — | 9 | 2013-11-12 |
| 436 | Wheeler (Ray) | 254 | — | 7 | 1984-10-30 |
| 437 | Mccoy Well Drilling Service | 253 | — | 13 | 1968-09-24 |
| 438 | Schneider Well Drilling Inc. | 253 | — | 6 | 1989-08-30 |
| 439 | A-1 Water Service | 253 | — | 5 | 1994-03-27 |
| 440 | Smitty's Drilling | 253 | — | 10 | 2020-10-01 |
| 441 | Cook Drilling | 251 | — | 13 | 2019-09-06 |
| 442 | Paxton (Howard) | 251 | — | 4 | 1981-03-10 |
| 443 | Kautz Well Drilling | 251 | — | 7 | 1988-05-23 |
| 444 | Wilkes (Richard A) | 251 | — | 4 | 1978-05-15 |
| 445 | Blauser (Grover C) | 249 | — | 5 | 1980-11-05 |
| 446 | Messenger (Carl) | 248 | — | 6 | 1991-09-09 |
| 447 | Suburban Drilling Co. | 247 | — | 13 | 1977-08-08 |
| 448 | Scott (R G) | 247 | — | 7 | 1989-03-14 |
| 449 | Trefz Well Drilling | 245 | — | 6 | 1988-10-08 |
| 450 | Guy Hayslip & Son Well Drilling | 244 | — | 12 | 2003-06-23 |
| 451 | Hatfield (R A) & Son Inc. | 243 | — | 14 | 1983-03-01 |
| 452 | Gehrke Drilling & Supply Co. | 242 | — | 6 | 1989-08-15 |
| 453 | Baumgartner (Frank) | 241 | — | 8 | 1977-10-01 |
| 454 | Heckman (Ray) | 241 | — | 6 | 1990-09-14 |
| 455 | J & J Builders | 240 | — | 14 | 2001-07-03 |
| 456 | L & M Drilling | 240 | — | 10 | 2008-07-08 |
| 457 | Day Drilling Co. | 239 | — | 6 | 1984-03-01 |
| 458 | Forshey (Joseph) | 239 | — | 6 | 1965-09-25 |
| 459 | Pittman (Ray O) | 239 | — | 8 | 1966-07-11 |
| 460 | Wareham Drilling | 239 | — | 4 | 1996-11-02 |
| 461 | J M Chuck Well Drilling | 239 | — | 5 | 1981-01-30 |
| 462 | A & A Well Drilling | 237 | — | 11 | 1995-12-01 |
| 463 | Clevenger Well Drilling | 237 | — | 5 | 1976-09-20 |
| 464 | Charles Allen Water Well Drilling | 236 | — | 10 | 2011-12-13 |
| 465 | Harley (V J) And Son | 236 | — | 8 | 2005-12-29 |
| 466 | Coppock (Ralph) | 236 | — | 2 | 1983-01-25 |
| 467 | Applegate (Glenn C) | 235 | — | 7 | 1969-05-09 |
| 468 | Hall's Water Well Drilling | 234 | — | 12 | 2011-12-28 |
| 469 | Roth Earth Boring | 231 | — | 7 | 2008-12-05 |
| 470 | Burkhead Drilling & Excavating | 229 | — | 11 | 2004-05-15 |
| 471 | Beal Well Drilling | 227 | — | 7 | 2014-08-02 |
| 472 | Treadway (Gerald) Well Drilling | 225 | — | 6 | 1999-11-17 |
| 473 | Larson Drilling & Machine Inc. | 225 | — | 6 | 1969-08-28 |
| 474 | Hendershot (W C) | 224 | — | 5 | 1972-12-31 |
| 475 | Cope (H C) | 224 | — | 2 | 1984-10-09 |
| 476 | J & B Wells | 223 | — | 4 | 2012-02-03 |
| 477 | Frey Well Drilling | 223 | — | 4 | 1993-12-28 |
| 478 | Bohn Bros Well Drilling | 221 | — | 8 | 2004-07-17 |
| 479 | Wolverton (Ken) Well Drilling | 221 | — | 5 | 1976-01-06 |
| 480 | Anders Drilling | 219 | — | 9 | 2005-08-19 |
| 481 | Ault (R B) | 218 | — | 2 | 1971-07-30 |
| 482 | Berry (Elwyn) Well Drilling | 216 | — | 2 | 1996-08-09 |
| 483 | Fisher (John J) | 216 | — | 8 | 1973-05-26 |
| 484 | Hughes (Hargis) | 215 | — | 7 | 1969-04-09 |
| 485 | Kessler (L H) Well Drilling | 215 | — | 9 | 1981-09-23 |
| 486 | Bushong (Richard L) | 215 | — | 10 | 1984-06-06 |
| 487 | Bettinger Well Drilling | 215 | — | 2 | 1987-09-12 |
| 488 | Van Scoder (Harry N) | 214 | — | 3 | 1992-10-23 |
| 489 | S & S Well Drilling | 214 | — | 8 | 2006-10-15 |
| 490 | Benjamin (C B) | 213 | — | 5 | 1975-05-28 |
| 491 | Garnes Water Wells | 213 | — | 8 | 1997-01-02 |
| 492 | Johnston (Dean L) | 212 | — | 6 | 1994-07-15 |
| 493 | Hasson Well Drilling | 212 | — | 6 | 2016-02-23 |
| 494 | John Brenner & Sons | 210 | — | 7 | 1995-10-02 |
| 495 | Kohler (Glenn) | 210 | — | 4 | 1980-02-27 |
| 496 | T-Drilling | 210 | — | 11 | 2001-04-04 |
| 497 | Field Well Drilling | 210 | — | 11 | 1986-04-19 |
| 498 | Walters (M V) | 209 | — | 4 | 1968-01-02 |
| 499 | Assure Well Drilling | 208 | — | 12 | 2013-05-28 |
| 500 | Patterson (S C) Drilling | 208 | — | 9 | 1988-08-06 |
| 501 | Mid-America Recovery Service | 208 | — | 8 | 2017-02-12 |
| 502 | C H Bond & Son | 208 | — | 4 | 1984-04-22 |
| 503 | Snoddy Well Drilling | 207 | — | 6 | 1988-04-26 |
| 504 | Asher (A J) | 207 | — | 5 | 1993-08-12 |
| 505 | Lewis Bros | 206 | — | 4 | 1988-07-17 |
| 506 | Moody Brothers | 206 | — | 3 | 1991-11-05 |
| 507 | Blocksom (P L) | 206 | — | 3 | 1966-10-07 |
| 508 | Brown's Well Drilling | 205 | — | 8 | 1976-10-16 |
| 509 | Jordan (Emmett M) | 204 | — | 7 | 1975-10-25 |
| 510 | Cave Well Drilling | 204 | — | 6 | 1996-09-29 |
| 511 | Bowen Excavating And Drilling | 204 | — | 7 | 2002-11-24 |
| 512 | Watkins & Son Drilling | 203 | — | 8 | 1980-10-22 |
| 513 | Crumley (W A) | 202 | — | 5 | 1972-03-06 |
| 514 | Knisley Well Drilling | 202 | — | 7 | 1997-12-09 |
| 515 | Jackson (C W) & Sons Inc. | 201 | — | 19 | 2001-10-03 |
| 516 | Crist Well Service | 200 | — | 6 | 1984-12-28 |
| 517 | Cole (Donald) | 200 | — | 9 | 1966-09-30 |
| 518 | Markle Drilling | 199 | — | 7 | 2000-01-16 |
| 519 | Mcclelland (Harry) & Son | 198 | — | 8 | 1962-09-20 |
| 520 | Tracy (Hershel) | 197 | — | 7 | 1972-10-20 |
| 521 | Gilbert's Well Drilling Co. | 197 | — | 6 | 1992-06-02 |
| 522 | Ulery Service & Repair | 197 | — | 7 | 1996-10-04 |
| 523 | Boorn Drilling Inc. | 197 | — | 5 | 1999-09-27 |
| 524 | Water Systems Inc. | 196 | — | 13 | 2000-04-18 |
| 525 | Moats Drilling Co. | 196 | — | 10 | 1983-12-10 |
| 526 | Kapalin Inc. | 196 | — | 3 | 2006-01-01 |
| 527 | Underhill (Charles A SR) | 195 | — | 5 | 1995-06-29 |
| 528 | Waltz (Kenneth) & Sons | 195 | — | 8 | 1966-07-31 |
| 529 | Slaven Robert & Son | 194 | — | 2 | 1992-01-16 |
| 530 | Sherman (Hobart) | 193 | — | 4 | 1983-07-16 |
| 531 | Watkins (Robert N) | 193 | — | 5 | 1973-11-29 |
| 532 | England Drilling | 191 | — | 5 | 1997-12-16 |
| 533 | Good (Melvin) | 191 | — | 5 | 1985-04-12 |
| 534 | Smith (R) Water Well Drilling | 190 | — | 13 | 2007-12-19 |
| 535 | Graham (W R) | 190 | — | 5 | 1966-04-23 |
| 536 | Fitzsimmons (Luke) | 190 | — | 5 | 1963-02-02 |
| 537 | Long (T D) Drilling Co. | 189 | — | 8 | 1986-10-24 |
| 538 | Scott Well Drilling | 187 | — | 19 | 2002-04-15 |
| 539 | Larry Bevard Water Well Drilling | 187 | — | 7 | 2012-10-01 |
| 540 | Henningsen (G L) & Son | 187 | — | 3 | 2004-12-18 |
| 541 | Reynolds Inc. | 186 | — | 37 | 2013-10-29 |
| 542 | Noggle (Harley) | 186 | — | 5 | 1990-09-21 |
| 543 | Kisner Drilling Co. | 186 | — | 6 | 1979-11-10 |
| 544 | Odnr (Water) | 185 | — | 33 | 1983-07-12 |
| 545 | Manaham (N O) & Son | 185 | — | 2 | 1962-06-12 |
| 546 | Turner (George L) | 184 | — | 9 | 1975-11-03 |
| 547 | Price Drilling | 184 | — | 8 | 1987-09-05 |
| 548 | Rose (Morris) | 183 | — | 2 | 1972-11-19 |
| 549 | Estep Water Well Drilling | 181 | — | 11 | 1997-08-29 |
| 550 | Reed Drilling | 181 | — | 8 | 2003-10-25 |
| 551 | Wilson (Vance) Well Drilling | 181 | — | 7 | 2006-09-19 |
| 552 | Stebelton (Everett) | 181 | — | 2 | 1969-04-18 |
| 553 | Anderson (Raymond) | 180 | — | 5 | 1983-09-15 |
| 554 | Chas Hoover Well Drilling | 180 | — | 7 | 1978-10-30 |
| 555 | H L Smith Well Drilling | 180 | — | 6 | 2006-02-10 |
| 556 | Plains Drilling Co. | 179 | — | 6 | 1985-08-08 |
| 557 | Lancaster Well Service | 179 | — | 5 | 1975-12-16 |
| 558 | Mike Herr Well & Pump | 179 | — | 9 | 2000-11-02 |
| 559 | Wade (R Leo) | 179 | — | 5 | 1973-05-17 |
| 560 | Brenner Well Drilling | 178 | — | 7 | 1970-12-14 |
| 561 | Board Water Well Drilling | 177 | — | 3 | 1994-09-16 |
| 562 | Stewart Well Drilling | 177 | — | 10 | 1980-05-20 |
| 563 | Kisner (J H) | 177 | — | 4 | 1987-05-10 |
| 564 | Baldwin Qualified Well Drilling | 176 | — | 10 | 1975-12-28 |
| 565 | Gene's Water Service Inc. | 176 | — | 4 | 1989-01-15 |
| 566 | Mccarty Well Drilling | 175 | — | 10 | 1990-07-27 |
| 567 | Mike's Water Well Drilling | 175 | — | 9 | 2002-08-18 |
| 568 | Hines Drilling | 175 | — | 7 | 1992-06-12 |
| 569 | Hoover Well Drilling | 173 | — | 10 | 1987-12-07 |
| 570 | Depew (Levi) Well Drilling | 173 | — | 7 | 2020-01-09 |
| 571 | Dan Brining Pump Service | 171 | — | 5 | 2008-07-31 |
| 572 | Sherman Well Drilling | 170 | — | 9 | 1985-05-25 |
| 573 | Fredebaugh (Lee G) | 170 | — | 4 | 1973-06-06 |
| 574 | Central Ohio Drilling | 169 | — | 7 | 1972-06-02 |
| 575 | Cranz (Luman P) | 168 | — | 3 | 1964-05-31 |
| 576 | Zesing (Charles F) | 167 | — | 5 | 1971-04-06 |
| 577 | Sean Speedy Drilling | 167 | — | 5 | 2019-08-14 |
| 578 | Hinton Drilling Co. | 165 | — | 5 | 2004-12-29 |
| 579 | Goodwin (R H) | 164 | — | 8 | 1980-09-05 |
| 580 | Harley (R S) | 164 | — | 6 | 1970-10-01 |
| 581 | Koch (Alvin) | 164 | — | 6 | 1954-05-20 |
| 582 | Carl Lemon Well Drilling | 163 | — | 9 | 2004-07-02 |
| 583 | N L Croup Drilling | 163 | — | 5 | 2000-09-01 |
| 584 | King (S G) & Son | 163 | — | 7 | 1970-10-20 |
| 585 | Clearwater Well Drilling Inc. | 163 | — | 8 | 2000-12-01 |
| 586 | Stein (R H) | 163 | — | 6 | 1978-08-03 |
| 587 | Eddie Achor Well Drilling | 161 | — | 6 | 1994-02-20 |
| 588 | Price (Dwight E) | 161 | — | 6 | 1975-08-19 |
| 589 | K & S Well Drilling | 161 | — | 9 | 2002-02-20 |
| 590 | Hamilton (J D JR) | 159 | — | 6 | 1967-01-24 |
| 591 | Graham (E F) | 159 | — | 4 | 1978-08-28 |
| 592 | Finley Pump & Drilling | 158 | — | 7 | 2005-12-06 |
| 593 | Hickman (Charles W) | 157 | — | 8 | 1988-07-05 |
| 594 | Boreman Drilling | 156 | — | 7 | 1973-03-12 |
| 595 | Garman Drilling | 155 | — | 6 | 2006-03-08 |
| 596 | Brogan Well Drilling Co. | 155 | — | 6 | 1984-11-15 |
| 597 | Darby's Well Drilling | 154 | — | 8 | 2002-12-01 |
| 598 | Dull (Ira C) | 154 | — | 4 | 1959-10-08 |
| 599 | Mcdonald (T G) & Son | 154 | — | 1 | 1956-10-30 |
| 600 | Thomas (Grant) | 153 | — | 5 | 1965-07-31 |
| 601 | Rogers & Sons Drilling | 153 | — | 8 | 2003-10-07 |
| 602 | Brown Drilling | 152 | — | 20 | 2007-07-01 |
| 603 | Medaugh (William K) | 152 | — | 3 | 1964-05-29 |
| 604 | C & P Well Drilling | 151 | — | 4 | 1997-12-20 |
| 605 | Berry (Gary) Well Drilling | 150 | — | 6 | 2016-10-22 |
| 606 | Halls Well Drilling | 149 | — | 21 | 1998-01-23 |
| 607 | Green's Well Drilling & Water Svc | 149 | — | 10 | 2001-05-21 |
| 608 | L L Hall Drilling | 149 | — | 2 | 2003-12-10 |
| 609 | Richardson (W B) Corp | 148 | — | 4 | 1979-05-21 |
| 610 | Martin (George E) & Son | 148 | — | 3 | 1965-06-11 |
| 611 | Morgan Well Drilling | 147 | — | 4 | 1992-04-28 |
| 612 | Horton Pump Service | 147 | — | 5 | 1976-10-19 |
| 613 | Lykins (Herbert) | 146 | — | 6 | 1991-07-26 |
| 614 | Waggoner Well Drilling | 146 | — | 4 | 2000-11-03 |
| 615 | Wilson Plbg Htg & Cooling | 145 | — | 15 | 1997-02-02 |
| 616 | Whitesed (D L) & Son Drilling | 145 | — | 6 | 1996-03-10 |
| 617 | Flory (J Arthur) | 145 | — | 4 | 1967-12-30 |
| 618 | Sterling Well Drilling | 145 | — | 7 | 2017-11-25 |
| 619 | Edgar Drilling | 144 | — | 6 | 1997-09-29 |
| 620 | Riddle (Robert) | 144 | — | 6 | 2011-07-25 |
| 621 | Delong (Karmel) | 143 | — | 3 | 1977-12-31 |
| 622 | Hoover Water Systems | 143 | — | 14 | 2003-10-22 |
| 623 | Adkins Well Drilling | 143 | — | 8 | 2018-11-12 |
| 624 | Burch Well Drilling | 143 | — | 7 | 2004-11-23 |
| 625 | Spaulding (Raymond) | 142 | — | 7 | 1969-07-05 |
| 626 | Boes Well Drilling LLC | 142 | — | 6 | 2011-08-27 |
| 627 | Michel Water Well Drilling | 141 | — | 5 | 1994-10-08 |
| 628 | Harpster (Harry E) | 141 | — | 7 | 1973-10-28 |
| 629 | Robert M Andrew And Sons | 139 | — | 6 | 1967-06-27 |
| 630 | Easterling (D L) | 138 | — | 6 | 1971-12-23 |
| 631 | Shorts Water Well Drilling | 138 | — | 9 | 1996-11-19 |
| 632 | Barnes (D C) | 138 | — | 8 | 2010-09-30 |
| 633 | Alert Well Drilling Co. | 138 | — | 3 | 1973-12-01 |
| 634 | Fred H Bull & Son | 137 | — | 2 | 1980-01-26 |
| 635 | Earl Hollandsworth Inc. | 136 | — | 6 | 1960-03-26 |
| 636 | H & H Drilling (Alliance) | 136 | — | 7 | 2001-07-06 |
| 637 | Scott Drilling | 135 | — | 8 | 1995-07-25 |
| 638 | Dawson Drilling | 135 | — | 8 | 2004-07-15 |
| 639 | B & B Well Drilling | 134 | — | 15 | 1993-02-05 |
| 640 | Calvin (Denver O) | 134 | — | 3 | 1970-12-05 |
| 641 | Marsh II Drilling | 133 | — | 10 | 1999-04-06 |
| 642 | Cox Drilling LLC | 131 | — | 9 | 2007-10-25 |
| 643 | Suburban Pump Company | 130 | — | 3 | 1975-08-21 |
| 644 | Mccullough (Gilbert) | 129 | — | 5 | 1989-09-10 |
| 645 | Burgan Drilling | 129 | — | 7 | 1997-05-05 |
| 646 | Ferguson Drilling | 129 | — | 4 | 1999-01-17 |
| 647 | Mcgill Drilling & Pump | 129 | — | 5 | 1999-02-25 |
| 648 | Mcgill Well Drilling | 128 | — | 4 | 1997-07-23 |
| 649 | Agnew (Marshall) | 127 | — | 3 | 1967-09-20 |
| 650 | Sullivan (David L) | 127 | — | 4 | 1956-06-27 |
| 651 | Carroll's Well & Pump Service | 127 | — | 7 | 2008-02-02 |
| 652 | Haines Well Drilling | 127 | — | 4 | 2004-04-14 |
| 653 | Zurcher (Fred C) | 127 | — | 4 | 1960-12-13 |
| 654 | Miller (Floyd) Well Drilling | 126 | — | 7 | 1990-06-22 |
| 655 | Middlebrook (T A) | 125 | — | 4 | 1974-07-24 |
| 656 | Coffey Well Drilling | 124 | — | 6 | 1990-09-16 |
| 657 | Melick (W O) | 124 | — | 5 | 1966-03-28 |
| 658 | Unger Well Drilling | 123 | — | 5 | 2002-11-20 |
| 659 | Miller (Clay E) | 122 | — | 8 | 1969-07-19 |
| 660 | Helser & Sons Water Well Drilling | 122 | — | 4 | 2000-06-02 |
| 661 | Wheeler Drilling Co. | 122 | — | 11 | 1984-07-23 |
| 662 | Tobin Well Drilling | 122 | — | 5 | 1982-10-01 |
| 663 | Miller (John) Well Drilling | 121 | — | 12 | 1992-10-25 |
| 664 | Dixie Drilling | 121 | — | 5 | 1997-06-20 |
| 665 | Rowan Drilling Co. | 121 | — | 8 | 1996-01-04 |
| 666 | Parks & Mcbride | 120 | — | 2 | 1994-05-26 |
| 667 | Rutledge (Rodney) | 119 | — | 4 | 1964-12-23 |
| 668 | Kamph's Pump & Well Service | 119 | — | 6 | 1996-11-04 |
| 669 | Parsons (Lovell M) | 118 | — | 16 | 1972-03-07 |
| 670 | Hyden Brothers | 118 | — | 4 | 1964-12-01 |
| 671 | Mckinley (I F) | 118 | — | 4 | 1996-11-04 |
| 672 | Hart's Water Well Drilling | 118 | — | 5 | 2003-10-21 |
| 673 | Doug Frost Drilling | 118 | — | 7 | 2016-11-12 |
| 674 | H & D Drilling Company | 118 | — | 4 | 1978-08-15 |
| 675 | Lovely (Hershel) Well Drilling | 117 | — | 11 | 1996-12-05 |
| 676 | Mark Hull Drilling | 117 | — | 10 | 1999-12-22 |
| 677 | Tucker (D C) | 117 | — | 4 | 1959-10-08 |
| 678 | Bebout (R C) | 116 | — | 3 | 1986-06-27 |
| 679 | Sparks Drilling | 113 | — | 8 | 1998-12-28 |
| 680 | C & K Well Drilling | 113 | — | 9 | 1998-10-19 |
| 681 | Wood Drilling | 112 | — | 10 | 1972-08-18 |
| 682 | Pinkerton (Carl) & Son | 112 | — | 5 | 1992-10-06 |
| 683 | Accurate Well Drilling | 111 | — | 7 | 1999-09-01 |
| 684 | FW Eikleberry & Son | 111 | — | 9 | 2017-12-23 |
| 685 | Layman Well Drilling | 111 | — | 5 | 2004-03-23 |
| 686 | Hensel Drilling | 110 | — | 6 | 1982-06-23 |
| 687 | Fredebaugh (David) | 110 | — | 4 | 1980-01-01 |
| 688 | Adams (J E) | 109 | — | 7 | 1994-09-21 |
| 689 | Tipton (Virgil) | 109 | — | 2 | 1963-09-12 |
| 690 | Harpest (Don E) | 109 | — | 5 | 1964-04-26 |
| 691 | Nethers Tom Drilling Co. | 108 | — | 4 | 2018-11-12 |
| 692 | Roberts (Edward) Well Drilling | 108 | — | 5 | 1986-09-22 |
| 693 | Castor's Well Service | 108 | — | 4 | 1997-12-30 |
| 694 | Don Smith Well Drilling | 108 | — | 4 | 1992-06-09 |
| 695 | Kuck (H J) | 107 | — | 5 | 1965-10-01 |
| 696 | Sell (John) | 107 | — | 3 | 1991-06-08 |
| 697 | Fife (Myrl K) | 107 | — | 5 | 1980-07-28 |
| 698 | H & A Water Well Drlg & Pump Svc | 106 | — | 9 | 2002-02-23 |
| 699 | Aultfather Charles Drilling | 105 | — | 5 | 1991-04-20 |
| 700 | Edwards (Clyde) | 105 | — | 4 | 1966-11-09 |
| 701 | Shoup (Andrew) | 105 | — | 6 | 1964-06-20 |
| 702 | Perry Water Well Drilling | 103 | — | 4 | 1995-10-12 |
| 703 | King Well Drilling | 103 | — | 13 | 1986-10-03 |
| 704 | Fait Drilling | 103 | — | 7 | 2008-10-03 |
| 705 | Pegg & Company | 102 | — | 6 | 1958-09-03 |
| 706 | Gregory & Sons | 102 | — | 5 | 1980-06-19 |
| 707 | Anderson (Sterling) | 102 | — | 6 | 1993-08-22 |
| 708 | R & J Well Drilling | 101 | — | 12 | 2014-04-20 |
| 709 | Burns (Carl W) | 101 | — | 5 | 1982-08-01 |
| 710 | Mccoy Drilling & Supply Co. | 100 | — | 7 | 1972-03-10 |
| 711 | Taylor & Holden | 100 | — | 2 | 1969-05-13 |
| 712 | Rudes (R S) | 100 | — | 4 | 1960-02-26 |
| 713 | Hoffman Drilling Co. | 98 | — | 7 | 1976-04-28 |
| 714 | Drake (Edwin C) | 98 | — | 3 | 1979-11-07 |
| 715 | Williams (D S) | 97 | — | 7 | 1963-08-31 |
| 716 | Sells Well & Water Supply | 97 | — | 6 | 1969-07-14 |
| 717 | Donley (Walter) | 97 | — | 5 | 1975-09-24 |
| 718 | Borders Water Wells | 96 | — | 2 | 1978-02-06 |
| 719 | Shively Brothers Drilling | 96 | — | 2 | 1972-07-03 |
| 720 | Allen Water Well Drilling | 96 | — | 9 | 2002-11-25 |
| 721 | Hampson Drilling | 96 | — | 4 | 1994-11-15 |
| 722 | Rice Sid Well Drilling | 95 | — | 8 | 1988-12-06 |
| 723 | Harvey (James A) | 95 | — | 4 | 1972-09-22 |
| 724 | Hardy (E L) | 95 | — | 3 | 1967-10-13 |
| 725 | R & J Well Drilling (Randy) | 94 | — | 12 | 2006-06-07 |
| 726 | Scarlott Well Drilling | 94 | — | 5 | 2005-11-26 |
| 727 | Culver (Clyde) | 93 | — | 5 | 1960-05-02 |
| 728 | Patterson Drilling | 92 | — | 12 | 1988-05-09 |
| 729 | Anderson Water Well Drilling | 92 | — | 4 | 1987-07-18 |
| 730 | Fisher's Well Drilling | 92 | — | 6 | 1980-05-09 |
| 731 | Walsh Pump & Supply | 92 | — | 2 | 1955-04-25 |
| 732 | Pete Clepper Well Drilling | 91 | — | 6 | 2003-06-27 |
| 733 | Phillips Water Well Drilling | 90 | — | 8 | 1992-07-20 |
| 734 | Feiber (J M) | 90 | — | 3 | 1969-09-23 |
| 735 | Murral Drilling | 89 | — | 6 | 2009-12-27 |
| 736 | D & L Drilling LLC (Old) | 88 | — | 12 | 2014-05-31 |
| 737 | Ace Drilling | 88 | — | 13 | 2021-01-12 |
| 738 | Reynolds (B A) | 88 | — | 4 | 1998-06-09 |
| 739 | Flanagan Drilling | 88 | — | 7 | 1960-03-15 |
| 740 | Applegate (G D) | 88 | — | 4 | 1975-03-01 |
| 741 | Watson Drilling | 88 | — | 7 | 2021-10-22 |
| 742 | Pfeifer Drilling | 88 | — | 4 | 1961-03-01 |
| 743 | Snyder (L E) | 88 | — | 4 | 1986-07-16 |
| 744 | Dingess (Jay) Well Drilling | 87 | — | 5 | 1995-09-20 |
| 745 | Edwards Well Drilling | 87 | — | 7 | 2002-11-30 |
| 746 | Lynch (E J) | 86 | — | 3 | 1959-09-18 |
| 747 | HD Sonic Drilling Inc. | 86 | — | 9 | 2002-04-18 |
| 748 | Shaffer (William) Well Drilling | 86 | — | 7 | 1987-09-15 |
| 749 | Dunbar Drilling Co. | 86 | — | 19 | 1984-04-05 |
| 750 | Scott A Welch Water Well Drilling | 85 | — | 13 | 1995-12-08 |
| 751 | Zimmerman (ED L) | 85 | — | 5 | 1966-06-14 |
| 752 | Yarrish (John) | 85 | — | 2 | 1968-07-30 |
| 753 | Sprowls Drilling Co. (Groveport) | 84 | — | 15 | 2001-07-20 |
| 754 | Hays (Elbert) | 83 | — | 5 | 1957-03-13 |
| 755 | Tincher (Hugh) Well Drilling | 83 | — | 7 | 1992-12-03 |
| 756 | Ricketts & Co. | 83 | — | 6 | 1957-06-27 |
| 757 | Dunbar-Stark-Layne Drilling | 83 | — | 7 | 1989-07-28 |
| 758 | Graham (Parker) | 83 | — | 3 | 1964-11-14 |
| 759 | James R Moran Drilling Co. | 82 | — | 5 | 2008-10-30 |
| 760 | Frey (Ernest E) | 82 | — | 9 | 1964-08-25 |
| 761 | Derck Drilling | 82 | — | 2 | 1972-10-31 |
| 762 | Howard's Hardware & Plumbing | 82 | — | 1 | 2006-10-03 |
| 763 | L & L Well Drilling | 81 | — | 6 | 1984-07-24 |
| 764 | Larsen (N W) | 81 | — | 4 | 1973-05-03 |
| 765 | Spung's Well Drilling | 80 | — | 8 | 1993-10-20 |
| 766 | Lehman Well Drilling | 80 | — | 8 | 1971-12-22 |
| 767 | Davis Water Systems | 80 | — | 5 | 1992-05-06 |
| 768 | Lemon (Chester) & Son | 79 | — | 7 | 1996-08-14 |
| 769 | Stillman Well Drilling | 79 | — | 7 | 1977-09-02 |
| 770 | M & M Contractors | 79 | — | 7 | 1986-07-14 |
| 771 | Foltz Well Drilling | 79 | — | 3 | 1985-04-16 |
| 772 | Welch & Son | 78 | — | 9 | 1994-10-15 |
| 773 | Wadsworth Supply Co. | 78 | — | 3 | 1972-12-09 |
| 774 | Mellert (Kenneth A) | 78 | — | 4 | 1977-04-04 |
| 775 | Lowery (Harold R) | 77 | — | 8 | 1972-04-24 |
| 776 | Birch (M E) | 77 | — | 4 | 1976-12-08 |
| 777 | Davidson Drilling | 77 | — | 4 | 1991-09-03 |
| 778 | Whittaker Well Drilling | 77 | — | 4 | 1996-07-12 |
| 779 | Eddie's Well Drilling | 76 | — | 9 | 1988-12-01 |
| 780 | Scheideggers Pump Service | 76 | — | 7 | 1999-12-06 |
| 781 | Lacey Pasheilich Excavating | 76 | — | 6 | 2013-12-05 |
| 782 | Evans (Arthur) | 76 | — | 2 | 1988-09-22 |
| 783 | Hunter Drilling Co. | 75 | — | 3 | 1978-08-25 |
| 784 | Tackett (Chester) | 74 | — | 3 | 1974-07-01 |
| 785 | Combs (John O) | 74 | — | 10 | 1963-12-17 |
| 786 | Bean & Son | 74 | — | 4 | 1963-09-13 |
| 787 | Spears (Daniel E) | 73 | — | 2 | 1968-11-25 |
| 788 | Barker Well Drilling | 73 | — | 13 | 1995-06-06 |
| 789 | Davis (J C) | 73 | — | 6 | 1984-01-16 |
| 790 | Albert (D D) | 72 | — | 8 | 1969-07-30 |
| 791 | Green (James) | 72 | — | 6 | 1981-10-24 |
| 792 | Brothers Well Drilling | 72 | — | 10 | 1992-05-27 |
| 793 | Johns Bros Drilling | 72 | — | 5 | 1974-11-13 |
| 794 | Mcfarland Drilling Co. | 71 | — | 7 | 1996-05-31 |
| 795 | Delta Drilling | 71 | — | 4 | 1998-05-01 |
| 796 | Randles (Denver) | 71 | — | 5 | 1968-03-27 |
| 797 | Grim Water Systems | 71 | — | 7 | 2020-09-20 |
| 798 | Hottel (Glenn D) | 71 | — | 2 | 1971-09-04 |
| 799 | Action Well Drilling | 71 | — | 7 | 2005-12-26 |
| 800 | Notestine Drilling | 70 | — | 5 | 2001-09-05 |
| 801 | Edwards (Fred) | 70 | — | 2 | 1995-10-10 |
| 802 | T C Drilling | 70 | — | 4 | 2019-10-24 |
| 803 | K W Krock & Co. Inc. | 70 | — | 6 | 2004-05-07 |
| 804 | Lehman & Swartz | 70 | — | 4 | 1964-12-24 |
| 805 | Cole (C E) | 70 | — | 6 | 1970-10-13 |
| 806 | Heaton Drilling Co. | 69 | — | 3 | 1980-06-14 |
| 807 | Burfield Brothers | 69 | — | 6 | 1957-04-26 |
| 808 | Porter (M J & M S) | 69 | — | 4 | 1990-10-23 |
| 809 | Cray (Lowell) | 69 | — | 8 | 1981-05-04 |
| 810 | Gibbons Drilling | 69 | — | 3 | 1975-01-28 |
| 811 | Harply (Guy) | 68 | — | 7 | 1997-04-03 |
| 812 | Tester Well Drilling | 68 | — | 4 | 1997-04-09 |
| 813 | Steele (Robert) | 67 | — | 5 | 1968-08-27 |
| 814 | Null Well Drilling | 67 | — | 2 | 1987-12-12 |
| 815 | Ohio Rotary Drilling Co. Inc. | 66 | — | 27 | 1996-01-04 |
| 816 | Reinschell (Lowell) Drilling | 66 | — | 7 | 1994-06-29 |
| 817 | Burt (Leland) | 66 | — | 2 | 1966-10-04 |
| 818 | Floyd's Water Well Drilling | 66 | — | 9 | 1996-09-20 |
| 819 | Stahl (Michael) | 66 | — | 5 | 1973-01-26 |
| 820 | H & K Drilling | 66 | — | 4 | 1993-08-17 |
| 821 | Evans Drilling | 66 | — | 2 | 1991-03-06 |
| 822 | Ohlemacher (John J) | 66 | — | 2 | 1973-08-31 |
| 823 | Yates (John W) | 66 | — | 1 | 1950-07-08 |
| 824 | Larrick (Francis) | 65 | — | 2 | 1972-11-20 |
| 825 | Kennedy (Louie S) | 65 | — | 4 | 1969-02-10 |
| 826 | Cain Well Drilling | 64 | — | 6 | 2001-06-25 |
| 827 | Depew (Russell) Well Drilling | 64 | — | 5 | 2020-03-12 |
| 828 | Jobes & Jobes Drilling | 64 | — | 3 | 2001-11-01 |
| 829 | Big R Drilling | 64 | — | 2 | 1999-06-22 |
| 830 | Mack (Robert E) | 64 | — | 3 | 1967-12-30 |
| 831 | Koehne (Joseph B) | 63 | — | 6 | 1980-02-27 |
| 832 | Taggart Pump Repair & Well Drlg | 63 | — | 3 | 1961-11-04 |
| 833 | Charm Drilling | 63 | — | 5 | 1984-10-04 |
| 834 | Hall Drilling | 63 | — | 8 | 2017-11-20 |
| 835 | Tate Water Well Drilling | 63 | — | 5 | 2004-11-22 |
| 836 | Aicirtap Enterprises Inc. | 63 | — | 2 | 1981-10-19 |
| 837 | Notestone Well Drilling | 62 | — | 5 | 1994-09-24 |
| 838 | Hayes (Fred M) | 62 | — | 7 | 1958-12-04 |
| 839 | Wilson (Ricky) Drilling | 62 | — | 5 | 2012-08-02 |
| 840 | Aaa Well Drilling | 62 | — | 9 | 1990-01-01 |
| 841 | Snedden (Robert) Well Drilling | 62 | — | 2 | 1966-07-21 |
| 842 | Rammel (Ben) | 62 | — | 3 | 1969-06-20 |
| 843 | Fouts Drilling | 61 | — | 6 | 1995-08-17 |
| 844 | Vess Drilling | 61 | — | 6 | 2013-10-31 |
| 845 | Silver Fleet Drilling | 61 | — | 5 | 1973-11-03 |
| 846 | Blanton Supply | 61 | — | 2 | 1969-12-29 |
| 847 | Rhodes Inc. | 61 | — | 3 | 1970-08-14 |
| 848 | Mullins Well Drilling | 60 | — | 7 | 1987-11-23 |
| 849 | Wiley Drilling Co. | 60 | — | 4 | 2000-09-25 |
| 850 | Mccarty (Daniel) | 59 | — | 3 | 1983-01-03 |
| 851 | Morrison (R G) | 59 | — | 8 | 1978-01-07 |
| 852 | Miller Drilling | 59 | — | 16 | 1995-04-15 |
| 853 | Lehman & Lynn | 59 | — | 8 | 1971-12-22 |
| 854 | Jesse & Sons Well Drilling | 59 | — | 4 | 1996-08-04 |
| 855 | Dan D Frey & Son | 59 | — | 4 | 1968-03-15 |
| 856 | Darrell's Water Well Drilling | 58 | — | 7 | 2005-06-28 |
| 857 | Miami Well Service | 58 | — | 5 | 1989-06-06 |
| 858 | Underhill (James) | 58 | — | 7 | 1996-07-28 |
| 859 | Benedict Well Drilling | 58 | — | 4 | 1984-06-27 |
| 860 | Bob's Well Drilling Service | 58 | — | 4 | 1994-06-11 |
| 861 | B G Well & Pump | 58 | — | 7 | 2006-06-28 |
| 862 | Miller (O E) | 57 | — | 6 | 1969-08-27 |
| 863 | Albers (J J) | 57 | — | 5 | 1958-04-17 |
| 864 | Larry's Well Drilling | 57 | — | 5 | 2007-01-17 |
| 865 | William Fait Drilling | 56 | — | 12 | 2007-11-17 |
| 866 | Thomas Charles JR & Sons | 56 | — | 4 | 1964-09-28 |
| 867 | Mcgee Drilling | 56 | — | 4 | 1996-12-16 |
| 868 | Riser (H E) | 56 | — | 4 | 1985-10-19 |
| 869 | Water Well Drilling & Supply Co. | 56 | — | 7 | 1979-10-05 |
| 870 | Hass & Sons Drilling | 56 | — | 3 | 1995-06-30 |
| 871 | Gschwind (N J) | 56 | — | 3 | 1962-06-27 |
| 872 | Elmer Rowe Drilling | 55 | — | 2 | 1959-08-01 |
| 873 | C & H Water Well Drilling Co. | 55 | — | 4 | 1972-11-09 |
| 874 | Lamb (Floyd H) | 55 | — | 3 | 1972-09-02 |
| 875 | Smith (James H) & Sons | 54 | — | 9 | 1995-07-10 |
| 876 | Shorts (Wayne) Well Drilling | 54 | — | 8 | 1977-09-24 |
| 877 | Bromwell Water Well Drilling | 54 | — | 3 | 1979-09-22 |
| 878 | Stewart's Pump Shop | 54 | — | 2 | 1978-12-05 |
| 879 | Valley Well Drilling Co. | 53 | — | 9 | 1994-10-22 |
| 880 | Moran (John T) | 53 | — | 6 | 1997-01-04 |
| 881 | Baugh (C S) | 53 | — | 3 | 1969-08-14 |
| 882 | Woodworth (Elbert) Well Drilling | 52 | — | 6 | 2000-08-04 |
| 883 | Pickerington Well Drilling | 51 | — | 5 | 1979-06-23 |
| 884 | Marlatt Well Drilling | 51 | — | 3 | 1967-01-20 |
| 885 | Moore (Rodney) | 51 | — | 3 | 1996-03-19 |
| 886 | Roerig Well Drilling | 51 | — | 4 | 1980-10-12 |
| 887 | Natures Energies Drilling | 50 | — | 6 | 1990-05-15 |
| 888 | Likes Drilling & Trench | 50 | — | 5 | 1980-06-05 |
| 889 | Suburban Pump Shop | 50 | — | 3 | 1974-07-24 |
| 890 | Booker Well Drilling | 50 | — | 2 | 1990-10-26 |
| 891 | Larson (Robert) | 50 | — | 4 | 1971-07-10 |
| 892 | Neely (Kenneth) | 49 | — | 3 | 1994-02-25 |
| 893 | Denman Water Well Drilling | 49 | — | 4 | 1992-03-16 |
| 894 | Reinbolt (Chares S) | 49 | — | 2 | 1970-06-25 |
| 895 | Mccallister Drilling | 48 | — | 8 | 2002-10-14 |
| 896 | Haines (A M) | 48 | — | 4 | 1962-07-26 |
| 897 | Bethel (James) | 48 | — | 3 | 1967-08-30 |
| 898 | J & M Water | 48 | — | 4 | 2009-07-12 |
| 899 | L & R Drilling | 48 | — | 6 | 2014-05-18 |
| 900 | Hellwig (H M) & Sons | 48 | — | 3 | 1962-07-22 |
| 901 | Bergman Well Drilling | 48 | — | 3 | 1988-06-30 |
| 902 | Gresh Well Drilling | 48 | — | 1 | 1987-07-28 |
| 903 | Belasco Drilling Inc. | 47 | — | 22 | 2005-09-22 |
| 904 | Home Development Co. | 47 | — | 1 | 1999-05-14 |
| 905 | C & L Water Well Drilling | 47 | — | 4 | 1976-06-22 |
| 906 | Miller Brothers Drilling | 47 | — | 3 | 1967-09-10 |
| 907 | Roe (Donald J) | 47 | — | 9 | 1973-10-11 |
| 908 | Water Boy Drilling | 47 | — | 3 | 2013-07-13 |
| 909 | Cameron (Berlin A) | 47 | — | 4 | 1996-11-01 |
| 910 | Bill's Bit Service | 47 | — | 12 | 2000-03-30 |
| 911 | Stolzfus (Eli) | 47 | — | 3 | 1980-07-28 |
| 912 | Tom Myers Well Drilling | 47 | — | 3 | 1994-02-20 |
| 913 | Himes Well Drilling | 47 | — | 3 | 2007-12-31 |
| 914 | Stranges Drilling Co. | 47 | — | 2 | 1977-03-01 |
| 915 | Gillum Water Well Drilling | 46 | — | 7 | 1988-11-04 |
| 916 | Hudson (F E) | 46 | — | 8 | 1959-06-27 |
| 917 | Williams (J L) | 46 | — | 6 | 1986-04-05 |
| 918 | Ryan Well Drilling | 46 | — | 5 | 1992-07-22 |
| 919 | Shoemaker Drilling Inc. | 46 | — | 4 | 1985-07-26 |
| 920 | Weingart (E H) & Sons | 46 | — | 3 | 1961-09-07 |
| 921 | Sowders Well Drilling | 46 | — | 3 | 1985-09-12 |
| 922 | Whiting (W M) Drilling Co. | 46 | — | 4 | 1983-08-23 |
| 923 | Dean Drilling | 45 | — | 5 | 2005-06-03 |
| 924 | Tuthill (Russell E) | 45 | — | 4 | 1972-10-23 |
| 925 | Conway (Cecil D) | 45 | — | 3 | 1959-02-12 |
| 926 | Norman Drilling Company | 44 | — | 3 | 1967-06-22 |
| 927 | Bryan (Derral F) | 44 | — | 6 | 1978-07-18 |
| 928 | Bellamuy (Paul) | 44 | — | 5 | 1962-10-12 |
| 929 | Billman Drilling Co. | 44 | — | 2 | 1974-07-26 |
| 930 | Warrick (Glenn E) | 44 | — | 5 | 1962-10-31 |
| 931 | Lothes Drilling Inc. | 44 | — | 1 | 1993-11-29 |
| 932 | Mcintosh Water Well Drilling | 44 | — | 2 | 2004-10-25 |
| 933 | Musgrave Drilling | 44 | — | 3 | 1961-02-04 |
| 934 | Edwards Drilling & Excavating | 43 | — | 7 | 1995-09-20 |
| 935 | Thomas (Waldo C) | 43 | — | 5 | 1968-12-12 |
| 936 | Wogoman (H A) | 43 | — | 4 | 1961-03-30 |
| 937 | Dutro (M L) | 43 | — | 3 | 1956-07-31 |
| 938 | D & M Water Well Drilling | 43 | — | 2 | 2001-12-18 |
| 939 | Bevard (Larry) Well Drilling | 43 | — | 5 | 1996-03-26 |
| 940 | Delaney Well Drilling | 43 | — | 2 | 1979-11-20 |
| 941 | Massey Drilling Inc. | 43 | — | 6 | 1998-04-02 |
| 942 | Harmons Well Service | 43 | — | 1 | 2011-12-05 |
| 943 | Hall's Drilling | 42 | — | 6 | 1996-01-31 |
| 944 | Shanker Well Drilling | 42 | — | 5 | 1983-09-08 |
| 945 | Riser Frank Drilling | 42 | — | 3 | 1963-11-01 |
| 946 | Moran's Water Well Service | 42 | — | 3 | 2009-07-25 |
| 947 | Ashcraft Drilling | 42 | — | 2 | 2006-12-12 |
| 948 | Northwest Ohio Well Drilling | 42 | — | 5 | 1998-08-27 |
| 949 | Johnston (H A) | 41 | — | 7 | 1997-09-01 |
| 950 | Thompson (George A) | 41 | — | 7 | 1979-05-18 |
| 951 | Island Well Drilling | 41 | — | 1 | 1972-08-21 |
| 952 | Hamilton (G W) | 40 | — | 5 | 1960-10-28 |
| 953 | Hamilton (Frank S) | 40 | — | 6 | 1981-06-06 |
| 954 | Bevard (Carl) Well Drilling | 40 | — | 4 | 2010-11-23 |
| 955 | Woodward Water Well Drilling | 40 | — | 5 | 2000-05-24 |
| 956 | Hillman (Dewey) | 39 | — | 1 | 1959-08-02 |
| 957 | Keaton Drilling | 39 | — | 4 | 1978-09-19 |
| 958 | Campbell (Jake) | 39 | — | 2 | 1974-05-29 |
| 959 | Berry (Robert) Well Drilling | 39 | — | 3 | 1976-04-20 |
| 960 | Sapp (John E) | 39 | — | 2 | 1974-07-11 |
| 961 | Sowders-Colahan Well Drilling | 39 | — | 2 | 1981-04-10 |
| 962 | Diehl Pump & Supply Co. Inc. | 38 | — | 13 | 1977-01-19 |
| 963 | Mathews Well Drilling | 38 | — | 3 | 1998-07-04 |
| 964 | Acme Drilling Co. | 38 | — | 4 | 1960-11-30 |
| 965 | Mcconnell Well Drilling | 38 | — | 3 | 1981-01-30 |
| 966 | Bruce Breakall Well Drilling | 38 | — | 2 | 2005-03-12 |
| 967 | Kneisley & Horst | 38 | — | 2 | 1948-09-02 |
| 968 | Conway (Curtis C) | 38 | — | 2 | 1957-05-30 |
| 969 | Mcnichols & Son Drilling | 38 | — | 3 | 1972-07-17 |
| 970 | Thurber (Tom) Wells & Pump | 38 | — | 3 | 2007-06-01 |
| 971 | Pinson Brothers Drilling | 37 | — | 4 | 2015-10-30 |
| 972 | Myers (Russell E) | 37 | — | 11 | 1998-08-10 |
| 973 | Thrush Well Drilling | 37 | — | 4 | 1993-07-28 |
| 974 | Swingle (Robert) | 37 | — | 4 | 1963-09-14 |
| 975 | Timberlake (S B) | 37 | — | 3 | 1955-05-16 |
| 976 | Hill & Son | 37 | — | 3 | 1955-12-02 |
| 977 | Bischoff Drilling | 37 | — | 2 | 1993-06-08 |
| 978 | Bettis (Ray) | 37 | — | 2 | 1969-09-05 |
| 979 | Vernon Grim Well Drilling | 37 | — | 2 | 1972-11-15 |
| 980 | Robinson (Homer) | 36 | — | 12 | 1991-12-23 |
| 981 | Dodds (Robert C) | 36 | — | 4 | 1972-09-10 |
| 982 | Cap Drilling | 36 | — | 4 | 1989-08-18 |
| 983 | Stewart (James) | 36 | — | 2 | 2017-06-15 |
| 984 | Devore Drilling Co. | 36 | — | 4 | 1964-07-28 |
| 985 | Oddo Well Drilling | 36 | — | 4 | 2004-09-13 |
| 986 | Mcdaniel Well Drilling | 35 | — | 5 | 1983-10-29 |
| 987 | Dailey (Larry S) | 35 | — | 3 | 1966-06-01 |
| 988 | Gobel (Roger L) | 35 | — | 7 | 1986-08-01 |
| 989 | Dingess (Mansfield) Well Drilling | 35 | — | 5 | 1998-02-28 |
| 990 | Daley Drilling Co. | 35 | — | 2 | 1986-09-25 |
| 991 | Barger Well Drilling | 35 | — | 2 | 1979-06-20 |
| 992 | R & C Drilling Co. | 34 | — | 9 | 2005-07-27 |
| 993 | Ferguson (Terry) Drilling | 34 | — | 4 | 1997-03-08 |
| 994 | Snedden (Frank) & Sons | 34 | — | 3 | 1986-07-21 |
| 995 | Davis (Carl) | 34 | — | 6 | 1982-08-07 |
| 996 | Stoffer Drilling | 34 | — | 12 | 2004-11-15 |
| 997 | Nemeth Plumbing & Heating | 34 | — | 3 | 1965-10-21 |
| 998 | Culver (Don) | 34 | — | 3 | 1958-08-24 |
| 999 | Burrows (D K) | 34 | — | 3 | 1969-03-04 |
| 1000 | Stewart's Water Well Service | 34 | — | 2 | 2018-06-16 |
| 1001 | Wagner (Herbert W) & Son | 33 | — | 7 | 1993-05-24 |
| 1002 | Hamm (Everett G) | 33 | — | 7 | 1968-05-20 |
| 1003 | Moody & Associates Inc. | 33 | — | 11 | 2008-09-18 |
| 1004 | Varner (Lloyd) | 33 | — | 5 | 1961-11-18 |
| 1005 | Sater Well Drilling | 33 | — | 3 | 1990-06-07 |
| 1006 | Chuck Mock Water Well Drilling | 33 | — | 5 | 1995-05-19 |
| 1007 | Shorts (Russ) Well Drilling | 33 | — | 6 | 1988-07-23 |
| 1008 | Wilhelm's Drilling Service | 33 | — | 6 | 2000-10-28 |
| 1009 | Fesler (Donald) | 33 | — | 2 | 1968-08-28 |
| 1010 | Ron Johnson Drilling | 32 | — | 6 | 2020-09-22 |
| 1011 | Stone (Roy) | 32 | — | 5 | 1961-05-20 |
| 1012 | Glen T Speedy Drilling | 32 | — | 3 | 2002-03-06 |
| 1013 | J M Drilling | 32 | — | 11 | 2013-12-28 |
| 1014 | Northcoast Drilling Service Inc. | 32 | — | 7 | 2000-02-09 |
| 1015 | Starkey Water Well Drilling | 32 | — | 5 | 1983-08-06 |
| 1016 | Shetler Drilling | 32 | — | 2 | 1999-09-23 |
| 1017 | Spencer Associates | 32 | — | 3 | 1981-06-16 |
| 1018 | Ripley (S Glenn) | 32 | — | 6 | 1955-05-20 |
| 1019 | Acme Well Drilling Co. Inc. | 31 | — | 5 | 1959-10-19 |
| 1020 | A-1 Well Drilling | 31 | — | 8 | 1997-10-28 |
| 1021 | Miracle Well Drilling | 31 | — | 2 | 1982-09-10 |
| 1022 | Justice Drilling Co. | 31 | — | 5 | 1983-05-18 |
| 1023 | Ranger Drilling | 31 | — | 4 | 1993-09-25 |
| 1024 | Snider Drilling Co. | 31 | — | 3 | 1963-11-05 |
| 1025 | Tucker's Sales & Service Inc. | 31 | — | 4 | 2007-06-12 |
| 1026 | Newbury (Fred) | 31 | — | 3 | 1971-10-30 |
| 1027 | Tonkin Well Drilling | 31 | — | 3 | 1963-05-20 |
| 1028 | Bischoff Well Drilling | 31 | — | 1 | 1996-03-01 |
| 1029 | Hoffman's Water Well Service | 30 | — | 8 | 2000-08-24 |
| 1030 | J D Short Well Drilling | 30 | — | 6 | 2006-09-27 |
| 1031 | Bowser-Morner (Dayton) | 30 | — | 15 | 2006-08-18 |
| 1032 | Campbell (Robert) | 30 | — | 4 | 1976-06-04 |
| 1033 | K & K Well Drilling | 30 | — | 4 | 2007-09-04 |
| 1034 | Snook Well Drilling Company | 30 | — | 4 | 1961-10-28 |
| 1035 | Summers (Kenneth) | 30 | — | 5 | 1958-06-11 |
| 1036 | Smith (J M) Water Well Drilling | 30 | — | 8 | 2016-03-17 |
| 1037 | Adams Drilling | 30 | — | 5 | 2005-05-27 |
| 1038 | Book & Proch Well Drilling Inc. | 30 | — | 6 | 2021-09-03 |
| 1039 | Donelson (Allen) | 30 | — | 3 | 1991-02-01 |
| 1040 | Beach Drilling | 30 | — | 3 | 1999-11-15 |
| 1041 | Witters (Ozro) | 29 | — | 2 | 1959-10-02 |
| 1042 | Matz (L A) | 29 | — | 3 | 1966-06-20 |
| 1043 | Terry & Sons Water Well Drilling | 29 | — | 5 | 2000-11-21 |
| 1044 | M & S Drilling | 29 | — | 5 | 1978-03-23 |
| 1045 | Lewis & Son Well Drilling | 29 | — | 4 | 1991-06-01 |
| 1046 | Bloo Drilling | 29 | — | 5 | 1997-11-26 |
| 1047 | Buckeye Drilling | 29 | — | 7 | 1964-09-18 |
| 1048 | Weekley Well Drilling | 29 | — | 4 | 1983-07-23 |
| 1049 | Northeast Water Well Drilling | 29 | — | 3 | 2014-08-19 |
| 1050 | Estes & Estes Well Drilling | 28 | — | 6 | 1976-11-11 |
| 1051 | Holden Water Well Drilling | 28 | — | 1 | 1997-11-15 |
| 1052 | C & R Water Well Drilling | 28 | — | 9 | 2002-12-12 |
| 1053 | Aqua Spring Well Drilling | 28 | — | 13 | 1996-05-10 |
| 1054 | Clark Drilling Co. | 28 | — | 8 | 1979-04-18 |
| 1055 | Clingerman (L D) | 28 | — | 1 | 1964-08-25 |
| 1056 | Booksing Drilling | 28 | — | 2 | 1982-10-02 |
| 1057 | Gephart (David F) | 28 | — | 1 | 1970-09-25 |
| 1058 | Johnson Excavating | 27 | — | 9 | 1995-12-05 |
| 1059 | Taylor Outfit | 27 | — | 1 | 1974-08-01 |
| 1060 | Hicks Well Drilling & Pump Service | 27 | — | 5 | 1995-10-04 |
| 1061 | Mayle (Paul A) | 27 | — | 3 | 1996-10-07 |
| 1062 | J R Riley Drilling | 27 | — | 4 | 2004-10-01 |
| 1063 | Triple J Drilling (Newark) | 27 | — | 6 | 2017-09-18 |
| 1064 | Harper (W H) | 27 | — | 9 | 1998-07-30 |
| 1065 | Plummer (Walter) | 27 | — | 4 | 1963-07-10 |
| 1066 | Walls (Wayne) | 26 | — | 7 | 1999-04-02 |
| 1067 | Gone Deep Water Well (Bengi) | 26 | — | 5 | 2016-11-29 |
| 1068 | Law (Ora R) | 26 | — | 4 | 1968-08-21 |
| 1069 | W & W Drilling Co. | 26 | — | 5 | 1996-10-15 |
| 1070 | Fisher (ED) | 26 | — | 2 | 1973-05-18 |
| 1071 | Vance Well Drilling | 26 | — | 4 | 2000-03-07 |
| 1072 | Western Reserve Drlg & Equip Co. | 26 | — | 3 | 1978-08-10 |
| 1073 | Waldron (Gordon E) | 26 | — | 1 | 1964-03-01 |
| 1074 | Miskimins (Homer) | 26 | — | 3 | 1990-04-09 |
| 1075 | F & S Well Drilling | 25 | — | 5 | 1996-11-02 |
| 1076 | Sand Run Drilling Co. | 25 | — | 6 | 1971-12-01 |
| 1077 | Burgess Water Well Drilling | 25 | — | 6 | 1995-05-23 |
| 1078 | Mckee Well Drilling | 25 | — | 6 | 1998-11-21 |
| 1079 | Roof (Richard) | 25 | — | 2 | 1972-10-13 |
| 1080 | Alexander Well Drilling | 25 | — | 2 | 2002-12-04 |
| 1081 | Spencer (Marvin J) | 25 | — | 3 | 1965-09-08 |
| 1082 | Garrison (Dorwin) | 25 | — | 3 | 1967-12-01 |
| 1083 | Saunders Well Drilling | 25 | — | 4 | 1998-11-07 |
| 1084 | Lee's Pump & Well Service | 25 | — | 4 | 1991-08-10 |
| 1085 | Gordon & Sons Water Well Drilling | 25 | — | 5 | 2020-11-11 |
| 1086 | Tiplady Drillng | 25 | — | 3 | 1988-04-12 |
Best well drillers by county
County-level rankings — who actually drills where, by wells on record.
- Adams County (33)
- Allen County (83)
- Ashland County (86)
- Ashtabula County (86)
- Athens County (56)
- Auglaize County (66)
- Belmont County (61)
- Brown County (30)
- Butler County (85)
- Carroll County (132)
- Champaign County (105)
- Clark County (147)
- Clermont County (41)
- Clinton County (85)
- Columbiana County (135)
- Coshocton County (136)
- Crawford County (88)
- Cuyahoga County (118)
- Darke County (95)
- Defiance County (57)
- Delaware County (137)
- Erie County (58)
- Fairfield County (204)
- Fayette County (103)
- Franklin County (206)
- Fulton County (74)
- Gallia County (33)
- Geauga County (143)
- Greene County (147)
- Guernsey County (90)
- Hamilton County (51)
- Hancock County (79)
- Hardin County (87)
- Harrison County (89)
- Henry County (74)
- Highland County (69)
- Hocking County (119)
- Holmes County (106)
- Huron County (86)
- Jackson County (34)
- Jefferson County (50)
- Knox County (155)
- Lake County (55)
- Lawrence County (22)
- Licking County (265)
- Logan County (100)
- Lorain County (60)
- Lucas County (105)
- Madison County (148)
- Mahoning County (181)
- Marion County (84)
- Medina County (185)
- Meigs County (44)
- Mercer County (43)
- Miami County (137)
- Monroe County (52)
- Montgomery County (175)
- Morgan County (79)
- Morrow County (114)
- Muskingum County (147)
- Noble County (49)
- Ottawa County (104)
- Paulding County (34)
- Perry County (162)
- Pickaway County (155)
- Pike County (52)
- Portage County (247)
- Preble County (107)
- Putnam County (49)
- Richland County (104)
- Ross County (112)
- Sandusky County (105)
- Scioto County (42)
- Seneca County (91)
- Shelby County (73)
- Stark County (222)
- Summit County (227)
- Trumbull County (126)
- Tuscarawas County (129)
- Union County (130)
- Van Wert County (47)
- Vinton County (57)
- Warren County (119)
- Washington County (59)
- Wayne County (193)
- Williams County (52)
- Wood County (124)
- Wyandot County (79)
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