| 1 | Weninger Drilling, LLC | 6,871 | 1,845 | 16 | 2026-08-10 |
| 2 | Premier Pump & Well Service, Inc. | 3,643 | 1,033 | 12 | 2026-07-06 |
| 3 | Rosencrantz-Bemis Enterprises, Inc. | 11,621 | 928 | 55 | 2026-08-06 |
| 4 | Chase Drilling | 4,761 | 855 | 15 | 2026-08-17 |
| 5 | East Wichita Well & Pump Service LLC | 1,186 | 743 | 3 | 2026-07-28 |
| 6 | Miller Drilling | 7,473 | 726 | 15 | 2026-08-17 |
| 7 | Harp Well & Pump Service, Inc. | 22,219 | 596 | 15 | 2026-08-03 |
| 8 | Peterson Mcnett Drilling, Inc. | 1,260 | 487 | 28 | 2025-12-10 |
| 9 | Associated Drilling, Inc. #990 | 479 | 479 | 35 | 2026-06-19 |
| 10 | Bearden Pump & Well Service | 2,452 | 454 | 6 | 2026-03-07 |
| 11 | Rosencrantz-Bemis Ent. | 748 | 445 | 37 | 2025-10-15 |
| 12 | Flint Hills Drlg #914 | 531 | 421 | 32 | 2026-07-16 |
| 13 | Backhus Well Drilling, LLC | 721 | 369 | 11 | 2026-06-09 |
| 14 | Associated Drilling, Inc. | 1,922 | 331 | 58 | 2026-08-14 |
| 15 | 4 Brothers LLC | 290 | 259 | 12 | 2026-08-20 |
| 16 | Mcpherson Drilling Co. | 368 | 255 | 11 | 2026-07-15 |
| 17 | Crowdis Water Well Service, LLC | 1,173 | 243 | 18 | 2026-07-29 |
| 18 | H2o Drilling | 370 | 241 | 18 | 2026-05-14 |
| 19 | Premier Pump & Well Srvc #238 | 188 | 187 | 10 | 2026-06-11 |
| 20 | Jessica Hauserman | 330 | 161 | 8 | 2026-08-28 |
| 21 | Karst Water Well Drlg | 330 | 159 | 17 | 2025-07-30 |
| 22 | Woofter Pump & Well #881 | 239 | 157 | 18 | 2025-11-05 |
| 23 | Karst Water Well Drilling & Service, Inc. | 1,664 | 152 | 19 | 2026-08-03 |
| 24 | Hydro Resources Mid Continent, Inc. | 1,533 | 151 | 24 | 2026-07-30 |
| 25 | Downey Drilling, Inc. | 370 | 151 | 19 | 2026-06-15 |
| 26 | KP Hydrotech | 151 | 150 | 9 | 2026-07-16 |
| 27 | Harp Well & Pump Srvc | 261 | 149 | 4 | 2025-10-02 |
| 28 | Hydro Res. Mid Continent #145 | 307 | 133 | 18 | 2026-01-07 |
| 29 | Crowdis WW Srvc | 205 | 132 | 14 | 2025-11-17 |
| 30 | Downey Drlg #748 | 189 | 126 | 25 | 2025-10-22 |
| 31 | Blue Valley Drilling | 1,448 | 116 | 20 | 2026-03-30 |
| 32 | Nash WW Srvc | 187 | 115 | 19 | 2025-04-24 |
| 33 | Haldeman Well Drilling & Pump Service | 1,195 | 113 | 19 | 2026-07-15 |
| 34 | SW Windmill & WW Srvc | 126 | 95 | 11 | 2025-11-04 |
| 35 | Nash Water Well Service, LLC | 410 | 87 | 26 | 2026-05-04 |
| 36 | East Wichita Well & Pump Srvc | 87 | 87 | 4 | 2025-11-18 |
| 37 | Jantzen Water Well | 452 | 84 | 16 | 2026-07-10 |
| 38 | Wilson Water Systems | 430 | 84 | 2 | 2026-07-28 |
| 39 | Clarke Well & Equip. | 107 | 83 | 24 | 2025-04-28 |
| 40 | Kemp's Well Service #213 | 98 | 82 | 6 | 2025-08-09 |
| 41 | Peterson Drilling, LLC | 76 | 76 | 12 | 2026-07-22 |
| 42 | Dudley Wiegand | 75 | 73 | 6 | 2026-06-06 |
| 43 | Numac LLC | 73 | 73 | 13 | 2025-08-21 |
| 44 | Sargent Drlg #946 | 84 | 70 | 18 | 2026-07-21 |
| 45 | Ground Water Development | 61 | 61 | 6 | 2026-08-15 |
| 46 | Woofter Pump & Well, Inc. | 1,939 | 60 | 47 | 2026-07-14 |
| 47 | Reiserer Well Drilling | 791 | 59 | 8 | 2026-05-15 |
| 48 | Southwest Windmill And Water Well Service, Inc. | 553 | 58 | 16 | 2026-05-08 |
| 49 | Wilcox Well Drilling, LLC | 386 | 54 | 8 | 2026-08-11 |
| 50 | Aqua Pump #489 | 85 | 51 | 9 | 2025-07-11 |
| 51 | Clarke Well And Equipment, Inc. | 4,014 | 50 | 65 | 2026-05-19 |
| 52 | Jonagan Water Well Service LLC | 339 | 49 | 8 | 2026-05-11 |
| 53 | Yoakum Well Drilling, LLC | 47 | 47 | 15 | 2025-03-01 |
| 54 | Evans Energy Development #1011 | 45 | 45 | 11 | 2026-05-22 |
| 55 | Greenstreet Well Srvc | 46 | 43 | 3 | 2026-07-17 |
| 56 | Aqua Pump LLC | 406 | 41 | 13 | 2026-06-17 |
| 57 | Cody Werner | 41 | 41 | 4 | 2026-08-20 |
| 58 | Rgn Company, Inc. | 41 | 41 | 8 | 2026-01-12 |
| 59 | Glen Chase Drilling | 141 | 39 | 13 | 2026-05-15 |
| 60 | Funkee Drilling | 61 | 38 | 5 | 2026-06-22 |
| 61 | Euler Water Well Drilling | 50 | 38 | 15 | 2026-06-15 |
| 62 | GT Water Well Drilling LLC | 38 | 38 | 10 | 2026-06-25 |
| 63 | Watson Well Drilling | 302 | 36 | 6 | 2024-07-05 |
| 64 | B & B Drilling | 655 | 35 | 19 | 2025-05-29 |
| 65 | Stepbrothers Water Drlg | 44 | 33 | 7 | 2025-06-23 |
| 66 | Peterson Drilling - #1079 | 32 | 32 | 14 | 2026-02-25 |
| 67 | Digger Jim | 38 | 31 | 6 | 2025-10-20 |
| 68 | Evans Energy Development #1012 | 30 | 30 | 12 | 2025-07-14 |
| 69 | Driskill Drilling LLC | 30 | 30 | 2 | 2026-07-27 |
| 70 | Jesse Yoakum Well Drilling | 302 | 29 | 21 | 2026-06-06 |
| 71 | Evel Windmill Repair | 56 | 26 | 4 | 2025-04-24 |
| 72 | Equus Beds Gmd 2 | 25 | 25 | 5 | 2026-07-21 |
| 73 | Rmd Drlg. & Well Srvc | 25 | 23 | 5 | 2023-05-24 |
| 74 | Howard Drilling Co. | 309 | 22 | 16 | 2026-03-03 |
| 75 | L & N Pump | 33 | 22 | 7 | 2026-04-14 |
| 76 | Rieschick Drilling Co. | 209 | 20 | 14 | 2026-04-22 |
| 77 | Kansas Water Wells | 27 | 20 | 3 | 2024-08-23 |
| 78 | Drill-Well, LLC | 130 | 17 | 13 | 2023-11-14 |
| 79 | Double J Energy | 54 | 14 | 13 | 2023-04-25 |
| 80 | Zinn Water Well Drlg. | 842 | 13 | 10 | 2024-07-16 |
| 81 | Kemp's Well Service | 130 | 13 | 6 | 2026-08-04 |
| 82 | Burton Well Drilling, Inc. | 118 | 13 | 7 | 2025-04-30 |
| 83 | Lehl & Son Water Well Drilling | 76 | 13 | 5 | 2026-07-27 |
| 84 | Brenn Pump & Supply | 73 | 13 | 4 | 2025-11-14 |
| 85 | Midwest Well & Pump, Inc. | 984 | 12 | 21 | 2026-01-14 |
| 86 | Halling Water Well Service | 63 | 12 | 9 | 2026-06-15 |
| 87 | Layne-Christensen Co. | 1,076 | 10 | 70 | 2025-10-29 |
| 88 | Hobbs Mechanical, Inc. | 113 | 9 | 4 | 2023-09-12 |
| 89 | Premier Pump & Well Service, Inc. #238 | 111 | 8 | 10 | 2022-03-24 |
| 90 | Rork Drilling | 48 | 8 | 6 | 2025-09-11 |
| 91 | Carl Vincent Service | 366 | 7 | 4 | 2023-10-04 |
| 92 | Peterson Irrigation, Inc. | 3,499 | 6 | 43 | 2022-09-09 |
| 93 | Geocore Services Inc. | 327 | 6 | 28 | 2022-12-27 |
| 94 | Holdrege Well Service | 77 | 6 | 5 | 2026-01-06 |
| 95 | Mel's Pump & Plumbing, Inc. | 72 | 6 | 6 | 2025-07-17 |
| 96 | Hydro Resources Mid Continent, Inc. #145 | 51 | 6 | 12 | 2022-02-23 |
| 97 | Rmd Drilling & Well Service, LLC | 96 | 5 | 9 | 2022-02-15 |
| 98 | H20 Drilling | 87 | 5 | 9 | 2025-11-19 |
| 99 | Tribal Water Well Drilling | 25 | 5 | 5 | 2023-05-12 |
| 100 | Central Kansas Drilling | 881 | 3 | 9 | 2022-04-20 |
| 101 | Evans Energy Development, Inc. | 693 | 3 | 18 | 2024-07-11 |
| 102 | Lyman's, Inc. | 337 | 3 | 10 | 2024-03-16 |
| 103 | Williams Drilling Co., Inc. | 224 | 3 | 6 | 2022-02-02 |
| 104 | Kdot | 101 | 2 | 36 | 2026-02-13 |
| 105 | Patchen Pump & Well Drlg., Inc. | 88 | 2 | 11 | 2023-08-17 |
| 106 | Western Sprinklers Inc. | 86 | 2 | 15 | 2025-02-07 |
| 107 | Schaal Drilling Co. | 50 | 2 | 9 | 2025-11-21 |
| 108 | Bushell Water Well Drilling And Service | 30 | 2 | 5 | 2026-08-21 |
| 109 | Bartel Well Drilling, Inc. | 1,086 | 1 | 12 | 2022-04-23 |
| 110 | Dean L. Lyman, Inc. | 1,031 | 1 | 8 | 2023-11-07 |
| 111 | Tyler Water Well, Inc. | 304 | 1 | 24 | 2022-08-01 |
| 112 | Redinger Well Service | 84 | 1 | 4 | 2022-09-20 |
| 113 | K-W Oil Well Service, Inc. | 79 | 1 | 14 | 2025-04-15 |
| 114 | Evans Energy Development #953 | 54 | 1 | 11 | 2025-07-01 |
| 115 | H.d.c. AG, LLC | 38 | 1 | 9 | 2026-03-26 |
| 116 | Kelly's Water Well Service, Inc. | 8,942 | — | 47 | 2019-07-24 |
| 117 | Strader Drilling Co., Inc. | 4,132 | — | 25 | 2010-08-20 |
| 118 | Jerome Weninger Drilling, Inc. | 3,108 | — | 7 | 2006-03-03 |
| 119 | Rick Chase Water Well Drilling | 2,682 | — | 9 | 2021-05-13 |
| 120 | Henkle Drilling & Supply Co. Inc. | 2,375 | — | 32 | 2010-08-31 |
| 121 | Minter-Wilson Drlg. Co., Inc. | 2,329 | — | 27 | 2014-12-10 |
| 122 | Jay C. Woofter Pump & Well, Inc. | 1,862 | — | 50 | 2014-04-16 |
| 123 | Pestinger Pump & Water Well Drlg., Inc. | 1,799 | — | 9 | 2018-12-10 |
| 124 | Backhus Drilling | 1,560 | — | 12 | 2018-06-11 |
| 125 | Bernard E. Carlile Water Well Service, Inc. | 1,503 | — | 16 | 1989-12-29 |
| 126 | Howard Drilling Company AG, LLC | 1,453 | — | 17 | 2021-09-18 |
| 127 | Rudolph J. Reiser Water Well Service, Inc. | 1,435 | — | 24 | 1992-01-28 |
| 128 | Sam's Water Well Service | 1,433 | — | 27 | 1995-12-21 |
| 129 | Joe's Well Service, Inc. | 1,418 | — | 21 | 2012-01-15 |
| 130 | Paul H. Backhus Drilling | 1,237 | — | 8 | 2010-09-02 |
| 131 | Central Well & Pump, Inc. | 1,186 | — | 21 | 1986-11-25 |
| 132 | Price Water Well Service | 1,121 | — | 4 | 1994-05-27 |
| 133 | Carl Hayse Water Well Service | 1,002 | — | 18 | 2009-06-10 |
| 134 | Weishaar Drilling & Supply, Inc. | 893 | — | 11 | 1989-06-01 |
| 135 | Andy Anderson Drilling | 882 | — | 16 | 2012-06-22 |
| 136 | Charles Winter Well Drilling | 861 | — | 7 | 2010-06-18 |
| 137 | Michael Peterson Irrigation, Inc. | 844 | — | 26 | 2004-07-13 |
| 138 | Charles C. Myers Water Well Service | 807 | — | 25 | 1986-12-05 |
| 139 | Walter Woofter Pump & Well | 801 | — | 23 | 1992-06-01 |
| 140 | Cornie Friesen Windmill And Supply Co. | 788 | — | 21 | 1993-03-26 |
| 141 | G & S Drilling, Inc. | 768 | — | 7 | 2003-08-27 |
| 142 | Craig Haldeman Well Drilling & Pump Service | 739 | — | 17 | 2010-10-11 |
| 143 | T & W Water Well Serv., Inc. | 711 | — | 16 | 1992-06-12 |
| 144 | Paul Pestinger Pump & Water Well Drlg., Inc. | 679 | — | 7 | 2012-03-06 |
| 145 | John E. Luea Water Well Drilling | 646 | — | 5 | 1997-04-02 |
| 146 | ED Jantzen Water Well Repair | 601 | — | 11 | 2019-01-29 |
| 147 | Gerald Houck Bros. Drilling Co. | 562 | — | 12 | 1999-12-22 |
| 148 | James Munyon, JM Enterprises | 542 | — | 1 | 2019-04-10 |
| 149 | Bartell Drilling & Machine Works | 533 | — | 14 | 2007-08-15 |
| 150 | Pratt Well Service, Inc. | 529 | — | 26 | 2016-04-15 |
| 151 | Curtis J. Weninger Irrigation | 523 | — | 11 | 2008-07-28 |
| 152 | Jerry Reiserer Well Drilling | 519 | — | 5 | 2009-06-17 |
| 153 | Destal Tyler Water Well Service | 505 | — | 24 | 2011-08-01 |
| 154 | Richard Henkle Drilling & Supply Co. Inc. | 482 | — | 14 | 2004-05-07 |
| 155 | Melvin B. Karst Water Well Drilling & Service, Inc. | 481 | — | 16 | 2010-09-28 |
| 156 | Associated Environmental, Inc. | 472 | — | 32 | 2020-02-04 |
| 157 | Raphael Breuer, Inc. | 460 | — | 10 | 1999-11-14 |
| 158 | Craig Roberts Co. | 458 | — | 5 | 2001-02-22 |
| 159 | Paul's Incorporated | 440 | — | 9 | 1986-10-23 |
| 160 | O.s. Fent Hydraulic Drilling Company | 440 | — | 9 | 1986-10-08 |
| 161 | Richard O. Kelley Drilling Co. | 433 | — | 7 | 2011-07-01 |
| 162 | Jet Water Well Drilling | 429 | — | 5 | 1997-10-03 |
| 163 | Western Well & Pump, Inc. | 401 | — | 16 | 1985-04-09 |
| 164 | Dal Wells Drilling Co. | 393 | — | 8 | 2002-07-30 |
| 165 | Cox-Beswick Irrigation Service, Inc. | 382 | — | 14 | 1998-06-30 |
| 166 | Harold Strader Drilling Company | 380 | — | 10 | 2005-02-28 |
| 167 | Daniel H. Hoobler Drilling Co. | 375 | — | 12 | 2007-11-29 |
| 168 | Joseph M. Miller Water Well Service | 373 | — | 8 | 1980-08-27 |
| 169 | Richard D. Braddy Water Wells | 363 | — | 5 | 1984-09-22 |
| 170 | Dean Waterhouse Drilling | 362 | — | 8 | 1993-01-26 |
| 171 | Layne-Western | 351 | — | 47 | 2004-10-29 |
| 172 | Daryl Cox & Sons, Inc. | 340 | — | 17 | 1986-01-10 |
| 173 | Tom Patchen Pump & Well Drlg. | 315 | — | 7 | 2010-09-29 |
| 174 | Donald R. Dunham Drilling, Inc. | 313 | — | 7 | 2010-09-20 |
| 175 | Schoenrogge Drilling, Inc. | 310 | — | 4 | 2011-02-04 |
| 176 | Dan Hayse Water Well Service | 310 | — | 11 | 2015-04-20 |
| 177 | Ruben T. Schaal Drilling Co. | 302 | — | 7 | 2012-07-05 |
| 178 | Robert L. Sharp Water Well Services | 299 | — | 13 | 2004-12-01 |
| 179 | Blue Jay Drilling Co., Inc. | 291 | — | 15 | 1988-07-23 |
| 180 | Leroy Maruhn Well Drilling, Inc. | 279 | — | 6 | 2004-02-10 |
| 181 | Geo Cox & Sons, Inc. | 276 | — | 14 | 1978-01-25 |
| 182 | Ronald Lehl's Water Well Service | 263 | — | 2 | 2008-12-11 |
| 183 | R & A Water Well Service | 263 | — | 2 | 2015-04-27 |
| 184 | Brant E. Rader Drilling Co. | 262 | — | 10 | 1980-07-09 |
| 185 | Otis Bearden, Wayne Bearden | 253 | — | 2 | 1987-05-13 |
| 186 | Leo J. Stalder Drilling | 251 | — | 3 | 2005-09-26 |
| 187 | Jack W. Robison Well Drilling | 239 | — | 13 | 1989-11-14 |
| 188 | Chas. Sargent Irrigation Co., Inc. | 236 | — | 17 | 2019-06-20 |
| 189 | Grogan Ebberts Drilling | 233 | — | 14 | 2005-10-27 |
| 190 | Jonagan Drilling Co. | 228 | — | 9 | 2009-11-21 |
| 191 | John Fawcett Drilling Co. | 214 | — | 5 | 1987-09-10 |
| 192 | Keith Pfannenstiel Water Well Service | 214 | — | 3 | 2011-03-26 |
| 193 | Winter Well Drilling | 211 | — | 7 | 2012-12-20 |
| 194 | Ezra Miller Water Well Service | 208 | — | 5 | 1982-11-25 |
| 195 | Flint Hills Drilling | 206 | — | 32 | 2021-06-29 |
| 196 | Merle Cragg Water Well Drlg | 200 | — | 7 | 1984-12-09 |
| 197 | Ace-HI International, Inc. | 197 | — | 10 | 1980-05-06 |
| 198 | Red Tiger Drilling Co. | 194 | — | 32 | 1992-04-07 |
| 199 | Frank Budde Well Drilling | 192 | — | 5 | 1996-04-29 |
| 200 | Breuer Drilling Co. | 190 | — | 4 | 1977-06-30 |
| 201 | High Plains Drilling & Supply | 189 | — | 16 | 1997-04-20 |
| 202 | D & R Pump Service, LLC | 188 | — | 12 | 2016-11-30 |
| 203 | Mcnee Drilling & Metals | 181 | — | 7 | 2019-03-11 |
| 204 | Ellsworth Co. Water Quality Coordinator | 180 | — | 2 | 2010-03-17 |
| 205 | James Ray Smith Pump Service | 180 | — | 17 | 1996-12-18 |
| 206 | Kenneth Schutz Drilling | 180 | — | 3 | 2003-10-15 |
| 207 | Glenn J. Protheroe Pump & Well Service | 179 | — | 1 | 1986-08-30 |
| 208 | Leon Weber Well Service | 173 | — | 6 | 1997-10-24 |
| 209 | M & D Well Service | 173 | — | 6 | 2012-09-30 |
| 210 | Sargent Drilling | 168 | — | 19 | 2020-12-10 |
| 211 | Charles Eldred Harper Drilling Service | 168 | — | 7 | 1986-05-09 |
| 212 | S & H Drilling Co., Inc. | 164 | — | 8 | 1980-05-02 |
| 213 | Ray Cramer Drilling Co. | 164 | — | 14 | 2003-01-27 |
| 214 | Ralph S. Metzger Well Digger Drilling | 161 | — | 3 | 1995-05-06 |
| 215 | Ktm Drilling, Inc. | 161 | — | 7 | 1998-02-26 |
| 216 | F. E. Young Drilling Co., Inc. | 160 | — | 10 | 2006-07-17 |
| 217 | Leroy A. Risley | 160 | — | 1 | 1992-11-17 |
| 218 | Leo Knoefler Drilling | 158 | — | 5 | 1991-12-10 |
| 219 | Country Water | 157 | — | 4 | 1986-07-18 |
| 220 | Aqua Well Drilling | 155 | — | 7 | 1987-07-29 |
| 221 | Edgar Swank Water Well Drilling | 151 | — | 8 | 1994-09-21 |
| 222 | Mike Flowers Drilling & Pump Service | 149 | — | 8 | 2002-09-20 |
| 223 | Yellow Jacket Drilling | 144 | — | 12 | 2006-06-23 |
| 224 | Pfannenstiel Water Well Service | 143 | — | 10 | 2019-10-12 |
| 225 | Royce Swank Drilling | 141 | — | 6 | 1989-08-16 |
| 226 | Bearden Pump & Well Ser. | 138 | — | 3 | 2010-06-18 |
| 227 | L.h. Krause Shop | 138 | — | 5 | 1989-12-12 |
| 228 | Hank Bruse Water Well Service | 134 | — | 5 | 1986-06-13 |
| 229 | Rainey Water Well | 134 | — | 9 | 2015-09-19 |
| 230 | Jack Goodman Water Well Drilling | 129 | — | 6 | 2007-10-14 |
| 231 | 21st Electric, Inc. | 129 | — | 3 | 1981-07-13 |
| 232 | A.j. Foust Supply Co. Inc. | 128 | — | 5 | 1981-09-04 |
| 233 | MW Drilling | 127 | — | 3 | 1998-09-02 |
| 234 | Maruhn Well Drilling, Inc. | 127 | — | 8 | 2000-10-09 |
| 235 | Everett Miller Gearhead & Pump Repair | 123 | — | 19 | 1992-12-11 |
| 236 | Dennis Metz Water Well Service | 118 | — | 2 | 1993-04-21 |
| 237 | Krause Pump & Supply | 115 | — | 5 | 1986-09-05 |
| 238 | United Water Well & Pump, Inc. | 113 | — | 7 | 1989-05-30 |
| 239 | Dale Shuck Drilling Co. | 109 | — | 4 | 2010-08-23 |
| 240 | Donald J. Darling Drilling Co. | 108 | — | 10 | 1978-05-10 |
| 241 | Ark Valley Pump And Supply | 107 | — | 10 | 2013-10-02 |
| 242 | Donald Fulton Drilling Co. | 107 | — | 14 | 1993-04-17 |
| 243 | Charles Cummings Well Service | 106 | — | 5 | 1989-08-17 |
| 244 | Town & Country Water Well Service, LLC | 105 | — | 6 | 2020-08-21 |
| 245 | Stout's Water Well Service, Inc. | 105 | — | 2 | 2003-09-29 |
| 246 | Ron Williams Drilling Co., Inc. | 102 | — | 6 | 2010-03-22 |
| 247 | Fudge Drilling | 101 | — | 4 | 1998-06-11 |
| 248 | Gsi Engineering, LLC | 100 | — | 4 | 2021-07-08 |
| 249 | Harold L. Pettit | 99 | — | 2 | 1986-05-01 |
| 250 | D & L Drilling Co. | 96 | — | 13 | 1979-09-10 |
| 251 | Edgar Swank Drlg & Pump Repair | 95 | — | 7 | 1991-12-03 |
| 252 | Martin Supply | 94 | — | 4 | 1992-06-02 |
| 253 | Martin's Well Service | 94 | — | 15 | 2021-12-21 |
| 254 | Ksu | 92 | — | 61 | 2012-10-16 |
| 255 | Murray Wike Well Drilling | 89 | — | 3 | 1978-08-23 |
| 256 | Bushell Water Well Service | 87 | — | 9 | 2021-11-07 |
| 257 | Abc Water Well Service | 87 | — | 2 | 1986-10-07 |
| 258 | Jack Poore Drilling Inc. | 85 | — | 7 | 1982-03-10 |
| 259 | Sterling Drilling Co. | 84 | — | 9 | 1996-11-02 |
| 260 | Clt Inc. | 83 | — | 16 | 2007-09-04 |
| 261 | Darrell D. Redinger Drilling & Trenching | 79 | — | 5 | 1995-04-04 |
| 262 | Meyer Well Drilling | 78 | — | 2 | 2018-10-16 |
| 263 | Carl Thoman & Son | 78 | — | 3 | 1986-08-14 |
| 264 | Gottschalk Well Drilling | 78 | — | 6 | 2014-06-03 |
| 265 | Jerry D Popplewell Well Boring | 76 | — | 4 | 1991-09-30 |
| 266 | Jones Construction | 76 | — | 3 | 2019-04-22 |
| 267 | George Kemp's Well Service | 75 | — | 2 | 2010-10-04 |
| 268 | H.r. Swank | 74 | — | 5 | 1969-02-21 |
| 269 | Paul Slocum Water Well Drilling | 74 | — | 5 | 1980-12-17 |
| 270 | Albert & Roland Brau Drlg Co., Inc. | 73 | — | 5 | 1990-05-21 |
| 271 | Pestinger Pump Service | 71 | — | 3 | 2017-10-17 |
| 272 | Southwest Windmill | 71 | — | 4 | 2004-10-19 |
| 273 | Martin Water Well Drilling | 70 | — | 5 | 2002-09-25 |
| 274 | James F. Jones Bros. Water Well Service | 70 | — | 5 | 1981-09-03 |
| 275 | Lehl's Water Well Service | 69 | — | 4 | 2014-12-20 |
| 276 | T And T Water Well Drilling | 68 | — | 12 | 2020-03-12 |
| 277 | Reuben Bartel Well Drilling, Inc. | 67 | — | 4 | 2002-06-14 |
| 278 | Kelley Drilling Co. | 66 | — | 4 | 2014-12-10 |
| 279 | Paul Ott Enterprises | 66 | — | 3 | 1999-06-24 |
| 280 | White And Ellis Drilling | 65 | — | 18 | 1997-04-07 |
| 281 | Water Quality Coordinator | 65 | — | 2 | 2003-05-14 |
| 282 | Theodore Cummings Drilling Co. | 65 | — | 8 | 1993-06-22 |
| 283 | H-30 Drilling Inc. | 64 | — | 9 | 1991-10-05 |
| 284 | Robert L. Williamson Well Drilling | 63 | — | 6 | 1994-11-17 |
| 285 | Ray E. Ensley Well Drilling | 63 | — | 2 | 1997-10-25 |
| 286 | Gspf Irrigation Service | 63 | — | 9 | 2017-10-12 |
| 287 | E. Willie Hodde, Jr. Drilling Company | 62 | — | 9 | 1990-05-15 |
| 288 | Northwest Drilling Co., Inc. | 61 | — | 6 | 1981-11-23 |
| 289 | Dunham Drilling, Inc. | 61 | — | 6 | 2017-10-13 |
| 290 | H.a. Bearley Drilling | 61 | — | 1 | 1982-12-20 |
| 291 | Kenneth Callier Water Well Service | 60 | — | 11 | 1998-05-11 |
| 292 | Paul W. Benda Drilling | 60 | — | 3 | 1998-07-18 |
| 293 | Groundwater Development Company | 59 | — | 14 | 2021-08-18 |
| 294 | J.o. Johnson Drilling Company | 59 | — | 6 | 2015-10-29 |
| 295 | D & R Well Service | 59 | — | 3 | 1981-12-11 |
| 296 | George J. Lespagnard Water Well Contract | 58 | — | 4 | 1985-04-20 |
| 297 | Walter A. Hunt Drilling Co. | 58 | — | 2 | 1991-06-07 |
| 298 | Aqua LLC | 58 | — | 7 | 2010-09-13 |
| 299 | Gottschalk Water Well Drilling | 57 | — | 6 | 2021-07-15 |
| 300 | Jack Cline Drilling Co. | 56 | — | 6 | 1996-11-30 |
| 301 | Geotechnical Services, Inc. | 55 | — | 13 | 2013-08-16 |
| 302 | Dale Eastman Drilling | 54 | — | 4 | 1989-05-08 |
| 303 | Jeffrey Well Drilling | 54 | — | 10 | 2017-07-25 |
| 304 | Neosho Drilling Co. (Rogers Drlg., Inc.) | 54 | — | 3 | 2003-07-10 |
| 305 | Leon L. Wilson Water Systems | 53 | — | 4 | 2004-05-15 |
| 306 | Struckhoff Sons | 52 | — | 5 | 1977-12-15 |
| 307 | D & D Service | 52 | — | 5 | 1989-05-15 |
| 308 | Wells Drilling Co. | 51 | — | 4 | 2004-01-12 |
| 309 | Austin C. Prewit Drilling Company | 50 | — | 6 | 1979-01-26 |
| 310 | Advance Termite And Pest Control, Inc. | 50 | — | 3 | 2013-06-24 |
| 311 | Washington Co. Conservation Dist. | 50 | — | 1 | 2000-12-26 |
| 312 | Delbert Moore Drilling Company | 49 | — | 3 | 1978-11-25 |
| 313 | Kyle R. Bartell Drlg. & Machine Works | 49 | — | 6 | 2010-07-29 |
| 314 | William Schimpf Water Well Drilling | 48 | — | 5 | 1980-06-11 |
| 315 | K.i. Drilling Co. | 48 | — | 5 | 1976-07-21 |
| 316 | Darnell Water Well Drilling | 47 | — | 1 | 1992-07-06 |
| 317 | Wagner Water Well Drlg | 46 | — | 6 | 1984-05-16 |
| 318 | Alexander Pump & Services, Inc. | 46 | — | 8 | 2019-06-25 |
| 319 | Michael Woofter Drlg. Inc. | 46 | — | 7 | 1977-11-16 |
| 320 | L.j. Roberts Drilling | 46 | — | 2 | 1991-08-01 |
| 321 | Roy Senior, Western Well & Pump, Inc. | 45 | — | 4 | 1982-06-20 |
| 322 | Kelly Starnes | 44 | — | 1 | 1990-10-10 |
| 323 | Donald E. Bailey Drilling Co. | 44 | — | 4 | 1980-02-29 |
| 324 | Red Tiger Lrr. Drlg & Supply | 44 | — | 12 | 1992-06-26 |
| 325 | JM Enterprises | 43 | — | 3 | 2017-11-13 |
| 326 | Hydrotech Well And Pump | 43 | — | 7 | 2021-10-25 |
| 327 | Jantzen Water Well Repair | 43 | — | 4 | 2018-05-02 |
| 328 | Gallentine Well Service | 43 | — | 3 | 2013-09-12 |
| 329 | Dmw Well & Pump Service | 43 | — | 4 | 2020-04-14 |
| 330 | Hydra Well Contractors | 43 | — | 1 | 1980-10-11 |
| 331 | Crescent Services | 42 | — | 7 | 2017-11-28 |
| 332 | William J. Deer Drilling | 42 | — | 3 | 1982-12-15 |
| 333 | Bob Wilcox Well Dilling | 41 | — | 3 | 1999-11-15 |
| 334 | Boyd Moore Construction | 41 | — | 1 | 1995-01-21 |
| 335 | J. Abraham, J. Plummer, Brown | 40 | — | 2 | 1982-03-23 |
| 336 | Jack B. Jeffrey Well Drilling | 40 | — | 10 | 2010-06-01 |
| 337 | Billy Mcpherson Drilling Co. | 40 | — | 4 | 1998-06-26 |
| 338 | Marty B Drilling | 40 | — | 8 | 1985-09-17 |
| 339 | Robert Bartell Drilling & Machine Works | 40 | — | 2 | 2000-06-02 |
| 340 | Dan Brenn Pump & Supply | 40 | — | 2 | 2010-08-26 |
| 341 | JB Environmental | 39 | — | 9 | 2016-09-15 |
| 342 | Dallas Boeken & Burrows Water Well Co. | 39 | — | 3 | 1984-03-13 |
| 343 | Buck's Water Well Drlg. | 39 | — | 6 | 1984-06-02 |
| 344 | Gmd 4 | 38 | — | 4 | 2016-03-10 |
| 345 | Brau Drlg Co., Inc. | 37 | — | 6 | 1990-05-23 |
| 346 | Ken & Neil Wymer Blacksmith Shop | 37 | — | 1 | 1980-06-25 |
| 347 | Evel Water Well Drilling | 37 | — | 4 | 2019-01-14 |
| 348 | Eureka Well Service | 36 | — | 7 | 1978-11-03 |
| 349 | B's Pump And Well Service | 36 | — | 5 | 2012-11-26 |
| 350 | Abraham Well Serv. | 36 | — | 8 | 2010-10-27 |
| 351 | Jayhawk Drilling | 35 | — | 8 | 2013-03-15 |
| 352 | Arnold Winter, Ktm Drilling, Inc. | 35 | — | 2 | 1998-03-02 |
| 353 | Cramer Drilling Co. | 34 | — | 6 | 2000-12-10 |
| 354 | C. Struckhoff, S&h Drilling Co.,Inc. | 34 | — | 2 | 1979-07-03 |
| 355 | J. C. Mcnee Drilling & Metals | 33 | — | 2 | 2009-06-25 |
| 356 | Tichenor Drilling, Inc. | 33 | — | 4 | 2006-12-15 |
| 357 | Mid Kansas Water Well Services LLC | 33 | — | 7 | 2009-05-29 |
| 358 | Joe L. Crick, Joe's Well Service, Inc. | 33 | — | 2 | 2004-02-11 |
| 359 | Steve's Drilling | 31 | — | 8 | 2016-12-16 |
| 360 | Miller Water Well Drilling | 31 | — | 3 | 1983-11-15 |
| 361 | John A. Bledsoe Drilling Co. | 30 | — | 5 | 1980-12-30 |
| 362 | Gene's Water Well Serv. | 30 | — | 4 | 1985-09-05 |
| 363 | Abc Drilling, Inc. | 30 | — | 5 | 1979-04-30 |
| 364 | Bartell Drilling | 30 | — | 7 | 2016-03-16 |
| 365 | George V. Desch Equipment | 30 | — | 2 | 1985-10-23 |
| 366 | Hopper Construction Co. Inc. | 30 | — | 2 | 1992-09-24 |
| 367 | Jungmann Bros Drilling Co. | 29 | — | 1 | 1990-11-30 |
| 368 | Board OF Public Utilities | 29 | — | 1 | 2007-07-17 |
| 369 | Cullum And Brown, Inc. | 28 | — | 5 | 1977-07-01 |
| 370 | Glenn E. Mcmillan Water Well Drilling | 28 | — | 1 | 1984-08-02 |
| 371 | Swank Water Well Drlg. | 27 | — | 7 | 1981-01-01 |
| 372 | Peerless Machine & Mfg., Inc. | 27 | — | 4 | 2000-12-14 |
| 373 | William J. Stobbe Water Well Drlg. | 27 | — | 4 | 1998-07-20 |
| 374 | Oberlin Well Service, LLC | 27 | — | 2 | 2021-08-10 |
| 375 | Walter E. Haworth Drilling | 27 | — | 6 | 1982-05-30 |
| 376 | Williams Drilling Co., Inc. #480 | 26 | — | 5 | 2021-12-08 |
| 377 | Seldon Drilling Co., Inc. | 26 | — | 2 | 1978-12-02 |
| 378 | P & J Well Drilling | 26 | — | 8 | 1976-09-12 |
| 379 | Cline Drilling | 26 | — | 8 | 2019-01-09 |
| 380 | Simmon's Drlg | 25 | — | 2 | 1977-09-05 |
| 381 | Ronal Heffron Drilling | 25 | — | 3 | 1980-11-10 |
| 382 | Ashland Well Serv., Inc. | 25 | — | 3 | 1996-11-07 |
| 383 | Robert E. Draper Water Well Drilling, Inc. | 25 | — | 3 | 1978-08-11 |