| 1 | Harp Well & Pump Service, Inc. | 26,755 | 60 ft | 80 gpm |
| 2 | Rosencrantz-Bemis Enterprises, Inc. | 12,754 | 76 ft | 800 gpm |
| 3 | Kelly's Water Well Service, Inc. | 9,071 | 80 ft | 60 gpm |
| 4 | Miller Drilling | 7,984 | 60 ft | 35 gpm |
| 5 | GeoCore Services Inc. | 7,774 | 30 ft | 25 gpm |
| 6 | Associated Environmental, Inc. | 7,056 | 25 ft | 10 gpm |
| 7 | Larsen and Associates, Inc. | 6,113 | 21 ft | — |
| 8 | Clarke Well and Equipment, Inc. | 5,777 | 70 ft | 800 gpm |
| 9 | Jay C. Woofter Pump & Well, Inc. | 5,413 | 70 ft | 2 gpm |
| 10 | Geotechnical Services, Inc. | 5,338 | 25 ft | 0.5 gpm |
| 11 | Chase Drilling | 4,772 | 80 ft | 20 gpm |
| 12 | well owner | 4,721 | 42 ft | 20 gpm |
| 13 | GeoCore, Inc. | 4,469 | 31 ft | 15 gpm |
| 14 | Strader Drilling Co., Inc. | 4,344 | 94 ft | 15 gpm |
| 15 | Peterson Irrigation, Inc. | 4,138 | 67 ft | 30 gpm |
| 16 | GSI Engineering, LLC | 4,075 | 25 ft | 10.24 gpm |
| 17 | Weninger Drilling, LLC | 3,918 | 72 ft | 20 gpm |
| 18 | Layne-Christensen Co. | 3,601 | 43 ft | 800 gpm |
| 19 | Coranco Great Plains, Inc. | 3,261 | 32 ft | 2814.55 gpm |
| 20 | Jerome Weninger Drilling, Inc. | 3,244 | 55 ft | 30 gpm |
| 21 | Associated Drilling, Inc. | 2,953 | 132 ft | 20 gpm |
| 22 | Rick Chase Water Well Drilling | 2,702 | 78 ft | 11.5 gpm |
| 23 | Henkle Drilling & Supply Co. Inc. | 2,462 | 400 ft | 1300 gpm |
| 24 | Below Ground Surface, Inc. | 2,412 | 25 ft | 30 gpm |
| 25 | Minter-Wilson Drlg. Co., Inc. | 2,382 | 350 ft | 1350 gpm |
| 26 | Bearden Pump & Well Service | 2,324 | 38 ft | 18 gpm |
| 27 | Weninger Drilling, Inc. | 2,287 | 65 ft | 30 gpm |
| 28 | Woofter Pump & Well, Inc. | 2,116 | 132 ft | 35 gpm |
| 29 | Premier Pump & Well Service, Inc. | 2,098 | 70 ft | 20 gpm |
| 30 | Larsen & Associates | 1,914 | 21 ft | — |
| 31 | Funkee Drilling Service | 1,882 | 25 ft | 5 gpm |
| 32 | JB Environmental Drilling | 1,862 | 20 ft | 3 gpm |
| 33 | Pratt Well Service, Inc. | 1,828 | 45 ft | 50 gpm |
| 34 | Pestinger Pump & Water Well Drlg., Inc. | 1,616 | 56 ft | 75 gpm |
| 35 | Environmental Priority Service, Inc. | 1,611 | 28 ft | — |
| 36 | Karst Water Well Drilling & Service, Inc. | 1,577 | 60 ft | 15 gpm |
| 37 | Backhus Drilling | 1,576 | 76 ft | 20 gpm |
| 38 | Evans Energy Development, Inc. | 1,572 | 180 ft | 10 gpm |
| 39 | Hydro Resources Mid Continent, Inc. | 1,568 | 378 ft | 808 gpm |
| 40 | Terracon Consultants, Inc. | 1,515 | 29 ft | 1 gpm |
| 41 | Bernard E. Carlile Water Well Service, Inc. | 1,508 | 280 ft | 60 gpm |
| 42 | Howard Drilling Company AG, LLC | 1,478 | 360 ft | 100 gpm |
| 43 | Joe's Well Service, Inc. | 1,439 | 190 ft | 40 gpm |
| 44 | Sam's Water Well Service | 1,437 | 77 ft | 8 gpm |
| 45 | Rudolph J. Reiser Water Well Service, Inc. | 1,436 | 70 ft | 100 gpm |
| 46 | Terracon, Inc. | 1,364 | 25 ft | 7.125 gpm |
| 47 | Razek Environmental, LLC | 1,354 | 23 ft | — |
| 48 | Premier Pump and Well Service, Inc. | 1,331 | 78 ft | 20 gpm |
| 49 | Paul H. Backhus Drilling | 1,255 | 78 ft | 20 gpm |
| 50 | Peterson McNett Drilling, Inc. | 1,218 | 56 ft | 50 gpm |
| 51 | Central Well & Pump, Inc. | 1,197 | 95 ft | 80 gpm |
| 52 | Woofter Pump and Well, Inc. | 1,194 | 160 ft | 45 gpm |
| 53 | Price Water Well Service | 1,156 | 40 ft | 50 gpm |
| 54 | Crowdis Water Well Service, LLC | 1,152 | 90 ft | 60 gpm |
| 55 | Haldeman Well Drilling & Pump Service | 1,104 | 100 ft | 20 gpm |
| 56 | Bartel Well Drilling, Inc. | 1,088 | 160 ft | 40 gpm |
| 57 | Dean L. Lyman, Inc. | 1,063 | 60 ft | 12 gpm |
| 58 | Michael Peterson Irrigation, Inc. | 1,063 | 62 ft | 30 gpm |
| 59 | Carl Hayse Water Well Service | 1,020 | 90 ft | 25 gpm |
| 60 | East Wichita Well & Pump Service LLC | 951 | 120 ft | 18 gpm |
| 61 | Midwest Well & Pump, Inc. | 947 | 160 ft | 30 gpm |
| 62 | Blue Valley Drilling | 942 | 75 ft | 20 gpm |
| 63 | Paul Pestinger Pump & Water Well Drlg., Inc. | 921 | 56 ft | 75 gpm |
| 64 | Charles Winter Well Drilling | 905 | 125 ft | 30 gpm |
| 65 | Weishaar Drilling & Supply, Inc. | 896 | 145 ft | 50 gpm |
| 66 | Andy Anderson Drilling | 886 | 52 ft | 20 gpm |
| 67 | Central Kansas Drilling | 866 | 71 ft | 15 gpm |
| 68 | Layne Western | 856 | 35 ft | 20 gpm |
| 69 | Quad State Services, Inc. | 846 | 23 ft | — |
| 70 | Walter Woofter Pump & Well | 836 | 167 ft | 425 gpm |
| 71 | Zinn Water Well Drlg. | 832 | 70 ft | 13 gpm |
| 72 | Defenbaugh Industries, Inc. (T.E.S.T.) | 830 | 21 ft | 2 gpm |
| 73 | Craig Haldeman Well Drilling & Pump Service | 821 | 90 ft | 20 gpm |
| 74 | GeoCore, LLC | 810 | 28 ft | 19.85 gpm |
| 75 | Charles C. Myers Water Well Service | 807 | 70 ft | 100 gpm |
| 76 | Cornie Friesen Windmill and Supply Co. | 801 | 207 ft | 30 gpm |
| 77 | Grogan Ebberts Drilling | 798 | 27 ft | 4.05 gpm |
| 78 | G & S Drilling, Inc. | 779 | 80 ft | 20 gpm |
| 79 | Reiserer Well Drilling | 740 | 96 ft | 25 gpm |
| 80 | Rosencrantz-Bemis Ent. | 732 | 90 ft | 766 gpm |
| 81 | Weninger Drilling | 719 | 65 ft | 25 gpm |
| 82 | T & W Water Well Serv., Inc. | 712 | 280 ft | 60 gpm |
| 83 | RAZEK Environmental | 709 | 25 ft | 735 gpm |
| 84 | Cascade Drilling | 667 | 65 ft | 1 gpm |
| 85 | John E. Luea Water Well Drilling | 649 | 50 ft | 20 gpm |
| 86 | B & B Drilling | 646 | 138 ft | 25 gpm |
| 87 | Max's Enterprises | 637 | 27 ft | — |
| 88 | Env. Priority Srvc | 636 | 27 ft | — |
| 89 | Below Ground Surface | 630 | 25 ft | 15.92 gpm |
| 90 | GSI Engineering | 621 | 24 ft | — |
| 91 | Associated Drilling, Inc. #990 | 614 | 120 ft | 20 gpm |
| 92 | James Munyon, JM Enterprises | 610 | 22 ft | — |
| 93 | O.S. Fent Hydraulic Drilling Company | 605 | 55 ft | 25 gpm |
| 94 | Ed Jantzen Water Well Repair | 604 | 191 ft | — |
| 95 | Groundwater Technology | 602 | 25 ft | 15 gpm |
| 96 | GreenField Contractors, Inc. | 600 | 25 ft | — |
| 97 | Gerald Houck Bros. Drilling Co. | 598 | 395 ft | 80 gpm |
| 98 | Blue Valley Drilling, Inc. | 587 | 76 ft | 20 gpm |
| 99 | Curtis J. Weninger Irrigation | 555 | 65 ft | 200 gpm |
| 100 | Thiele Geotech, Inc. | 553 | 27 ft | 50 gpm |