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Best well drillers in Mercer County, Pennsylvania
Not a pay-to-play list: these are the 87 drilling companies with wells
on record in Mercer County, ranked by wells actually drilled here — 5,613 logged
wells in the Pennsylvania Groundwater Information System (PaGWIS), published by the PA Department of Conservation and Natural Resources (records as of 2026-10-12). Every number links back to
the public record.
87companies on record
31active since 2022
5,613wells in county record
| # | Company | In Mercer Co. since 2016 | All-time in county | Statewide |
|---|
| 1 | Chatfield Drilling, Inc. | 266 | 1,413 | 3,589 |
| 2 | Mohr Well Drilling, Inc. | 129 | 679 | 811 |
| 3 | Seddon's Well Drilling, Inc. | 110 | 805 | 1,580 |
| 4 | C. Book & Proch, Inc. | 92 | 284 | 3,362 |
| 5 | Kodiak Field Services | 66 | 125 | 1,705 |
| 6 | Dillan Well Drilling Inc. | 48 | 98 | 4,417 |
| 7 | Letterle & Associates, Inc. | 34 | 36 | 655 |
| 8 | Driller H.a.d. Inc. | 32 | 44 | 465 |
| 9 | Parratt-Wolff Inc. | 30 | 30 | 3,500 |
| 10 | Parker Bros Well Drilling OF PA-OH, LLC | 26 | 360 | 384 |
| 11 | Allprobe Environmental Inc. | 23 | 35 | 627 |
| 12 | Terra Testing, Inc. | 19 | 80 | 4,532 |
| 13 | Marti Cascade | 16 | 23 | 342 |
| 14 | Eichelbergers Inc. | 11 | 11 | 37,074 |
| 15 | G S Fleese Drillin | 8 | 9 | 248 |
| 16 | Mountain Research LLC | 7 | 26 | 1,243 |
| 17 | Bookamer Drilling Company | 5 | 18 | 931 |
| 18 | Cribbs & Associates, LLC | 4 | 4 | 764 |
| 19 | Meinert Well Drilling Inc. | 2 | 11 | 1,882 |
| 20 | James Leighton/Leighton Drilling Co. LLC | 1 | 1 | 286 |
| 21 | Merle B. Hall L.h. Hall & Sons Well Drilling | 1 | 1 | 40 |
| 22 | Lininger Drilling & Pumps | — | 410 | 773 |
| 23 | Thurber Wells & Pumps | — | 156 | 548 |
| 24 | Harry Bros Inc. | — | 102 | 2,237 |
| 25 | Mcdowell Well Drilling | — | 92 | 143 |
| 26 | Gravatt Drilling | — | 64 | 83 |
| 27 | W G Mcdowell | — | 62 | 71 |
| 28 | Virgil C Palmer | — | 62 | 65 |
| 29 | Tom Book And Book Well Drilling | — | 47 | 524 |
| 30 | John J Koren & Sons | — | 45 | 56 |
| 31 | Frontz Drilling Inc. | — | 33 | 199 |
| 32 | Norman R Hassel | — | 32 | 42 |
| 33 | L G Hetager Drilling Inc. | — | 31 | 600 |
| 34 | Sherman E Barber | — | 29 | 38 |
| 35 | Brooks Electric & Water Well Drlg | — | 26 | 192 |
| 36 | Geo-Environmental Drilling Co. Inc. | — | 25 | 3,228 |
| 37 | Hickernell Well Drilling | — | 25 | 2,689 |
| 38 | Rickert Well Drilling | — | 21 | 33 |
| 39 | B & M Lindemuth Drilling | — | 20 | 323 |
| 40 | Odyssey Environmental Services, Inc. | — | 19 | 7,584 |
| 41 | HD Sonic Drilling, Inc. | — | 19 | 728 |
| 42 | Morrow Drilling Co. | — | 19 | 70 |
| 43 | George Patterson Well Drilling | — | 17 | 383 |
| 44 | Edward Eppinger Well Drilling | — | 15 | 275 |
| 45 | Moody And Associates, Inc. | — | 11 | 1,117 |
| 46 | Stewart Drilling LLC | — | 10 | 51 |
| 47 | Bossard Well Drilling | — | 10 | 716 |
| 48 | Dave Walker Well Drilling & Pump Service | — | 10 | 79 |
| 49 | Theodore R Powell | — | 10 | 31 |
| 50 | E & E Drilling & Testing Co. Inc. | — | 8 | 47 |
| 51 | Water Well Drillers Licensing--Topo Geo | — | 7 | 732 |
| 52 | Peter A Kestler Well Drilling | — | 7 | 643 |
| 53 | Chase Drilling | — | 7 | 108 |
| 54 | Handex Consulting & Remediation, LLC | — | 6 | 575 |
| 55 | Hoffman Drilling And Supply | — | 5 | 35 |
| 56 | Mckay & Gould Drilling, Inc. | — | 4 | 362 |
| 57 | Geomechanics, Inc. | — | 4 | 39 |
| 58 | Toy Drilling Co. Inc. | — | 3 | 1,343 |
| 59 | R. Rindfuss Drilling, L.p. | — | 3 | 516 |
| 60 | Jay C Gilford | — | 3 | 117 |
| 61 | Letterle Leasing, LLC | — | 3 | 97 |
| 62 | Clifford P Book | — | 3 | 76 |
| 63 | Ohio Drilling Company | — | 3 | 30 |
| 64 | Summit Drilling LLC | — | 2 | 1,492 |
| 65 | Darrin Myers Water Wells Inc. | — | 2 | 1,092 |
| 66 | L L Hall Well Drilling | — | 2 | 592 |
| 67 | William H Zerbe | — | 2 | 162 |
| 68 | William D Krock | — | 2 | 144 |
| 69 | Brooks Well Drilling | — | 2 | 66 |
| 70 | B A Patten Drilling | — | 2 | 33 |
| 71 | E W Ferguson | — | 2 | 25 |
| 72 | Kibler Well Drilling LLC | — | 1 | 3,255 |
| 73 | Wayne's Water 'n' Wells Inc. | — | 1 | 205 |
| 74 | Litzenberg Drilling | — | 1 | 168 |
| 75 | Saxton Well Service, Inc. | — | 1 | 1,260 |
| 76 | Somerset Well Drilling | — | 1 | 492 |
| 77 | James D Lamison | — | 1 | 242 |
| 78 | C.dietrich Water Well Service | — | 1 | 224 |
| 79 | Aqua Drilling Co. | — | 1 | 142 |
| 80 | Halls Well Drilling | — | 1 | 102 |
| 81 | Leroy Titman And Frank Stackhouse | — | 1 | 57 |
| 82 | Robert Sadowski Well Drilling | — | 1 | 52 |
| 83 | Jeffrey L Rindfuss | — | 1 | 51 |
| 84 | Orr Drilling | — | 1 | 46 |
| 85 | Davis Drilling | — | 1 | 46 |
| 86 | John J Wallace JR | — | 1 | 38 |
| 87 | Raymond L Butterfield | — | 1 | 36 |
Ranked by wells drilled in Mercer County since 2016 (then all-time), from the full PaGWIS
record. A ★ marks a featured sponsor — sponsors must appear in the county record to be listed, and
the ranking below them is never reordered.
Who drills the most wells in Mercer County?
Chatfield Drilling, Inc. has drilled the most Mercer County wells in the recent record — 266 since 2016, 1,413 in the county all-time.
How many well drilling companies work in Mercer County?
87 companies in the PaGWIS record have drilled wells in Mercer County; 31 of them have drilled somewhere in Pennsylvania since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Mercer County?
The median drilled depth in Mercer County is 94 ft, based on 8,293 recorded wells. Depths, water levels, and yields are on the Mercer County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on
the Mercer County wells page.
Drill in Mercer County?
If your company is on this list, your profile is free to claim — confirm your details and add your
contact information so Mercer County property owners reach you directly.
Claim your profile Free to claim · built from PaGWIS public well-log records.