⟁ Oregon Well Data field records · 2026 survey

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Best well drillers in Gilliam County, Oregon

Not a pay-to-play list: these are the 44 drilling companies with wells on record in Gilliam County, ranked by wells actually drilled here — 259 logged wells in the Oregon Water Resources Department (OWRD) well-log database (records as of 2026-09-28). Every number links back to the public record.

44companies on record
12active since 2022
259wells in county record
#CompanyIn Gilliam Co. since 2016All-time in countyStatewide
1 Zollman's Larry Burd Well Drilling LLC 18 33 1,083
2 Courtney Well Drilling, LLC 4 4 259
3 Carpenter Drilling 3 7 125
4 Aiken Well Drilling 2 2 3,701
5 Oregon Trail Well Service LLC 2 2 146
6 M-K Drilling Co. 1 23 370
7 M-K Waterwell Drilling Inc. 1 1 104
8 Holt Services Inc. 1 1 70
9 Larry Burd Well Drilling — 61 1,366
10 R J Strasser Drilling Co. — 15 410
11 Prepared BY Owrd Staff — 14 1,283
12 Wallace Drilling — 11 1,049
13 Swift Water Well Drilling Inc. — 10 156
14 Barron & Strayer — 10 152
15 Allison Drilling Co. — 8 297
16 Ladd Horn Well Drilling — 7 154
17 Jackson Drilling Co. — 6 193
18 Project Corporation — 5 34
19 Water Well Developing & Surveys — 3 709
20 Land Owner — 3 1,453
21 Brandt Drilling Co. — 3 179
22 Stettler Supply Co. — 2 168
23 Well ID Application — 2 2,794
24 Blue MT Well Drilling — 2 270
25 Austin Well Drilling — 2 225
26 Rudd W Davis Well Drilling — 2 116
27 Boart Longyear E & I — 2 39
28 Intervalley Drilling Co. — 2 30
29 Tibbets Well Drilling — 1 136
30 A M Jannsen Drilling — 1 2,026
31 A M Jannsen Well Drilling Co. Inc. — 1 1,745
32 Ross A Jannsen Well Drilling — 1 590
33 Troy Griffin Well Drilling — 1 573
34 Brad Williams Drilling — 1 471
35 Geo-Tech Explorations — 1 384
36 Hansen Drilling Co. Inc. — 1 378
37 Murray Well Drilling — 1 150
38 John Hershey Well Drilling — 1 112
39 Brown & Brown Drilling Co. — 1 88
40 C & R Drilling Co. — 1 81
41 Gilbert Clayton Well Drilling — 1 67
42 C W Summers Well Drilling — 1 61
43 Larry Burd — 1 50
44 Charles Jungmann Drilling Co. — 1 28

Ranked by wells drilled in Gilliam County since 2016 (then all-time), from the full OWRD 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 Gilliam County?

Zollman's Larry Burd Well Drilling LLC has drilled the most Gilliam County wells in the recent record — 18 since 2016, 33 in the county all-time.

How many well drilling companies work in Gilliam County?

44 companies in the OWRD record have drilled wells in Gilliam County; 12 of them have drilled somewhere in Oregon since 2022. Smaller operators below the record threshold may also serve the area.

How deep is a typical well in Gilliam County?

The median drilled depth in Gilliam County is 375 ft, based on 369 recorded wells. Depths, water levels, and yields are on the Gilliam County wells page.

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

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Free to claim · built from OWRD public well-log records.