US · FMCSA ACTIVE
O'BRIEN ROCK COMPANY INC
Saint Paul, KS 66771 · DOT 527966
Company profile
Web-discovered · as of 2026-07-30
O'Brien Rock Company Inc (d/b/a O'Brien Ready Mix) is a Kansas-based provider of ready-mix concrete, rock, and aggregates, serving residential and commercial projects in SE Kansas, SW Missouri, NW Arkansas, and NE Oklahoma.
Fleet use
Private fleet
Operating scope
Regional
Service model
own account
Equipment
dump, specialized
Ownership
Private
HQ · 712 Central St, Saint Paul, KS 66771
Active website listing 4 locations and active career openings as of 2026.
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
72
power units · corroborated
Activity
road freight carrier
private licence
In operation since
1993
58 drivers
US compliance
Source FMCSA L&I / SAFER · as of 2026-07-12
Operating authority
None / private
Insurance on file
No
Out of service
No
Safety rating
SATISFACTORY
Crashes (24 mo)
1
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