Ownership change: This carrier's company officers changed in December 2025.
Previously GUILLERMO GROSSI-ROFFI, BOB LAUMANN → now GUILLERMO GROSSI-ROFFI.
G4 TANK LINES LLC
DENVER, CO
01/18/2023
56
Power Units
55
Drivers
Address
Physical Address
Mailing Address
Company Officers
Officer 1
No related companies found
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Operation Information
Authority
Common: Active
Contract: None
Broker: None
Cargo Carried
Liquefied Gas
HazMat Status
Authorized
Company History
Authority, insurance and company changes over time, on one timeline.
View company timelineMileage Info
Annual Mileage
1,871,200 miles
(MCS-150 Filing)
Reported Year
2025
MCS-150 Update
04/16/2026
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Current Insurance Policies (1)
Policy 1
Effective: 06/05/2023
Insurance carrier
GUIDEONE MUTUAL INSURANCE COMPANY
Policy number
62P101251
Coverage amount
$1,000,000
Insurance type
BI&PD (Bodily Injury & Property Damage)
Insurance class
Primary
Underlying limit
$0
Form Code: 91X (BI&PD/Primary, BI&PD/Excess)
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