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COS LLC
dba CASTLE OILFIELD SERVICES
WILLISTON, ND 04/16/2014
DOT 2496282
MC 1376430
Carrier
Interstate
20 Power Units
19 Drivers
Address
Physical Address
501 48TH AVE W, WILLISTON, ND 58801
Mailing Address
PO BOX 1472, WILLISTON, ND 58802
Company Officers
Officer 1
PENNY BROWN
Contact Information
Phone
(701) 572-1832
Email
CASTLEOIL.BOOKKEEPING@GMAIL.COM
Related Companies (7)
1 strong link

Companies sharing owners, email domains, phone numbers, or addresses with this carrier.

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STATELINE SERVICES INC
(STATELINE LLC)
DOT: 2136935 Strong
501 48TH AVE W, WILLISTON, ND 58801
12
Power Units
10
Drivers
Matching Fields
Phone: 7015721832
Address: 501 48TH AVE W, WILLISTON, ND 58801
WILLIAM BROWN
(BROWN TRUCKING)
DOT: 1157824
3349 DEARING ACRES RD, DEARING, GA 30808
1
Power Units
1
Drivers
Matching Fields
Officer: PENNY BROWN
P M TRUCKING LLC
DOT: 1320942
521 HULL STREET, STAUNTON, VA 24401
1
Power Units
3
Drivers
Matching Fields
Officer: PENNY BROWN
H 4 TRUCKING LLC
DOT: 2074283
256 WALL STREET, FOLSOM, NM 88419
1
Power Units
1
Drivers
Matching Fields
Officer: PENNY BROWN
COUNTRYSIDE TRANSPORT LLC
DOT: 2447933
3614 12TH STREET, CHESAPEAKE CITY, MD 20732
1
Power Units
1
Drivers
Matching Fields
Officer: PENNY BROWN
GERALD BROWN
DOT: 2495987
923 CATLETT DR, CRITTENDEN, KY 41030
1
Power Units
1
Drivers
Matching Fields
Officer: PENNY BROWN
MOSBY MECHANICAL CO INC
DOT: 1951528
507 S EASTMAN ROAD, LONGVIEW, TX 75602
1
Power Units
3
Drivers
Matching Fields
Officer: PENNY BROWN
Service Map
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Operation Information
Authority
Common: Active Contract: None Broker: None
Cargo Carried
Liquefied Gas Oilfield Equipment
HazMat Status
Not Authorized
Company History

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Mileage Info
Annual Mileage
251,164 miles (MCS-150 Filing)
Reported Year
2025
MCS-150 Update
01/29/2026

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Current Insurance Policies (1)
Policy 1
Effective: 03/04/2022
Insurance carrier
BERKLEY REGIONAL INSURANCE COMPANY
Policy number
ECA3150008-13
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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