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Corporate Headquarters
Frontier Energy Group, LLC
18325 N. Allied Way
Phoenix, AZ 85054
Office: (701) 842-4248
Fax: (701) 842-2913
Operations Headquarters
1400 4th Ave, PO Box 758
Watford City, ND 5885
Office: (701) 842-4248
Fax: (701) 842-2913
Accounting Headquarters
440 S Front St, PO Box 590
Sterling, CO 80751
Office: (970) 522-4761
Fax: (970) 522-0298
Frontier Wellhead & Supply, LLC
1400 4th Ave, PO Box 758
Watford City, ND 5885
Office: (701) 842-4248
Fax: (701) 842-2913
Frontier – Williston, ND
Branch of Frontier Wellhead & Supply, LLC
322 Main St
Williston, ND 58802
Frontier Slickline
Division of Frontier Wellhead & Supply, LLC
13877 HWY 2 W
Williston, ND 58802
Frontier Hot Oil, LLC
(formerly Hanson Hot Oil Service Company)
1400 4th Ave
PO Box 758
Watford City, ND 5885
Office: (701) 842-4248
Fax: (701) 842-2913
Frontier Hot Oil – New Town, ND
3671 89th Ave. NW
New Town, ND 58763
Office: (701) 580-4119
Frontier Hot Oil – Williston, ND
13877 HWY 2 W, Williston, ND 58802
Office: (701) 572-9822
Frontier Hot Oil – Dickinson, ND
4410 W 1st Ave
South Bay B
Dickinson, ND 58601
Office: (701) 260-1985
Frontier Hot Oil – Sidney, MT
450 SE 10th Ave., PO Box 582
Sidney, MT 59270
Office: (406) 488-3781

Frontier Pressure Testing, LLC
(formerly Kodiak Stack Testing, LLC)
Subsidiary of Frontier Energy Group, LLC
4977 140th Ave
Suite A
Williston, ND 58801-8604
Office: (701) 572-7001
Fax: (701) 572-7001

Cable, LLC
(formerly Cable, Inc. or Cable Incorporated)
Subsidiary of Frontier Energy Group, LLC
440 S Front St, PO Box 590
Sterling, CO 80751
Office: (970) 522-4761
Fax: (970) 522-0298
Cable – Whitewater, CO
302 Desert Vista Rd
Whitewater, CO 81527
Office: (970) 396-8844
Cable Wellhead
Division of Cable, LLC
744 B Noland Ave
Grand Junction, CO 81501
Office: (970) 257-9169
Fax: (970) 257-9176
Downhole Rental Tools
2000 S. HWY 6, PO Box 1500
Sterling, CO 80751
Office: (970) 522-3010
Cable – Wray, CO
36603 HWY 385
Wray, CO 80758
Office: (970) 332-2088
Cable Wellhead – Vernal
2550 W. 500 North #3
Vernal, UT 84078
Cable – Evans, CO
4329 Brantner Rd
Evans, CO 80620
Office: (970) 392-9030

Luft Machine, LLC
413 Riverside Dr, PO Box 609
Sterling, CO 80751
Office: (970) 522-9215
Fax: (970) 522-9267