| Business | Phone |
| White Energy Corp 2146 Fairview Pl, Billings 59102 | (406) 248-5627 |
| Douglas B Bickerstaff 2812 1st Ave N, Billings 59101 | (406) 259-2395 |
| Tjk Oil Co 738 Tabriz Dr, Billings 59105 | (406) 245-4572 |
| T Bar S Oil Inc 175 N 27th St # 1303, Billings 59101 | (406) 259-7668 |
| Cox Co 2812 1st Ave N # 402, Billings 59101 | (406) 259-5858 |
| R W Mc Kamy 121 N Broadway, Billings 59101 | (406) 245-7250 |
| Robert H Scott 303 N 28th St # 714, Billings 59101 | (406) 252-3236 |
| Errebo & Assoc 2320 3rd Ave N, Billings 59101 | (406) 252-3693 |
| Paul E Nordstog 1629 Avenue D # 9, Billings 59102 | (406) 252-9666 |
| Hancock Eneterprises 2812 1st Ave N # 500, Billings 59101 | (406) 252-0576 |
| Montana Oil Properties 303 N 28th St # 603, Billings 59101 | (406) 252-0233 |
| Montana Oil Properties 303 N Broadway, Billings 59101 | (406) 252-0233 |
| Montana Wyoming Oil Co 100 N 27th St, Billings 59101 | (406) 259-1837 |
| Herco 2812 1st Ave N, Billings 59101 | (406) 252-6821 |
| J & L Oil & Gas Inc 2812 1st Ave N # 411b, Billings 59101 | (406) 252-3663 |
| Lonesome Dove Petroleum Inc 115 N 28th St, Billings 59101 | (406) 252-1990 |
| Lonesome Dove Petroleum Inc 115 N Broadway, Billings 59101 | (406) 252-1990 |
| Lonewolf Energy Inc 6543 Elysian Rd, Billings 59101 | (406) 255-0637 |
| John Fredlund Oil & Gas 115 N 28th St # 315, Billings 59101 | (406) 259-5106 |
| John Fredlund Oil & Gas 115 N Broadway, Billings 59101 | (406) 259-5106 |