# 3-B Oil Co.

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: 3-B Oil Co.
- Alternative and DBA names: Great Northern Oil Co.
- Entity type: C corporation
- Original incorporation date: June 8, 1964
- Time in business: 62 years and 4 months
- Jurisdiction count: 2

## All known addresses

- 17 W 6th Ave, Helena, MT 59601 (listed in Montana)

## Registered states

- [Montana](https://index.baselayer.com/mt/fb40c26a784ae7c9): Foreign registration
- [Ohio](https://index.baselayer.com/oh/57f5a1511db5c3e5): Domestic registration

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/57f5a1511db5c3e5)