Carrier profile · USDOT 1254518 · MC-717829 · Updated Jun 13, 2026
4j Well Service Inc
7 power unitsavg 20.8 yrLocal · 1 statesBAKER, MT86/100
CARRIER ACTIVEMC-717829 ACTIVE
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 3614 HIGHWAY 7, BAKER, MT, 59313
- Mailing address
- PO BOX 72, BAKER, MT, 59313
- Operation
- Interstate
Contact
- Phone
- (406) 778-3856
- Cell
- (406) 978-3856
- Fax
- (406) 778-3852
- —
Registration
- Officers
- John D Moser · Janice K Moser
- USDOT / docket
- 1254518 · MC-717829
- First registered
- Jun 3, 2004
- Last MCS-150
- May 22, 2025 · 200,668 mi (2024)
- FMCSA safety rating
- Not rated
- Recordable crash rate
- 0.00
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.