Registered 2002-05-09 · 76 power units · Interstate
BIG SKY BUS LINES INC (USDOT 1027249, MC431682) is an interstate motor carrier based in BLACK EAGLE, MT, operating a mid-size fleet of 76 power units. FMCSA shows operating authority as active for Motor Carrier of Passengers, granted 2008-03-06. The insurance file carries a $5,000,000 BMC-91X filing from New York Marine and General Insurance Company, effective 2026-07-01. The authority and insurance files agree with each other as of the date this record was read. These figures are read from FMCSA Licensing & Insurance and SAFER on 2026-09-23; MC Sentry reports what is on file and does not rate or recommend carriers.
■BIPD policy AU202500019852 cancelled by insurer (New York Marine and General Insurance Company)
■BIPD/Excess policy PHUB705105 cancelled by insurer (PHILADELPHIA INDEMNITY INSURANCE COMPANY)
■BIPD/Excess policy 96A2UB0000109-00 cancelled by insurer (AMERICAN ALTERNATIVE INSURANCE CORPORATION)
○Operating authority active — REINSTATED
■BIPD/Primary policy LFB 001190-1 cancelled by insurer (RLI INSURANCE COMPANY)
6 earlier filing changes on record, back to 2003-03-07. Totals are summarised under Filing history analysis.
Registration on file
Entity status
Active
Operation
Interstate
Classification
PRIVATE PASSENGER, BUSINESS;PRIVATE PASSENGER, NON-BUSINESS;AUTHORIZED FOR HIRE
Power units
76
Trucks
0
Phone
4064541283
Filing history analysis
Operating authority on record since 2008-03-06 — 18 years.
9 insurance cancellations on record, most recently 2026-08-05, 49 days ago.
2 suspension or revocation orders served by FMCSA, most recently 2007-10-23.
Current primary filing: $5,000,000 with New York Marine and General Insurance Company, on file since 2026-07-01 — $4,250,000 above the federal minimum.
76 power units — a large fleet, larger than 97% of carriers in the FMCSA census.