HOUSTON—A federal probe of a fatal bus crash earlier this year near Victoria has prompted Texas transportation officials to investigate why that bus and 22 others were registered through a Dallas bus company shut down this summer, according to a newspaper report.

The Houston Chronicle used a private database to find more than 30 buses located at a Dallas bus company, Green River Buses. One of the buses was a 2005 Volvo bus involved in a Jan. 2 wreck near Victoria, 125 miles southwest of Houston, that killed one man and injured several people.

Some of the buses found appeared to be owned by Green River, but others were owned by as many as seven other companies based elsewhere, including Houston and Fort Worth.

The Federal Motor Carrier Safety Administration, which is investigating the Victoria crash, ordered Green River Buses of Dallas to shut down in August. The company also had been ordered to do so in April.