city closed bid purchasing irregularities

[deeray]

Last March the Veterinary Services contract at the City Animal Shelter came available 6 months early.  The normal bid process on this service is in November.  This contract is valued over 150K and is a closed bid submittal.  The following companies are the ones city purchasing contacted (under the commodity number for vet services) for a licensed Veterinarian on March 9, 2006.        
Daniel Cason –DVM Large Animals – Did get notice
Woodland Animal Hospital –Did not get notice Dr Genie Thoni DVM  -works for royal canine Baxsys  Computer services
National occupational health
Buffalo Electric
Bright Ideas Training & Development
CEIS    project engineering
G & K George Enterprises LLC    Gifts
Community Movers, Inc.
Konecrane Ind
Energy Safety services
Harold Baker – Albertsons towing
Application Software, Inc.
United Van Lines LLC
Jerald Lee Pritchett  ?
National Safe Work Institute
Aon Risk Service of Oklahoma
Ashok Kache, MD – Physical therapy
Bidders Resource Inc – Database
Solution Boxes, Inc
Wallace & Associates Protective Services LLC
Carson's Catering and Food services
Consolidated Fleet Services
Brown Cat Studio – Art studio
Bryan Consulting & Training, Inc.
MACS Performance, LLC – helicopter repair
Foreman Brothers Underground Inc.
Dunks Pool Mart, Inc.

The bid was awarded in April to the only bid submittal....  Chester Thomas DVM that lives in Sand Springs.  Please note he is not on the contacted list.   Many vets have worked contract at the shelter over the years, but none were sent a notice.  Even the contract vet working at the shelter in March was not made aware until the bid was awarded.  WHY?

Does anyone have an inside track or can help to get an investigation kicked off.