Stockman Bank of Montana, Sidney Branch Basic Info Reviews Routing Numbers Map & Direction Name: Stockman Bank of Montana, Sidney Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 301 West Holy Street Sidney, Montana 59270 Richland County View other branches Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer092902446YN092904570YN092905249YY From: To: