Is OST holding money for you?

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OST is seeking current addresses for Individual Indian Money (IIM) account holders. All Whereabouts Unknown (WAU) accounts have either interests in lands and/or funds to be disbursed to rightful owners.

If you are on this list or you know someone who is on this list, please contact us in one of the following ways:

  • Call the Blackfeet Agency OST office at (406)338-7518, or the Trust Beneficiary Call Center (TBCC) at 1-888-678-6836.
  • Visit the Blackfeet Agency located in the BIA Federal building next to Glacier Family Foods in Browning, Montana.
  • Write to the OST Blackfeet Agency office at the following address: OST Blackfeet Agency, PO Box 880, Browning, MT 59417.

Please complete forms OST 01-004 and W-9 and mail to OST Blackfeet Agency at the above address. You will need Adobe Acrobat to read these files.

This link will redirect you to a search engine for all WAU names.

Blackfeet Agency WAU Names

You will need a .pdf viewer to read this file.