American State Bank & Trust Company is Williston's only locally owned bank, serving the Williston North Dakota area since 1906. American State Bank and Trust Company’s commitment to our community remains an integral component of our foundation. This is demonstrated through the monetary support it provides to our community as well as the thousands of volunteer service hours our employees donate to local civic and charitable organizations. Indeed, many of our employees hold key leadership positions in those organizations. At American State Bank & Trust Co. we offer a full line of options for your personal banking needs, including personal checking, savings and loans.