OTTER TAIL CORPORATION 10-K

Company

Otter Tail Corp

Filed

February 29, 2012

Period of Report

December 31, 2011

Accession Number

0001157523-12-001147

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →