All State offices will be closed on Monday, January 20, in observance of Martin Luther King, Jr. Day

 
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DR 0020EX - Amended Oil Shale Facility Severance Tax Return

The Amended Colorado Oil Shale Facility Severance Tax Return (DR 0020EX) is required to be used when correcting your Colorado Oil Shale Facility Severance Tax Return (DR 0020E).