EDGAR Filing Documents for 0001157523-11-002963

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:

SEC Accession No. 0001157523-11-002963

Filing Date

2011-05-10

Accepted

2011-05-10 12:42:21

Documents

Period of Report

2011-03-31

Document Format Files

Seq	Description	Document	Type	Size
1	OTTER TAIL CORPORATION 10-Q	a6714582.htm	10-Q	1499115
2	EXHIBIT 2.1	a6714582ex2_1.htm	EX-2.1	598498
3	EXHIBIT 2.2	a6714582ex2_2.htm	EX-2.2	78956
4	EXHIBIT 31.1	a6714582ex31_1.htm	EX-31.1	10329
5	EXHIBIT 31.2	a6714582ex31_2.htm	EX-31.2	10292
6	EXHIBIT 32.1	a6714582ex32_1.htm	EX-32.1	8123
7	EXHIBIT 32.2	a6714582ex32_2.htm	EX-32.2	8270
	Complete submission text file	0001157523-11-002963.txt		6274765

Data Files

Seq	Description	Document	Type	Size
8	XBRL INSTANCE DOCUMENT	ottr-20110331.xml	EX-101.INS	848886
9	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT	ottr-20110331.xsd	EX-101.SCH	18014
10	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT	ottr-20110331_cal.xml	EX-101.CAL	63360
11	XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT	ottr-20110331_lab.xml	EX-101.LAB	135703
12	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT	ottr-20110331_pre.xml	EX-101.PRE	132244
13	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT	ottr-20110331_def.xml	EX-101.DEF	121957

Mailing Address 215 S CASCADE ST PO BOX 496 FERGUS FALLS MN 56538-0496

Business Address 215 S CASCADE ST PO BOX 496 FERGUS FALLS MN 56538-0496 866-410-8780