EDGAR Filing Documents for 0001157523-12-001147

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:

SEC Accession No. 0001157523-12-001147

Filing Date

2012-02-29

Accepted

2012-02-29 16:54:45

Documents

Period of Report

2011-12-31

Document Format Files

Seq	Description	Document	Type	Size
1	OTTER TAIL CORPORATION 10-K	a50173114.htm	10-K	4573052
2	EXHIBIT 4-C-1	a50173114_ex4c1.htm	EX-4.C-1	49004
3	EXHIBIT 10-N-11	a50173114_ex10n11.htm	EX-10.N-11	27489
4	EXHIBIT 10-P-5	a50173114_ex10p5.htm	EX-10.P-5	38596
5	EXHIBIT 10-P-6	a50173114_ex10p6.htm	EX-10.P-6	37316
6	EXHIBIT 10-Q-5	a50173114_ex10q5.htm	EX-10.Q-5	56873
7	EXHIBIT 10-Q-6	a50173114_ex10q6.htm	EX-10.Q-6	57651
8	EXHIBIT 10-Q-7	a50173114_ex10q7.htm	EX-10.Q-7	57389
9	EXHIBIT 12.1	a50173114ex12-1.htm	EX-12.1	65595
10	EXHIBIT 21-A	a50173114ex21-a.htm	EX-21.A	18105
11	EXHIBIT 23-A	a50173114ex23-a.htm	EX-23.A	2717
12	EXHIBIT 24-A	a50173114ex24-a.htm	EX-24.A	18605
13	EXHIBIT 31.1	a50173114ex31-1.htm	EX-31.1	12977
14	EXHIBIT 31.2	a50173114ex31-2.htm	EX-31.2	13855
15	EXHIBIT 32.1	a50173114ex32-1.htm	EX-32.1	8431
16	EXHIBIT 32.2	a50173114ex32-2.htm	EX-32.2	8175
17	GRAPH	graph.jpg	GRAPHIC	51216
18	GRAPH	graph2.jpg	GRAPHIC	80767
19	CHART	chart3.jpg	GRAPHIC	36012
20	CHART	chart2.jpg	GRAPHIC	31654
21	CHART	chart4.jpg	GRAPHIC	35857
	Complete submission text file	0001157523-12-001147.txt		31154595

Data Files

Seq	Description	Document	Type	Size
22	XBRL INSTANCE DOCUMENT	ottr-20111231.xml	EX-101.INS	5871235
23	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT	ottr-20111231.xsd	EX-101.SCH	208637
24	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT	ottr-20111231_cal.xml	EX-101.CAL	215722
25	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT	ottr-20111231_def.xml	EX-101.DEF	965495
26	XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT	ottr-20111231_lab.xml	EX-101.LAB	1049997
27	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT	ottr-20111231_pre.xml	EX-101.PRE	1045885

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