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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001466593-23-000053
Filing Date
2023-02-15
Accepted
2023-02-15 13:57:03
Documents
143
Period of Report
2022-12-31

Document Format Files

Seq Description Document Type Size
1 10-K ottr-20221231.htm   iXBRL 10-K 3912429
2 EX-10.28 ex1028summaryofnon-employe.htm EX-10.28 9499
3 EX-10.36 a2022ex1036formofcicsevera.htm EX-10.36 47288
4 EX-21 a2022ex21subsidiariesofreg.htm EX-21 6577
5 EX-23 a2022ex23consentofindepend.htm EX-23 2342
6 EX-24 a2022ex24powerofattorney.htm EX-24 11208
7 EX-31.1 a202210-kex311.htm EX-31.1 9694
8 EX-31.2 a202210-kex312.htm EX-31.2 9554
9 EX-32.1 a202210-kex321.htm EX-32.1 4364
10 EX-32.2 a202210-kex322.htm EX-32.2 4345
16 GRAPHIC ottr-20221231_g1.jpg GRAPHIC 39932
17 GRAPHIC ottr-20221231_g2.jpg GRAPHIC 31199
18 GRAPHIC ottr-20221231_g3.jpg GRAPHIC 36413
19 GRAPHIC ottr-20221231_g4.jpg GRAPHIC 32608
20 GRAPHIC ottr-20221231_g5.jpg GRAPHIC 33254
21 GRAPHIC ottr-20221231_g6.jpg GRAPHIC 35039
22 GRAPHIC ottr-20221231_g7.jpg GRAPHIC 34377
23 GRAPHIC ottr-20221231_g8.jpg GRAPHIC 59538
24 ottr-20221231_g9.jpg GRAPHIC 53869
  Complete submission text file 0001466593-23-000053.txt   18848212

Data Files

Seq Description Document Type Size
11 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ottr-20221231.xsd EX-101.SCH 100404
12 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ottr-20221231_cal.xml EX-101.CAL 139183
13 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ottr-20221231_def.xml EX-101.DEF 505430
14 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT ottr-20221231_lab.xml EX-101.LAB 1144524
15 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ottr-20221231_pre.xml EX-101.PRE 786493
137 EXTRACTED XBRL INSTANCE DOCUMENT ottr-20221231_htm.xml XML 4019050
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
Otter Tail Corp (Filer) CIK: 0001466593 (see all company filings)

IRS No.: 270383995 | State of Incorp.: MN | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-53713 | Film No.: 23634871
SIC: 4911 Electric Services