SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001466593-24-000039
Filing Date
2024-02-14
Accepted
2024-02-14 16:05:27
Documents
156
Period of Report
2023-12-31

Document Format Files

Seq Description Document Type Size
1 10-K ottr-20231231.htm   iXBRL 10-K 3075545
2 EX-10.15 a2023ex1015nonqualifiedret.htm EX-10.15 274635
3 EX-10.20 a2023ex1020summaryofnonxem.htm EX-10.20 8226
4 EX-10.25 a2023ex1025changeinctrlsev.htm EX-10.25 49932
5 EX-10.26 a2023ex1026changeinctrlsev.htm EX-10.26 49117
6 EX-10.28 a2023ex1028ottertailcorpor.htm EX-10.28 52496
7 EX-10.31 a2023ex10312023performance.htm EX-10.31 52476
8 EX-10.32 a2023ex10322023restricteds.htm EX-10.32 35637
9 EX-10.33 a2023ex1033consultingagree.htm EX-10.33 36658
10 EX-21 a2023ex21subsidiariesofreg.htm EX-21 6476
11 EX-23 a2023ex23consentofindepend.htm EX-23 2241
12 EX-24 a2023ex24powerofattorney.htm EX-24 12236
13 EX-31.1 a202310-kex311.htm EX-31.1 9593
14 EX-31.2 a202310-kex312.htm EX-31.2 9319
15 EX-32.1 a202310-kex321.htm EX-32.1 4263
16 EX-32.2 a202310-kex322.htm EX-32.2 4109
17 EX-97 a2023ex97incentivecompensa.htm EX-97 40004
23 GRAPHIC image_0.jpg GRAPHIC 113
24 GRAPHIC image_1.jpg GRAPHIC 4835
25 GRAPHIC ottr-20231231_g1.jpg GRAPHIC 39527
26 GRAPHIC ottr-20231231_g2.jpg GRAPHIC 31065
27 GRAPHIC ottr-20231231_g3.jpg GRAPHIC 34905
28 GRAPHIC ottr-20231231_g4.jpg GRAPHIC 29055
29 GRAPHIC ottr-20231231_g5.jpg GRAPHIC 29220
30 GRAPHIC ottr-20231231_g6.jpg GRAPHIC 29374
31 GRAPHIC ottr-20231231_g7.jpg GRAPHIC 30265
32 GRAPHIC ottr-20231231_g8.jpg GRAPHIC 59081
33 GRAPHIC ottr-20231231_g9.jpg GRAPHIC 55012
  Complete submission text file 0001466593-24-000039.txt   17982430

Data Files

Seq Description Document Type Size
18 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ottr-20231231.xsd EX-101.SCH 105708
19 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ottr-20231231_cal.xml EX-101.CAL 139839
20 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ottr-20231231_def.xml EX-101.DEF 513027
21 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT ottr-20231231_lab.xml EX-101.LAB 1183266
22 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ottr-20231231_pre.xml EX-101.PRE 807315
158 EXTRACTED XBRL INSTANCE DOCUMENT ottr-20231231_htm.xml XML 3267772
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.: 24637740
SIC: 4911 Electric Services
(CF Office: 01 Energy & Transportation)