Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001466593-25-000083
Filing Date
2025-05-07
Accepted
2025-05-07 12:13:33
Documents
89
Period of Report
2025-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q ottr-20250331.htm   iXBRL 10-Q 1412547
2 EX-31.1 a2025q110-qex311.htm EX-31.1 9486
3 EX-31.2 a2025q110-qex312.htm EX-31.2 9343
4 EX-32.1 a2025q110-qex321.htm EX-32.1 4092
5 EX-32.2 a2025q110-qex322.htm EX-32.2 4068
  Complete submission text file 0001466593-25-000083.txt   8377401

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT ottr-20250331.xsd EX-101.SCH 52177
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT ottr-20250331_cal.xml EX-101.CAL 95824
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT ottr-20250331_def.xml EX-101.DEF 255415
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT ottr-20250331_lab.xml EX-101.LAB 653925
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT ottr-20250331_pre.xml EX-101.PRE 468087
92 EXTRACTED XBRL INSTANCE DOCUMENT ottr-20250331_htm.xml XML 1459107
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)

EIN.: 270383995 | State of Incorp.: MN | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-53713 | Film No.: 25920212
SIC: 4911 Electric Services
(CF Office: 01 Energy & Transportation)