5 results
10-K
2018 FY
EX-3.02
Southwestern Public Service
Annual report
22 Feb 19
2:21pm
10-Q
2017 Q3
EX-3.01
Southwestern Public Service
Quarterly report
27 Oct 17
12:00am
10-KT
EX-3
Southwestern Public Service
21 Jul 97
Annual report (with FYE transition)
12:00am
8-K
EX-3
Southwestern Public Service
26 Feb 96
Other events
12:00am
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