6 results
S-4/A
EX-21.1
Southwestern Public Service
3 Feb 04
Registration of securities issued in business combination transactions (amended)
12:00am
S-4
EX-21.1
Southwestern Public Service
21 Jan 04
Registration of securities issued in business combination transactions
12:00am
10-K405
1999 FY
EX-21
NCE
New Century Energies Inc
23 Feb 00
Annual report (delinquent filer disclosure)
12:00am
10-KT
EX-21
Southwestern Public Service
21 Jul 97
Annual report (with FYE transition)
12:00am
10-K
1996 FY
EX-21
Southwestern Public Service
25 Nov 96
Annual report
12:00am
10-K405
EX-21
p5h9vm1g9v 8vogmt7s
21 Nov 95
Annual report (delinquent filer disclosure)
12:00am
- Prev
- 1
- Next