SOUTHWESTERN PUBLIC SERVICE CO
SEC Filing List

CIK: 0000092521
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Form Description Owner/Filer Filing Agent Date Actions
8-KCurrent report filingXCEL ENERGY INC , SOUTHWESTERN PUBLIC SERVICE CO 05/05/2026
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10-QQuarterly report pursuant to Section 13 ...Southwestern Public Service Co 04/30/2026
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10-KAnnual report pursuant to Section 13 and...Southwestern Public Service Co 02/25/2026
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8-KCurrent report filingXCEL ENERGY INC , NORTHERN STATES POWER CO /WI/ , PUBLIC SERVICE CO OF COLORADO , SOUTHWESTERN PUBLIC SERVICE CO , NORTHERN STATES POWER CO 02/05/2026
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8-KCurrent report filingXCEL ENERGY INC , SOUTHWESTERN PUBLIC SERVICE CO 11/21/2025
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8-KCurrent report filingXCEL ENERGY INC , NORTHERN STATES POWER CO /WI/ , SOUTHWESTERN PUBLIC SERVICE CO , NORTHERN STATES POWER CO 10/30/2025
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10-QQuarterly report pursuant to Section 13 ...Southwestern Public Service Co 10/30/2025
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8-KCurrent report filingXCEL ENERGY INC , SOUTHWESTERN PUBLIC SERVICE CO , NORTHERN STATES POWER CO XCEL ENERGY INC /fa07/31/2025
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10-QQuarterly report pursuant to Section 13 ...Southwestern Public Service Co SOUTHWESTERN PUBLIC SERVICE CO /fa07/31/2025
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8-KCurrent report filingXCEL ENERGY INC , SOUTHWESTERN PUBLIC SERVICE CO XCEL ENERGY INC /fa07/18/2025
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