MDU RESOURCES GROUP INC — 8-A12B Filings

3 8-A12B filings on record

This page lists all 8-A12B filings submitted to the SEC by MDU RESOURCES GROUP INC (MDU), sorted by most recent first. Each row links to the full filing on EdgarLookup. MDU RESOURCES GROUP INC has filed 3 8-A12B documents with the SEC since 2010. To view all SEC filings by MDU RESOURCES GROUP INC, see the full filings list.

Overview All Filings Financials Insiders

All 10-K 10-K/A 10-Q 11-K 11-K/A 15-12B 25-NSE 3 3/A 4 4/A 424B2 424B3 424B5 5 5/A 8-A12B 8-A12B/A 8-K 8-K/A 8-K12B ARS AW CORRESP DEF 14A DEFA14A DEFR14A NO ACT POS AM POSASR PRE 14A PRER14A S-3 S-3/A S-3ASR S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A SD UPLOAD

Form	Description	Accession Number	Filed	Period
8-A12B	SECURITIES UPDATE	0000067716-09-000005	Jan 5, 2009	—
8-A12B	FORM 8-A	0000898822-98-001020	Nov 12, 1998	—
8-A12B	8-A FOR LEGAL	0000067716-94-000025	Sep 21, 1994	—