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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000834237-21-004655
Filing Date
2021-01-29
Accepted
2021-01-29 17:22:57
Documents
1

Document Format Files

Seq Description Document Type Size
1 us5526901096_012921.txt SC 13G/A 11658
  Complete submission text file 0000834237-21-004655.txt   13464
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1000
MDU RESOURCES GROUP INC (Subject) CIK: 0000067716 (see all company filings)

IRS No.: 301133956 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-35797 | Film No.: 21572687
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)

Mailing Address 55 EAST 52ND STREET NEW YORK NY 10055
Business Address 55 EAST 52ND STREET NEW YORK NY 10055 212-810-5300
BlackRock Inc. (Filed by) CIK: 0001364742 (see all company filings)

IRS No.: 320174431 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6211 Security Brokers, Dealers & Flotation Companies