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{{Short description|American energy company}}
{{Undisclosed paid|date=August 2020}}
{{Infobox company
{{Infobox company
| name = MDU Resources Group, Inc.
| name = MDU Resources Group, Inc.
| logo = [[File:MDU_Resources_Logo.jpg|265px]]
| logo = MDU_Resources_Logo.jpg
| logo_size = 265px
| type = [[Public company|Public]]
| type = [[Public company|Public]]
| traded_as = {{unbulleted list|{{NYSE|MDU|{{#property:p249}}}}}}
| traded_as = {{unbulleted list|{{NYSE|MDU|{{#property:p249}}}}|[[List of S&P 400 companies|S&P 400 Component]]}}
⚫
| foundation = [[Bismarck, North Dakota| Bismarck]], [[North Dakota]], U.S.<br>({{Start date and age|1924}})
⚫
| industry = {{unbulleted list|[[Electric Power]]|[[Natural Gas]]|[[Construction]]}}
⚫
| foundation = [[Minneapolis, Minnesota|Minneapolis]], [[Minnesota]], U.S.<br>({{Start date and age|1924}})
| founders = {{flatlist|
| founders = {{flatlist|
* [[ Rolland Heskett]]
* [[Rolland Heskett]]
}}
}}
| location_city = [[Bismarck, North Dakota|Bismarck]], [[North Dakota]]
| location_city = [[Bismarck, North Dakota]]
| area_served = Most of United States
⚫
| location_country = U.S.
⚫
| key_people = {{plainlist|
| area_served = Idaho, Minnesota, Montana, North Dakota, Oregon, South Dakota, Washington, and Wyoming.
⚫
| key_people = {{plainlist|
* [[Harry J. Pearce]] (Chairman)
* [[Harry J. Pearce]] (Chairman)
* [[David L. Goodin]] (CEO)
* [[David L. Goodin]] (CEO)
* [[Doran N. Schwartz]] (CFO)
}}
}}
| revenue = {{nowrap|{{increase}} US$ 4.657&nbsp;billion (2023)<ref name='xbrlus_1'>{{cite web |url=https://s29.q4cdn.com/584607104/files/doc_financials/2023/ar/2023_mdu-resources-ar-form-10-k-proxy_web.pdf |title=MDU Resources Announces 2023 Financial Results|access-date=2024-06-04}}</ref>}}
⚫
| industry = {{unbulleted list|[[Electric Power]]|[[Natural Gas]]|[[Construction]]}}
⚫
| operating_income = {{nowrap|{{increase}} US$ 426.0&nbsp;million (2023)<ref name='xbrlus_1'/>}}
| market_capitalization = $3.776B
| revenue = {{nowrap|{{increase}} US$ 4.67&nbsp;billion (2013)<ref name='xbrlus_1'>{{cite web|url=http://www.mdu.com/docs/default-source/Proxy-Materials/2013_annualreport.pdf?sfvrsn=6 |title=MDU FY13 Results |publisher=MDU Resources Group Inc. |format=PDF |date=February 21, 2014}}</ref>}}
| net_income = {{nowrap|{{increase}} US$ 414.7&nbsp;million (2023)<ref name='xbrlus_1'/>}}
| operating_income = {{nowrap|{{increase}} US$ 492.9&nbsp;million (2013)<ref name='xbrlus_1'/>}}
| assets = {{nowrap|{{decrease}} US$ 7.833&nbsp;billion (2023)<ref name='xbrlus_1'/>}}
| net_income = {{nowrap|{{increase}} US$ 278.93&nbsp;million (2013)<ref name='xbrlus_1'/>}}
| equity = {{nowrap|{{decrease}} US$ 2.905&nbsp;billion (2023)<ref name='xbrlus_1'/>}}
| assets = {{nowrap|{{increase}} US$ 7.061&nbsp;billion (2013)<ref name='xbrlus_1'/>}}
| num_employees = 9,145<ref name='xbrlus_1'/>
| num_employees_year = 2023
⚫
| equity = {{nowrap|{{increase}} US$ 2.855&nbsp;billion (2013)<ref name='xbrlus_1'/>}}
| num_employees = 9,133 (2013)<ref name='xbrlus_1'/>
| subsid = {{flatlist|
| subsid = {{flatlist|
* [[Fidelity Exploration & Production]]
* [[Knife River Corporation]]
* [[Knife River Corporation]]
* [[MDU Construction Services Group, Inc]]
* [[MDU Construction Services Group, Inc]]
* [[MDU Industrial Services Inc]]
* [[Cascade Natural Gas]]
* [[Cascade Natural Gas]]
* [[WBI Holdings Inc.]]
* [[WBI Holdings Inc.]]
* [[Centennial Energy Resources LLC]]
* [[Centennial Energy Resources LLC]]
* [[Capital Electric Construction Co Inc]]
* [[Capital Electric Construction Co Inc]]
* [[Granite City Ready Mix]]
}}
}}
⚫
| location_country = U.S.
| homepage = {{URL|https://www.MDU.com}}
| homepage = {{URL|https://www.MDU.com}}
}}
}}
'''MDU Resources Group, Inc.''' is a U.S.-based corporation supplying products and services to regulated energy delivery and utilities related construction materials and services businesses.<ref>{{Cite web |title=MDU - Mdu Resources Group Inc Profile |url=https://www.reuters.com/companies/MDU |access-date=2020-08-21 |website=Reuters |language=en}}</ref> It is headquartered in Bismarck, North Dakota, and operates in 48 states.
'''MDU Resources Group, Inc.''' ({{NYSE|MDU}}) is a U.S. diversified [[Energy industry|energy company]], with electric and natural gas utility distribution operations in [[Idaho]], [[Minnesota]], [[Montana]], [[North Dakota]], [[Oregon]], [[South Dakota]], [[Washington (state)|Washington]], and [[Wyoming]].


==Background==
==Early history==
MDU Resources got its start in 1924 as the Minnesota Northern Power Company. Its founder, Rolland Heskett, had previously been involved with utilities in Wisconsin and northeast Minnesota (the forerunners of [[Wisconsin Public Service Corporation]] and [[Minnesota Power]], respectively). The Minnesota Northern Power holdings initially consisted of the electric utility at [[Cushing, Oklahoma]] (quickly sold off to [[Oklahoma Gas & Electric]]), Minnesota Electric Light & Power Company, which served the [[Bemidji, Minnesota]] area (sold in 1925 to the W. B. Foshay interests—this property today comprises [[Otter Tail Corporation|Otter Tail Power]]'s Bemidji division), the Eastern Montana Light & Power Company, which was centered around [[Sidney, Montana|Sidney]] and [[Glendive, Montana]], and the Eastern Montana Utilities Co. which was based in [[Fairview, Montana]]. The two 'Eastern Montana' utilities became the nucleus of MDU's operations.
MDU Resources got its start in 1924 as the Minnesota Northern Power Company. Its founder, Rolland Heskett, had previously been involved with utilities in Wisconsin and northeast Minnesota (the forerunners of [[Wisconsin Public Service Corporation]] and Minnesota Power (& Light Co.), respectively). The firm's holdings initially consisted of the electric utility at [[Cushing, Oklahoma]] (later sold off to [[Oklahoma Gas & Electric]]), Minnesota Electric Light & Power Company, which served the [[Bemidji, Minnesota]] area (sold in 1925 to the [[Wilbur B. Foshay|W.B. Foshay]] interests — this property today comprises [[Otter Tail Corporation|Otter Tail Power]]'s Bemidji division), the Eastern Montana Light & Power Company, centered around [[Sidney, Montana|Sidney]] and [[Glendive, Montana]], and the Eastern Montana Utilities Co., which was based in [[Fairview, Montana]]. The two 'Eastern Montana' utilities became the nucleus of Montana-Dakota Utilities' operations.


Initially, Minnesota Northern was only in the business of selling electric power, but entered the gas business following discovery of deposits in [[Eastern Montana]]. As Minnesota Northern expanded across Eastern Montana and western North Dakota, it acquired the electric franchise for [[Miles City, Montana]] after an acquisition struggle with the [[Montana Power Company]].<ref name=Mondakonians>{{cite book|last=Beck|first=Bill|title=Mondakonians: Energizers of the Prairie|year=1992|isbn=0-9632468-1-X}}</ref>
Initially, Minnesota Northern was only in the business of selling electric power, but entered the natural gas business following its discovery of oil in 1936 in the Williston Basin in [[Eastern Montana]]. As it expanded across Eastern Montana and western North Dakota, it acquired the electric franchise for [[Miles City, Montana]], after an acquisition struggle with the [[Montana Power Company]].<ref name=Mondakonians>{{cite book|last=Beck|first=Bill|title=Mondakonians: Energizers of the Prairie|year=1992|isbn=0-9632468-1-X}}</ref>


Shortly after passage of the [[Public Utility Holding Company Act of 1935]] (PUHCA), Heskett reorganized all the gas and electric subsidiaries of Minnesota Northern Power under a new name—'''Montana-Dakota Utilities'''.
Shortly after passage of the [[Public Utility Holding Company Act of 1935]] (PUHCA), Heskett reorganized all the gas and electric subsidiaries of Minnesota Northern Power under a new name — '''Montana-Dakota Utilities'''.

== Later history ==


Unlike its neighboring utilities, MDU was generally not in the business of reselling energy at wholesale to other companies, with the exception of five Eastern Montana towns then served by the [[Mountain States Power Company]]. The distribution systems in these towns passed into MDU ownership by the early 1940s.
Unlike its neighboring utilities, MDU was generally not in the business of reselling energy at wholesale to other companies, with the exception of five Eastern Montana towns then served by the [[Mountain States Power Company]]. The distribution systems in these towns passed into MDU ownership by the early 1940s.


The company's common stock began trading on the New York Stock Exchange under the ticker symbol MDU in 1948. By the 1960s it was decided that the company's headquarters should be located within its service territory, in Bismarck, the largest town on the system, and the relocation was completed in 1968.
On June 10, 2000, The Westmoreland Coal Company and the Knife River Corporation, a subsidiary of the MDU Resources Group, said that they had entered exclusive talks for the sale of Knife River's coal operations to Westmoreland.<ref>{{cite web |url=http://origin-www.lexisnexis.com/ap/auth/ |title= COMPANY NEWS; WESTMORELAND COAL IN TALKS TO ADD KNIFE RIVER MINES}}</ref>

In 1985, the corporation realigned its operations under the name MDU Resources Group, Inc. In 1992, it acquired its first aggregates-mining company in central California, and has continued to expand its construction materials business . Knife River Corporation is now among the largest sand and gravel producing companies in the U.S. In 2001, Knife River sold its remaining coal-mining interests.

In 1997, MDU Resources started its utility services division, which over the years has expanded its construction services offerings and become the MDU Construction Services Group segment.


==Acquisition and lawsuit==
==Acquisition and lawsuit==
The largest addition of electric utility territory came in 1945, when MDU purchased the Dakota Public Service Company (DPSC) from [[NorthWestern Corporation|NorthWestern Public Service Company]] (NWPS) of [[Huron, South Dakota]]. DPSC served a total of 91 towns in west-central North Dakota originally served by the Hughes Electric Company/North Dakota Power & Light Company (NDP&L) and south-central North Dakota/north-central South Dakota originally served by the Northern Power & Light Company (NP&L). When MDU examined DPSC's books after the purchase, they spent the next six years in litigation with NWPS over allegations of improper internal charges between NWPS, NP&L, and NDP&L. Both companies eventually realized the lawsuit was unproductive and they ceased litigation.<ref name=Mondakonians />
The largest addition of electric utility territory came in 1945, when MDU purchased the Dakota Public Service Company (DPSC) from [[NorthWestern Corporation|NorthWestern Public Service Company]] (NWPS) of [[Huron, South Dakota]]. DPSC served a total of 91 towns in west-central North Dakota originally served by the Hughes Electric Company/North Dakota Power & Light Company (NDP&L) and south-central North Dakota/north-central South Dakota originally served by the Northern Power & Light Company (NP&L). When MDU examined DPSC's books after the purchase, they spent the next six years in litigation with NWPS over allegations of improper internal charges between NWPS, NP&L, and NDP&L. Both companies eventually realized the lawsuit was unproductive and they ceased litigation.<ref name=Mondakonians />


After the end of the lawsuit, MDU refocused on the growing demand for electricity and gas within its newly expanded territory and the necessary system improvements. In the late 1960s, MDU partnered with NWPS and Otter Tail Power in the construction of the Big Stone power plant near [[Big Stone City, South Dakota]]. MDU also briefly explored a merger with Otter Tail but both parties decided not to pursue this. The companies have since partnered on two base-load power plants (Big Stone and Coyote). By the 1980s, when the revenue from the utility operations began to plateau, it reorganized into MDU Resources and began an aggressive program of diversification into closely related but unregulated industries.<ref name=Mondakonians /> This diversification program has succeeded to the point where the utility operations are no longer the company's main source of revenue. Even so, MDU Resources provides natural gas to about 440,000 residential customers and electricity to about 92,000 residential customers today.<ref>{{cite web|title=MDU Resources Inc. website|url=http://www.mdu.com/OurBusiness/Overview/Pages/CorporateProfile.aspx}}</ref>
After the end of the lawsuit, MDU refocused on the growing demand for electricity and gas within its newly expanded territory and the necessary system improvements. In the late 1960s, MDU partnered with NWPS and Otter Tail Power in the construction of the Big Stone power plant near [[Big Stone City, South Dakota]]. The companies have since partnered on two base-load power plants (Big Stone and Coyote).

=== 2016 Portland gas explosion - Loy Clark lawsuits ===
The [[Oregon Public Utility Commission]] faulted MDU subsidiary<ref>{{Cite web|title=About Loy Clark Construction - Serving the Portland Metro & Washington|url=https://www.loyclark.com/about-loy-clark/|access-date=2020-08-20|website=Loy Clark Construction|language=en-US}}</ref><ref>{{Cite web|last=Brettman|first=Allan|date=2016-11-05|title=Pipeline at NW 23rd Ave. blast site was not pierced|url=https://www.oregonlive.com/portland/2016/11/pipeline_at_nw_23rd_blast_site.html|archive-url=|archive-date=|access-date=2020-08-21|website=oregonlive|language=en|quote="MDU Resources Group, Inc., the publicly held company in North Dakota that owns Loy Clark"}}</ref> Loy Clark for the [[2016 Portland gas explosion]] that leveled a building, sent asbestos fragments flying, damaged numerous buildings and injured eight people.<ref>{{Cite web|title=Oregon natural gas explosion injures eight, destroys building|url=https://www.nbcnews.com/news/us-news/oregon-natural-gas-explosion-injures-eight-destroys-building-n669156|access-date=2020-08-20|website=NBC News|language=en}}</ref> The damages totaled $17.2 million. The PUC faulted Loy Clark and listed the cause of the accident as Loy Clark's failure to give sufficient notifications to regulators about excavation plans.<ref>{{Cite web|last=Brettman|first=Allan|date=2017-03-31|title=NW 23rd blast: Excavator dug on wrong side of street, caused natural gas explosion, report says|url=https://www.oregonlive.com/portland/2017/03/oregon_utilty_report_excavator.html|archive-url=|archive-date=|access-date=2020-08-20|website=oregonlive|language=en}}</ref> Additionally, [[Occupational Safety and Health Administration|OSHA]] cited and fined Loy Clark for safety violations as a result of this incident.<ref name=":0">{{Cite web|last=Green|first=Aimee|date=2018-11-01|title=10 lawsuits filed in aftermath of NW 23rd Ave. explosions|url=https://www.oregonlive.com/portland/2018/10/10_lawsuits_filed_in_aftermath.html|archive-url=|archive-date=|access-date=2020-08-20|website=oregonlive|language=en}}</ref> Ten lawsuits were filed against Loy Clark in November 2018, two of which were by insurers who had paid out claims.<ref name=":0"/> Two additional lawsuits were filed against Loy Clark in December 2019.<ref>{{Cite web|last=Ramakrishnan|first=Jayati|date=2019-12-07|title=Portland bagel shop owners sue pipeline company over 2016 explosion that destroyed business|url=https://www.oregonlive.com/crime/2019/12/portland-bagel-shop-owners-sue-pipeline-company-over-2016-explosion-that-destroyed-business.html|archive-url=|archive-date=|access-date=2020-08-20|website=oregonlive|language=en}}</ref>


==Subsidiaries==
==Subsidiaries==
'''Cascade Natural Gas Corporation''', serving parts of Oregon and Washington, was acquired by MDU in 2007.<ref>{{cite web |url= http://www.cngc.com/company/servicemap.asp |title= Service Area Map |publisher= Cascade Natural Gas Corporation |accessdate= March 25, 2012}}</ref><ref>{{cite web |url= http://www.cngc.com/company/news_release_07_02_2007.asp |title= Cascade Natural Gas Corp. merger completed |publisher= Cascade Natural Gas Corporation |accessdate= March 25, 2012}}</ref> '''Intermountain Gas Company''', serving parts of Idaho, was acquired by MDU in 2008.<ref>{{cite web |url= http://www.intgas.com/aboutigc/news/mdu-igc.pdf |title= MDU Resources to Acquire Intermountain Gas Company |publisher= Intermountain Gas Company |accessdate= March 25, 2012}}</ref> '''Knife River Corporation''' provides construction-related products and services, including aggregate, asphalt, building materials, cement, construction services, liquid asphalt, and [[ready-mix concrete]] in 13 states.<ref>{{cite web |url= http://www.kniferiver.com/Pages/default.aspx |title=Knife River Corporation |accessdate= March 25, 2012}}</ref>
Cascade Natural Gas Corporation, serving parts of Oregon and Washington, was acquired by MDU Resources in 2006.<ref>{{cite web |url= http://www.cngc.com/company/servicemap.asp |title= Service Area Map |publisher= Cascade Natural Gas Corporation |accessdate= March 25, 2012 |url-status= dead |archiveurl= https://web.archive.org/web/20120329223741/http://www.cngc.com/company/servicemap.asp |archivedate= March 29, 2012 }}</ref><ref>{{cite web |url= http://www.cngc.com/company/news_release_07_02_2007.asp |title= Cascade Natural Gas Corp. merger completed |publisher= Cascade Natural Gas Corporation |accessdate= March 25, 2012 |url-status= dead |archiveurl= https://web.archive.org/web/20120627105523/http://cngc.com/company/news_release_07_02_2007.asp |archivedate= June 27, 2012 }}</ref> Intermountain Gas Company, serving parts of Idaho, was acquired by MDU Resources in 2008.<ref>{{cite web |url= http://www.intgas.com/aboutigc/news/mdu-igc.pdf |title= MDU Resources to Acquire Intermountain Gas Company |publisher= Intermountain Gas Company |accessdate= March 25, 2012}}</ref> In 2023 MDU spun off Knife River Corporation, which provides construction materials and contracting services, including aggregate, asphalt, building materials, cement, construction services, liquid asphalt, and [[ready-mix concrete]] in 17 states, into a separate publicly traded company.<ref>{{cite web |url= https://www.kniferiver.com |title= Knife River Corporation |accessdate= March 25, 2012 |url-status= live |archiveurl= https://web.archive.org/web/20120404093455/https://kniferiver.com/|archivedate= April 4, 2012 }}</ref>


==See also==
==See also==
Line 66: Line 76:
==External links==
==External links==
* [http://www.mdu.com MDU Resources Group, Inc.] (official website)
* [http://www.mdu.com MDU Resources Group, Inc.] (official website)

{{S&P 400 companies}}
{{Authority control}}


[[Category:Companies listed on the New York Stock Exchange]]
[[Category:Companies listed on the New York Stock Exchange]]
[[Category:Energy in Oregon]]
[[Category:Energy in Oregon]]
[[Category:Natural gas companies of the United States]]
[[Category:Natural gas companies of the United States]]
[[Category:Power companies of the United States]]
[[Category:Electric power companies of the United States]]
[[Category:Companies in the S&P 400]]

Latest revision as of 14:46, 23 June 2024

MDU Resources Group, Inc.
Company typePublic
Industry
FoundedMinneapolis, Minnesota, U.S.
(1924; 100 years ago (1924))
Founders
Headquarters
Bismarck, North Dakota
,
U.S.
Area served
Most of United States
Key people
RevenueIncrease US$ 4.657 billion (2023)[1]
Increase US$ 426.0 million (2023)[1]
Increase US$ 414.7 million (2023)[1]
Total assetsDecrease US$ 7.833 billion (2023)[1]
Total equityDecrease US$ 2.905 billion (2023)[1]
Number of employees
9,145[1] (2023)
Subsidiaries
Websitewww.mdu.com

MDU Resources Group, Inc. is a U.S.-based corporation supplying products and services to regulated energy delivery and utilities related construction materials and services businesses.[2] It is headquartered in Bismarck, North Dakota, and operates in 48 states.

Early history

[edit]

MDU Resources got its start in 1924 as the Minnesota Northern Power Company. Its founder, Rolland Heskett, had previously been involved with utilities in Wisconsin and northeast Minnesota (the forerunners of Wisconsin Public Service Corporation and Minnesota Power (& Light Co.), respectively). The firm's holdings initially consisted of the electric utility at Cushing, Oklahoma (later sold off to Oklahoma Gas & Electric), Minnesota Electric Light & Power Company, which served the Bemidji, Minnesota area (sold in 1925 to the W.B. Foshay interests — this property today comprises Otter Tail Power's Bemidji division), the Eastern Montana Light & Power Company, centered around Sidney and Glendive, Montana, and the Eastern Montana Utilities Co., which was based in Fairview, Montana. The two 'Eastern Montana' utilities became the nucleus of Montana-Dakota Utilities' operations.

Initially, Minnesota Northern was only in the business of selling electric power, but entered the natural gas business following its discovery of oil in 1936 in the Williston Basin in Eastern Montana. As it expanded across Eastern Montana and western North Dakota, it acquired the electric franchise for Miles City, Montana, after an acquisition struggle with the Montana Power Company.[3]

Shortly after passage of the Public Utility Holding Company Act of 1935 (PUHCA), Heskett reorganized all the gas and electric subsidiaries of Minnesota Northern Power under a new name — Montana-Dakota Utilities.

Later history

[edit]

Unlike its neighboring utilities, MDU was generally not in the business of reselling energy at wholesale to other companies, with the exception of five Eastern Montana towns then served by the Mountain States Power Company. The distribution systems in these towns passed into MDU ownership by the early 1940s.

The company's common stock began trading on the New York Stock Exchange under the ticker symbol MDU in 1948. By the 1960s it was decided that the company's headquarters should be located within its service territory, in Bismarck, the largest town on the system, and the relocation was completed in 1968.

In 1985, the corporation realigned its operations under the name MDU Resources Group, Inc. In 1992, it acquired its first aggregates-mining company in central California, and has continued to expand its construction materials business . Knife River Corporation is now among the largest sand and gravel producing companies in the U.S. In 2001, Knife River sold its remaining coal-mining interests.

In 1997, MDU Resources started its utility services division, which over the years has expanded its construction services offerings and become the MDU Construction Services Group segment.

Acquisition and lawsuit

[edit]

The largest addition of electric utility territory came in 1945, when MDU purchased the Dakota Public Service Company (DPSC) from NorthWestern Public Service Company (NWPS) of Huron, South Dakota. DPSC served a total of 91 towns in west-central North Dakota originally served by the Hughes Electric Company/North Dakota Power & Light Company (NDP&L) and south-central North Dakota/north-central South Dakota originally served by the Northern Power & Light Company (NP&L). When MDU examined DPSC's books after the purchase, they spent the next six years in litigation with NWPS over allegations of improper internal charges between NWPS, NP&L, and NDP&L. Both companies eventually realized the lawsuit was unproductive and they ceased litigation.[3]

After the end of the lawsuit, MDU refocused on the growing demand for electricity and gas within its newly expanded territory and the necessary system improvements. In the late 1960s, MDU partnered with NWPS and Otter Tail Power in the construction of the Big Stone power plant near Big Stone City, South Dakota. The companies have since partnered on two base-load power plants (Big Stone and Coyote).

2016 Portland gas explosion - Loy Clark lawsuits

[edit]

The Oregon Public Utility Commission faulted MDU subsidiary[4][5] Loy Clark for the 2016 Portland gas explosion that leveled a building, sent asbestos fragments flying, damaged numerous buildings and injured eight people.[6] The damages totaled $17.2 million. The PUC faulted Loy Clark and listed the cause of the accident as Loy Clark's failure to give sufficient notifications to regulators about excavation plans.[7] Additionally, OSHA cited and fined Loy Clark for safety violations as a result of this incident.[8] Ten lawsuits were filed against Loy Clark in November 2018, two of which were by insurers who had paid out claims.[8] Two additional lawsuits were filed against Loy Clark in December 2019.[9]

Subsidiaries

[edit]

Cascade Natural Gas Corporation, serving parts of Oregon and Washington, was acquired by MDU Resources in 2006.[10][11] Intermountain Gas Company, serving parts of Idaho, was acquired by MDU Resources in 2008.[12] In 2023 MDU spun off Knife River Corporation, which provides construction materials and contracting services, including aggregate, asphalt, building materials, cement, construction services, liquid asphalt, and ready-mix concrete in 17 states, into a separate publicly traded company.[13]

See also

[edit]

References

[edit]
  1. ^ a b c d e f "MDU Resources Announces 2023 Financial Results" (PDF). Retrieved 2024-06-04.
  2. ^ "MDU - Mdu Resources Group Inc Profile". Reuters. Retrieved 2020-08-21.
  3. ^ a b Beck, Bill (1992). Mondakonians: Energizers of the Prairie. ISBN 0-9632468-1-X.
  4. ^ "About Loy Clark Construction - Serving the Portland Metro & Washington". Loy Clark Construction. Retrieved 2020-08-20.
  5. ^ Brettman, Allan (2016-11-05). "Pipeline at NW 23rd Ave. blast site was not pierced". oregonlive. Retrieved 2020-08-21. MDU Resources Group, Inc., the publicly held company in North Dakota that owns Loy Clark
  6. ^ "Oregon natural gas explosion injures eight, destroys building". NBC News. Retrieved 2020-08-20.
  7. ^ Brettman, Allan (2017-03-31). "NW 23rd blast: Excavator dug on wrong side of street, caused natural gas explosion, report says". oregonlive. Retrieved 2020-08-20.
  8. ^ a b Green, Aimee (2018-11-01). "10 lawsuits filed in aftermath of NW 23rd Ave. explosions". oregonlive. Retrieved 2020-08-20.
  9. ^ Ramakrishnan, Jayati (2019-12-07). "Portland bagel shop owners sue pipeline company over 2016 explosion that destroyed business". oregonlive. Retrieved 2020-08-20.
  10. ^ "Service Area Map". Cascade Natural Gas Corporation. Archived from the original on March 29, 2012. Retrieved March 25, 2012.
  11. ^ "Cascade Natural Gas Corp. merger completed". Cascade Natural Gas Corporation. Archived from the original on June 27, 2012. Retrieved March 25, 2012.
  12. ^ "MDU Resources to Acquire Intermountain Gas Company" (PDF). Intermountain Gas Company. Retrieved March 25, 2012.
  13. ^ "Knife River Corporation". Archived from the original on April 4, 2012. Retrieved March 25, 2012.
[edit]
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