June 2011
DONG Energy and Bladt Industries sign an agreement for the supply of up to 600 foundations for DONG Energy's future offshore wind farms.

June 2011
DONG Energy sells Oil Terminals to Inter Pipeline.

June 2011
DONG Energy and ScottishPower Renewables decide to build the West of Duddon Sands offshore wind farm in the Irish Sea.

March 2011
PensionDanmark and PKA become co-owners of Denmark’s largest offshore wind farm, Anholt offshore wind farm.

February 2011
DONG Energy decides to build its first German offshore wind farm, Borkum Riffgrund (up to 320 MW).

February 2011
The gas-fired Severn power station in Wales is inaugurated.

November 2010
DONG Energy - together with the operator Hess and the licence partners – decides to invest in further development of the North Sea field Syd Arne. DONG Energy's share of the investment amounts to about DKK 2.5 billion.

October 2010
Due to expected lower electricity consumption, DONG Energy decides to phase out Unit 3 at Ensted Power Station and Unit 2 at Stigsnæs Power Station.

October 2010
DONG Energy concludes contracts with the Dutch energy company De Nederlandse Energie Maatschappij. The number of supplied customer accounts in the Netherlands will increase from approx. 150,000 to approx. 380,000. 

September 2010
PensionDanmark becomes co-owner (30%) of Nysted offshore wind farm.

July 2010
DONG Energy agrees development plan for the Norwegian Marulk gas field, in which DONG Energy has a 30% stake.

June 2010
DONG Energy is awarded the concession to build Anholt offshore wind farm (400 MW).

March 2010
DONG Energy and Total to jointly develop the two gas fields Laggan and Tormore in the West of Shetlands region. DONG Energy has a 20% stake.

March 2010
DONG Energy signs an agreement with Spanish Iberdrola for Iberdrola to deliver liquefied natural gas (LNG) corresponding to about 1 billion m3 of natural gas per year from the end of 2011.

February 2010
The Nini Øst field produces its first oil. DONG Energy is the operator.

December 2009
DONG Energy withdraws from project exploring the opportunities to build a power station in Greifswald in  Germany.

November 2009
DONG Energy inaugurates Inbicon near Kalundborg, one of the world’s first demonstration plants for the production of second-generation bioethanol based on straw and similar waste products.

November2009
Fibre optic network sold to TDC.

October 2009
DONG Energy and Gazprom sign a contract for Gazprom to deliver 1 billion m3 of natural gas per year via the Nord Stream pipeline in the Baltic Sea for a period of 18 years starting from 2012. The natural gas is to be delivered at the Danish-German border.

October 2009
Due to declining demand for electricity DONG Energy decides to shut down Unit 5 at Asnæs Power Station and Unit 4 at Studstrup Power Station.

September 2009
DONG Energy acquires 83.57% of the shares in the German wholesale trading company KOM-STROM AG in Leipzig.

September 2009
Inauguration of the Horns Rev 2 offshore wind farm, which is located 30 km off Blåvands Huk on the west coast of Denmark. With a capacity of 209 MW, this is the world’s largest offshore wind farm.

August 2009
DONG Energy decides to build and operate the Nygårdsfjell 2 wind farm in Narvik in Norway.

June 2009
DONG Energy acquires A2SEA, a specialist shipping company specialising in the installation of offshore wind turbines and foundations. The company owns four installation vessels.

May 2009
DONG Energy and partners E.ON and Masdar decide to build the world’s largest offshore wind farm, London Array (630 MW), in the Thames Estuary.

April 2009
DONG Energy decides to build the Walney 1 and 2 offshore wind farms in the Irish Sea.

March 2009
DONG Energy and Siemens Energy Sector sign an agreement for the supply of up to 500 offshore
wind turbines with a total capacity of up to 1,800 MW. The wind turbines will be installed on DONG Energy’s coming offshore wind farms in Northern Europe.

February 2009
DONG Energy is awarded its first two licences, including one as operator, in the Barents Sea off the northern coast of Norway. 3D seismic data will be acquired during the summer.

January 2009
DONG Energy’s decides to sell its stakes in Frederiksberg Forsyning A/S and Frederiksberg Forsynings Ejendomsselskab.

December 2008
DONG Energy decides to build a large second-generation bioethanol plant in Kalundborg.

August 2008
CARE Danmark and DONG Energy sign a collaboration agreement on the development of energy projects that reduce CO2 emissions while at the same time helping people in Ghana and Vietnam.

July 2008
DONG Energy participates as operator of exploration in West Greenland. Seismic surveys are performed in 2008.

June 2008
DONG Energy decides to build and operate the Karnice 1 onshore wind farm in Poland. The farm will have a total capacity of 30 MW.

June 2008
First sod cut at Gate Terminal in Rotterdam, which is designed to handle liquefied natural gas (LNG). DONG Energy is a partner in the international consortium that owns the terminal. DONG Energy will have more than 3 billion m3 (36.5 TWh) of the terminal’s capacity at its disposal for 20 years starting from 2011, equivalent to 25% of the terminal’s total import capacity.

June 2008
DONG Energy sells its Greek wind power activities.

February 2008
DONG Energy decides to build and operate the Storrun wind farm in Krokum in Sweden. The farm will have a capacity of 30 MW.

January 2008
The IPO of DONG Energy is suspended.

December 2007
DONG Energy agrees to sell its 132 kV electricity transmission network in North Zealand to Energinet.dk as part of the restructuring of the Danish electricity sector. The selling price is DKK 2 billion.

December 2007
DONG Energy signs an agreement on a Dutch LNG terminal.

December 2007
A decision is made to build two new offshore wind farms - Walney Island and Gunfleet Sands II. The farms will have a net capacity of 151 MW and 65 MW respectively and are scheduled for operation in 2010. The total investment is expected to amount to DKK 5.2 billion.

October 2007
DONG Energy inaugurates the Burbo Bank offshore wind farm in the UK.

October 2007
Inauguration of the Ormen Lange field, of which DONG Energy owns 10%.

August 2007
DONG Energy divests its Spanish renewables portfolio (former subsidiary of Energi E2) to E.ON. The selling price is EUR 722 million.

May 2007
DONG Energy builds a further Danish offshore wind farm - Horns Rev II. The farm will have a net capacity of 209 MW and is scheduled for operation in 2009. The investment is expected to total DKK 3.5 billion.

March 2007
DONG Energy increases its stake in the Hejre field from 20% to 50% by acquiring ConocoPhillips Petroleum’s E&P activities in Denmark.

February 2007
DONG Energy and Wingas in Germany agree to collaborate on gas exchange for the next 13 years.

August 2006
DONG Energy announces the sale of the Lille Torup gas storage facility to Energinet.dk, effective from May 2007. The selling price is DKK 2 billion.

July 2006
The DONG Energy merger is complete. 27% of the shares in DONG shift from the Danish State to nine utility companies. Their ownership of assets involved in the merger puzzle make them shareholders in the new DONG Energy.

March 2006
EU competition authorities approve the merger plans that will result in the creation of DONG Energy. The approval is conditional upon the divestiture of one of DONG’s two gas-storage facilities. The 132 kV transmission grid in northern Zealand also has to be divested.

May 2005
Vattenfall, which owns 35 % of the shares in Elsam, and DONG announce that they plan to split assets in Elsam and Energi E2. Three central plants (Amagerværket, Fynsværket and Nordjyllandsværket), two decentralised gas-fired plants in Zealand, a portfolio of Danish and international wind activities, and a 30% stake in a German wind development is transferred to Vattenfall. DONG receives Vattenfall’s 35% stake in Elsam and 40% stake in the Avedøre 2 power plant.

February 2005
DONG purchases Københavns Energi’s (KE) electricity activities. The agreement includes KE’s 34% share of Energi E2. The combined cost will be DKK 10.5 billion.
DONG also purchases Frederiksberg Forsyning and their 2.26% stake in Energi E2 for DKK 1 billion in cash, plus 3.63% of the shares in Energi E2 from four municipalities DKK 617 million in cash.

December 2004
On 10 December, DONG and Elsam announce their planned merger.

August 2004
DONG purchases additional shares in Elsam through EnergiGruppen Jylland, bringing the total DONG share to around 24%.

June 2004
DONG increases its share in Elsam to 17.7%, an increase of 8.9%.

March 2004
EnergiGruppen Jylland buys approximately 6% of the shares in Elsam, bringing its stake to roughly 9%.

October 2003
Elsam acquires 78.8% of NESA at a price valuing NESA at DKK 10.5 billion, subsequently leading to the purchase of NESA.

January 2003
DONG acquires a 64% share in EnergiGruppen Jylland, which owns 3.1% of Elsam.

2002
DONG buys Statoil’s explorations and production activities in Denmark and becomes the operator of the Siri field. The company buys 16% of the shares in the electric company NESA. DONG becomes the lead investor in the venture foundation “New Energy Solutions”, focusing on renewable energy and new energy forms.

1999
The Siri and the Syd Arne fields are put into production. DONG purchases the municipally owned distribution company Naturgas Syd. The company takes part in two licenses in the Dutch and German part of the North Sea, close to the Danish border. DONG participates in a consortium, preparing exploration licensees close to the Faroe Islands and along the boundary between the United Kingdom and the Faroe Islands.

1998
DONG, Statoil, Phillips, and Nunaoil are awarded an exploration licence in Western Greenland.

The Lulita field in the North Sea goes into production. For the first time ever, DONG becomes a manufacturer of oil and natural gas in Denmark with a 13.6% share in the field.

1997
DONG purchases 10% of the shares in the Swedish company Vattenfall Naturgas AB.

1994
DONG opens its second subterranean natural gas storage facility. It is situated at Stenlille, Denmark, close to Sorø.

1987
DONG opens its first subterranean natural gas storage facility in Ll.Torup.

1984
The pipeline from the North Sea to Fredericia is completed and transportation starts on 1 May. The law concerning DONG’s placement in the explorations licensees goes into effect. In the first tender round, DONG becomes part of eight groups of oil companies jointly awarded 16 exploration licensees.

The Danish Underground Consortium begins delivery on 1 October. Queen Margrethe of Denmark opens the valve at the inauguration at Nybro Gasbehandlingsanlæg.

1981
DONG founds Dansk Olierør A/S which begins the construction of an oil pipeline from the North Sea to Fredericia, Denmark.

1979
The Danish Parliament decides to introduce natural gas in Denmark. The planning of the natural gas distribution net is initiated. DONG is allocated the exclusive rights for import, trade, transmission, and storage of natural gas in Denmark. The company enters into its first natural gas contract with the Danish Underground Consortium. The first of a total of five municipally owned regional distribution companies is established to handle the sale of natural gas to small and medium sized consumers.

1973
2 December, DNG changes its name to Dansk Olie og Naturgas A/S (Danish Oil and Natural Gas, DONG).

1972
27 March, Dansk Naturgas A/S is founded (Danish Natural Gas, DNG).