Preparations for the Nabucco project started in February 2002 when first talks took place between Austrian
OMV and Turkish
BOTAŞ. In June 2002, five companies (OMV of Austria,
MOL Group of Hungary,
Bulgargaz of Bulgaria,
Transgaz of Romania and BOTAŞ of Turkey) signed a protocol of intention to construct the Nabucco pipeline. The protocol followed by the cooperation agreement in October 2002. The name
Nabucco comes from the same famous
opera of
Giuseppe Verdi, which was given to the project in the very early phases by Lutfu Atasoy (a consultant to Erdemir Engineering Company in connection with BOTAŞ) in a request for inquiry for pipeline engineering services to Kent plc. Atasoy wanted to shorten the original verbose project name, and decided to suggest
Nabucco, which he had been listening to throughout his car ride on the way to the meeting with the General Manager of Erdemir Engineering Company at the time. This arbitrary suggestion has interestingly gained lots of popularity since, likely causing the five partners to attend a live premiere of the opera at the
Vienna State Opera. In December 2003, the
European Commission awarded a grant in the amount of 50% of the estimated total eligible cost of the feasibility study including market analysis, and technical, economic and financial studies. On 28 June 2005, the joint venture agreement was signed by five Nabucco partners. The ministerial statement on the Nabucco pipeline was signed on 26 June 2006 in Vienna. On 12 September 2007,
Jozias van Aartsen was nominated by the
European Commission as the Nabucco project coordinator. In February 2008, German
RWE became a shareholder of the consortium. On 11 June 2008, the first contract to supply gas from Azerbaijan through the Nabucco pipeline to
Bulgaria was signed. The
President of Azerbaijan Ilham Aliyev confirmed on 29 January 2009, that Azerbaijan was planning to at least double its gas production in the coming five years to supply the pipeline. On 12 April 2009, the Minister of Energy of Turkey
Hilmi Güler confirmed that Turkey is ready to sign a deal, provided that Turkey gets 15% of the natural gas to be carried through the Nabucco pipeline. On 27 January 2009, the Nabucco Summit held in Budapest. On 24–25 April 2009, the Nabucco pipeline was discussed, among other energy issues, at the high-level energy summit in Sofia, and on 8 May 2009, at the
Southern Corridor Summit in
Prague. The intergovernmental agreement between Turkey, Romania, Bulgaria, Hungary and Austria was signed by five prime ministers on 13 July 2009 in Ankara. The European Union was represented at the ceremony by the President
Jose Manuel Barroso and the
Commissioner for Energy Andris Piebalgs, and the United States was represented by
Special Envoy for Eurasian Energy Richard Morningstar and Ranking Member of the
United States Senate Committee on Foreign Relations Senator
Richard Lugar. Hungary ratified the agreement on 20 October 2009. Bulgaria ratified the agreement on 3 February 2010. Romania ratified the agreement on 16 February 2010. Turkey became the final country ratifying the agreement on 4 March 2010. The legal framework set up by the intergovernmental agreement was strengthened further with the signing in 2011 of the Project Support Agreements (PSAs) between Nabucco and each of the Transit countries. The main elements of the PSAs are the affirmation of an advantageous regulatory transit regime under EU law; the protection of the Nabucco Pipeline from potential discriminatory changes in the law; and support for legislative and administrative actions for the further implementation of the project. In May 2012, the Nabucco consortium submitted a Nabucco-West proposal to the Shah Deniz consortium. On 3 March 2013, Nabucco International signed a memorandum of understanding with the TANAP consortium. However, on 28 June 2013 Shah Deniz consortium announced that it had chosen the
Trans Adriatic Pipeline over Nabucco for its gas exports, prompting
OMV CEO Gerhard Roiss to regard the Nabucco project as "over". ==Route==