[citation needed] Alfa Group is notably involved in a commercial dispute with Norwegian mobile phone company Telenor over the control of Russian company Vimpelcom[21] Over 10 years, Alfa Group has found itself in legal battle with business partners from Canada (NoreX), Great Britain (BP), Sweden (TeliaSonera), Norway (Telenor), Turkey and Indonesia.

Federal Reserve executive Paul Volcker has accused Alfa Group of violation of the UN sanctions against Iraq during Saddam Hussein's regime, and for pressure exercised against KPMG during their spring 2005 investigation of a Bermuda registered, Russian telecom company, Ipoc International.

[22] During Project Yucca, the shareholders of Diligence were CEO Nick Day who was a former British agent, Chairman of Diligence Richard Burt who was a former United States ambassador to Germany under Reagan, the Exxel Group which is a Buenos Aires private equity firm, and Edward Mathias from Carlyle Group which is a private equity company from Washington, D.C.[22][23] Alfa Group's legal disputes with BP date back to 1991, when the Canadian oil company Norex represented a newly formed, Russian-Canadian joint venture in Siberia's oil industry, operating the marginal Chernogor oil-fields close to Khanty-Mansijsk.

Thereby, TNK controlled 60% of the debt claims, and according to NoreX the Alfa Group took over Chernogorneft's oil sales below market prices.

[25] Resulting in a forced sell-out of the company, Sidanko (BP) was rejected from taking part in auctions, and remaining bidders were legally restrained from offering more than US$200 million for Chernegorneft - a mere fifth of its assumed value.

Letters of protest from prime minister Tony Blair to president Vladimir Putin helped little, the legally BP-owned company was forcibly sold to TNK below market price.

On 11 April and 26 June 2001, TNK again got two legal victories in the Khanty-Mansijsk arbitration court, first through a reversal of earlier regulation regarding Chernogorneft's stock capital in the joint-venture, and thereafter through a nullification of the voting powers in 497,142 out of the 600,000 shares held by NoreX.

[26][27][28] In 1998, both Quenon and Shapburg formed the Luxembourg based Compagnie Financiere pour l'Atlantique du Nord which changed its name to Gaumur Holding in March 2000 and was entirely controlled by the Baugur Group of Iceland.

Norex brought the case before a U.S. Federal court in New York in February 2002, demanding US$1.5 bn in redemption from TNK and Alfa Group.

[34] Jones Day represented its client Alfa-Access-Renova (AAR) of Len Blavatnik, Mikhail Fridman, and Viktor Vekselberg in United States court.

[39] After the trial, Alfa Group declined during four years to take part in the board of managers meetings in Ukrainian Kyivstar, thereby blocking the normal procedures of annual assemblies, approval of accounts, and payments of dividends.

In 2008 Telenor achieved several legal approvals in the U.S. Federal Court of Appeal in New York, and in 2009 the Alfa Group submitted to the rulings and took up normal shareholder activity in Kyivstar.

On 16 December 2008, Alfa Group resumed normal shareholder activities, joined in the election of a new board of directors, and agreed to pay accumulated dividends.

Judge Gerard E. Lynch established that Alfa Group had reduced their ownership in competing mobile operations in Ukraine.

[45] When Minister of Foreign Affairs Jonas Gahr Støre visited his Russian counterpart Sergej Lavrov in Moscow on 24 March 2009, the strife between Alfa and Telenor was elevated to become the prime issue.

Roland Nash, Chief of research at Renaissance Capital viewed the case as a test to the credibility of Russia's legal system and openness to foreign investment.

[48] And judge Gerard E. Lynch, presiding in the New York appeal cases lodged by Telenor over Kyivstar, has criticized Alfa Group's utilisation of remote courts in Western Siberia.

[53] In January 2007, a court of appeal in Geneva, Switzerland, ruled that Cukurova had violate the shareholder's agreement by selling their shares on to the Alfa Group.

A court of appeal in Vienna, Austria confirmed this ruling on 7 March 2008, and repeated the demand to enter into negotiations with Alfa Group over at transfer of the shares, but with no practical results.

On 7 August 2009 the International Chamber of Commerce issued an award stating that Cukurova must deliver all the remaining shares in Turkcell Holding to TeliaSonera.