[3] DeGolyer and MacNaughton confirmed that as of 31 December 2009 TNK-BP's total proved reserves amounted to 11.667 billion barrels (1.8549×10^9 m3) of oil equivalent.
[citation needed] On 1 September 2003, BP and a group of Russian businessmen represented by the AAR Consortium (Alfa-Access-Renova) announced the creation of TNK-BP, a strategic partnership to jointly hold their oil assets in Russia and Ukraine.
[6] In October 2011, the TNK-BP agreed to acquire a 45% stake in Amazon oil exploration blocks from Brazil's HRT Participaoes [pt] for $1 billion.
In 2009 the company (excluding its 50% share in Slavneft) produced on average 1.69 million barrels per day (269×10^3 m3/d) of oil equivalent.
The company operates a retail network of approximately 1,400 filling stations in Russia and Ukraine working under the BP and TNK brands.
During the dispute, it was rumoured that some Western BP executives experienced visa problems, and the American CEO Robert Dudley was accused by AAR of having violated Russian laws.
[13] In January 2011, BP and Russia's state oil company, Rosneft, formed a strategic partnership on Arctic development.
In March 2011 the Stockholm International Arbitration court blocked the BP-Rosneft deal as breaching TNK–BP earlier contractual arrangements.
[14] AAR's legal action and minority shareholder's claims led to the collapse of the BP-Rosneft deal in August 2011, when BP was replaced with ExxonMobil as Rosneft's strategic foreign partner in the Arctic.
In 2012 Russia's Natural Resources Minister Yuri Trutnev announced that regulators plan to seek damages from TNK-BP as one of the biggest polluters of the Ob and Yenisei river basins in Siberia.
According to TNK-BP, the company has paid $2.1 billion for clean-up since 2003 and has established a $500 million fund "to resolve the inherited environmental problems, accumulated since 1962.