This excerpt taken from the BP 20-F filed Mar 4, 2008.
Authorization of financial statements and statement of compliance with International Financial Reporting Standards
The consolidated financial statements of the BP group for the year ended 31 December 2007 were authorized for issue by the board of directors on 22 February 2008 and the balance sheet was signed on the boards behalf by P D Sutherland and Dr A B Hayward. BP p.l.c. is a public limited company incorporated and domiciled in England and Wales. The consolidated financial statements have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB) and IFRS as adopted by the European Union (EU). IFRS as adopted by the EU differs in certain respects from IFRS as issued by the IASB, however, the differences have no impact on the groups consolidated financial statements for the years presented. The significant accounting policies of the group are set out below.
Basis of consolidation