Yesterday, Royal Dutch Shell broke the £200bn valuation:

www.shell.com

It is two share listings, Shell A and Shell B

http://www.shareshop.hsbc.co.uk/shareshop/security.cgi?csi=133655

http://www.shareshop.hsbc.co.uk/shareshop/security.cgi?csi=133755

Yesterday:

Shell A was worth: £ 108,862m
Shell B was worth: £ 91,390m

A combined value of £200,252 million = £200.252 Bn.