BP has stepped up its efforts to challenge what it believes are unjustified compensation payments under the multibillion-dollar settlement it agreed with victims of the 2010 Gulf of Mexico oil spill. The British oil group has doubled the rate at which it appeals against compensation awards to thousands of US businesses and individuals by Patrick Juneau, the independent administrator for claims under the settlement…BP said in a court filing that it had been “ordered to pay hundreds of millions of dollars – soon likely to be billions – for fictitious and inflated losses”. It has launched a legal challenge against the method used by Mr Juneau to calculate compensation…