BP says a
containment cap system placed on the
blown-out well last week collected 15,800 barrels of oil on Wednesday - slightly up on the 15,010 barrels collected in the previous 24-hour period.
The company has come under increasingly sharp attack by some US politicians for its handling of the spill, described as the worst environmental disaster the US has faced.
Shares in the British oil giant have nearly halved over the last couple of months.
The UK government on Thursday sought to play down fears expressed by some senior figures of "anti-British rhetoric" in the US.
Prime Minister David Cameron, who will discuss BP with President Obama this week, said he understood the US government's "frustration".
Please explain to me the parts in bold.
Source :
http://news.bbc.co.uk/2/hi/world/us_and_canada/10286072.stm