What is the relationship between Bob Dudley and BP in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Financial analysts congratulated BP CEO Bob Dudley and Chief Financial Officer Brian Gilvary during a conference call Thursday, and investors cheered the move, pushing BP shares up 5 percent in midday trading.

Answer: employer