Dec 11 (Reuters) - The following are the top stories in the Financial Times. Reuters has not verified these stories and does not vouch for their accuracy.
BOSTOCK QUITS RBS FOR SANTANDER
BHP steps up U.S. shale output
FIRST GROUP UNDER ATTACK FROM U.S. ACTIVIST
TESCO BANK TO ENTER CURRENT ACCOUNT MARKET
HEALTHCARE CHIEF LATEST EXECUTIVE TO QUIT 3I GROUP
Royal Bank of Scotland's finance director of just 10 weeks, Nathan Bostock, has resigned to become deputy chief executive of Santander UK.
Mining Giant BHP Billiton said it would invest $4 billion a year in its U.S. shale business, which it expects to generate $3 billion of cash annually by the end of the decade.
FirstGroup has received a letter from one of its biggest shareholders, urging the British bus and rail operator to sell its U.S. businesses in order to pay down debt.
Tesco Bank has laid out plans to enter the current account market within months, a move that will restrain its profit growth for the next few years.
3i Group's global head of healthcare is to leave the London-listed investment group after 12 years to raise his own fund.