BP profits halve as oil major struggles to turn around business / BP profits tumble after 'planet-wrecking' shift back to oil and gas / Analysis: BP shareholders want it to make money, not climate policy / BP shares pop 7% after reports activist hedge fund Elliott has taken a stake in the struggling British oil major / BP to sell its U.S. onshore wind business / BP to hand investors $7bn this year as it expands oil operations / UK oil giant BP to hand shareholders $7 billion this year by buying back stock even as profit falls / BP shares drop 4.3% after warning of up to $2 billion impairment, weak refining margins / BP bolsters shareholder payouts as annual profits halve