BP’s compensation fund for Gulf oil spill victims has issued a final settlement payment to just one of the thousands of people and businesses waiting for checks, records show, and that $10 million payout went to a company after the oil giant intervened on its behalf. BP won’t identify the business, citing confidentiality, but acknowledges it lobbied for the settlement. The amount far exceeds smaller stopgap payments that some individuals and businesses have received while they wait for their own final settlements.