(Bloomberg) -- The US imposed the first sanctions for violations of the price cap on Russian oil introduced by the Group of Seven nearly a year ago, as signs mount the restriction is failing to cut Kremlin revenues as hoped.Most Read from BloombergIsrael Latest: Chief Says Military Failed in Its Duty to ProtectIsrael Latest: Hamas Leaders Targeted as Ground War LoomsApollo CEO Marc Rowan Demands UPenn Leaders Quit Over ‘Antisemitism’Goldman Sues Malaysia as 1MDB Settlement Dispute EscalatesIMF C