NEW YORK (AP) - Exxon is raising its quarterly dividend by 21 percent. In doing so, it becomes the top corporate dividend payer, surpassing AT&T.

The Irving, Texas, oil giant raised the quarterly payout to 57 cents from 47 cents. That brings its annual payout to $2.28 per share.

Exxon Mobil Corp. will now pay $10.75 billion in dividends per year, according to Standard & Poor's, up from $9 billion. AT&T Inc. is second at $10.44 billion. Apple Inc., which restored its dividend in March, is next at $9.88 billion.

The move raises the company's dividend yield to 2.6 percent. The dividend yield measures annual payouts to shareholders against a company's stock price. Rival oil major Chevron's dividend yield is 3.1 percent. AT&T's is a hefty 5.5 percent.