News Corp. reached a tentative agreement for the purchase of Dow Jones & Co. at its original $5 billion offer price. The deal will be put to the full Dow Jones board this evening for its approval, said people familiar with the situation.

In what could be the final round of talks, yesterday negotiators from News Corp. and Dow Jones -- including Chief Executive Richard F. Zannino, company advisers and two independent directors -- reached an agreement in principle on a deal first proposed by News Corp. in mid-April. News Corp....