Clayton Homes (CMH

), a manufactured-housing company, agrees to be acquired by Berkshire Hathaway (BRK.B

) for $12.50 per share, or about $1.7 billion. (4/2)

Financial transactions processors Concord EFS (CE

) and First Data (FDC

) agree to merge in an all-stock transaction valued at about $7 billion. The companies said First Data will exchange 0.40 common shares for each Concord common share held, which values Concord at a buyout price of $13.87 a share. (4/2)

SBC Communications (SBC

) has dropped out of the auction process for the DirecTV unit owned by Hughes Electronics (GMH

), possibly leaving a clear field for News Corp. (NWS

), according to the Wall Street Journal. (4/2)

King Pharmaceuticals (KG

) confirms it does not plan to proceed with its acquisition of Elan Corp.'s (ELN

) primary care business unit. Elan is suing to force King to close the transaction. (4/2)

Frontier Oil (FTO

) agrees to buy Holly Corp (HOC

) for $28.96 in cash and stock per HOC share, in a deal valued at about $449.2 million. (3/31)