Siebel and Oracle? A match made in...

Siebel Systems got a jolt to its stock price Friday morning, after a financial publication reported the enterprise software maker is in buyout talks with its arch-nemesis Oracle.

Siebel's stock rose more than 4 percent when it opened at $8.95 a share, following a report by The publication, citing a source close to the company and analysts, reported that talks began last week and that the figure being bounced around is about $5 billion.

After swallowing up its former rival PeopleSoft--once headed by former Oracle executive Craig Conway--Oracle CEO Larry Ellison may be angling to consume another enterprise software company, which, by coincidence, was founded by Oracle alumni Tom Siebel.

And who says it's only fish that eat their young?

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