Business news for Mon, 31 Dec 2007 & with words group+jump. 3 news.

SAN FRANCISCO (MarketWatch) -- Energy stocks drifted slightly lower at the open Monday, the final session of 2007, amid sharply lower volume. Early action saw shares of Delta Petroleum Corp. jump as much as 24% to $19.30 a share after Kirk Kerkorian's Tracinda Corp. announced it was taking a 35% stake in the company at $19 a share. But the news failed to spur gains elsewhere in the group. The Amex Oil Index was off 0.2% at 1,574 points, the Philadelphia Oil Service Index was down 1% at 303, and the Amex Natural Gas Index was essentially unchanged at 580 points.

LONDON (MarketWatch) -- The Financial Services Authority is probing a jump in the share price of U.K. waste services group Biffa ahead of an announcement in November that it had received a 1.2 billion pound ($2.4 billion) takeover bid, according to a report in the Times (of London) newspaper. The report said the FSA has written to various parties involved in the talks to ask what they knew about any possible bid before buyout groups HgCapital and Montagu Private Equity revealed their offer. The inquiry is a part of a continuing focus at the regulator on insider trading ahead of major announcements, the newspaper added.

The Financial Services Authority is investigating a jump in the share price of Biffa, the waste services group, that occurred before an announcement that two private equity firms had made a £1.2 billion bid for the company.