Delta Petroleum Corp. (NASDAQ: DPTR), an oil and gas exploration and development company, recently up $3.26 to $18.60:

DPTR announced that Tracinda Corp, a private investment company of Kirk Kerkorian, will invest $684 million to acquire common stock of DPTR at $19 per share. DPTR January option implied volatility of 59 is below a level of 74 from last week and near its 26-week average of 60 according to Track Data, suggesting non-directional price fluctuations.

Volatility Index S&P 500 Options: VIX up 1.37 to 22.11.

Option volume leaders today were: XM Satellite Radio Holdings Inc. (NASDAQ: XMSR), Apple, Inc. (NASDAQ: AAPL), General Motors Corporation (NYSE: GM), Citigroup Inc. (NYSE: C) according to Track Data.

Options Update is provided by Stock Specialist Paul Foster of theflyonthewall.com

Add Kirk Kerkorian to the list of legendary investors making big bets on energy. Kerkorian's trading vehicle Tracinda has purchased a 35% stake in Delta Petroleum (NASDAQ: DPTR) for $684 million, sending shares of Delta up more than 20%.

The deal will give Delta a direct capital infusion, since Kerkorian is acquiring the stake from the company, rather than buying shares on the open market as most investors. Delta will use the cash to invest in its drilling activities in the Piceance and Paradox Basins.

Delta also got a fair price from Kerkorian, extracting $19 per share from the investor. That Delta got a premium of more than 20% in the private placement indicates that there was strong interest in the company; often private placements are at substantial discounts to the market price, as was the case with Countrywide Financial (NYSE: CFC) which received a cash infusion from Bank of America (NYSE: BAC).

Kerkorian will be able to control one-third of the company's board of directors as part of the agreement.

MOST NOTEWORTHY: Delta Air Lines, Inc (DAL), Goodrich Corp (GR), Opnext, Inc (OPXT), Terex Corp (TEX) and Aruba Networks (ARUN) topped today's most noteworthy initiations list:

• UBS started shares of Delta Air Lines Inc (NYSE: DAL) with a Reduce rating and $17 target on valuation and management's overly optimistic outlook.

• Deutsche Bank prefers to wait of a better entry point for Goodrich Corp (NYSE: GR) and initiated shares with a Hold rating.

• Opnext Inc (NASDAQ: OPXT) was initiated at JP Morgan with a Neutral rating citing concerns regarding new transceiver margins.

• Prudential believes Terex Corp (NYSE: TEX) is well positioned to take advantage of strong sustainable growth in the global infrastructure and mining markets over at least the rest of the decade, starting shares with an Overweight rating.

• RBC Capital started Aruba Networks (NASDAQ: ARUN) with a Sector Perform rating while Lehman Bros initiated Aruba with an Overweight rating.

OTHER INITIATIONS:

• Deutsche Bank started Delta Petroleum Corp (NASDAQ: DPTR) with a Buy rating and $27 target.

• JMP Securities started Hersha Hospitality Trust (AMEX: HT) with an Outperform rating and $14 target.

• Credit Suisse assumed coverage of Interline Brands, Inc (NYSE: IBI) with an Outperform rating and $34 target.

• Credit Suisse reinstated Brooks Automation, Inc (NASDAQ: BRKS) with a Neutral rating.

• Goldman Sachs started CenturyTel, Inc (NYSE: CTL) with a Sell rating and $42 target on valuation.

• B. Riley initiated Insteel Industries, Inc (NASDAQ: IIIN) with a Buy rating and $24 target.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).