All the investors in Lancaster Biofuels' proposed $100 million ethanol plant in Conoy Township were introduced Tuesday night during a presentation to township officials.

There are four partners, each with a 25-percent investment. None was involved in Penn-Mar Ethanol's proposal at the same site two years ago. That plan was later withdrawn.

The Lancaster Biofuels investors are:

• Worley & Obetz, a 50-year-old Manheim-based energy company headed by Seth Obetz and his father, Robert Obetz Jr.

• Celion, a new California-based ethanol developer. Primary investors include billionaires Vinod Khosla and Richard Branson. Celion just hired former British Petroleum Vice President Mark Noetzel as CEO. Another investor is Jeff Skoll, first president of eBay. Noetzel, who graduated from the University of Pennsylvania, made a pitch for the Lancaster ethanol plant Tuesday night in Conoy Township. The local plant would be Celion's third ethanol facility.

• Zymolotec, a partnership of Ron Kreider, co-owner of Kreider Farms, one of the largest poultry and dairy operations in Lancaster County; Art Mann Sr., chief executive officer of Donsco Inc. of Mount Joy and Wrightsville; and Dan Hobson and Andy Jones, both of Lancaster-based Performance Industries, a consulting company.

• Herb Flosdorf, a consultant and former head of the Lancaster County Solid Waste Management Authority.