To amend the Internal Revenue Code of 1986 to provide an investment tax credit for biomass heating property and repeal the passive activity limitation exception for working interests in oil and gas property.

Amends the Internal Revenue Code to: (1) allow a 30% energy tax credit for investment in certain biomass heating property for periods ending before January 1, 2014; and (2) repeal the exemption from passive activity rules for working interests in oil or gas property.