Beginning in January 2007, the measure would impose a severance tax on oil production in California to generate revenues to fund $4 billion in alternative energy programs over time. (The term “severance tax” is commonly used to describe a tax on the production of any mineral or product taken from the ground, including oil.) The measure defines “producers,” who are required to pay the tax, broadly to include any person who extracts oil from the ground or water, owns or manages an oil well, or owns a royalty interest in oil.