She also helped pass an increase in the severance tax oil companies pay to extract oil from state land.

The resources tax is a severance tax that applies to the extraction of natural resources.

He raised revenue for the state through a severance tax on coal and enacted reforms to the educational system.

Resources that typically incur severance taxes when extracted are oil, natural gas, coal, uranium, and timber.

In 1981 Texas drew 28 percent of its state revenues from severance taxes on oil production; a decade later it was less than 9 percent.

Direct forms of regulation include cap and trade systems, extraction quotas, and severance taxes.

The case was not filed until 15 days before the severance tax was due.

In 2008, he backed an increase in the severance tax on natural gas.

Amendment 58 was a proposed initiative on the Colorado ballot of 2008 regarding Colorado's severance tax.

Both Amendment 58 and 52 regard the handling of Colorado's use of the severance tax.