225 ILCS 728/30

(a) To fund the activities of the Illinois Petroleum Resources Board, an assessment shall be levied in the amount of one-tenth of 1% of gross revenues of oil and gas produced from each well in the State of Illinois. (b) The assessment levied by subsection (a) of this Section shall be deducted from the proceeds of production and collected by the first purchaser. The assessment, which is imposed on the interest owner, shall be remitted to the Board by the first purchaser on an assessment form provided by the Board, along with any other requested production records in compliance with assessment payments and enforcement provisions of this Act and rules adopted by the Board. The remittance and specified data shall be delivered to the Board no later than the 15th day of each month following the end of the month in which the assessment was collected. The Board shall deposit the assessment into accounts, operating or reserve, to be used as authorized by this Act. (c) The Board shall be responsible for taking appropriate legal actions to collect any assessment which is not paid or is not properly paid.