Section 225 ILCS 725/23.4(1) Upon the receipt of a petition for unitization, the Department shall fix the time and place for a public hearing, which shall be no less than 30 days nor more than 60 days after the date of the filing of said petition. The Department, at petitioner's expense, shall give notice of such hearing under this Section at least 10 days prior to the hearing in the following manner: (a) by mailing such notice by United States Mail, postage prepaid, and directed to the persons named in the petition at their last known addresses 10 days prior to the hearing; and(b) by publication of such notice for service on those persons whose addresses are unknown or whose names are unknown, once each week for 2 consecutive weeks, with the first notice appearing at least 10 days prior to the hearing in a newspaper of general circulation published in each county containing some portion of the proposed unit area.(2) All notices for public hearing under this Section shall issue in the name of the State of Illinois and shall be signed by the Director. Such notices shall specify the number and style of the proceedings, the time and place of the hearing, the purpose of the hearing, the name of the petitioner, and a legal description of the lands contained within the proposed unit area.