The Cook Illinois Affidavit as to Acreage Assigned to Spacing/Proration Units Around Producing Wells by Lessee is a legal document that pertains to the allocation and division of land around producing wells. This affidavit is specifically used in Cook County, Illinois, and plays a crucial role in determining the rights and responsibilities of the lessee (oil and gas operator or leaseholder) regarding the acreage assigned to spacing and proration units. In essence, the affidavit outlines the process through which the lessee designates specific portions of land surrounding the producing wells for production and extraction purposes. The assigned acreage is divided into units, known as spacing or proration units, which are delimited areas within which the lessee has the right to explore and extract oil or gas resources. It is important to note that there might be different types of Cook Illinois Affidavit As to Acreage Assigned to Spacing/Proration Units around producing wells based on specific agreements, lease terms, or regulations. Some common variations may include: 1. Cook Illinois Affidavit as to Acreage Assigned to Spacing Units: This document focuses on the assignment of acreage solely for spacing units, which determine the boundaries within which drilling and extraction activities can take place. It ensures the efficient utilization of resources by spacing out the wells in a manner that optimizes production and minimizes wastage. 2. Cook Illinois Affidavit as to Acreage Assigned to Proration Units: This type of affidavit primarily addresses the allocation of acreage to proration units. Proration units establish the share of production entitlement for each well within a designated area. It sets the framework for fair distribution of resources and ensures compliance with regulatory guidelines. 3. Cook Illinois Affidavit as to Acreage Assigned to Spacing/Proration Units: This is a comprehensive affidavit combining both spacing and proration units. It accounts for the delineation of acreage for drilling locations as well as the proportionate distribution of production within those designated areas. These different types of affidavits cater to various aspects of oil and gas operations, allowing for well-managed and organized extraction activities while honoring the rights and responsibilities of the lessee. The Cook Illinois Affidavit As to Acreage Assigned to Spacing/Proration Units Around Producing Wells by Lessee ensures transparency, compliance with regulations, and fair utilization of hydrocarbon resources in Cook County, Illinois.