The main purpose of this legislation is to amend the Mineral Leasing Act to allow for the commingling of production from different sources of oil and gas. This change aims to reduce the environmental impact by minimizing surface disturbances associated with drilling and production activities. Key provisions of the legislation include the requirement for the Secretary of the Interior to approve applications for commingling production from multiple sources, such as oil and gas leases and other properties. This approval can occur before the production is measured for royalty purposes.