This requirement is a sole source follow-on contract for brand name specific Aspen Technology, Inc. gas and royalty software, aspenONE® Engineering, that can model and analyze natural gas processing plants with various processing technologies as well as estimate the costs (capital and operations/maintenance) associated with equipment within these plants. The requirement includes the following:- A license to a single software package that includes both process/equipment design and cost estimation. For instance, a plant simulation module, a simulation workbook and an economic package all with one license fee.- Full access to upgrades, patches, and new features.- Live and online training and technical support as needed. In addition, online training and support needs to be integrated into the software.- Demonstration and justification behind cost estimates and other outputs to ONRR for