The Department of Energy's National Energy Technology Laboratory (NETL) intends to award a sole source contract for a subscription to the ResFracPro simulation software, which is essential for fully coupled hydraulic fracture, reservoir, and geomechanics reproduction. This proprietary software, unique to ResFrac, is critical for accurately modeling subsurface processes, as it simultaneously addresses fluid flow and fracture propagation, unlike conventional simulators that treat these processes separately. Interested parties who believe they can meet NETL's requirements must submit written evidence of their capabilities to Rebekah Parks at rebekah.parks@netl.doe.gov by 1:00 PM ET on April 11, 2025, as this notice is not a request for proposals and the government retains discretion over the procurement process.