The Rotoliptic pump is a positive displacement pump that consists of only two parts. This unique pump architecture means simple deployment, lower operating costs, and applicability to a wide range of pumping needs. While adaptable to a downhole drive system, being surface driven is the best option to fully capture all of the efficiency benefits of the unique rotoliptic pump. The Rotoliptic pump has similar high operating efficiencies as an elastomeric PCP but without the aromatic and temperature limitations. This allows our pump to take those benefits to thermal and higher aromatic applications.