The calculated distance (air line) between Novosemeykino and Neftegorsk is approximately 52 miles respectively 83 kilometers.
By car or train, the actual journey to Neftegorsk is certainly longer, as only the direct route (as the crow flies) between Novosemeykino and Neftegorsk has been calculated here.
Air line (approximately)
83 kilometers
45 nautical miles