PEEK-Sep membranes can provide gas treatment solutions that meet pipeline hydrocarbon dew point requirements in cases where the amount of NGL is too low to allow for economic recovery. The membrane system is simple and reliable and does not require extensive feed gas pre-treatment beyond an inlet coalescing filter. Heavy hydrocarbons and other impurities are removed as a low pressure permeate stream, while generating a high pressure product stream that meets the pipeline specification. The reject permeate stream finds use as a fuel or is recompressed for further processing.