Fairbanks News Miner/AP.  Allowing municipalities in on natural gas pipeline negotiations would be as “impracticable as having 60 legislators sitting at the table,” Gov. Sean Parnell (NGP Photo) wrote to four local governments concerned about property tax deals the state could cut with producers.  Municipalities, including the Fairbanks North Star Borough, have raised concerns about agreements the state penned with North Slope producers and TransCanada that could allow the gasline to make payments based on throughput in lieu of traditional property taxes.