sale/leaseback 2014in may 1999 , a subsidiary of the company acquired six electric generating stations from new york state electric and gas ( 2018 2018nyseg 2019 2019 ) . concurrently , the subsidiary sold two of the plants to an unrelated third party for $ 666 million and simultaneously entered into a leasing arrangement with the unrelated party . this transaction has been accounted for as a sale/leaseback with operating lease treatment