new york u.s. secretary state rex tillerson former chairman chief executive exxon mobil corp use alias email address oil company send receive information relate climate change matter accord new york attorney general eric schneiderman attorney general office say letter monday find tillerson use alias email address pseudonym wayne tracker least 2008 2015. wayne tillerson middle name letter send new york state judge oversee schneiderman investigation whether exxon mislead shareholders public climate change statement monday exxon spokesman alan jeffers say email address wayne.tracker exxonmobil.com part company email system put place secure expedite communications select senior company officials former chairman broad range business-related topics jeffers say company provide 2.5 million page document response subpoena schneiderman office would respond claim letter court file state department spokeswoman decline comment matter letter see reuters say exxon previously disclose alias account ask judge order exxon explain whether document wayne tracker email 34 additional account assign exxon executives board members preserve letter say exxon produce 60 document bear wayne tracker email never say use tillerson relevant communications exxon ask court order exxon identify whether email account use tillerson exxon top executives particular mr. tillerson make multiple representations center oag attorney general office investigation potentially false mislead statements investors public letter say case people state new york pricewaterhousecoopers exxon mobil corporation new york state supreme court new york county 451962/2016 tillerson use email alias exxon talk climate new york attorney general