This company seems to have been delisted
Reason: Filed for chapter 11 bankruptcy on December 2, 2001.
Last recorded trade on: December 31, 2001 Source: https://en.wikipedia.org/wiki/Enron_scandal
Enron Corporation was an American energy, commodities, and services company.
At the end of the year 2001 news of widespread fraud within the company became public, and on December 2, 2001, Enron filed for Chapter 11 bankruptcy.