At the end of 2007 with WMB alive and operating its parent WMI had a market cap of 11.5B - before WMB was seized by the FDIC. But the “conservative“ figure coming back to former WMI Escrow holders 17 years later is 1 Trillion minimum :-) https://www.sec.gov/Archives/edgar/data/933136/000104746908006870/a2185889z10-ka.htm