Chesapeake Energy's GAAP loss from February 10 to September 30, 2021 was $0.489 billion, down 8 times from $3.951 in the prior year. Revenue fell 51% to $2.463 million from $3.732 billion a year earlier. The financial results for the same period in 2020 are Chesapeake Energy's performance before the Chapter 11 restructuring, which is not fully comparable to the company's post-restructuring performance.