On October 30, 2017, Vistra Energy and Dynegy Corp. announced an all-stock merger which aims to create the leading integrated power company in the United States. The companies anticipate closing the transaction in the second quarter of 2018.  The deal is a $1.74 billion offer for Vistra to acquire Dynegy.  The combined company would own more than 46 GW of capacity, surpassing NRG Energy, the largest independent power producer in the country. Approximately 60% of that generation is gas-fired, and almost 85% of it is located in the ERCOT, PJM and ISO-NE competitive power markets.