What is my tax basis in my new shares of WMB?

Q:

What is my tax basis in my new shares of WMB?

A:

A U.S. holder’s tax basis in any shares of WMB common stock received in the transaction should equal the closing WMB share price on the transaction close date, August 10, 2018.  The WMB closing share price on August 10, 2018 was $31.79.  A U.S. holder’s holding period for any shares of WMB common stock received in the transaction on August 10, 2018, begins August 10, 2018.