Aug 22 (Reuters) - Williams Companies Inc:
* Williams comments on Corvex plan to nominate directors
* "Intends to appoint three new, independent directors to its board of directors prior to company's 2016 annual meeting"
* Williams expects to announce new board appointments in coming weeks
* Says board indicated it would promptly make a determination on corvex proposal once new board members are appointed Source text for Eikon: Further company coverage: