Glasgow Rangers and Brentford have also been in touch this month about the 18-year-old prospect with offer of a loan for the remainder of the season.
Oxford made his competitive debut for the Hammers in 2015 in the Europa League at the age of 16, becoming the club’s youngest-ever player in the process.
He also made seven appearances in the Premier League that season.
He signed a new four-and-a-half year deal last month but has struggled for first-team opportunities this term although to be fair he has only just returned from injury.
The prospect of a loan to Brentford could bring a different dimension to a possible Scott Hogan deal with Oxford offered on loan as a possible sweetener to break the deadlock.