From the RFL website:
Oxford - Fleming, Carter, Brooker, Burnett, Nathaniel, Canterbury, Kitson, Igbinedion, Cullimore, Nicholson, Griffith, Withington, Allan, Hoggins, MacDonald, Hayes, Siddons, Gardiner, Davies

So that's probably:
Scott Fleming, Errol Carter, Marcus Brooker, Harvey Burnett, Josh Nathaniel, Casey Canterbury, Nathan Kitson, Dan Igbinedion, Chris Cullimore, Aaron Nicholson, Harry Griffith, Adam Withington, Danny Allan, Andy Hoggins, Curtis MacDonald, Mark Hayes, Jordan Siddons, Luke Gardiner, Tom Davies

Dual reg - none
Loan - Aaron Nicholson, Chris Cullimore (both Keighley)

Compared to last week:
Out - Ryan Backhouse, Jack Pickles, Adam Flintham
In - Errol Carter, Jordan Siddons (might be Chris Siddons as I thought Jordan was down for an operation), Tom Davies

North Wales - Johnson, Massam, Hurst, Thompson, Saunders, Smith, Hansen, Holland, Hudson, Walker, Atherton, Wild, Brickhill, Baker, Thomas, L Bent, Wilkinson, Warburton, Davies