NATHAN Chapman scored two tries as second-placed Wallingford beat Reading Abbey 17-6 in Southern Counties North.
Dan Sadler also crossed for the hosts, with Jackson Sayce converting once.
Wallingford had chances to secure the four-try bonus point but wasted several chances.
Bicester made it three wins in a row when beating Marlow 52-10.
But Littlemore remain rooted to the bottom after suffering an 89-0 defeat at Buckingham.
Grove lost 22-19 at Corsham in Southern Counties South.
Tries from Tom McCarthy and Guy Nicholl, Dave Maryon converting once, saw the sides head into the break at 12-12.
Ben Davies crossed, Maryon adding the extras, to level the match at 19-19 with seven minutes to go, but a late penalty saw Corsham earn victory.
Oxford’s fast-start proved the difference in a 36-5 victory at Wheatley in the BB&O Premier.
The visitors were 24-0 up after 20 minutes, thanks to tries from Tim James, Tom Murton, Ben Harden and Karl Crockford, Shane Turner converting twice.
Murton’s second score made it 29-0 at the break.
Wheatley lost Jack Smith, Oli Kenworthy and Spencer Bailey to injury.
And with Jeremy Tanner in the sin-bin they were forced to end the game with 13 men.
But they grabbed a consolation try through Dan Rule.
However, Crockford crossed again for Oxford, who had Dan Savage sent off late on, Turner converting.
Meanwhile, Gosford All Blacks slipped to back-to-back defeats when falling to a 16-15 defeat at Didcot.
In the Championship, Matty Wheeler scored five tries as high-flying Chipping Norton ran riot when beating Faringdon 92-0 away.
Tom Tanner also crossed three times for the visitors.
Harwell were beaten 15-7 at home by Aldermaston.
Aaron Spencer crossed for the hosts, Tom Nicholas converting.
Abingdon earned a 32-20 win at Phoenix.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here