Far From The Madding Crowd Pub (map)
Far From the Madding Crowd is located between British Study Centre and Eckersley Oxford English schools on Friars Entry i.e. nearby to the Tescos on Magdalen Street.
I generally take a group of English language students out anyway every Thursday after the English conversation circle (from 5-6pm with Oxford language Lounge upstairs at Coffee Republic) so the plan is to try and get locals out to join us too for a drink after your work. If you can't get there on time at 7, that's fine too but we will likely call it a night by 9pm.
You don't need to RSVP and these meetups are free but if you do RSVP here, then of course it always encourages other people to then come too. On average I take out about 10 to 20 students every Thursday evening to pub night so we are always a good sized social group and most of the students are in their 20's or 30's and speak English fairly well, by the way. Naturally they are also very keen to socialise with locals and not just with other students.