Thames Valley Police is appealing for witnesses to an incident of grievous bodily harm in Bicester.
The incident occurred on the forecourt of the Gulf petrol station in Buckingham Road, Bicester, at about 3.20am on Saturday (30/8).
The victim, a man, was with a friend when they became embroiled in an altercation with a group of four or five men. The victim was hit with a golf club during the incident.
The offender who hit the victim with the golf club is white, in his mid to late twenties, about 5ft 10in, medium to stocky build, with short dark hair. He was wearing a dark-coloured jumper.
A second suspect involved in the altercation is white, in his mid to late twenties, slim, with short blonde hair. He was wearing a short sleeved T-shirt.
The victim sustained a fractured eye socket and broken jaw. He is currently being treated at the John Radcliffe Hospital.
If you have any information about the incident then please contact investigating officer, Det Con Joe Stevenson of Force CID via the Thames Valley Police Enquiry Centre on 101.
If you don't want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org. No personal details are taken, information is not traced or recorded and you will not go to court.