Crystal Watts and Chelsea Hutt, both aged 15 from Blackbird Leys, were last seen on Thursday at their homes.
Crystal is slim, around 5ft and has highlighted hair. Chelsea is around 5ft 5ins, with shoulder length dark brown hair. She was last seen wearing a black and white coat with a fur hood, a grey hooded jumper with a brown handbag and a coloured bag on her back.
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Thursday morning's weather for the east of the region
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Robert Weighton and Alfred Smith only became pen pals two years ago - and today Britain's oldest men both celebrated their 109th birthdays.