Not exactly "as of today", but the last time I was there hypermarket petrol was about 1.05 euros and diesel around 88 cents. Autoroute prices are not bumped up as much as they are in the UK, and I would expect to pay around 1.10 euros for petrol and 93 cents for diesel.
Just back from three weeks in france traveled down to the med spanish border over to Ardeche up to the Dordogne and back via Le Havre. Diesel prices the same all over supermarkets 1.03-1.07 service stations 1.09-1.12. Went into Spain on quick visit 300mts over border .97. Hope this helps, have a good holiday!
hi geoff have just returned 2 weeks ago petrol varied from 1.22 and won place not far from angers was 1.39 i was very low and found another about 2 miles on at 1.24 i think desil was about 1.05 some of the supermarkets a cheeper but its not very easy if you are towing all the best have a great time.