ATM Machines
Clermont--At the Credit Agricole on the N3.
Montfaucon--In the lobby of the Credit Agricole on the town square.
Gas Stations
Consenvoye--Shell, on the Route Nationale running through town
Damvillers--Total on the Route de Verdun
Dombasle--Total Station, on the N3
Dun-sur-Meuse--Garage Doerr, on the D946, direction Stenay
Montfaucon--Boulangerie Jean Luc Leclerc, 34, rue Ramymond Poincaré
Stenay--Intermarché Siloria SA, on the Avenue de Verdun
Stenay--Total gas station
Varennes--Shopi supermarket on the D946, direction Cheppy
A few gas stations are listed above. For a more comprehensive listing of gas stations (anywhere in France), go to http://www.zagaz.com and click on the map on Department #55 (Meuse). This will also allow you to compare gas prices.
Most of my European friends believe that the Cora outside of Verdun offers the best gas prices.
Grocery Store
Montfaucon--There is a SMALL grocery store in town.
Varennes--There is a SMALL grocery store down the street from the Church, on the same side of the road as the Hotel du Grand Monarque.
Varennes--There is a SHOPI (very small supermarket) on the D946, direction Cheppy.