tankering
n.— «Airports that typically have 10 days of fuel on hand are down to three days’ worth and carriers, including Northwest, are resorting to flying extra fuel around the country on passenger flights to make sure they have adequate supplies. “Tankering” as the practice is known, also helps avoid having to buy fuel in areas with higher prices.» —“Fuel costs hit teetering carrier” by Tim Huber Pioneer Press (St. Paul, Minn.) Sept. 1, 2005. (source: Double-Tongued Dictionary)