The three native tribes in the region (Seneca Nation, Tonawanda Band and Tuscarora) also have a large influence in the convenience store sector. The tribes have long maintained that they are exempt from state excise taxes on gasoline and tobacco products, which allows native-owned convenience stores to provide lower prices than their non-native counterparts. Gasoline tax advantages were most pronounced in the 1990s, when low overall gas prices made the tax advantage far more noticeable. In the 1990s and 2000s, a mail-order tobacco industry thrived on Seneca reservations, an industry that has mostly been cut off since then. Increasing regulations now prohibit Senecas from receiving or selling name-brand cigarettes without taxes, sending tobacco products by mail (Prevent All Cigarette Trafficking Act) or private delivery, or accepting credit cards for remote purchases; the Senecas still sell native-produced tobacco products in brick-and-mortar stores on the reservations. Large tobacco farms can be seen in much of the Cattaraugus Reservation to meet the demand for native-grown, tax-exempt tobacco.