Do Gas Stations Have Underwear?

Shell
BP
Sunoco
Speedway
Circle K
Chevron
Maverik
Phillips 66
QuikTrip
ExxonMobil
no
no
yes
yes
yes
no
yes
no
yes
no

The 10 most popular gas station chains were contacted and asked if they had underwear. The results of the inquiry are as follows. Underwear: Sunoco, Speedway, Circle K, and Maverik are the primary stations that might have underwear.