  We develop an air mobility index and use the newly developed Apple's driving
trend index to evaluate the impact of COVID-19 on the crude oil price. We use
quantile regression and stationary and non-stationary extreme value models to
study the impact. We find that both the \textit{air mobility index} and
\textit{driving trend index} significantly influence lower and upper quantiles
as well as the median of the WTI crude oil price. The extreme value model
suggests that an event like COVID-19 may push oil prices to a negative
territory again as the air mobility decreases drastically during such
pandemics.
