Long-term, the price of gas is most driven by the price of its basic component: oil.
And oil prices have been under pressure for several years.
The price of a barrel of oil on Monday was hovering just above $56 in trading on Monday, compared to $76.41 in early October and $95 five years ago.
Most notable has been a surge of new production — in the United States, through fracking; and in Canada, through extraction from shale.
But whether it keeps falling or rebounds is dependent now on decisions made in oil-producing countries, tweeted Tom Kloza, global head of energy analysis for the Oil Price Information Service.
Since demand is fairly steady, if production drops, that would nudge the global price up. On the other hand, an increase in production would mean lower prices.
“Oil is a supply story, not a demand story,” Kloza said.
Among the unanswered questions, how much American sanctions against Iran will cut its contribution to global markets and how much Saudi Arabia and Russia will pull back on production to push prices higher.
Nearly 1.6 million Georgians – and 54 million Americans — are likely to travel this week for the holiday, journeying 50 miles or more, with cars accounting for the vast majority of the movement, according to AAA.
That will be the most travel since 2005, the group said.
"More consumers are planning a trip for Thanksgiving this year thanks to a strong economy and falling gas prices," said Megan Cooper, Georgia-based spokeswoman for AAA.
Which, of course, means more congestion.
According to AAA, the best days to travel will be Thanksgiving Day itself, Friday or Saturday.
Metro Atlanta average price per gallon*
One Week Ago: $2.54
One Month Ago: $2.80
One Year Ago: $2.42
Source: Gas Buddy
Oil Prices, per barrel*
October high: $76.41
Five years ago: $94.84
*Barrel of West Texas Intermediate
Source: Bloomberg News
Atlanta gas, average price per gallon
High during past year: $2.90 (May 2018)
High during past five years: $3.72 (May 2014)
All-time high: $4.11 (August 2008)
Source: Gas Buddy