Gas prices are highly volatile. That’s not just because drivers have few other choices, but also because so many events affect them. Before you can get into the nitty-gritty of predicting tomorrow’s gas prices, you need to be aware of the seven underlying factors that contribute to the price you pay at the pump. They will help you predict both seasonal changes and sudden spikes in gas prices. Each month, the EIA updates its Short-Term Energy Outlook. It reports on current oil and gas prices. It also tells you if any of the seven contributing trends are currently affecting prices. It also forecasts average prices for the next year. There is a wealth of data on the EIA’s website, including historical gas prices, so you can drill down to look at trends.

Seasonality

Gas prices typically rise in the spring and summer and drop in the fall and winter. Demand for gas increases during the summer as more American families go on road trips. It’s also because gas formulations include a variety of additives to prevent vaporization during warmer summer weather. Refineries start gearing up for summer gas production in the spring. They close for needed maintenance. They also switch over their processes to meet higher vaporization standards. Although shut-downs are publicized in advance, gas prices can rise if too much supply is cut off. Prices usually drop in the fall as demand drops.

Natural Disasters

Gas prices rise after hurricanes or other natural disasters. That’s because most refineries border the Gulf of Mexico. If they get damaged, gas distribution becomes compromised. Right after Hurricane Katrina, gas prices spiked to more than $4.00 per gallon, adjusted for inflation. As pandemic restrictions took effect, demand for oil fell in the first quarter of 2020. A drop in demand was worsened by a supply glut, even though producers cut back on production. By April 20, 2020, the spot price for a barrel of oil had fallen to -$36.98. Traders were willing to pay someone else to take delivery of the oil since they couldn’t store it.

Supply Threats

Major threats to the world’s oil supply can drive up the prices of both oil and gas. Another example of a threat to global supply occurred in 2012, when Iran threatened to close the Straits of Hormuz. Through this strategic chokepoint flows 21% of the world’s oil. Israel and the United States rattled their sabers in response, driving gas prices to $3.99 per gallon by April.

Speculation

Commodities traders can create a price bubble through sheer speculation. This happened during the 2008 financial crisis. When the stock market crashed, traders turned to oil futures to make money. Even though demand was falling, and supply was rising. On July 3, 2008, domestic oil prices rose to a record of $145.31 a barrel. It soon sent gas prices to $4.16 per gallon.

Regional Variations

Gas prices vary regionally depending on state taxes and regional formulations. For example, California prices are usually the highest, thanks to special formulations and taxes at $0.79 per gallon. When there is a shortage in one area, it’s difficult to use gas from another region because there are different formulations. That’s one reason a supply shortage in California drove prices to $4.66 per gallon on October 6, 2012, while the average U.S. price was a dollar lower.

The US Dollar’s Value

The value of the dollar can affect oil and gas prices. Oil contracts are priced only in dollars. As the value of the dollar rises, the price of oil often falls. Oil-importing countries profit from the rising dollar value, so they don’t need to charge as much for oil. That was the case between 2014 and 2016, when the dollar started getting stronger, and global oil prices fell.

Peak Oil

Last and also least is the trend that one day the world will run out of oil. That’s such a long-term trend that it isn’t a factor in any price changes so far. There are still plenty of reserves in Saudi Arabia, the primary source of today’s oil.

Gasoline and Oil Futures Contracts

To get a closer look at future gas prices, go to the commodities markets. There, traders bid on gas delivery for the next month. That’s called a “futures contract,” and it’s an agreement between a buyer who will use the gas and a seller. The buyer can be a gas distribution company, a transportation company, or a large corporation. The seller is usually a refinery. They buy now, hoping that the actual price will rise so they can sell the contract at a profit. These traders are responsible for a lot of the volatility in gas prices. They anticipate and then exaggerate actual supply and demand trends. The commodity is called the “New York Harbor RBOB Gasoline futures contract.” The daily charts show what traders are bidding and closing on contracts for each month in the future. There is more volume for delivery dates closer to the present, so these prices are more reliable. Because so many things can change to affect the price of oil and gas, these charts change daily. Another indicator of tomorrow’s gas prices is the future contracts price for Brent Crude Oil Futures. For the most part, gas price futures contracts will follow oil price contracts. Occasionally oil prices will be low, but gas prices spike due to distribution failures from natural disasters or seasonal plant shutdowns. Look at both charts to get confirmation, and to understand what is happening to affect gas prices. Armed with this knowledge, you will able to predict tomorrow’s gas prices today.