- Five diesel pumps in California have run out of digits. The dispensers are showing $9.999 a gallon, the highest figure their hardware can display, according to a September 10, 2026 post from GasBuddy head of petroleum analysis Patrick De Haan, who cited the fuel-price app's real-time crowdsourced data. As of this writing, no other outlet has independently corroborated the count or identified the stations, and GasBuddy's real-time feed is the sole source. We are not naming stations, cities, or brands because that information is not in the sourcing, and we are not alleging any retailer chose the number on the display.
he $9.999 figure is almost certainly a physical limit rather than a posted rate. The precedent is well known. During the 2008 oil spike, older mechanical pumps installed decades earlier could not show a price above $3.99 a gallon because their displays had a fixed number of digits. Retrofitting or replacing those units cost an estimated $10,000 to $15,000 per pump, a bill many small operators could not absorb. A ceiling at $9.999 today is the same category of constraint with one additional digit of headroom.
Those five displays are the extreme edge of a genuine record. The U.S. Energy Information Administration put California's average diesel price at $7.76 a gallon as of September 9, 55 cents higher than a week earlier and $2.81 higher than a year earlier. AAA's figure for the same date was $7.87.
Nationally, diesel just set a fresh all-time high. The U.S. Energy Information Administration reported an average U.S. retail diesel price of $5.97, up 3.7 cents on the week and $1.97 higher than a year earlier, surpassing the U.S. Energy Information Administration's previous record of $5.81 set in June 2022. AAA showed a record $5.94 on the same date.
The state has produced outlier prints all year. In March 2026, a Chevron (NYSE:CVX) station in the remote desert stop of Fenner was reported charging $9.69 a gallon for regular gasoline. In early May 2026,
