According to Electrek, social media posts last week showed a number of California diesel stations with prices displayed at $9.99 per gallon — the maximum value the pumps could show. The same outlet now reports that more recent pictures depict a different situation: stations that are entirely out of diesel.
The reports are anecdotal, stemming from social media rather than state or industry data. Electrek notes that rumors are swirling about shortages, but the evidence so far consists of these photos and posts. No official confirmation of widespread outages is cited in the article.
For context, the $9.99 display cap means actual prices could be higher, and the apparent shift from maxed-out pricing to empty pumps suggests tightening supply. However, without additional sources, it is unclear how widespread the outages are or how long they might last.