# California Diesel · Range Position Index

- Series code: `retail.state_ca.diesel_all.weekly.rpi`
- Units: index · frequency: weekly
- Latest: **98.3 index** (2026-09-28)
- History: 1995-07-03 to 2026-09-28, 1631 observations
- Change over 1 week: -1.7 (-1.7%)
- Change over 1 month: +14.5 (+17.3%)
- Change over 1 year: +50.7 (+106.5%)
- Change over 5 years: -1.7 (-1.7%)
- 52-week range: 33.0 (2026-02-16) – 100.0 (2026-03-30)
- Latest value is higher than 92% of the full history

## Recent observations

| Date | Value |
|---|---|
| 2026-09-28 | 98.3 |
| 2026-09-21 | 100.0 |
| 2026-09-14 | 100.0 |
| 2026-09-07 | 100.0 |
| 2026-08-31 | 89.3 |
| 2026-08-24 | 83.8 |
| 2026-08-17 | 76.1 |
| 2026-08-10 | 71.1 |
| 2026-08-03 | 74.1 |
| 2026-07-27 | 72.7 |
| 2026-07-20 | 66.7 |
| 2026-07-13 | 57.2 |

Source: Calculated by NewTide from EIA source data. Derived from public-domain EIA data.
Page: https://thinkingonenergy.com/data/retail.state_ca.diesel_all.weekly.rpi/