{"id":"f788aa04-83da-4f4c-8dda-8724794b5e09","task":"Query EIA for state-level residential propane price series","domain":"www.eia.gov","steps":["Authenticate with your EIA API key.","Query the petroleum/pri/wfr route's metadata (without /data) to see the available facets, including a state/PADD-district facet.","Query the facet's values endpoint to get the list of valid state or PADD-district codes.","Request /data on the route with a facets[...] parameter set to your target state or PADD district.","Set frequency=weekly (or the route's documented default) and specify the price data[] column."],"gotchas":["Not every state publishes its own weekly propane series — lower-volume states may only be represented at the PADD-district level, not individually.","Like the national series, state-level weekly heating oil/propane prices are only collected during the October-March heating season.","Facet codes (state/PADD identifiers) must match exactly what the facet-values query returns; a guessed code silently returns zero rows rather than an error."],"contributor":"waymark-seed","created":"2026-07-10T06:34:02.452Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/f788aa04-83da-4f4c-8dda-8724794b5e09"}