{
  "query": {
    "country": "GB",
    "product": "diesel",
    "direction": "imports"
  },
  "status": "ok",
  "price": {
    "currency": "GBP",
    "unit": "per kg",
    "value": 0.949879,
    "measure": "average",
    "median": null,
    "typical_low": 0.598489,
    "typical_high": 1.03207,
    "min": null,
    "max": null
  },
  "sample_size": null,
  "period": {
    "from": "2026-08",
    "to": "2026-08"
  },
  "confidence": "high",
  "price_type": "official_statistic",
  "statistic": {
    "measure": "average",
    "reference_period": "2026-08",
    "note": "Customs value per kilogram at the border, not a shelf price."
  },
  "as_of": "2026-10-23T12:12:39.142Z",
  "source": {
    "id": "gb-hmrc-trade",
    "name": "UK Overseas Trade Statistics (customs value per kilogram)",
    "publisher": "HM Revenue and Customs (HMRC), UK Trade Info",
    "licence": "Open Government Licence v3.0. The UK Trade Info API documentation says: \"All content is available under the Open Government Licence v3.0, except where otherwise stated.\" The OGL v3.0 lets you copy, publish, distribute and adapt the information and use it commercially, provided you acknowledge the source.",
    "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
    "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: HM Revenue and Customs, UK Overseas Trade Statistics, https://www.uktradeinfo.com . Unit values are calculated by ProofPrice from HMRC's published value and net mass; HMRC does not endorse them.",
    "url": "https://www.uktradeinfo.com/api-documentation/"
  },
  "method": "HM Revenue and Customs publishes, for each month, commodity code, partner country and port, the value declared to customs and the net weight. We add up the value and the net weight for gas oil and other medium or heavy petroleum oils, mostly diesel (HS 2710.19) imported over 2026-08 (527 customs lines with a recorded weight) and divide: the figure is a value-weighted average customs value per kilogram. The range is the 10th to 90th percentile of the unit values of the individual lines, each weighted by its kilograms (so it describes where 80% of the weight was priced). It is a customs value, not a shelf price.",
  "method_url": "https://proofprice.com/method",
  "summary": "The UK imported gas oil and other medium or heavy petroleum oils, mostly diesel (HS 2710.19) at an average customs value of £0.95 per kg over 2026-08 (middle 80% of the weight between £0.6 and £1.03 per kg; 1,986,056 tonnes, £1,887 million). Source: HM Revenue and Customs, UK Overseas Trade Statistics (Open Government Licence v3.0). A customs value per kg, not a shelf price.",
  "notice": "Information, not a valuation or offer. Ranges describe past recorded prices. Customs value, not a shelf price: this is the value declared at the UK border per kilogram of net weight, before duty, inland transport and retail margin.",
  "extra": {
    "measure_detail": "customs value per kg (declared value / net mass)",
    "goods": {
      "code": "271019",
      "description": "Gas oil and other medium or heavy petroleum oils, mostly diesel (HS 2710.19)"
    },
    "direction": "imports",
    "customs_lines": 527,
    "value_gbp": 1886513711,
    "net_mass_tonnes": 1986056,
    "top_partners": [
      {
        "partner": "United States",
        "value_gbp": 667399956,
        "net_mass_tonnes": 675826,
        "unit_value_gbp_per_kg": 0.99
      },
      {
        "partner": "Netherlands",
        "value_gbp": 491296060,
        "net_mass_tonnes": 495484,
        "unit_value_gbp_per_kg": 0.99
      },
      {
        "partner": "Belgium",
        "value_gbp": 194017964,
        "net_mass_tonnes": 185259,
        "unit_value_gbp_per_kg": 1.05
      },
      {
        "partner": "Oman",
        "value_gbp": 92790608,
        "net_mass_tonnes": 105148,
        "unit_value_gbp_per_kg": 0.88
      },
      {
        "partner": "Kuwait",
        "value_gbp": 89752613,
        "net_mass_tonnes": 92408,
        "unit_value_gbp_per_kg": 0.97
      }
    ]
  },
  "answer_id": "ans_d3ec0fadddb269f41811",
  "method_version": "1",
  "retrieved_at": "2026-10-23T12:12:39.142Z",
  "evidence": {
    "type": "official_statistic",
    "label": "Customs statistics (declared value divided by net weight)",
    "meaning": "Official trade values and weights declared at the border, divided by us; not a shop or wholesale price."
  },
  "reliability": "official_median_no_count",
  "data_as_of": "2026-08-31",
  "data_age_days": 53,
  "suggestions": [
    "This is one published figure (an average, median, index or listed price) with no record count: use it as a reference point, not as a range of what individuals paid.",
    "For a decision on a specific job or purchase, ask for an itemised quote."
  ]
}