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  },
  "is_live": false,
  "findings": [
    {
      "kind": "national",
      "title": "Petrol (E10) fell 0.4p",
      "detail": "The equal-station UK average ended the week at 173.9p per litre across 7,987 stations."
    },
    {
      "kind": "national",
      "title": "Diesel (B7) fell 0.6p",
      "detail": "The equal-station UK average ended the week at 198.8p per litre across 8,130 stations."
    },
    {
      "kind": "retailer",
      "title": "Costco had the lowest retailer petrol average",
      "detail": "Its measured average was 165.8p per litre across 22 stations."
    },
    {
      "kind": "area",
      "title": "KW postcode area was the fastest-rising petrol area",
      "detail": "The postcode-area average increased 1.0p to 173.4p per litre."
    },
    {
      "kind": "motorway",
      "title": "Motorway petrol carried a 20.0p premium",
      "detail": "That is about \u00a311.00 on a 55-litre fill compared with non-motorway stations."
    },
    {
      "kind": "supermarket",
      "title": "Supermarket petrol averaged 2.6p less",
      "detail": "The measured gap equates to about \u00a31.43 on a 55-litre fill."
    }
  ],
  "headline": "Petrol fell 0.4p and diesel fell 0.6p in the week to 18 October 2026",
  "week_start": "2026-10-12",
  "area_movers": {
    "diesel": {
      "rising": [
        {
          "key": "KW",
          "label": "KW postcode area",
          "change_7d": 0.9,
          "current_avg": 198.4,
          "previous_avg": 197.5,
          "station_count": 27,
          "comparison_station_count": 27
        },
        {
          "key": "HG",
          "label": "HG postcode area",
          "change_7d": 0.5,
          "current_avg": 197.4,
          "previous_avg": 196.9,
          "station_count": 20,
          "comparison_station_count": 20
        },
        {
          "key": "PA",
          "label": "PA postcode area",
          "change_7d": 0.1,
          "current_avg": 201.0,
          "previous_avg": 200.7,
          "station_count": 58,
          "comparison_station_count": 57
        }
      ],
      "falling": [
        {
          "key": "ML",
          "label": "ML postcode area",
          "change_7d": -1.1,
          "current_avg": 199.7,
          "previous_avg": 200.8,
          "station_count": 60,
          "comparison_station_count": 60
        },
        {
          "key": "BN",
          "label": "BN postcode area",
          "change_7d": -1.1,
          "current_avg": 198.6,
          "previous_avg": 199.7,
          "station_count": 78,
          "comparison_station_count": 78
        },
        {
          "key": "DA",
          "label": "DA postcode area",
          "change_7d": -1.1,
          "current_avg": 200.2,
          "previous_avg": 201.3,
          "station_count": 40,
          "comparison_station_count": 40
        },
        {
          "key": "KA",
          "label": "KA postcode area",
          "change_7d": -1.1,
          "current_avg": 197.4,
          "previous_avg": 198.4,
          "station_count": 57,
          "comparison_station_count": 55
        },
        {
          "key": "TW",
          "label": "TW postcode area",
          "change_7d": -1.1,
          "current_avg": 200.7,
          "previous_avg": 201.8,
          "station_count": 49,
          "comparison_station_count": 49
        }
      ]
    },
    "petrol": {
      "rising": [
        {
          "key": "KW",
          "label": "KW postcode area",
          "change_7d": 1.0,
          "current_avg": 173.4,
          "previous_avg": 172.4,
          "station_count": 19,
          "comparison_station_count": 19
        },
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 1.0,
          "current_avg": 174.7,
          "previous_avg": 173.7,
          "station_count": 11,
          "comparison_station_count": 11
        },
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 0.8,
          "current_avg": 176.2,
          "previous_avg": 175.4,
          "station_count": 13,
          "comparison_station_count": 13
        },
        {
          "key": "HR",
          "label": "HR postcode area",
          "change_7d": 0.3,
          "current_avg": 173.6,
          "previous_avg": 173.4,
          "station_count": 35,
          "comparison_station_count": 34
        },
        {
          "key": "IV",
          "label": "IV postcode area",
          "change_7d": 0.2,
          "current_avg": 177.2,
          "previous_avg": 177.0,
          "station_count": 63,
          "comparison_station_count": 63
        }
      ],
      "falling": [
        {
          "key": "SR",
          "label": "SR postcode area",
          "change_7d": -1.8,
          "current_avg": 171.5,
          "previous_avg": 173.3,
          "station_count": 26,
          "comparison_station_count": 26
        },
        {
          "key": "ML",
          "label": "ML postcode area",
          "change_7d": -1.7,
          "current_avg": 175.0,
          "previous_avg": 176.7,
          "station_count": 61,
          "comparison_station_count": 61
        },
        {
          "key": "DG",
          "label": "DG postcode area",
          "change_7d": -1.5,
          "current_avg": 171.1,
          "previous_avg": 172.6,
          "station_count": 38,
          "comparison_station_count": 38
        },
        {
          "key": "TS",
          "label": "TS postcode area",
          "change_7d": -1.1,
          "current_avg": 172.3,
          "previous_avg": 173.4,
          "station_count": 64,
          "comparison_station_count": 64
        },
        {
          "key": "EN",
          "label": "EN postcode area",
          "change_7d": -1.1,
          "current_avg": 173.3,
          "previous_avg": 174.4,
          "station_count": 38,
          "comparison_station_count": 38
        }
      ]
    },
    "premium_diesel": {
      "rising": [
        {
          "key": "HG",
          "label": "HG postcode area",
          "change_7d": 1.4,
          "current_avg": 208.9,
          "previous_avg": 207.5,
          "station_count": 8,
          "comparison_station_count": 8
        },
        {
          "key": "WA",
          "label": "WA postcode area",
          "change_7d": 0.9,
          "current_avg": 218.6,
          "previous_avg": 217.7,
          "station_count": 38,
          "comparison_station_count": 38
        },
        {
          "key": "TR",
          "label": "TR postcode area",
          "change_7d": 0.8,
          "current_avg": 219.4,
          "previous_avg": 218.6,
          "station_count": 18,
          "comparison_station_count": 18
        },
        {
          "key": "LA",
          "label": "LA postcode area",
          "change_7d": 0.7,
          "current_avg": 217.8,
          "previous_avg": 217.1,
          "station_count": 30,
          "comparison_station_count": 30
        },
        {
          "key": "NW",
          "label": "NW postcode area",
          "change_7d": 0.6,
          "current_avg": 219.5,
          "previous_avg": 218.9,
          "station_count": 21,
          "comparison_station_count": 21
        }
      ],
      "falling": [
        {
          "key": "BT",
          "label": "BT postcode area",
          "change_7d": -1.3,
          "current_avg": 196.5,
          "previous_avg": 197.8,
          "station_count": 126,
          "comparison_station_count": 126
        },
        {
          "key": "BL",
          "label": "BL postcode area",
          "change_7d": -0.7,
          "current_avg": 217.1,
          "previous_avg": 217.8,
          "station_count": 34,
          "comparison_station_count": 34
        },
        {
          "key": "DD",
          "label": "DD postcode area",
          "change_7d": -0.6,
          "current_avg": 212.0,
          "previous_avg": 212.6,
          "station_count": 12,
          "comparison_station_count": 12
        },
        {
          "key": "ML",
          "label": "ML postcode area",
          "change_7d": -0.5,
          "current_avg": 214.2,
          "previous_avg": 214.7,
          "station_count": 34,
          "comparison_station_count": 34
        },
        {
          "key": "BN",
          "label": "BN postcode area",
          "change_7d": -0.5,
          "current_avg": 216.9,
          "previous_avg": 217.4,
          "station_count": 48,
          "comparison_station_count": 48
        }
      ]
    },
    "premium_petrol": {
      "rising": [
        {
          "key": "KW",
          "label": "KW postcode area",
          "change_7d": 4.6,
          "current_avg": 180.8,
          "previous_avg": 176.2,
          "station_count": 13,
          "comparison_station_count": 13
        },
        {
          "key": "HX",
          "label": "HX postcode area",
          "change_7d": 1.5,
          "current_avg": 193.3,
          "previous_avg": 191.8,
          "station_count": 17,
          "comparison_station_count": 17
        },
        {
          "key": "HG",
          "label": "HG postcode area",
          "change_7d": 0.8,
          "current_avg": 190.1,
          "previous_avg": 189.3,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 0.6,
          "current_avg": 172.9,
          "previous_avg": 172.3,
          "station_count": 8,
          "comparison_station_count": 8
        },
        {
          "key": "WF",
          "label": "WF postcode area",
          "change_7d": 0.5,
          "current_avg": 189.1,
          "previous_avg": 188.6,
          "station_count": 67,
          "comparison_station_count": 67
        }
      ],
      "falling": [
        {
          "key": "ML",
          "label": "ML postcode area",
          "change_7d": -0.8,
          "current_avg": 193.7,
          "previous_avg": 194.5,
          "station_count": 47,
          "comparison_station_count": 47
        },
        {
          "key": "FY",
          "label": "FY postcode area",
          "change_7d": -0.7,
          "current_avg": 190.5,
          "previous_avg": 191.2,
          "station_count": 21,
          "comparison_station_count": 21
        },
        {
          "key": "BA",
          "label": "BA postcode area",
          "change_7d": -0.7,
          "current_avg": 192.1,
          "previous_avg": 192.8,
          "station_count": 48,
          "comparison_station_count": 48
        },
        {
          "key": "TQ",
          "label": "TQ postcode area",
          "change_7d": -0.7,
          "current_avg": 187.9,
          "previous_avg": 188.6,
          "station_count": 33,
          "comparison_station_count": 33
        },
        {
          "key": "EN",
          "label": "EN postcode area",
          "change_7d": -0.7,
          "current_avg": 192.5,
          "previous_avg": 193.2,
          "station_count": 36,
          "comparison_station_count": 36
        }
      ]
    }
  },
  "methodology": {
    "cohort": "A station/fuel enters from its first recorded price event; current active status is not projected backwards.",
    "price_bounds": "Values outside 50p to 300p per litre are excluded.",
    "carry_forward": "A station's last reported price is carried forward until it changes.",
    "area_definition": "Local movers use the alphabetic UK postcode area.",
    "station_weighting": "Each station contributes one equal-weight end-of-day price.",
    "classification_limitation": "Brand, postcode area, and motorway labels use the station's current classification because dated dimension history is not yet stored."
  },
  "week_ending": "2026-10-18",
  "generated_at": "2026-10-19T07:31:28.152501+00:00",
  "motorway_premium": {
    "diesel": {
      "premium": 18.2,
      "other_avg": 198.5,
      "motorway_avg": 216.7,
      "tank_premium_gbp": 10.01,
      "motorway_station_count": 136,
      "comparison_station_count": 7994
    },
    "petrol": {
      "premium": 20.0,
      "other_avg": 173.5,
      "motorway_avg": 193.5,
      "tank_premium_gbp": 11.0,
      "motorway_station_count": 136,
      "comparison_station_count": 7851
    },
    "premium_diesel": {
      "premium": 15.6,
      "other_avg": 216.5,
      "motorway_avg": 232.1,
      "tank_premium_gbp": 8.58,
      "motorway_station_count": 132,
      "comparison_station_count": 4159
    },
    "premium_petrol": {
      "premium": 21.1,
      "other_avg": 190.9,
      "motorway_avg": 212.0,
      "tank_premium_gbp": 11.61,
      "motorway_station_count": 132,
      "comparison_station_count": 6230
    }
  },
  "retailer_rankings": {
    "diesel": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": -1.0,
        "current_avg": 190.1,
        "previous_avg": 191.1,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": -2.2,
        "current_avg": 190.6,
        "previous_avg": 192.8,
        "station_count": 95,
        "comparison_station_count": 95
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": -0.5,
        "current_avg": 191.0,
        "previous_avg": 191.5,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": -2.0,
        "current_avg": 191.1,
        "previous_avg": 193.1,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": -0.1,
        "current_avg": 191.2,
        "previous_avg": 191.1,
        "station_count": 48,
        "comparison_station_count": 47
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 0.5,
        "current_avg": 193.3,
        "previous_avg": 192.8,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": -0.7,
        "current_avg": 196.3,
        "previous_avg": 197.0,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": -0.9,
        "current_avg": 196.6,
        "previous_avg": 197.5,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": -0.7,
        "current_avg": 196.7,
        "previous_avg": 197.4,
        "station_count": 404,
        "comparison_station_count": 404
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": -1.2,
        "current_avg": 197.0,
        "previous_avg": 198.2,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": -0.7,
        "current_avg": 197.3,
        "previous_avg": 198.0,
        "station_count": 50,
        "comparison_station_count": 49
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": -0.5,
        "current_avg": 197.6,
        "previous_avg": 198.1,
        "station_count": 493,
        "comparison_station_count": 493
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": -0.3,
        "current_avg": 197.9,
        "previous_avg": 198.2,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": -0.5,
        "current_avg": 198.0,
        "previous_avg": 198.5,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": -0.7,
        "current_avg": 198.3,
        "previous_avg": 199.0,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": -0.3,
        "current_avg": 198.3,
        "previous_avg": 198.6,
        "station_count": 26,
        "comparison_station_count": 26
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": -0.3,
        "current_avg": 198.5,
        "previous_avg": 198.8,
        "station_count": 174,
        "comparison_station_count": 173
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": -0.8,
        "current_avg": 198.6,
        "previous_avg": 199.4,
        "station_count": 51,
        "comparison_station_count": 51
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": -0.4,
        "current_avg": 199.0,
        "previous_avg": 199.4,
        "station_count": 158,
        "comparison_station_count": 158
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": -0.4,
        "current_avg": 199.0,
        "previous_avg": 199.4,
        "station_count": 190,
        "comparison_station_count": 190
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": -0.4,
        "current_avg": 199.2,
        "previous_avg": 199.6,
        "station_count": 307,
        "comparison_station_count": 306
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": -0.8,
        "current_avg": 200.1,
        "previous_avg": 200.9,
        "station_count": 1460,
        "comparison_station_count": 1460
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 1.0,
        "current_avg": 200.6,
        "previous_avg": 199.6,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": -0.5,
        "current_avg": 201.3,
        "previous_avg": 201.8,
        "station_count": 1101,
        "comparison_station_count": 1101
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": -0.4,
        "current_avg": 201.5,
        "previous_avg": 201.9,
        "station_count": 912,
        "comparison_station_count": 912
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": -1.8,
        "current_avg": 202.1,
        "previous_avg": 203.9,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": -0.1,
        "current_avg": 202.4,
        "previous_avg": 202.5,
        "station_count": 28,
        "comparison_station_count": 28
      }
    ],
    "petrol": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": -0.8,
        "current_avg": 165.8,
        "previous_avg": 166.6,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": -0.4,
        "current_avg": 165.9,
        "previous_avg": 166.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": -0.2,
        "current_avg": 166.5,
        "previous_avg": 166.7,
        "station_count": 93,
        "comparison_station_count": 93
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": -2.2,
        "current_avg": 166.7,
        "previous_avg": 168.9,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 0.0,
        "current_avg": 167.1,
        "previous_avg": 167.1,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 0.5,
        "current_avg": 167.4,
        "previous_avg": 166.8,
        "station_count": 49,
        "comparison_station_count": 48
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": -1.0,
        "current_avg": 171.5,
        "previous_avg": 172.5,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": -1.2,
        "current_avg": 171.7,
        "previous_avg": 172.9,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": -1.0,
        "current_avg": 172.0,
        "previous_avg": 173.0,
        "station_count": 404,
        "comparison_station_count": 404
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": -0.3,
        "current_avg": 172.0,
        "previous_avg": 172.3,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": -1.1,
        "current_avg": 172.1,
        "previous_avg": 173.2,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": -0.2,
        "current_avg": 172.5,
        "previous_avg": 172.7,
        "station_count": 498,
        "comparison_station_count": 498
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": -0.4,
        "current_avg": 172.8,
        "previous_avg": 173.2,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": -0.3,
        "current_avg": 172.8,
        "previous_avg": 173.1,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": -0.2,
        "current_avg": 173.0,
        "previous_avg": 173.2,
        "station_count": 50,
        "comparison_station_count": 50
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": -0.1,
        "current_avg": 173.2,
        "previous_avg": 173.3,
        "station_count": 190,
        "comparison_station_count": 190
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.1,
        "current_avg": 173.4,
        "previous_avg": 173.3,
        "station_count": 175,
        "comparison_station_count": 174
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": -0.5,
        "current_avg": 173.6,
        "previous_avg": 174.1,
        "station_count": 158,
        "comparison_station_count": 158
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 0.0,
        "current_avg": 173.7,
        "previous_avg": 173.7,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": -0.3,
        "current_avg": 174.0,
        "previous_avg": 174.3,
        "station_count": 306,
        "comparison_station_count": 305
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": -0.3,
        "current_avg": 174.4,
        "previous_avg": 174.7,
        "station_count": 46,
        "comparison_station_count": 46
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 1.0,
        "current_avg": 174.8,
        "previous_avg": 173.8,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": -0.3,
        "current_avg": 175.0,
        "previous_avg": 175.3,
        "station_count": 1464,
        "comparison_station_count": 1464
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": -0.4,
        "current_avg": 176.3,
        "previous_avg": 176.7,
        "station_count": 1105,
        "comparison_station_count": 1105
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": -1.2,
        "current_avg": 176.8,
        "previous_avg": 178.0,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": -0.3,
        "current_avg": 176.8,
        "previous_avg": 177.1,
        "station_count": 914,
        "comparison_station_count": 914
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": -0.1,
        "current_avg": 178.1,
        "previous_avg": 178.2,
        "station_count": 28,
        "comparison_station_count": 28
      }
    ],
    "premium_diesel": [
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": -2.6,
        "current_avg": 193.9,
        "previous_avg": 196.5,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": -0.5,
        "current_avg": 194.4,
        "previous_avg": 194.9,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.1,
        "current_avg": 198.8,
        "previous_avg": 198.2,
        "station_count": 11,
        "comparison_station_count": 10
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": -3.2,
        "current_avg": 205.7,
        "previous_avg": 208.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": -1.2,
        "current_avg": 206.4,
        "previous_avg": 207.6,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": -0.3,
        "current_avg": 210.0,
        "previous_avg": 210.3,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": -0.2,
        "current_avg": 210.5,
        "previous_avg": 210.7,
        "station_count": 283,
        "comparison_station_count": 283
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": -0.2,
        "current_avg": 211.7,
        "previous_avg": 211.9,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": -0.1,
        "current_avg": 212.1,
        "previous_avg": 212.2,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 0.3,
        "current_avg": 212.4,
        "previous_avg": 212.1,
        "station_count": 52,
        "comparison_station_count": 52
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": -0.1,
        "current_avg": 212.6,
        "previous_avg": 212.7,
        "station_count": 164,
        "comparison_station_count": 164
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 0.0,
        "current_avg": 212.6,
        "previous_avg": 212.6,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Valero",
        "label": "Valero",
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        "current_avg": 215.3,
        "previous_avg": 215.1,
        "station_count": 150,
        "comparison_station_count": 150
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": -0.3,
        "current_avg": 217.5,
        "previous_avg": 217.8,
        "station_count": 1171,
        "comparison_station_count": 1171
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": -0.7,
        "current_avg": 217.9,
        "previous_avg": 218.6,
        "station_count": 83,
        "comparison_station_count": 83
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": -0.2,
        "current_avg": 219.5,
        "previous_avg": 219.7,
        "station_count": 1010,
        "comparison_station_count": 1010
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 0.6,
        "current_avg": 223.4,
        "previous_avg": 222.8,
        "station_count": 866,
        "comparison_station_count": 866
      }
    ],
    "premium_petrol": [
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 0.7,
        "current_avg": 174.3,
        "previous_avg": 173.0,
        "station_count": 16,
        "comparison_station_count": 14
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": -0.3,
        "current_avg": 175.0,
        "previous_avg": 175.3,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": -0.5,
        "current_avg": 176.3,
        "previous_avg": 176.8,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": -0.8,
        "current_avg": 178.3,
        "previous_avg": 179.1,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.0,
        "current_avg": 178.9,
        "previous_avg": 178.9,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.1,
        "current_avg": 182.1,
        "previous_avg": 181.9,
        "station_count": 25,
        "comparison_station_count": 24
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": -1.1,
        "current_avg": 182.5,
        "previous_avg": 183.6,
        "station_count": 464,
        "comparison_station_count": 464
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": -1.1,
        "current_avg": 183.5,
        "previous_avg": 184.6,
        "station_count": 292,
        "comparison_station_count": 292
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": -0.3,
        "current_avg": 184.6,
        "previous_avg": 184.9,
        "station_count": 19,
        "comparison_station_count": 19
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": -3.7,
        "current_avg": 185.8,
        "previous_avg": 189.5,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 0.4,
        "current_avg": 186.3,
        "previous_avg": 185.9,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": -0.2,
        "current_avg": 188.2,
        "previous_avg": 188.4,
        "station_count": 163,
        "comparison_station_count": 162
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 0.0,
        "current_avg": 188.4,
        "previous_avg": 188.4,
        "station_count": 383,
        "comparison_station_count": 383
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.0,
        "current_avg": 188.6,
        "previous_avg": 188.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": -0.1,
        "current_avg": 188.8,
        "previous_avg": 188.9,
        "station_count": 83,
        "comparison_station_count": 82
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 0.3,
        "current_avg": 189.3,
        "previous_avg": 189.0,
        "station_count": 77,
        "comparison_station_count": 77
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 0.0,
        "current_avg": 189.3,
        "previous_avg": 189.3,
        "station_count": 246,
        "comparison_station_count": 246
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.0,
        "current_avg": 190.8,
        "previous_avg": 190.8,
        "station_count": 339,
        "comparison_station_count": 339
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 0.0,
        "current_avg": 191.3,
        "previous_avg": 191.3,
        "station_count": 159,
        "comparison_station_count": 159
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": -0.2,
        "current_avg": 193.3,
        "previous_avg": 193.5,
        "station_count": 139,
        "comparison_station_count": 139
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": -0.2,
        "current_avg": 193.7,
        "previous_avg": 193.9,
        "station_count": 1364,
        "comparison_station_count": 1364
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": -0.2,
        "current_avg": 195.2,
        "previous_avg": 195.4,
        "station_count": 1053,
        "comparison_station_count": 1053
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 0.0,
        "current_avg": 195.7,
        "previous_avg": 195.7,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 0.6,
        "current_avg": 199.7,
        "previous_avg": 199.1,
        "station_count": 907,
        "comparison_station_count": 907
      }
    ]
  },
  "source_updated_at": "2026-10-18T22:53:28+00:00",
  "methodology_version": "1.0-historical",
  "active_station_count": 8075,
  "supermarket_comparison": {
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      "saving": 2.8,
      "other_avg": 199.4,
      "supermarket_avg": 196.6,
      "tank_saving_gbp": 1.54,
      "comparison_station_count": 6512,
      "supermarket_station_count": 1618
    },
    "petrol": {
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      "other_avg": 174.4,
      "supermarket_avg": 171.8,
      "tank_saving_gbp": 1.43,
      "comparison_station_count": 6369,
      "supermarket_station_count": 1618
    },
    "premium_diesel": {
      "saving": 8.6,
      "other_avg": 217.3,
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      "tank_saving_gbp": 4.73,
      "comparison_station_count": 4142,
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    },
    "premium_petrol": {
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      "supermarket_avg": 185.5,
      "tank_saving_gbp": 3.96,
      "comparison_station_count": 5154,
      "supermarket_station_count": 1208
    }
  },
  "historical_station_universe_count": 8255
}