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  "is_live": false,
  "findings": [
    {
      "kind": "national",
      "title": "Petrol (E10) rose 3.2p",
      "detail": "The equal-station UK average ended the week at 164.8p per litre across 7,927 stations."
    },
    {
      "kind": "national",
      "title": "Diesel (B7) rose 3.0p",
      "detail": "The equal-station UK average ended the week at 186.4p per litre across 8,049 stations."
    },
    {
      "kind": "retailer",
      "title": "Costco had the lowest retailer petrol average",
      "detail": "Its measured average was 156.1p per litre across 22 stations."
    },
    {
      "kind": "area",
      "title": "CR postcode area was the fastest-rising petrol area",
      "detail": "The postcode-area average increased 5.3p to 166.6p per litre."
    },
    {
      "kind": "motorway",
      "title": "Motorway petrol carried a 21.5p premium",
      "detail": "That is about \u00a311.82 on a 55-litre fill compared with non-motorway stations."
    },
    {
      "kind": "supermarket",
      "title": "Supermarket petrol averaged 3.0p less",
      "detail": "The measured gap equates to about \u00a31.65 on a 55-litre fill."
    }
  ],
  "headline": "Petrol rose 3.2p and diesel rose 3.0p in the week to 6 September 2026",
  "week_start": "2026-08-31",
  "area_movers": {
    "diesel": {
      "rising": [
        {
          "key": "DD",
          "label": "DD postcode area",
          "change_7d": 5.0,
          "current_avg": 187.0,
          "previous_avg": 182.0,
          "station_count": 30,
          "comparison_station_count": 30
        },
        {
          "key": "TW",
          "label": "TW postcode area",
          "change_7d": 4.1,
          "current_avg": 189.0,
          "previous_avg": 185.1,
          "station_count": 49,
          "comparison_station_count": 48
        },
        {
          "key": "UB",
          "label": "UB postcode area",
          "change_7d": 4.1,
          "current_avg": 190.7,
          "previous_avg": 186.6,
          "station_count": 35,
          "comparison_station_count": 35
        },
        {
          "key": "BH",
          "label": "BH postcode area",
          "change_7d": 4.0,
          "current_avg": 190.3,
          "previous_avg": 186.3,
          "station_count": 61,
          "comparison_station_count": 61
        },
        {
          "key": "BL",
          "label": "BL postcode area",
          "change_7d": 4.0,
          "current_avg": 186.2,
          "previous_avg": 182.2,
          "station_count": 44,
          "comparison_station_count": 44
        }
      ],
      "falling": [
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": -1.7,
          "current_avg": 191.5,
          "previous_avg": 193.2,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": -1.4,
          "current_avg": 183.4,
          "previous_avg": 184.8,
          "station_count": 17,
          "comparison_station_count": 17
        }
      ]
    },
    "petrol": {
      "rising": [
        {
          "key": "CR",
          "label": "CR postcode area",
          "change_7d": 5.3,
          "current_avg": 166.6,
          "previous_avg": 161.3,
          "station_count": 33,
          "comparison_station_count": 33
        },
        {
          "key": "BH",
          "label": "BH postcode area",
          "change_7d": 4.6,
          "current_avg": 168.7,
          "previous_avg": 164.1,
          "station_count": 62,
          "comparison_station_count": 62
        },
        {
          "key": "DD",
          "label": "DD postcode area",
          "change_7d": 4.6,
          "current_avg": 165.0,
          "previous_avg": 160.4,
          "station_count": 29,
          "comparison_station_count": 29
        },
        {
          "key": "SK",
          "label": "SK postcode area",
          "change_7d": 4.5,
          "current_avg": 167.0,
          "previous_avg": 162.5,
          "station_count": 64,
          "comparison_station_count": 64
        },
        {
          "key": "TW",
          "label": "TW postcode area",
          "change_7d": 4.5,
          "current_avg": 168.0,
          "previous_avg": 163.5,
          "station_count": 49,
          "comparison_station_count": 49
        }
      ],
      "falling": []
    },
    "premium_diesel": {
      "rising": [
        {
          "key": "DD",
          "label": "DD postcode area",
          "change_7d": 4.6,
          "current_avg": 204.8,
          "previous_avg": 200.2,
          "station_count": 12,
          "comparison_station_count": 12
        },
        {
          "key": "DA",
          "label": "DA postcode area",
          "change_7d": 4.4,
          "current_avg": 207.2,
          "previous_avg": 202.8,
          "station_count": 22,
          "comparison_station_count": 22
        },
        {
          "key": "CA",
          "label": "CA postcode area",
          "change_7d": 4.1,
          "current_avg": 205.1,
          "previous_avg": 201.0,
          "station_count": 40,
          "comparison_station_count": 40
        },
        {
          "key": "TR",
          "label": "TR postcode area",
          "change_7d": 4.0,
          "current_avg": 206.3,
          "previous_avg": 202.3,
          "station_count": 18,
          "comparison_station_count": 18
        },
        {
          "key": "TF",
          "label": "TF postcode area",
          "change_7d": 3.6,
          "current_avg": 206.9,
          "previous_avg": 203.3,
          "station_count": 16,
          "comparison_station_count": 16
        }
      ],
      "falling": []
    },
    "premium_petrol": {
      "rising": [
        {
          "key": "BR",
          "label": "BR postcode area",
          "change_7d": 4.9,
          "current_avg": 187.6,
          "previous_avg": 182.7,
          "station_count": 27,
          "comparison_station_count": 27
        },
        {
          "key": "CR",
          "label": "CR postcode area",
          "change_7d": 3.9,
          "current_avg": 184.0,
          "previous_avg": 180.1,
          "station_count": 32,
          "comparison_station_count": 32
        },
        {
          "key": "KT",
          "label": "KT postcode area",
          "change_7d": 3.9,
          "current_avg": 186.8,
          "previous_avg": 182.9,
          "station_count": 54,
          "comparison_station_count": 54
        },
        {
          "key": "WN",
          "label": "WN postcode area",
          "change_7d": 3.9,
          "current_avg": 181.2,
          "previous_avg": 177.3,
          "station_count": 23,
          "comparison_station_count": 23
        },
        {
          "key": "DD",
          "label": "DD postcode area",
          "change_7d": 3.8,
          "current_avg": 183.1,
          "previous_avg": 179.3,
          "station_count": 23,
          "comparison_station_count": 23
        }
      ],
      "falling": []
    }
  },
  "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": "2026-09-06",
  "generated_at": "2026-09-07T07:31:09.597167+00:00",
  "motorway_premium": {
    "diesel": {
      "premium": 18.7,
      "other_avg": 186.1,
      "motorway_avg": 204.8,
      "tank_premium_gbp": 10.29,
      "motorway_station_count": 136,
      "comparison_station_count": 7913
    },
    "petrol": {
      "premium": 21.5,
      "other_avg": 164.5,
      "motorway_avg": 186.0,
      "tank_premium_gbp": 11.82,
      "motorway_station_count": 136,
      "comparison_station_count": 7791
    },
    "premium_diesel": {
      "premium": 17.7,
      "other_avg": 203.1,
      "motorway_avg": 220.8,
      "tank_premium_gbp": 9.73,
      "motorway_station_count": 132,
      "comparison_station_count": 4133
    },
    "premium_petrol": {
      "premium": 23.7,
      "other_avg": 180.7,
      "motorway_avg": 204.4,
      "tank_premium_gbp": 13.04,
      "motorway_station_count": 132,
      "comparison_station_count": 6188
    }
  },
  "retailer_rankings": {
    "diesel": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 2.6,
        "current_avg": 176.9,
        "previous_avg": 174.3,
        "station_count": 22,
        "comparison_station_count": 21
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.0,
        "current_avg": 178.4,
        "previous_avg": 177.3,
        "station_count": 91,
        "comparison_station_count": 90
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 3.9,
        "current_avg": 179.3,
        "previous_avg": 175.4,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 4.2,
        "current_avg": 179.7,
        "previous_avg": 175.5,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 1.4,
        "current_avg": 180.4,
        "previous_avg": 178.5,
        "station_count": 17,
        "comparison_station_count": 15
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 2.1,
        "current_avg": 180.6,
        "previous_avg": 178.5,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 1.8,
        "current_avg": 181.9,
        "previous_avg": 180.1,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 2.7,
        "current_avg": 182.1,
        "previous_avg": 179.4,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 1.2,
        "current_avg": 182.5,
        "previous_avg": 181.3,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 0.4,
        "current_avg": 182.8,
        "previous_avg": 182.4,
        "station_count": 9,
        "comparison_station_count": 9
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 1.1,
        "current_avg": 183.9,
        "previous_avg": 182.8,
        "station_count": 46,
        "comparison_station_count": 46
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.9,
        "current_avg": 183.9,
        "previous_avg": 183.0,
        "station_count": 167,
        "comparison_station_count": 167
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 4.8,
        "current_avg": 183.9,
        "previous_avg": 179.1,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 1.9,
        "current_avg": 184.5,
        "previous_avg": 182.6,
        "station_count": 311,
        "comparison_station_count": 311
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 4.8,
        "current_avg": 184.8,
        "previous_avg": 180.0,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.7,
        "current_avg": 184.9,
        "previous_avg": 180.2,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.8,
        "current_avg": 184.9,
        "previous_avg": 182.1,
        "station_count": 506,
        "comparison_station_count": 506
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.5,
        "current_avg": 185.5,
        "previous_avg": 184.8,
        "station_count": 50,
        "comparison_station_count": 49
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 1.0,
        "current_avg": 185.6,
        "previous_avg": 184.6,
        "station_count": 297,
        "comparison_station_count": 296
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 3.0,
        "current_avg": 186.0,
        "previous_avg": 183.0,
        "station_count": 46,
        "comparison_station_count": 46
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 3.2,
        "current_avg": 186.4,
        "previous_avg": 183.2,
        "station_count": 165,
        "comparison_station_count": 165
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 3.0,
        "current_avg": 187.3,
        "previous_avg": 184.3,
        "station_count": 1453,
        "comparison_station_count": 1452
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 1.2,
        "current_avg": 187.4,
        "previous_avg": 186.2,
        "station_count": 146,
        "comparison_station_count": 146
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.8,
        "current_avg": 187.6,
        "previous_avg": 186.8,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 2.0,
        "current_avg": 189.2,
        "previous_avg": 187.2,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 3.1,
        "current_avg": 189.3,
        "previous_avg": 186.2,
        "station_count": 1096,
        "comparison_station_count": 1096
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 4.5,
        "current_avg": 191.5,
        "previous_avg": 187.0,
        "station_count": 916,
        "comparison_station_count": 916
      }
    ],
    "petrol": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 1.9,
        "current_avg": 156.1,
        "previous_avg": 154.2,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.3,
        "current_avg": 156.1,
        "previous_avg": 154.7,
        "station_count": 90,
        "comparison_station_count": 89
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 2.0,
        "current_avg": 157.7,
        "previous_avg": 155.7,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 2.3,
        "current_avg": 158.4,
        "previous_avg": 156.1,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 2.3,
        "current_avg": 158.4,
        "previous_avg": 155.7,
        "station_count": 17,
        "comparison_station_count": 15
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 6.6,
        "current_avg": 159.5,
        "previous_avg": 152.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 1.0,
        "current_avg": 160.7,
        "previous_avg": 159.7,
        "station_count": 10,
        "comparison_station_count": 10
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 1.6,
        "current_avg": 160.8,
        "previous_avg": 159.2,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 1.6,
        "current_avg": 160.9,
        "previous_avg": 159.3,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 2.0,
        "current_avg": 161.1,
        "previous_avg": 159.1,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 1.3,
        "current_avg": 162.1,
        "previous_avg": 160.8,
        "station_count": 47,
        "comparison_station_count": 47
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 1.0,
        "current_avg": 162.1,
        "previous_avg": 161.1,
        "station_count": 169,
        "comparison_station_count": 169
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 2.1,
        "current_avg": 162.5,
        "previous_avg": 160.4,
        "station_count": 311,
        "comparison_station_count": 311
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 4.0,
        "current_avg": 162.7,
        "previous_avg": 158.7,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 3.5,
        "current_avg": 162.9,
        "previous_avg": 159.4,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.3,
        "current_avg": 163.2,
        "previous_avg": 158.9,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 1.4,
        "current_avg": 163.3,
        "previous_avg": 161.8,
        "station_count": 46,
        "comparison_station_count": 45
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 2.7,
        "current_avg": 163.4,
        "previous_avg": 160.7,
        "station_count": 46,
        "comparison_station_count": 46
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 3.1,
        "current_avg": 163.5,
        "previous_avg": 160.4,
        "station_count": 510,
        "comparison_station_count": 510
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 1.4,
        "current_avg": 163.8,
        "previous_avg": 162.4,
        "station_count": 296,
        "comparison_station_count": 296
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 3.3,
        "current_avg": 164.4,
        "previous_avg": 161.1,
        "station_count": 165,
        "comparison_station_count": 165
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 1.5,
        "current_avg": 164.8,
        "previous_avg": 163.3,
        "station_count": 148,
        "comparison_station_count": 148
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 3.6,
        "current_avg": 165.7,
        "previous_avg": 162.1,
        "station_count": 1458,
        "comparison_station_count": 1457
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": -0.9,
        "current_avg": 166.1,
        "previous_avg": 167.0,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 2.5,
        "current_avg": 166.8,
        "previous_avg": 164.3,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 3.7,
        "current_avg": 167.8,
        "previous_avg": 164.1,
        "station_count": 1099,
        "comparison_station_count": 1098
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 4.9,
        "current_avg": 169.8,
        "previous_avg": 164.9,
        "station_count": 918,
        "comparison_station_count": 918
      }
    ],
    "premium_diesel": [
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 0.6,
        "current_avg": 183.0,
        "previous_avg": 182.4,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 1.3,
        "current_avg": 183.2,
        "previous_avg": 181.9,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.5,
        "current_avg": 185.6,
        "previous_avg": 185.1,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.3,
        "current_avg": 194.4,
        "previous_avg": 190.1,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 1.8,
        "current_avg": 194.5,
        "previous_avg": 192.7,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 2.8,
        "current_avg": 195.4,
        "previous_avg": 192.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.9,
        "current_avg": 195.4,
        "previous_avg": 194.5,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 1.1,
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        "previous_avg": 195.8,
        "station_count": 163,
        "comparison_station_count": 163
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.2,
        "current_avg": 197.3,
        "previous_avg": 197.1,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 1.0,
        "current_avg": 197.9,
        "previous_avg": 196.9,
        "station_count": 76,
        "comparison_station_count": 76
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.6,
        "current_avg": 198.3,
        "previous_avg": 195.7,
        "station_count": 293,
        "comparison_station_count": 293
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 2.8,
        "current_avg": 200.4,
        "previous_avg": 197.6,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 1.5,
        "current_avg": 201.5,
        "previous_avg": 200.0,
        "station_count": 1163,
        "comparison_station_count": 1162
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 4.3,
        "current_avg": 201.6,
        "previous_avg": 197.3,
        "station_count": 17,
        "comparison_station_count": 17
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 2.0,
        "current_avg": 202.3,
        "previous_avg": 200.3,
        "station_count": 133,
        "comparison_station_count": 133
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 2.5,
        "current_avg": 206.2,
        "previous_avg": 203.7,
        "station_count": 1004,
        "comparison_station_count": 1004
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 1.1,
        "current_avg": 206.2,
        "previous_avg": 205.1,
        "station_count": 74,
        "comparison_station_count": 74
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 4.3,
        "current_avg": 212.5,
        "previous_avg": 208.2,
        "station_count": 870,
        "comparison_station_count": 870
      }
    ],
    "premium_petrol": [
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.1,
        "current_avg": 164.3,
        "previous_avg": 163.2,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 1.9,
        "current_avg": 164.8,
        "previous_avg": 162.5,
        "station_count": 14,
        "comparison_station_count": 13
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 2.5,
        "current_avg": 167.5,
        "previous_avg": 165.4,
        "station_count": 22,
        "comparison_station_count": 21
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 0.8,
        "current_avg": 168.1,
        "previous_avg": 167.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 1.0,
        "current_avg": 169.3,
        "previous_avg": 168.3,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 1.2,
        "current_avg": 170.7,
        "previous_avg": 169.5,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.5,
        "current_avg": 170.8,
        "previous_avg": 170.3,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 2.0,
        "current_avg": 172.3,
        "previous_avg": 170.3,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 2.0,
        "current_avg": 173.1,
        "previous_avg": 171.1,
        "station_count": 292,
        "comparison_station_count": 292
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 4.2,
        "current_avg": 173.3,
        "previous_avg": 169.1,
        "station_count": 464,
        "comparison_station_count": 464
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.1,
        "current_avg": 176.6,
        "previous_avg": 176.5,
        "station_count": 339,
        "comparison_station_count": 339
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 1.1,
        "current_avg": 176.7,
        "previous_avg": 175.6,
        "station_count": 79,
        "comparison_station_count": 79
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 0.9,
        "current_avg": 178.1,
        "previous_avg": 177.2,
        "station_count": 159,
        "comparison_station_count": 159
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 1.1,
        "current_avg": 178.1,
        "previous_avg": 177.0,
        "station_count": 244,
        "comparison_station_count": 244
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.5,
        "current_avg": 179.0,
        "previous_avg": 176.5,
        "station_count": 396,
        "comparison_station_count": 395
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.5,
        "current_avg": 179.3,
        "previous_avg": 178.8,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 2.9,
        "current_avg": 179.3,
        "previous_avg": 176.4,
        "station_count": 35,
        "comparison_station_count": 35
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 3.0,
        "current_avg": 179.9,
        "previous_avg": 176.9,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 2.6,
        "current_avg": 180.1,
        "previous_avg": 177.5,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 1.7,
        "current_avg": 181.7,
        "previous_avg": 180.0,
        "station_count": 1357,
        "comparison_station_count": 1357
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 1.9,
        "current_avg": 181.8,
        "previous_avg": 179.9,
        "station_count": 138,
        "comparison_station_count": 138
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 1.8,
        "current_avg": 184.8,
        "previous_avg": 183.0,
        "station_count": 127,
        "comparison_station_count": 127
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 2.7,
        "current_avg": 185.4,
        "previous_avg": 182.7,
        "station_count": 1046,
        "comparison_station_count": 1046
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 4.7,
        "current_avg": 192.2,
        "previous_avg": 187.5,
        "station_count": 911,
        "comparison_station_count": 911
      }
    ]
  },
  "source_updated_at": "2026-09-06T22:59:57+00:00",
  "methodology_version": "1.0-historical",
  "active_station_count": 8134,
  "supermarket_comparison": {
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      "saving": 3.1,
      "other_avg": 187.0,
      "supermarket_avg": 183.9,
      "tank_saving_gbp": 1.71,
      "comparison_station_count": 6430,
      "supermarket_station_count": 1619
    },
    "petrol": {
      "saving": 3.0,
      "other_avg": 165.4,
      "supermarket_avg": 162.4,
      "tank_saving_gbp": 1.65,
      "comparison_station_count": 6308,
      "supermarket_station_count": 1619
    },
    "premium_diesel": {
      "saving": 7.3,
      "other_avg": 203.9,
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      "tank_saving_gbp": 4.01,
      "comparison_station_count": 4115,
      "supermarket_station_count": 150
    },
    "premium_petrol": {
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      "other_avg": 182.8,
      "supermarket_avg": 174.5,
      "tank_saving_gbp": 4.57,
      "comparison_station_count": 5111,
      "supermarket_station_count": 1209
    }
  },
  "historical_station_universe_count": 8198
}