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  "is_live": false,
  "findings": [
    {
      "kind": "national",
      "title": "Petrol (E10) rose 1.6p",
      "detail": "The equal-station UK average ended the week at 173.8p per litre across 7,971 stations."
    },
    {
      "kind": "national",
      "title": "Diesel (B7) rose 3.0p",
      "detail": "The equal-station UK average ended the week at 198.9p per litre across 8,105 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": "ZE postcode area was the fastest-rising petrol area",
      "detail": "The postcode-area average increased 4.3p to 173.0p per litre."
    },
    {
      "kind": "motorway",
      "title": "Motorway petrol carried a 22.8p premium",
      "detail": "That is about \u00a312.54 on a 55-litre fill compared with non-motorway stations."
    },
    {
      "kind": "supermarket",
      "title": "Supermarket petrol averaged 2.4p less",
      "detail": "The measured gap equates to about \u00a31.32 on a 55-litre fill."
    }
  ],
  "headline": "Petrol rose 1.6p and diesel rose 3.0p in the week to 27 September 2026",
  "week_start": "2026-09-21",
  "area_movers": {
    "diesel": {
      "rising": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 7.4,
          "current_avg": 204.2,
          "previous_avg": 196.8,
          "station_count": 17,
          "comparison_station_count": 17
        },
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 5.9,
          "current_avg": 210.0,
          "previous_avg": 204.1,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "LL",
          "label": "LL postcode area",
          "change_7d": 4.6,
          "current_avg": 199.8,
          "previous_avg": 195.2,
          "station_count": 104,
          "comparison_station_count": 104
        },
        {
          "key": "LN",
          "label": "LN postcode area",
          "change_7d": 4.2,
          "current_avg": 200.5,
          "previous_avg": 196.3,
          "station_count": 50,
          "comparison_station_count": 50
        },
        {
          "key": "BD",
          "label": "BD postcode area",
          "change_7d": 3.9,
          "current_avg": 197.9,
          "previous_avg": 194.0,
          "station_count": 56,
          "comparison_station_count": 56
        }
      ],
      "falling": []
    },
    "petrol": {
      "rising": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 4.3,
          "current_avg": 173.0,
          "previous_avg": 168.7,
          "station_count": 11,
          "comparison_station_count": 11
        },
        {
          "key": "KA",
          "label": "KA postcode area",
          "change_7d": 2.9,
          "current_avg": 172.7,
          "previous_avg": 169.8,
          "station_count": 55,
          "comparison_station_count": 55
        },
        {
          "key": "SR",
          "label": "SR postcode area",
          "change_7d": 2.6,
          "current_avg": 173.3,
          "previous_avg": 170.7,
          "station_count": 26,
          "comparison_station_count": 26
        },
        {
          "key": "WN",
          "label": "WN postcode area",
          "change_7d": 2.6,
          "current_avg": 171.1,
          "previous_avg": 168.5,
          "station_count": 31,
          "comparison_station_count": 31
        },
        {
          "key": "CW",
          "label": "CW postcode area",
          "change_7d": 2.3,
          "current_avg": 175.2,
          "previous_avg": 172.9,
          "station_count": 36,
          "comparison_station_count": 36
        }
      ],
      "falling": []
    },
    "premium_diesel": {
      "rising": [
        {
          "key": "WN",
          "label": "WN postcode area",
          "change_7d": 4.8,
          "current_avg": 218.0,
          "previous_avg": 213.2,
          "station_count": 19,
          "comparison_station_count": 19
        },
        {
          "key": "LD",
          "label": "LD postcode area",
          "change_7d": 3.4,
          "current_avg": 214.3,
          "previous_avg": 210.9,
          "station_count": 5,
          "comparison_station_count": 5
        },
        {
          "key": "YO",
          "label": "YO postcode area",
          "change_7d": 3.1,
          "current_avg": 213.5,
          "previous_avg": 210.4,
          "station_count": 44,
          "comparison_station_count": 44
        },
        {
          "key": "OX",
          "label": "OX postcode area",
          "change_7d": 3.0,
          "current_avg": 218.6,
          "previous_avg": 215.6,
          "station_count": 48,
          "comparison_station_count": 48
        },
        {
          "key": "HG",
          "label": "HG postcode area",
          "change_7d": 2.8,
          "current_avg": 207.5,
          "previous_avg": 204.7,
          "station_count": 8,
          "comparison_station_count": 8
        }
      ],
      "falling": []
    },
    "premium_petrol": {
      "rising": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 4.7,
          "current_avg": 179.2,
          "previous_avg": 174.5,
          "station_count": 5,
          "comparison_station_count": 5
        },
        {
          "key": "NP",
          "label": "NP postcode area",
          "change_7d": 2.6,
          "current_avg": 190.0,
          "previous_avg": 187.4,
          "station_count": 54,
          "comparison_station_count": 54
        },
        {
          "key": "WN",
          "label": "WN postcode area",
          "change_7d": 2.4,
          "current_avg": 189.6,
          "previous_avg": 187.2,
          "station_count": 23,
          "comparison_station_count": 23
        },
        {
          "key": "TQ",
          "label": "TQ postcode area",
          "change_7d": 2.3,
          "current_avg": 187.8,
          "previous_avg": 185.5,
          "station_count": 33,
          "comparison_station_count": 33
        },
        {
          "key": "WF",
          "label": "WF postcode area",
          "change_7d": 2.1,
          "current_avg": 188.6,
          "previous_avg": 186.6,
          "station_count": 67,
          "comparison_station_count": 66
        }
      ],
      "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": "2026-09-27",
  "generated_at": "2026-09-28T07:31:16.954773+00:00",
  "motorway_premium": {
    "diesel": {
      "premium": 17.6,
      "other_avg": 198.6,
      "motorway_avg": 216.2,
      "tank_premium_gbp": 9.68,
      "motorway_station_count": 136,
      "comparison_station_count": 7969
    },
    "petrol": {
      "premium": 22.8,
      "other_avg": 173.4,
      "motorway_avg": 196.2,
      "tank_premium_gbp": 12.54,
      "motorway_station_count": 136,
      "comparison_station_count": 7835
    },
    "premium_diesel": {
      "premium": 16.9,
      "other_avg": 215.2,
      "motorway_avg": 232.1,
      "tank_premium_gbp": 9.29,
      "motorway_station_count": 132,
      "comparison_station_count": 4147
    },
    "premium_petrol": {
      "premium": 25.5,
      "other_avg": 189.5,
      "motorway_avg": 215.0,
      "tank_premium_gbp": 14.03,
      "motorway_station_count": 132,
      "comparison_station_count": 6214
    }
  },
  "retailer_rankings": {
    "diesel": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 4.6,
        "current_avg": 189.8,
        "previous_avg": 185.2,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 2.6,
        "current_avg": 193.0,
        "previous_avg": 190.4,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 1.4,
        "current_avg": 193.2,
        "previous_avg": 191.8,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 2.9,
        "current_avg": 194.5,
        "previous_avg": 191.6,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 4.2,
        "current_avg": 194.7,
        "previous_avg": 190.5,
        "station_count": 93,
        "comparison_station_count": 93
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 1.4,
        "current_avg": 194.7,
        "previous_avg": 193.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 3.4,
        "current_avg": 195.3,
        "previous_avg": 191.9,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 3.2,
        "current_avg": 196.6,
        "previous_avg": 193.4,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 5.2,
        "current_avg": 196.6,
        "previous_avg": 191.4,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 4.1,
        "current_avg": 197.7,
        "previous_avg": 193.6,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 4.6,
        "current_avg": 197.8,
        "previous_avg": 193.2,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.3,
        "current_avg": 198.0,
        "previous_avg": 193.7,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.6,
        "current_avg": 198.0,
        "previous_avg": 195.4,
        "station_count": 511,
        "comparison_station_count": 511
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 4.3,
        "current_avg": 198.2,
        "previous_avg": 193.9,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 3.8,
        "current_avg": 198.3,
        "previous_avg": 194.5,
        "station_count": 171,
        "comparison_station_count": 171
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 3.3,
        "current_avg": 198.6,
        "previous_avg": 195.3,
        "station_count": 24,
        "comparison_station_count": 24
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 3.6,
        "current_avg": 198.7,
        "previous_avg": 195.1,
        "station_count": 315,
        "comparison_station_count": 313
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 3.5,
        "current_avg": 199.1,
        "previous_avg": 195.6,
        "station_count": 51,
        "comparison_station_count": 51
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 4.1,
        "current_avg": 199.1,
        "previous_avg": 195.0,
        "station_count": 172,
        "comparison_station_count": 171
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 3.3,
        "current_avg": 199.7,
        "previous_avg": 196.4,
        "station_count": 154,
        "comparison_station_count": 154
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 3.4,
        "current_avg": 199.7,
        "previous_avg": 196.3,
        "station_count": 19,
        "comparison_station_count": 19
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 3.5,
        "current_avg": 199.8,
        "previous_avg": 196.3,
        "station_count": 304,
        "comparison_station_count": 303
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 1.7,
        "current_avg": 200.2,
        "previous_avg": 198.5,
        "station_count": 916,
        "comparison_station_count": 916
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 1.4,
        "current_avg": 200.3,
        "previous_avg": 198.9,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 2.4,
        "current_avg": 200.4,
        "previous_avg": 198.0,
        "station_count": 1452,
        "comparison_station_count": 1452
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 2.4,
        "current_avg": 201.6,
        "previous_avg": 199.2,
        "station_count": 1101,
        "comparison_station_count": 1100
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 3.3,
        "current_avg": 202.6,
        "previous_avg": 199.3,
        "station_count": 18,
        "comparison_station_count": 18
      }
    ],
    "petrol": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 2.9,
        "current_avg": 165.8,
        "previous_avg": 162.9,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 0.0,
        "current_avg": 166.3,
        "previous_avg": 166.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 0.5,
        "current_avg": 167.7,
        "previous_avg": 167.2,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.4,
        "current_avg": 167.7,
        "previous_avg": 166.3,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 0.3,
        "current_avg": 168.2,
        "previous_avg": 167.9,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 0.5,
        "current_avg": 169.6,
        "previous_avg": 169.1,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 1.4,
        "current_avg": 170.8,
        "previous_avg": 169.4,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 1.4,
        "current_avg": 172.3,
        "previous_avg": 170.9,
        "station_count": 25,
        "comparison_station_count": 25
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 3.5,
        "current_avg": 172.5,
        "previous_avg": 169.0,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 2.3,
        "current_avg": 172.6,
        "previous_avg": 170.3,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 1.3,
        "current_avg": 172.6,
        "previous_avg": 171.3,
        "station_count": 516,
        "comparison_station_count": 516
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 2.6,
        "current_avg": 172.7,
        "previous_avg": 170.1,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 1.7,
        "current_avg": 172.7,
        "previous_avg": 171.0,
        "station_count": 172,
        "comparison_station_count": 171
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 1.9,
        "current_avg": 172.8,
        "previous_avg": 170.9,
        "station_count": 315,
        "comparison_station_count": 313
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 2.1,
        "current_avg": 172.9,
        "previous_avg": 170.8,
        "station_count": 173,
        "comparison_station_count": 173
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 2.4,
        "current_avg": 173.1,
        "previous_avg": 170.7,
        "station_count": 50,
        "comparison_station_count": 50
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 2.7,
        "current_avg": 173.2,
        "previous_avg": 170.5,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 2.4,
        "current_avg": 173.2,
        "previous_avg": 170.8,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 1.6,
        "current_avg": 173.8,
        "previous_avg": 172.2,
        "station_count": 46,
        "comparison_station_count": 46
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 1.4,
        "current_avg": 173.9,
        "previous_avg": 172.5,
        "station_count": 19,
        "comparison_station_count": 19
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 2.0,
        "current_avg": 174.0,
        "previous_avg": 172.0,
        "station_count": 156,
        "comparison_station_count": 156
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 1.7,
        "current_avg": 174.2,
        "previous_avg": 172.5,
        "station_count": 303,
        "comparison_station_count": 302
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 1.6,
        "current_avg": 174.8,
        "previous_avg": 173.2,
        "station_count": 1457,
        "comparison_station_count": 1457
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 0.9,
        "current_avg": 176.2,
        "previous_avg": 175.3,
        "station_count": 918,
        "comparison_station_count": 918
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 1.4,
        "current_avg": 176.5,
        "previous_avg": 175.1,
        "station_count": 1104,
        "comparison_station_count": 1103
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 1.8,
        "current_avg": 176.7,
        "previous_avg": 174.9,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 2.1,
        "current_avg": 176.8,
        "previous_avg": 174.7,
        "station_count": 18,
        "comparison_station_count": 18
      }
    ],
    "premium_diesel": [
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 2.0,
        "current_avg": 195.3,
        "previous_avg": 193.3,
        "station_count": 9,
        "comparison_station_count": 9
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 2.8,
        "current_avg": 197.5,
        "previous_avg": 194.7,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 3.7,
        "current_avg": 198.4,
        "previous_avg": 194.7,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 3.2,
        "current_avg": 203.1,
        "previous_avg": 199.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.1,
        "current_avg": 207.4,
        "previous_avg": 203.3,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.2,
        "current_avg": 210.1,
        "previous_avg": 207.9,
        "station_count": 296,
        "comparison_station_count": 295
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 5.2,
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        "previous_avg": 205.2,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 4.6,
        "current_avg": 210.4,
        "previous_avg": 205.8,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 2.6,
        "current_avg": 210.6,
        "previous_avg": 208.0,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 2.9,
        "current_avg": 211.0,
        "previous_avg": 208.1,
        "station_count": 164,
        "comparison_station_count": 163
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 2.6,
        "current_avg": 212.2,
        "previous_avg": 209.6,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 2.5,
        "current_avg": 212.7,
        "previous_avg": 210.2,
        "station_count": 136,
        "comparison_station_count": 135
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 2.0,
        "current_avg": 213.0,
        "previous_avg": 211.0,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 1.1,
        "current_avg": 215.5,
        "previous_avg": 214.4,
        "station_count": 1165,
        "comparison_station_count": 1165
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 3.1,
        "current_avg": 218.7,
        "previous_avg": 215.6,
        "station_count": 80,
        "comparison_station_count": 80
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 2.0,
        "current_avg": 218.9,
        "previous_avg": 216.9,
        "station_count": 1009,
        "comparison_station_count": 1008
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 1.5,
        "current_avg": 221.4,
        "previous_avg": 219.9,
        "station_count": 870,
        "comparison_station_count": 870
      }
    ],
    "premium_petrol": [
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": -0.1,
        "current_avg": 174.2,
        "previous_avg": 174.3,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 1.8,
        "current_avg": 175.2,
        "previous_avg": 173.4,
        "station_count": 22,
        "comparison_station_count": 22
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.3,
        "current_avg": 175.9,
        "previous_avg": 174.6,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 1.5,
        "current_avg": 177.8,
        "previous_avg": 176.3,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 2.8,
        "current_avg": 179.1,
        "previous_avg": 176.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 1.7,
        "current_avg": 181.2,
        "previous_avg": 179.5,
        "station_count": 23,
        "comparison_station_count": 23
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 1.4,
        "current_avg": 181.2,
        "previous_avg": 179.8,
        "station_count": 464,
        "comparison_station_count": 464
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 2.2,
        "current_avg": 184.0,
        "previous_avg": 181.8,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 3.4,
        "current_avg": 184.4,
        "previous_avg": 181.0,
        "station_count": 292,
        "comparison_station_count": 292
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 1.6,
        "current_avg": 184.5,
        "previous_avg": 182.9,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.0,
        "current_avg": 186.5,
        "previous_avg": 186.5,
        "station_count": 339,
        "comparison_station_count": 339
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.5,
        "current_avg": 186.7,
        "previous_avg": 186.2,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 2.4,
        "current_avg": 187.2,
        "previous_avg": 184.8,
        "station_count": 81,
        "comparison_station_count": 81
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 2.2,
        "current_avg": 187.6,
        "previous_avg": 185.4,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 1.4,
        "current_avg": 187.8,
        "previous_avg": 186.4,
        "station_count": 162,
        "comparison_station_count": 161
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 1.4,
        "current_avg": 187.8,
        "previous_avg": 186.4,
        "station_count": 398,
        "comparison_station_count": 398
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 1.3,
        "current_avg": 188.0,
        "previous_avg": 186.8,
        "station_count": 246,
        "comparison_station_count": 244
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 1.1,
        "current_avg": 189.6,
        "previous_avg": 188.5,
        "station_count": 143,
        "comparison_station_count": 142
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 1.7,
        "current_avg": 190.4,
        "previous_avg": 188.7,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 1.0,
        "current_avg": 191.1,
        "previous_avg": 190.1,
        "station_count": 1357,
        "comparison_station_count": 1357
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 1.4,
        "current_avg": 192.3,
        "previous_avg": 190.9,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 2.0,
        "current_avg": 193.7,
        "previous_avg": 191.7,
        "station_count": 135,
        "comparison_station_count": 135
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 1.1,
        "current_avg": 194.1,
        "previous_avg": 193.0,
        "station_count": 1053,
        "comparison_station_count": 1050
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 0.7,
        "current_avg": 198.8,
        "previous_avg": 198.1,
        "station_count": 911,
        "comparison_station_count": 911
      }
    ]
  },
  "source_updated_at": "2026-09-27T22:59:32+00:00",
  "methodology_version": "1.0-historical",
  "active_station_count": 8065,
  "supermarket_comparison": {
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      "saving": 3.1,
      "other_avg": 199.5,
      "supermarket_avg": 196.4,
      "tank_saving_gbp": 1.71,
      "comparison_station_count": 6486,
      "supermarket_station_count": 1619
    },
    "petrol": {
      "saving": 2.4,
      "other_avg": 174.3,
      "supermarket_avg": 171.9,
      "tank_saving_gbp": 1.32,
      "comparison_station_count": 6352,
      "supermarket_station_count": 1619
    },
    "premium_diesel": {
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      "other_avg": 216.0,
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      "tank_saving_gbp": 3.58,
      "comparison_station_count": 4129,
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    },
    "premium_petrol": {
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      "supermarket_avg": 184.0,
      "tank_saving_gbp": 4.12,
      "comparison_station_count": 5137,
      "supermarket_station_count": 1209
    }
  },
  "historical_station_universe_count": 8235
}