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  "is_live": false,
  "findings": [
    {
      "kind": "national",
      "title": "Petrol (E10) rose 0.1p",
      "detail": "The equal-station UK average ended the week at 161.2p per litre across 7,910 stations."
    },
    {
      "kind": "national",
      "title": "Diesel (B7) rose 0.8p",
      "detail": "The equal-station UK average ended the week at 182.5p per litre across 8,029 stations."
    },
    {
      "kind": "retailer",
      "title": "Nicholl had the lowest retailer petrol average",
      "detail": "Its measured average was 151.7p per litre across 5 stations."
    },
    {
      "kind": "area",
      "title": "ZE postcode area was the fastest-rising petrol area",
      "detail": "The postcode-area average increased 2.5p to 159.6p per litre."
    },
    {
      "kind": "motorway",
      "title": "Motorway petrol carried a 16.7p premium",
      "detail": "That is about \u00a39.19 on a 55-litre fill compared with non-motorway stations."
    },
    {
      "kind": "supermarket",
      "title": "Supermarket petrol averaged 2.8p less",
      "detail": "The measured gap equates to about \u00a31.54 on a 55-litre fill."
    }
  ],
  "headline": "Petrol rose 0.1p and diesel rose 0.8p in the week to 23 August 2026",
  "week_start": "2026-08-17",
  "area_movers": {
    "diesel": {
      "rising": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 3.1,
          "current_avg": 180.8,
          "previous_avg": 177.7,
          "station_count": 17,
          "comparison_station_count": 17
        },
        {
          "key": "KW",
          "label": "KW postcode area",
          "change_7d": 2.6,
          "current_avg": 184.6,
          "previous_avg": 182.0,
          "station_count": 24,
          "comparison_station_count": 24
        },
        {
          "key": "BT",
          "label": "BT postcode area",
          "change_7d": 2.2,
          "current_avg": 175.7,
          "previous_avg": 173.5,
          "station_count": 547,
          "comparison_station_count": 532
        },
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 2.0,
          "current_avg": 188.8,
          "previous_avg": 186.8,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "FY",
          "label": "FY postcode area",
          "change_7d": 1.8,
          "current_avg": 180.2,
          "previous_avg": 178.4,
          "station_count": 26,
          "comparison_station_count": 26
        }
      ],
      "falling": [
        {
          "key": "HG",
          "label": "HG postcode area",
          "change_7d": -0.4,
          "current_avg": 180.9,
          "previous_avg": 181.3,
          "station_count": 20,
          "comparison_station_count": 20
        },
        {
          "key": "CO",
          "label": "CO postcode area",
          "change_7d": -0.1,
          "current_avg": 182.1,
          "previous_avg": 182.2,
          "station_count": 54,
          "comparison_station_count": 54
        }
      ]
    },
    "petrol": {
      "rising": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 2.5,
          "current_avg": 159.6,
          "previous_avg": 157.1,
          "station_count": 11,
          "comparison_station_count": 11
        },
        {
          "key": "BR",
          "label": "BR postcode area",
          "change_7d": 1.2,
          "current_avg": 163.6,
          "previous_avg": 162.4,
          "station_count": 30,
          "comparison_station_count": 30
        },
        {
          "key": "HR",
          "label": "HR postcode area",
          "change_7d": 1.1,
          "current_avg": 160.2,
          "previous_avg": 159.1,
          "station_count": 34,
          "comparison_station_count": 34
        },
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 1.1,
          "current_avg": 163.0,
          "previous_avg": 161.9,
          "station_count": 13,
          "comparison_station_count": 13
        },
        {
          "key": "KW",
          "label": "KW postcode area",
          "change_7d": 1.0,
          "current_avg": 160.2,
          "previous_avg": 159.2,
          "station_count": 17,
          "comparison_station_count": 17
        }
      ],
      "falling": [
        {
          "key": "EN",
          "label": "EN postcode area",
          "change_7d": -1.0,
          "current_avg": 162.3,
          "previous_avg": 163.3,
          "station_count": 38,
          "comparison_station_count": 38
        },
        {
          "key": "W",
          "label": "W postcode area",
          "change_7d": -0.7,
          "current_avg": 160.7,
          "previous_avg": 161.4,
          "station_count": 28,
          "comparison_station_count": 28
        },
        {
          "key": "AL",
          "label": "AL postcode area",
          "change_7d": -0.6,
          "current_avg": 164.2,
          "previous_avg": 164.8,
          "station_count": 27,
          "comparison_station_count": 27
        },
        {
          "key": "HA",
          "label": "HA postcode area",
          "change_7d": -0.6,
          "current_avg": 161.5,
          "previous_avg": 162.1,
          "station_count": 29,
          "comparison_station_count": 29
        },
        {
          "key": "SE",
          "label": "SE postcode area",
          "change_7d": -0.5,
          "current_avg": 161.4,
          "previous_avg": 162.0,
          "station_count": 60,
          "comparison_station_count": 59
        }
      ]
    },
    "premium_diesel": {
      "rising": [
        {
          "key": "KT",
          "label": "KT postcode area",
          "change_7d": 4.9,
          "current_avg": 205.4,
          "previous_avg": 200.5,
          "station_count": 43,
          "comparison_station_count": 43
        },
        {
          "key": "SM",
          "label": "SM postcode area",
          "change_7d": 4.7,
          "current_avg": 206.0,
          "previous_avg": 201.3,
          "station_count": 11,
          "comparison_station_count": 11
        },
        {
          "key": "UB",
          "label": "UB postcode area",
          "change_7d": 4.2,
          "current_avg": 206.5,
          "previous_avg": 202.3,
          "station_count": 24,
          "comparison_station_count": 24
        },
        {
          "key": "SW",
          "label": "SW postcode area",
          "change_7d": 3.8,
          "current_avg": 202.7,
          "previous_avg": 198.9,
          "station_count": 26,
          "comparison_station_count": 26
        },
        {
          "key": "CH",
          "label": "CH postcode area",
          "change_7d": 3.6,
          "current_avg": 203.6,
          "previous_avg": 200.0,
          "station_count": 54,
          "comparison_station_count": 54
        }
      ],
      "falling": [
        {
          "key": "ML",
          "label": "ML postcode area",
          "change_7d": -0.3,
          "current_avg": 198.9,
          "previous_avg": 199.2,
          "station_count": 34,
          "comparison_station_count": 34
        }
      ]
    },
    "premium_petrol": {
      "rising": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": 3.0,
          "current_avg": 156.8,
          "previous_avg": 153.8,
          "station_count": 5,
          "comparison_station_count": 5
        },
        {
          "key": "KW",
          "label": "KW postcode area",
          "change_7d": 1.6,
          "current_avg": 167.2,
          "previous_avg": 165.6,
          "station_count": 11,
          "comparison_station_count": 11
        },
        {
          "key": "WN",
          "label": "WN postcode area",
          "change_7d": 1.3,
          "current_avg": 178.0,
          "previous_avg": 176.7,
          "station_count": 23,
          "comparison_station_count": 23
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 0.9,
          "current_avg": 180.7,
          "previous_avg": 179.8,
          "station_count": 54,
          "comparison_station_count": 54
        },
        {
          "key": "LL",
          "label": "LL postcode area",
          "change_7d": 0.8,
          "current_avg": 179.2,
          "previous_avg": 178.4,
          "station_count": 64,
          "comparison_station_count": 64
        }
      ],
      "falling": [
        {
          "key": "AL",
          "label": "AL postcode area",
          "change_7d": -1.3,
          "current_avg": 181.8,
          "previous_avg": 183.1,
          "station_count": 24,
          "comparison_station_count": 24
        },
        {
          "key": "HG",
          "label": "HG postcode area",
          "change_7d": -0.8,
          "current_avg": 177.0,
          "previous_avg": 177.8,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "EN",
          "label": "EN postcode area",
          "change_7d": -0.6,
          "current_avg": 181.0,
          "previous_avg": 181.6,
          "station_count": 36,
          "comparison_station_count": 36
        },
        {
          "key": "W",
          "label": "W postcode area",
          "change_7d": -0.6,
          "current_avg": 181.7,
          "previous_avg": 182.3,
          "station_count": 27,
          "comparison_station_count": 27
        },
        {
          "key": "BR",
          "label": "BR postcode area",
          "change_7d": -0.5,
          "current_avg": 182.3,
          "previous_avg": 182.8,
          "station_count": 27,
          "comparison_station_count": 27
        }
      ]
    }
  },
  "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": "2026-08-23",
  "generated_at": "2026-08-24T07:31:03.325237+00:00",
  "motorway_premium": {
    "diesel": {
      "premium": 17.1,
      "other_avg": 182.2,
      "motorway_avg": 199.3,
      "tank_premium_gbp": 9.41,
      "motorway_station_count": 168,
      "comparison_station_count": 7861
    },
    "petrol": {
      "premium": 16.7,
      "other_avg": 160.9,
      "motorway_avg": 177.6,
      "tank_premium_gbp": 9.19,
      "motorway_station_count": 170,
      "comparison_station_count": 7740
    },
    "premium_diesel": {
      "premium": 13.4,
      "other_avg": 200.1,
      "motorway_avg": 213.5,
      "tank_premium_gbp": 7.37,
      "motorway_station_count": 154,
      "comparison_station_count": 4107
    },
    "premium_petrol": {
      "premium": 16.6,
      "other_avg": 178.0,
      "motorway_avg": 194.6,
      "tank_premium_gbp": 9.13,
      "motorway_station_count": 161,
      "comparison_station_count": 6148
    }
  },
  "retailer_rankings": {
    "diesel": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 0.8,
        "current_avg": 173.6,
        "previous_avg": 172.8,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 0.2,
        "current_avg": 174.4,
        "previous_avg": 174.2,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.7,
        "current_avg": 175.8,
        "previous_avg": 174.1,
        "station_count": 90,
        "comparison_station_count": 90
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 1.6,
        "current_avg": 176.1,
        "previous_avg": 174.5,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 1.6,
        "current_avg": 176.9,
        "previous_avg": 175.3,
        "station_count": 48,
        "comparison_station_count": 47
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 2.9,
        "current_avg": 178.2,
        "previous_avg": 175.3,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 0.0,
        "current_avg": 178.7,
        "previous_avg": 178.7,
        "station_count": 519,
        "comparison_station_count": 519
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 0.2,
        "current_avg": 179.0,
        "previous_avg": 178.8,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 0.0,
        "current_avg": 179.3,
        "previous_avg": 179.3,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 0.0,
        "current_avg": 179.3,
        "previous_avg": 179.3,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.2,
        "current_avg": 179.8,
        "previous_avg": 179.6,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 0.5,
        "current_avg": 180.1,
        "previous_avg": 179.6,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 0.6,
        "current_avg": 180.4,
        "previous_avg": 179.8,
        "station_count": 9,
        "comparison_station_count": 9
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 0.3,
        "current_avg": 180.5,
        "previous_avg": 180.2,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 0.4,
        "current_avg": 181.1,
        "previous_avg": 180.7,
        "station_count": 310,
        "comparison_station_count": 310
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 1.1,
        "current_avg": 181.4,
        "previous_avg": 180.3,
        "station_count": 523,
        "comparison_station_count": 523
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 1.4,
        "current_avg": 181.5,
        "previous_avg": 180.1,
        "station_count": 44,
        "comparison_station_count": 44
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 1.0,
        "current_avg": 181.6,
        "previous_avg": 180.6,
        "station_count": 167,
        "comparison_station_count": 167
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 1.7,
        "current_avg": 182.2,
        "previous_avg": 180.6,
        "station_count": 146,
        "comparison_station_count": 145
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 0.9,
        "current_avg": 182.6,
        "previous_avg": 181.7,
        "station_count": 148,
        "comparison_station_count": 148
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.2,
        "current_avg": 182.8,
        "previous_avg": 182.6,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 0.9,
        "current_avg": 183.0,
        "previous_avg": 182.1,
        "station_count": 296,
        "comparison_station_count": 296
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 0.4,
        "current_avg": 183.5,
        "previous_avg": 183.1,
        "station_count": 1452,
        "comparison_station_count": 1452
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 0.9,
        "current_avg": 185.3,
        "previous_avg": 184.4,
        "station_count": 1096,
        "comparison_station_count": 1095
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.8,
        "current_avg": 186.0,
        "previous_avg": 185.2,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 1.2,
        "current_avg": 186.7,
        "previous_avg": 185.5,
        "station_count": 917,
        "comparison_station_count": 917
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.2,
        "current_avg": 186.8,
        "previous_avg": 186.6,
        "station_count": 18,
        "comparison_station_count": 18
      }
    ],
    "petrol": [
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 1.0,
        "current_avg": 151.7,
        "previous_avg": 150.7,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 0.6,
        "current_avg": 153.7,
        "previous_avg": 153.1,
        "station_count": 89,
        "comparison_station_count": 89
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 0.6,
        "current_avg": 153.8,
        "previous_avg": 153.1,
        "station_count": 22,
        "comparison_station_count": 21
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 0.7,
        "current_avg": 154.7,
        "previous_avg": 154.0,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 2.9,
        "current_avg": 154.9,
        "previous_avg": 152.0,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": -0.3,
        "current_avg": 155.6,
        "previous_avg": 155.9,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 0.2,
        "current_avg": 158.2,
        "previous_avg": 158.0,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 0.6,
        "current_avg": 158.5,
        "previous_avg": 157.9,
        "station_count": 10,
        "comparison_station_count": 10
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": -0.7,
        "current_avg": 158.7,
        "previous_avg": 159.4,
        "station_count": 519,
        "comparison_station_count": 519
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": -0.7,
        "current_avg": 158.9,
        "previous_avg": 159.6,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": -0.6,
        "current_avg": 158.9,
        "previous_avg": 159.5,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": -0.4,
        "current_avg": 159.1,
        "previous_avg": 159.5,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": -0.1,
        "current_avg": 159.8,
        "previous_avg": 159.9,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.6,
        "current_avg": 159.8,
        "previous_avg": 159.2,
        "station_count": 45,
        "comparison_station_count": 45
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 0.1,
        "current_avg": 159.8,
        "previous_avg": 159.7,
        "station_count": 311,
        "comparison_station_count": 310
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 0.2,
        "current_avg": 159.9,
        "previous_avg": 159.7,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 0.2,
        "current_avg": 160.0,
        "previous_avg": 159.8,
        "station_count": 527,
        "comparison_station_count": 527
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.5,
        "current_avg": 160.2,
        "previous_avg": 159.7,
        "station_count": 169,
        "comparison_station_count": 169
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 0.2,
        "current_avg": 160.4,
        "previous_avg": 160.2,
        "station_count": 148,
        "comparison_station_count": 148
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 0.3,
        "current_avg": 160.6,
        "previous_avg": 160.3,
        "station_count": 147,
        "comparison_station_count": 147
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 0.5,
        "current_avg": 161.5,
        "previous_avg": 161.0,
        "station_count": 296,
        "comparison_station_count": 295
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": -0.2,
        "current_avg": 161.5,
        "previous_avg": 161.7,
        "station_count": 45,
        "comparison_station_count": 45
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": -0.1,
        "current_avg": 162.0,
        "previous_avg": 162.1,
        "station_count": 1457,
        "comparison_station_count": 1457
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 0.2,
        "current_avg": 163.6,
        "previous_avg": 163.4,
        "station_count": 1099,
        "comparison_station_count": 1098
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.2,
        "current_avg": 163.8,
        "previous_avg": 163.6,
        "station_count": 27,
        "comparison_station_count": 27
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 1.0,
        "current_avg": 164.8,
        "previous_avg": 163.8,
        "station_count": 919,
        "comparison_station_count": 918
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.4,
        "current_avg": 167.4,
        "previous_avg": 167.0,
        "station_count": 18,
        "comparison_station_count": 18
      }
    ],
    "premium_diesel": [
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.3,
        "current_avg": 181.2,
        "previous_avg": 179.9,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 2.1,
        "current_avg": 181.4,
        "previous_avg": 178.9,
        "station_count": 13,
        "comparison_station_count": 12
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.5,
        "current_avg": 182.9,
        "previous_avg": 182.4,
        "station_count": 7,
        "comparison_station_count": 7
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.2,
        "current_avg": 189.7,
        "previous_avg": 189.5,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 0.3,
        "current_avg": 191.9,
        "previous_avg": 191.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 0.4,
        "current_avg": 192.1,
        "previous_avg": 191.7,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.2,
        "current_avg": 193.9,
        "previous_avg": 193.7,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 0.5,
        "current_avg": 194.7,
        "previous_avg": 194.2,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 0.3,
        "current_avg": 195.0,
        "previous_avg": 194.7,
        "station_count": 163,
        "comparison_station_count": 163
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 0.8,
        "current_avg": 195.2,
        "previous_avg": 194.4,
        "station_count": 308,
        "comparison_station_count": 308
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 0.3,
        "current_avg": 195.6,
        "previous_avg": 195.3,
        "station_count": 76,
        "comparison_station_count": 76
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.4,
        "current_avg": 197.3,
        "previous_avg": 196.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 1.6,
        "current_avg": 197.4,
        "previous_avg": 195.8,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 0.4,
        "current_avg": 199.6,
        "previous_avg": 199.2,
        "station_count": 1162,
        "comparison_station_count": 1162
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 1.0,
        "current_avg": 200.8,
        "previous_avg": 199.8,
        "station_count": 117,
        "comparison_station_count": 117
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 1.8,
        "current_avg": 201.3,
        "previous_avg": 199.6,
        "station_count": 74,
        "comparison_station_count": 73
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 0.7,
        "current_avg": 203.0,
        "previous_avg": 202.3,
        "station_count": 1004,
        "comparison_station_count": 1003
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 6.8,
        "current_avg": 207.8,
        "previous_avg": 201.0,
        "station_count": 869,
        "comparison_station_count": 869
      }
    ],
    "premium_petrol": [
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 0.1,
        "current_avg": 162.4,
        "previous_avg": 162.3,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 0.2,
        "current_avg": 162.5,
        "previous_avg": 162.3,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": -0.2,
        "current_avg": 165.2,
        "previous_avg": 165.4,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 0.0,
        "current_avg": 166.3,
        "previous_avg": 166.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.0,
        "current_avg": 167.9,
        "previous_avg": 167.9,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 0.2,
        "current_avg": 169.0,
        "previous_avg": 168.8,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": -0.7,
        "current_avg": 169.1,
        "previous_avg": 169.8,
        "station_count": 467,
        "comparison_station_count": 467
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": -0.3,
        "current_avg": 170.3,
        "previous_avg": 170.6,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 1.0,
        "current_avg": 170.3,
        "previous_avg": 169.3,
        "station_count": 19,
        "comparison_station_count": 19
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": -0.5,
        "current_avg": 171.0,
        "previous_avg": 171.5,
        "station_count": 292,
        "comparison_station_count": 292
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": -0.2,
        "current_avg": 175.1,
        "previous_avg": 175.3,
        "station_count": 79,
        "comparison_station_count": 79
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": -0.3,
        "current_avg": 175.3,
        "previous_avg": 175.6,
        "station_count": 36,
        "comparison_station_count": 36
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.3,
        "current_avg": 175.9,
        "previous_avg": 175.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 0.5,
        "current_avg": 176.1,
        "previous_avg": 175.6,
        "station_count": 412,
        "comparison_station_count": 412
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 0.5,
        "current_avg": 176.4,
        "previous_avg": 175.9,
        "station_count": 159,
        "comparison_station_count": 159
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.0,
        "current_avg": 176.5,
        "previous_avg": 176.5,
        "station_count": 339,
        "comparison_station_count": 339
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 0.4,
        "current_avg": 176.7,
        "previous_avg": 176.3,
        "station_count": 244,
        "comparison_station_count": 244
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 1.0,
        "current_avg": 177.5,
        "previous_avg": 176.5,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.3,
        "current_avg": 178.7,
        "previous_avg": 178.4,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 0.6,
        "current_avg": 179.9,
        "previous_avg": 179.3,
        "station_count": 120,
        "comparison_station_count": 120
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 0.2,
        "current_avg": 180.0,
        "previous_avg": 179.8,
        "station_count": 1357,
        "comparison_station_count": 1357
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 0.5,
        "current_avg": 180.2,
        "previous_avg": 179.7,
        "station_count": 126,
        "comparison_station_count": 126
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 0.4,
        "current_avg": 182.2,
        "previous_avg": 181.8,
        "station_count": 1047,
        "comparison_station_count": 1046
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 0.2,
        "current_avg": 187.4,
        "previous_avg": 187.2,
        "station_count": 912,
        "comparison_station_count": 911
      }
    ]
  },
  "source_updated_at": "2026-08-23T22:59:06+00:00",
  "methodology_version": "1.0-historical",
  "active_station_count": 8115,
  "supermarket_comparison": {
    "diesel": {
      "saving": 4.0,
      "other_avg": 183.3,
      "supermarket_avg": 179.3,
      "tank_saving_gbp": 2.2,
      "comparison_station_count": 6408,
      "supermarket_station_count": 1621
    },
    "petrol": {
      "saving": 2.8,
      "other_avg": 161.8,
      "supermarket_avg": 159.0,
      "tank_saving_gbp": 1.54,
      "comparison_station_count": 6288,
      "supermarket_station_count": 1622
    },
    "premium_diesel": {
      "saving": 9.0,
      "other_avg": 200.9,
      "supermarket_avg": 191.9,
      "tank_saving_gbp": 4.95,
      "comparison_station_count": 4108,
      "supermarket_station_count": 153
    },
    "premium_petrol": {
      "saving": 7.9,
      "other_avg": 180.0,
      "supermarket_avg": 172.1,
      "tank_saving_gbp": 4.34,
      "comparison_station_count": 5098,
      "supermarket_station_count": 1211
    }
  },
  "historical_station_universe_count": 8175
}