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  "is_live": false,
  "findings": [
    {
      "kind": "national",
      "title": "Petrol (E10) rose 4.3p",
      "detail": "The equal-station UK average ended the week at 157.6p per litre across 7,860 stations."
    },
    {
      "kind": "national",
      "title": "Diesel (B7) rose 7.1p",
      "detail": "The equal-station UK average ended the week at 175.4p per litre across 7,963 stations."
    },
    {
      "kind": "retailer",
      "title": "Costco had the lowest retailer petrol average",
      "detail": "Its measured average was 147.9p per litre across 21 stations."
    },
    {
      "kind": "area",
      "title": "SM postcode area was the fastest-rising petrol area",
      "detail": "The postcode-area average increased 5.3p to 159.5p per litre."
    },
    {
      "kind": "motorway",
      "title": "Motorway petrol carried a 18.3p premium",
      "detail": "That is about \u00a310.06 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 4.3p and diesel rose 7.1p in the week to 26 July 2026",
  "week_start": "2026-07-20",
  "area_movers": {
    "diesel": {
      "rising": [
        {
          "key": "SM",
          "label": "SM postcode area",
          "change_7d": 10.5,
          "current_avg": 178.3,
          "previous_avg": 167.8,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "IG",
          "label": "IG postcode area",
          "change_7d": 9.4,
          "current_avg": 176.5,
          "previous_avg": 167.1,
          "station_count": 28,
          "comparison_station_count": 28
        },
        {
          "key": "KT",
          "label": "KT postcode area",
          "change_7d": 9.3,
          "current_avg": 177.9,
          "previous_avg": 168.6,
          "station_count": 56,
          "comparison_station_count": 55
        },
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 9.1,
          "current_avg": 181.1,
          "previous_avg": 172.0,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 8.9,
          "current_avg": 179.5,
          "previous_avg": 170.6,
          "station_count": 61,
          "comparison_station_count": 61
        }
      ],
      "falling": []
    },
    "petrol": {
      "rising": [
        {
          "key": "SM",
          "label": "SM postcode area",
          "change_7d": 5.3,
          "current_avg": 159.5,
          "previous_avg": 154.2,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "BL",
          "label": "BL postcode area",
          "change_7d": 5.2,
          "current_avg": 155.8,
          "previous_avg": 150.6,
          "station_count": 44,
          "comparison_station_count": 44
        },
        {
          "key": "CB",
          "label": "CB postcode area",
          "change_7d": 5.1,
          "current_avg": 159.9,
          "previous_avg": 154.8,
          "station_count": 54,
          "comparison_station_count": 54
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 5.1,
          "current_avg": 161.0,
          "previous_avg": 155.9,
          "station_count": 61,
          "comparison_station_count": 61
        },
        {
          "key": "BD",
          "label": "BD postcode area",
          "change_7d": 5.0,
          "current_avg": 156.2,
          "previous_avg": 151.2,
          "station_count": 56,
          "comparison_station_count": 56
        }
      ],
      "falling": []
    },
    "premium_diesel": {
      "rising": [
        {
          "key": "LD",
          "label": "LD postcode area",
          "change_7d": 9.2,
          "current_avg": 188.9,
          "previous_avg": 179.7,
          "station_count": 5,
          "comparison_station_count": 5
        },
        {
          "key": "SE",
          "label": "SE postcode area",
          "change_7d": 9.1,
          "current_avg": 196.2,
          "previous_avg": 187.1,
          "station_count": 36,
          "comparison_station_count": 36
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 8.7,
          "current_avg": 198.6,
          "previous_avg": 189.9,
          "station_count": 38,
          "comparison_station_count": 38
        },
        {
          "key": "BT",
          "label": "BT postcode area",
          "change_7d": 8.2,
          "current_avg": 175.1,
          "previous_avg": 166.9,
          "station_count": 112,
          "comparison_station_count": 112
        },
        {
          "key": "CR",
          "label": "CR postcode area",
          "change_7d": 8.1,
          "current_avg": 195.9,
          "previous_avg": 187.8,
          "station_count": 27,
          "comparison_station_count": 27
        }
      ],
      "falling": []
    },
    "premium_petrol": {
      "rising": [
        {
          "key": "HS",
          "label": "HS postcode area",
          "change_7d": 9.2,
          "current_avg": 167.9,
          "previous_avg": 158.7,
          "station_count": 8,
          "comparison_station_count": 8
        },
        {
          "key": "SM",
          "label": "SM postcode area",
          "change_7d": 6.2,
          "current_avg": 179.0,
          "previous_avg": 172.8,
          "station_count": 14,
          "comparison_station_count": 14
        },
        {
          "key": "UB",
          "label": "UB postcode area",
          "change_7d": 6.0,
          "current_avg": 179.4,
          "previous_avg": 173.4,
          "station_count": 32,
          "comparison_station_count": 32
        },
        {
          "key": "DA",
          "label": "DA postcode area",
          "change_7d": 5.9,
          "current_avg": 180.0,
          "previous_avg": 174.1,
          "station_count": 36,
          "comparison_station_count": 36
        },
        {
          "key": "AL",
          "label": "AL postcode area",
          "change_7d": 5.8,
          "current_avg": 179.7,
          "previous_avg": 173.9,
          "station_count": 24,
          "comparison_station_count": 24
        }
      ],
      "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": "2026-07-26",
  "generated_at": "2026-07-27T07:31:22.741522+00:00",
  "motorway_premium": {
    "diesel": {
      "premium": 20.4,
      "other_avg": 175.0,
      "motorway_avg": 195.4,
      "tank_premium_gbp": 11.22,
      "motorway_station_count": 168,
      "comparison_station_count": 7795
    },
    "petrol": {
      "premium": 18.3,
      "other_avg": 157.2,
      "motorway_avg": 175.5,
      "tank_premium_gbp": 10.06,
      "motorway_station_count": 170,
      "comparison_station_count": 7690
    },
    "premium_diesel": {
      "premium": 17.0,
      "other_avg": 193.6,
      "motorway_avg": 210.6,
      "tank_premium_gbp": 9.35,
      "motorway_station_count": 154,
      "comparison_station_count": 4091
    },
    "premium_petrol": {
      "premium": 18.6,
      "other_avg": 174.2,
      "motorway_avg": 192.8,
      "tank_premium_gbp": 10.23,
      "motorway_station_count": 161,
      "comparison_station_count": 6118
    }
  },
  "retailer_rankings": {
    "diesel": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 6.1,
        "current_avg": 163.9,
        "previous_avg": 157.8,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 9.3,
        "current_avg": 168.5,
        "previous_avg": 159.2,
        "station_count": 88,
        "comparison_station_count": 88
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 8.1,
        "current_avg": 169.4,
        "previous_avg": 161.3,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 5.9,
        "current_avg": 170.1,
        "previous_avg": 164.2,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 5.1,
        "current_avg": 170.4,
        "previous_avg": 165.3,
        "station_count": 519,
        "comparison_station_count": 519
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 10.2,
        "current_avg": 171.1,
        "previous_avg": 160.9,
        "station_count": 47,
        "comparison_station_count": 47
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 10.9,
        "current_avg": 172.0,
        "previous_avg": 161.1,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 6.9,
        "current_avg": 172.4,
        "previous_avg": 165.5,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 8.4,
        "current_avg": 172.5,
        "previous_avg": 164.1,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 10.8,
        "current_avg": 172.7,
        "previous_avg": 161.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 7.5,
        "current_avg": 172.9,
        "previous_avg": 165.4,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 6.1,
        "current_avg": 172.9,
        "previous_avg": 166.8,
        "station_count": 164,
        "comparison_station_count": 164
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 8.3,
        "current_avg": 173.1,
        "previous_avg": 164.8,
        "station_count": 9,
        "comparison_station_count": 9
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 6.5,
        "current_avg": 173.5,
        "previous_avg": 167.0,
        "station_count": 43,
        "comparison_station_count": 42
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 9.0,
        "current_avg": 173.6,
        "previous_avg": 164.6,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 6.9,
        "current_avg": 173.6,
        "previous_avg": 166.7,
        "station_count": 309,
        "comparison_station_count": 308
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 7.7,
        "current_avg": 173.8,
        "previous_avg": 166.1,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 1.3,
        "current_avg": 174.1,
        "previous_avg": 172.8,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 7.4,
        "current_avg": 174.5,
        "previous_avg": 167.1,
        "station_count": 517,
        "comparison_station_count": 514
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 6.2,
        "current_avg": 174.9,
        "previous_avg": 168.7,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 6.9,
        "current_avg": 175.1,
        "previous_avg": 168.2,
        "station_count": 292,
        "comparison_station_count": 291
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 7.6,
        "current_avg": 175.8,
        "previous_avg": 168.2,
        "station_count": 146,
        "comparison_station_count": 146
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 7.4,
        "current_avg": 176.2,
        "previous_avg": 168.9,
        "station_count": 148,
        "comparison_station_count": 147
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 7.3,
        "current_avg": 176.6,
        "previous_avg": 169.3,
        "station_count": 1451,
        "comparison_station_count": 1451
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 7.1,
        "current_avg": 178.7,
        "previous_avg": 171.6,
        "station_count": 1091,
        "comparison_station_count": 1091
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 8.3,
        "current_avg": 179.6,
        "previous_avg": 171.3,
        "station_count": 915,
        "comparison_station_count": 914
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 6.6,
        "current_avg": 179.9,
        "previous_avg": 173.3,
        "station_count": 27,
        "comparison_station_count": 27
      }
    ],
    "petrol": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 4.0,
        "current_avg": 147.9,
        "previous_avg": 143.9,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 4.0,
        "current_avg": 151.5,
        "previous_avg": 147.5,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 4.8,
        "current_avg": 151.7,
        "previous_avg": 146.9,
        "station_count": 88,
        "comparison_station_count": 88
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 5.4,
        "current_avg": 153.7,
        "previous_avg": 148.3,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 6.6,
        "current_avg": 153.7,
        "previous_avg": 147.1,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 5.5,
        "current_avg": 153.8,
        "previous_avg": 148.3,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 3.3,
        "current_avg": 154.1,
        "previous_avg": 150.8,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 4.2,
        "current_avg": 154.3,
        "previous_avg": 150.1,
        "station_count": 519,
        "comparison_station_count": 519
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 2.8,
        "current_avg": 154.3,
        "previous_avg": 151.5,
        "station_count": 10,
        "comparison_station_count": 10
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 3.9,
        "current_avg": 154.8,
        "previous_avg": 150.9,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 5.4,
        "current_avg": 155.1,
        "previous_avg": 149.7,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.6,
        "current_avg": 155.4,
        "previous_avg": 150.8,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 5.5,
        "current_avg": 155.4,
        "previous_avg": 149.9,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 3.6,
        "current_avg": 155.8,
        "previous_avg": 152.1,
        "station_count": 44,
        "comparison_station_count": 43
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 3.8,
        "current_avg": 155.8,
        "previous_avg": 152.0,
        "station_count": 166,
        "comparison_station_count": 166
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 3.9,
        "current_avg": 155.9,
        "previous_avg": 152.0,
        "station_count": 309,
        "comparison_station_count": 307
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 4.0,
        "current_avg": 156.2,
        "previous_avg": 152.2,
        "station_count": 521,
        "comparison_station_count": 518
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 5.8,
        "current_avg": 156.3,
        "previous_avg": 150.5,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 1.6,
        "current_avg": 156.6,
        "previous_avg": 155.0,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 4.0,
        "current_avg": 157.4,
        "previous_avg": 153.4,
        "station_count": 148,
        "comparison_station_count": 147
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 5.0,
        "current_avg": 157.6,
        "previous_avg": 152.6,
        "station_count": 147,
        "comparison_station_count": 147
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 3.8,
        "current_avg": 158.0,
        "previous_avg": 154.2,
        "station_count": 291,
        "comparison_station_count": 290
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 4.3,
        "current_avg": 158.1,
        "previous_avg": 153.8,
        "station_count": 1456,
        "comparison_station_count": 1456
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 3.9,
        "current_avg": 158.2,
        "previous_avg": 154.1,
        "station_count": 45,
        "comparison_station_count": 44
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 4.5,
        "current_avg": 160.5,
        "previous_avg": 156.0,
        "station_count": 1095,
        "comparison_station_count": 1095
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 4.3,
        "current_avg": 160.5,
        "previous_avg": 156.2,
        "station_count": 917,
        "comparison_station_count": 916
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 3.5,
        "current_avg": 161.6,
        "previous_avg": 158.1,
        "station_count": 27,
        "comparison_station_count": 27
      }
    ],
    "premium_diesel": [
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 8.7,
        "current_avg": 173.5,
        "previous_avg": 164.8,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 7.9,
        "current_avg": 174.8,
        "previous_avg": 166.9,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 6.4,
        "current_avg": 177.8,
        "previous_avg": 171.4,
        "station_count": 7,
        "comparison_station_count": 7
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 6.3,
        "current_avg": 181.9,
        "previous_avg": 175.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 6.6,
        "current_avg": 182.1,
        "previous_avg": 175.5,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 5.4,
        "current_avg": 186.1,
        "previous_avg": 180.7,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Murco",
        "label": "Murco",
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        "previous_avg": 181.0,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 1.0,
        "current_avg": 188.1,
        "previous_avg": 187.1,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Jet",
        "label": "Jet",
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        "current_avg": 189.0,
        "previous_avg": 182.7,
        "station_count": 162,
        "comparison_station_count": 162
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 6.6,
        "current_avg": 189.2,
        "previous_avg": 182.6,
        "station_count": 75,
        "comparison_station_count": 75
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 6.3,
        "current_avg": 189.7,
        "previous_avg": 183.4,
        "station_count": 305,
        "comparison_station_count": 305
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 5.0,
        "current_avg": 190.1,
        "previous_avg": 185.1,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 7.7,
        "current_avg": 194.3,
        "previous_avg": 186.6,
        "station_count": 1161,
        "comparison_station_count": 1160
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 7.5,
        "current_avg": 194.9,
        "previous_avg": 187.4,
        "station_count": 73,
        "comparison_station_count": 73
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 6.3,
        "current_avg": 195.4,
        "previous_avg": 189.1,
        "station_count": 117,
        "comparison_station_count": 117
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 6.8,
        "current_avg": 197.1,
        "previous_avg": 190.3,
        "station_count": 1000,
        "comparison_station_count": 1000
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 5.1,
        "current_avg": 198.8,
        "previous_avg": 193.7,
        "station_count": 867,
        "comparison_station_count": 864
      }
    ],
    "premium_petrol": [
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 4.5,
        "current_avg": 160.4,
        "previous_avg": 155.9,
        "station_count": 52,
        "comparison_station_count": 52
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 4.4,
        "current_avg": 160.5,
        "previous_avg": 156.1,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 5.0,
        "current_avg": 161.4,
        "previous_avg": 156.4,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 3.6,
        "current_avg": 163.9,
        "previous_avg": 160.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 4.2,
        "current_avg": 164.7,
        "previous_avg": 160.5,
        "station_count": 467,
        "comparison_station_count": 467
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 3.4,
        "current_avg": 165.4,
        "previous_avg": 162.0,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 2.1,
        "current_avg": 165.4,
        "previous_avg": 163.3,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 2.2,
        "current_avg": 165.6,
        "previous_avg": 163.4,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 5.5,
        "current_avg": 167.4,
        "previous_avg": 161.9,
        "station_count": 292,
        "comparison_station_count": 292
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 3.5,
        "current_avg": 168.0,
        "previous_avg": 164.5,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": -0.7,
        "current_avg": 168.4,
        "previous_avg": 169.1,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 4.9,
        "current_avg": 170.5,
        "previous_avg": 165.6,
        "station_count": 36,
        "comparison_station_count": 36
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 2.8,
        "current_avg": 170.7,
        "previous_avg": 167.8,
        "station_count": 77,
        "comparison_station_count": 76
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 4.3,
        "current_avg": 170.8,
        "previous_avg": 166.5,
        "station_count": 339,
        "comparison_station_count": 339
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 3.6,
        "current_avg": 172.4,
        "previous_avg": 168.8,
        "station_count": 244,
        "comparison_station_count": 243
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 3.8,
        "current_avg": 172.4,
        "previous_avg": 168.6,
        "station_count": 406,
        "comparison_station_count": 404
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 4.8,
        "current_avg": 173.2,
        "previous_avg": 168.4,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 3.6,
        "current_avg": 173.3,
        "previous_avg": 169.6,
        "station_count": 155,
        "comparison_station_count": 154
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 4.0,
        "current_avg": 174.2,
        "previous_avg": 170.2,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 4.7,
        "current_avg": 175.6,
        "previous_avg": 170.9,
        "station_count": 1356,
        "comparison_station_count": 1356
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 3.5,
        "current_avg": 176.5,
        "previous_avg": 173.0,
        "station_count": 120,
        "comparison_station_count": 120
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 5.1,
        "current_avg": 177.1,
        "previous_avg": 172.0,
        "station_count": 126,
        "comparison_station_count": 126
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 4.4,
        "current_avg": 178.8,
        "previous_avg": 174.4,
        "station_count": 1042,
        "comparison_station_count": 1042
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 6.0,
        "current_avg": 184.4,
        "previous_avg": 178.4,
        "station_count": 910,
        "comparison_station_count": 909
      }
    ]
  },
  "source_updated_at": "2026-07-26T22:59:26+00:00",
  "methodology_version": "1.0-historical",
  "active_station_count": 8032,
  "supermarket_comparison": {
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      "saving": 4.3,
      "other_avg": 176.3,
      "supermarket_avg": 172.0,
      "tank_saving_gbp": 2.37,
      "comparison_station_count": 6342,
      "supermarket_station_count": 1621
    },
    "petrol": {
      "saving": 3.0,
      "other_avg": 158.2,
      "supermarket_avg": 155.2,
      "tank_saving_gbp": 1.65,
      "comparison_station_count": 6239,
      "supermarket_station_count": 1621
    },
    "premium_diesel": {
      "saving": 10.2,
      "other_avg": 194.6,
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      "tank_saving_gbp": 5.61,
      "comparison_station_count": 4092,
      "supermarket_station_count": 153
    },
    "premium_petrol": {
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      "supermarket_avg": 167.6,
      "tank_saving_gbp": 4.84,
      "comparison_station_count": 5068,
      "supermarket_station_count": 1211
    }
  },
  "historical_station_universe_count": 8104
}