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  },
  "is_live": false,
  "findings": [
    {
      "kind": "national",
      "title": "Petrol (E10) rose 2.2p",
      "detail": "The equal-station UK average ended the week at 153.3p per litre across 7,841 stations."
    },
    {
      "kind": "national",
      "title": "Diesel (B7) rose 3.6p",
      "detail": "The equal-station UK average ended the week at 168.4p per litre across 7,947 stations."
    },
    {
      "kind": "retailer",
      "title": "Costco had the lowest retailer petrol average",
      "detail": "Its measured average was 143.9p per litre across 21 stations."
    },
    {
      "kind": "area",
      "title": "PR postcode area was the fastest-rising petrol area",
      "detail": "The postcode-area average increased 4.3p to 154.6p per litre."
    },
    {
      "kind": "motorway",
      "title": "Motorway petrol carried a 18.6p premium",
      "detail": "That is about \u00a310.23 on a 55-litre fill compared with non-motorway stations."
    },
    {
      "kind": "supermarket",
      "title": "Supermarket petrol averaged 3.8p less",
      "detail": "The measured gap equates to about \u00a32.09 on a 55-litre fill."
    }
  ],
  "headline": "Petrol rose 2.2p and diesel rose 3.6p in the week to 19 July 2026",
  "week_start": "2026-07-13",
  "area_movers": {
    "diesel": {
      "rising": [
        {
          "key": "RM",
          "label": "RM postcode area",
          "change_7d": 5.1,
          "current_avg": 168.8,
          "previous_avg": 163.7,
          "station_count": 46,
          "comparison_station_count": 46
        },
        {
          "key": "BL",
          "label": "BL postcode area",
          "change_7d": 5.0,
          "current_avg": 166.7,
          "previous_avg": 161.7,
          "station_count": 44,
          "comparison_station_count": 44
        },
        {
          "key": "M",
          "label": "M postcode area",
          "change_7d": 5.0,
          "current_avg": 166.2,
          "previous_avg": 161.2,
          "station_count": 115,
          "comparison_station_count": 115
        },
        {
          "key": "CA",
          "label": "CA postcode area",
          "change_7d": 4.7,
          "current_avg": 172.5,
          "previous_avg": 168.0,
          "station_count": 67,
          "comparison_station_count": 66
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 4.7,
          "current_avg": 170.6,
          "previous_avg": 165.9,
          "station_count": 61,
          "comparison_station_count": 61
        }
      ],
      "falling": []
    },
    "petrol": {
      "rising": [
        {
          "key": "PR",
          "label": "PR postcode area",
          "change_7d": 4.3,
          "current_avg": 154.6,
          "previous_avg": 150.3,
          "station_count": 73,
          "comparison_station_count": 73
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 3.6,
          "current_avg": 155.9,
          "previous_avg": 152.3,
          "station_count": 61,
          "comparison_station_count": 61
        },
        {
          "key": "DL",
          "label": "DL postcode area",
          "change_7d": 3.1,
          "current_avg": 152.6,
          "previous_avg": 149.5,
          "station_count": 64,
          "comparison_station_count": 64
        },
        {
          "key": "HR",
          "label": "HR postcode area",
          "change_7d": 3.0,
          "current_avg": 152.1,
          "previous_avg": 149.1,
          "station_count": 34,
          "comparison_station_count": 34
        },
        {
          "key": "M",
          "label": "M postcode area",
          "change_7d": 3.0,
          "current_avg": 150.6,
          "previous_avg": 147.6,
          "station_count": 115,
          "comparison_station_count": 115
        }
      ],
      "falling": [
        {
          "key": "ZE",
          "label": "ZE postcode area",
          "change_7d": -0.4,
          "current_avg": 155.6,
          "previous_avg": 156.1,
          "station_count": 9,
          "comparison_station_count": 8
        }
      ]
    },
    "premium_diesel": {
      "rising": [
        {
          "key": "PR",
          "label": "PR postcode area",
          "change_7d": 6.1,
          "current_avg": 187.8,
          "previous_avg": 181.8,
          "station_count": 40,
          "comparison_station_count": 39
        },
        {
          "key": "FY",
          "label": "FY postcode area",
          "change_7d": 5.1,
          "current_avg": 187.5,
          "previous_avg": 182.4,
          "station_count": 13,
          "comparison_station_count": 13
        },
        {
          "key": "DL",
          "label": "DL postcode area",
          "change_7d": 4.8,
          "current_avg": 186.5,
          "previous_avg": 181.7,
          "station_count": 34,
          "comparison_station_count": 34
        },
        {
          "key": "CA",
          "label": "CA postcode area",
          "change_7d": 4.4,
          "current_avg": 189.6,
          "previous_avg": 185.7,
          "station_count": 40,
          "comparison_station_count": 39
        },
        {
          "key": "TD",
          "label": "TD postcode area",
          "change_7d": 4.3,
          "current_avg": 185.6,
          "previous_avg": 181.3,
          "station_count": 9,
          "comparison_station_count": 9
        }
      ],
      "falling": []
    },
    "premium_petrol": {
      "rising": [
        {
          "key": "PR",
          "label": "PR postcode area",
          "change_7d": 3.5,
          "current_avg": 170.5,
          "previous_avg": 167.0,
          "station_count": 63,
          "comparison_station_count": 63
        },
        {
          "key": "HU",
          "label": "HU postcode area",
          "change_7d": 2.9,
          "current_avg": 172.8,
          "previous_avg": 169.9,
          "station_count": 54,
          "comparison_station_count": 54
        },
        {
          "key": "FY",
          "label": "FY postcode area",
          "change_7d": 2.7,
          "current_avg": 169.9,
          "previous_avg": 167.2,
          "station_count": 21,
          "comparison_station_count": 21
        },
        {
          "key": "AL",
          "label": "AL postcode area",
          "change_7d": 2.6,
          "current_avg": 173.9,
          "previous_avg": 171.3,
          "station_count": 24,
          "comparison_station_count": 24
        },
        {
          "key": "HD",
          "label": "HD postcode area",
          "change_7d": 2.5,
          "current_avg": 168.2,
          "previous_avg": 165.7,
          "station_count": 27,
          "comparison_station_count": 27
        }
      ],
      "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": "2026-07-19",
  "generated_at": "2026-07-20T07:31:05.779968+00:00",
  "motorway_premium": {
    "diesel": {
      "premium": 23.4,
      "other_avg": 167.9,
      "motorway_avg": 191.3,
      "tank_premium_gbp": 12.87,
      "motorway_station_count": 168,
      "comparison_station_count": 7779
    },
    "petrol": {
      "premium": 18.6,
      "other_avg": 152.9,
      "motorway_avg": 171.5,
      "tank_premium_gbp": 10.23,
      "motorway_station_count": 170,
      "comparison_station_count": 7671
    },
    "premium_diesel": {
      "premium": 20.1,
      "other_avg": 187.0,
      "motorway_avg": 207.1,
      "tank_premium_gbp": 11.05,
      "motorway_station_count": 154,
      "comparison_station_count": 4086
    },
    "premium_petrol": {
      "premium": 19.4,
      "other_avg": 169.7,
      "motorway_avg": 189.1,
      "tank_premium_gbp": 10.67,
      "motorway_station_count": 161,
      "comparison_station_count": 6108
    }
  },
  "retailer_rankings": {
    "diesel": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 2.3,
        "current_avg": 157.8,
        "previous_avg": 155.5,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 4.4,
        "current_avg": 159.2,
        "previous_avg": 154.8,
        "station_count": 88,
        "comparison_station_count": 87
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 3.1,
        "current_avg": 160.9,
        "previous_avg": 157.8,
        "station_count": 47,
        "comparison_station_count": 47
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 4.3,
        "current_avg": 161.1,
        "previous_avg": 156.8,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 3.3,
        "current_avg": 161.3,
        "previous_avg": 158.0,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 8.0,
        "current_avg": 161.9,
        "previous_avg": 153.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 3.4,
        "current_avg": 164.1,
        "previous_avg": 160.7,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 1.8,
        "current_avg": 164.2,
        "previous_avg": 162.4,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 2.6,
        "current_avg": 164.6,
        "previous_avg": 162.0,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 2.1,
        "current_avg": 164.8,
        "previous_avg": 162.7,
        "station_count": 9,
        "comparison_station_count": 9
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 4.1,
        "current_avg": 165.3,
        "previous_avg": 161.2,
        "station_count": 519,
        "comparison_station_count": 519
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 2.1,
        "current_avg": 165.4,
        "previous_avg": 163.3,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 5.3,
        "current_avg": 165.5,
        "previous_avg": 160.2,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 3.5,
        "current_avg": 166.1,
        "previous_avg": 162.6,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 3.0,
        "current_avg": 166.7,
        "previous_avg": 163.7,
        "station_count": 308,
        "comparison_station_count": 308
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.8,
        "current_avg": 166.8,
        "previous_avg": 165.9,
        "station_count": 164,
        "comparison_station_count": 162
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 2.5,
        "current_avg": 167.0,
        "previous_avg": 164.5,
        "station_count": 42,
        "comparison_station_count": 42
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 3.6,
        "current_avg": 167.1,
        "previous_avg": 163.5,
        "station_count": 515,
        "comparison_station_count": 514
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 3.2,
        "current_avg": 168.2,
        "previous_avg": 165.0,
        "station_count": 146,
        "comparison_station_count": 146
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 2.3,
        "current_avg": 168.2,
        "previous_avg": 165.9,
        "station_count": 291,
        "comparison_station_count": 289
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.9,
        "current_avg": 168.7,
        "previous_avg": 167.8,
        "station_count": 49,
        "comparison_station_count": 49
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 5.1,
        "current_avg": 169.0,
        "previous_avg": 163.9,
        "station_count": 146,
        "comparison_station_count": 146
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 4.2,
        "current_avg": 169.3,
        "previous_avg": 165.1,
        "station_count": 1451,
        "comparison_station_count": 1451
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 3.4,
        "current_avg": 171.3,
        "previous_avg": 167.9,
        "station_count": 914,
        "comparison_station_count": 913
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 4.3,
        "current_avg": 171.6,
        "previous_avg": 167.3,
        "station_count": 1091,
        "comparison_station_count": 1091
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.5,
        "current_avg": 172.8,
        "previous_avg": 172.3,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 1.5,
        "current_avg": 173.3,
        "previous_avg": 171.8,
        "station_count": 27,
        "comparison_station_count": 27
      }
    ],
    "petrol": [
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 1.2,
        "current_avg": 143.9,
        "previous_avg": 142.7,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 2.1,
        "current_avg": 146.9,
        "previous_avg": 144.8,
        "station_count": 88,
        "comparison_station_count": 87
      },
      {
        "key": "Solo",
        "label": "Solo",
        "change_7d": 1.7,
        "current_avg": 147.1,
        "previous_avg": 145.4,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Nicholl",
        "label": "Nicholl",
        "change_7d": 3.6,
        "current_avg": 147.5,
        "previous_avg": 143.9,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 1.3,
        "current_avg": 148.3,
        "previous_avg": 147.0,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Emo",
        "label": "Emo",
        "change_7d": 2.7,
        "current_avg": 148.3,
        "previous_avg": 145.6,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 2.1,
        "current_avg": 149.7,
        "previous_avg": 147.6,
        "station_count": 13,
        "comparison_station_count": 13
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 2.1,
        "current_avg": 149.9,
        "previous_avg": 147.8,
        "station_count": 316,
        "comparison_station_count": 316
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 2.1,
        "current_avg": 150.1,
        "previous_avg": 148.0,
        "station_count": 519,
        "comparison_station_count": 519
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 1.6,
        "current_avg": 150.5,
        "previous_avg": 148.9,
        "station_count": 405,
        "comparison_station_count": 405
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 2.0,
        "current_avg": 150.8,
        "previous_avg": 148.8,
        "station_count": 20,
        "comparison_station_count": 20
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 2.7,
        "current_avg": 150.8,
        "previous_avg": 148.1,
        "station_count": 340,
        "comparison_station_count": 340
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 1.5,
        "current_avg": 150.9,
        "previous_avg": 149.4,
        "station_count": 48,
        "comparison_station_count": 48
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 2.1,
        "current_avg": 151.5,
        "previous_avg": 149.4,
        "station_count": 10,
        "comparison_station_count": 10
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 2.4,
        "current_avg": 152.0,
        "previous_avg": 149.6,
        "station_count": 307,
        "comparison_station_count": 307
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 1.0,
        "current_avg": 152.0,
        "previous_avg": 150.9,
        "station_count": 166,
        "comparison_station_count": 164
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 1.8,
        "current_avg": 152.1,
        "previous_avg": 150.3,
        "station_count": 43,
        "comparison_station_count": 43
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.3,
        "current_avg": 152.2,
        "previous_avg": 149.8,
        "station_count": 519,
        "comparison_station_count": 518
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 3.0,
        "current_avg": 152.6,
        "previous_avg": 149.6,
        "station_count": 147,
        "comparison_station_count": 147
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 3.0,
        "current_avg": 153.4,
        "previous_avg": 150.4,
        "station_count": 146,
        "comparison_station_count": 146
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 2.5,
        "current_avg": 153.8,
        "previous_avg": 151.3,
        "station_count": 1456,
        "comparison_station_count": 1456
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.6,
        "current_avg": 154.1,
        "previous_avg": 153.5,
        "station_count": 44,
        "comparison_station_count": 44
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 2.1,
        "current_avg": 154.2,
        "previous_avg": 152.1,
        "station_count": 290,
        "comparison_station_count": 289
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.4,
        "current_avg": 155.0,
        "previous_avg": 154.6,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 2.6,
        "current_avg": 156.0,
        "previous_avg": 153.4,
        "station_count": 1095,
        "comparison_station_count": 1095
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 2.3,
        "current_avg": 156.2,
        "previous_avg": 153.9,
        "station_count": 916,
        "comparison_station_count": 915
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.7,
        "current_avg": 158.1,
        "previous_avg": 157.4,
        "station_count": 27,
        "comparison_station_count": 27
      }
    ],
    "premium_diesel": [
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 2.5,
        "current_avg": 164.8,
        "previous_avg": 162.3,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 3.6,
        "current_avg": 166.9,
        "previous_avg": 163.3,
        "station_count": 15,
        "comparison_station_count": 15
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": -0.6,
        "current_avg": 171.4,
        "previous_avg": 172.0,
        "station_count": 7,
        "comparison_station_count": 7
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 5.0,
        "current_avg": 175.5,
        "previous_avg": 170.5,
        "station_count": 91,
        "comparison_station_count": 91
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 3.0,
        "current_avg": 175.6,
        "previous_avg": 172.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 2.9,
        "current_avg": 180.7,
        "previous_avg": 177.8,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 1.9,
        "current_avg": 181.0,
        "previous_avg": 178.6,
        "station_count": 20,
        "comparison_station_count": 19
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 2.2,
        "current_avg": 182.6,
        "previous_avg": 180.2,
        "station_count": 75,
        "comparison_station_count": 65
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 2.0,
        "current_avg": 182.7,
        "previous_avg": 180.7,
        "station_count": 162,
        "comparison_station_count": 161
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 2.5,
        "current_avg": 183.4,
        "previous_avg": 180.8,
        "station_count": 306,
        "comparison_station_count": 305
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 3.8,
        "current_avg": 185.1,
        "previous_avg": 181.3,
        "station_count": 53,
        "comparison_station_count": 53
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 2.1,
        "current_avg": 186.6,
        "previous_avg": 184.5,
        "station_count": 1160,
        "comparison_station_count": 1156
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.0,
        "current_avg": 187.1,
        "previous_avg": 187.1,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 3.4,
        "current_avg": 187.4,
        "previous_avg": 184.0,
        "station_count": 73,
        "comparison_station_count": 73
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 3.6,
        "current_avg": 189.3,
        "previous_avg": 185.7,
        "station_count": 116,
        "comparison_station_count": 116
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 3.2,
        "current_avg": 190.3,
        "previous_avg": 187.1,
        "station_count": 1000,
        "comparison_station_count": 1000
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 3.1,
        "current_avg": 193.7,
        "previous_avg": 190.7,
        "station_count": 864,
        "comparison_station_count": 863
      }
    ],
    "premium_petrol": [
      {
        "key": "Maxol",
        "label": "Maxol",
        "change_7d": 1.7,
        "current_avg": 155.9,
        "previous_avg": 154.2,
        "station_count": 52,
        "comparison_station_count": 52
      },
      {
        "key": "Costco",
        "label": "Costco",
        "change_7d": 2.2,
        "current_avg": 156.1,
        "previous_avg": 153.9,
        "station_count": 21,
        "comparison_station_count": 21
      },
      {
        "key": "Circle K",
        "label": "Circle K",
        "change_7d": 1.7,
        "current_avg": 156.4,
        "previous_avg": 154.7,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Applegreen",
        "label": "Applegreen",
        "change_7d": 2.0,
        "current_avg": 160.3,
        "previous_avg": 158.3,
        "station_count": 5,
        "comparison_station_count": 5
      },
      {
        "key": "Tesco",
        "label": "Tesco",
        "change_7d": 2.2,
        "current_avg": 160.5,
        "previous_avg": 158.3,
        "station_count": 467,
        "comparison_station_count": 467
      },
      {
        "key": "Sainsburys",
        "label": "Sainsbury's",
        "change_7d": 2.0,
        "current_avg": 161.9,
        "previous_avg": 159.9,
        "station_count": 292,
        "comparison_station_count": 292
      },
      {
        "key": "Co-op",
        "label": "Co-op",
        "change_7d": 2.2,
        "current_avg": 162.0,
        "previous_avg": 159.8,
        "station_count": 14,
        "comparison_station_count": 14
      },
      {
        "key": "Pace",
        "label": "Pace",
        "change_7d": 0.6,
        "current_avg": 163.3,
        "previous_avg": 162.7,
        "station_count": 12,
        "comparison_station_count": 12
      },
      {
        "key": "Essar",
        "label": "Essar",
        "change_7d": 0.7,
        "current_avg": 163.4,
        "previous_avg": 162.7,
        "station_count": 18,
        "comparison_station_count": 18
      },
      {
        "key": "Total Energies",
        "label": "Total Energies",
        "change_7d": 1.6,
        "current_avg": 164.5,
        "previous_avg": 162.9,
        "station_count": 8,
        "comparison_station_count": 8
      },
      {
        "key": "Harvest Energy",
        "label": "Harvest Energy",
        "change_7d": 1.4,
        "current_avg": 165.6,
        "previous_avg": 164.2,
        "station_count": 36,
        "comparison_station_count": 36
      },
      {
        "key": "Morrisons",
        "label": "Morrisons",
        "change_7d": 0.0,
        "current_avg": 166.5,
        "previous_avg": 166.5,
        "station_count": 339,
        "comparison_station_count": 339
      },
      {
        "key": "Murco",
        "label": "Murco",
        "change_7d": 0.8,
        "current_avg": 167.8,
        "previous_avg": 166.9,
        "station_count": 76,
        "comparison_station_count": 75
      },
      {
        "key": "Asda",
        "label": "Asda",
        "change_7d": 2.0,
        "current_avg": 168.4,
        "previous_avg": 166.4,
        "station_count": 78,
        "comparison_station_count": 78
      },
      {
        "key": "Texaco",
        "label": "Texaco",
        "change_7d": 1.5,
        "current_avg": 168.5,
        "previous_avg": 167.2,
        "station_count": 405,
        "comparison_station_count": 403
      },
      {
        "key": "Jet",
        "label": "Jet",
        "change_7d": 1.0,
        "current_avg": 168.8,
        "previous_avg": 167.7,
        "station_count": 243,
        "comparison_station_count": 242
      },
      {
        "key": "Central Convenience",
        "label": "Central Convenience",
        "change_7d": 0.4,
        "current_avg": 169.1,
        "previous_avg": 168.7,
        "station_count": 11,
        "comparison_station_count": 11
      },
      {
        "key": "Gulf",
        "label": "Gulf",
        "change_7d": 1.5,
        "current_avg": 169.6,
        "previous_avg": 168.1,
        "station_count": 154,
        "comparison_station_count": 154
      },
      {
        "key": "Gleaner",
        "label": "Gleaner",
        "change_7d": 0.6,
        "current_avg": 170.2,
        "previous_avg": 169.6,
        "station_count": 6,
        "comparison_station_count": 6
      },
      {
        "key": "Esso",
        "label": "Esso",
        "change_7d": 1.4,
        "current_avg": 170.9,
        "previous_avg": 169.5,
        "station_count": 1356,
        "comparison_station_count": 1356
      },
      {
        "key": "EG",
        "label": "EG",
        "change_7d": 2.8,
        "current_avg": 172.0,
        "previous_avg": 169.2,
        "station_count": 126,
        "comparison_station_count": 126
      },
      {
        "key": "Valero",
        "label": "Valero",
        "change_7d": 2.4,
        "current_avg": 173.1,
        "previous_avg": 170.7,
        "station_count": 119,
        "comparison_station_count": 119
      },
      {
        "key": "BP",
        "label": "BP",
        "change_7d": 2.1,
        "current_avg": 174.4,
        "previous_avg": 172.3,
        "station_count": 1042,
        "comparison_station_count": 1042
      },
      {
        "key": "Shell",
        "label": "Shell",
        "change_7d": 2.3,
        "current_avg": 178.4,
        "previous_avg": 176.1,
        "station_count": 909,
        "comparison_station_count": 907
      }
    ]
  },
  "source_updated_at": "2026-07-19T22:59:59+00:00",
  "methodology_version": "1.0-historical",
  "active_station_count": 8003,
  "supermarket_comparison": {
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      "saving": 4.0,
      "other_avg": 169.2,
      "supermarket_avg": 165.2,
      "tank_saving_gbp": 2.2,
      "comparison_station_count": 6326,
      "supermarket_station_count": 1621
    },
    "petrol": {
      "saving": 3.8,
      "other_avg": 154.1,
      "supermarket_avg": 150.3,
      "tank_saving_gbp": 2.09,
      "comparison_station_count": 6220,
      "supermarket_station_count": 1621
    },
    "premium_diesel": {
      "saving": 9.6,
      "other_avg": 188.1,
      "supermarket_avg": 178.5,
      "tank_saving_gbp": 5.28,
      "comparison_station_count": 4087,
      "supermarket_station_count": 153
    },
    "premium_petrol": {
      "saving": 9.0,
      "other_avg": 172.0,
      "supermarket_avg": 163.0,
      "tank_saving_gbp": 4.95,
      "comparison_station_count": 5058,
      "supermarket_station_count": 1211
    }
  },
  "historical_station_universe_count": 8085
}