diff --git a/backend/lcfs/db/migrations/versions/2025-01-06-22-09_fa98709e7952.py b/backend/lcfs/db/migrations/versions/2025-01-06-22-09_fa98709e7952.py
new file mode 100644
index 000000000..2b815de67
--- /dev/null
+++ b/backend/lcfs/db/migrations/versions/2025-01-06-22-09_fa98709e7952.py
@@ -0,0 +1,177 @@
+"""Add legacy fuel types
+
+Revision ID: fa98709e7952
+Revises: 94306eca5261
+Create Date: 2025-01-06 22:09:52.936619
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "fa98709e7952"
+down_revision = "94306eca5261"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.execute(
+        """
+        INSERT INTO fuel_type (
+            fuel_type,
+            fossil_derived,
+            other_uses_fossil_derived,
+            default_carbon_intensity,
+            units,
+            unrecognized,
+            create_user,
+            update_user,
+            is_legacy
+        )
+        VALUES
+        -- 1) Natural gas-based gasoline
+        (
+            'Natural gas-based gasoline',
+            FALSE,
+            TRUE,
+            90.07,
+            'Litres',
+            FALSE,
+            'no_user',
+            'no_user',
+            TRUE
+        ),
+        -- 2) Petroleum-based diesel
+        (
+            'Petroleum-based diesel',
+            FALSE,
+            TRUE,
+            94.76,
+            'Litres',
+            FALSE,
+            'no_user',
+            'no_user',
+            TRUE
+        ),
+        -- 3) Petroleum-based gasoline
+        (
+            'Petroleum-based gasoline',
+            FALSE,
+            TRUE,
+            88.14,
+            'Litres',
+            FALSE,
+            'no_user',
+            'no_user',
+            TRUE
+        );
+        """
+    )
+
+    op.execute(
+        """
+        INSERT INTO energy_density (
+            fuel_type_id,
+            density,
+            uom_id,
+            create_user,
+            update_user
+        )
+        SELECT
+            ft.fuel_type_id,
+            CASE
+                WHEN ft.fuel_type = 'Natural gas-based gasoline' THEN 34.69
+                WHEN ft.fuel_type = 'Petroleum-based diesel' THEN 38.65
+                WHEN ft.fuel_type = 'Petroleum-based gasoline' THEN 34.69
+            END AS density,
+            1 AS uom_id,
+            'no_user' AS create_user,
+            'no_user' AS update_user
+        FROM fuel_type ft
+        WHERE ft.fuel_type IN (
+            'Natural gas-based gasoline',
+            'Petroleum-based diesel',
+            'Petroleum-based gasoline'
+        );
+        """
+    )
+
+    op.execute(
+        """
+        INSERT INTO energy_effectiveness_ratio (
+            fuel_category_id,
+            fuel_type_id,
+            end_use_type_id,
+            ratio,
+            create_user,
+            update_user,
+            effective_date,
+            effective_status,
+            expiration_date
+        )
+        SELECT
+            CASE
+                WHEN ft.fuel_type = 'Petroleum-based diesel' THEN 2
+                ELSE 1
+            END AS fuel_category_id,
+            ft.fuel_type_id,
+            NULL AS end_use_type_id,
+            1.0 AS ratio,
+            'no_user' AS create_user,
+            'no_user' AS update_user,
+            CURRENT_DATE AS effective_date,
+            TRUE AS effective_status,
+            NULL AS expiration_date
+        FROM fuel_type ft
+        WHERE ft.fuel_type IN (
+            'Natural gas-based gasoline',
+            'Petroleum-based diesel',
+            'Petroleum-based gasoline'
+        );
+        """
+    )
+
+
+def downgrade():
+    op.execute(
+        """
+        DELETE FROM energy_effectiveness_ratio
+        WHERE fuel_type_id IN (
+            SELECT fuel_type_id
+            FROM fuel_type
+            WHERE fuel_type IN (
+                'Natural gas-based gasoline',
+                'Petroleum-based diesel',
+                'Petroleum-based gasoline'
+            )
+        );
+        """
+    )
+
+    op.execute(
+        """
+        DELETE FROM energy_density
+        WHERE fuel_type_id IN (
+            SELECT fuel_type_id
+            FROM fuel_type
+            WHERE fuel_type IN (
+                'Natural gas-based gasoline',
+                'Petroleum-based diesel',
+                'Petroleum-based gasoline'
+            )
+        );
+        """
+    )
+
+    op.execute(
+        """
+        DELETE FROM fuel_type
+        WHERE fuel_type IN (
+            'Natural gas-based gasoline',
+            'Petroleum-based diesel',
+            'Petroleum-based gasoline'
+        );
+        """
+    )