diff --git a/FuelAndLubricants/FuelAndLubricants/Forms/FormFuel.Designer.cs b/FuelAndLubricants/FuelAndLubricants/Forms/FormFuel.Designer.cs
index 607abe8..68ec4b5 100644
--- a/FuelAndLubricants/FuelAndLubricants/Forms/FormFuel.Designer.cs
+++ b/FuelAndLubricants/FuelAndLubricants/Forms/FormFuel.Designer.cs
@@ -120,6 +120,7 @@
             numericUpDownAmount.DecimalPlaces = 2;
             numericUpDownAmount.Location = new Point(120, 89);
             numericUpDownAmount.Margin = new Padding(3, 4, 3, 4);
+            numericUpDownAmount.Maximum = new decimal(new int[] { 10000, 0, 0, 0 });
             numericUpDownAmount.Minimum = new decimal(new int[] { 1, 0, 0, 131072 });
             numericUpDownAmount.Name = "numericUpDownAmount";
             numericUpDownAmount.Size = new Size(160, 27);
diff --git a/FuelAndLubricants/FuelAndLubricants/Repositories/Implementations/FuelRepository.cs b/FuelAndLubricants/FuelAndLubricants/Repositories/Implementations/FuelRepository.cs
index 54b793b..f045eff 100644
--- a/FuelAndLubricants/FuelAndLubricants/Repositories/Implementations/FuelRepository.cs
+++ b/FuelAndLubricants/FuelAndLubricants/Repositories/Implementations/FuelRepository.cs
@@ -1,28 +1,121 @@
-using FuelAndLubricants.Entities;
+using Dapper;
+using FuelAndLubricants.Entities;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
 
 namespace FuelAndLubricants.Repositories.Implementations;
 
 public class FuelRepository : IFuelRepository
 {
+    private readonly IConnectionString _connectionString;
+
+    private readonly ILogger<FuelRepository> _logger;
+
+    public FuelRepository(IConnectionString connectionString, ILogger<FuelRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
     public void CreateFuel(Fuel_And_Lubricants fuel)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(fuel));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO Fuel_And_Lubricants (Fuel_Type, Price_Per_Liter, Amount)
+VALUES (@Fuel_Type, @Price_Per_Liter, @Amount)";
+            connection.Execute(queryInsert, fuel);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
+
     public void DeleteFuel(int id)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"
+                DELETE FROM Fuel_And_Lubricants
+                WHERE Fuel_ID=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 
     public Fuel_And_Lubricants ReadFuelByID(int id)
     {
-        return Fuel_And_Lubricants.CreateEntity(0, 0, 0, 0);
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"
+                SELECT * FROM Fuel_And_Lubricants
+                WHERE Fuel_ID=@id";
+            var fuel = connection.QueryFirst<Fuel_And_Lubricants>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(fuel));
+            return fuel;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
     }
 
     public IEnumerable<Fuel_And_Lubricants> ReadFuels()
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Fuel_And_Lubricants";
+            var fuels = connection.Query<Fuel_And_Lubricants>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}", JsonConvert.SerializeObject(fuels));
+            return fuels;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 
     public void UpdateFuel(Fuel_And_Lubricants fuel)
     {
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(fuel));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"
+                UPDATE Fuel_And_Lubricants
+                SET
+                Fuel_Type=@Fuel_Type,
+                Price_Per_Liter=@Price_Per_Liter,
+                Amount=@Amount
+                WHERE Fuel_ID=@Fuel_ID";
+            connection.Execute(queryUpdate, fuel);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
     }
 }