Commit 9f193e2

@@ -0,0 +1,14 @@
+namespace utility
+{
+  using System;
+  using System.Linq;
+  using System.Collections.Generic;
+
+  public static class Iterating
+  {
+    public static void Each<T>(this IEnumerable<T> items, Action<T> visitor){
+      foreach (var item in items ?? Enumerable.Empty<T>()) 
+        visitor(item);
+    }
+  }
+}

@@ -0,0 +1,38 @@
+namespace domain
+{
+  public class BOED : IUnitOfMeasure
+  {
+    public decimal Convert(decimal amount, IUnitOfMeasure units)
+    {
+      // need to do actual conversion here;
+      return amount;
+    }
+
+    public bool Equals(BOED other)
+    {
+      if (ReferenceEquals(null, other)) return false;
+      if (ReferenceEquals(this, other)) return true;
+      return true;
+    }
+
+    public override bool Equals(object obj)
+    {
+      if (ReferenceEquals(null, obj)) return false;
+      if (ReferenceEquals(this, obj)) return true;
+      if (obj.GetType() != typeof (BOED)) return false;
+      return Equals((BOED) obj);
+    }
+
+    public override int GetHashCode()
+    {
+      return (name != null ? name.GetHashCode() : 0);
+    }
+
+    public override string ToString()
+    {
+      return name;
+    }
+
+    readonly string name = "BOED";
+  }
+}

@@ -41,6 +41,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Greeting.cs" />
+    <Compile Include="BOED.cs" />
     <Compile Include="Commodity.cs" />
     <Compile Include="CommoditySplits.cs" />
     <Compile Include="DeclineCurve.cs" />
@@ -51,7 +52,10 @@
     <Compile Include="Production.cs" />
     <Compile Include="Quantity.cs" />
     <Compile Include="TypeCurve.cs" />
+    <Compile Include="Units.cs" />
     <Compile Include="Well.cs" />
+    <Compile Include="IUnitOfMeasure.cs" />
+    <Compile Include="utility\iterating.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" Condition=" '$(OS)' == 'Windows_NT' " />

@@ -3,6 +3,7 @@ namespace domain
   using System;
   using System.Collections.Generic;
   using System.Linq;
+  using utility;
 
   public class DrillSchedule
   {

@@ -0,0 +1,7 @@
+namespace domain
+{
+  public interface IUnitOfMeasure
+  {
+    decimal Convert(decimal amount, IUnitOfMeasure units);
+  }
+}

@@ -0,0 +1,22 @@
+namespace domain
+{
+  using System;
+
+  public static class Units
+  {
+    public static Percent Percent(this decimal percentage)
+    {
+      return new Percent(percentage/100);
+    }
+
+    public static IQuantity BOED(this int quantity)
+    {
+      return BOED(Convert.ToDecimal(quantity));
+    }
+
+    public static IQuantity BOED(this decimal quantity)
+    {
+      return new Quantity(quantity, new BOED());
+    }
+  }
+}

@@ -3,6 +3,7 @@ namespace domain
   using System;
   using System.Collections.Generic;
   using System.Linq;
+  using utility;
 
   public class Well : IWell
   {
@@ -33,71 +34,4 @@ namespace domain
     IQuantity GrossProductionFor<T>(Month month) where T : ICommodity, new();
     IQuantity NetProductionFor<T>(Month month) where T : ICommodity, new();
   }
-
-  public static class Units
-  {
-    public static Percent Percent(this decimal percentage)
-    {
-      return new Percent(percentage/100);
-    }
-
-    public static IQuantity BOED(this int quantity)
-    {
-      return BOED(Convert.ToDecimal(quantity));
-    }
-
-    public static IQuantity BOED(this decimal quantity)
-    {
-      return new Quantity(quantity, new BOED());
-    }
-  }
-
-  public class BOED : IUnitOfMeasure
-  {
-    public decimal Convert(decimal amount, IUnitOfMeasure units)
-    {
-      // need to do actual conversion here;
-      return amount;
-    }
-
-    public bool Equals(BOED other)
-    {
-      if (ReferenceEquals(null, other)) return false;
-      if (ReferenceEquals(this, other)) return true;
-      return true;
-    }
-
-    public override bool Equals(object obj)
-    {
-      if (ReferenceEquals(null, obj)) return false;
-      if (ReferenceEquals(this, obj)) return true;
-      if (obj.GetType() != typeof (BOED)) return false;
-      return Equals((BOED) obj);
-    }
-
-    public override int GetHashCode()
-    {
-      return (name != null ? name.GetHashCode() : 0);
-    }
-
-    public override string ToString()
-    {
-      return name;
-    }
-
-    readonly string name = "BOED";
-  }
-
-  public interface IUnitOfMeasure
-  {
-    decimal Convert(decimal amount, IUnitOfMeasure units);
-  }
-
-  public static class Iterating
-  {
-    public static void Each<T>(this IEnumerable<T> items, Action<T> visitor){
-      foreach (var item in items ?? Enumerable.Empty<T>()) 
-        visitor(item);
-    }
-  }
 }