diff --git a/FOR_RELEASE/GameData/CommunityResourcePack/CHANGELOG.txt b/FOR_RELEASE/GameData/CommunityResourcePack/CHANGELOG.txt
index cdf10b2..ed31b5d 100644
--- a/FOR_RELEASE/GameData/CommunityResourcePack/CHANGELOG.txt
+++ b/FOR_RELEASE/GameData/CommunityResourcePack/CHANGELOG.txt
@@ -1,3 +1,9 @@
+0.6.6 - 2017.02.04
+------------------
+Added common resource Sodium a potential high efficient electric propellant
+Added common resource Caesium a rare but dense and highly efficient electric propellant
+ResourceLode value set to zero to prevent exploits.
+
 0.6.5 - (2017.01.01)
 --------------------
 Updated asteroid and scanner settings
diff --git a/FOR_RELEASE/GameData/CommunityResourcePack/CRP.version b/FOR_RELEASE/GameData/CommunityResourcePack/CRP.version
index db3fe2f..8ae3b8d 100644
--- a/FOR_RELEASE/GameData/CommunityResourcePack/CRP.version
+++ b/FOR_RELEASE/GameData/CommunityResourcePack/CRP.version
@@ -10,7 +10,7 @@
      "VERSION":{
          "MAJOR":0,
          "MINOR":6,
-         "PATCH":5,
+         "PATCH":6,
          "BUILD":0
      },
      "KSP_VERSION":{
diff --git a/FOR_RELEASE/GameData/CommunityResourcePack/CommonResources.cfg b/FOR_RELEASE/GameData/CommunityResourcePack/CommonResources.cfg
index ad9f3c7..0928c8d 100644
--- a/FOR_RELEASE/GameData/CommunityResourcePack/CommonResources.cfg
+++ b/FOR_RELEASE/GameData/CommunityResourcePack/CommonResources.cfg
@@ -532,7 +532,7 @@ RESOURCE_DEFINITION
    density = 0.005
    flowMode = ALL_VESSEL
    transfer = NONE
-   unitCost = 250
+   unitCost = 0
    isTweakable = true
    isVisible = true
    volume = 1
@@ -1028,17 +1028,17 @@ RESOURCE_DEFINITION
 }
 
 RESOURCE_DEFINITION
- {
-+	abbreviation = Na
-+	name = Sodium
-+	density = 0.000968
-+	flowMode = ALL_VESSEL
-+	transfer = PUMP
-+	isTweakable = true
-+	isVisible = true
-+	unitCost = 1.4
-+	volume = 1	
-+}
+{
+	abbreviation = Na
+	name = Sodium
+	density = 0.000968
+	flowMode = ALL_VESSEL
+	transfer = PUMP
+	isTweakable = true
+	isVisible = true
+	unitCost = 1.4
+	volume = 1	
+}
 
 RESOURCE_DEFINITION
 {