diff --git a/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_AdvSeismicProspector.java b/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_AdvSeismicProspector.java
index 9a10f483..2b397329 100644
--- a/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_AdvSeismicProspector.java
+++ b/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_AdvSeismicProspector.java
@@ -128,7 +128,7 @@ public class GT_MetaTileEntity_AdvSeismicProspector extends GT_MetaTileEntity_Ba
         return true;
     }
 
-    public void prospectOils(HashMap<String, Integer> aOils) {
+    private void prospectOils(HashMap<String, Integer> aOils) {
 
         int tLeftXBound = GT_Utility.getScaleCoordinates(this.getBaseMetaTileEntity().getXCoord() - radius, 16);
         int tRightXBound = GT_Utility.getScaleCoordinates(this.getBaseMetaTileEntity().getXCoord() + radius, 16);