(svn r11376) -Fix: fill the town a oil rig is associated with before creating the name, otherwise every oil rig will become "<TOWN> Oilrig" which effectively means that there can be several oil rigs with exactly the same name.

src/station_cmd.cpp

@@ -2759,14 +2759,16 @@ void BuildOilRig(TileIndex tile)
 		DEBUG(misc, 0, "Can't allocate station for oilrig at 0x%X, reverting to oilrig only", tile);
 		return;
 	}
+
+	st->town = ClosestTownFromTile(tile, (uint)-1);
+	st->sign.width_1 = 0;
+
 	if (!GenerateStationName(st, tile, STATIONNAMING_OILRIG)) {
 		DEBUG(misc, 0, "Can't allocate station-name for oilrig at 0x%X, reverting to oilrig only", tile);
+		delete st;
 		return;
 	}
 
-	st->town = ClosestTownFromTile(tile, (uint)-1);
-	st->sign.width_1 = 0;
-
 	MakeOilrig(tile, st->index);
 
 	st->owner = OWNER_NONE;