diff --git a/src/ai/api/ai_airport.cpp b/src/ai/api/ai_airport.cpp
index ce30782cb7..7b11197657 100644
--- a/src/ai/api/ai_airport.cpp
+++ b/src/ai/api/ai_airport.cpp
@@ -22,7 +22,7 @@
 
 /* static */ bool AIAirport::IsAirportInformationAvailable(AirportType type)
 {
-	return type >= 0 && type < (AirportType)NUM_AIRPORTS;
+	return type >= 0 && type < (AirportType)NUM_AIRPORTS && AirportSpec::Get(type)->enabled;
 }
 
 /* static */ Money AIAirport::GetPrice(AirportType type)
diff --git a/src/airport.h b/src/airport.h
index c3b2c5d83b..e532643a26 100644
--- a/src/airport.h
+++ b/src/airport.h
@@ -35,8 +35,8 @@ enum {
 	AT_HELIDEPOT     =   6,
 	AT_INTERCON      =   7,
 	AT_HELISTATION   =   8,
-	NUM_AIRPORTS     =   9,
 	AT_OILRIG        =   9,
+	NUM_AIRPORTS     =  10,
 	AT_DUMMY         = 255
 };
 
diff --git a/src/newgrf_airport.cpp b/src/newgrf_airport.cpp
index cad50c044e..e39ab29a94 100644
--- a/src/newgrf_airport.cpp
+++ b/src/newgrf_airport.cpp
@@ -20,8 +20,7 @@
 
 static AirportClass _airport_classes[APC_MAX];
 
-AirportSpec AirportSpec::dummy = {NULL, NULL, 0, 0, 0, 0, 0, MIN_YEAR, MIN_YEAR, STR_NULL, ATP_TTDP_LARGE, APC_BEGIN};
-AirportSpec AirportSpec::oilrig = {NULL, NULL, 0, 1, 1, 0, 4, MIN_YEAR, MIN_YEAR, STR_NULL, ATP_TTDP_OILRIG, APC_BEGIN};
+AirportSpec AirportSpec::dummy = {NULL, NULL, 0, 0, 0, 0, 0, MIN_YEAR, MIN_YEAR, STR_NULL, ATP_TTDP_LARGE, APC_BEGIN, false};
 
 AirportSpec AirportSpec::specs[NUM_AIRPORTS];
 
@@ -33,7 +32,6 @@ AirportSpec AirportSpec::specs[NUM_AIRPORTS];
  */
 /* static */ const AirportSpec *AirportSpec::Get(byte type)
 {
-	if (type == AT_OILRIG) return &oilrig;
 	assert(type < lengthof(AirportSpec::specs));
 	return &AirportSpec::specs[type];
 }
@@ -46,13 +44,13 @@ AirportSpec AirportSpec::specs[NUM_AIRPORTS];
  */
 /* static */ AirportSpec *AirportSpec::GetWithoutOverride(byte type)
 {
-	if (type == AT_OILRIG) return &oilrig;
 	assert(type < lengthof(AirportSpec::specs));
 	return &AirportSpec::specs[type];
 }
 
 bool AirportSpec::IsAvailable() const
 {
+	if (!this->enabled) return false;
 	if (_cur_year < this->min_year) return false;
 	if (_settings_game.station.never_expire_airports) return true;
 	return _cur_year <= this->max_year;
@@ -156,7 +154,7 @@ void BindAirportSpecs()
 {
 	for (int i = 0; i < NUM_AIRPORTS; i++) {
 		AirportSpec *as = AirportSpec::GetWithoutOverride(i);
-		BindAirportSpecToClass(as);
+		if (as->enabled) BindAirportSpecToClass(as);
 	}
 }
 
diff --git a/src/newgrf_airport.h b/src/newgrf_airport.h
index 358ecd2d65..cb542f3164 100644
--- a/src/newgrf_airport.h
+++ b/src/newgrf_airport.h
@@ -61,6 +61,8 @@ struct AirportSpec {
 	StringID name;                         ///< name of this airport
 	TTDPAirportType ttd_airport_type;      ///< ttdpatch airport type (Small/Large/Helipad/Oilrig)
 	AirportClassID aclass;                 ///< the class to which this airport type belongs
+	/* Newgrf data */
+	bool enabled;                          ///< entity still avaible (by default true).newgrf can disable it, though
 
 	static const AirportSpec *Get(byte type);
 	static AirportSpec *GetWithoutOverride(byte type);
diff --git a/src/table/airport_defaults.h b/src/table/airport_defaults.h
index e6423e7d97..b8d50debe2 100644
--- a/src/table/airport_defaults.h
+++ b/src/table/airport_defaults.h
@@ -377,16 +377,16 @@ static AirportTileTable *_tile_table_helistation[] = {
 #undef MKEND
 
 /** General AirportSpec definition. */
-#define AS_GENERIC(att, depot_tbl, num_depots, size_x, size_y, noise, catchment, min_year, max_year, ttdpatch_type, class_id, name) \
-	{att, depot_tbl, num_depots, size_x, size_y, noise, catchment, min_year, max_year, name, ttdpatch_type, class_id}
+#define AS_GENERIC(att, depot_tbl, num_depots, size_x, size_y, noise, catchment, min_year, max_year, ttdpatch_type, class_id, name, enabled) \
+	{att, depot_tbl, num_depots, size_x, size_y, noise, catchment, min_year, max_year, name, ttdpatch_type, class_id, enabled}
 
 /** AirportSpec definition for airports without any depot. */
 #define AS_ND(ap_name, size_x, size_y, min_year, max_year, catchment, noise, ttdpatch_type, class_id, name) \
-	AS_GENERIC(_tile_table_##ap_name, NULL, 0, size_x, size_y, noise, catchment, min_year, max_year, ttdpatch_type, class_id, name)
+	AS_GENERIC(_tile_table_##ap_name, NULL, 0, size_x, size_y, noise, catchment, min_year, max_year, ttdpatch_type, class_id, name, true)
 
 /** AirportSpec definition for airports with at least one depot. */
 #define AS(ap_name, size_x, size_y, min_year, max_year, catchment, noise, ttdpatch_type, class_id, name) \
-	AS_GENERIC(_tile_table_##ap_name, _airport_depots_##ap_name, lengthof(_airport_depots_##ap_name), size_x, size_y, noise, catchment, min_year, max_year, ttdpatch_type, class_id, name)
+	AS_GENERIC(_tile_table_##ap_name, _airport_depots_##ap_name, lengthof(_airport_depots_##ap_name), size_x, size_y, noise, catchment, min_year, max_year, ttdpatch_type, class_id, name, true)
 
 /* The helidepot and helistation have ATP_TTDP_SMALL because they are at ground level */
 extern const AirportSpec _origin_airport_specs[] = {
@@ -399,6 +399,7 @@ extern const AirportSpec _origin_airport_specs[] = {
 	AS(helidepot, 2, 2, 1976, MAX_YEAR, 4, 2, ATP_TTDP_SMALL, APC_HELIPORT, STR_AIRPORT_HELIDEPOT),
 	AS(intercontinental, 9, 11, 2002, MAX_YEAR, 10, 25, ATP_TTDP_LARGE, APC_HUB, STR_AIRPORT_INTERCONTINENTAL),
 	AS(helistation, 4, 2, 1980, MAX_YEAR, 4, 3, ATP_TTDP_SMALL, APC_HELIPORT, STR_AIRPORT_HELISTATION),
+	AS_GENERIC(NULL, NULL, 0, 1, 1, 0, 4, 0, 0, ATP_TTDP_OILRIG, APC_HELIPORT, STR_NULL, false),
 };
 
 assert_compile(NUM_AIRPORTS == lengthof(_origin_airport_specs));