diff --git a/tests/gis_tests/geoapp/test_functions.py b/tests/gis_tests/geoapp/test_functions.py
index d778810480..936a00b56b 100644
--- a/tests/gis_tests/geoapp/test_functions.py
+++ b/tests/gis_tests/geoapp/test_functions.py
@@ -167,8 +167,8 @@ class GISFunctionsTests(TestCase):
     def test_difference(self):
         geom = Point(5, 23, srid=4326)
         qs = Country.objects.annotate(diff=functions.Difference('mpoly', geom))
-        # For some reason SpatiaLite does something screwy with the Texas geometry here.
-        if spatialite:
+        # SpatiaLite and Oracle do something screwy with the Texas geometry.
+        if spatialite or oracle:
             qs = qs.exclude(name='Texas')
 
         for c in qs:
@@ -179,8 +179,8 @@ class GISFunctionsTests(TestCase):
         """Testing with mixed SRID (Country has default 4326)."""
         geom = Point(556597.4, 2632018.6, srid=3857)  # Spherical mercator
         qs = Country.objects.annotate(difference=functions.Difference('mpoly', geom))
-        # For some reason SpatiaLite does something screwy with the Texas geometry here.
-        if spatialite:
+        # SpatiaLite and Oracle do something screwy with the Texas geometry.
+        if spatialite or oracle:
             qs = qs.exclude(name='Texas')
         for c in qs:
             self.assertTrue(c.mpoly.difference(geom).equals(c.difference))
@@ -224,6 +224,9 @@ class GISFunctionsTests(TestCase):
             if spatialite or mysql:
                 # When the intersection is empty, Spatialite and MySQL return None
                 expected = None
+            elif oracle:
+                # When the intersection is empty, Oracle returns an empty string
+                expected = ''
             else:
                 expected = c.mpoly.intersection(geom)
             self.assertEqual(c.inter, expected)
@@ -378,6 +381,9 @@ class GISFunctionsTests(TestCase):
     def test_sym_difference(self):
         geom = Point(5, 23, srid=4326)
         qs = Country.objects.annotate(sym_difference=functions.SymDifference('mpoly', geom))
+        # Oracle does something screwy with the Texas geometry.
+        if oracle:
+            qs = qs.exclude(name='Texas')
         for country in qs:
             self.assertTrue(country.mpoly.sym_difference(geom).equals(country.sym_difference))
 
diff --git a/tests/gis_tests/geogapp/tests.py b/tests/gis_tests/geogapp/tests.py
index a92d6b4e2b..80afbd63c7 100644
--- a/tests/gis_tests/geogapp/tests.py
+++ b/tests/gis_tests/geogapp/tests.py
@@ -98,7 +98,7 @@ class GeographyTest(TestCase):
     def test06_geography_area(self):
         "Testing that Area calculations work on geography columns."
         # SELECT ST_Area(poly) FROM geogapp_zipcode WHERE code='77002';
-        ref_area = 5439100.95415646 if oracle else 5439084.70637573
+        ref_area = 5439100.13586914 if oracle else 5439084.70637573
         tol = 5
         z = Zipcode.objects.area().get(code='77002')
         self.assertAlmostEqual(z.area.sq_m, ref_area, tol)
@@ -113,7 +113,10 @@ class GeographyFunctionTests(TestCase):
         """
         Testing Distance() support on non-point geography fields.
         """
-        ref_dists = [0, 4891.20, 8071.64, 9123.95]
+        if oracle:
+            ref_dists = [0, 4899.68, 8081.30, 9115.15]
+        else:
+            ref_dists = [0, 4891.20, 8071.64, 9123.95]
         htown = City.objects.get(name='Houston')
         qs = Zipcode.objects.annotate(distance=Distance('poly', htown.point))
         for z, ref in zip(qs, ref_dists):
@@ -125,7 +128,7 @@ class GeographyFunctionTests(TestCase):
         Testing that Area calculations work on geography columns.
         """
         # SELECT ST_Area(poly) FROM geogapp_zipcode WHERE code='77002';
-        ref_area = 5439100.95415646 if oracle else 5439084.70637573
+        ref_area = 5439100.13587 if oracle else 5439084.70637573
         tol = 5
         z = Zipcode.objects.annotate(area=Area('poly')).get(code='77002')
         self.assertAlmostEqual(z.area.sq_m, ref_area, tol)