diff --git a/youtube_dl/extractor/cinemax.py b/youtube_dl/extractor/cinemax.py
new file mode 100644
index 00000000000..7f89d33de93
--- /dev/null
+++ b/youtube_dl/extractor/cinemax.py
@@ -0,0 +1,29 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from .hbo import HBOBaseIE
+
+
+class CinemaxIE(HBOBaseIE):
+    _VALID_URL = r'https?://(?:www\.)?cinemax\.com/(?P<path>[^/]+/video/[0-9a-z-]+-(?P<id>\d+))'
+    _TESTS = [{
+        'url': 'https://www.cinemax.com/warrior/video/s1-ep-1-recap-20126903',
+        'md5': '82e0734bba8aa7ef526c9dd00cf35a05',
+        'info_dict': {
+            'id': '20126903',
+            'ext': 'mp4',
+            'title': 'S1 Ep 1: Recap',
+        },
+        'expected_warnings': ['Unknown MIME type application/mp4 in DASH manifest'],
+    }, {
+        'url': 'https://www.cinemax.com/warrior/video/s1-ep-1-recap-20126903.embed',
+        'only_matching': True,
+    }]
+
+    def _real_extract(self, url):
+        path, video_id = re.match(self._VALID_URL, url).groups()
+        info = self._extract_info('https://www.cinemax.com/%s.xml' % path, video_id)
+        info['id'] = video_id
+        return info
diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
index 676ad3f7d17..487ef277888 100644
--- a/youtube_dl/extractor/extractors.py
+++ b/youtube_dl/extractor/extractors.py
@@ -194,6 +194,7 @@
     ChirbitProfileIE,
 )
 from .cinchcast import CinchcastIE
+from .cinemax import CinemaxIE
 from .ciscolive import (
     CiscoLiveSessionIE,
     CiscoLiveSearchIE,
diff --git a/youtube_dl/extractor/hbo.py b/youtube_dl/extractor/hbo.py
index 44440233d78..68df748f56a 100644
--- a/youtube_dl/extractor/hbo.py
+++ b/youtube_dl/extractor/hbo.py
@@ -13,19 +13,7 @@
 )
 
 
-class HBOIE(InfoExtractor):
-    IE_NAME = 'hbo'
-    _VALID_URL = r'https?://(?:www\.)?hbo\.com/(?:video|embed)(?:/[^/]+)*/(?P<id>[^/?#]+)'
-    _TEST = {
-        'url': 'https://www.hbo.com/video/game-of-thrones/seasons/season-8/videos/trailer',
-        'md5': '8126210656f433c452a21367f9ad85b3',
-        'info_dict': {
-            'id': '22113301',
-            'ext': 'mp4',
-            'title': 'Game of Thrones - Trailer',
-        },
-        'expected_warnings': ['Unknown MIME type application/mp4 in DASH manifest'],
-    }
+class HBOBaseIE(InfoExtractor):
     _FORMATS_INFO = {
         'pro7': {
             'width': 1280,
@@ -65,12 +53,8 @@ class HBOIE(InfoExtractor):
         },
     }
 
-    def _real_extract(self, url):
-        display_id = self._match_id(url)
-        webpage = self._download_webpage(url, display_id)
-        location_path = self._parse_json(self._html_search_regex(
-            r'data-state="({.+?})"', webpage, 'state'), display_id)['video']['locationUrl']
-        video_data = self._download_xml(urljoin(url, location_path), display_id)
+    def _extract_info(self, url, display_id):
+        video_data = self._download_xml(url, display_id)
         video_id = xpath_text(video_data, 'id', fatal=True)
         episode_title = title = xpath_text(video_data, 'title', fatal=True)
         series = xpath_text(video_data, 'program')
@@ -167,3 +151,25 @@ def _real_extract(self, url):
             'thumbnails': thumbnails,
             'subtitles': subtitles,
         }
+
+
+class HBOIE(HBOBaseIE):
+    IE_NAME = 'hbo'
+    _VALID_URL = r'https?://(?:www\.)?hbo\.com/(?:video|embed)(?:/[^/]+)*/(?P<id>[^/?#]+)'
+    _TEST = {
+        'url': 'https://www.hbo.com/video/game-of-thrones/seasons/season-8/videos/trailer',
+        'md5': '8126210656f433c452a21367f9ad85b3',
+        'info_dict': {
+            'id': '22113301',
+            'ext': 'mp4',
+            'title': 'Game of Thrones - Trailer',
+        },
+        'expected_warnings': ['Unknown MIME type application/mp4 in DASH manifest'],
+    }
+
+    def _real_extract(self, url):
+        display_id = self._match_id(url)
+        webpage = self._download_webpage(url, display_id)
+        location_path = self._parse_json(self._html_search_regex(
+            r'data-state="({.+?})"', webpage, 'state'), display_id)['video']['locationUrl']
+        return self._extract_info(urljoin(url, location_path), display_id)