Crude oil prices have plunged by 20% since June raising questions about when Opec will cut output. But as Hayley Platt reports some believe the lower prices are giving a struggling world economy a boost.
01:54
01:34
00:39
00:19
01:25
01:46
01:15
01:35
01:55
01:43
03:10
01:44
01:07
01:32
01:49
01:07
01:07
01:41
01:06
01:22
01:34
00:45
00:39
01:28
00:57
01:00
00:51
01:38
01:01
00:41
01:16
01:06
01:54
01:43
01:16
02:44
00:43
01:21
03:16
02:48
01:15
03:10
01:07
00:47
01:04
01:07
01:59
00:59
01:28
01:34
01:18
01:23
01:25
01:34
01:11
00:31
01:30
01:07
00:38
00:45
02:07
02:05
01:36
01:23
02:26
01:11
00:28
01:00
01:23
01:27
01:38
00:35
01:29
01:28
02:15
01:47
01:12
03:28
01:01
01:26
01:35
01:07
02:52
05:07
01:11
01:42
01:55
01:29
01:01
00:59
00:49
00:57
01:41
02:09
01:36
00:48
01:00
01:46
00:49
02:16