The price of US-produced oil fell in early December to a five-month low despite Saudi threats of further cuts to supplies.
West Texas Intermediate, known as WTI crude, dropped to $72 a barrel, its lowest level since July. It's popped up again to over $73 a barrel just before Christmas.
Global benchmark Brent dropped to trade near $77 a barrel after falling more than 6 percent in the preceding three sessions. It also popped up again to $79 a barrel.
Other oil market news is that Angola has pulled out of OPEC after being a member for 16 years.
The oil market continues to confound analysts' predictions as we head into the holiday period.
