Oil prices fell on Friday as they were drawn by concerns about progress in US-China trade talks.
Oil prices were weighed down by concerns that an economic slowdown could reduce fuel consumption, traders said.
The United States and China, the two biggest oil consumers in the world, could approach an agreement to end their trade dispute even though there are still some obstacles.
U.S. President Donald Trump on Thursday said both sides were "very close to making a deal," even though the United States remained hesitant to lift $ 250 billion in tariffs that China was trying to remove.
The price of thermal coal and natural gas, the main fuel for power plants, has fallen sharply amid slowing consumption.
WTI is on track for the fifth consecutive weekly rise. The Organization of Petroleum Exporting Countries (OPEC) and allied producers such as Russia, collectively known as OPEC +, agreed to cut production by 1.2 million barrels per day (bpd) this year to support prices.