Oil prices fell in early Asian trading Thursday, amid concerns about oversupply, after rising nearly 3 percent in the previous session.
Brent crude futures fell 19 cents, or 0.25 percent, to $76.79 a barrel by 0241 GMT. US West Texas Intermediate crude also fell 14 cents, or 0.2 percent, to $72.75 a barrel, according to Reuters data.
Both benchmarks rose about 3 percent on Wednesday amid optimism about oil demand and debt ceiling negotiations in the United States.
Oil prices are under pressure, including the unexpected jump in US oil inventories last week due to a new withdrawal from the Strategic Petroleum Reserve.