Oil ended trading lower the day before yesterday, giving up its early gains, as concerns about the banking sector prompted the two benchmarks to record their largest weekly losses in months, as the average decline in crude prices during the week reached about 12.5%.

Brent crude futures fell $1.73, or 2.3%, to $72.97 at settlement, while US West Texas Intermediate crude lost $1.61, or 2.4%, to $66.74. Brent lost about 12% during the week, recording the largest weekly loss since last December. West Texas Intermediate crude futures have fallen 13% since Friday's close.