Oil prices rose on Thursday after losses in previous three sessions due to market oversupply concerns, as the potential for tighter sanctions on Russian crude lent some support. Brent crude futures gained 37 cents, or 0.57%, to $65.72 a barrel by 0401 GMT. U.S. West Texas Intermediate crude climbed by 34 cents, or 0.55%, to $62.12 a barrel. Some analysts attributed the increases to a technic