Oil fell today despite dollar's drop, but trimmed its losses ahead of the release of the US drilling data by Baker Hughes.
Earlier this week, President Trump fired the national security adviser John Bolton, which raised odds about a possible easing of the Iranian oil sanctions, which leads to higher supply.
Baker Hughes will announce the US oil and natural gas drilling rigs count later today.
As of 16:47 GMT, the dollar index fell by 0.1% to 98.2 points, with a high of 98.4 and a low of 98.0.
By 16:43 GMT, WTI fell by 0.2% to $54.9 a barrel, with a high of $55.6 and a low of $54.4.
Brent fell by 0.2% to $60.2 a barrel, with a high of $60.8 and a low of $58.6.