The recent decline in oil prices slowed to a trickle in volatile trading May 23 ahead of the extended Memorial Day holiday weekend that marks the start of the summer driving season in the US.
Approval of the Keystone XL crude oil pipeline project should be based on its merits, and not linked to higher taxes or more regulations, John A. Barrasso (Wyo.), John Hoeven (ND) and 22 other US Senate Republicans said in a May 23 letter to US President Barack Obama.