WTI for July delivery rose 18 cents to settle at $102.66 a barrel on the New York Mercantile Exchange. Futures declined 5 cents this week. The volume of all futures traded was 14 percent lower than the 100-day average at 2:48 p.m.

Brent for July settlement fell 18 cents to end the session at $108.61 a barrel on the London-based ICE Futures Europe exchange. Volume was 13 percent higher than the 100-day average. The European benchmark crude closed at a $5.95 premium to WTI, down from $6.31 yesterday.