Crude oil futures gained on Tuesday as worries on euro zone’s debt problems eased in reaction to successful bond auction in Spain. Moreover, Germany’s investor confidence also increased for the fifth consecutive month easing the tensions among investors for the euro zone.

Crude oil futures contract for May delivery gained 1.2 percent or $1.27 to settle at $104.20 per barrel on the New York Mercantile Exchange. London’s Brent crude oil advanced 0.1 percent or $0.10 to settle at $118.78 per barrel on the ICE futures Exchange.

The price difference between the two benchmarks has decreased gradually mainly due to the news that owners of US pipeline have asked for permission to revert its flow for two weeks. Further the start of talks on Iran’s nuclear program has also eased the global oil supply tensions.

Among other energy commodities, gasoline futures contract for May delivery declined 1 percent or $0.03 to settle at $3.23 per gallon while heating oil futures for the same month delivery gained 0.3 percent or $0.01 to settle at $3.13 per gallon.

Natural gas futures contract for May delivery fell 3.2 percent or $0.06 to settle at $1.95 per million British thermal units.