Hess Corp. (HES) detailed first-quarter 2015 operational results April 29.

In the Bakken, net production increased about 70% to 108,000 barrels of oil equivalent per day (boe/d) from first-quarter 2014. During this year’s quarter, 70 gross wells were brought on production in the Bakken, and per-well drilling and completions cost about $6.8 million, $7.5 million less in than last year’s first quarter. There were 12 rigs on average, lower than first-quarter 2014’s 17. Currently, eight rigs are operating for the rest of the year.

On joint-venture acreage in the Utica, five wells were drilled and net production averaged 17Mboe/d, lower than first-quarter 2014’s 2 Mboe/d.

In the U.S. Gulf of Mexico, Tubular Bells produced 18Mboe/d and could produce between 30,000 boe/d and 35 Mboe/d the rest of the year.

A fourth production well is scheduled to be brought online in the second quarter. The nonoperated Sicily prospect began exploration drilling in January. They are scheduled for completion in 2015’s second quarter.

Regarding worldwide operations, Hess also detailed results for the quarter offshore Norway, onshore Kurdistan, offshore Guyana and in Libya.

Capital and exploratory spending for the quarter totaled $1.3 billion.

Hess Corp. is based in New York.