Drilled to a total depth of 2,981 m (9,780 ft) in a water depth of 150 m (492 ft), well B1 16/3 hit gas and condensates in the Metlaoui Group of Eocene age, Eni said.

The Parex-operated Boranda-1 well, drilled to a depth of 3,657 m (11,998 ft) in the Esmeraldas Formation, found crude in four intervals of oil sands with a total thickness of 40 m (131 ft).

ExxonMobil, Guyana, offshore, discovery, oil, Snoek, Liza, Payara

The Snoek well, southeast of the Liza discovery, hit high-quality oil-bearing sandstone reservoirs, the company said.

The Qattameya Shallow-1 exploration well, drilled using the El Qaher II jackup rig, struck 37 m (121 ft) of net gas pay in high quality Pliocene sandstones, the company said.

The well, which is located in Contractual Area 1, hit 110 m (361 ft) of net oil pay from multiple good quality Pliocene reservoir sandstones, the company said in a news release.

The company plans to perform a three- to six-month extended production test starting in third-quarter 2017, following the completion in April of a light oil resource volume assessment, to help determine the commerciality of the discovery.

With 1.2 billion barrels of recoverable light oil, Repsol and Denver-based Armstrong Energy claim the discovery is the "largest U.S. onshore conventional hydrocarbons discovery in 30 years."

Lundin Norway, discovery, oil, Barents Sea, Filicudi

A string of oil discoveries, such as Johan Castberg, Wisting and Alta/Gohta, in recent years has added to the attractiveness of the Barents Sea.

Lundin Petroleum AB plans to spin off its assets from outside of Norway into a separately listed company and will distribute shares in the new firm to existing investors.

ExxonMobil, Guyana, Payara, oil, Liza, offshore, discovery

To better gauge resource potential, ExxonMobil said the discovery is being evaluated with two sidetracks drilled. A well test is underway.

Gulf of Mexico, W&T Offshore, oil, discovery, Mahogany

Advanced seismic data helped the company discover additional pay.

Preliminary results from Cobalt International Energy Inc.’s latest appraisal well at the North Platte prospect in the U.S. Gulf of Mexico show the well hit about 198 m (650 ft) of net oil pay.