Here, a recap of the first quarter's 15 biggest oil and gas discoveries, which altogether are propelling the increase. The benchmark comes as operator Eni solidifies concession agreements and ramps up exploration and development in the North African country. The Apollonia tight-gas chalk play is located in the Abu Gharadig Basin in the Western Desert of Egypt. This has long been ignored as a gas play in the overburden, while the Jurassic and Cretaceous oil fields deeper in the basin have been explored and developed. More gas is flowing from Egyptian waters and the Eastern Mediterranean with BP’s launch of its Atoll Phase One project.