9m barrels of condensate, lying in a nummulitic
limestone reservoir (see gmt15TunisFieldsApr14-14).
This unit thus represents the Nummulitic
Series" of Middlemiss (1896) the Khairabad Limestone" of Gee (1934) has been well-studied for the local biostratigrahic and sedimentolgical investigations (Sameeni and Butt 1992; Afzal et al.
Straightigraphic Committee of Pakistan formalized the name as Patal Formation" and extended this name to the other parts of Kohat-Potowar basin for Tarkhobi Shales" of Eames  part of the Hill Limestone" of Wynne  and Cotter  part of Nummulitic
Formation" of Waagen and Wynne  part of Nummulitic
Series" of Middlemiss  and Kuzagali Shales" of Latif .
In upper part of it, Karaj Formation has been placed gradually on Middle Eocene nummulitic
limestone (Figures 3, 4 and 5)
In a conservative scenario the nummulitic
Metlaoui / El Gueria reservoir is a gas only accumulation within the bounds of the DHI.