Basin or Province

Structural Form

Source Rock

Dominant Kerogen Type

Main Reservoirs

Principal Maturation Stage

Reference

Arabian-Iranian

Platform

Gahkum & Tabuk fm; graptolitic sh

II

Khuff Fm (Perm); carb & clastics

Late Perm-Tr

Ala et al., 1980; al-Laboun, 1986

Erg Oriental, Erg Occidental

Platform

Silurian graptolitic sh

II

Camb-Tr ss

Cret

Tissot, 1984a; Balducchi & Pommier, 1970; Magloire, 1970

Permian, Anadarko

Platform

Silurian marine sh

II

Sil carb

Penn-Early Perm

Jones & Smith, 1965

Michigan

Circular sag

Niagara fm, off-reef carbnte

II

Sil carb

Late Cret-Early Tert

Gardner & Bray, 1984