Average porosity 10 %, permeability around 110 md.
4 growth stages in 160 m thick reef.
Diversity not described but all groups (stromatoporoids, tabulate and rugose corals) with different species and growth forms.

Ranging into Frasnian

Abstract of ref. 2126:
The Middle-Upper Devonian Kee Scarp reef complexes are oil-producing, stromatoporoid-dominated carbonates. Episodic increases in the rate of sea level rise produced multiple cycles of reef growth that exhibit backstepping characteristics. These carbonates have original interskeletal, intraskeletal, and intergranular porosity, mostly occluded by nonferroan, dull luminescent cements. Secondary porosity, represented by micropores of various types, developed during diagenesis by aggrading neomorphism and dissolution. The micropores represent the main reservoir porosity in the Kee Scarp limestone. Micropores in the Kee Scarp limestone can be classified into four categories based on their shapes.