Component 2:  Hydrocarbon Column Depth and Height

Engelder, T., and Leftwich, J.T., 1997,  A pore-pressure limit in overpressured South Texas oil and gas fields:  in Surdam, R.C., ed., Seals, Traps, and the Petroleum System:  American Association of Petroleum Geologists Memoir 67 p. 255-267.