"The Red basin of Szechuan province contains a thick series of Mesozoic and possibly Tertiary redbeds which overlies Triassic marine limestone and a largely unknown succession of Paleozoic formations. Many anticlinal folds are known, and oil is present in small amounts at several seepages and in numerous wells drilled for brine. Prospects for production from the redbeds do not appear to be good. The Triassic limestone does not contain oil in commercial quantities on one well-formed anticline, but it has been tested at only one other locality. Possibilities of the underlying Paleozoic beds, particularly the Permian which probably occurs throughout the basin, are worthy of careful consideration."