Riverstone Energy Limited paid $175 million to NGP Energy Capital and will be joined by other Riverstone funds in its investment. 

Centennial is focused in the red-hot Delaware sub-basin of the Permian in west Texas.

Interest in the trend has increased dramatically after lagging that of the Midland basin for the past few years when operators were wary of the challenging geology and formations that were believed to produce more natural gas than those in the Midland.

However,