The properties contain about 93bcfe of total net proved reserves of which over 90% are proved developed producing (PDP).
KKR Natural Resources is a partnership between Kohlberg Kravis Roberts & Co (KKR) and Premier Natural Resources, and was formed to pursue investments in North American oil and gas properties.
Following the $40m acquisition of oil and gas assets in southeast Texas in November, the transaction is the second investment made by the company.
Premier Natural Resources currently operates a portfolio of assets located in the Texas Gulf Coast and Permian Basin.