The oil and gas assets held by TNH include the right to explore for and exploit the oil and gas resource potential within certain blocks ranging over an expansive area, including both onshore and offshore, of North and West Africa.

The exploration stage of each block varies, however no reserves have yet been assigned.

Currently, TNH holds 100% working interest in the El Jem block which is situated on the east coast of Tunisia and 100% working interest in the South Siwa permit in Egypt.

It also holds 42% working interest in the Tano Shallow permit in Ghana, where Interoil is the operator of the permit and 12.6% working interest in the CI-105 permit in Ivory Coast with the operator being Anadarko while the other major partner being Tullow Oil.