Algerian state-run oil company Sonatrach will soon sign partnership agreements with Royal Dutch Shell PLC (RDSB) and Exxon Mobil Corp. (XOM) on shale gas exploration in the north African country, the firm's chief executive, Abdelhamid Zerguine, said in remarks published Thursday.

The new partnerships will be similar to the agreements signed earlier with Italy's Eni SpA (E) and Canada's Talisman Energy Inc. (TLM), Mr. Zerguine said, according to the official Algerie Presse Service, or APS.

APS didn't give any further details on the deals. Shell declined to comment.